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1.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 124-132, 2024.
Article in Chinese | WPRIM | ID: wpr-1003774

ABSTRACT

ObjectiveTo analyze the antidepressant quality markers(Q-Marker) of Bupleuri Radix(BP) before and after vinegar-processing by ultra-performance liquid chromatography-quadrupole-time-of-flight mass spectrometry(UPLC-Q-TOF-MS), multivariate statistical analysis and network pharmacology. MethodUPLC-Q-TOF-MS was used to analyze the chemical basis of raw and vinegar-processed products of BP, and principal component analysis(PCA) orthogonal partial least squares-discriminant analysis(OPLS-DA) were used to identify the differential components in BP that changed significantly before and after vinegar-processing, which were regarded as candidate quality markers(Q-Marker). Then the disease-drug-component-target network related to antidepressant effect of BP was constructed by network pharmacology, and the antidepressant Q-Marker of raw and vinegar-processed products of BP was determined. Rats were randomly divided into blank group, model group, fluoxetine group(2.67 mg·kg-1) and total saponin group(0.72 mg·kg-1), except the blank group, rats in the other groups were subjected to chronic unpredictable mild stress(CUMS). Three weeks after the start of modeling, rats in each administration group were given the corresponding dose of drugs once a day for 4 weeks, and rats in the blank and model groups were given normal saline with dose of 10 mL·kg-1. At 1 day before modeling, 21 days and 28 days after administration, body mass weighing, sucrose preference test and open field test were performed on each group . After 28 days of administration, real-time fluorescence quantitative polymerase chain reaction(Real-time PCR) was used to detect the mRNA expression levels of phosphatidylinositol 3-kinase(PI3K), protein kinase B(Akt), mammalian target of rapamycin(mTOR), glycogen synthase kinase-3β(GSK-3β), forkhead box transcription factor O3a(FoxO3a) and β-catenin in hippocampal tissues of rats in each group, while protein expression levels of PI3K, Akt, mTOR and FoxO3a in hippocampal tissues of rats in each group were detected by Western blot. ResultThere were 19 components in BP showed significant changes before and after vinegar-processing, and 9 components such as saikosaponin A, saikosaponin B1, saikosaponin B2, saikosaponin C and saikosaponin D were identified as potential Q-Marker through S-plot differential marker screening. Combined with the disease-drug-component-target network, saikosaponin A, saikosaponin B1, saikosaponin B2 and saikosaponin D were identified as antidepressant Q-Marker of raw and vinegar-processed products of BP. According to the results of pharmacodynamic tests, after 28 d of administration, compared with the blank group, the body mass, sucrose preference index and open field total score of rats in model group, fluoxetine group and total saponin group decreased significantly(P<0.01). Compared with the model group, the body mass, sucrose preference index and open field total score in total saponin group increased significantly(P<0.01). Compared with the blank group, mRNA expression levels of PI3K, Akt, mTOR and β-catenin in hippocampus of rats in the model group decreased significantly(P<0.05), while mRNA expression levels of GSK-3β and FoxO3a increased significantly(P<0.05). Compared with the model group, mRNA expression levels of PI3K, Akt, mTOR and β-catenin in hippocampus of rats in the total saponin group were increased significantly(P<0.05), while mRNA expression levels of GSK-3β and FoxO3a decreased significantly(P<0.05). Compared with the blank group, the protein expression levels of Akt and mTOR in hippocampus of the model group decreased significantly(P<0.01), while the protein expression levels of PI3K and FoxO3a increased significantly(P<0.01). Compared with the model group, the expression level of Akt in hippocampus of the total saponin group increased significantly(P<0.01), the mTOR expression level was increased but not statistically significant, while the protein expression levels of PI3K and FoxO3a decreased significantly(P<0.01). ConclusionThe chemical constituents of BP changed greatly after vinegar-processing, and the antidepressant Q-Marker of raw and vinegar-processed products of BP was determined by chemical basis, pharmacodynamics, network pharmacology and signaling pathway, which provided a reference for further research on quality control, pharmacodynamic substance basis and processing mechanism of BP.

2.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 130-139, 2024.
Article in Chinese | WPRIM | ID: wpr-999169

ABSTRACT

ObjectiveTo observe the effects of Hedysari Radix polysaccharide on the apoptosis of gastric sinus smooth muscle cells and explore the underlying mechanism via the insulin-like growth factor-1 (IGF-1)/phosphatidylinositol 3-kinase (PI3K)/serine-threonine kinase (Akt) pathway in the rat model of diabetic gastroparesis (DGP). MethodSixty-two Wistar male rats were randomized into a blank group (n=12) and a modelling group (n=50). The rat model of DGP was established by small-dose multiple intraperitoneal injections of streptozotocin combined with an irregular high-fat and high-sugar diet for 4 weeks. The modeled rats were randomized into model group, mosapride citrate (1.35 mg·kg-1), and high-, medium-, and low-dose (200, 100, and 50 mg·kg-1, respectively) Hedysari Radix polysaccharide groups. The rats were administrated with corresponding drugs by gavage, and those in the blank and model groups with equal volumes of pure water by gavage once a day for 8 consecutive weeks. The random blood glucose and body mass were measured every 2 weeks, and gastric emptying rate was calculated. Hematoxylin-eosin (HE) staining was used to observe the pathological changes of smooth muscle in gastric antrum, and terminal deoxynucleoitidyl transferase-mediated nick-end labeling (TUNEL) was employed to detect the apoptosis of smooth muscle cells in the gastric antrum. The expression of IGF-1, phosphorylated (p)-PI3K, and p-Akt in the smooth muscle of gastric sinus tissue was detected by immunohistochemistry. Western blot was employed to determine the protein levels of IGF-1, p-PI3K/PI3K, p-Akt/Akt, B-cell lymphoma-2 (Bcl-2), and Bcl-2-associated X protein (Bax) in the smooth muscle of the gastric antrum. ResultCompared with the blank group, the model group showed elevated random blood glucose at all time points (P<0.01), decreased body mass and gastric emptying rate (P<0.01), increased apoptotic index of smooth muscle cells in the gastric antrum (P<0.01), down-regulated protein levels of IGF-1, p-PI3K/PI3K, p-Akt/Akt, and Bcl-2, and up-regulated protein level of Bax (P<0.01). Compared with the model group, the 8 weeks of drug administration lowered the random blood glucose, increased the body mass and gastric emptying rate (P<0.05, P<0.01), decreased the apoptotic index of smooth muscle cells in the gastric antrum (P<0.05, P<0.01), up-regulated the protein levels of IGF-1, p-PI3K/PI3K, p-Akt/Akt, and Bcl-2, and down-regulated the protein level of Bax (P<0.05, P<0.01). Compared with the mosapride citrate group,the administration of low-dose Hedysari Radix polysaccharide for 6 and 8 weeks lowered the random blood glucose and decreased the body mass (P<0.05, P<0.01),low and medium-dose Hedysari Radix polysaccharide decreased the gastric emptying rate and the apoptotic index of smooth muscle cells in the astragaloside low-dose group decreased (P<0.05). The protein levels of IGF-1,p-PI3K/PI3K,p-Akt/Akt and Bcl-2(low dose)were down-regulated and the protein level of Bax was up-regulated by low doses of Hedysari Radix polysaccharide (P<0.05, P<0.01). Compared with high-dose Hedysari Radix polysaccharide, low-dose Hedysari Radix polysaccharide elevated random blood glucose and reduced body mass after 6 and 8 weeks of administration (P<0.05, P<0.01), and the low and medium doses decreased the gastric emptying rate, increased the apoptotic index of smooth muscle cells in the gastric antrum (P<0.05, P<0.01), down-regulated the protein levels of IGF-1, p-PI3K/PI3K, p-Akt/Akt, and Bcl-2, and up-regulated the protein level of Bax (P<0.05, P<0.01). Compared with the medium-dose group,the low-dose group of Hedysari Radix polysaccharide had lower body mass,lower gastric emptying rate in rats,higher apoptotic index of smooth muscle cells in gastric sinus tissue after 6 and 8 weeks of administration (P<0.05, P<0.01), and lower protein expression of IGF-1,p-PI3K/PI3K,p-Akt/Akt. ConclusionHedysari Radix polysaccharide protects the smooth muscle cells in gastric antrum against apoptotic injury and promotes gastric motility by activating the IGF-1/PI3K/Akt signaling pathway, as manifested by the up-regulated expression of IGF-1, p-PI3K, p-Akt, and Bcl-2 and down-regulated expression of Bax.

