1.Anti-tumor Effects of ING5 Gene on Gastric Cancer
Xuefeng YANG ; Wenfeng GOU ; Shuang ZHAO ; Daofu SHEN ; Yazhou WU ; Junjun LI ; Huachuan ZHENG
Journal of China Medical University 2016;45(7):577-582
Objective To study the effect of ING5 gene on growth inhibition of gastric cancer. Methods ING5 expressing plasmid was transfect?ed into SGC?7901 cells. The cell viability was assessed by CCK?8,cell apoptosis and cycle was detected by flow cytometry analysis,the migration and invasion was evaluated by scratch and transwell,the expressions of mRNA and protein were determined by real?time quantitative PCR and West?ern blot respectively. Nude mice were implanted subcutaneously with SGC?7901 cells and tumor size and related protein were analyzed. Results After transfection of pEGFP?N1?ING5,the proliferation of gastric cancer SGC?7901 cells was significantly inhibited(P<0.05),the apoptosis was decreased(P<0.05),the percentage of G1 phase was increased and G2 phase was decreased(P<0.05),the ability of migration and invasion was reduced(P<0.05),the expression of NF?κB,PI3K,p?Akt1/2/3,Bcl?2,XIAP,β?catenin,c?myc mRNA,and protein levels were significantly in?creased(P<0.05),and the expression of Akt1/2/3、MMP9 mRNA and protein levels were significantly decreased(P<0.05). Conclusion The ING5gene inhibits the SGC?7901 cell proliferation,induces G1 arrest,inhibits the migration and invasion,and effectively regulates the related genes and proteins about cell proliferation,cell cycle and adhesion,but reduces apoptosis. ING5 can inhibit the evolution and development of gastric can?cer.
2.Roles of BTG3 Expression in Gastric Cancer and Mechanism for Its Tumor Suppression Function
Huachuan ZHENG ; Daofu SHEN ; Xuefeng YANG ; Wenfeng GOU ; Shuang ZHAO ; Wenlu ZHANG
Journal of China Medical University 2015;(10):877-882
Objective To clarify the clinicopathological significance and the reversing effects of BTG3 expression on the aggressive phenotype in gastric cancer. Methods BTG3 expression was detected in gastric cancer tissues by on tissue microarray and immunostaining. BTG3?expressing plasmid was transfected into MKN28 and MGC803 cells,the proliferation,cell cycle,differentiation and autophagy were analyzed by CCK?8,PI staining,alkaline phosphatase activity and GFP?LC?3B transfection,respectively. Results BTG3 overexpression inhibited cell proliferation,in?duced S/G2 arrest,differentiation and autophagy in both cells(P<0.05). BTG3 expression was decreased in gastric cancer in comparison with the adjacent mucosa(P<0.05),and positively correlated with venous invasion and dedifferentiation of the cancers(P<0.05). Conclusion BTG3 ex?pression contributes to gastric carcinogenesis and subsequent progression. BTG3 overexpression can reverse the aggressive phenotypes,which could be employed as a potential target for gene therapy of gastric cancer.
3.The inhibitory effects of suberoylanilide hydroxamic acid on the malignant phenotypes of ovarian carcinoma cells
Xingsheng CHANG ; Huachuan ZHENG ; Shuang ZHAO ; Wenfeng GOU ; Xuefeng YANG ; Xiaojuan LIU
Tianjin Medical Journal 2016;44(2):149-154,后插3
Objective To explore the effects and molecular mechanisms of suberoylanilide hydroxamic acid (SAHA) on ovarian carcinoma. Methods (1)Two groups of ovarian carcinoma cell lines (SKOV3 and SKOV3/DDP, HO8910 and HO8910-PM) were exposed to SAHA (1, 3, 5 and 7μmol/L SAHA,group 1-group 4). CCK-8 method was employed to eval-uate the inhibitory effects of SAHA.(2)Ovarian cancer cell lines treated with SAHA (2 or 5μmol/L SAHA) were used as 1 and 2 groups. Flow cytometry was performed following staining with Annexin V-FITC and PI for cell cycle and apoptosis.(3) Reverse transcription polymerase chain reaction (RT-PCR) and Western blot assay were used to assess the mRNA and pro-tein expression levels of phenotypic correlation factor. Results (1)After 48 h of SAHA treatment,the OD value of SKOV3, SKOV3/DDP,and HO8910 showed a trend of gradually reduce (P<0.05).(2)The apoptotic rates were significantly higher in SAHA 1 and SAHA 2 groups than those of control group (P<0.05). Compared with control group, after 48 h of SAHA treat-ment,S phase and G2/M phase of SKOV3 and SKOV3/DDP cells increased;G0/G1 phase of HO8910 and HO8910-PM cells increased in SAHA 1 and 2 groups (P<0.05).(3)The expression levels of CyclinB1 and Cdc2 (p34) mRNA were significant-ly lower in SAHA 1 and 2 groups than those of control group,while the expression levels of Caspase-3,p21 and p53 mRNA expression were significantly higher in SAHA 1 and 2 groups than those of control group. Furthermore,the expression of Ac-Histone H3,Ac-Histone H4,p53 protein were markedly improved,and CyclinB1,Cdc2(p34) protein decreased in SAHA 1-4 groups. Conclusion SAHA may suppress cell growth, induce apoptosis and cause cycle arrest in ovarian carcinoma cells by promoting histone acetylation or modulating their phenotype-related proteins of Caspase-3, p53, CyclinB1 and Cdc2(p34).
