Chemotherapy and ionizing radiation are known to promote clonal hematopoiesis and its progression to leukemia. By inducing temporary quiescence of hematopoietic stem cells during external stress might we mitigate CH expansion? We address this through a collaboration with @AbdelWahablab@PuZhang09980432: https://t.co/DUExKVNRSg. Excited to share this and some thoughts from a recent meeting in Hiroshima which puts this work in a broader perspective.
Similarly, in a mouse model of TP53 mutant clonal hematopoiesis, we found that contemporaneous administration of a CDK4/6 inhibitor with platinum chemotherapy mitigated p53 mutant cell expansion with chemotherapy:
Excited to announce a paper out today in @natgenet.nature.com identifying an approach to mitigate the risk of therapy-related myeloid malignancies in patients with cancer. Collaboration with @KellyLBolton@WashU and led by @IrenaeusChan & @PuZhang09980432
https://t.co/PkB6FViUCk
We had such a blast designing the slides for Irenaeus Chan’s plenary talk from @KellyLBolton’s lab at #ASH25 !
Big congratulations to both of them on this impactful work: "CDK4/6 Inhibition Mitigates Chemotherapy-induced Expansion of TP53-mutant Clonal Hematopoiesis.” #DrawImpacts
Wow!! 🔥🔥 CDK4/6 inhibition prevents selection of #ClonalHematopoiesis with DNA-damage repair mutations after chemotherapy! Awesome presentation from Irenaeus Chan from @KellyLBolton lab! #ASH25
Happening now at the #ASH25 Plenary: Irenaeus Chan from the @KellyLBolton lab shares new data showing that pharmacologically induced quiescence of hematopoietic stem cells may be a promising strategy to reduce therapy-related myeloid neoplasm risk.
Conclusions:
• Across multiple randomized placebo-controlled double-blind trials, trilaciclib reduced chemotherapy-induced DNA damage associated clonal hematopoiesis.
• In a murine model, CDK4/6 inhibitors prior to carboplatin suppressed chemotherapy-induced Trp53-mutant clonal expansion.
• CDK4/6 inhibition protects Trp53-WT hematopoietic stem cells while potentially promoting apoptosis in Trp53-mutant clones.
#MoffittASH25 @ASH_hematology@SitemanCenter@washumedicine
Outstanding Plenary talk @ASH_hematology by Chan from @KellyLBolton lab showing mechanistically how CDK4/6 inhibition can abrogate chemo-induced expansion of TP53-m and DNA-damage associated clones. Such a cool & impactful story 👏👏👏
#ASHkudos to plenary from @KellyLBolton lab & collaborated @AbdelWahablab tackling THE most important clinical issue for our patients- potential prevention of t-MN by suppressing TP53 clonal expansion. A topic close to my heart. Onwards ! #ASH25
Great plenary session from Irenaeus Chan of the Bolton lab who presented their findings of trilaciclib, a CDK4/6 inhibitor, and its impact on reducing TP53 mutated hematopoeisis following chemotherapy. #ASH25@ASH_hematology@KellyLBolton
Very intriguing results indeed, CDK4/6 inhibitors might be our path to prevent secondary myeloid neoplasms following cytotoxic drugs , congratulations to the research team on this amazing work @KellyLBolton#ASH25
#ASH25 bidding farewell to the amazing community & science that is @ASH_hematology . #ASHkudos to everyone who worked behind the scenes to make magic happen- see y’all at #ASH26 . Pic of 2 plenary duos-introducer & presenter