SETD1A drives stemness by reprogramming the epigenetic landscape in hepatocellular carcinoma stem cells.
Epigenetics
Hepatology
Liver cancer
Oncogenes
Oncology
Journal
JCI insight
ISSN: 2379-3708
Titre abrégé: JCI Insight
Pays: United States
ID NLM: 101676073
Informations de publication
Date de publication:
22 09 2023
22 09 2023
Historique:
received:
27
12
2022
accepted:
08
08
2023
medline:
25
9
2023
pubmed:
15
8
2023
entrez:
15
8
2023
Statut:
epublish
Résumé
Cancer stem cells (CSCs) are responsible for tumor progression and recurrence. However, the mechanisms regulating hepatocellular carcinoma (HCC) stemness remain unclear. Applying a genome-scale CRISPR knockout screen, we identified that the H3K4 methyltransferase SETD1A and other members of Trithorax group proteins drive cancer stemness in HCC. SET domain containing 1A (SETD1A) was positively correlated with poor clinical outcome in patients with HCC. Combination of SETD1A and serum alpha fetoprotein substantially improved the accuracy of predicting HCC relapse. Mechanistically, SETD1A mediates transcriptional activation of various histone-modifying enzymes, facilitates deposition of trimethylated H3K4 (H3K4me3) and H3K27me3, and activates oncogenic enhancers and super-enhancers, leading to activation of oncogenes and inactivation of tumor suppressor genes simultaneously in liver CSCs. In addition, SETD1A cooperates with polyadenylate-binding protein cytoplasmic 1 to regulate H3K4me3 modification on oncogenes. Our data pinpoint SETD1A as a key epigenetic regulator driving HCC stemness and progression, highlighting the potential of SETD1A as a candidate target for HCC intervention and therapy.
Identifiants
pubmed: 37581938
pii: 168375
doi: 10.1172/jci.insight.168375
pmc: PMC10561725
doi:
pii:
Substances chimiques
Setd1A protein, human
EC 2.1.1.43
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
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