期刊文献+

三氧化二砷诱导骨髓增生异常综合征SKM-1细胞凋亡机制的研究 被引量:6

Study on the mechanism of Arsenic Trioxide inducing the apoptosis of myelodysplastic syndrome cell line SKM-1
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摘要 目的探讨三氧化二砷(AS2O3)诱导骨髓增生异常综合征(MDS)SKM-1细胞的凋亡机制。方法将AS2O3与SKM-1细胞共育,采用形态学观察细胞生长,流式细胞术检测细胞凋亡,RT-PCR技术检测Bcl-2、Bax、caspase-3mRNA表达。结果 0.25、0.50μmol/L AS2O3对SKM-1细胞无明显促凋亡作用(P>0.05),2.00、8.00、32.00μmol/L AS2O3对SKM-1细胞有明显促凋亡作用,随着AS2O3浓度增加及作用时间延长,凋亡发生率增加(P<0.01),抗凋亡基因Bcl-2mRNA表达下降(Ρ<0.01),促凋亡基因Bax、caspase-3mRNA表达增加(P<0.01,P<0.05)。结论 2、8、32μmol/L AS2O3对SKM-1细胞有促凋亡作用,可能通过下调Bcl-2、上调Bax及caspase-3基因表达参与其中。 Objective To investigate the mechanism of AS2 O3 inducing the apoptosis of myelodysplastic syndrome(MDS) cell line SKM-1 .Methods SKM-1 cells were incubated with AS2 O3 ,and then the cellular morphology was observed ,flow cytometry was used to determine the apoptosis ,RT-PCR was used to detect the expressions of Bcl-2 ,Bax and caspase-3 mRNA .Results 0 .25、0 .50 μmol/L AS2 O3 could not markedly induce the apoptosis of SKM-1 cells (P〉0 .05) .But 2 .00、8 .00、32 .00 μmol/L of AS2 O3 could obviously promote the apoptosis of SKM-1 cells .With the increase of the acting time and concentration of AS2 O3 ,the apoptosis rate increased ,too(P〈0 .01) ,the expressions of anti-apoptotic gene Bcl-2 mRNA decreased (P〈0 .01) ,the expressions of promoting apoptosis gene Bax and caspase-3 mRNA increased (P〈0 .01 ,P〈0 .05) .Conclusion 2 .00、8 .00、32 .00 μmol/L of AS2O3 may promote the apoptosis of SKM-1 cells through down-regulating the expression of Bcl-2 gene and up-regulating the ex-pressions of Bax and caspase-3 genes .
出处 《重庆医学》 CAS CSCD 北大核心 2014年第29期3897-3900,共4页 Chongqing medicine
基金 江苏省中医药局基金资助项目(LZ09103) 无锡市中医药局基金资助项目(ZZD0802)
关键词 骨髓增生异常综合征 三氧化二砷 细胞凋亡 BCL-2 BAX CASPASE-3 myelodysplastic syndromes AS2 03 apoptosis Bcl-2 Bax caspase-3
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同被引文献76

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