Regulatory connection between the expression level of classical protein kinase C and pruning of climbing fibers from cerebellar Purkinje cells
Regulatory connection between the expression level of classical protein kinase C and pruning of climbing fibers from cerebellar Purkinje cells
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经典蛋白激酶C的表达水平与小脑浦肯野细胞攀爬纤维修剪之间的调节联系
DOI:
10.1111/jnc.14239
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发表时间:
2017
影响因子:
4.7
通讯作者:
Hirai Hirokazu
中科院分区:
文献类型:
--
作者:
Takahashi Nobutaka;Shuvaev Anton N.;Konno Ayumu;Matsuzaki Yasunori;Watanave Masashi;Hirai Hirokazu
Cerebellar Purkinje cells (PCs) express two members of the classical protein kinase C (cPKC) subfamily, namely, PKCα and PKCγ. Previous studies on PKCγ knockout (KO) mice have revealed a critical role of PKCγ in the pruning of climbing fibers (CFs) from PCs during development. The question remains as to why only PKCγ and not PKCα is involved in CF synapse elimination from PCs. To address this question, we assessed the expression levels of PKCγ and PKCα in wild‐type (WT) and PKCγ KO PCs using PC‐specific quantitative real‐time reverse transcription‐polymerase chain reaction, western blotting, and immunohistochemical analysis. The results revealed that the vast majority of cPKCs in PCs were PKCγ, whereas PKCα accounted for the remaining minimal fraction. The amount of PKCα was not up‐regulated in PKCγ KO PCs. Lentiviral expression of PKCα in PKCγ KO PCs resulted in a 10‐times increase in the amount of PKCα mRNA in the PKCγ KO PCs, compared to that in WT PCs. Our quantification showed that the expression levels of cPKC mRNA in PKCγ KO PCs increased roughly from 1% to 22% of that in WT PCs solely through PKCα expression. The up‐regulation of PKCα in PKCγ KO PCs significantly rescued the impaired CF synapse elimination. Although both PKCα and PKCγ are capable of pruning supernumerary CF synapses from developing PCs, these results suggest that the expression levels of cPKCs in PKCγ KO PCs are too low for CF pruning.
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影响因子:
5.1
作者:
R. Hawley;F. Lieu;A. Fong;T. Hawley
通讯作者:
R. Hawley;F. Lieu;A. Fong;T. Hawley
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
Hiraoka;K.;Morimoto;Y. V.;Fujii;T.;Miyata;T.;Makino. F.;Minamino;T.;Namba;K.;Kano M.
通讯作者:
Kano M.
DOI:
10.1523/jneurosci.5530-10.2011
发表时间:
2011-10
期刊:
The Journal of Neuroscience
影响因子:
--
作者:
A. Shuvaev;Hajime Horiuchi;T. Seki;H. Goenawan;T. Irie;Akira Iizuka;N. Sakai;H. Hirai
通讯作者:
A. Shuvaev;Hajime Horiuchi;T. Seki;H. Goenawan;T. Irie;Akira Iizuka;N. Sakai;H. Hirai
影响因子:
3.5
作者:
Metzger, F;Kapfhammer, JP
通讯作者:
Kapfhammer, JP
DOI:
--
发表时间:
1989
影响因子:
11.1
作者:
Kohkichi Hosoda;Naoaki Saito;A. Kose;A. Ito;T. Tsujino;K. Ogita;U. Kikkawa;Yoshitaka Ono;Koichi Igarashi;Yasutomi Nishizuka
通讯作者:
Yasutomi Nishizuka