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1.
Chinese journal of integrative medicine ; (12): 230-242, 2024.
Article in English | WPRIM | ID: wpr-1010324

ABSTRACT

OBJECTIVE@#To examine the therapeutic effect of Fangji Fuling Decoction (FFD) on sepsis through network pharmacological analysis combined with in vitro and in vivo experiments.@*METHODS@#A sepsis mouse model was constructed through intraperitoneal injection of 20 mg/kg lipopolysaccharide (LPS). RAW264.7 cells were stimulated by 250 ng/mL LPS to establish an in vitro cell model. Network pharmacology analysis identified the key molecular pathway associated with FFD in sepsis. Through ectopic expression and depletion experiments, the effect of FFD on multiple organ damage in septic mice, as well as on cell proliferation and apoptosis in relation to the mitogen-activated protein kinase 14/Forkhead Box O 3A (MAPK14/FOXO3A) signaling pathway, was analyzed.@*RESULTS@#FFD reduced organ damage and inflammation in LPS-induced septic mice and suppressed LPS-induced macrophage apoptosis and inflammation in vitro (P<0.05). Network pharmacology analysis showed that FFD could regulate the MAPK14/FOXO signaling pathway during sepsis. As confirmed by in vitro cell experiments, FFD inhibited the MAPK14 signaling pathway or FOXO3A expression to relieve LPS-induced macrophage apoptosis and inflammation (P<0.05). Furthermore, FFD inhibited the MAPK14/FOXO3A signaling pathway to inhibit LPS-induced macrophage apoptosis in the lung tissue of septic mice (P<0.05).@*CONCLUSION@#FFD could ameliorate the LPS-induced inflammatory response in septic mice by inhibiting the MAPK14/FOXO3A signaling pathway.


Subject(s)
Mice , Animals , Mitogen-Activated Protein Kinase 14/metabolism , Wolfiporia , Lipopolysaccharides/pharmacology , Sepsis/complications , Signal Transduction , Inflammation/drug therapy , Oxygen Radioisotopes
2.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 20-28, 2024.
Article in Chinese | WPRIM | ID: wpr-1016458

ABSTRACT

ObjectiveTo study the effects of Epimedii Folium polysaccharides on mice with exercise-induced fatigue and explore its possible mechanism of action. MethodICR male mice screened by swimming training were randomly divided into a control group, model group, vitamin C group, and low, medium, and high dose groups of Epimedii Folium polysaccharides, with eight mice in each group. The exercise-induced fatigue model was established by weight-bearing swimming training in each group except for the control group. After two weeks of weight-bearing swimming, the Epimedii Folium polysaccharide groups were given 100, 200, 400 mg∙kg-1 of Epimedii Folium polysaccharides by gavage, and the vitamin C group was given 200 mg∙kg-1 of vitamin C by gavage. The control group and the model group were given equal amounts of saline for 14 d. At the end of the experimental period, the body mass of the mice in each group and the time of last swimming due to exhaustion were recorded. Serum urea nitrogen (BUN), lactic acid (LA), lactate dehydrogenase (LDH), malondialdehyde (MDA), superoxide dismutase (SOD), glutathione peroxidation (GSH-Px), myoglycogen (MG) in skeletal muscle, hepatic glycogen (HG) in the liver were detected by kits. Hematoxylin-eosin (HE) staining was used to observe the pathological changes in muscle tissue. Western blot was used to detect the protein expression of p38 mitogen-activated protein kinase (p38 MAPK), phosphorylation (p)-p38 MAPK, extracellular signal-regulated kinase1/2 (ERK1/2), nuclear factor-κB (NF-κB), p-NF-κB, interleukin-1β (IL-1β), and interleukin-6 (IL-6) in muscle tissue. The immunofluorescence (IF) method was used to detect the expression of tumor necrosis factor-α (TNF-α) in skeletal muscle tissue of mice in each group. ResultCompared with the control group, the body mass of mice in the model group decreased, and the time of last swimming due to exhaustion decreased (P<0.01). In addition, there were significantly higher serum levels of the fatigue metabolites LA, LDH, BUN, and lipid peroxidation product MDA (P<0.01) and decreased levels of MG, HG, SOD, and GSH-Px (P<0.01). The protein expressions of p-p38 MAPK, ERK1/2, p-NF-κB, IL-1β, IL-6, and TNF-α in skeletal muscle tissue were significantly higher than those of the control group (P<0.01). Compared with the model group, the body mass and time of last swimming due to exhaustion of the mice in the low, medium, and high dose groups of Epimedii Folium polysaccharides and the vitamin C group were increased (P<0.05, P<0.01), and the contents of LA, LDH, BUN, and MDA were significantly decreased (P<0.05, P<0.01). The levels of MG, HG, SOD, and GSH-Px increased (P<0.05, P<0.01), and the protein expression levels of p-p38 MAPK, ERK, p-NF-κB, IL-1β, IL-6, and TNF-α in skeletal muscle tissue decreased (P<0.05, P<0.01). ConclusionEpimedii Folium polysaccharides can play a role in alleviating exercise-induced fatigue by inhibiting the p38 MARK/NF-κB signaling pathway, thereby reducing the accumulation of metabolites, improving the activity of antioxidant enzymes, increasing the glycogen content of the body, and reducing inflammation in skeletal muscle.

3.
Journal of Environmental and Occupational Medicine ; (12): 267-275, 2024.
Article in Chinese | WPRIM | ID: wpr-1013433

