The convergence of senescence and nutrient sensing during lymphocyte ageing.

The convergence of senescence and nutrient sensing during lymphocyte ageing.
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DOI:
10.1111/cei.12876
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发表时间:
2017-01
影响因子:
4.6
通讯作者:
Akbar AN
Akbar AN
中科院分区:
医学3区
文献类型:
--
作者:
Akbar AN

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免疫监视需要淋巴细胞的迁移和激活,以诱导增殖和效应器功能。有效的免疫需要向淋巴细胞提供最佳的营养物质。细胞含有营养感应装置,例如5‘-单磷酸腺苷活化蛋白激酶(AMPK),它可以测量细胞内的ATP水平。随着年龄的增长,免疫力会下降,一种可能性是,老化的淋巴细胞中的能量平衡可能会改变。本文综述了最近的数据,证实了淋巴细胞衰老和营养信号通路的趋同,在衰老过程中抑制T细胞和自然杀伤(NK)细胞的功能。值得注意的是,这些途径可以被抑制,以增强这些细胞的活性。
Immunosurveillance requires the migration of lymphocytes and their activation to induce proliferation and effector function. Effective immunity requires an optimal supply of nutrients to lymphocytes. Cells contain nutrient sensing apparatus such as adenosine 5′‐monophosphate‐activated protein kinase (AMPK) that surveys intracellular ATP levels. Immunity declines during ageing and one possibility is that the energy balance may be altered in old lymphocytes. This paper summarizes recent data identifying a convergence of senescence and nutrient signalling pathways in lymphocytes that inhibit both T cell and natural killer (NK) cell function during ageing. Significantly, these pathways can be inhibited to enhance the activity of these cells.
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