Grant Challen (@challenlab) header
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Biomedical research team trying to figure out stem cells and blood cancers. Dad, husband, kids soccer coach, rugby enthusiast, everything Star Wars / Marvel.

St Louis, MO
Joined September 2017
Photo by Grant Challen (@challenlab)Photo by Grant Challen (@challenlab)Photo by Grant Challen (@challenlab)Photo by Grant Challen (@challenlab)Photo by Grant Challen (@challenlab)Photo by Grant Challen (@challenlab)Photo by Grant Challen (@challenlab)Photo by Grant Challen (@challenlab)Photo by Grant Challen (@challenlab)Photo by Grant Challen (@challenlab)
Reminder to adjust your clocks today. The new crack of dawn is 10:30 AM according to my teenager when I dragged him out of bed yesterday. Please adjust your time accordingly
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Challen lab circa 2026 +|- a few extras
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Just great, even my own grapes are taunting me these days …
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Shoutout to all the Mums out there @LauraChallen
For every kid who was told “you can’t.” ❤️
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When the important time point falls on a weekend it’s all hands on deck @challenlab @washucancerbio
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GOATs doing GOAT stuff
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Exciting new developments for @ISEHSociety journal Experimental Hematology. Now a safe place for non-traditional papers that are super important to our field. e.g. - Standards in Hematology - method papers for best practices and new techniques. Help others avoid basic mistakes!
📢 Experimental Hematology, the official journal of ISEH, has launched new article types and author incentives! View the latest updates and submit your next manuscript: iseh.org/Publications/ExpHem…
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Good to see the French embracing American sporting culture and tanking for a better future draft pick
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Thank you @RoyalCaribbean for a great family vacation. I look forward to returning soon to defend my putt putt championship!
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When the seminar presenter is 5 minutes over time already and says “just a couple last slides” ….
Me when they finally bring food out but it’s for the other table
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Great reminder for us parents to enjoy the journey …
This is going to stick with me forever
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Irenaeus Chan representing the @WashUCancerBio program with style in the plenary session of #ASH25 !!
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Congrats to my man Jorge and I am sure he is gonna celebrate like only he can!
#ASH25: A well-deserved honor for Jorge Di Paola, MD, for his role in helping teach and inspire the next generation of pediatric classical hematologists. Congratulations, Dr. Di Paola! Learn more: hematology.org/newsroom/pres… . . . @WashUMedicine @WashUMedPeds @STLChildrens
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Super fun presenting at the #ASH25 “game of clones” session. Was a great set of presentations that ran the gamut of #CHIPsm Great to have the support of my forever mentors and collaborators @Goodell_Lab and @TheKingLab
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Grant Challen retweeted
Harvard chemist and molecular biologist David Liu invented gene editing tools that can correct and rewrite defective genes. His research could one day help hundreds of millions of people with genetic diseases, including sickle cell and muscular dystrophy. cbsn.ws/4oyLApL
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Grant Challen retweeted
After leukemia treatments failed, Alyssa Tapley, at age 13, was told she would die. Then, doctors tried an experimental gene-edited therapy. She became the first human to try the treatment made possible by U.S. federal funding. Now 16, she’s cancer-free and planning her future. cbsn.ws/4ou0OMt
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Ok they really got me good this year!! Happy Halloween from our lab to yours!!
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