3.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 69-76, 2023.
Article in Chinese | WPRIM | ID: wpr-953925

ABSTRACT

ObjectiveTo investigate the effect of Stemona tuberosa alkaloids (STA) on apoptosis and phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) and c-Jun N-terminal kinase/p38 mitogen-activated protein kinase (JNK/p38 MAPK) signaling pathways in human lung cancer A549 cells. MethodA549 cells were classified into blank group and STA groups (100, 150, 200, 250, 300 mg⋅L-1). Thiazole blue (MTT) assay and colony formation assay were used to evaluate the proliferation of A549 cells. Apoptosis was observed based on Hoechst 33258 staining, flow cytometry, and Annexin V-FITC/PI staining. Western blot was employed to detect the expression of apoptosis-related proteins cysteine-aspartic acid protease-3 (Caspase-3), B-cell lymphoma-2 (Bcl-2)-associated X protein (Bax), and Bcl-2, and the expression of PI3K, phosphorylated (p)-PI3K, Akt, p-Akt, JNK, p-JNK, p38 MAPK, and p-p38 MAPK. ResultCompared with the blank group, STA groups (150, 200, 250, 300 mg⋅L-1) demonstrated the increase in inhibition rate of cell proliferation (P<0.01) and cell clone inhibition rate, and decrease in cell clone formation rate (P<0.01). In comparison with the blank group, STA groups showed typical characteristics of apoptosis, such as chromatin condensation and enhanced fluorescence reaction. The apoptosis rate of STA groups was significantly higher than that of the blank group (P<0.01). Compared with the blank group, STA (150, 200, 250, 300 mg⋅L-1) significantly up-regulated the protein expression of Caspase-3 and Bax (P<0.05, P<0.01) and down-regulated the expression of Bcl-2 protein (P<0.01). Compared with the blank group, STA had no significant influence on the total protein expression of PI3K, Akt, JNK, and p38 MAPK. However, STA (150, 200, 250, 300 mg⋅L-1) significantly decreased the levels of p-PI3K and p-Akt (P<0.05, P<0.01) and increased the level of p-p38 MAPK (P<0.05, P<0.01). Compared with the blank group, STA (200, 250, 300 mg⋅L-1) significantly raised the level of p-JNK (P<0.05, P<0.01). ConclusionSTA can inhibit the proliferation and induce the apoptosis of A549 cells by inhibiting PI3K/Akt signaling pathway and activating JNK/p38 MAPK signaling pathway.

4.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 9-17, 2023.
Article in Chinese | WPRIM | ID: wpr-953918

ABSTRACT

ObjectiveTo explore the mechanism of Buyang Huanwutang combined with bone marrow mesenchymal stem cell (BMSC) transplantation in the treatment of spinal cord injury (SCI). MethodDifferent concentrations (12.5, 25, 50 g·kg-1) of Buyang Huanwutang were administrated to rats by gavage. The spinal cord function of rats was measured by modified Tarlov score, and the most suitable concentration of Buyang Huanwutang was screened out. SD rats were then divided into 6 groups, namely, the sham operation group (gavage of equal amount of normal saline), the model group (gavage of equal amount of normal saline), the Buyang Huanwutang group (gavage of 25 g·kg-1 Buyang Huanwutang), the BMSC transplantation group (tail vein injection of BMSCs 1 mL), the Buyang Huanwutang+BMSC group (gavage of 25 g·kg-1 Buyang Huanwutang and tail vein injection of BMSCs 1 mL), the Buyang Huanwutang+BMSC+LY294002 group (gavage of 25 g·kg-1 Buyang Huanwutang and tail vein injection of BMSCs 1 mL and 40 mg·kg-1 LY294002), with 10 rats in each group. The spinal cord function was measured by the modified Tarlov score, inclined plate test, and latency of cortical somatosensory evoked potential. Immunohistochemistry was used to detect the number of 5-bromo-2-deoxyuracil nucleoside (Brdu)-labeled positive cells in the spinal cord tissue. The protein expression levels of phosphorylated protein kinase B (p-Akt), glycoprotein 130 (gp130), and interleukin-6 (IL-6) in spinal cord were detected by Western blot. ResultAs compared with the sham operation group, the Tarlov score and the critical angle of tilt plane in the model group were significantly decreased (P<0.05), and the latency of cortical somatosensory evoked potential wave and the protein expression levels of p-Akt, gp130, and IL-6 were significantly increased (P<0.05). As compared with the model group, the Tarlov score and the critical angle of tilt plane in the sham operation group and each treatment group were significantly increased (P<0.05), and the latency of cortical somatosensory evoked potential wave and the protein expression levels of p-Akt, gp130, and IL-6 were significantly decreased (P<0.05). As compared with the BMSC group, the Tarlov score and the critical angle of inclined plane in the Buyang Huanwutang+BMSC group increased (P<0.05), the latency of cortical somatosensory evoked potential wave and the protein expression levels of p-Akt, gp130, and IL-6 decreased (P<0.05), and the number of Brdu-labeled positive cells increased 5 weeks after transplantation (P<0.05). As compared with the Buyang Huanwutang+BMSC group, the Tarlov score and the critical angle of the inclined plane in the Buyang Huanwutang+BMSC+LY294002 group increased (P<0.05), and the latency of cortical somatosensory evoked potential wave and the protein expression levels of p-Akt, gp130, and IL-6 decreased significantly (P<0.05). Five weeks after transplantation, the number of Brdu-labeled positive cells increased significantly in the Buyang Huanwutang+BMSC+LY294002 group (P<0.05). ConclusionBuyang Huanwutang can promote BMSCs migration and restore spinal cord function by inhibiting phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt) signal.

