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heardlab.bsky.social

@heardlab.bsky.social
162 followers 72 following 8 posts
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heardlab.bsky.social @heardlab.bsky.social · 03/09/2026
NEW PREPRINT FROM THE LAB IS OUT — DON’T MISS IT! www.biorxiv.org/content/10.6... We asked whether the 3D architecture of the inactive X -  and in particular CTCF and cohesin -  is what keeps escapee genes active. Spoiler: it isn’t.
biorxiv.org
X-inactivation escapee domains are CTCF-cohesin independent chromatin compartments
X-chromosome inactivation involves chromosome-wide gene silencing accompanied by extensive chromatin changes, as well the loss of topologically associating domains. Yet discrete regions of the inactiv...
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heardlab.bsky.social @heardlab.bsky.social · 03/09/2026
New preprint from the Heard Lab and the Marti-Renom lab! 🧬 We show that X-inactivation escapee domains form distinct chromatin compartments independently of CTCF and cohesin. www.biorxiv.org/content/10.6...
biorxiv.org
X-inactivation escapee domains are CTCF-cohesin independent chromatin compartments
X-chromosome inactivation involves chromosome-wide gene silencing accompanied by extensive chromatin changes, as well the loss of topologically associating domains. Yet discrete regions of the inactiv...
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Reposted by @heardlab.bsky.social
Agnese Loda @agneseloda.bsky.social · 15/12/2025
This study was made possible by fantastic collaborations within the @heardlab.bsky.social and beyond. Huge thanks and congratulations to everyone who contributed! 🤩🤩🤩🎉🎉🎉🥳🥳🥳 @odomlab.bsky.social @oliverstegle.bsky.social @howardychang.bsky.social @JudithZaugg
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Reposted by @heardlab.bsky.social
Agnese Loda @agneseloda.bsky.social · 15/12/2025
We propose that natural fluctuations in Xist RNA levels - during development, in adult tissues, or disease - tune escapee gene dosage, laying the groundwork to explore Xist as a molecular signature of X-linked gene mis-regulation in health and disease.
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Reposted by @heardlab.bsky.social
Agnese Loda @agneseloda.bsky.social · 15/12/2025
Xist-mediated repression of escapees is SPEN-dependent and reshapes Xi 3D organization: TAD-like domains over escapee clusters are lost upon silencing and re-emerged when transcription resumes.
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Reposted by @heardlab.bsky.social
Agnese Loda @agneseloda.bsky.social · 15/12/2025
We show that increasing levels of Xist RNA repress escapee genes, well beyond early development, in differentiated, non-dividing cells and in vivo post implantation embryos.
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heardlab.bsky.social @heardlab.bsky.social · 15/12/2025
💡 New paper out in @natcellbio.nature.com 💥💥💥🚀🚀🚀 We uncover an unexpected role for endogenous Xist RNA in regulating X-linked genes that escape X-inactivation well beyond early development, in differentiated, non-dividing cells and in vivo post implantation embryos 👇👇👇👇
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