BNIP3- and BNIP3L-Mediated Mitophagy Promotes the Generation of Natural Killer Cell Memory.

BNIP3- and BNIP3L-Mediated Mitophagy Promotes the Generation of Natural Killer Cell Memory.
复制标题

DOI:
10.1016/j.immuni.2015.07.012
复制
发表时间:
2015-08-18
期刊:
影响因子:
32.4
通讯作者:
Sun JC
Sun JC
中科院分区:
医学1区
文献类型:
--
作者:
O'Sullivan TE;Johnson LR;Kang HH;Sun JC

文献摘要

参考文献

被引文献

相似文献

自然杀伤(NK)细胞是具有适应性免疫特征的先天淋巴细胞,例如克隆扩增、收缩和长寿命“记忆”细胞的产生,这些过程在分子水平上知之甚少。在这里,我们发现,随着增殖的NK细胞在病毒感染过程中积累功能障碍的线粒体,在收缩期诱导了一种保护性的线粒体自噬途径,以活性氧(ROS)依赖的方式促进其存活。在抗病毒反应的收缩-记忆相变期间,抑制雷帕霉素(mTOR)的机制靶点或激活AMP-活化蛋白激酶(AMPK)可通过Atg 3依赖性机制增加自噬活性并增强记忆NK细胞数量。此外,我们证明了线粒体自噬诱导蛋白BCL 2/腺病毒E1 B 19-kDa相互作用蛋白3(BNIP 3)和BNIP 3样蛋白(BNIP 3L)在产生强大的NK细胞记忆中的时间调节作用。因此,我们的研究揭示了这些溶细胞性先天淋巴细胞动态反应过程中线粒体自噬的功能重要性。病毒感染后,大多数效应淋巴细胞发生快速凋亡。然而,目前还不清楚这些细胞的子集如何持续形成免疫记忆。Sun及其同事证明,线粒体自噬在收缩期促进病毒特异性NK细胞的存活,以促进记忆。
Natural killer (NK) cells are innate lymphocytes that possess traits of adaptive immunity, such as clonal expansion, contraction, and generation of long-lived “memory” cells, processes poorly understood at the molecular level. Here, we found that as proliferating NK cells accumulated dysfunctional mitochondria during viral infection, a protective mitophagy pathway was induced during the contraction phase to promote their survival in a reactive oxygen species (ROS)-dependent manner. Inhibition of mechanistic target of rapamycin (mTOR) or activation of AMP-activated protein kinase (AMPK) during the contraction-to-memory phase transition of the antiviral response increased autophagic activity and enhanced memory NK cell numbers through an Atg3-dependent mechanism. Furthermore, we demonstrated a temporally regulated role for mitophagy-inducing proteins BCL2/adenovirus E1B 19-kDa interacting protein 3 (BNIP3) and BNIP3-like (BNIP3L) in the generation of robust NK cell memory. Thus, our study reveals the functional importance of mitophagy during the dynamic response of these cytolytic innate lymphocytes. After viral infection, the majority of effector lymphocytes undergo rapid apoptosis. However, it is unclear how a subset of these cells persist to form immunological memory. Sun and colleagues demonstrate that mitophagy promotes the survival of virus-specific NK cells during the contraction phase to promote memory.
DOI: 10.1038/ni.2876
发表时间: 2014-06
期刊: Nature immunology
影响因子: 30.5
作者:
通讯作者: --
DOI: 10.4049/jimmunol.1303211
发表时间: 2014-05-15
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Hendricks DW;Balfour HH Jr;Dunmire SK;Schmeling DO;Hogquist KA;Lanier LL
通讯作者: Lanier LL
DOI: 10.1038/ncb2152
发表时间: 2011-02
影响因子: 21.3
作者:
通讯作者: --
DOI: 10.4049/jimmunol.181.9.6394
发表时间: 2008-11-01
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Fodil-Cornu N;Lee SH;Belanger S;Makrigiannis AP;Biron CA;Buller RM;Vidal SM
通讯作者: Vidal SM
DOI: 10.1016/j.cell.2014.08.026
发表时间: 2014-09-25
期刊: Cell
影响因子: 64.5
作者:
Karo JM;Schatz DG;Sun JC
通讯作者: Sun JC