5.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 156-165, 2023.
Article in Chinese | WPRIM | ID: wpr-965659

ABSTRACT

ObjectiveTo investigate the intervention effect of Qufeng Gutong Babu ointment (QFGT) on rats with osteoarthritis (OA) with cold-dampness obstruction, and preliminarily clarify its mechanism. MethodSD male rats were divided into 6 groups, namely, the blank group, model group, positive control drug Huoxue Zhitong ointment (HXZTG) group (1.26 cm2·d-1), and low, medium, and high-dose QFGT group (75, 150, 300 mg·d-1). OA model was prepared by joint cavity injection of papain and L-cysteine. On the second day of modeling, climate factors were applied to establish an animal model of combination of disease and syndrome of OA rats with cold-dampness obstruction. Standard VonFrey fiber was used to evaluate the threshold of mechanical pain. Weight bearing difference score and joint function score of both hind limbs were recorded. Hematoxylin-eosin (HE) staining and safranine fixation green staining were used to observe the pathological changes and cartilage degeneration of rat knee joint. Immunohistochemistry (IHC) was used to detect the expression of interleukin-1β (IL-1β), interleukin-8 (IL-8), tumor necrosis factor-α (TNF-α), matrix metalloproteinase-9 (MMP-9), and cathepsin K (CTSK). Western blot was used to detect the protein expression of kinase B (Akt), phosphorylated protein kinase B (p-Akt), phosphatidylinositol 3-kinase (PI3K), nuclear factor 1 (NFATc1), MMP-9, and CTSK in T cells. ResultCompared with the normal group, the model group showed significant mechanical pain sensitivity reaction after modeling (P<0.01), and the weight bearing difference of both hind limbs and joint function score were significantly increased (P<0.05, P<0.01). Compared with the model group, both the high-dose QFGT group and the HXZTG group significantly reduced the mechanical pain sensitivity, weight difference, and joint function score of rats (P<0.05, P<0.01), and the medium-dose QFGT group also improved the joint function to a certain extent, and the degeneration of the knee joint cartilage of rats was significantly reduced (P<0.05, P<0.01). QFGT and HXZTG both inhibited the protein expression of IL-1β, IL-8, TNF-α, MMP-9, CTAK, PI3K, p-Akt, Akt, and other related proteins in articular cartilage of rats with OA to a certain extent (P<0.05, P<0.01). ConclusionQFGT can inhibit the release of inflammatory factors and matrix metalloproteinases by inhibiting the PI3K/Akt signal pathway in articular articular cartilage of rats with OA with cold-dampness obstruction, thus ultimately weakening local cartilage degeneration and improving joint function.

6.
China Pharmacy ; (12): 671-677, 2023.
Article in Chinese | WPRIM | ID: wpr-965503

ABSTRACT

OBJECTIVE To investigate the effects of Wenyang jieyu decoction on phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway and neurotransmitters in rats with kidney-yang deficiency depression. METHODS The SD rats were divided into blank group, model group, fluoxetine group (positive control of western medicine, 4.17 mg/kg), Xiaoyao powder group (positive control of TCM, 1.88 g/kg) and Wenyang jieyu decoction low-dose, medium-dose and high-dose groups (1.25, 2.50, 5.00 g/kg), with 15 rats in each group. Except for blank group, the other groups were treated with corticosterone 20 mg/kg subcutaneously to induce kidney-yang deficiency depressed model, meanwhile the mice were given relevant medicine intragastrically, once a day, for 28 consecutive days. The general conditions of rats were observed. The sucrose preference rate and the static time of forced swimming were detected, and organ indexes of rats were calculated. The levels/contents of neurotransmitters in serum were detected, the expressions of PI3K/Akt pathway-related proteins in hippocampus were detected, and the number of dendritic spines was determined. RESULTS Compared with blank group, model group suffered from the symptoms such as hair loss, fear of cold, curling up; sucrose preference rate, indexes of adrenal gland, thymus gland and spleen,serum levels of cyclic adenosine phosphate (cAMP), brain-derived neurotrophic factor and gamma-aminobutyric acid, the ratio of cAMP to cyclic guanosine monophosphate, the contents of norepinephrine, dopamine and 5-hydroxy-tryptamine, the expressions of PI3K, Akt, mammalian target of rapamycin, and the number of dendritic spines in the hippocampus were significantly decreased (P<0.01). The time of immobility, level of glutamic acid and protein expression of glycogen synthetase kinase-3β were prolonged and increased (P<0.01). Compared with model group, depression symptoms of rats in each administration group were improved, and the above indexes were mostly reversed (P<0.05 or P<0.01). CONCLUSIONS Wenyang jieyu decoction can improve depression-like behavior and the deficiency of kidney-yang, regulate the secretion of neurotransmitters, and activate PI3K/Akt signaling pathway, thus playing a role in protecting hippocampal neurons.

