Small noncoding vault RNA modulates synapse formation by amplifying MAPK signaling.
Small noncoding vault RNA modulates synapse formation by amplifying MAPK signaling.
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DOI:
10.1083/jcb.201911078
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发表时间:
2021-02-01
期刊:
影响因子:
--
通讯作者:
Araki T
中科院分区:
文献类型:
--
作者:
Wakatsuki S;Takahashi Y;Shibata M;Adachi N;Numakawa T;Kunugi H;Araki T
The small noncoding vault RNA is a component of the vault complex, a ribonucleoprotein complex found in most eukaryotes. Wakatsuki et al. show that vault RNA functions as a riboregulator of synaptogenesis by modulating the MAPK signaling pathway in neurons. The small noncoding vault RNA (vtRNA) is a component of the vault complex, a ribonucleoprotein complex found in most eukaryotes. Emerging evidence suggests that vtRNAs may be involved in the regulation of a variety of cellular functions when unassociated with the vault complex. Here, we demonstrate a novel role for vtRNA in synaptogenesis. Using an in vitro synapse formation model, we show that murine vtRNA (mvtRNA) promotes synapse formation by modulating the MAPK signaling pathway. mvtRNA is transported to the distal region of neurites as part of the vault complex. Interestingly, mvtRNA is released from the vault complex in the neurite by a mitotic kinase Aurora-A–dependent phosphorylation of MVP, a major protein component of the vault complex. mvtRNA binds to and activates MEK1 and thereby enhances MEK1-mediated ERK activation in neurites. These results suggest the existence of a regulatory mechanism of the MAPK signaling pathway by vtRNAs as a new molecular basis for synapse formation.
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影响因子:
8.8
作者:
Hussain S;Sajini AA;Blanco S;Dietmann S;Lombard P;Sugimoto Y;Paramor M;Gleeson JG;Odom DT;Ule J;Frye M
通讯作者:
Frye M
影响因子:
4.8
作者:
Kolli, S;Zito, CI;Bennett, AM
通讯作者:
Bennett, AM
影响因子:
4.5
作者:
Lee, Kwanbok;Kunkeaw, Nawapol;Lee, Yong Sun
通讯作者:
Lee, Yong Sun
影响因子:
13.9
作者:
Barnes AP;Polleux F
通讯作者:
Polleux F
DOI:
10.1083/jcb.103.3.699
发表时间:
1986-09
期刊:
The Journal of cell biology
影响因子:
--
作者:
Kedersha NL;Rome LH
通讯作者:
Rome LH