ABSTRACT

Background Permethrin is a commonly used pyrethroid insecticide and has been found to be potentially neurotoxic. Microglia are innate immune cells in the central nervous system and are involved in the development of a range of neurodegenerative diseases. Objective To observe possible toxic effects of permethrin on human microglia clone 3 (HMC3) in vitro and explore associated mechanism. Methods HMC3 were treated with 0, 10, 25, and 55 μmol·L−1 permethrin for 72 h. Cell cycle and apoptosis were measured using flow cytometry. Cyclin-dependent kinase 1 (CDK1), cyclin-dependent kinase inhibitor 1A (CDKN1A), cyclin B2 (CCNB2), cellular tumor antigen p53 (p53), factor-related apoptosis (FAS), caspase 3 (CASP3), and H2A histone family member X (H2AX) were detected by quantitative real-time PCR (qPCR). The differential genes and enrichment pathways of HMC3 after 0 and 25 μmol·L−1 permethrin treatment was analyzed by RNA sequencing. HMC3 was treated by 0, 10, 25, and 55 μmol· L−1 permethrin for 72 h. The content of nitric oxide (NO) in the supernatant was detected using Griess reagent. The secretion level of interleukin-6 (IL-6) was detected by enzyme linked immunosorbent assay (ELISA). The mRNA expression levels of mitogen-activated protein kinase (MAPK) pathway (including MAPK1, MAPK8, and MAPK14), interleukin-1β (IL-1β), IL-6, and matrix metalloproteinase (MMP) families (including MMP1, MMP2, MMP3, and MMP9) were detected by qPCR. The protein expressions of phosphorylated p38 mitogen-activated protein kinase (p-p38), phosphorylated extracellular signal-regulated kinase (p-ERK), IL-1β, IL-6, and MMP1 were detected by Western blot. Results HMC3 was arrested in G2/M phase after 0, 10, 25, and 55 μmol·L−1 permethrin treatment for 72 h, of which there was a statistically significant difference between the 55 μmol·L−1 permethrin treatment group and the control group (P<0.01), and the mRNA expression of CDKN1A was up-regulated according to the qPCR (P<0.05). There was no statistically significant difference in the proportions of apoptosis between the groups (P>0.05). The RNA sequencing showed that the differential genes were enriched in the MAPK pathway, and the mRNA expressions of MAPK1, MAPK8, and MAPK14 were up-regulated after the permethrin treatment at 55 μmol·L−1 compared to the control group by qPCR (P<0.05). The Western blot revealed that, compared to the control group, the levels of p-p38 and p-ERK were increased after the 10 μmol·L−1 permetrin treatment (P<0.05), the p-ERK level was increased after the 25 μmol·L−1 permetrin treatment (P<0.05), and the p-p38 level was up-regulated after the 55 μmol·L−1 permetrin treatment (P<0.05). The secretion of NO in the supernatant of HMC3 increased after permetrin treatment compared to the control group (P<0.05), the mRNA and protein expressions and the secretion of IL-6 showed an upward trend, the mRNA and protein expressions of IL-1β were up-regulated (P<0.05), and the mRNA and protein expressions of MMP1 were up-regulated in the 25 and 55 μmol·L−1 permethrin groups (P<0.05). Conclusion Permethrin inhibits HMC3 cell proliferation in vitro, induces cell cycle arrest, activates MAPK pathway, and promotes the expression of inflammatory factors IL-1β and MMP1, which may be one of the mechanism of neurotoxicity induced by permethrin.

4.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 254-262, 2024.
Article in Chinese | WPRIM | ID: wpr-1013363

ABSTRACT

With a global rise in morbidity rates, obesity has become a pressing public health issue. With increased adipocyte number and volume as the main characteristics, obesity is also manifested by metabolic disorders to varying degrees. At the same time, obesity is a risk factor for diabetes, hypertension, stroke, cancer, and cardiovascular diseases, imposing burdens on society and families. Influenced by lifestyle, environment, behavior, and genetics, obesity is caused by the interaction of many factors, and its pathological process is complex, involving inflammation, autophagy, and intestinal dysbiosis. The mitogen-activated protein kinase (MAPK) cascade reaction, a pivotal signaling pathway, plays a crucial role in cellular processes such as proliferation, differentiation, apoptosis, and stress responses. Both Chinese and international studies indicate that the MAPK signaling pathway can effectively regulate obesity through various pathways, including the modulation of adipocyte differentiation and apoptosis, appetite control, and inflammation improvement. Moreover, traditional Chinese medicine (TCM) has demonstrated significant efficacy in preventing and treating obesity, leveraging advantages such as multiple targets, diverse components, and minimal adverse effects. Research indicates that the MAPK signaling pathway is a primary focus of TCM regulation in this context, although a systematic review in this field is currently lacking. Therefore, this paper, by reviewing the latest Chinese and international research, provided a concise overview of the basic structure of the MAPK pathway, with a specific emphasis on recent progress in TCM interventions targeting the MAPK pathway for obesity treatment. The results indicate that regulating adipose tissue formation, differentiation, and thermogenesis, reducing inflammation and oxidative stress levels, and improving insulin sensitivity and metabolic disorders seem to be the main ways for TCM to regulate the MAPK pathway to prevent and treat obesity. However, it is necessary to find more research methods and explore potential mechanisms underlying TCM formulations based on the MAPK pathway for obesity prevention and treatment.

5.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 233-244, 2024.
Article in Chinese | WPRIM | ID: wpr-1012713

ABSTRACT

Ulcerative colitis (UC) is a chronic inflammatory bowel disease primarily affecting the colon and rectum, with the typical symptoms such as abdominal pain, bloody diarrhea, and tenesmus. The pathogenesis of UC remains to be fully elucidated. The disease is prone to recurrence, seriously affecting the patients' quality of life. Conventional therapies for UC have limitations, including unsatisfactory clinical efficacy, lengthy courses, and adverse reactions. Therefore, there is an urgent need to explore new therapeutic agents. Peroxisome proliferator-activated receptor gamma (PPARγ), a ligand-dependent nuclear receptor protein that plays a crucial role in maintaining intestinal homeostasis, is closely associated with the onset and development of UC. Traditional Chinese medicine (TCM) has advantages such as multi-targeting and mild side effects in the treatment of UC. Recent studies have shown that TCM can exert the therapeutic effects on UC by modulating PPARγ. The TCM methods for regulating PPARγ include clearing heat, drying dampness, moving Qi, activating blood, resolving stasis, invigorating the spleen, warming the kidney, and treating with both tonification and elimination. On one hand, TCM directly activates PPARγ or mediates signaling pathways such as nuclear factor-κB (NF-κB), mitogen-activated protein kinase (MAPK), Toll-like receptor 4 (TLR4), and regulates helper T cell 17 (Th17)/regulatory T cell (Treg) balance to promote macrophage polarization from the pro-inflammatory M1 phenotype to the anti-inflammatory M2 phenotype, thereby inhibiting intestinal inflammation. On the other hand, TCM regulates the intestinal metabolism to activate PPARγ, lower the nitrate level, and maintain local hypoxia. In this way, it can restore the balance between specialized anaerobes and facultative anaerobes, thereby improving the gut microbiota and treating UC. This article summarizes the role of PPARγ in UC and reviews the research progress of TCM in treating UC by intervening in PPARγ in the last five years, aiming to give insights into the treatment and new drug development for UC.