7.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 186-194, 2023.
Article in Chinese | WPRIM | ID: wpr-964959

ABSTRACT

MethodIn the experiment, 46% vol Red Star Erguotou (10 mL·kg·d-1) was used to establish the AONFH rat model, and the intervention effect of JPHGP at different doses (2.5, 5.0, 10.0 g·kg-1) was observed. Jiangusheng pill (JGS, 1.53 g·kg-1) was selected as the positive control. After 8 weeks of administration, the bone histomorphometry of the femoral head was analyzed by Micro-CT imaging, and the area of medullary microvessels in the femoral head was detected by ink perfusion. The pathological change was observed by hematoxylin and eosin (HE) staining. The protein expressions of Platelet endothelial cell adhesion molecule-1 (CD31), VEGF, VEGFR2, PI3K, phosphor-Akt (p-Akt) and phosphatase and Tensin homologue deleted on chromosome 10 (PTEN) in the femoral head were determined by immunohistochemistry and Western blot. ResultCompared with normal group, the model group presented the fracture and thinning of trabeculae in the femoral head, increased empty bone lacunae, and elevated number and diameter of adipocytes (P<0.01). Micro-CT imaging revealed a decrease in bone mineral density (BMD), bone volume fraction (BV/TV), trabecular thickness (Tb.Th) and trabecular number (Tb.N) (P<0.05, P<0.01) while an increase in bone surface-to-volume ratio (BS/BV) and trabecular separation (Tb.Sp) (P<0.01). The results of ink perfusion showed that the area of medullary microvessels in the femoral head was reduced (P<0.01). Compared with model group, JPHGP lowered the empty bone lacunae rate as well as the number and diameter of adipocytes in the femoral head of AONFH rats. Micro-CT imaging indicated that JPHGP low-dose group had elevated BV/TV, Tb.Th and Tb.N (P<0.05, P<0.01) while decreased BS/BV (P<0.01), and there was an upward trend in BMD while a downward trend in Tb.Sp, but without statistical difference. In addition, JPHGP medium- and high-dose groups had a rise in BMD, BV/TV, Tb.Th and Tb.N (P<0.05, P<0.01), a decrease in BS/BV and Tb.Sp (P<0.05, P<0.01) and enlarged area of medullary microvessels in the femoral head (P<0.05, P<0.01). The expressions of CD31, VEGF, VEGFR2, PI3K, p-Akt in the model group were lower than those in the normal group (P<0.01), and after medium and high doses of JPHGP treatment, the expressions of CD31, PI3K and p-Akt in the femoral head of rats were up-regulated (P<0.01) while the protein expression of PTEN was down-regulated (P<0.01). Moreover, JPHGP up-regulated the expressions of VEGF and VEGFR2 (P<0.05, P<0.01). ConclusionJPHGP can repair the vascular injury in AONFH, and its mechanism may be related to the activation of VEGF/VEGFR2/PI3K/Akt signaling pathway. This study provides certain scientific basis and reference for the clinical application of JPHGP. ObjecctiveTo observe the repair effect of Jianpi Huogu prescription (JPHGP) on vascular injury in experimental alcohol-induced osteonecrosis of femoral head (AONFH), and to explore its mechanism based on vascular endothelial growth factor (VEGF)/VEGFR2/phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway.

8.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 88-94, 2023.
Article in Chinese | WPRIM | ID: wpr-961687

ABSTRACT

ObjectiveTo investigate the effect of Ganoderma lucidum polysaccharides (GLP) on the proliferation, migration, cycle, and apoptosis of hepatocellular carcinoma SK­HEP­1 and Huh­7 cells and to explore the underlying mechanism. MethodSK-HEP-1 and Huh-7 cells were classified into the blank group and low-, medium-, and high-dose GLP groups (3.5, 7, 14 g·L-1). The proliferation of the cells was examined by cell counting kit-8 (CCK­8) assay, and the migration by scratch assay. Cell cycle was measured by flow cytometry and apoptosis was detected based on Hoechst33258 staining. In addition, the expression of phosphatidylinositol 3-kinase (PI3K), protein kinase B (Akt), phosphorylated PI3K (p­PI3K), and phosphorylated Akt (p­Akt) in the cells was determined by Western blot. ResultCompared with the blank group, the three doses of GLP reduced the proliferation and migration of SK­HEP­1 and Huh­7 cells (P<0.05), increased the percentage of cells in G1 phase (P<0.05), and decreased percentage of cells in S and G2 phase (P<0.05). In addition, the three doses can induce apoptosis of both SK-HEP-1 and Huh-7 cells, particularly the high dose. Moreover, the three doses of GLP lowered the levels of p­PI3K and p­Akt (P<0.05). ConclusionGLP significantly inhibited the malignant phenotype of SK-HEP-1 and Huh-7 cells through the PI3K/Akt signaling pathway.

9.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 114-121, 2023.
Article in Chinese | WPRIM | ID: wpr-960913

ABSTRACT

ObjectiveTo explore the effects of Baihu Jia Renshen Tang (BHRS) on the related molecules on the phosphatidylinositol-3-kinase/protein kinase B(PI3K/Akt)signaling pathway in the liver of MKR diabetic model mice. MethodThirty 6-week-old MKR mice were selected and fed on a high-fat diet for four weeks,followed by intraperitoneal injection of streptozotocin(STZ)for the diabetes model establishment. The model was properly induced in the case of the fasting blood glucose (FBG) of ≥11.1 mmol·L-1. After modeling,the mice were randomly divided into a model group,a BHRS group (12.09 g·kg-1·d-1),and a metformin group (0.065 g·kg-1·d-1),with 10 mice in each group. Ten FVB mice were assigned to the control group. The mice in the groups with drug intervention were continuously administered correspondingly for 28 days. After administration,the mice were sacrificed,followed by the oral glucose tolerance test (OGTT) and FBG detection. Serum very low-density lipoprotein(VLDL)content was determined by semi-quantitative enzyme-linked immunosorbent assay (ELISA). Four indexes related to blood lipid were determined by the biochemistry analyzer. Liver tissues were subjected to pathological examination by hematoxylin-eosin(HE)staining. Western blot was used to detect the protein expression of PI3K,Akt,phosphorylated(p)-PI3K,p-Akt,forkhead box protein O1 (FoxO1),insulin receptor(InsR),and insulin receptor substrate-2(IRS-2) in liver tissues of mice. Real-time polymerase chain reaction(Real-time PCR) was used to detect the mRNA expression of PI3K,Akt,FoxO1,InsR,and IRS-2 in liver tissues of mice. ResultCompared with the control group,the model group showed poor general conditions,abnormal glucose tolerance (P<0.05),increased FBG (P<0.01),abnormal blood lipid metabolism,increased serum total cholesterol (TC),triglyceride(TG),low-density lipoprotein cholesterol(LDL-C),and VLDL (P<0.05),decreased level of high-density lipoprotein cholesterol(HDL-C)(P<0.05),fatty degeneration and obvious pathological changes of liver cells,reduced protein expression of PI3K,Akt,p-PI3K/PI3K,p-Akt/Akt,IRS-2,and InsR in liver tissues(P<0.05),increased protein expression of FoxO1(P<0.05),decreased mRNA expression of PI3K,Akt,IRS-2,and InsR in liver tissues (P<0.05),and increased FoxO1 mRNA expression(P<0.05). Compared with the model group,the BHRS group showed improved general conditions and glucose and lipid metabolism (P<0.05),improved pathological state of liver cells,increased protein expression of PI3K,Akt,p-PI3K/PI3K,p-Akt/Akt,IRS-2,and InsR in liver tissues(P<0.05),decreased protein expression of FoxO1(P<0.05),increased mRNA expression of PI3K,Akt,IRS-2,and InsR in liver tissues (P<0.05),and reduced FoxO1 mRNA expression(P<0.05). ConclusionBHRS can effectively reduce blood glucose,regulate blood lipid metabolism,and improve the pathological state of the liver in MKR diabetic mice,and its mechanism of action may be related to the regulation of the activity of molecules on the PI3K/Akt signaling pathway.

