Einzeltreffer — DigiBib

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.

Competing Interests: 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.

Titel:	DNA hypomethylation silences anti-tumor immune genes in early prostate cancer and CTCs.
Autor/in / Beteiligte Person:	Guo, H ; Vuille, JA ; Wittner, BS ; Lachtara, EM ; Hou, Y ; Lin, M ; Zhao, T ; Raman, AT ; Russell, HC ; Reeves, BA ; Pleskow, HM ; Wu, CL ; Gnirke, A ; Meissner, A ; Efstathiou, JA ; Lee, RJ ; Toner, M ; Aryee, MJ ; Lawrence, MS ; Miyamoto, DT ; Maheswaran, S ; Haber, DA
Link:	Full Text Finder (Volltext)
Zeitschrift:	Cell, Jg. 186 (2023-06-22), Heft 13, S. 2765-2782.e28
Veröffentlichung:	Cambridge, Ma : Cell Press ; <i>Original Publication</i>: Cambridge, MIT Press., 2023
Medientyp:	academicJournal
ISSN:	1097-4172 (electronic)
DOI:	10.1016/j.cell.2023.05.028
Schlagwort:	Animals Humans Male Mice Carcinogenesis genetics DNA Epigenesis, Genetic Neoplastic Cells, Circulating DNA Methylation Prostatic Neoplasms genetics
Sonstiges:	Nachgewiesen in: MEDLINE Sprachen: English Publication Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't Language: English [Cell] 2023 Jun 22; Vol. 186 (13), pp. 2765-2782.e28. <i>Date of Electronic Publication: </i>2023 Jun 15. MeSH Terms: DNA Methylation* ; Prostatic Neoplasms* / genetics ; Animals ; Humans ; Male ; Mice ; Carcinogenesis / genetics ; DNA ; Epigenesis, Genetic ; Neoplastic Cells, Circulating References: Science. 2018 Nov 30;362(6418):1060-1063. (PMID: 30498128) ; Genome Res. 2014 Feb;24(2):177-84. (PMID: 24068705) ; Nat Commun. 2015 Jan 21;6:6033. (PMID: 25607992) ; Bioinformatics. 2015 Jan 15;31(2):166-9. (PMID: 25260700) ; Bioinformatics. 2016 Jan 15;32(2):289-91. (PMID: 26424858) ; Cancer Res. 2001 Apr 15;61(8):3225-9. (PMID: 11309270) ; Cancer Cell. 2002 May;1(4):299-305. (PMID: 12086841) ; Science. 2011 Mar 25;331(6024):1565-70. (PMID: 21436444) ; J Endocrinol. 2012 May;213(2):173-82. 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DNA hypomethylation silences anti-tumor immune genes in early prostate cancer and CTCs.