Lymphocyte Fate and Metabolism: A Clonal Balancing Act.

Lymphocyte Fate and Metabolism: A Clonal Balancing Act.
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DOI:
10.1016/j.tcb.2017.07.005
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发表时间:
2017-12
影响因子:
19
通讯作者:
Reiner SL
Reiner SL
中科院分区:
生物学1区
文献类型:
--
作者:
Nish SA;Lin WW;Reiner SL

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激活的淋巴细胞执行克隆平衡行为,产生由于强烈的 PI3K 信号传导而分化的子细胞,以及具有钝化合成代谢信号传导的自我更新的兄弟细胞。不同的细胞合成代谢与分解代谢正在成为几种发育和再生范式的一个特征。新陈代谢可以决定细胞的命运,部分原因是谱系特异性调节因子嵌入在保守代谢开关的电路中。再生分裂过程中 PI3K 信号传导的不平等让人想起非分裂细胞定向运动或极化信息流过程中划分的 PI3K 活性。 PI3K 通路在膜运输、细胞极性、代谢和基因表达中的不同作用可能会共同指导兄弟细胞的盛宴和饥荒,从而实现克隆分化和自我更新。
Activated lymphocytes perform a clonal balancing act, yielding a daughter cell that differentiates owing to intense PI3K signaling, alongside a self-renewing sibling cell with blunted anabolic signaling. Divergent cellular anabolism versus catabolism is emerging as a feature of several developmental and regenerative paradigms. Metabolism can dictate cell fate, in part, because lineage-specific regulators are embedded in the circuitry of conserved metabolic switches. Unequal transmission of PI3K signaling during regenerative divisions is reminiscent of compartmentalized PI3K activity during directed motility or polarized information flow in non-dividing cells. The diverse roles of PI3K pathways in membrane traffic, cell polarity, metabolism, and gene expression may have converged to instruct sibling cell feast and famine, thereby enabling clonal differentiation alongside self-renewal.
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