10.
China Journal of Chinese Materia Medica ; (24): 2203-2211, 2023.
Article in Chinese | WPRIM | ID: wpr-981351

ABSTRACT

This study aims to investigate the therapeutic effect of alcohol extract of root and root bark of Toddalia asiatica(TAAE) on collagen-induced arthritis(CIA) in rats through phosphatidylinoinosidine-3 kinase/protein kinase B(PI3K/Akt) signaling pathway. To be specific, CIA was induced in rats, and then the rats were treated(oral, daily) with TAAE and Tripterygium Glycoside Tablets(TGT), respectively. The swelling degree of the hind leg joints was scored weekly. After 35 days of administration, the histopathological changes were observed based on hematoxylin and eosin(HE) staining. Enzyme-linked immunosorbent assay(ELISA) was employed to detect the levels of cytokines [tumor necrosis factor-α(TNF-α), interleukin(IL)-6)]. Terminal deoxynucleotidyl transferase dUTP nick end labeling(TUNEL) staining was performed to detect the apoptosis of synoviocytes in rats. Western blot was used to detect the expression levels of apoptosis-related proteins B-cell lymphoma 2(Bcl-2)-associated X(Bax), Bcl-2, and caspase-3 and pathway-related proteins phosphoinositide 3-kinase(PI3K), phosphorylated(p)-PI3K, protein kinase B(Akt), and p-Akt. RT-qPCR was conducted to examine the mRNA levels of Bax, Bcl-2, caspase-3, TNF-α, IL-6, and IL-1β and pathway-related proteins PI3K, p-PI3K, Akt, and p-Akt. TAAE can alleviate the joint swelling in CIA rats, reduce serum levels of inflammatory cytokines, improve synovial histopathological changes, promote apoptosis of synoviocytes, and inhibit synovial inflammation. In addition, RT-qPCR and Western blot results showed that TAAE up-regulated the level of Bax, down-regulated the level of Bcl-2, and activated caspase-3 to promote apoptosis in synoviocytes. TAAE effectively down-regulated the protein levels of p-PI3K and p-Akt. In this study, TAAE shows therapeutic effect on CIA in rats and reduces the inflammation. The mechanism is that it suppresses PI3K/Akt signaling pathway and promotes synoviocyte apoptosis. Overall, this study provides a new clue for the research on the anti-inflammatory mechanism of TAAE and lays a theoretical basis for the better clinical application of TAAE in the treatment of inflammatory and autoimmune diseases.


Subject(s)
Rats , Animals , Proto-Oncogene Proteins c-akt/metabolism , Phosphatidylinositol 3-Kinases/metabolism , Caspase 3/genetics , Tumor Necrosis Factor-alpha/metabolism , bcl-2-Associated X Protein/metabolism , Plant Bark , Anti-Inflammatory Agents/therapeutic use , Arthritis, Experimental/chemically induced , Inflammation/drug therapy , Cytokines/metabolism , Proto-Oncogene Proteins c-bcl-2 , Apoptosis
11.
China Journal of Chinese Materia Medica ; (24): 2334-2342, 2023.
Article in Chinese | WPRIM | ID: wpr-981309

ABSTRACT

We investigated the effects of decursin on the proliferation, apoptosis, and migration of colorectal cancer HT29 and HCT116 cells through the phosphatidylinositol 3-kinase(PI3K)/serine-threonine kinase(Akt) pathway. Decursin(10, 30, 60, and 90 μmol·L~(-1)) was used to treat HT29 and HCT116 cells. The survival, colony formation ability, proliferation, apoptosis, wound hea-ling area, and migration of the HT29 and HCT116 cells exposed to decursin were examined by cell counting kit-8(CCK8), cloning formation experiments, Ki67 immunofluorescence staining, flow cytometry, wound healing assay, and Transwell assay, respectively. Western blot was employed to determine the expression levels of epithelial cadherin(E-cadherin), neural cadherin(N-cadherin), vimentin, B-cell lymphoma/leukemia-2(Bcl-2), Bcl-2-associated X protein(Bax), tumor suppressor protein p53, PI3K, and Akt. Compared with the control group, decursin significantly inhibited the proliferation and colony number and promoted the apoptosis of HT29 and HCT116 cells, and it significantly down-regulated the expression of Bcl-2 and up-regulated the expression of Bax. Decursin inhibited the wound healing and migration of the cells, significantly down-regulated the expression of N-cadherin and vimentin, and up-regulated the expression of E-cadherin. In addition, it significantly down-regulated the expression of PI3K and Akt and up-regulated that of p53. In summary, decursin may regulate epithelial-mesenchymal transition(EMT) via the PI3K/Akt signaling pathway, thereby affecting the proliferation, apoptosis, and migration of colorectal cancer cells.


