Role of BNIP3 and NIX in cell death, autophagy, and mitophagy.

Role of BNIP3 and NIX in cell death, autophagy, and mitophagy.
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DOI:
10.1038/cdd.2009.16
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发表时间:
2009-07
影响因子:
12.4
通讯作者:
Ney, P. A.
Ney, P. A.
中科院分区:
生物学1区
文献类型:
--
作者:
Zhang, J.;Ney, P. A.

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BNIP3和Nix是与BH3-Only家族相关的蛋白质,可以诱导细胞死亡和自噬。BNIP3和NIX与它们诱导细胞死亡的能力一致,与癌症和心脏病的发病机制有关。在肿瘤细胞中,BNIP3和NIX的表达受缺氧的调节,BNIP3或NIX表达的失控与肿瘤的生长有关。在心肌中,BNIP3和NIX分别受低氧和GαQ依赖信号的调节,其表达与心肌功能下降有关。BNIP3和NIX除了在细胞死亡中发挥作用外,还与自噬的诱导有关。在红系细胞中,NIX是一种特殊类型的自噬所必需的,这种自噬以线粒体为目标来消除(有丝分裂)。同样,BNIP3调节有丝分裂对低氧的反应。在这篇综述中,我们将讨论BNIP3和NIX诱导细胞死亡和有丝分裂的可能机制。我们还将考虑细胞死亡途径和自噬在发育和动态平衡中的潜在关系。
BNIP3 and NIX are proteins related to the BH3-only family, which induce both cell death and autophagy. Consistent with their ability to induce cell death, BNIP3 and NIX are implicated in the pathogenesis of cancer and heart disease. In tumor cells, BNIP3 and NIX are regulated by hypoxia, and the deregulation of BNIP3 or NIX expression is associated with tumor growth. In heart muscle, BNIP3 and NIX are regulated by hypoxia and Gαq-dependent signaling, respectively, and their expression is associated with decreased myocardial function. Apart from their role in cell death, BNIP3 and NIX are also implicated in the induction of autophagy. In erythroid cells, NIX is required for a specialized type of autophagy that targets mitochondria for elimination (mitophagy). Similarly, BNIP3 regulates mitophagy in response to hypoxia. In this review, we will discuss possible mechanisms by which BNIP3 and NIX induce cell death and mitophagy. We will also consider the potential relationship between cell death pathways and autophagy in development and homeostasis.
用电子显微镜研究的新生小鼠肾脏中的细胞分化。
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