6.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 40-48, 2024.
Article in Chinese | WPRIM | ID: wpr-1011441

ABSTRACT

ObjectiveTo induce the rat model of ulcerative colitis (UC) with spleen-kidney Yang deficiency and liver depression, and explore the efficacy and mechanism of Sishenwan combined with Tongxie Yaofang (SSW&TXYF) based on the therapeutic principles of tonifying spleen, soothing liver, warming kidney, and astringing intestine. MethodSixty male SD rats were randomized into normal, model, mesalazine, and high-, medium-, and low-dose SSW&TXYF groups. The rats in other groups except the normal group were administrated with Sennae Folium decoction and hydrocortisone and received tail clamping for 14 days. On day 14, rats received enema with TNBS-ethanol solution to induce UC. The rats were administrated with corresponding drugs from day 15 of modeling, and the body weight and mental state were observed and recorded. The sucrose preference test was performed from day 25. On day 28, the rectal temperature was measured, and the rats were administrated with 3% D-xylose solution at a dose of 10 mL·kg-1 by gavage. Blood was sampled 1 h later, from which the serum was collected for measurement of the D-xylose content. The serum, hippocampus, and colorectum samples of rats were collected on day 29. The levels of gastrin (GAS), adrenocorticotropic hormone (ACTH), corticosterone (CORT), cyclic adenosine monophosphate (cAMP), cyclic guanosine monophosphate (cGMP), interleukin (IL)-4, tumor necrosis factor (TNF)-α, and interferon (IFN)-γ in the serum and 5-hydroxytryptamine (5-HT) in the hippocampus were determined by enzyme-linked immunosorbent assay. Hematoxylin-eosin staining was employed to reveal the colonic lesions. The mRNA and protein levels of p38 mitogen-activated protein kinase (MAPK), extracellular signal-regulated kinase (ERK), and c-Jun N-terminal kinase (JNK) in the colon tissue were determined by Real-time PCR and Western blot, respectively. ResultCompared with the normal group, the model group showed decreased body weight, anal temperature, and D-xylose content in the serum and increased GAS content (P<0.01). The modeling led to cAMP/cGMP unbalance and decreased the ACTH and CORT content in the serum (P<0.01), the preference for sucrose water, and the 5-HT content in the hippocampus (P<0.01). Moreover, it shortened the colorectal length and caused massive infiltration of inflammatory cells and severe structural damage in the colon tissue. High, medium, and low doses of SSW&TXYF improved above indicators (P<0.05, P<0.01), reduced inflammatory infiltration, and repaired the pathological damage of the tissue. Compared with the normal group, the model group showed lowered IL-4 level (P<0.01) and elevated TNF-α and IFN-γ levels (P<0.05, P<0.01) in the serum, as well as up-regulated expression of p38 MAPK, ERK, and JNK (P<0.05, P<0.01). Compared with the model group, SSW&TXYF elevated the IL-4 level (P<0.01), lowered the TNF-α and IFN-γ levels (P<0.05, P<0.01), and down-regulated the mRNA and protein levels of p38 MAPK, ERK, and JNK (P<0.05, P<0.01). ConclusionA rat model of UC with spleen-kidney Yang deficiency and liver depression was successfully established. SSW&TXYF can significantly mitigate this syndrome by reducing the inflammatory response in the colon and inhibiting the MAPK pathway.

7.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 80-87, 2024.
Article in Chinese | WPRIM | ID: wpr-1006271

ABSTRACT

ObjectiveThe antitumor activity of sesquiterpenoid M36 isolated from Myrrha against human hepatoma HepG2 cells was investigated in this study. MethodHepG2 cells were treated with M36 at different concentrations (0, 2, 4, 6, 8, 10 μmol·L-1). Firstly, the effects of M36 on the proliferation of human hepatoma HepG2 cells were detected by methyl thiazolyl tetrazolium (MTT), colony formation assay, and EdU proliferation assay. Hoechst staining, flow cytometry analysis, and Western blot were used to explore the effect of M36 on the apoptosis of human hepatoma HepG2 cells. Acridine orange staining and western blotting were used to examine the effect of M36 on autophagy in HepG2 cells. Finally, Western blot was used to detect protein expression of cancer-related signaling pathways. ResultCompared with the blank group, M36 treatment significantly inhibited the proliferation of human hepatoma HepG2 cells (P<0.01), and the half inhibitory concentration (IC50) value of M36 for 48 h was 5.03 μmol·L-1, in a dose- and time-dependent manner. M36 was also able to induce apoptosis and autophagy in human hepatoma HepG2 cells. After treatment with 8 μmol·L-1 M36 for 48 hours, the apoptosis rate of HepG2 cells was (42.03±9.65)% (P<0.01). Compared with the blank group, HepG2 cells treated with 4 and 8 μmol·L-1 M36 for 48 h had a significant increase in cleaved poly ADP-ribose polymerase (cleaved-PARP) protein levels (P<0.01). Acridine orange staining showed that autophagy was significantly activated in HepG2 cells treated with 4 and 8 μmol·L-1 M36 for 48 h compared with the blank group (P<0.01), which was further verified by the up-regulation of microtubule-associated protein 1 light chain 3 Ⅱ (LC3 Ⅱ). Western blot results showed that compared with the blank group, the levels of phosphorylated extracellular regulated protein kinase (p-ERK), phosphorylated p38 mitogen-activated protein kinase (p-p38 MAPK), phosphorylated c-Jun N-terminal kinase (p-JNK), and its downstream nuclear transcription factors c-Jun and p-c-Jun protein were significantly increased in M36 group (P<0.05, P<0.01). The mechanism may be related to the up-regulation of MAPK signaling pathway. ConclusionThe sesquiterpenoid M36 isolated from Myrrha inhibits the proliferation of human hepatoma HepG2 cells and promotes apoptosis and autophagy, which may be related to the activation of the MAPK signaling pathway.

