B-Myb accelerates colorectal cancer progression through reciprocal feed-forward transactivation of E2F2.
B-Myb accelerates colorectal cancer progression through reciprocal feed-forward transactivation of E2F2.
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B-Myb 通过 E2F2 的相互前馈反式激活加速结直肠癌进展
DOI:
10.1038/s41388-021-01961-9
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发表时间:
2021-09
期刊:
影响因子:
8
通讯作者:
Bu Y
中科院分区:
文献类型:
--
作者:
Fan X;Wang Y;Jiang T;Liu T;Jin Y;Du K;Niu Y;Zhang C;Liu Z;Lei Y;Bu Y
B-Myb is an important transcription factor that plays a critical role in gene expression regulation and tumorigenesis. However, its functional implication in colorectal cancer remains elusive. In this study, we found that B-Myb was significantly upregulated at both mRNA and protein levels in colorectal cancer samples compared to non-tumor counterparts. B-Myb overexpression accelerated cell proliferation, cell cycle progression and cell motility in colorectal cancer cells, and promoted tumor growth in orthotopic nude mouse models in vivo. In contrast, B-Myb depletion inhibited these malignant phenotypes. Mechanistic investigations revealed that E2F2 was a novel transcriptional target of B-Myb and is essential to B-Myb-induced malignant phenotypes. Notably, B-Myb and E2F2 exhibited positive expression correlation, and interacted with each other in colorectal cancer cells. In addition to their autoregulatory mechanisms, B-Myb and E2F2 can also directly transactivate each other, thus constituting consolidated reciprocal feed-forward transactivation loops. Moreover, both B-Myb and E2F2 are required for the activation of ERK and AKT signaling pathways in colorectal cancer cells. Taken together, our data clarified a critical role for B-Myb in colorectal cancer and unraveled an exquisite mutual collaboration and reciprocal cross regulation between B-Myb and E2F2 that contribute to the malignant progression of human colorectal cancer.
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影响因子:
45.3
作者:
O'Connell, Michael J.;Lavery, Ian;Wolmark, Norman
通讯作者:
Wolmark, Norman
DOI:
10.1152/ajpgi.00066.2011
发表时间:
2011-09-01
影响因子:
4.5
作者:
Papetti, Michael;Augenlicht, Leonard H.
通讯作者:
Augenlicht, Leonard H.
影响因子:
5.6
作者:
Jin Y;Zhu H;Cai W;Fan X;Wang Y;Niu Y;Song F;Bu Y
通讯作者:
Bu Y
影响因子:
13.5
作者:
Calvisi, Diego F.;Simile, Maria M.;Pascale, Rosa M.
通讯作者:
Pascale, Rosa M.
影响因子:
14.9
作者:
NOMURA, N;TAKAHASHI, M;ISHIZAKI, R
通讯作者:
ISHIZAKI, R