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Baicalin extracted from Huangqin(Radix Scutellariae Baicalensis) induces apoptosis in gastric cancer cells by regulating B cell lymphoma(Bcl-2)/Bcl-2-associated X protein and activating caspase-3 and caspase-9 被引量:14
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作者 Wang Hongwei Li Hailong +5 位作者 Chen Fengqin Luo Jun Gu Jing Wang Huping Wu Hongyan Xu Yan 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2017年第2期229-235,共7页
OBJECTIVE:To evaluate the effects of baicalin in human gastric cancer cells, including apoptosis-inducing effects, and to investigate its underlying mechanisms of action.METHODS:Cell proliferation and apoptosis assays... OBJECTIVE:To evaluate the effects of baicalin in human gastric cancer cells, including apoptosis-inducing effects, and to investigate its underlying mechanisms of action.METHODS:Cell proliferation and apoptosis assays were performed to investigate the anti-proliferation effects of baicalin in human gastric cancer BGC-823 and MGC-803 cells.Real time-quantitative polymerase chain reaction and Western blotting analysis were performed to elucidate the molecular mechanisms underlying the anti-tumor properties of baicalin.RESULTS:In BGC-823 and MGC-803 gastric cancer cells treated with 80, 120, and 160 μmol/L baicalin for 48 h, a 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide assay showed that baicalin significantly inhibited cell proliferation in a dose-dependent manner, while flow cytometric analysis demonstrated that baicalin could induce apoptosis, also in a dose-dependent manner.Moreover, baicalin up-regulated the expression of caspase-3, caspase-9, and B cell lymphoma(Bcl-2)-associated X protein and down-regulated the expression of Bcl-2 at both the m RNA and protein level.CONCLUSION:Baicalin has potential as a therapeutic agent for gastric cancer by inducing apoptosis in cancer cells. 展开更多
关键词 BAICALIN Stomach neoplasms Apoptosis lymphoma b-cell Bcl-2-associated x protein CASPASES EFFECTOR
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Effect of Icariin on apoptosis and expression of Fas,Fas ligand,B cell lymphoma,and Bcl-2-associated X protein in CD4+ T lymphocytes from patients with ankylosing spondylitis 被引量:1
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作者 Wang Hailong Jiang Quan Feng Xinghua 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2017年第2期207-213,共7页
OBJECTIVE:To investigate the effects of icariin on apoptosis and the expression of Fas, Fas ligand(Fas L), B cell lymphoma(Bcl-2), and Bcl-2-associated X protein(Bax) in CD4+ T lymphocytes from patients with ankylosin... OBJECTIVE:To investigate the effects of icariin on apoptosis and the expression of Fas, Fas ligand(Fas L), B cell lymphoma(Bcl-2), and Bcl-2-associated X protein(Bax) in CD4+ T lymphocytes from patients with ankylosing spondylitis.METHODS:Primary cultures of peripheral blood CD4+ T lymphocytes were established and treated with icariin at high, medium, and low doses(0.5,0.25, and 0.125 mg/mL).Sulfasalazine treated and helthy cells were used as controls.Apoptosis of treated cells was determined by flow cytometry.Reverse transcription polymerase chain reaction and enzyme-linked immunosorbent assays were used to determine the effects of icariin on the expression of Fas, Fas L, Bcl-2, and Bax.The activity of caspase 8 and caspase 3 was determined by a colorimetric assay.RESULTS:The m RNA and protein expression of Fas,and activity of caspase 8 and caspase 3 in CD4+ T lymphocytes were increased by icariin(P < 0.05).Conversely, the m RNA and protein expression of Bcl-2 was decreased(P < 0.05).The expression of Fas L and Bax were not significantly different between groups.The proapoptotic effects of icariin were dose-dependent.CONCLUSION:Icariin induces the apoptosis of CD4 + T cells from patients with AS comparing to normal control.Therefore, the induction of apoptosis may be the likely mechanism of action of icariin's antirheumatics activities. 展开更多
关键词 SPONDYLITIS ANKYLOSING FAS Fas Ligand protein lymphoma b-cell Bcl-2-associated x protein CD4-positive T-lymphocytes APOPTOSIS ICARIIN
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Regulatory Effects of Zuogui Pill on Apoptosis of Follicles in Rats Injured by 60Co-γRays Based on PI3K/Akt/m TOR Signaling Pathway
