Hypoxia-mediated mitochondria apoptosis inhibition induces temozolomide treatment resistance through miR-26a/Bad/Bax axis.
Hypoxia-mediated mitochondria apoptosis inhibition induces temozolomide treatment resistance through miR-26a/Bad/Bax axis.
复制标题
缺氧介导的线粒体凋亡抑制通过 miR-26a/Bad/Bax 轴诱导替莫唑胺治疗耐药
DOI:
10.1038/s41419-018-1176-7
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发表时间:
2018-11-13
影响因子:
9
通讯作者:
Jiang BH
中科院分区:
文献类型:
--
作者:
Ge X;Pan MH;Wang L;Li W;Jiang C;He J;Abouzid K;Liu LZ;Shi Z;Jiang BH
Glioblastoma multiforme (GBM) is one of the most hypoxic tumors of the central nervous system. Although temozolomide (TMZ) is an effective clinical agent in the GBM therapy, the hypoxic microenvironment remains a major barrier in glioma chemotherapy resistance, and the underlying mechanisms are poorly understood. Here, we find hypoxia can induce the protective response to mitochondrion via HIF-1α-mediated miR-26a upregulation which is associated with TMZ resistance in vitro and in vivo. Further, we demonstrated that HIF-1α/miR-26a axis strengthened the acquisition of TMZ resistance through prevention of Bax and Bad in mitochondria dysfunction in GBM. In addition, miR-26a expression levels negatively correlate with Bax, Bad levels, and GBM progression; but highly correlate with HIF-1α levels in clinical cancer tissues. These findings provide a new link in the mechanistic understanding of TMZ resistance under glioma hypoxia microenvironment, and consequently HIF-1α/miR-26a/Bax/Bad signaling pathway as a promising adjuvant therapy for GBM with TMZ.
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DOI:
10.15698/mic2016.12.547
发表时间:
2016-12-05
期刊:
Microbial cell (Graz, Austria)
影响因子:
--
作者:
Garenne D;Renault TT;Manon S
通讯作者:
Manon S
影响因子:
4.9
作者:
Ananta, Jeyarama S.;Paulmurugan, Ramasamy;Massoud, Tank F.
通讯作者:
Massoud, Tank F.
影响因子:
4.7
作者:
Gielen, Paul R.;Aftab, Qurratulain;Sin, Wun Chey
通讯作者:
Sin, Wun Chey
影响因子:
1.9
作者:
Quick, Allison;Patel, Disha;Mehta, Minesh
通讯作者:
Mehta, Minesh
影响因子:
5.3
作者:
Martorell, Lluis;Gentile, Maurizio;Martinez-Gonzalez, Jose
通讯作者:
Martinez-Gonzalez, Jose