Subject(s)
Humans , Proto-Oncogene Proteins c-akt/metabolism , Phosphatidylinositol 3-Kinases/metabolism , bcl-2-Associated X Protein , Vimentin/metabolism , Cell Proliferation , Signal Transduction , Apoptosis , Cell Line, Tumor , Colorectal Neoplasms/genetics , Cadherins/genetics , Cell Movement
12.
China Journal of Chinese Materia Medica ; (24): 3855-3864, 2023.
Article in Chinese | WPRIM | ID: wpr-981518

ABSTRACT

This paper aims to investigate the intervention effect of Qufeng Gutong Cataplasm(QFGT) on myofascial pain syndrome(MPS) in rats and to preliminarily explain its mechanism from the perspective of improving muscle inflammation and pain. Male SD rats were divided into 6 groups, namely normal group, model group, positive control drug(Huoxue Zhitong Ointment, HXZT) group, and low, medium, and high-dose QFGT groups(75, 150, and 300 mg·d~(-1)). The rat model of MPS was established by striking combined with centrifugation for 8 weeks, during which QFGT and HXZT were used for corresponding intervention. Standard VonFrey fiber was used to evaluate the mechanical pain threshold, and acetone was used to detect the cold pain threshold. The electrophysiological activity of muscle at trigger point was detected, and the electromuscular analysis of trigger point was performed. CatWalk gait analyzer was used to detect pain-induced gait adaptation changes. The hematoxylin-eosin(HE) staining was used to observe the pathological changes in muscle and skin tissues at the trigger point of rats. Immunohistochemistry was used to detect the expression of capsaicin receptor transient receptor potential vanilloid 1(TRPV1) in muscle tissues and interleukin(IL)-33 in skin tissues at the trigger point. The protein expression levels of TRPV1, protein kinase B(Akt), phosphorylated protein kinase B(p-Akt), IL-1β, and tumor necrosis factor-α(TNF-α) in muscle tissues at the trigger point were detected by Western blot. The results showed that as compared with the model group, the mechanical pain threshold and cold pain threshold of rats in other groups were increased after treatment with QFGT. The spontaneous electromyography(EMG) activity was observed in the model group, but QFGT alleviated the EMG activity in a dose-dependent manner. Gait analysis showed that standing duration, average intensity, swing speed, maximum contact point, maximum contact area, paw print length, paw print width, and paw print area were significantly improved in all QFGT groups. Pathological results showed that the disorder of muscle arrangement at the trigger point was decreased, muscle fiber adhesion and atrophy were reduced, and inflammatory cell infiltration was alleviated after treatment with QFGT. In addition, QFGT and HXZT both inhibited the protein expression of TRPV1, PI3K, Akt, p-Akt, IL-1β, and TNF-α in the muscle tissues of rats with MPS. However, there was no significant difference in the pathological structure and expression of IL-33 in the treated skin as compared with the normal group. The related results have proved that QFGT can inhibit the release of inflammatory factors by inhibiting the TRPV1/PI3K/Akt signaling pathway in the muscle trigger point of rats with MPS and finally attenuate the atrophy and adhesion of local muscles and inflammatory infiltration, thereby relieving the muscle pain of rats with MPS, and local administration has no skin irritation.


Subject(s)
Rats , Male , Animals , Proto-Oncogene Proteins c-akt , Rats, Sprague-Dawley , Tumor Necrosis Factor-alpha , Phosphatidylinositol 3-Kinases , Myofascial Pain Syndromes/drug therapy , Pain
13.
Chinese journal of integrative medicine ; (12): 244-252, 2023.
Article in English | WPRIM | ID: wpr-971329

ABSTRACT

OBJECTIVE@#To investigate the mechanism of the effect of Astragalus membranaceus (A. membranaceus) on lung adenocarcinoma at the molecular level to elucidate the specific targets according to the network pharmacology approach.@*METHODS@#The active components of A. membranaceus and their potential targets were collected from the Traditional Chinese Medicine Systems Pharmacology Database. Lung adenocarcinoma-associated genes were acquired based on GeneCards, Online Mendelian Inheritance in Man (OMIM), PharmGKB, and Therapeutic Targets databases. The PI3K/AKT signaling pathway-related genes were obtained using Reactome portal. Networks of "ingredient-target" and "ingredient-target-pathway-disease" were constructed using the Cytoscape3.6.0 software. The relationships among targets were analyzed according protein-protein interaction (PPI) network. Finally, molecular docking was applied to construct the binding conformation between active ingredients and core targets. Cell counting kit 8 (CCK8) and Western blot assays were performed to determine the mechanism of the key ingredient of A. membranaceus.@*RESULTS@#A total of 20 active components and their 329 targets, and 7,501 lung adenocarcinoma-related genes and 130 PI3K/AKT signaling pathway-related genes were obtained. According to Venn diagram and PPI network analysis, 2 mainly active ingredients, including kaempferol and quercetin, and 6 core targets, including TP53, MAPK1, EGF, AKT1, ERBB2, and EGFR, were identified. The two important active ingredients of A. membranaceus, kaempferol and quercetin, exert the therapeutic effect in lung adenocarcinoma partly by acting on the 6 core targets (TP53, MAPK1, EGF, AKT1, ERBB2, and EGFR) of PI3K/AKT signaling pathway. Expressions of potential targets in lung adenocarcinoma and normal samples were analyzed by using UALCAN portal and found that ERBB2 was overexpressed in lung adenocarcinoma tissues and upregulation of it correlated with clinicopathological characteristics. Finally, quercetin repressed viabilities of lung adenocarcinoma cells by targeting ERBB2 on PI3K/AKT signaling confirmed by CCK8 and Western blot.@*CONCLUSION@#Our finding unraveled that an active ingredient of A. membranaceus, quercetin, significantly inhibited the lung adenocarcinoma cells proliferation by repressing ERBB2 level and inactivating the PI3K/AKT signaling pathway.


Subject(s)
Humans , Astragalus propinquus , Kaempferols , Network Pharmacology , Phosphatidylinositol 3-Kinases , Proto-Oncogene Proteins c-akt , Epidermal Growth Factor , Molecular Docking Simulation , Quercetin , Adenocarcinoma of Lung , Lung Neoplasms , Signal Transduction , ErbB Receptors , Drugs, Chinese Herbal
14.
China Journal of Chinese Materia Medica ; (24): 1620-1631, 2023.
Article in Chinese | WPRIM | ID: wpr-970634

