Unknown

Dataset Information

0

Tumoral EHF predicts the efficacy of anti-PD1 therapy in pancreatic ductal adenocarcinoma.


ABSTRACT: Pancreatic ductal adenocarcinoma (PDAC) is a highly immune-suppressive tumor with a low response rate to single checkpoint blockade therapy. ETS homologous factor (EHF) is a tumor suppressor in PDAC. Here, we report a novel function of EHF in pancreatic cancer immune microenvironment editing and efficacy prediction for anti-PD1 therapy. Our findings support that the deficiency of tumoral EHF induced the accumulation of regulatory T (T reg) cells and myeloid-derived suppressor cells (MDSCs) and a decrease in the number of tumor-infiltrating CD8+ T cells. Mechanistically, EHF deficiency induced the conversion and expansion of T reg cells and MDSCs through inhibiting tumor TGF?1 and GM-CSF secretion. EHF suppressed the transcription of TGFB1 and CSF2 by directly binding to their promoters. Mice bearing EHF overexpression tumors exhibited significantly better response to anti-PD1 therapy than those with control tumors. Our findings delineate the immunosuppressive mechanism of EHF deficiency in PDAC and highlight that EHF overexpression may improve PDAC checkpoint immunotherapy.

SUBMITTER: Liu J 

PROVIDER: S-EPMC6400540 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

altmetric image

Publications

Tumoral EHF predicts the efficacy of anti-PD1 therapy in pancreatic ductal adenocarcinoma.

Liu Jing J   Jiang Wenna W   Zhao Kaili K   Wang Hongwei H   Zhou Tianxing T   Bai Weiwei W   Wang Xiuchao X   Zhao Tiansuo T   Huang Chongbiao C   Gao Song S   Qin Tai T   Yu Wenwen W   Yang Bo B   Li Xin X   Fu Danqi D   Tan Wei W   Yang Shengyu S   Ren He H   Hao Jihui J  

The Journal of experimental medicine 20190207 3


Pancreatic ductal adenocarcinoma (PDAC) is a highly immune-suppressive tumor with a low response rate to single checkpoint blockade therapy. ETS homologous factor (EHF) is a tumor suppressor in PDAC. Here, we report a novel function of EHF in pancreatic cancer immune microenvironment editing and efficacy prediction for anti-PD1 therapy. Our findings support that the deficiency of tumoral EHF induced the accumulation of regulatory T (T reg) cells and myeloid-derived suppressor cells (MDSCs) and a  ...[more]

Similar Datasets

| S-EPMC5719052 | biostudies-literature
| S-EPMC4650682 | biostudies-other
| S-EPMC6947583 | biostudies-literature
| S-EPMC5996282 | biostudies-literature
| S-EPMC7657315 | biostudies-literature
| S-EPMC6796938 | biostudies-literature
| S-EPMC8025202 | biostudies-literature
| S-EPMC7532113 | biostudies-literature
| S-EPMC5587413 | biostudies-literature
| S-EPMC4293116 | biostudies-literature