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Why can a human tolerate a drug that globally inhibits transcription? Why do transcription inhibitors not cure cancer? Our first paper of 2025 may help explain (some) of this! So incredibly proud of @tobiaswilliams.bsky.social & Ewa Michalak who led the work! www.cell.com/molecular-ce...
Jan 2, 2025
Transcription inhibitors also disrupt nuclear export. Here, Williams et al. reveal that mRNA export factors sense transcription inhibition and adapt by storing mature export-competent mRNA in nuclear speckles. This enables rapid release when transcription resumes and ensures retention of cellular identity and viability during a transient global transcription insult.
www.cell.com
mRNA export factors store nascent transcripts within nuclear speckles as an adaptive response to transient global inhibition of transcription
Mark Dawson