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Mechanosensitive genomic enhancers potentiate the cellular response to matrix stiffness.


ABSTRACT: Epigenetic control of cellular transcription and phenotype is influenced by changes in the cellular microenvironment, yet how mechanical cues from these microenvironments precisely influence epigenetic state to regulate transcription remains largely unmapped. Here, we combine genome-wide epigenome profiling, epigenome editing, and phenotypic and single-cell RNA-seq CRISPR screening to identify a new class of genomic enhancers that responds to the mechanical microenvironment. These 'mechanoenhancers' could be active on either soft or stiff extracellular matrix contexts, and regulated transcription to influence critical cell functions including apoptosis, mechanotransduction, proliferation, and migration. Epigenetic editing of mechanoenhancers on rigid materials tuned gene expression to levels observed on softer materials, thereby reprogramming the cellular response to the mechanical microenvironment. These editing approaches may enable the precise alteration of mechanically-driven disease states.

SUBMITTER: Cosgrove BD 

PROVIDER: S-EPMC10802421 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature

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Mechanosensitive genomic enhancers potentiate the cellular response to matrix stiffness.

Cosgrove Brian D BD   Bounds Lexi R LR   Taylor Carson Key CK   Su Alan L AL   Rizzo Anthony J AJ   Barrera Alejandro A   Crawford Gregory E GE   Hoffman Brenton D BD   Gersbach Charles A CA  

bioRxiv : the preprint server for biology 20240110


Epigenetic control of cellular transcription and phenotype is influenced by changes in the cellular microenvironment, yet how mechanical cues from these microenvironments precisely influence epigenetic state to regulate transcription remains largely unmapped. Here, we combine genome-wide epigenome profiling, epigenome editing, and phenotypic and single-cell RNA-seq CRISPR screening to identify a new class of genomic enhancers that responds to the mechanical microenvironment. These 'mechanoenhanc  ...[more]

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