Elimination of specific miRNAs by naked 14-nt sgRNAs.
Elimination of specific miRNAs by naked 14-nt sgRNAs.
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DOI:
10.1371/journal.pone.0038496
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Nashimoto M
中科院分区:
文献类型:
--
作者:
Takahashi M;Elbarbary RA;Abe M;Sato M;Yoshida T;Yamada Y;Tamura M;Nashimoto M
tRNase ZL-utilizing efficacious gene silencing (TRUE gene silencing) is a newly developed technology to suppress mammalian gene expression. TRUE gene silencing works on the basis of a unique enzymatic property of mammalian tRNase ZL, which is that it can recognize a pre-tRNA-like or micro-pre-tRNA-like complex formed between target RNA and artificial small guide RNA (sgRNA) and can cleave any target RNA at any desired site. There are four types of sgRNA, 5′-half-tRNA, RNA heptamer, hook RNA, and ∼14-nt linear RNA. Here we show that a 14-nt linear-type sgRNA against human miR-16 can guide tRNase ZL cleavage of miR-16 in vitro and can downregulate the miR-16 level in HEK293 cells. We also demonstrate that the 14-nt sgRNA can be efficiently taken up without any transfection reagents by living cells and can exist stably in there for at least 24 hours. The naked 14-nt sgRNA significantly reduced the miR-16 level in HEK293 and HL60 cells. Three other naked 14-nt sgRNAs against miR-142-3p, miR-206, and miR-19a/b are also shown to downregulate the respective miRNA levels in various mammalian cell lines. Our observations suggest that in general we can eliminate a specific cellular miRNA at least by ∼50% by using a naked 14-nt sgRNA on the basis of TRUE gene silencing.
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影响因子:
3.7
作者:
Elbarbary RA;Takaku H;Uchiumi N;Tamiya H;Abe M;Takahashi M;Nishida H;Nashimoto M
通讯作者:
Nashimoto M
影响因子:
14.9
作者:
Nashimoto, M
通讯作者:
Nashimoto, M
DOI:
10.1073/pnas.0806202105
发表时间:
2008-09-02
影响因子:
11.1
作者:
Pichiorri, Flavia;Suh, Sung-Suk;Croce, Carlo M.
通讯作者:
Croce, Carlo M.
影响因子:
14.9
作者:
Nashimoto, M;Geary, S;Kaspar, R
通讯作者:
Kaspar, R
影响因子:
3.8
作者:
GRAHAM, FL;SMILEY, J;NAIRN, R
通讯作者:
NAIRN, R