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UBE2A/B is the trans-acting factor mediating mechanotransduction and contact inhibition

ABSTRACT: Mechanotransduction converts mechanical stimuli into biochemical signals to regulate cell growth, differentiation, and survival. However, how mechanotransduction is linked to gene expression remains poorly understood. Here, we report the identification of UBE2A as an mechano-sensitive trans-acting factor, which translocates from the cytosol to the nucleus upon mechanical stimuli. UBE2A is an E2 enzyme that catalyzes ubiquitination of histone, which eventually results in transcription activation of downstream genes. Using ChIP-seq and RNAseq analysis, we identify downstream genes of UBE2A, including YAP1, a well-known mechanotransducer. Knock-down of UBE2A/B significantly downregulates YAP1 protein expression. Our findings identify the new mechanotransduction pathway that regulates gene expression through histone ubiquitination by UBE2A/B.

ORGANISM(S): Homo sapiens

PROVIDER: GSE213851 | GEO | 2023/10/11

REPOSITORIES: GEO

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UBE2A/B is the trans-acting factor mediating mechanotransduction and contact inhibition

Project description:Mechanotransduction converts mechanical stimuli into biochemical signals to regulate cell growth, differentiation, and survival. However, how mechanotransduction is linked to gene expression remains poorly understood. Here, we report the identification of UBE2A as an mechano-sensitive trans-acting factor, which translocates from the cytosol to the nucleus upon mechanical stimuli. UBE2A is an E2 enzyme that catalyzes ubiquitination of histone, which eventually results in transcription activation of downstream genes. Using ChIP-seq and RNAseq analysis, we identify downstream genes of UBE2A, including YAP1, a well-known mechanotransducer. Knock-down of UBE2A/B significantly downregulates YAP1 protein expression. Our findings identify the new mechanotransduction pathway that regulates gene expression through histone ubiquitination by UBE2A/B.

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