8.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 114-123, 2024.
Article in Chinese | WPRIM | ID: wpr-1005260

ABSTRACT

ObjectiveTo study whether Chaihu Longgu Mulitang can inhibit hypothalamic inflammation, mitigate anxiety-like behavior, and alleviate anxiety symptoms by regulating the p38 mitogen-activated protein kinase/nuclear factor-κB (p38 MAPK/NF-κB) signaling pathway in the rat model of generalized anxiety disorder (GAD). MethodTwelve out of 74 Wistar rats were randomly selected as the blank group, and the remaining rats were subjected to chronic restraint stress for the modeling of GAD. The open field test (OFT) and elevated Porteus maze test (PMT) were conducted 14 days after modeling to detect the anxiety-like behaviors. Sixty successfully modeled rats were selected and randomized into model, low-, medium-, and high-dose (6, 12, and 24 g·kg-1, respectively) Chaihu Longgu Mulitang, and diazepam (1 mg·kg-1) groups (n=12) and administrated with corresponding drugs for 14 consecutive days. OFT and PMT were then carried out to examine the anxiety-like behaviors of the rats. The levels of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and interleukin-1β (IL-1β) in the hypothalamus and serum of rats were determined by the enzyme-linked immunosorbent assay (ELISA). Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR)was conducted to determine the mRNA levels of p38 MAPK, NF-κB p65, nuclear factor κB inhibitor α (IκBα), and ionized calcium binding adaptor molecule 1 (Iba-1). The protein levels of p38 MAPK, phosphorylated (p)-p38 MAPK, NF-κB p65, p-NF-κB p65, and IκBα in the hypothalamus of rats were determined by Western blot. The expression of Iba-1 in the hypothalamic microglia was detected by immunofluorescence assay. ResultCompared with the blank group, the model group had decreased body weight, scattered dark yellow fur, increased irritability, and preference to hibernation in the corner. In addition, the modeled rats showed increased edge movement distance and time in OFT (P<0.01) and decreased movement distance and time and the number of entries in the open arm in PMT (P<0.01). The modeling increased the fluorescence intensity of Iba-1 in paraventricular nucleus of hypothalamus (P<0.01), elevated the levels of IL-1β, IL-6, and TNF-α in the serum and hypothalamus (P<0.01), up-regulated the protein and mRNA levels of p38 MAPK, NF-κB p65, p-p38 MAPK, p-NF-κB p65, and Iba-1 (P<0.05, P<0.01), and down-regulated the protein and mRNA levels of IκBα (P<0.01) in the hypothalamus. Compared with the model group, medium- and high-dose Chaihu Longgu Mulitang and diazepam increased the body weight, improved the fur and behaviors, decreased the edge movement distance and time in OFT (P<0.05, P<0.01), and increased the movement distance and time in the open arm in PMT (P<0.05, P<0.01). Furthermore, they decreased the fluorescence intensity of Iba-1 in hypothalamic microglia (P<0.05, P<0.01), lowered the levels of IL-1β, IL-6, and TNF-α in the serum and hypothalamic tissue (P<0.05, P<0.01), down-regulated the mRNA and protein levels of p38 MAPK, NF-κB p65, p-p38 MAPK, p-NF-κB p65, and Iba-1 (P<0.05, P<0.01), and up-regulated the mRNA and protein levels of IκBα (P<0.05, P<0.01) in the hypothalamus. ConclusionChaihu Longgu Mulitang can mitigate anxiety-like behaviors and relieve anxiety in GAD rats by inhibiting the p38 MAPK/NF-κB signaling pathway and reducing the activation of microglia and the levels of pro-inflammatory cytokines in the hypothalamus.

9.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 91-98, 2024.
Article in Chinese | WPRIM | ID: wpr-1003412

ABSTRACT

ObjectiveTo observe the effects and underlying mechanisms of Fagopyri Dibotryis Rhizoma extract on the proliferation, apoptosis, and autophagy of human colorectal cancer HCT-116 cells. MethodFirstly, cellular activity was detected by the cell proliferation and activity-8 (CCK-8) assay, and the half inhibition rate (IC50) was calculated. Blank group and Fagopyri Dibotryis Rhizoma group (2, 4, 8 mg·L-1) were set. The effect of Fagopyri Dibotryis Rhizoma on the proliferation of HCT-116 cells was observed by cloning experiments, and that of Fagopyri Dibotryis Rhizoma on apoptosis was observed by flow cytometry. The expressions of autophagy-related proteins, p38 mitogen-activated protein kinase (p38 MAPK), extracellular signal-regulated kinase (ERK), c-Jun amino-terminal kinase (JNK), phosphorylated (p)-p38, p-ERK, p-JNK, and other proteins were detected by Western blot. Finally, flow cytometry instrumentation and fluorescence microscopy were used to analyze the changes in reactive oxygen species (ROS), and a ROS scavenger (NAC) was adopted for verification. ResultCompared with the blank group, the activity of HCT-116 cells was significantly decreased in the Fagopyri Dibotryis Rhizoma group (P<0.05, P<0.01). The apoptosis rate of HCT-116 cells in the Fagopyri Dibotryis Rhizoma group was significantly increased (P<0.01). The expression of autophagy-related protein ubiquitin-binding protein (p62) was decreased, but that of autophagy-specific genes (Beclin1) and autophagic microtubule-associated protein 1 light-chain 3B (LC3B) was enhanced (P<0.05, P<0.01). Compared with the Fagopyri Dibotryis Rhizoma group, the apoptosis rate of HCT-116 cells in the Fagopyri Dibotryis Rhizoma + NAC group was significantly reduced (P<0.01). The expression of related autophagy protein Beclin1 was significantly reduced (P<0.01), and that of LC3B protein was reduced (P<0.01). In addition, the expression of MAPK pathway-related proteins ERK and JNK was decreased in the Fagopyri Dibotryis Rhizoma group (P<0.05, P<0.01), and that of p-ERK and p-JNK was enhanced (P<0.05, P<0.01). ConclusionFagopyri Dibotryis Rhizoma can inhibit the proliferation of HCT-116 cells and induce apoptosis and autophagy through the ROS/MAPK signaling pathway.

