Regulation of telomerase alternative splicing: a target for chemotherapy.
Regulation of telomerase alternative splicing: a target for chemotherapy.
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DOI:
10.1016/j.celrep.2013.03.011
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发表时间:
2013-04-25
期刊:
影响因子:
8.8
通讯作者:
Wright WE
中科院分区:
文献类型:
--
作者:
Wong MS;Chen L;Foster C;Kainthla R;Shay JW;Wright WE
Telomerase is present in human cancer cells but absent in most somatic tissues. The mRNA of human telomerase (hTERT) is alternatively spliced into mostly non-functional products. We sought to understand splicing so we could decrease functional splice isoforms to reduce telomerase activity to complement direct enzyme inhibition. Unexpectedly, minigenes containing hTERT exons 5–10 flanked by 150–300bp intronic sequences did not produce alternative splicing. A 1.1kb region of 38bp repeats ~2kb from the exon 6/intron junction restored exclusion of exons 7/8. An element within intron 8, also >1kb from intron/exon junctions, modulated this effect. Transducing an oligonucleotide complementary to this second element increased non-functional hTERT mRNA from endogenous telomerase. These results demonstrate the potential of manipulating hTERT splicing for both chemotherapy and regenerative medicine, and provide the first specific sequences deep within introns that regulate alternative splicing in mammalian cells by mechanisms other than introducing cryptic splice sites.
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DOI:
10.1016/0921-8734(91)90018-7
发表时间:
1991-03-01
期刊:
MUTATION RESEARCH
影响因子:
--
作者:
HARLEY, CB
通讯作者:
HARLEY, CB
影响因子:
8
作者:
Leem, SH;Londoño-Vallejo, JA;Larionov, V
通讯作者:
Larionov, V
影响因子:
5.6
作者:
LEVY, MZ;ALLSOPP, RC;HARLEY, CB
通讯作者:
HARLEY, CB
影响因子:
11.2
作者:
Joseph, Immanual;Tressler, Robert;Go, Ning F.
通讯作者:
Go, Ning F.
影响因子:
14.9
作者:
Garcia, Christine Kim;Wright, Woodring E;Shay, Jerry W
通讯作者:
Shay, Jerry W