Dhuvi Karthikeyan
@dkarthikey1.bsky.social
770 followers 340 following 39 posts
Shape rotator and vibes curator at UNC’s Personalized Immunotherapy Research Lab. Generative modeling and representation learning in biology. 👨‍🏫👨‍🔬
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dkarthikey1.bsky.social
Now out in @natmachintell.nature.com

TCRT5 is a rapid generator of target-conditioned CDR3b, leads SoTA, and yields the first AI-designed self-tolerant binder to an OOD non-viral epitope (w val)

📑: www.nature.com/articles/s42...
🤗: huggingface.co/dkarthikeyan1
👨‍💻: github.com/pirl-unc/tcr_translate
Reposted by Dhuvi Karthikeyan
kischober.bsky.social
When a T cell carries both its natural TCR and an engineered CAR, do these two receptors cooperate - or compete?

Our new preprint on bioRxiv shows that TCR activation can enhance CAR-T activation but impairs CAR-mediated killing when targets are on separate cells.

www.biorxiv.org/content/10.1...
TCR activation impairs CAR-T cytotoxicity against separate target cells
Chimeric antigen receptor T cells (CAR-T) are effective therapeutics against cancer and autoimmunity, but whether the endogenous T cell receptor (TCR) is beneficial, detrimental or irrelevant for CAR ...
www.biorxiv.org
Reposted by Dhuvi Karthikeyan
biorxiv-microbiol.bsky.social
No Distinct Gut Microbiome Signature in Alzheimer's Disease: A Reanalysis with Modern Tools https://www.biorxiv.org/content/10.1101/2025.09.09.675220v1
dkarthikey1.bsky.social
Now out in @natmachintell.nature.com

TCRT5 is a rapid generator of target-conditioned CDR3b, leads SoTA, and yields the first AI-designed self-tolerant binder to an OOD non-viral epitope (w val)

📑: www.nature.com/articles/s42...
🤗: huggingface.co/dkarthikeyan1
👨‍💻: github.com/pirl-unc/tcr_translate
Reposted by Dhuvi Karthikeyan
alexr.bsky.social
tl;dr T5 style translation model to generate T cell receptors from targets actually kinda works

Caveats: not full TCR (CDR3b), strong signal that public data biased towards “polyspecific” TCRs — lo and behold, generated TCR-T is polyspecific in vitro.

Open weights, go wild.
jamieheather.bsky.social
This is a cool story that I've watched with great interest - making big steps in the field of de novo TCR generation! Great work @dkarthikey1.bsky.social / @benjamingvincent.bsky.social / @alexr.bsky.social et al
labwaggoner.bsky.social
Conditional generation of real antigen-specific T cell receptor sequences @natmachintell.nature.com
www.nature.com/articles/s42...
dkarthikey1.bsky.social
This story is nothing without its reviewers 🩵
Reposted by Dhuvi Karthikeyan
alexr.bsky.social
With some key contributions by Sarah Bennet in actually turning predicted TCRs into TCR-Ts and testing them!

Hopefully this raises the bar on TCR generation evals, I think we the best in silico metrics and 1 in 20 TCRs just kinda works.
Reposted by Dhuvi Karthikeyan
jamieheather.bsky.social
This is a cool story that I've watched with great interest - making big steps in the field of de novo TCR generation! Great work @dkarthikey1.bsky.social / @benjamingvincent.bsky.social / @alexr.bsky.social et al
labwaggoner.bsky.social
Conditional generation of real antigen-specific T cell receptor sequences @natmachintell.nature.com
www.nature.com/articles/s42...
Reposted by Dhuvi Karthikeyan
alphafold.bsky.social
Today’s news about Joe Biden makes it almost difficult not to reflect on the unrealistic promises from AI leaders who claim AI could end disease and usher in radical abundance. Disease will persist. AI is a tool, not a cure-all. People deserve truth, not hype.

www.cbsnews.com/amp/news/art...
Artificial intelligence could end disease, lead to "radical abundance," Google DeepMind CEO Demis Hassabis says
At Google DeepMind, researchers are chasing what's called artificial general intelligence: a silicon intellect as versatile as a human's, but with superhuman speed and knowledge.
www.cbsnews.com
Reposted by Dhuvi Karthikeyan
dustinrubenstein.com
NSF to ONLY fund research in five areas: artificial intelligence, quantum information science, biotechnology, nuclear energy, and translational science. Can this be happening?

www.science.org/content/arti...
NSF slashes number of ‘rotators’ and well-paid managers as part of restructuring
Smaller future budgets will require fewer people, NSF official tells staff
www.science.org
Reposted by Dhuvi Karthikeyan
kyunghyuncho.bsky.social
what do you teach at the first-year graduate course on machine learning, in this era of LLM and large-scale compute? here's my experiment on answering this question: let's teach everything that admits SGD and that is not LLM, and ask students to read old papers.
Reposted by Dhuvi Karthikeyan
georgetakei.bsky.social
We hadn’t won World War II by May 8th. I know because my family and I were still in an internment camp in Tule Lake, California.
Reposted by Dhuvi Karthikeyan
cvandesandt.bsky.social
Your immune system gradually loses it top team players when we get older 👱➡️👵
Our study in @ebiomedicine.bsky.social investigates how long good immune cells stay around – a 🧵⬇️ go.unimelb.edu.au/4sep
@katherinekedz.bsky.social @thedohertyinst.bsky.social #Influenza #AgingResearch #Immunity #TCR
Reposted by Dhuvi Karthikeyan
shobitap.org
My PhD student's NSF grant was terminated today. Her dissertation investigates why air pollution monitoring, metrics, and regulations don't properly capture the harms experienced by marginalized communities--esp in the most polluted Detroit neighborhoods. She and I are happy to talk with press etc.
NSF Award Search: Award # 2240343 - Constructing Credible Knowledge and Expertise in Air Pollution Regulation and Monitoring: The Problem of Quantification Lock
www.nsf.gov
Reposted by Dhuvi Karthikeyan
erictopol.bsky.social
HHS's Office of Long COVID Research and Practice has been DOGEd. Closing this week.
Reposted by Dhuvi Karthikeyan
ncfrey.bsky.social
We @prescientdesign.bsky.social Genentech pre-printed our "Lab-in-the-loop for therapeutic antibody design." We built a general ML system to accelerate molecule design for challenging, therapeutically relevant targets.

www.biorxiv.org/content/10.1...
www.biorxiv.org
Reposted by Dhuvi Karthikeyan
jpflores.rbind.io
You in the Triangle area and thinking about standing up for science? Come to my beloved 2nd workplace and make a sign 😊🍻 supplies provided!

You can leave a sign w me and i can bring it up to DC!

@standupforscience.bsky.social
Reposted by Dhuvi Karthikeyan
jamieheather.bsky.social
Dear TCR researchers of #immunosky, you may be interested to know that our tool Stitchr - for the automated production of full-length T cell receptor sequences - has just had a nice little update:

jamieheather.github.io/stitchr/
stitchr — stitchr documentation
jamieheather.github.io
Reposted by Dhuvi Karthikeyan
darbysaxbe.bsky.social
🚨BREAKING. From a program officer at the National Science Foundation, a list of keywords that can cause a grant to be pulled. I will be sharing screenshots of these keywords along with a decision tree. Please share widely. This is a crisis for academic freedom & science.
list of banned keywords
dkarthikey1.bsky.social
Musks method of ruthlessly enforcing efficiency by removing things and adding them back if the system breaks has worked well for pruning complexity of products, pipelines and entire companies. But applying this methodology to govt is dangerous and will result in greater harm to the American people