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Objective To investigate the upregulation of long-chain non-coding RNA LINC01204 on the expression of glypican-5 (GPC5) gene in bladder cancer cells and its effect on the proliferation,migration and invasion of bladder cancer cells.Methods Quantitative real-time quantitative polymerase chain reaction (qRT-PCR) was used to detect the expression of LINC01204 in 12 cases of bladder cancer tissues and paracancerous tissues,bladder cancer cell lines (BIU-87,T24,J82,5637) and normal bladder epithelial cell SV-HUC-1.The bladder cancer cells with the lowest level of LINC01204 were infected with lentivirus particles carrying LINC01204 (experimental group) or infected with negative control lentivirus particles (control group),and the expression of LINC01204 and GPC5 were detected by qRT-PCR in both groups of cells.Western blot was used to detect the expression of GPC5 protein in the two groups of cells.Cell counting kit-8 (CCK-8) and Transwell chamber assays were used to determine cell proliferation,migration and invasion.Results The expression of LINC01204 in bladder cancer tissues (0.773 ±0.063) was significantly higher than that in adjacent tissues (3.665 ± 0.330),with statistically significant difference (t =8.612,P ＜ 0.001).The expression of LINC01204 in bladder cancer cell lines BIU-87 (0.320 ± 0.034),T24 (0.515 ±0.056),J82 (0.644 ±0.039),and 5637 (0.147 ±0.018) were lower than that of normal bladder epithelial cells SV-HUC-1 (1.009 ± 0.077),with statistically significant difference (t =8.160,P＜0.001;t=5.179,P=0.002;t=4.221,P=0.006;t=10.890,P＜0.001).The expression of LINC01204 in 5637 cells was the lowest.The expression of LINC01204 and GPC5 mRNA in experimental group were significantly higher than that in the control group,with statistically significant difference [(11.000±1.028) vs (1.019 ±0.119),t =9.651,P＜0.001;(4.476 ±0.347) vs (1.046 ± 0.163),t =8.962,P ＜ 0.001],with statistically significant difference.Western blot showed that the expression of GPC5 protein was up-regulated.Compared with the control group,the proliferation ability of 5637 cells infected with LINC01204 in experimental group began to decrease significantly from the third day (0.686 ±0.044 vs 0.536 ±0.026,t =2.943,P =0.026).The number of migration cells in experimental group (118.300 ± 16.260) was significantly lower than that in the control group (208.200 ±22.930),with statistically significant difference (t =3.198,P =0.019).The number of cell invasion in experimental group (50.390 ±5.368) was significantly lower than that in the control group (97.480 ± 15.350),with statistically significant difference (t =2.896,P =0.028).Conclusions LINC01204 can upregulate the expression of GPC5 gene and inhibit the proliferation,migration and invasion of bladder cancer cells.Targeted therapy for LINC01204 is expected to become a new gene therapy method for bladder cancer.
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Objective The aim of this study was to investigate the anti-tumor effect on sequential injection of heterogeneic lymphocyte(HL)and autogeneic lymphocyte(AL). Methods The HL was prepared by using CC3HF1 mice as feeders. CB6F1 mice were used as recipients,and Hepa1-6 cells were inoculated into the recepients′groin subcutis. A cryoprecipitate was extracted from mouse plasma by freeze-thaw method to prepare fibrin Glue(FG);FG was combined with HL or AL to be FG-HL or FG-AL. The experimental treatment consisted of two stages. At first stage(15 d),FG-HL were injected on the surface of the tumor-bearing tissue of the recipients as the experimental group,and FG-phosphate buffer saline(FG-PBS)were injected on the surface of the tumor-bearing tissue of the rest recipients as the control group. The immunological factors such as tumor cell killing rate of the spleen lym-phocytes and numbers of lymphocytes,CD8 +T and NK in the two groups were detected,respectively. At later stage(10 d),a part of mice were randomly selected from the experimental and control groups,and the lymphocytes( AL) were used to form FG-AL,which were injected on the surface of tumor-bearing tissues in the rest of mice. Tumors in mice of the two groups were compared for tumor volume and tumor inhibition rate. Results The tumor cell killing rate of AL in the experimental group(26. 70 ± 7. 22) was signifi-cantly higher than that in the control group(5. 70 ± 2. 68)(P<0. 01). Numbers of mouse spleen lymphocytes,CD8 +T cells and NK cells were significantly higher than the corresponding values of the control group(P<0. 05). After the two-stage treatment,the aver-age tumor volume of the experimental group[(1.20 ±0.33)cm3]was significantly smaller than that of control group[(2.05 ±0.37) cm3](P<0. 01). The tumor inhibition rate in the experiment group was 41. 5% when compared to the control group. Conclusion Local injections of FG-HL followed by FG-AL can significantly inhibit the growth of transplanted tumor in mice;it is expected to become an anti-tumor biological therapy.
