ArticleZhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi2015
[Research on multiple myeloma cell apoptosis by inhibition of mTORC2 and chaperon pathways].
Article in Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors at 2 institutions in 1 country.
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Abstract
objectiveTo explore apoptosis of multiple myeloma (MM) cells and its mechanism by the combined inhibition of mTORC2 signaling pathway and heat shock protein 90.
methodsThe effects of Rapamycin, 17-AAG and the combination on proliferation of MM cell lines U266 and KM3 were assessed using MTT at different time points (0, 8, 24, 48 hour). Cell apoptosis and cell cycle distribution were measured by flow cytometry. The specific proteins p-AKT (ser473), p-AKT (thr450), p-S6 (S235/236) and AKT were detected by Western blotting.
resultsRapamycin, 17- AAG and the combination suppressed the proliferation of MM cell lines U266 and KM3, especially the combination of Rapamycin and 17-AAG synergistically inhibited the proliferation (P<0.05); Rapamycin induced G1 arrest both at 24 and 48 hours, 17-AAG also induced G1 arrest, especially at 48 hours (P<0.01); Rapamycin, 17-AAG alone decreased the expression of AKT and induced MM cell apoptosis to some extent (P<0.01); Chronic rapamycin treatment inhibited mTORC2; Inhibition of both mTORC2 and chaper on pathways degraded AKT and induced MM cell apoptosis, which was significantly higher than that of any single agent (P<0.01).
conclusionInhibition of both mTORC2 and chaper on pathways decreased the expression of AKT to induce apoptosis of MM cells in vitro.
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