10.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 120-129, 2024.
Article in Chinese | WPRIM | ID: wpr-999168

ABSTRACT

ObjectiveTo investigate the therapeutic effects and difference in the effects of Arisaematis Rhizoma (AR) before and after processing (i.e., Arisaematis Rhizoma Preparatum, ARP) with Zingiberis Rhizoma Recens-Alumen on allergic asthma in rats and to provide a basis for the theory of processing improving the efficacy. MethodA rat model of allergic asthma was established in 70 SD rats by intraperitoneal injection of ovalbumin (OVA)-aluminum hydroxide. The rats were administrated with the aqueous extracts of AR (1.2, 0.3 g∙kg-1) and ARP (1.2, 0.3 g∙kg-1) aqueous extracts by gavage, and montelukast sodium (0.001 g∙kg-1) was used as the positive drug. The T helper cell type 1/type 2 (Th1/Th2) ratio in the serum and bronchoalveolar lavage fluid (BALF) and percentages of inflammatory cells in BALF were determined. Polymerase chain reaction (PCR) was employed to determine the mRNA level of mucin 5AC (MUC5AC) in the lung tissue. The pathological changes in the lung tissue were observed by hematoxylin-eosin (HE) staining and PAS staining. Immunohistochemical assay was employed to measure the expression of c-Jun amino-terminal kinase (JNK), extracellular signal regulated protein kinase (ERK), and p38 mitogen-activated protein kinase (p38 MAPK) in rat lung tissue. Western blot was employed to determine the protein levels of ERK, p-ERK, JNK, p-JNK, p38, p-p38 in the lung tissue. The effects of AR and ARP were compared based on overall desirability. ResultCompared with the blank group, the levels of interleukin-12 (IL-12) and γ interferon (IFN-γ) in serum and BALF of rats in the model group were significantly lower (P<0.05, P<0.01), and the levels of interleukin-4 (IL-4), interleukin-5 (IL-5) and interleukin-13 (IL-13) were significantly higher (P<0.05, P<0.01). Compared with the model group, the serum and BALF contents of IL-12 and IFN-γ in rats in the montelukast sodium group, high-dose AR group and high-dose ARP group were significantly higher (P<0.05, P<0.01), and the contents of IL-4, IL-5 and IL-13 were significantly lower (P<0.05, P<0.01), and the serum contents of IFN-γ in rats in the low-dose AR group and low-dose ARP group were in BALF was significantly higher (P<0.05) and IL-4 and IL-13 were significantly lower (P<0.05, P<0.01), the percentages of macrophages, lymphocytes, neutrophils, and eosinophils were reduced in BALF, and the expression of JNK/ERK/p38 MAPK signaling pathway and MUC5AC protein was inhibited in lung tissues. Overall assessment of the normalized analysis revealed that the ARP group was slightly more potent than the AR group after administration of the same dose. ConclusionAR and ARP can effectively treat allergic asthma by inhibiting JNK/ERK/p38 MAPK signaling pathway, and the effect is better after concoction, which can provide data support for its "concoction efficiency".

11.
China Pharmacy ; (12): 1967-1971, 2023.
Article in Chinese | WPRIM | ID: wpr-980589

ABSTRACT

OBJECTIVE To explore the effects of pterostilbene (PTE) on wound healing in diabetic skin ulcer model rats and its mechanism. METHODS Ten SD rats were grouped into control group; after diabetic skin ulcer model of other rats was induced by giving high-fat and high-sugar diet+intraperitoneal injection of streptozotocin+cutting off the skin and subcutaneous tissue in the marked area of the back, model rats were randomly divided into model group, PTE low-dose group (40 mg/kg), PTE high-dose group (80 mg/kg), PTE high-dose+PP2 group (80 mg/kg PTE+2 mg/kg SRC inhibitor PP2), with 10 rats in each group. On the second day after modeling, the rats in each drug group were intraperitoneally injected with corresponding drug solutions, while the rats in control group and model group were intraperitoneally injected with normal saline, once a day, for 14 consecutive days. The wound healing rate of rats in each group was measured on the 7th and 14th day of administration; the contents of interleukin-1β (IL-1β), IL-6, tumor necrosis factor-α (TNF-α) and vascular endothelial growth factor (VEGF) in the serum of rats were detected; the pathological changes of wound granulation tissue were observed, and the expressions of SRC/mitogen-activated protein kinase kinase (MEK)/extracellular signal-regulated kinase (ERK) signaling pathway-related proteins in wound granulation tissue were detected. RESULTS Compared with control group, the wound healing rate, serum content of VEGF, the phosphorylation levels of SRC, MEK1/2 and ERK1/2 were decreased significantly (P<0.05), while serum contents of IL- 1β, IL-6 and TNF-α were increased significantly (P<0.05); there was obvious infiltration of inflammatory cells in the wound granulation tissue, and the number of new blood vessels decreased. Compared with model group, above indexes of PTE low-dose and high-dose groups were improved significantly (P<0.05), and the pathological injury of granulation tissue in wound was improved. PP2 significantly reversed the improvement effects of PTE on the above indexes (P<0.05). CONCLUSIONS PTE can promote the wound healing of diabetic skin ulcer model rats, the mechanism of which may be related to activating SRC/MEK/ERK signaling pathway.

12.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 26-33, 2023.
Article in Chinese | WPRIM | ID: wpr-979448

ABSTRACT

ObjectiveTo investigate the regulatory effects of Xuanfu Daizhetang on a mouse model of allergic asthma induced by ovalbumin (OVA). MethodSixty female BALB/c mice (6-8 weeks old, SPF) were randomly divided into groups. Ten mice were assigned to the normal group and given 0.2 mL of saline, while the remaining groups received intraperitoneal injections of Al(OH)3 at 5 g·L-1 and OVA at 1 g·L-1. The mice were divided into normal group (10 mL·kg-1 saline), OVA model group (10 mL·kg-1 saline), dexamethasone group (OVA+DEX, 1 mg·kg-1), OVA+ low-dose Xuanfu Daizhetang group (OVA+XL, 7.065 g·kg-1), OVA+ medium-dose Xuanfu Daizhetang group (OVA+XM, 14.13 g·kg-1), and OVA+ high-dose Xuanfu Daizhetang group (OVA+XH, 28.26 g·kg-1). An OVA-induced asthma model was established in mice. Hematoxylin-eosin (HE) and periodic acid-Schiff (PAS) staining methods were used to observe bronchial tissue pathological changes. Enzyme-linked immunosorbent assay (ELISA) was performed to measure the levels of immunoglobulin E (IgE), interleukin-4 (IL-4), IL-5, IL-13, IL-17A, and γ interferon (IFN-γ) in bronchoalveolar lavage fluid. Western blot was used to detect the phosphorylation of extracellular signal-regulated kinase (ERK), p38 mitogen-activated protein kinase (MAPK), and c-Jun N-terminal kinase (JNK) proteins in lung tissue. ResultCompared with the normal group, the OVA model group showed increased inflammatory cell infiltration in mouse alveoli, elevated levels of IL-4, IL-5, IL-13, IL-17A, IFN-γ in bronchoalveolar lavage fluid, and IgE in serum (P<0.05, P<0.01), and promoted phosphorylation of MAPK signaling pathway-related proteins. Compared with the model group, the OVA+XL, OVA+XM, and OVA+XH groups showed reduced inflammatory cell infiltration in mouse alveoli, decreased levels of IL-4, IL-5, IL-13, IL-17A, IFN-γ in bronchoalveolar lavage fluid, and IgE in serum (P<0.05, P<0.01), and inhibited phosphorylation of MAPK signaling pathway-related proteins. ConclusionThe results of this study suggest that Xuanfu Daizhetang has potential anti-allergic asthma activity, providing a theoretical basis for its future clinical application.

