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David Usharauli

@davidusharauli.bsky.social
158 followers 13 following 1K posts

Immunologist & biotech startup co-founder (tregeutix.com) on a mission to harness the power of Tregs & microbiota | Calling on visionary investors to join our journey 🚀

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David Usharauli @davidusharauli.bsky.social · 4h
The Weekend Tunes Los Ángeles Azules, TINI - Pa' Él (🇦🇷 Argentina 🇲🇽 Mexico) Argentina has so many interesting pop singers and their Spanish sounds so soft. Shared for educational/commentary purposes only. #WorldMusic 🌍 🎧 #MusicUnites ❤️🎵
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David Usharauli @davidusharauli.bsky.social · 6h
In 2018, Microsoft and Adaptive Biotechnologies launched an unusually ambitious collaboration to develop a comprehensive TCR–antigen map. What became of it? Did they actually succeed? #science #immunology
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David Usharauli @davidusharauli.bsky.social · 28/09/2026
"We stabilized mRNA vaccines ....Moderna ...and Pfizer-BioNTech ....compositions into solid-state formulations that retained 100% bioactivity after storage at 37 °C for more than 2 months." That sounds almost too good to be true. #science #immunology buff.ly/LJrTlCo
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Accelerated discovery of thermostable mRNA–lipid nanoparticle vaccines using data-efficient AI - Nature Biotechnology
The thermostability of RNA vaccines is improved with AI.
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Reposted by David Usharauli
Waggoner Lab @labwaggoner.bsky.social · 27/09/2026
Nucleoside analogs show protective and therapeutic effects in a mouse model of multiple sclerosis and reduced risk in humans www.science.org/doi/10.1126/...
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David Usharauli @davidusharauli.bsky.social · 26/09/2026
The Weekend Tunes Kolibri, Zlata Ko - Червоний мак (🇺🇦 Ukraine) Shared for educational/commentary purposes only. #WorldMusic 🌍 🎧 #MusicUnites ❤️🎵
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David Usharauli @davidusharauli.bsky.social · 22/09/2026
Nice work, but why call this an allergy? If there’s no IgG, IgE, or T-cell-driven mechanism and the effect lasts only three weeks, I don’t think “allergy” is the right term. It could be a pseudo-allergic reaction or simply itch. #science #immunology buff.ly/m3iNmS6
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Sensory neuronal mTORC1 kinase signaling establishes neuroimmune memory that initiates allergic immunity
How cumulative environmental allergen exposures are encoded by peripheral sensory neurons to shape immune responsiveness is unclear. Zhu et al. show that protease allergens induce an…
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David Usharauli @davidusharauli.bsky.social · 19/09/2026
This paper is a good example of the “if all you have is a hammer, everything looks like a nail” mindset. In an allograft setting,the authors observed that Tregs do not migrate to the graft unless Teff cells go there first, & they interpret this as something that needs to be fixed.. buff.ly/ViD5vvd
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Regulatory CD4 T cells minimally migrate to inflamed allografts in the absence of effector T cell responses
CD4+Foxp3+ regulatory T cells (Treg) are essential for maintaining immune tolerance in both lymphoid and non-lymphoid tissues, including transplanted organs. Understanding the mechanisms that…
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David Usharauli @davidusharauli.bsky.social · 19/09/2026
The Weekend Tunes Faydee - Helwe (🇦🇺Australia 🇱🇧 Lebanon) The retro effect for the fictional Lebanese TV show and the choice of actors is so great. Are these real actors or AI-generated? Shared for educational/commentary purposes only. #WorldMusic 🌍 🎧 #MusicUnites ❤️🎵
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Reposted by David Usharauli
Waggoner Lab @labwaggoner.bsky.social · 18/09/2026
Dietary pectin remodels commensal bacterial surfaces to promote IgA-mediated protection from intestinal inflammation @cp-cellhostmicrobe.bsky.social www.cell.com/cell-host-mi...
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David Usharauli @davidusharauli.bsky.social · 17/09/2026
In my view, If AI can solve a math problem it may mean that the problem is already conceptually understood in terms of how to solve it. What remains is often the tedious work of formal derivation and verification which AI can do much faster. #science buff.ly/pFbdIRm
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OpenAI breakthrough triggers ‘existential crisis’ in math
Claimed Navier-Stokes solution has polarized mathematicians over AI’s role—and what it means for the next generation
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Reposted by David Usharauli
Mohamed ElTanbouly @plasmacellguy.bsky.social · 16/09/2026
Hello! I've started my lab and we're looking to hire at multiple positions: 1-Postdoc 2-Scientist (primarily Computational biologists) 2-Lab manager 3-Tech If you're interested, please reach out to my institutional email. Looking forward to discussing further.
