MicroRNA let-7 downregulates STAT3 phosphorylation in pancreatic cancer cells by increasing SOCS3 expression.
MicroRNA let-7 downregulates STAT3 phosphorylation in pancreatic cancer cells by increasing SOCS3 expression.
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DOI:
10.1016/j.canlet.2014.01.020
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发表时间:
2014-05-28
期刊:
影响因子:
9.7
通讯作者:
Ghosh, Sajal K.
中科院分区:
文献类型:
--
作者:
Patel, Kripa;Kollory, Anita;Takashima, Asami;Sarkar, Sibaji;Faller, Douglas V.;Ghosh, Sajal K.
Although dispensable for normal pancreatic function, STAT3 signaling is frequently activated in pancreatic cancers. Consistent downregulation of expression of microRNA let-7 is also characteristic of pancreatic ductal adenocarcinoma (PDAC) biopsy specimens. We demonstrate in this study that re-expression of let-7 in poorly-differentiated PDAC cell lines reduced phosphorylation/activation of STAT3 and its downstream signaling events and reduced the growth and migration of PDAC cells. Let-7 re-expression did not repress expression of STAT3 protein or its activator cytokine interleukin 6 (IL-6). However, let-7 re-expression enhanced cytoplasmic expression of suppressor of cytokine signaling 3 (SOCS3), which blocks STAT3 activation by JAK2. Our study thus identified a mechanism by which STAT3 signaling can be inhibited in pancreatic cancer cells by modifying let-7 expression.
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影响因子:
4.1
作者:
Hertel J;Bartschat S;Wintsche A;Otto C;Students of the Bioinformatics Computer Lab;Stadler PF
通讯作者:
Stadler PF
DOI:
10.1186/bcr1680
发表时间:
2007
期刊:
Breast cancer research : BCR
影响因子:
--
作者:
Berishaj M;Gao SP;Ahmed S;Leslie K;Al-Ahmadie H;Gerald WL;Bornmann W;Bromberg JF
通讯作者:
Bromberg JF
影响因子:
2
作者:
Akao, Yukihiro;Nakagawa, Yoshihito;Naoe, Tomoki
通讯作者:
Naoe, Tomoki
影响因子:
4.7
作者:
Karamitopoulou E
通讯作者:
Karamitopoulou E
影响因子:
8.8
作者:
Ali, S.;Saleh, H.;Sethi, S.;Sarkar, F. H.;Philip, P. A.
通讯作者:
Philip, P. A.