Autophagy creates a CTL epitope that mimics tumor-associated antigens.
Autophagy creates a CTL epitope that mimics tumor-associated antigens.
复制标题
DOI:
10.1371/journal.pone.0047126
复制
发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Kuzushima K
中科院分区:
文献类型:
--
作者:
Demachi-Okamura A;Torikai H;Akatsuka Y;Miyoshi H;Yoshimori T;Kuzushima K
The detailed mechanisms responsible for processing tumor-associated antigens and presenting them to CTLs remain to be fully elucidated. In this study, we demonstrate a unique CTL epitope generated from the ubiquitous protein puromycin-sensitive aminopeptidase, which is presented via HLA-A24 on leukemic and pancreatic cancer cells but not on normal fibroblasts or EBV-transformed B lymphoblastoid cells. The generation of this epitope requires proteasomal digestion and transportation from the endoplasmic reticulum to the Golgi apparatus and is sensitive to chloroquine-induced inhibition of acidification inside the endosome/lysosome. Epitope liberation depends on constitutively active autophagy, as confirmed with immunocytochemistry for the autophagosome marker LC3 as well as RNA interference targeting two different autophagy-related genes. Therefore, ubiquitously expressed proteins may be sources of specific tumor-associated antigens when processed through a unique mechanism involving autophagy.
登录
查看更多内容
DOI:
10.1074/jbc.m110.138958
发表时间:
2011-04-15
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Kim MJ;Woo SJ;Yoon CH;Lee JS;An S;Choi YH;Hwang SG;Yoon G;Lee SJ
通讯作者:
Lee SJ
影响因子:
10.5
作者:
Guo, Jessie Yanxiang;Chen, Hsin-Yi;White, Eileen
通讯作者:
White, Eileen
影响因子:
78.5
作者:
Mathew, Robin;Karantza-Wadsworth, Vassiliki;White, Eileen
通讯作者:
White, Eileen
影响因子:
5.7
作者:
Fujii, Satoshi;Mitsunaga, Shuichi;Ochiai, Atsushi
通讯作者:
Ochiai, Atsushi
DOI:
10.1073/pnas.96.18.10326
发表时间:
1999-08-31
影响因子:
11.1
作者:
Grommé, M;Uytdehaag, FGCM;Neefjes, J
通讯作者:
Neefjes, J