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David Usharauli @davidusharauli.bsky.social · 15/09/2026
Notable observation: chow-fed mice showed an increase in T cells specific for corn-derived zein, but surprisingly, the same was not observed when mice were fed purified zein. Then the typical scientific investigation began. #science #immunology buff.ly/KARg4ON
biorxiv.org
https://www.biorxiv.org/content/10.64898/2026.09.01.748748v2
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David Usharauli @davidusharauli.bsky.social · 15/09/2026
Scientists just won't give up searching for the needle in the haystack. That's what cancer neoantigen-specific T-cell discovery feels like. New paper by none other than Ton Schumacher, quite literally the Schumacher of this field. #science #immunology buff.ly/ZUE6EKB
biorxiv.org
https://www.biorxiv.org/content/10.64898/2026.09.07.749948v2
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David Usharauli @davidusharauli.bsky.social · 12/09/2026
The Weekend Tunes CHUNG HA (청하) - México ( 🇰🇷 South Korea) All that World Cup kissing in Mexico really got their imagination going 😂 #Kpop Shared for educational/commentary purposes only. #WorldMusic 🌍 🎧 #MusicUnites ❤️🎵 youtu.be/KsZ3pMrFeKU?...
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David Usharauli @davidusharauli.bsky.social · 09/09/2026
First, a paper suggesting that random-sequence mRNA vaccines enhance anti-tumor effects, and now another claiming that random, nonspecific T cells are sufficient to eliminate tumors. So much for antigen specificity. #science #immunology buff.ly/tvOuCe4
dictionary.cambridge.org
so much for something
1. used to express disappointment at the fact that a situation is not as you…
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David Usharauli @davidusharauli.bsky.social · 05/09/2026
The Weekend Tunes BLOK3 - KAYIP KALP (🇹🇷 Türkiye) 79M Shared for educational/commentary purposes only. #WorldMusic 🌍 🎧 #MusicUnites ❤️🎵 www.youtube.com/watch?v=A7Sh...
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Reposted by David Usharauli
Carolina Lucas @carolilucas.bsky.social · 04/09/2026
Dengue vaccines face a uniquely difficult challenge: protecting against four distinct viral serotypes at once. 🦟 Our new study in JEM: rupress.org/jem/article/... A 🧵 on why tetravalent vaccine design does not necessarily mean tetravalent immunity.
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David Usharauli @davidusharauli.bsky.social · 03/09/2026
If you think about it, nowadays peer review often focuses less on analysis of the presented data and more on requests for additional experiments, which can look more like reviewer-driven experimentation than actual peer review. #science www.science.org/content/arti...
science.org
Can AI help solve the peer-review crisis? Here are its promises and pitfalls
Amid a shortage of human reviewers, tests indicate AI can assist—but is not a savior
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David Usharauli @davidusharauli.bsky.social · 03/09/2026
Does the amino acid glutamate keep skin young? From the abstract, it’s not clear whether these results were obtained in mice. Skin aging in animals covered in thick fur could be quite different from skin aging in humans. #science #aging #rejuvenation www.cell.com/cell/abstrac...
cell.com
Skin-innervating glutamatergic neurons modulate aging
Within the skin, glutamatergic neurons expressing neurofilament heavy chain (Nefh) play a role in aging. Loss of Nefh during aging drives skin fibroblast senescence and collagen loss, whereas…
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David Usharauli @davidusharauli.bsky.social · 03/09/2026
Notable observation: Tasl KO, which disrupts the SLC15A4–TASL complex downstream of TLR7/8/9 signaling and its IRF5 activation pathway, protects against #autoimmunity across multiple SLE models, highlighting TASL as a potential therapeutic target. www.pnas.org/doi/10.1073/...
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The SLC15A4–TASL complex is essential for lupus development in mice | PNAS
Nucleic acid sensing by endolysosomal Toll-like receptors is critically involved in systemic lupus erythematosus (SLE) and related autoimmune disea...
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Reposted by David Usharauli
Waggoner Lab @labwaggoner.bsky.social · 02/09/2026
A pervasive RT–qPCR artifact inflates RNA knockdown by RNA-targeting CRISPR @natbiotech.nature.com @hopkinsmedicine.bsky.social www.nature.com/articles/s41...
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David Usharauli @davidusharauli.bsky.social · 31/08/2026
1/ What happens when the adaptive immune system first encounters new antigens in the gut after birth? It sounds like a basic question, but surprisingly, we still don't have a clear answer or at least that's what this paper suggests. #immunology www.biorxiv.org/content/10.6...
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David Usharauli @davidusharauli.bsky.social · 31/08/2026
Why are cancer vaccines so difficult to develop? Scientists have been working on cancer vaccines for decades and yet there are still no cancer “vaccines” approved that actually work in a meaningful sense. #science #immunology #immunotherapy 1/14 www.nature.com/articles/d41...
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David Usharauli @davidusharauli.bsky.social · 29/08/2026
The Weekend Tunes YLL LIMANI x RINA - PA TY (🇽🇰 Kosovo) Wow, Kosovo Albanian sounds so much like Romanian. *Kosovo is a disputed territory that declared independence from Serbia in 2008. Shared for educational/commentary purposes only. #WorldMusic 🌍 🎧 #MusicUnites ❤️🎵 youtu.be/3WcwI_X9dF8?...