13.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 222-229, 2023.
Article in Chinese | WPRIM | ID: wpr-973152

ABSTRACT

With the aging of population, osteoporosis has become one of the main diseases endangering the health of the elderly in China. Therefore, the research on osteoporosis has become a hot spot. Since Chinese medicines demonstrate significant therapeutic effects on osteoporosis, this issue is attracting increasing attention from researchers, especially in the deciphering of the molecular mechanism. This paper introduces the mechanism of the prevention and treatment of osteoporosis by Chinese medicines via the mitogen-activated protein kinase (MAPK) signaling pathway, aiming to provide a theoretical basis for deciphering the mechanism of Chinese medicines in the treatment of osteoporosis and promoting their clinical application. MAPK signaling pathway mainly involves p38 MAPK, extracellular signal-regulated kinase 1/2 (ERK1/2), c-Jun N-terminal kinase (JNK), and extracellular signal-regulated kinase 5 (ERK5). Studies have shown that these proteins play a role in the progression of osteoporosis by regulating cell proliferation, differentiation, and apoptosis. Chinese medicines as a unique therapy with Chinese characteristics has definite efficacy, high safety, and mild side effects. Researchers have proved by experiments that the extracts or compounds of Chinese medicines can significantly mitigate osteoporosis by regulating the proteins involved in the MAPK signaling pathway. Therefore, this article reviews the relevant studies with focus on these proteins.

14.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 71-77, 2023.
Article in Chinese | WPRIM | ID: wpr-973134

ABSTRACT

ObjectiveTo investigate the effects of Yanghetang (YHT) on breast cancer 4T1 cells and their mitogen-activated protein kinase (MEK)/extracellular signal-regulated kinase (ERK) signaling pathway. MethodThe YHT-containing serum was prepared from SD rats. The rats were randomly assigned into a blank group (normal saline) and low-, medium-, and high-dose (5.8, 11.6, 23.2 g·kg-1, respectively) YHT groups. The serum containing 10% YHT in each group was mixed with 90% RMPI 1640 complete medium, and the mixture was used to interfere with the cells. Cell counting kit-8 (CCK-8) method was used to detect the proliferation of the 4T1 cells treated with YHT for 24, 48, 72 h. The apoptosis, migration, and invasion of 4T1 cells were detected by flow cytometry, scratch test, and Transwell assay, respectively. Western blot was employed to determine the expression levels of MEK1/2, phosphorylation (p)-MEK1/2, ERK1/2, p-ERK1/2, and rat sarcoma virus (RAS) protein. ResultCompared with the blank group, the intervention with YHT-containing serum for 24, 48, and 72 h had significant inhibitory effect on 4T1 cell proliferation (P<0.05, P<0.01). After intervention with YHT-containing serum for 48 h, the apoptosis rate of cells increased (P<0.01). Compared with the blank group, the intervention with YHT for 24 h and 48 h decreased the healing ability of cells in the scratch test (P<0.01). The invasive ability of cells treated with the low, medium, and high-dose YHT containing serum showed a decreasing trend (P<0.01). Compared with the blank group, YHT-containing serum did not change the expression of MEK1/2 and ERK1/2 while down-regulating the expression of p-MEK1/2, p-ERK1/2, and RAS protein (P<0.01). ConclusionYHT can inhibit the proliferation, migration, and invasion and promote the apoptosis of breast cancer 4T1 cells. In may promote the apoptosis by inhibiting the MEK/ERK signaling pathway and down-regulating the expression of p-MEK1/2, p-ERK1/2, and RAS protein.

15.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 212-223, 2023.
Article in Chinese | WPRIM | ID: wpr-972303

ABSTRACT

Diabetic kidney disease (DKD), a major microvascular complication of diabetes mellitus, serves as the most common cause of end-stage renal disease worldwide. The progression of DKD is closely related to oxidative stress, inflammatory response, apoptosis, and fibrosis in renal tissues activated by high glucose. Numerous studies have shown that the transduction of the p38 mitogen-activated protein kinase (p38 MAPK) signaling pathway is involved in the pathological process of DKD in renal tissues, activating various pathological mechanisms, such as oxidation, inflammation, apoptosis, and fibrosis. Therefore, blocking the transduction of the p38 MAPK signaling pathway is beneficial to alleviating DKD. At present, the main treatment principles of western medicine are glucose lowering, lipid lowering, and blood pressure lowering, as well as medications with new drugs renal sodium-glucose co-transporter 2 (SGLT2), mineralocorticoid receptor, and endothelin receptor, but the progression of DKD still cannot be stopped. The treatment of DKD by traditional Chinese medicine (TCM) has the advantages of simplicity, low cost, and convenience, and the symptoms and root causes can be both treated. In recent years, the basic research on Chinese medicine intervention in DKD has greatly advanced, and p38 MAPK is the key factor of Chinese medicine intervention in DKD. The present study searched and reviewed the literature on the Chinese medicine intervention in the p38 MAPK signaling pathway in DKD treatment in the past decade. The results showed that p38 MAPK interacted with transforming growth factor-β1 (TGF-β1), cysteinyl aspartate-specific protease-3 (Caspase-3), nuclear factor-κB (NF-κB), and other factors to activate fibrosis, inflammation, oxidative stress, and apoptosis. By acting on p38 MAPK and its upstream and downstream factors, Chinese medicine blocked the pathological processes of DKD and inhibited the pathological injury of DKD and the deterioration of renal function. This study is expected to provide new ideas and directions for the prevention and treatment of DKD with Chinese medicine.

