Sign in

Michael Betts

@bettsupenn.bsky.social
54 followers 12 following 6 posts

Professor of Microbiology at the University of Pennsylvania, expert in human immunology.

PostsRepliesMedia
Michael Betts @bettsupenn.bsky.social · 08/05/2026
Happy to announce publication of our first therapeutic mRNA-LNP paper! In vivo reprogramming of cytotoxic effector CD8 T cells via fractalkine-conjugated mRNA-LNPs | Science Immunology www.science.org/doi/10.1126/...
science.org
In vivo reprogramming of cytotoxic effector CD8 T cells via fractalkine-conjugated mRNA-LNPs
Fractalkine-conjugated mRNA-LNPs effectively target cytotoxic effector CD8 T cells for transient in vivo reprogramming.
02310
Michael Betts @bettsupenn.bsky.social · 10/03/2026
link.growkudos.com/1edup3p8u80
link.growkudos.com
Lymph node CD8+ T cells cannot effectively prevent HIV rebound after therapy interruption
We tested whether CD8+ T cells trapped in lymph nodes of SIV infected rhesus macaques during antiretroviral therapy interruption were able to prevent reactivation of viral replication and prevent rebo...
020
Michael Betts @bettsupenn.bsky.social · 15/12/2025
Hello all- we have a new paper on bioarchives, a massive study of lymph node HIV reservoirs at the single cell level. We show that T follicular helper cells are not the major HIV reservoirs during ART. This should prompt reevaluation of curative strategies www.biorxiv.org/content/10.6...
biorxiv.org
Selective infection and loss of PRDM1+ LN Tfh cells in uncontrolled HIV infection precludes formation of Tfh reservoirs under ART
The multifaceted and long-lived nature of HIV-1 reservoirs has proven to be a formidable obstacle in the development of a therapeutic cure of HIV-1. One of the major dimensions of the HIV-1 reservoir ...
020
Michael Betts @bettsupenn.bsky.social · 31/10/2025
Our latest research preprint demonstrating chemokine- based targeting of mRNA-LNPs to cytotoxic CD8 T cells and NK cells. A first in class gene therapy strategy. www.biorxiv.org/content/10.1...
biorxiv.org
In vivo reprogramming of cytotoxic effector CD8+ T cells via fractalkine-conjugated mRNA-LNP
Selective in vivo reprogramming of cytotoxic effector CD8+ T (Teff) cells holds tremendous promise as a therapeutic tool but has not yet been accomplished. Here, we demonstrate that fractalkine-conjug...
020
Michael Betts @bettsupenn.bsky.social · 25/08/2025
Thank you for bringing attention to our paper. For those who can’t read the paywalled version, we have this on bioarchives and are in the process of uploading the final version to PMC. Happy to answer any questions in the meantime
010
Michael Betts @bettsupenn.bsky.social · 20/11/2024
I have had the honor of knowing Dr Fauci for over 20 years. He is and always has been an incredibly dedicated and careful scientist. He has always carefully considered the facts in front of him and made the best scientific decisions for the greater good during many challenging times.
010