LRIG1 is a gatekeeper to exit from quiescence in adult neural stem cells.
LRIG1 is a gatekeeper to exit from quiescence in adult neural stem cells.
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LRIG1是成体神经干细胞从静止状态退出的看门人。
DOI:
10.1038/s41467-021-22813-w
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发表时间:
2021-05-10
影响因子:
16.6
通讯作者:
Pollard SM
中科院分区:
文献类型:
--
作者:
Marqués-Torrejón MÁ;Williams CAC;Southgate B;Alfazema N;Clements MP;Garcia-Diaz C;Blin C;Arranz-Emparan N;Fraser J;Gammoh N;Parrinello S;Pollard SM
Adult neural stem cells (NSCs) must tightly regulate quiescence and proliferation. Single-cell analysis has suggested a continuum of cell states as NSCs exit quiescence. Here we capture and characterize in vitro primed quiescent NSCs and identify LRIG1 as an important regulator. We show that BMP-4 signaling induces a dormant non-cycling quiescent state (d-qNSCs), whereas combined BMP-4/FGF-2 signaling induces a distinct primed quiescent state poised for cell cycle re-entry. Primed quiescent NSCs (p-qNSCs) are defined by high levels of LRIG1 and CD9, as well as an interferon response signature, and can efficiently engraft into the adult subventricular zone (SVZ) niche. Genetic disruption of Lrig1 in vivo within the SVZ NSCs leads an enhanced proliferation. Mechanistically, LRIG1 primes quiescent NSCs for cell cycle re-entry and EGFR responsiveness by enabling EGFR protein levels to increase but limiting signaling activation. LRIG1 is therefore an important functional regulator of NSC exit from quiescence. How neural stem cells can transition between states of proliferation and quiescence is unclear. Here, the authors identify Lrig1 as a specific marker for the primed quiescent state and demonstrate that Lrig1 maintains cells in a quiescent state via modulation of the EGFR pathway.
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影响因子:
4.6
作者:
Daynac M;Morizur L;Chicheportiche A;Mouthon MA;Boussin FD
通讯作者:
Boussin FD
影响因子:
7.7
作者:
Dewari, Pooran Singh;Southgate, Benjamin;Pollard, Steven M.
通讯作者:
Pollard, Steven M.
DOI:
10.1073/pnas.1715911114
发表时间:
2018-01-23
影响因子:
11.1
作者:
Basak, Onur;Krieger, Teresa G.;Clevers, Hans
通讯作者:
Clevers, Hans
影响因子:
9.8
作者:
通讯作者:
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DOI:
10.1038/nrm3591
发表时间:
2013-06
期刊:
Nature reviews. Molecular cell biology
影响因子:
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作者:
通讯作者:
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