16.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 106-112, 2023.
Article in Chinese | WPRIM | ID: wpr-972291

ABSTRACT

ObjectiveTo investigate the mechanism of Lycium barbarum polysaccharides (LBP) in promoting the activation of RAW264.7 macrophages. MethodRAW264.7 macrophages were stimulated with LBP at different concentrations (50, 100, 200 mg·L-1), and those stimulated with lipopolysaccharide (LPS) at 100 μg·L-1 and galactose (Gal) at 100 mg·L-1 as positive controls. After 24 h of LBP stimulation, the cell counting kit-8 (CCK-8) was used to detect the survival rate of RAW264.7 macrophages treated with LBP (0, 50, 100, 200, 400, 800 mg·L-1). The levels of interleukin-6 (IL-6) and interleukin-12 (IL-12) in cell culture supernatant were detected by enzyme-linked immunosorbent assay (ELISA). The protein and mRNA expression of p38 mitogen-activated protein kinase (MAPK), extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK), and nuclear factor κB (NF-κB) in Toll-like receptor 4 (TLR4)/Toll-like receptor 2 (TLR2)/macrophage galactose-type lectin (MGL) pathway of RAW264.7 macrophages was detected by Real-time fluorescence-based quantitative polymerase chain reaction (Real-time PCR) and Western blot. ResultCCK-8 results showed that compared with the results in the blank group, the survival rate of RAW264.7 macrophages decreased in the 400, 800 mg·L-1 LBP groups (P<0.05). ELISA results showed that compared with the blank group, 50 mg·L-1 LBP could promote the secretion of IL-12 in RAW264.7 macrophages (P<0.01). Compared with the blank group, 100 mg·L-1 LBP and 200 mg·L-1 LBP could promote the secretion of IL-6 in RAW264.7 macrophages (P<0.05, P<0.01). Western blot results showed that compared with the blank group, the LBP groups (50, 100, 200 mg·L-1) enhanced protein expression levels of MAPK key molecules (p-p38 MAPK, p-ERK, p-NF-κB, and p-JNK) in TLR4, TLR2, and MGL pathways (P<0.05, P<0.01). Compared with the model group, the 200 mg·L-1 LBP group could promote the expression level of p-NF-κB protein in RAW264.7 macrophages (P<0.01). Real-time PCR results showed that compared with the blank group, the LBP groups (50, 100, and 200 mg·L-1) enhanced the mRNA expression levels of MAPK key molecules (p38 MAPK, ERK, NF-κB, and JNK) in TLR4 and TLR2 pathways (P<0.05, P<0.01). Compared with the model group, the 50 and 200 mg·L-1 LBP groups could promote the mRNA expression levels of JNK and ERK2 in RAW264.7 macrophages (P<0.05, P<0.01). ConclusionLBP can regulate the activation of RAW264.7 macrophages and participate in the immune response through the TLR2/TLR4/MGL pathway.

17.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 43-52, 2023.
Article in Chinese | WPRIM | ID: wpr-972284

ABSTRACT

ObjectiveTo explore the anti-inflammatory effect of Duhuo Jishengtang (DHJST) on collagen-induced arthritis (CIA) model rats and its effect on the Toll-like receptor 2 (TLR2)/p38 mitogen-activated protein kinase (MAPK)/nuclear factor-κB (NF-κB) signaling pathway. MethodForty-eight male SD rats were randomly divided into the following six groups (n=8): normal group, model group, methotrexate (MTX) group, low-dose DHJST (DHJST-L) group, medium-dose DHJST (DHJST-M) group, and high-dose DHJST (DHJST-H) group. The CIA model was established by injecting bovine type Ⅱ collagen into the rat tail root with the collagen antibody induction method. After model induction, rats were treated with drugs by gavage. The rats in the MTX group received MTX at 2.0 mg·kg-1, three times a week, and those in the DHJST groups received DHJST at 3.8, 7.6, 15.2 g·kg-1·d-1 for 28 days. The rats in the normal group and the model group were given the same dose of normal saline. The weight of the rats was recorded, and the paw swelling degree was observed. The arthritis index and immune organ index were measured, and the changes in the microcirculation indexes of the rats were detected with a microcirculation detector. Hematoxylin-eosin (HE) staining was used to detect the pathological morphologic changes in rat synovial tissues and the apoptosis rate of synovial cells was detected by flow cytometry to determine the therapeutic effect of DHJST on rheumatoid arthritis. Enzyme-linked immunosorbent assay (ELISA) was used to detect the changes in serum levels of tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, IL-17A, and interferon-γ (IFN-γ). The protein expression of TLR2, NF-κB p65, phosphorylated NF-κB p65 (p-NF-κB p65), p38 MAPK, and p-p38 MAPK was detected by Western blot. ResultCompared with the normal group, the model group showed reduced body weight (P<0.01), increased paw swelling degree, arthritis index, and immune organ index (P<0.01), increased comprehensive microvascular score and vascular resistance (P<0.01), significant hyperplasia of synovial tissues and massive infiltration of inflammatory cells as revealed by pathological sections, and up-regulated expression levels of TNF-α, IL-1β, IL-17A, and IFN-γ in serum, and TLR2, p-NF-κB p65/NF-κB p65 and p-p38 MAPK/p38 MAPK in synovial tissues (P<0.01). Compared with the model group, the DHJST groups showed increased body weight of rats (P<0.01), decreased paw swelling degree, arthritis index, and immune organ index (P<0.05, P<0.01), reduced comprehensive microvascular score and vascular resistance (P<0.05, P<0.01), improved synovial histopathological injury, increased apoptosis rate of synovial cells (P<0.01), and down-regulated levels of TNF-α, IL-1β, IL-17A, and IFN-γ in serum (P<0.05, P<0.01) and TLR2, p-NF-κB p65/NF-κB p65 and p-p38 MAPK/p38 MAPK in synovial tissues (P<0.05, P<0.01). ConclusionDHJST may alleviate the inflammatory reaction in CIA rats by regulating the TLR2/p38 MAPK/NF-κB signaling pathway, thus exerting its anti-rheumatoid arthritis effect.

