UFD1 contributes to MYC-mediated leukemia aggressiveness through suppression of the proapoptotic unfolded protein response.
UFD1 contributes to MYC-mediated leukemia aggressiveness through suppression of the proapoptotic unfolded protein response.
复制标题
DOI:
10.1038/s41375-018-0141-x
复制
发表时间:
2018-11
期刊:
影响因子:
11.4
通讯作者:
Feng H
中科院分区:
文献类型:
--
作者:
Huiting LN;Samaha Y;Zhang GL;Roderick JE;Li B;Anderson NM;Wang YW;Wang L;Laroche F;Choi JW;Liu CT;Kelliher MA;Feng H
Despite the pivotal role of MYC in tumorigenesis, the mechanisms by which it promotes cancer aggressiveness remain incompletely understood. Here we show that MYC transcriptionally upregulates the ubiquitin fusion degradation 1 (UFD1) gene in T-cell acute lymphoblastic leukemia (T-ALL). Allelic loss of ufd1 in zebrafish induces tumor-cell apoptosis and impairs MYC-driven T-ALL progression but does not affect general health. As the E2 component of an endoplasmic reticulum (ER)-associated degradation (ERAD) complex, UFD1 facilitates the elimination of misfolded/unfolded proteins from the ER. We found that UFD1 inactivation in human T-ALL cells impairs ERAD, exacerbates ER stress, and induces apoptosis. Moreover, we show that UFD1 inactivation promotes the proapoptotic unfolded protein response (UPR) mediated by protein kinase RNA-like ER kinase (PERK). This effect is demonstrated by an upregulation of PERK and its downstream effector C/EBP homologous protein (CHOP), as well as a downregulation of BCL2 and BCLxL. Indeed, CHOP inactivation or BCL2 overexpression is sufficient to rescue tumor-cell apoptosis induced by UFD1 knockdown. Together, our studies identify UFD1 as a critical regulator of the ER stress response and a novel contributor to MYC-mediated leukemia aggressiveness, with implications for targeted therapy in T-ALL and likely other MYC-driven cancers.
登录
查看更多内容
影响因子:
11.2
作者:
Dong D;Stapleton C;Luo B;Xiong S;Ye W;Zhang Y;Jhaveri N;Zhu G;Ye R;Liu Z;Bruhn KW;Craft N;Groshen S;Hofman FM;Lee AS
通讯作者:
Lee AS
影响因子:
5.6
作者:
Ma, YJ;Brewer, JW;Hendershot, LM
通讯作者:
Hendershot, LM
DOI:
10.1073/pnas.0606108103
发表时间:
2006-11-28
影响因子:
11.1
作者:
Palomero, Teresa;Lim, Wei Keat;Ferrando, Adolfo A.
通讯作者:
Ferrando, Adolfo A.
DOI:
10.1073/pnas.1100028108
发表时间:
2011-05-31
影响因子:
11.1
作者:
Chen, Meifan;Gutierrez, Gustavo J.;Ronai, Ze'ev A.
通讯作者:
Ronai, Ze'ev A.
影响因子:
4.8
作者:
Lee, AS
通讯作者:
Lee, AS