Super-silencers are crucial for development and carcinogenesis in B cells.

ABSTRACT: The strength of the repressive histone H3 lysine 27 trimethylation modification signal varies drastically at individual silencers. Focusing on cases of an unusually strong repressive signal in regions that we refer to as super-silencers, we demonstrate that the regions that become B-cell super-silencers are originally associated with gene upregulation during development, and their target genes are highly expressed in stem cells, especially during early developmental stages. About 13% of B-cell super-silencers transmute to super-enhancers in B-cell lymphoma and 22% of these conversions recur across more than half of patients. Notably, genes associated with these conversions, like BCL6 and BACH2, are downregulated more swiftly than others when subjected to JQ1, a super-enhancer

SUBMITTER: Huang D 

PROVIDER: S-EPMC12236781 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature