Targeting the IGF1R Pathway in Breast Cancer Using Antisense lncRNA-Mediated Promoter cis Competition.
Targeting the IGF1R Pathway in Breast Cancer Using Antisense lncRNA-Mediated Promoter cis Competition.
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利用反义 lncRNA 介导的启动子顺式竞争靶向乳腺癌中的 IGF1R 通路
DOI:
10.1016/j.omtn.2018.04.013
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发表时间:
2018-09-07
期刊:
影响因子:
--
通讯作者:
Hu JF
中科院分区:
文献类型:
--
作者:
Pian L;Wen X;Kang L;Li Z;Nie Y;Du Z;Yu D;Zhou L;Jia L;Chen N;Li D;Zhang S;Li W;Hoffman AR;Sun J;Cui J;Hu JF
Aberrant insulin-like growth factor I receptor (IGF1R) signaling pathway serves as a well-established target for cancer drug therapy. The intragenic antisense long noncoding RNA (lncRNA) IRAIN, a putative tumor suppressor, is downregulated in breast cancer cells, while IGF1R is overexpressed, leading to an abnormal IGF1R/IRAIN ratio that promotes tumor growth. To precisely target this pathway, we developed an “antisense lncRNA-mediated intragenic cis competition” (ALIC) approach to therapeutically correct the elevated IGF1R/IRAIN bias in breast cancer cells. We used CRISPR-Cas9 gene editing to target the weak promoter of IRAIN antisense lncRNA and showed that in targeted clones, intragenic activation of the antisense lncRNA potently competed in cis with the promoter of the IGF1R sense mRNA. Notably, the normalization of IGF1R/IRAIN transcription inhibited the IGF1R signaling pathway in breast cancer cells, decreasing cell proliferation, tumor sphere formation, migration, and invasion. Using “nuclear RNA reverse transcription-associated trap” sequencing, we uncovered an IRAIN lncRNA-specific interactome containing gene targets involved in cell metastasis, signaling pathways, and cell immortalization. These data suggest that aberrantly upregulated IGF1R in breast cancer cells can be precisely targeted by cis transcription competition, thus providing a useful strategy to target disease genes in the development of novel precision medicine therapies.
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影响因子:
7
作者:
Harrow J;Frankish A;Gonzalez JM;Tapanari E;Diekhans M;Kokocinski F;Aken BL;Barrell D;Zadissa A;Searle S;Barnes I;Bignell A;Boychenko V;Hunt T;Kay M;Mukherjee G;Rajan J;Despacio-Reyes G;Saunders G;Steward C;Harte R;Lin M;Howald C;Tanzer A;Derrien T;Chrast J;Walters N;Balasubramanian S;Pei B;Tress M;Rodriguez JM;Ezkurdia I;van Baren J;Brent M;Haussler D;Kellis M;Valencia A;Reymond A;Gerstein M;Guigó R;Hubbard TJ
通讯作者:
Hubbard TJ
DOI:
10.1007/s00335-017-9703-x
发表时间:
2017-08
期刊:
Mammalian genome : official journal of the International Mammalian Genome Society
影响因子:
--
作者:
Birling MC;Herault Y;Pavlovic G
通讯作者:
Pavlovic G
DOI:
10.3324/haematol.2009.010785
发表时间:
2010-03-01
期刊:
HAEMATOLOGICA-THE HEMATOLOGY JOURNAL
影响因子:
--
作者:
Chapuis, Nicolas;Tamburini, Jerome;Bouscary, Didier
通讯作者:
Bouscary, Didier
影响因子:
4.6
作者:
Cheng JH;Pan DZ;Tsai ZT;Tsai HK
通讯作者:
Tsai HK
影响因子:
64.8
作者:
通讯作者:
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