Abstract:
:Glioblastoma multiforme (GBM) is among the most aggressive of human cancers. Although differentiation therapy has been proposed as a potential approach to treat GBM, the mechanisms of induced differentiation remain poorly defined. Here, we established an induced differentiation model of GBM using cAMP activators that specifically directed GBM differentiation into astroglia. Transcriptomic and proteomic analyses revealed that oxidative phosphorylation and mitochondrial biogenesis are involved in induced differentiation of GBM. Dibutyryl cyclic AMP (dbcAMP) reverses the Warburg effect, as evidenced by increased oxygen consumption and reduced lactate production. Mitochondrial biogenesis induced by activation of the CREB-PGC1α pathway triggers metabolic shift and differentiation. Blocking mitochondrial biogenesis using mdivi1 or by silencing PGC1α abrogates differentiation; conversely, overexpression of PGC1α elicits differentiation. In GBM xenograft models and patient-derived GBM samples, cAMP activators also induce tumor growth inhibition and differentiation. Our data show that mitochondrial biogenesis and metabolic switch to oxidative phosphorylation drive the differentiation of tumor cells.
journal_name
Cell Repjournal_title
Cell reportsauthors
Xing F,Luan Y,Cai J,Wu S,Mai J,Gu J,Zhang H,Li K,Lin Y,Xiao X,Liang J,Li Y,Chen W,Tan Y,Sheng L,Lu B,Lu W,Gao M,Qiu P,Su X,Yin W,Hu J,Chen Z,Sai K,Wang J,Chen F,Chen Y,Zhu S,Liu D,Cheng S,Xie Zdoi
10.1016/j.celrep.2016.12.037subject
Has Abstractpub_date
2017-01-10 00:00:00pages
468-481issue
2issn
2211-1247pii
S2211-1247(16)31742-9journal_volume
18pub_type
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