ABSTRACT

The study identified the blood-entering components of Sijunzi Decoction after gavage administration in rats by UPLC-Q-TOF-MS/MS, and investigated the mechanism of Sijunzi Decoction in treating Alzheimer's disease by virtue of network pharmacology, molecular docking, and experimental verification. The blood-entering components of Sijunzi Decoction were identified based on the mass spectra and data from literature and databases. The potential targets of the above-mentioned blood-entering components in the treatment of Alzheimer's disease were searched against PharmMapper, OMIM, DisGeNET, GeneCards, and TTD. Next, STRING was employed to establish a protein-protein interaction(PPI) network. DAVID was used to perform the Gene Ontology(GO) annotation and the Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway enrichment. Cytoscape 3.9.0 was used to carry out visual analysis. AutoDock Vina and PyMOL were used for molecular docking of the blood-entering components with the potential targets. Finally, the phosphatidylinositol 3-kinase(PI3K)/protein kinase B(Akt) signaling pathway enriched by the KEGG analysis was selected for validation by animal experiments. The results showed that 17 blood-entering components were detected in the serum samples after administration. Among them, poricoic acid B, liquiritigenin, atractylenolide Ⅱ, atractylenolide Ⅲ, ginsenoside Rb_1, and glycyrrhizic acid were the key components of Sijunzi Decoction in treating Alzheimer's disease. HSP90AA1, PPARA, SRC, AR, and ESR1 were the main targets for Sijunzi Decoction to treat Alzheimer's disease. Molecular docking showed that the components bound well with the targets. Therefore, we hypothesized that the mechanism of Sijunzi Decoction in treating Alzheimer's disease may be associated with the PI3K/Akt, cancer treatment, and mitogen-activated protein kinase(MAPK) signaling pathways. The results of animal experiments showed that Sijunzi Decoction significantly attenuated the neuronal damage in the hippocampal dentate gyrus area, increased the neurons, and raised the ratios of p-Akt/Akt and p-PI3K/PI3K in the hippocampus of mice. In conclusion, Sijunzi Decoction may treat Alzheimer's disease by activating the PI3K/Akt signaling pathway. The findings of this study provide a reference for further studies about the mechanism of action and clinical application of Sijunzi Decoction.


Subject(s)
Animals , Mice , Rats , Proto-Oncogene Proteins c-akt , Network Pharmacology , Alzheimer Disease/drug therapy , Molecular Docking Simulation , Phosphatidylinositol 3-Kinases/genetics , Tandem Mass Spectrometry , Drugs, Chinese Herbal/pharmacology
15.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 1-11, 2023.
Article in Chinese | WPRIM | ID: wpr-978445

ABSTRACT

ObjectiveTo explore the effect and mechanism of Zuojinwan (ZJW) in the treatment of ulcerative colitis (UC) through network pharmacology and experimental validation. MethodUsing network pharmacology and molecular docking, the active components and potential mechanism of ZJW in treating UC were preliminarily identified. Forty-eight male C57BL/6J mice were randomly divided into a normal group, a model group, a sulfasalazine group (300 mg·kg-1), and low-, medium-, and high-dose ZJW groups (1.82, 3.64, 7.28 g·kg-1). The UC model was induced by dextran sulfate sodium (DSS), and oral administration of drugs began on the third day of modeling, lasting for 7 days. The general condition of mice was observed daily, and the disease activity index (DAI) was evaluated. Hematoxylin-eosin (HE) staining was performed to observe histopathological changes in colon tissue. Enzyme-linked immunosorbent assay (ELISA) was used to measure the levels of tumor necrosis factor (TNF)-α, interleukin (IL)-6, and IL-10 in mouse serum. The molecular mechanism was validated using Western blot. ResultNetwork pharmacology predicted that the phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway might be a key pathway in the regulation of UC by ZJW. Molecular docking results showed good binding ability between the key components of ZJW and core targets. Animal experiment results showed that compared with the normal group, the model group had shortened colon length (P<0.01), increased DAI scores, spleen index, colon tissue pathology scores, and levels of TNF-α and IL-6 in serum (P<0.05, P<0.01), increased PI3K, phosphorylated Akt (p-Akt), and B-cell lymphoma-2 (Bcl-2)-associated X protein (Bax) expression in colon tissue (P<0.05, P<0.01), and decreased serum IL-10 levels and colon tissue Bcl-2 protein expression (P<0.01). Compared with the model group, the ZJW groups showed significant improvement in UC symptoms, relieved colon tissue pathological damage, downregulated levels of inflammatory cytokines TNF-α and IL-6 in serum (P<0.01), inhibited expression of PI3K, p-Akt, and Bax proteins in colon tissue (P<0.05, P<0.01), and increased serum IL-10 levels and colon tissue Bcl-2 protein expression (P<0.01), with the high-dose group showing the best effect. ConclusionZJW effectively alleviates DSS-induced UC, and its mechanism may be related to the inhibition of the PI3K/Akt signaling pathway and regulation of apoptosis-related protein expression.

16.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 203-212, 2023.
Article in Chinese | WPRIM | ID: wpr-973763

ABSTRACT

Diabetic peripheral neuropathy (DPN) is characterized by insidious onset, easy misdiagnosis, and progression to severe consequences such as diabetic foot ulcers, gangrene, and amputation. The main pathological features of DPN are nerve cell injuries, such as axonal degeneration and necrosis, segmental demyelination of nerve fibers, and apoptosis of Schwann cells. The phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway is a classical pathway that communicates intracellular and extracellular information and regulates biological activities such as cell proliferation, differentiation, apoptosis, autophagy, and migration. It widely affects various cells related to DPN. In recent years, numerous studies have found that the sustained high glucose environment causes abnormalities in the PI3K/Akt signaling pathway. This, in turn, accelerates the occurrence and development of DPN by participating in the pathogenesis of DPN, such as glucose and lipid metabolism, oxidative stress, inflammation, autophagy, apoptosis, and angiogenesis. Therefore, regulating the PI3K/Akt signaling pathway is crucial for the treatment of DPN. Currently, there is a lack of effective measures to slow down or reverse DPN in clinical practice. Traditional Chinese medicine (TCM) has unique advantages in preventing and treating DPN with multiple targets, effects, and components. A large number of animal and clinical studies of TCM treatment of DPN have shown that the PI3K/Akt signaling pathway is an important target for TCM treatment of DPN. Regulating the PI3K/Akt signaling pathway can promote myelin sheath repair and regeneration, delay the process of nerve cell death, and play a role in preventing and treating DPN. However, there is currently no systematic review and summary of this field in China and abroad. Therefore, this article summarized the regulation of the PI3K/Akt signaling pathway and its role in the pathogenesis of DPN, as well as the intervention of effective components of single Chinese medicine or compounds on the PI3K/Akt signaling pathway. This study is expected to provide a reference for the clinical diagnosis and treatment of DPN with TCM, basic research, and drug development.

