DNA hypomethylation silences anti-tumor immune genes in early prostate cancer and CTCs.
CD1A
DNA hypomethylation
IFI16
NKT cells
circulating tumor cells
immune surveillance
lipid antigens
prostate cancer
single-cell sequencing
tumorigenesis
Journal
Cell
ISSN: 1097-4172
Titre abrégé: Cell
Pays: United States
ID NLM: 0413066
Informations de publication
Date de publication:
22 06 2023
22 06 2023
Historique:
received:
19
07
2022
revised:
09
02
2023
accepted:
17
05
2023
medline:
26
6
2023
pubmed:
17
6
2023
entrez:
16
6
2023
Statut:
ppublish
Résumé
Cancer is characterized by hypomethylation-associated silencing of large chromatin domains, whose contribution to tumorigenesis is uncertain. Through high-resolution genome-wide single-cell DNA methylation sequencing, we identify 40 core domains that are uniformly hypomethylated from the earliest detectable stages of prostate malignancy through metastatic circulating tumor cells (CTCs). Nested among these repressive domains are smaller loci with preserved methylation that escape silencing and are enriched for cell proliferation genes. Transcriptionally silenced genes within the core hypomethylated domains are enriched for immune-related genes; prominent among these is a single gene cluster harboring all five CD1 genes that present lipid antigens to NKT cells and four IFI16-related interferon-inducible genes implicated in innate immunity. The re-expression of CD1 or IFI16 murine orthologs in immuno-competent mice abrogates tumorigenesis, accompanied by the activation of anti-tumor immunity. Thus, early epigenetic changes may shape tumorigenesis, targeting co-located genes within defined chromosomal loci. Hypomethylation domains are detectable in blood specimens enriched for CTCs.
Identifiants
pubmed: 37327786
pii: S0092-8674(23)00580-9
doi: 10.1016/j.cell.2023.05.028
pmc: PMC10436379
mid: NIHMS1910396
pii:
doi:
Substances chimiques
DNA
9007-49-2
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
2765-2782.e28Subventions
Organisme : NCI NIH HHS
ID : R01 CA129933
Pays : United States
Organisme : NIBIB NIH HHS
ID : U01 EB012493
Pays : United States
Organisme : NCI NIH HHS
ID : R01 CA259007
Pays : United States
Organisme : NCI NIH HHS
ID : U01 CA268933
Pays : United States
Organisme : Howard Hughes Medical Institute
Pays : United States
Organisme : NIBIB NIH HHS
ID : P41 EB002503
Pays : United States
Informations de copyright
Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of interests Massachusetts General Hospital (MGH) has applied for patents regarding the CTC-iChip technology and CTC detection signatures. M.T., S.M., and D.A.H. are cofounders and have equity in Tell-Bio, which is not related to this work. The interests of these authors were reviewed and managed by MGH and Mass General Brigham (MGB) in accordance with their conflict of interest policies.
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