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作者 Fenqin ZHAO Mingxia AN +4 位作者 Xiaonan DING Jieying LIU Yan ZHAO Zhihui XIE Shuping LI 《Medicinal Plant》 CAS 2022年第5期45-50,58,共7页
[Objectives]To explore the protective effects of Zuogui Pill on ^(60)Co-γ-ray-induced premature aging of rats based on phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin(PI3K/Akt/mTOR)signal... [Objectives]To explore the protective effects of Zuogui Pill on ^(60)Co-γ-ray-induced premature aging of rats based on phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin(PI3K/Akt/mTOR)signaling pathway.[Methods]Sixty sexually mature female SD rats were irradiated with ^(60)Co-γ-ray(6.0 Gy,LD 40)for 24 h at one time.These rats were randomly divided into model group,Progynova group[0.18(g·kg)/d],Progynova[0.09(g·kg)/d]+Zuogui Pill high dose[23.625(g·kg)/d)]group,Zuogui Pill high dose[23.625(g·kg)/d)]group,Zuogui Pill medium dose[9.45(g·kg)/d)]group and Zuogui Pill low dose[4.725(g·kg)/d]group.The administration(once a day)lasted 21 d.The rat serum[follicle-stimulating hormone(FSH),luteinizing hormone(LH)and estradiol(E_(2))]were detected by Enzyme-linked immunosorbent assay(ELISA).The morphological changes of ovary were observed by hematoxylin-eosin(HE)staining.The apoptosis rate of granulosa cells was detected by terminal deoxynucleotidyl transferase(TdT)-mediated dUTP nick-end labeling(TUNEL).The protein expression of phosphorylated(p)-PI3K,p-Akt,p-mTOR,B-cell lymphoma-2(Bcl-2),and Bcl-2-associated X protein(Bax)in ovarian tissues were detected by Western blot.[Results]Compared with the normal group,the model group showed significant increase in the serum FSH(P<0.01),significant decrease in serum E_(2)(P<0.05),and decrease in the number of early follicles and luteum in the ovary(P<0.01).Besides,the apoptosis rate of granulosa cells increased significantly(P<0.01);the expression of p-PI3K,p-Akt,p-mTOR and Bcl-2 in ovarian tissue decreased significantly,while the expression of Bax increased significantly(P<0.01).Compared with the model group,the number of early follicles in the ovary increased and the apoptosis rate of granulosa cells decreased after intervention in each administration group.In addition,the protein expressions of p-PI3K,p-Akt,p-mTOR and Bcl-2 increased,while the expression of Bax decreased,especially in Progynova+Zuogui Pill high dose group,the differences were statistically significant(P<0.05,P<0.01).[Conclusions]Zuogui Pill may protect the radiation-injured ovary through activating the expression of PI3K/Akt/mTOR protein in ovarian tissue,increasing the amount of Bcl-2 protein and inhibiting the expression of Bax protein. 展开更多
关键词 Radiation injury Premature ovarian failure(POF) Zuogui Pill Terminal deoxynucleotidyl transferase(TdT)-mediated dUTP nick-end labeling(TUNEL) Phosphatidylinositol-3-kinases/protein kinase B/mammalian target of rapamycin(PI3K/Akt/mTOR)signaling pathway b-cell lymphoma-2 Bcl-2-associated x protein
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木犀草素对小鼠T淋巴细胞体外增殖及凋亡的作用 被引量:10
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作者 赵长祺 赵耀红 于海龙 《中国实验方剂学杂志》 CAS CSCD 北大核心 2018年第22期133-137,共5页
目的:研究木犀草素对小鼠T淋巴细胞体外增殖及凋亡作用的影响。方法:设置刀豆蛋白A(Con A)组和空白组,设置3个木犀草素药物组,终质量浓度分别为2.5,5,10 mg·L-1,细胞毒性活性检测-8(CCK-8)法检测各组细胞增殖情况,末端脱氧... 目的:研究木犀草素对小鼠T淋巴细胞体外增殖及凋亡作用的影响。方法:设置刀豆蛋白A(Con A)组和空白组,设置3个木犀草素药物组,终质量浓度分别为2.5,5,10 mg·L-1,细胞毒性活性检测-8(CCK-8)法检测各组细胞增殖情况,末端脱氧核苷酸转移酶介导的d UTP缺口末端标记测定法(TUNEL)和Annexin V-FITC/PI双染法检测各组细胞凋亡情况,蛋白免疫印迹法(Western blot)检测各组细胞凋亡通路蛋白B淋巴细胞瘤-2(B-cell lymphoma-2,Bcl-2),Bcl-2相关X蛋白(Bcl-2-associated X protein,Bax)表达水平。结果:CCK-8实验结果显示3个木犀草素药物组细胞数明显低于Con A组和空白组(P〈0.01),差异有统计学意义。TUNEL实验结果显示,Con A组的凋亡细胞数量显著低于3个木犀草素药物组(P〈0.01),差异有统计学意义。流式细胞仪检测结果显示3个木犀草素药物组的细胞凋亡率显著高于Con A组和空白组(P〈0.01),细胞凋亡率随着药物浓度增加而增高,呈明显的量-效关系。Western blot检测结果显示,2.5,5 mg·L-1木犀草素药物组中Bcl-2表达量高于对照组,Bax表达量低于对照组;10 mg·L-1药物组中Bcl-2表达量低于对照组,Bax表达量高于对照组。结论:2.5,5,10 mg·L-1木犀草素能够抑制T淋巴细胞增殖,能够诱导T淋巴细胞凋亡,10 mg·L-1木犀草素可能主要通过下调Bcl-2,上调Bax影响线粒体凋亡通路诱导细胞凋亡,2.5,5 mg·L-1木犀草素可能通过其他通路诱导细胞凋亡。 展开更多
关键词 木犀草素 T淋巴细胞 凋亡 B淋巴细胞瘤-2(b-cell lymphoma-2 Bcl-2) Bcl-2相关x蛋白(Bcl-2-associated x protein Bax)
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