Endoplasmic Reticulum morphological regulation by RTN4/NOGO modulates neuronal regeneration by curbing luminal transport
Endoplasmic Reticulum morphological regulation by RTN4/NOGO modulates neuronal regeneration by curbing luminal transport
复制标题
RTN4/NOGO 的内质网形态调节通过抑制管腔运输来调节神经元再生
DOI:
--
复制
发表时间:
2021
期刊:
影响因子:
--
通讯作者:
E. Avezov
中科院分区:
文献类型:
--
作者:
Tasuku Konno;P. Parutto;David M. D. Bailey;V. Davì;Cecile C. Crapart;M. A. Awadelkareem;Colin Hockings;Aidan I. Brown;Katherine M. Xiang;Anamika Agrawal;Joseph E. Chambers;M. V. Werp;Katherine Koning;E. Metzakopian;L. Westrate;Elena F. Koslover;E. Avezov
Cell and tissue functions rely on an elaborate intracellular transport system responsible for distributing bioactive molecules with high spatiotemporal accuracy. The tubular network of the Endoplasmic Reticulum (ER) constitutes a system for the delivery of luminal solutes it stores, including Ca2+, across the cell periphery. The physical nature and factors underlying the ER’s functioning as a fluidics system are unclear. Using an improved ER transport visualisation methodology combined with optogenetic Ca2+ dynamics imaging, we observed that ER luminal transport is modulated by natural ER tubule narrowing and dilation, directly proportional to the amount of an ER membrane morphogen, Reticulon 4 (RTN4). Consequently, the ER morphoregulatory effect of RTN4 defines ER’s capacity for peripheral Ca2+ delivery and thus controls axonogenesis. Excess RTN4 limited ER luminal transport, Ca2+ release and iPSC-derived cortical neurons’ axonal extension, while RTN4 elimination reversed the effects. Summary Intracellular transport through the lumen of the ER network is modulated through narrowing/dilation of ER tubules by a membrane morphogen – RTN4, a process controlling axonogenesis by limiting the delivery of ER-stored Ca2+.
影响因子:
48
作者:
Berg, Stuart;Kutra, Dominik;Kreshuk, Anna
通讯作者:
Kreshuk, Anna
影响因子:
7.7
作者:
Zhang, Xiaoguo;Ding, Xinxin;Otegui, Marisa S.
通讯作者:
Otegui, Marisa S.
影响因子:
11.8
作者:
Wu H;Voeltz GK
通讯作者:
Voeltz GK