Epigenetic silencing by SETDB1 suppresses tumour intrinsic immunogenicity.
Epigenetic silencing by SETDB1 suppresses tumour intrinsic immunogenicity.
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DOI:
10.1038/s41586-021-03520-4
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发表时间:
2021-07
期刊:
影响因子:
64.8
通讯作者:
中科院分区:
文献类型:
--
作者:
Epigenetic dysregulation is a defining feature of tumorigenesis that is implicated in immune escape. To identify factors that modulate the immune sensitivity of cancer cells, we performed in vivo CRISPR-Cas9 screens targeting 936 chromatin regulators in mouse tumor models treated with immune checkpoint blockade (ICB). We identified the H3K9-methyltransferase SETDB1 and other members of the HUSH and KAP1 complexes as mediators of immune escape. We also found that amplification of SETDB1 (1q21.3) in human tumors is associated with immune exclusion and ICB resistance. SETDB1 represses broad domains, primarily within the open genome compartment. These domains are enriched for transposable elements (TEs) and immune clusters associated with segmental duplication events, a central mechanism of genome evolution. SETDB1 loss derepresses latent TE-derived regulatory elements, immunostimulatory genes, and TE-encoded retroviral antigens in these regions, and triggers TE-specific cytotoxic T-cell responses in vivo. Our study establishes SETDB1 as an epigenetic checkpoint that suppresses tumor-intrinsic immunogenicity, and thus represents a candidate target for immunotherapy.
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影响因子:
64.8
作者:
Jacobs, Frank M. J.;Greenberg, David;Ngan Nguyen;Haeussler, Maximilian;Ewing, Adam D.;Katzman, Sol;Paten, Benedict;Salama, Sofie R.;Haussler, David
通讯作者:
Haussler, David
影响因子:
4
作者:
Dennis MY;Eichler EE
通讯作者:
Eichler EE
影响因子:
5.4
作者:
EVANS, LH;MORRISON, RP;BRITT, WJ
通讯作者:
BRITT, WJ
影响因子:
14.9
作者:
The Gene Ontology Consortium
通讯作者:
The Gene Ontology Consortium
影响因子:
32.4
作者:
Abelin JG;Keskin DB;Sarkizova S;Hartigan CR;Zhang W;Sidney J;Stevens J;Lane W;Zhang GL;Eisenhaure TM;Clauser KR;Hacohen N;Rooney MS;Carr SA;Wu CJ
通讯作者:
Wu CJ