Regulation of the apolipoprotein gene cluster by a long noncoding RNA.

Regulation of the apolipoprotein gene cluster by a long noncoding RNA.
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DOI:
10.1016/j.celrep.2013.12.015
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发表时间:
2014-01-16
期刊:
影响因子:
8.8
通讯作者:
Wahlestedt C
Wahlestedt C
中科院分区:
生物学1区
文献类型:
--
作者:
Halley P;Kadakkuzha BM;Faghihi MA;Magistri M;Zeier Z;Khorkova O;Coito C;Hsiao J;Lawrence M;Wahlestedt C

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Apolipoprotein A-1 (APOA1) is the major protein component of high-density lipoprotein (HDL) in plasma. We have identified an endogenously expressed long non-coding natural antisense transcript, APOA1-AS, which acts as a negative transcriptional regulator of APOA1, both in vitro and in vivo. Inhibition of APOA1-AS in cultured cells resulted in the increased expression of APOA1, and two neighboring genes in the APO cluster. Chromatin immunoprecipitation (ChIP) analyses of a ~50Kb chromatin region flanking the APOA1 gene demonstrated that APOA1-AS can modulate distinct histone methylation patterns that mark active and/or inactive gene expression, through the recruitment of histone-modifying enzymes. Targeting APOA1-AS using short antisense oligonucleotides also enhanced APOA1 expression in both human and monkey liver cells, and induced an increase in hepatic RNA and protein expression in African green monkeys. The results presented here further highlight the significant local modulatory effects of long non-coding antisense RNAs, and demonstrate the therapeutic potential of manipulating the expression of these transcripts both in vitro and in vivo.
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