Bidirectional control of mRNA translation and synaptic plasticity by the cytoplasmic polyadenylation complex.
Bidirectional control of mRNA translation and synaptic plasticity by the cytoplasmic polyadenylation complex.
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DOI:
10.1016/j.molcel.2012.05.016
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发表时间:
2012-07-27
期刊:
影响因子:
16
通讯作者:
Richter, Joel D.
中科院分区:
文献类型:
--
作者:
Udagawa, Tsuyoshi;Swanger, Sharon A.;Takeuchi, Koichi;Kim, Jong Heon;Nalavadi, Vijayalaxmi;Shin, Jihae;Lorenz, Lori J.;Zukin, R. Suzanne;Bassell, Gary J.;Richter, Joel D.
Translational control of mRNAs in dendrites is essential for certain forms of synaptic plasticity and learning and memory. CPEB is an RNA-binding protein that regulates local translation in dendrites. Here, we identify poly(A) polymerase Gld2, deadenylase PARN, and translation inhibitory factor neuroguidin (Ngd) as components of a dendritic CPEB-associated polyadenylation apparatus. Synaptic stimulation induces phosphorylation of CPEB, PARN expulsion from the ribonucleoprotein complex, and polyadenylation in dendrites. A screen for mRNAs whose polyadenylation is altered by Gld2 depletion identified >100 transcripts including one encoding NR2A, an NMDA receptor subunit. shRNA depletion studies demonstrate that Gld2 promotes and Ngd inhibits dendritic NR2A expression. Finally, shRNA-mediated depletion of Gld2 in vivo attenuates protein synthesis-dependent long-term potentiation (LTP) at hippocampal dentate gyrus synapses; conversely Ngd depletion enhances LTP. These results identify a pivotal role for polyadenylation and the opposing effects of Gld2 and Ngd in hippocampal synaptic plasticity.
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影响因子:
16.2
作者:
Edbauer, Dieter;Neilson, Joel R.;Foster, Kelly A.;Wang, Chi-Fong;Seeburg, Daniel P.;Batterton, Matthew N.;Tada, Tomoko;Dolan, Bridget M.;Sharp, Phillip A.;Sheng, Morgan
通讯作者:
Sheng, Morgan
影响因子:
16.2
作者:
Gray JA;Shi Y;Usui H;During MJ;Sakimura K;Nicoll RA
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Nicoll RA
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56.9
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Huber, KM;Kayser, MS;Bear, MF
通讯作者:
Bear, MF
影响因子:
56.9
作者:
Kang, HJ;Schuman, EM
通讯作者:
Schuman, EM
影响因子:
64.8
作者:
Burns, David M.;D'Ambrogio, Andrea;Nottrott, Stephanie;Richter, Joel D.
通讯作者:
Richter, Joel D.