OBJECTIVE:To study on effects of Lichong decoction on expression of apoptosis-controlling genes,Bcl-2 and Bcl-2-associated X protein(Bax) mRNAs in hysteromyoma tissue of the hysteromyoma model rat.METHODS:Fifty Wistar...OBJECTIVE:To study on effects of Lichong decoction on expression of apoptosis-controlling genes,Bcl-2 and Bcl-2-associated X protein(Bax) mRNAs in hysteromyoma tissue of the hysteromyoma model rat.METHODS:Fifty Wistar female rats were randomly divided into a normal group,a model group,a Lichong decoction group,a Guizifuling capsule group and a Mifepristone group.The hysteromyoma rat model was established by intraperitoneal injection of exogenous estrin and progestogens.Pathological examination of uterine tissue,uterine coefficient and uterine transverse diameter were made under optic microscope and expressions of Bcl-2 and Bax mRNAs in uterine tissue in the groups were detected with real-time fluorescent quantitative polymerase chain reaction(PCR) technique.RESULTS:After treatment,under microscope it was found that in the Lichong decoction group myometrium thinned,muscle fiber slightly overgrowth or long and thin,regular arrangement,inserting phenomenon of inner circular muscle and external longitudinal muscle was occasionally or not seen in the Lichong decoction group.The uterine coefficient and the uterine transverse diameter significantly decreased(P<0.01),and Bcl-2 mRNA expression significantly decreased(P<0.01) and Bax mRNA expression significantly increased in hysteromyoma tissue(P<0.01) in the Lichong decoction group as compared with the model group.CONCLUSION:Therapeutic effects of Lichong decoction on hysteromyoma is related with decrease of Bcl-2 mRNA expression and increase of Bax mRNA expression.展开更多
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
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
目的观察昆母汤醇提液(KMT)对人类风湿关节炎成纤维样滑膜细胞(RA-FLS)B淋巴细胞瘤-2基因(bcl-2)、bcl-2相关X蛋白(bax)m RNA及蛋白的影响,探讨昆母汤治疗RA的部分作用机制。方法滑膜组织取自行关节置换术或关节镜检查术的8例活动性类...目的观察昆母汤醇提液(KMT)对人类风湿关节炎成纤维样滑膜细胞(RA-FLS)B淋巴细胞瘤-2基因(bcl-2)、bcl-2相关X蛋白(bax)m RNA及蛋白的影响,探讨昆母汤治疗RA的部分作用机制。方法滑膜组织取自行关节置换术或关节镜检查术的8例活动性类风湿关节炎(RA)患者,分离出FLS并进行原代培养,用逆转录-聚合酶链反应(RT-PCR)观察bax、bcl-2 m RNA表达的变化,采用酶联免疫吸附测定(ELISA)法检测bax、bcl-2蛋白含量的变化。结果与肿瘤坏死因子-α(TNF-α)组比较,KMT高剂量组可以明显促进bax m RNA表达,明显抑制bcl-2 m RNA表达,且bax m RNA/bcl-2 m RNA比值明显提高(P<0.05,P<0.01);KMT中、高剂量组可以提高bax蛋白含量,各剂量组均可降低bcl-2蛋白含量,bax/bcl-2的蛋白比值明显提高(P<0.05,P<0.01),且有一定的剂量依赖性。结论昆母汤可能通过抑制bcl-2的表达,同时促进bax的表达,调节bax/bcl-2比值来发挥对RA-FLS的促凋亡作用,具有治疗RA的潜在价值。展开更多
基金Supported by Beijing City Natural Science Fund (No.7082015)National Natural Science Fund (No. 81073096)"Middle-young Aged Core Talent Cultural Plant" of Beijing City University Talent Strengthening Education Plant (No.PHR201008403)
文摘OBJECTIVE:To study on effects of Lichong decoction on expression of apoptosis-controlling genes,Bcl-2 and Bcl-2-associated X protein(Bax) mRNAs in hysteromyoma tissue of the hysteromyoma model rat.METHODS:Fifty Wistar female rats were randomly divided into a normal group,a model group,a Lichong decoction group,a Guizifuling capsule group and a Mifepristone group.The hysteromyoma rat model was established by intraperitoneal injection of exogenous estrin and progestogens.Pathological examination of uterine tissue,uterine coefficient and uterine transverse diameter were made under optic microscope and expressions of Bcl-2 and Bax mRNAs in uterine tissue in the groups were detected with real-time fluorescent quantitative polymerase chain reaction(PCR) technique.RESULTS:After treatment,under microscope it was found that in the Lichong decoction group myometrium thinned,muscle fiber slightly overgrowth or long and thin,regular arrangement,inserting phenomenon of inner circular muscle and external longitudinal muscle was occasionally or not seen in the Lichong decoction group.The uterine coefficient and the uterine transverse diameter significantly decreased(P<0.01),and Bcl-2 mRNA expression significantly decreased(P<0.01) and Bax mRNA expression significantly increased in hysteromyoma tissue(P<0.01) in the Lichong decoction group as compared with the model group.CONCLUSION:Therapeutic effects of Lichong decoction on hysteromyoma is related with decrease of Bcl-2 mRNA expression and increase of Bax mRNA expression.
基金Supported by the Natural Science Foundation of Gansu Province(No.148RJZA073)the Health Industry Scientific Research Project of Gansu Province(No.GWGL 2013-40)the Openning Plan Project of Key Laboratory for Transfer of Dunhuang Medicine at the Provincial and Ministerial Level(No.DHYX1213-008)
文摘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.
基金Supported by the Fundamental Research Funds for the Central Public Welfare Research Institutes:Pharmacogenomics of Tripterygium wilfordii Hook F response and liver toxic reaction in Rheumatoid Arthritis(No.ZZ0708079)the Fundamental Research Funds for the Central Public Welfare Research Institutes Pharmacogenomics of Tripterygium wilfordii Hook F response reaction in Rheumatoid Arthritis(No.31470962)
文摘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.
文摘目的观察昆母汤醇提液(KMT)对人类风湿关节炎成纤维样滑膜细胞(RA-FLS)B淋巴细胞瘤-2基因(bcl-2)、bcl-2相关X蛋白(bax)m RNA及蛋白的影响,探讨昆母汤治疗RA的部分作用机制。方法滑膜组织取自行关节置换术或关节镜检查术的8例活动性类风湿关节炎(RA)患者,分离出FLS并进行原代培养,用逆转录-聚合酶链反应(RT-PCR)观察bax、bcl-2 m RNA表达的变化,采用酶联免疫吸附测定(ELISA)法检测bax、bcl-2蛋白含量的变化。结果与肿瘤坏死因子-α(TNF-α)组比较,KMT高剂量组可以明显促进bax m RNA表达,明显抑制bcl-2 m RNA表达,且bax m RNA/bcl-2 m RNA比值明显提高(P<0.05,P<0.01);KMT中、高剂量组可以提高bax蛋白含量,各剂量组均可降低bcl-2蛋白含量,bax/bcl-2的蛋白比值明显提高(P<0.05,P<0.01),且有一定的剂量依赖性。结论昆母汤可能通过抑制bcl-2的表达,同时促进bax的表达,调节bax/bcl-2比值来发挥对RA-FLS的促凋亡作用,具有治疗RA的潜在价值。