18.
Asian Journal of Andrology ; (6): 198-207, 2023.
Article in English | WPRIM | ID: wpr-971013

ABSTRACT

Mitogen-activated protein kinase-8-interacting protein 2 (MAPK8IP2) is a scaffold protein that modulates MAPK signal cascades. Although MAPK pathways were heavily implicated in prostate cancer progression, the regulation of MAPK8IP2 expression in prostate cancer is not yet reported. We assessed MAPK8IP2 gene expression in prostate cancer related to disease progression and patient survival outcomes. MAPK8IP2 expression was analyzed using multiple genome-wide gene expression datasets derived from The Cancer Genome Atlas (TCGA) RNA-sequence project and complementary DNA (cDNA) microarrays. Multivariable Cox regressions and log-rank tests were used to analyze the overall survival outcome and progression-free interval. MAPK8IP2 protein expression was evaluated using the immunohistochemistry approach. The quantitative PCR and Western blot methods analyzed androgen-stimulated MAPK8IP2 expression in LNCaP cells. In primary prostate cancer tissues, MAPK8IP2 mRNA expression levels were significantly higher than those in the case-matched benign prostatic tissues. Increased MAPK8IP2 expression was strongly correlated with late tumor stages, lymph node invasion, residual tumors after surgery, higher Gleason scores, and preoperational serum prostate-specific antigen (PSA) levels. MAPK8IP2 upregulation was significantly associated with worse overall survival outcomes and progression-free intervals. In castration-resistant prostate cancers, MAPK8IP2 expression strongly correlated with androgen receptor (AR) signaling activity. In cell culture-based experiments, MAPK8IP2 expression was stimulated by androgens in AR-positive prostate cancer cells. However, MAPK8IP2 expression was blocked by AR antagonists only in androgen-sensitive LNCaP but not castration-resistant C4-2B and 22RV1 cells. These results indicate that MAPK8IP2 is a robust prognostic factor and therapeutic biomarker for prostate cancer. The potential role of MAPK8IP2 in the castration-resistant progression is under further investigation.


Subject(s)
Male , Humans , Androgens/therapeutic use , Receptors, Androgen/genetics , Prognosis , Mitogen-Activated Protein Kinase 8/therapeutic use , Cell Line, Tumor , Prostatic Neoplasms/pathology , Prostatic Neoplasms, Castration-Resistant/drug therapy , Gene Expression Regulation, Neoplastic
19.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 9-17, 2023.
Article in Chinese | WPRIM | ID: wpr-984578

ABSTRACT

ObjectiveTo observe the effect of Shenling Baizhusan on the intestinal inflammatory reaction in the rat model of Crohn's disease (CD) and study its relationship with p38 mitogen-activated protein kinase (MAPK) signaling pathway, so as to provide an experimental and theoretical basis for the clinical application of this prescription. MethodA total of 72 SD rats (36 males and 36 females) were randomized into a normal group (n=12) and a modeling group (n=60). The rats in the modeling group were treated with 2,4,6-trinitrobenzene sulfonic acid (TNBS, 3 mL·kg-1) and then randomized into model, mesalazine (0.21 g·kg-1·d-1), and low-, medium-, and high-dose (5.88, 11.76, 23.59 g·kg-1·d-1, respectively) Shenling Baizhusan groups. The rats in the drug intervention groups were administrated with corresponding agents by gavage for 14 days, and those in the normal and model groups with an equal volume of distilled water. The disease activity index (DAI) score of inflammatory bowel disease (IBD) and the colon mucosal damage index (CMDI) score of rats in each group were assessed after gavage. Hematoxylin-eosin (HE) staining was used to observe the histopathological changes in the colon, and enzyme-linked immunosorbent assay (ELISA) to measure the levels of tumor necrosis factor alpha (TNF-α), interleukin-1 (IL-1), and interleukin-6 (IL-6) in the serum. Western blotting was employed to determine the protein levels of p38 MAPK, phosphorylated p38 MAPK (p-p38 MAPK), p65 nuclear factor (NF)-κB, and phosphorylated-p65 NF-κB (p-NF-κB p65) in the colon tissue. Quantitative real-time polymerase chain reaction was conducted to determine the miRNA levels of p38 MAPK and NF-κB p65 in the colon tissue. ResultThe model group had higher DAI and CMDI scores than the normal group (P<0.01) and showed damaged epithelial cells in the colon mucosa, disarrangement of glands, damaged simple tubular glands, local necrosis, infiltration of a large number of inflammatory cells and lymphocytes in each layer, and presence of ulceration. Compared with the normal group, the model group showed elevated levels of TNF-α, IL-1, and IL-6 in the serum (P<0.01) and up-regulated protein levels of p-p38 MAPK and p-NF-κB p65 and miRNA level of p38 MAPK in the colon tissue (P<0.01). Compared with the model group, mesalazine and high- and medium-dose Shenling Baizhusan decreased the DAI and CMDI scores (P<0.05, P<0.01), repaired the mucosal epithelium of the colon tissue, increased the glands and goblet cells, lowered the levels of TNF-α, IL-1, and IL-6 in the serum (P<0.05, P<0.01), and down-regulated the protein levels of p-p38 MAPK and p-NF-κB p65 and the miRNA level of p38 MAP in the colon mucosa (P<0.01, P<0.05). ConclusionShenling Baizhusan can reduce intestinal inflammation of CD rats and promote the repair of colon mucosa by down-regulating the protein levels of p-p38 MAPK and pNF-κB p65 and the miRNA level of p38 MAPK to inhibit the p38 MAPK pathway.

20.
Frontiers of Medicine ; (4): 534-548, 2023.
Article in English | WPRIM | ID: wpr-982580

ABSTRACT

Autoimmune hepatitis (AIH) is a severe globally distributed liver disease that could occur at any age. Human menstrual blood-derived stem cells (MenSCs) have shown therapeutic effect in acute lung injury and liver failure. However, their role in the curative effect of AIH remains unclear. Here, a classic AIH mouse model was constructed through intravenous injection with concanavalin A (Con A). MenSCs were intravenously injected while Con A injection in the treatment groups. The results showed that the mortality by Con A injection was significantly decreased by MenSCs treatment and liver function tests and histological analysis were also ameliorated. The results of phosphoproteomic analysis and RNA-seq revealed that MenSCs improved AIH, mainly by apoptosis and c-Jun N-terminal kinase/mitogen-activated protein signaling pathways. Apoptosis analysis demonstrated that the protein expression of cleaved caspase 3 was increased by Con A injection and reduced by MenSCs transplantation, consistent with the TUNEL staining results. An AML12 co-culture system and JNK inhibitor (SP600125) were used to verify the JNK/MAPK and apoptosis signaling pathways. These findings suggested that MenSCs could be a promising strategy for AIH.


Subject(s)
Mice , Animals , Humans , Hepatitis, Autoimmune/pathology , Signal Transduction , Disease Models, Animal , Stem Cells
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