immunology and genetic disease @ third rock ventures

Joined May 2020
1 Photos and videos
Pinned Tweet
Very pleased to announce BEAM-201, a multiplex base edited allo CAR-T therapy for T-ALL. 4x simultaneous base edits (96-99% editing at all four targets), 85% CAR , and robust, dose dependent tumor control in vitro/in vivo. Fantastic achievement by the whole team @BeamTx.
5
14
140
Jason Gehrke retweeted
21 Oct 2025
an absolute shame. @harvard cutting PhD admissions "The Organismic and Evolutionary Biology department will shrink its class size by roughly 75 percent to three new Ph.D. students [...] Molecular and Cellular Biology will reduce its figure to four new students, and Chemistry and Chemical Biology will go down to four or five admits" thecrimson.com/article/2025/…
44
131
899
199,601
Jason Gehrke retweeted
Orbital Therapeutics Launches to Advance New Frontiers of Science with the Next Generation of Innovative RNA Medicines dlvr.it/SXvlVs
1
1
Jason Gehrke retweeted
Congratulations to @JKeithJoung for winning the 2022 Ho-Am Prize in Medicine for his many contributions to advancing the field of genome editing! 👏🍻🎉 hoamfoundation.org/eng/award…

6
12
156
Jason Gehrke retweeted
11 Jan 2022
Today we report in @CellCellPress an engineered virus-like particle (eVLP) platform that mediates efficient in vivo delivery of therapeutic proteins, including base editors and Cas9 nuclease, resulting in therapeutic editing in multiple mouse organs. 1/14 drive.google.com/file/d/1GdJ…
25
504
2,253
Jason Gehrke retweeted
7 Dec 2021
We have completed our first experiments on neutralization of Omicron by Pfizer BNT162b2 vaccination elicited immunity Manuscript available at sigallab.net/ and should be available on medRxiv in the coming days

236
2,337
6,959
Jason Gehrke retweeted
New base editing cell therapy data at SITC! Focusing here on CD5 CART (relevant for T cell lymphomas), we make 5 different edits simultaneously at 94% efficiency, without double strand breaks: globenewswire.com/news-relea…
5
15
81
Jason Gehrke retweeted
Excited to report our latest progress in our 3Q filing! Most importantly, the BEAM-101 IND is now open, designated safe to proceed by the FDA. BEAM-102 IND-enabling studies are also underway. globenewswire.com/news-relea…
15
15
150
Jason Gehrke retweeted
9 Oct 2021
It’s a good time to remind everyone of the data from $BEAM: multiplex base editing does not alter T cell karyotype or growth (but multiplex Cas9 editing does)
1
15
86
Jason Gehrke retweeted
29 Mar 2021
A thread: Many talented scientists including Alexis Komor and @NicoleGaudelli worked tirelessly starting in 2013 to develop and apply cytosine and adenine base editors, systems that directly edit targeted DNA base pairs in living cells without cutting the DNA double helix./1
6
103
484
Interested in using base editors and nucleases to engineer the next generation of T and NK cell therapies? Join us! My group is hiring at the Assoc Dir, Sr Sci, and Sci levels. DM here or apply via link below 👇
1
3
42
Jason Gehrke retweeted
Our new paper on second infusions of CD19 CAR T-cells is finally out *in print* in @BloodJournal ! doi.org/10.1182/blood.202000… Time for a little Tweetorial 😄 Please retweet for your CAR T-cell friends/aficionados 😉 [THREAD 🧵] 1/24 @fredhutch @RyanCassaday
15
127
292
Jason Gehrke retweeted
Congrats to @BeamTx and our own @Jason__Gehrke for creating our first allogenic CAR-T development candidate (Beam-201)! BEAM-201 is a potent and specific anti-CD7, multiplex base edited, allogeneic CAR-T development candidate for the treatment of T-ALL! globenewswire.com/news-relea…
2
7
56
What an unexpected/strange piece of T cell biology
Intercellular telomere transfer extends T cell lifespan disq.us/t/3s5vtlp Why do T cells give up their specific receptors in vesicles? Alessio and team find that they are "traded" with APC for telomeres that increase T cell lifespan. Exited to be part of the team!
1
1
7
Jason Gehrke retweeted

7
11
Jason Gehrke retweeted
And it's finally out! If you thought that CAR-Tregs would be just like CAR-T cells, think again. Great collaboration with @SangamoTx @JaDaFo Functional effects of chimeric antigen receptor co-receptor signaling domains in human regulatory T cells stm.sciencemag.org/content/1…

5
74
209