4.Effect analysis of hybrid operation for the treatment of intracranial complex ruptured aneurysms
Wenfeng FENG ; Gang WANG ; Guozhong ZHANG ; Mingzhou LI ; Yanxia GOU ; Xiaoyan HE ; Dan LIU ; Ye SONG ; Haojiang XIAO ; Songtao QI
Chinese Journal of Cerebrovascular Diseases 2017;14(9):478-483
Objective To investigate the safety and short-term effectiveness of the hybrid operation for the treatment of intracranial complex ruptured aneurysms.Methods From December 2014 to March 2017,14 consecutive patients with complex ruptured aneurysm treated with hybrid operation at the Department of Neurosurgery,Nanfang Hospital,Southern Medical University were enrolled retrospectively,including 13 with acute spontaneous aneurismal subarachnoid hemorrhage and 1 with hemorrhage in the recurrent aneurysm embolization.Twelve aneurysms were treated with shape clipping.Digital subtraction angiography (DSA) was used to evaluate the clipping effect of aneurysms.Two patients with aneurysm were treated with extracranial-intracranial (EC-IC) bypass and aneurysm trapping.Endovascular balloon occlusion for trapping aneurysms was performed after DSA evaluation of the patency of bridge vessel.Results Of the 14 patients,11 were treated with emergency hybrid operation after angiography,2 were treated with elective surgery,and 1 with emergency surgery for rescue because of bleeding during embolization.DSA revealed that the aneurysm clips in 3 of 12 patients needed to be adjusted,including 2 parent artery stenosis and 1 with incomplete clipping.After adjustment,the clipping was satisfactory.In intracranial and extracranial bypass surgery,angiography revealed that the blood vessels were patent.Trapping of the aneurysms was performed in the one-stage operation.One patient discharged voluntarily after procedure because of serious vasospasm.Onepatient had perfusion pressure breakthrough after surgery and received hematoma evacuation and decompression.The Glasgow outcome scale (GOS) score was 3 at discharge.Other patients had no new neurological dysfunction after operation.Thirteen patients were followed up for 3-24 months after operation.There were no new neurological dysfunction,including GOS 5 in 8 cases and 4 in 5 cases.Six patients underwent DSA examination,in 4 of them the aneurysm clipping did not show aneurysm recurrence,and the parent arteries were patent.Two patients treated with vascular bypass.There were no recurrence of aneurysms,and the parent arteries and anastomotic vessels were patent.Conclusion After preliminary observation,using hybrid operation for the treatment of complicated intracranial ruptured aneurysms was safe and effective.