17.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 88-95, 2023.
Article in Chinese | WPRIM | ID: wpr-973749

ABSTRACT

ObjectiveTo evaluate the clinical efficacy and safety of Notoginseng Radix et Rhizoma powder in treating dyslipidemia by regulating the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway. MethodSixty patients with dyslipidemia (syndrome of combined phlegm and stasis) treated in the Third Affiliated Hospital of Henan University of Chinese Medicine from May 2021 to June 2022 were selected in this study and randomized into two groups according to the randomized, double-blind control principle. The control group was treated with Xuezhikang capsules + Notoginseng Radix et Rhizoma powder placebo and the observation group with Notoginseng Radix et Rhizoma powder + Xuezhikang capsules placebo for 6 weeks. The clinical efficacy, traditional Chinese Medicine (TCM) syndrome scores, and liver and kidney function indicators were evaluated at weeks 0, 3, and 6. Enzyme-linked immunosorbent assay (ELISA) was employed to determine the expression of vascular endothelial growth factor (VEGF), kinase insert domain receptor (KDR), epidermal growth factor (EGF), and epidermal growth factor receptor (EGFR) in the peripheral serum. Quantitative Real-time PCR was employed to measure the mRNA levels of KDR, EGFR, PI3K, and Akt in the mononuclear cells of the peripheral blood. ResultThe observation group (83.33%) showed the total effective rate comparable to that of the control group (89.66%) and no adverse reactions. Compared with before treatment, the patients in the observation group showed decreased TCM syndrome score and serum levels total cholesterol (TC), triglyceride (TG), and low-density lipoprotein cholesterol (LDL-C) and after being treated for 3 and 6 weeks (P<0.05), the level of high-density lipoprotein cholesterol (HDL-C) showed an upward trend, but the difference was not statistically significant. After treatment, the two groups showed no significant differences. Compared with that before treatment, the mRNA expression of PI3K, Akt and EGFR in peripheral blood mononuclear cell and the expression of EGF, VEGF and KDR in serum of the observation group showed a downward trend with time, in which the mRNA expression of PI3K, Akt, VEGF and KDR decreased more significantly (P<0.05),The expression levels of KDR mRNA and serum EGFR show a trend of first increasing and then decreasing.Compared with the control group after treatment, there was no statistically significant difference in mRNA expression of PI3K, Akt, EGFR, and KDR, as well as serum levels of EGF, EGFR, VEGF, and KDR between the two groups of patients at the same time point. ConclusionNotoginseng Radix et Rhizoma powder is safe and effective in correcting dyslipidemia. It may inhibit the PI3K/Akt signaling pathway by down-regulating the expression of VEGF/KDR to lower the blood lipid level.

18.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 265-273, 2023.
Article in Chinese | WPRIM | ID: wpr-973157

ABSTRACT

Diabetes retinopathy (DR) is an important cause that threatens the visual health of adults. There are some treatment methods of western medicine with definite efficacy, such as anti-vascular endothelial growth factor and laser photocoagulation, but they have many adverse reactions such as intraocular infection and visual field damage. Traditional Chinese medicine (TCM) therapies are safe and effective, which can complement western medicine. Phosphatidylinositol3-kinase (PI3K)/protein kinase B (Akt) signaling pathway regulates a range of processes including glucose metabolism, cell proliferation, and cell transcription and apoptosis, which is closely related to the occurrence and development of DR. Numerous studies have shown that TCM monomers can participate in maintaining the integrity of blood-retinal barrier and inhibiting retinal neovascularization and neurodegeneration in many aspects such as inhibiting oxidative stress and alleviating inflammatory reaction by regulating the PI3K/Akt pathway, so as to delay the progress of DR. Therefore, this study reviewed PI3K/Akt pathway and its relationship with DR, as well as the TCM monomers in interfering with DR based on PI3K/Akt pathway to provide some ideas for the prevention and treatment of DR in integrated TCM and western medicine.

19.
Acta Pharmaceutica Sinica ; (12): 2677-2684, 2023.
Article in Chinese | WPRIM | ID: wpr-999006

ABSTRACT

Chikusetsusaponin IVa (CsIVa) is a natural active monomer of triterpene saponins in the Chinese herbal medicine of Panax japonicus, which has anti-inflammatory, anti-tumor and other effects. However, its function and mechanism in triple negative breast cancer (TNBC) remain unclear. This study investigated the inhibitory effect and mechanisms of CsIVa on the proliferation of triple negative breast cancer cell line MDA-MB-231. In this study, we found that CsIVa could significantly inhibit the proliferation of MDA-MB-231 cells and eliminate its potential toxic effect on normal breast cells (MCF-10A). The transcriptome sequencing results showed that the inhibition of proliferation of MDA-MB-231 cells by CsIVa was closely related to cell cycle and the pathway regulating cell cycle. Further studies confirmed that CsIVa blocked the cell cycle in G2/M phase by down-regulating the expression of cyclin dependent kinase 1 (CDK1), cyclin B1 and up-regulating the expression of cyclin dependent kinase inhibitor 1A (p21). Moreover, CsIVa can block cell cycle through inhibiting PI3K/AKT signal pathway. In conclusion, CsIVa regulates the expression of cell cycle related proteins (p21, CDK1, cyclin B1) via inhibiting the activity of PI3K/AKT signaling pathway, blocks TNBC cell cycle, and thus exerts its anti-tumor activity.

20.
Cancer Research on Prevention and Treatment ; (12): 955-959, 2023.
Article in Chinese | WPRIM | ID: wpr-997686

ABSTRACT

Objective To explore the effects and mechanism of LASP1 gene expression on the proliferation, migration, and invasion of human colorectal cancer (LOVO) cells. Methods LASP1 overexpression plasmids and LASP1 interference plasmids were constructed and transfected to LOVO cells. qRT-PCR was used to detect LASP1 mRNA expression and validate the transfection. MTT method and Tunel staining were used to detect cell proliferation and apoptosis, respectively, and scratch test and Transwell test were employed to determine the migration and invasion abilities of cells. Western blot was applied to analyze the expression of LASP1, p-FAK/FAK, and p-AKT/AKT protein in cells. Results The plasmids were successfully transfected. LASP1 overexpression increased the proliferation, migration, and invasion of LOVO cells, decreased the apoptosis, and increased LASP1, p-FAK/FAK, p-AKT/AKT protein expression (P < 0.01). LASP1 knockdown reduced the proliferation, migration, and invasion of LOVO cells, increased the apoptosis, and decreased LASP1, p-FAK/FAK, and p-AKT/AKT protein expression (P < 0.01). Conclusion LASP1 positively regulates the FAK/AKT signaling pathway to promote the proliferation, migration, and invasion of LOVO cells.

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