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Objective To analyze the epidemiological and clinical characteristics of 5 patients with importing yellow fever ,and to explore the preventive and control strategies of infection in hospital .Methods The epidemiological and clinical characteristics of 5 cases of importing yellow fever in Infectious Disease Hospital of Fujian Medical University from March 18th to April 6th in 2016 were retrospectively reviewed and analyzed .Results Five patients were all from Angola Luanda .One of them was vaccinated before going aboard ,and the others were vaccinated 1—10 days before disease onset in Angola .All of them were bitten by mosquitoes ,and their onset date ranged from March 11th to March 27th ,before returned to Fujian .The main clinical symptoms were fever ,chilly ,shivering ,fatigue ,arthrodynia ,headache ,and liver and kidney injury .At manifestations ,two patients had positive nuclear acid of yellow fever virus in serum samples and 3 patients were positive in urine samples .All of these patients were negative for dengue virus and Zika virus testing ,meanwhile no plasmodium was found in blood smears .All patients were cured and discharged . Conclusions There is risk of yellow fever transmission in Fujian Province . Prevention and control of the disease should be focus on improving the ability of finding and coping with the importing cases .Vaccination and hygiene knowledge propagation should be given for those who are going to epidemic country/area .Emergency monitoring and control of mosquitoes are necessary .
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Objective To explore the molecular mechanism of BRAFV600E inducing chromosome instability in Sbcl2 and SK-MEL31 melanoma cells.Methods The endogenous Mps1 in stable Sbcl2-and SK-MEL31-B-RafV600E expression cells were depleted by siRNA approach.To test the effect of B-RafV600E on the centrosome amplification and the formation of multipolar spindles,cells at S-phase with HU-treatment were arrested and then the centrosomes and mitotic spindles structure were detected through immunofluoresence.Results The percentage of B-RafV600E expressing Sbcl2 and SK-MEL31 cells (Sbcl2-B-RafV600E and SKMEL31-B-RafV600E) with centrosome amplification and multipolar spindle was reduced from 36 ％ to 6 ％ when Mps1 was absent.Conclusion B-RafV600E leads to centrosome amplification and multipolar spindle through Mps1,thus results in chromosome instability in Sbcl2 and SK-MEL31 melanoma cells.
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OBJECTIVE To investigate the susceptible factors and pathogenic bacteria in severe hepatitis and hepatocirrhosis cases infected by complex bacteria.METHODS We reviewed the severe hepatitis and hepatocirrhosis cases admitted to our hospital during 2004-2007,who infected by complex bacteria,to investigate the risk factors and pathogenic bacteria.RESULTS In 216 cases of severe hepatitis and hepatocirrhosis,27 cases were infected by complex bacteria(12.5%).After testing in 66 strains of bacteria,there were 22 strains of Gram-negative bacteria(33.3%),10 strains of Gram-positive bacteria(15.2%),and 34 strains of fungi(51.5%),most of the cases were at terminal stage,with long-term hospitalization,with different underlying diseases,repeated use of broad-spectrum antibiotic and hormone,and invasive operations.All of the factors might induce the complex bacteria infections.CONCLUSIONS The complex bacteria infections in the severe hepatitis and hepatocirrhosis cases are critical and difficult to cure.The underlying diseases should be treated actively;the detection of pathogenic bacteria and drug sensitive test should be carried out;the strict measurement of disinfection and isolation are strongly suggestedto decrease the rate of infection of bacteria and prevent the hazards.
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Objective To investigate the effect of high glucose on proliferation of rat mesangial cells and reactive oxygen species (ROS) in culture and the intervention of polysaccharides-2b from Mudan Cortex (PSM2b). Methods Cell proliferation was assessed by MTT colorimetric assay. Colorimetric assay was used to detect SOD and MDA in the supernatant of high glucose culture of rat mesangial cells. Results PSM2b could significantly inhibit the proliferation of mesangial cells, the inhibiting effect showed a dose-dependent manner. And SOD increased with PSM2b compared with that only with high glucose, while MDA decreased. Conclusion High glucose contributes to an increase in rat mesangial cells and ROS produced by rat mesangial cells and PSM2b can better control high glucose-induced proliferation of rat mesangial cells and oxidative stress.
