The Atr-Chek1 pathway inhibits axon regeneration in response to Piezo-dependent mechanosensation.
The Atr-Chek1 pathway inhibits axon regeneration in response to Piezo-dependent mechanosensation.
复制标题
ATR-CHEK1途径响应压电依赖性机械敏,抑制轴突再生。
DOI:
10.1038/s41467-021-24131-7
复制
发表时间:
2021-06-22
影响因子:
16.6
通讯作者:
Song Y
中科院分区:
文献类型:
--
作者:
Li F;Lo TY;Miles L;Wang Q;Noristani HN;Li D;Niu J;Trombley S;Goldshteyn JI;Wang C;Wang S;Qiu J;Pogoda K;Mandal K;Brewster M;Rompolas P;He Y;Janmey PA;Thomas GM;Li S;Song Y
Atr is a serine/threonine kinase, known to sense single-stranded DNA breaks and activate the DNA damage checkpoint by phosphorylating Chek1, which inhibits Cdc25, causing cell cycle arrest. This pathway has not been implicated in neuroregeneration. We show that in Drosophila sensory neurons removing Atr or Chek1, or overexpressing Cdc25 promotes regeneration, whereas Atr or Chek1 overexpression, or Cdc25 knockdown impedes regeneration. Inhibiting the Atr-associated checkpoint complex in neurons promotes regeneration and improves synapse/behavioral recovery after CNS injury. Independent of DNA damage, Atr responds to the mechanical stimulus elicited during regeneration, via the mechanosensitive ion channel Piezo and its downstream NO signaling. Sensory neuron-specific knockout of Atr in adult mice, or pharmacological inhibition of Atr-Chek1 in mammalian neurons in vitro and in flies in vivo enhances regeneration. Our findings reveal the Piezo-Atr-Chek1-Cdc25 axis as an evolutionarily conserved inhibitory mechanism for regeneration, and identify potential therapeutic targets for treating nervous system trauma. The Atr-Check1 pathway is involved in cell cycle and the DNA damage response. Here, the authors show that the Atr-Check1 pathway can inhibit axon regeneration in response to Piezo-mediated mechanosensation, affecting functional recovery.
登录
查看更多内容
影响因子:
3
作者:
Broadie, Kendal;Baumgartner, Stefan;Prokop, Andreas
通讯作者:
Prokop, Andreas
影响因子:
5.7
作者:
Blanquie, Oriane;Bradke, Frank
通讯作者:
Bradke, Frank
DOI:
10.1073/pnas.1412740111
发表时间:
2014-11-11
影响因子:
11.1
作者:
Blumenthal, Nils R.;Hermanson, Ola;Shastri, V. Prasad
通讯作者:
Shastri, V. Prasad
影响因子:
16.2
作者:
Chen, Xin;Wanggou, Siyi;Huang, Xi
通讯作者:
Huang, Xi
影响因子:
3.7
作者:
Flegel C;Schöbel N;Altmüller J;Becker C;Tannapfel A;Hatt H;Gisselmann G
通讯作者:
Gisselmann G