5.Application of two-photon imaging technology in the repair evaluation of radiation-induced skin injury in rats
Gaiying HE ; Wenfeng GOU ; Yi WANG ; Wenbin HOU ; Jinghui TANG ; Shuhua MA ; Yanan SUN ; Weifeng YANG ; Qiang FANG ; Yiliang LI
Chinese Journal of Radiological Medicine and Protection 2021;41(12):926-930
Objective:To evaluate the skin development and repair process of X-ray radiation damage in rat with non-invasive two-photon excitation fluorescence (TPEF) imaging technology in vivo. Methods:Totally 24 SD rats were randomly divided into four groups including X-ray irradiated group (25, 35 and 45 Gy) and non-irradiation control group. At different times after irradiation, the degree of skin injury was evaluated, and the pathological changes of nicotinamide adenine dinucleotide (phosphate) [NAD(P)H] and collagen fiber fluorescence signals in epidermal cells were detected in vivo by TPEF imaging technology. Results:At 10 d post-irradiation, the skin of irradiation groups showed erythema and desquamation. At 15-20 d post-irradiation, the skin of radiation groups developed progressive exudation, edema and ulcers with increasing radiation dose. On day 25, the skin began to repair in the 25 Gy group, however, the skin of other groups still had exudation and ulcers. On day 10, NAD(P)H fluorescence signal in epidermal cells of irradiation groups decreased and the fluorescence signal of collagen fibers in papillary layer and reticular layer of irradiation groups reduced, which were significantly lower than that of normal control group ( t=24.145, 28.303, 26.989, 6.654, 7.510, 7.997, P<0.05). On day 30, fluorescence signal of NAD(P)H and collagen fibers in epidermal cells and dermis began to repair, the cell from stratum granulosum, stratum spinosum, and stratum basale in the 25 Gy group showed fluorescence signal, the other groups did not show. The fluorescence signal of collagen fibers in the 25 Gy group were gradually increased in papillary layer and reticular layer, however, they were significantly lower than normal control group ( t=115.133, 17.431, P<0.05), the skin of 45 Gy group did not show fluorescence signal of collagen fibers. Conclusions:The damage and repair process of epidermal cells and dermal collagen fiber can be detected noninvasively by TPEF imaging technology after X-ray irradiation in vivo.
6.Relationship between academic pressure and mobile game addiction among middle school students: mediating role of self-control
Yunjie GOU ; Chongyong SUN ; Lingcan LI ; Dandan LU ; Nanqing WANG ; Wenfeng BAI
Sichuan Mental Health 2022;35(1):52-56
ObjectiveTo explore the current status of academic stress, self-control and mobile game addiction among middle school students, and to test the mediating role of self-control. MethodsA total of 750 middle school students were enrolled by convenient sampling method, and were assessed using Academic Pressure Questionnaire, Self-Control Scale (SCS) and Mobile Game Addiction Scale. Thereafter, the mediating effect of self-control on the association between academic stress and mobile game addiction was analyzed with PROCESS mediating effect test. ResultsA total of 682 middle school students completed the survey. The scores of Academic Pressure Questionnaire, SCS and Mobile Game Addiction Scale of the selected middle school students were (58.56±11.34), (38.42±6.94) and (34.23±12.14), respectively. The total score and each dimension score of Academic Pressure Questionnaire were positively correlated with the total score of Mobile Game Addiction Scale (r=0.189~0.259, P<0.01), and negatively correlated with the SCS score (r=-0.348~-0.196, P<0.01). The total score and each dimension score of Mobile Game Addiction Scale were negatively correlated with SCS score (r=-0.336~-0.252, P<0.01). Academic stress could predict self-control negatively (β=-0.205, t=-9.288, P<0.01) and predict mobile game addiction positively (β=0.281, t=7.084, P<0.01). Meantime, self-control could predict mobile game addiction negatively (β=-0.480, t=-7.238, P<0.01). With self-control as a mediator variable, academic stress still significantly predicted the mobile game addiction (β=0.182, t=4.492, P<0.01). ConclusionThe academic pressure, self-control and mobile game addiction of middle school students are all at the lower middle level, moreover, self-control has a partial mediating effect between academic pressure and mobile game addiction.
