Oncogenic herpesvirus KSHV Hijacks BMP-Smad1-Id signaling to promote tumorigenesis.
Oncogenic herpesvirus KSHV Hijacks BMP-Smad1-Id signaling to promote tumorigenesis.
复制标题
致癌疱疹病毒 KSHV 劫持 BMP-Smad1-Id 信号传导促进肿瘤发生
DOI:
10.1371/journal.ppat.1004253
复制
发表时间:
2014-07
期刊:
影响因子:
6.7
通讯作者:
Lan K
中科院分区:
文献类型:
--
作者:
Liang D;Hu H;Li S;Dong J;Wang X;Wang Y;He L;He Z;Gao Y;Gao SJ;Lan K
Kaposi's sarcoma-associated herpesvirus (KSHV) is the etiological agent of Kaposi's sarcoma (KS), a malignancy commonly found in AIDS patients. Whether KS is a true neoplasm or hyperplasia has been a subject of intensive debate until recently when KSHV is unequivocally shown to efficiently infect, immortalize and transform rat primary mesenchymal precursor cells (MM). Moreover, KSHV-transformed MM cells (KMM) efficiently induce tumors with hallmark features of KS when inoculated into nude mice. Here, we showed Smad1 as a novel binding protein of KSHV latency-associated nuclear antigen (LANA). LANA interacted with and sustained BMP-activated p-Smad1 in the nucleus and enhanced its loading on the Id promoters. As a result, Ids were significantly up-regulated in KMM cells and abundantly expressed in human KS lesions. Strikingly, genetic and chemical inhibition of the BMP-Smad1-Id pathway blocked the oncogenic phenotype of KSHV-transformed cells in vitro and in vivo. These findings illustrate a novel mechanism by which a tumor virus hijacks and converts a developmental pathway into an indispensable oncogenic pathway for tumorigenesis. Importantly, our results demonstrate the efficacy of targeting the BMP-Smad1-Id pathway for inhibiting the growth of KSHV-induced tumors, and therefore identify the BMP pathway as a promising therapeutic target for KS.
登录
查看更多内容
DOI:
10.1073/pnas.0703508104
发表时间:
2007-10-09
影响因子:
11.1
作者:
Lan, Ke;Verma, Subhash C.;Robertson, Erle S.
通讯作者:
Robertson, Erle S.
影响因子:
8
作者:
Li, HM;Zhuang, ZH;Tsao, SW
通讯作者:
Tsao, SW
影响因子:
5.4
作者:
Liu, Yunhua;Sun, Rui;Lan, Ke
通讯作者:
Lan, Ke
影响因子:
3.1
作者:
Ballestas ME;Kaye KM
通讯作者:
Kaye KM
影响因子:
37.3
作者:
Lo AK;Dawson CW;Lo KW;Yu Y;Young LS
通讯作者:
Young LS