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AIM: To study the hypoglycemic action of cortex moutan polysaccharide 2b (CMP 2b) and the its mechanism. METHODS: Some animal models in this study included the glucose induced hyperglycemic model in mice, the alloxan induced diabetic model in mice and rats, and the HCSS induced insulin resistance model in mice. Those models were used to investigate the effects of CMP 2b on blood glucose of normal and hyperglycemic model animals, on serum superoxide dismutase (SOD), serum insulin, glycated hemoglobin (GHb), and apolipoproteinA 1 (ApoA 1) in alloxan diabetic animals. RESULTS: CMP 2b significantly lowered the blood glucose in hyperglycemic mice and rats induced by glucose and alloxan. CMP 2b also raised the SOD and ApoA 1 level, decreased the GHb level in diabetic animals, and improved insulin resistance in mice. CONCLUSION: CMP 2b can control experimental hyperglycemia. Its mechanism is related to improving insulin sensitivity and enhancing the utilization of glucose in peripheral tissues.
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Objective To determine the relative molecular weight(M_r) of polysaccharide-2b of moutan(PSM_(2b)) to establish the standard of reference substance.Methods PSM_(2b) was separated by a Sepharose 4B column and then PSM_(2b-A) and PSM_(2b-B) were obtained after cryodesiccation.Then HPLC was used to determine their M_r.Ultrapure water was used as mobile phase to compare with 0.7% Na_2SO_4 solution.Results PSM_(2b-A) was pure.The M_r and polydispersity(D) of PSM_(2b-A) obtained by use of dextran as standard were 3.596 2?10~(5) and 4.15 in 0.7% Na_2SO_4 solution phase,respectively,and in ultrapure water phase the M_r and D were 4.758 5?10~(5) and 1.03,respectively.Conclusion Different results are detected by different mobile phases in determination of M_r and D of PSM_(2b-A) by HPLC.And the ultrapure water as mobile phase is more suitable than 0.7% Na_2SO_4 solution.
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AIM To study the effect of polysaccharides 2b from Mudan cortex (PSM 2b) on type 2 diabetes mellitus (T2DM) rats and explore its mechanism. METHODS T2DM rat model was established by low dosage streptozotocin and high sucrose fat diet. The drugs were administrated by ig for 5 weeks. The serum glucose was assayed with GOD POD method. Insulin was determined by radioimmunoassay. Insulin receptors of the plasma membrane from rat liver were determined with radioligand binding assay of receptors (RBAR). RESULTS PSM 2b could significantly lower fasting blood glucose (FBG), improve impaired glucose telarance (IGT) and dyslipidemia. It could also remarkably raise receptor total (RT2) of the low affinity insulin receptor (InsR) and insulin sensitivity index (ISI) in T2DM rats. CONCLUSION PSM 2b has an obvious therapeatic effect on T2DM in rats. Its mechamsm is relatively improve insulin resistance (IR) in T2DM rats by raising the number of InsR.
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Objective To investigate the effects of selenium-and zinc-enriched probiotics on the content of selenium and zinc in blood,antioxidation function and intestinal microflora in canine.Method Eight 18-month native canines,female and male in half,were randomly divided into the control and treatment groups on average.The control group received basal diet,the treatment group received basal diet supplemented with 2.0g selenium-and zinc-enriched probiotics everyday.To determine the experimental indices,the samples were collected on D0,D15 and D30,respectively.Results Compared with the control group,on D15,the content of selenium and zinc in blood,blood GPX,serum SOD,T-AOC and the amount of Lactobacillus in the experimental group were significantly increased,while the amount of Escherichia coli significantly decreased,but the serum MDA and the amount of Bifidobacterium,Staphylococcus and Enterococcus had no significant change.On D30,the content of selenium in blood,serum SOD,T-AOC and the amount of Lactobacillus were very significantly increased,while the content of zinc in blood,blood GPX and the amount of Bifidobacterium significantly increased;but serum MDA and the amount of Escherichia coli,Staphylococcus and Enterococcus very significantly decreased.Conclusion Selenium-and zinc-enriched probiotics could increase content of selenium and zinc in blood,enhance antioxidation function,improve and regulate the intestinal microflora.