7.Relationships between general self-efficacy and mobile game addiction among middle school students: mediating effect of time management disposition
Lingcan LI ; Chongyong SUN ; Yunjie GOU ; Dandan LU ; Nanqing WANG ; Wenfeng BAI
Sichuan Mental Health 2021;34(6):545-549
ObjectiveTo discuss the relationship between general self-efficacy and mobile game addiction among middle school students, and to analyse the mediating role of time management disposition. MethodsFrom November 2020 to February 2021, a sample of 667 students were recruited from three middle schools in Jiangxi and Sichuan provinces using cluster sampling method. All selected students were assessed using General Self-Efficacy Scale (GSES), Mobile Game Addiction Scale and Adolescence Time Management Disposition Inventory (ATMD). Further, Bootstrap method was used to test the mediating effect. Results①The total score of Mobile Game Addiction Scale was negatively correlated with the total scores of GSES and ATMD (r=-0.122, -0.333, P<0.01). The total score of ATMD was positively correlated with the total score of GSES (r=0.536, P<0.01). ②General self-efficacy and time management disposition could predict the mobile game addiction negatively (β=-0.333, -0.122, P<0.01), and general self-efficacy could predict the time management disposition positively (β=0.536, P<0.01). ③Time management disposition played a full mediating role between general self-efficacy and mobile game addiction, with a mediating effect size of -0.159 (95% CI: -0.213~-0.112, P<0.01), accounting for 70.38% of the total effect. ConclusionGeneral self-efficacy indirectly affects mobile game addiction via time management disposition.
8.Discovery of the radio-protecting effect of Ecliptae Herba, its constituents and targeting p53-mediated apoptosis in vitro and in vivo.
Jiang WU ; Wenfeng GOU ; Zhiyun WANG ; Huajie CHANG ; Deguan LI ; Wenbin HOU ; Changxiao LIU
Acta Pharmaceutica Sinica B 2023;13(3):1216-1230
Radiation protection drugs are often accompanied by toxicity, even amifostine, which has been the dominant radio-protecting drug for nearly 30 years. Furthermore, there is no therapeutic drug for radiation-induced intestinal injury (RIII). This paper intends to find a safe and effective radio-protecting ingredient from natural sources. The radio-protecting effect of Ecliptae Herba (EHE) was discovered preliminarily by antioxidant experiments and the mouse survival rate after 137Cs irradiation. EHE components and blood substances in vivo were identified through UPLC‒Q-TOF. The correlation network of "natural components in EHE-constituents migrating to blood-targets-pathways" was established to predict the active components and pathways. The binding force between potential active components and targets was studied by molecular docking, and the mechanism was further analyzed by Western blotting, cellular thermal shift assay (CETSA), and ChIP. Additionally, the expression levels of Lgr5, Axin2, Ki67, lysozyme, caspase-3, caspase-8,8-OHdG, and p53 in the small intestine of mice were detected. It was found for the first time that EHE is active in radiation protection and that luteolin is the material basis of this protection. Luteolin is a promising candidate for RⅢ. Luteolin can inhibit the p53 signaling pathway and regulate the BAX/BCL2 ratio in the process of apoptosis. Luteolin could also regulate the expression of multitarget proteins related to the same cell cycle.
9.Erratum: Author correction to 'Discovery of the radio-protecting effect of ecliptae herba, its constituents and targeting p53-mediated apoptosis in vitro and in vivo' Acta Pharm Sin B 13 (2023) 1216-1230.
Jiang WU ; Wenfeng GOU ; Zhiyun WANG ; Huajie CHANG ; Deguan LI ; Wenbin HOU ; Changxiao LIU
Acta Pharmaceutica Sinica B 2023;13(6):2815-2816
[This corrects the article DOI: 10.1016/j.apsb.2022.09.003.].
10. Molecular mechanisms of isoflavone puerarin against cardiovascular diseases: What we know and where we go
Weida QIN ; Jianghong GUO ; Wenfeng GOU ; Shaohua WU ; Wenbin HOU ; Weida QIN ; Shaohua WU ; Wenbin HOU ; Na GUO ; Yuping ZHAO
Chinese Herbal Medicines 2022;14(2):234-243
Puerarin (Pue), known as a phytoestrogen, has salient bioactivities and is promising against cardiovascular diseases. This article summarizes the underlying molecular mechanisms of Pue in treating cardiovascular diseases, especially regulating the intracellular signal transduction, influencing ion channels, modulating the expression of microRNA, and impacting on the autophagy, which are mainly involved in the inflammatory signaling pathways, fatty acid/lipid metabolism, oxidative stress, apoptosis, and the like. The protective effect of Pue against cardiovascular diseases mainly involves attenuating the myocardial injury and decreasing the myocardial fibrosis, improving the myocardial ischemia/reperfusion injury, as well as inhibiting the myocardial hypertrophy and atherosclerosis. The molecular mechanisms of Pue's cardiovascular protective effects for the first time and comment on the state-of-the-art research methods and principles of Pue's regulation of small molecules were reviewed, so as to provide the rationale for its basic research and clinical applications.