1/ It's long been assumed that AEBP2 recruit PRC2 to chromatin. Now, we show that AEBP2 usually does the exact opposite: The only isoform of AEBP2 that is expressed in most cell types and tissues inhibits the chromatin-binding activity of PRC2. www.embopress.org/doi/full/10....

Auto-inhibition of PRC2 by the broadly expressed long isoform of AEBP2 | The EMBO Journal

imageimageAEBP2 is an accessory subunit of the PRC2 complex previously implicated both in promoting and antagonizing Polycomb repressive activity. This study reveals that its alternative isoforms, AEB...

embopress.org

1/ 🚀 AEBP2 isn’t what we thought. You were told that AEBP2 promotes PRC2 activity on chromatin. We found the opposite: the most prevalent AEBP2 isoform inhibits PRC2 activity. 👉 surl.li/cgwqcq A thread 🧵

Very happy to see our paper published online natcomms.nature.com. Thank you to @wellcometrust.bsky.social for funding this work during my time with @robklose.bsky.social and David Booth! Thanks also to collaborators @garcialabms.bsky.social @alexdemendoza.bsky.social and the other authors!

Chromatin profiling identifies putative dual roles for H3K27me3 in regulating cell type-specific genes and transposable elements in choanoflagellates

Nature Communications - Here, the authors investigate chromatin-based gene regulation in the closest relative of animal, choanoflagellates. They uncover a putative dual role for the histone...

rdcu.be

Pleased to present at #ESMO25 the 16 year experience of tandem high-dose chemotherapy and autologous stem cell transplant for relapsed/refractory advanced stage germ cell tumours from Princess Margaret Cancer Centre, Toronto 🇨🇦

🧵1/Exciting news in cancer epigenetics! Our latest research, "AEBP2-Directed H3K27me2 Defines a Specific Vulnerability in EZH2-mutant Lymphoma", is now available on www.biorxiv.org/content/10.1.... Here's a thread summarizing our findings!👇 #CancerResearch #Epigenetics #Chromatin #Lymphoma

AEBP2-Directed H3K27me2 Defines a Specific Vulnerability in EZH2-mutant Lymphoma

The catalytic subunit of Polycomb Repressive Complex 2 (PRC2), EZH2, is recurrently mutated in 25% of diffuse large B-cell lymphomas (DLBCL), causing increased H3K27me3 and decreased H3K27me2 levels. ...

biorxiv.org

Excited to share our new paper out today in @cp-molcell.bsky.social! We show that the H3K27M oncohistone rewires cPRC1, creating a unique dependency on CBX4/PCGF4-containing complexes, and also reveal a previously unknown function of CBX4. Highlights below (1/11).

Our work identifying CBX4 as a potential therapeutic target for diffuse midline glioma has just been published in Molecular Cell! Check out co-first author @eimearlagan.bsky.social’s overview below.

Eimear Lagan@eimearlagan.bsky.social · last yr.

Excited to share our new paper out today in @cp-molcell.bsky.social! We show that the H3K27M oncohistone rewires cPRC1, creating a unique dependency on CBX4/PCGF4-containing complexes, and also reveal a previously unknown function of CBX4. Highlights below (1/11).

🧵 1/ We’re excited to share that our new paper with @adrianbracken.bsky.social lab is out 🎉 In this study (which began over 10 years ago!), we explore the biology of PRC2 and PRC1 in non-dividing cells. We also explore the effects of PRC2 inhibitor drugs on these cells. Here’s what we found👇

Congrats to @jamesnolan.bsky.social (now at @pmresearch-uhn.bsky.social) on his #ASH24 abstract achievement award for his PhD research @tcddublin.bsky.social! @adrianbracken.bsky.social 🇮🇪🇨🇦 @ash-hematology.bsky.social #Lmsm #ASHKudos

Looking forward to sharing collaborative work by myself and @dr-chromatin.bsky.social from the labs of @adrianbracken.bsky.social and @conwayer1.bsky.social at #ASH24 in San Diego this week. #hemesky #lymsm please feel free to stop by and share your thoughts.

🎉📢 Delighted to share our work from Princess Margaret Cancer Centre 🙌🏼 PTCy-based GvHD prophylaxis was associated with an improved GRFS, NRM, and OS 💪🏼 A big shout-out to @haemophage.bsky.social for his mentorship 🙌🏼 doi.org/10.1182/bloo... #MedSky #HemeSky

How does PRC1 counteract transcription? See this preview from @adrianbracken.bsky.social and I on an exciting new study from @robklose.bsky.social lab where they show ncPRC1 blocks the early stages of transcription. www.sciencedirect.com/science/arti... @conwayer1.bsky.social for title inspo!

My colleague @fergutierrezro1 giving an excellent talk at #ESHBMFS2024 on the clinical implications of clonal hematopoiesis in #telomere biology disorders 🧬; dependent on specific mutation with U2AF1, TP53, and chr1+ associated with #MDSsm and #AMLsm.