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David Usharauli @davidusharauli.bsky.social · 28/08/2026
Why are cancer vaccines so difficult to develop? Scientists have been working on cancer vaccines for decades and yet there are still no cancer “vaccines” approved that actually work in a meaningful sense. #science #immunology #immunotherapy 1/14 www.nature.com/articles/d41...
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The Moderna cancer vaccine offers hope — now we must speed up personalized therapies
A positive trial holds promise for treating people with cancer. More research is needed to get effective vaccines to the clinic.
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David Usharauli @davidusharauli.bsky.social · 22/08/2026
The Weekend Tunes Cazzu - Con Otra ( 🇦🇷 Argentina) Shared for educational/commentary purposes only. #WorldMusic 🌍 🎧 #MusicUnites ❤️🎵 www.youtube.com/watch?v=OA3K...
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David Usharauli @davidusharauli.bsky.social · 21/08/2026
Strictly speaking, calling Moderna’s mRNA cancer neoantigen vaccines “personalized” is an immunological oxymoron when they are combined with a PD-1 inhibitor like Keytruda which broadly removes inhibitory brakes on T cells. #science #immunology 1/2 buff.ly/8UR40GK
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https://buff.ly/8UR40GK
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David Usharauli @davidusharauli.bsky.social · 17/08/2026
I think incorporating lottery-based selection into grant and hiring decisions could make the process more impartial and reduce selection bias. #science www.science.org/content/arti...
science.org
Justice Department calls three NSF diversity programs unconstitutional
New ruling bars programs said to discriminate by race and sex, six others can continue if modified
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David Usharauli @davidusharauli.bsky.social · 15/08/2026
The Weekend Tunes Andreea Bostanica x Havana x Yaar - Supergirl (🇲🇩 Moldova 🇷🇴 Romania) “Supergirl” reminds me of Havana, Yaar & Kaiia’s “Big Love” with Yaar’s velvety voice as a bonus. Shared for educational/commentary purposes only. #WorldMusic 🌍 🎧 #MusicUnites ❤️🎵
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David Usharauli @davidusharauli.bsky.social · 10/08/2026
Notable study. Safety profiling of CAR-T cells using an organotypic human tissue platform #science #immunology #tumor #immunotherapy www.biorxiv.org/content/10.6...
biorxiv.org
https://www.biorxiv.org/content/10.64898/2026.07.25.740527v1
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David Usharauli @davidusharauli.bsky.social · 10/08/2026
As I’ve pointed out many times before immunologically relevant mutations cannot be viewed in isolation since mutation-driven changes in the microbiota can indirectly influence the phenotype. Mutation → altered microbiota → phenotype #immunology www.biorxiv.org/content/10.1...
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https://buff.ly/wCP2g4g
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David Usharauli @davidusharauli.bsky.social · 08/08/2026
The Weekend Tunes Qorali & Shina - So Many Times (🇬🇪 Georgia 🇹🇷 Türkiye 🇳🇬 Nigeria) What a great collaboration! A beautiful blend of Georgian ballad and Nigerian gospel music. Shared for educational/commentary purposes only. #WorldMusic 🌍🎧 #MusicUnites ❤️🎵 youtu.be/3WP9WszKA7M?...
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David Usharauli @davidusharauli.bsky.social · 07/08/2026
"White Slaves: The Last Voices" by Elbruz Aksoy is a remarkable book about "white slaves" in the Ottoman Empire. It explores the Caucasus slave trade where many enslaved people were labeled "Circassians" and the lasting legacy of slavery in Turkey into the mid-20th century.
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David Usharauli @davidusharauli.bsky.social · 05/08/2026
If bile acid metabolites are the mechanism by which the microbiota affects allergy, then administer those metabolites directly and see if they reproduce the phenotype. Why bother with fecal microbiota transplantation (FMT)? #science #immunology #allergy www.science.org/doi/10.1126/...
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Fecal microbiome transplant in food allergy in humans and mice identifies a role for bile acid metabolites in oral tolerance
Fecal microbiome transplant up-regulates immune tolerance pathways in food allergy.
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David Usharauli @davidusharauli.bsky.social · 01/08/2026
The Weekend Tunes Luk3, Cristina Lora - MELODRAMMATICA (🇮🇹 Italy 🇪🇸 Spain) Why does Luk3 sound like an Eastern European speaking Italian at the beginning? Style, local accent, or just me? Shared for educational/commentary purposes only. #WorldMusic 🌍🎧 #MusicUnites ❤️🎵
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David Usharauli @davidusharauli.bsky.social · 30/07/2026
Was this in effect a private bailout to prevent a panic sell-off in AI stocks? #AI www.ft.com/content/5fb4...
ft.com
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David Usharauli @davidusharauli.bsky.social · 30/07/2026
1/ (1-17) In this thread I give my take on the new Immunity paper from the Benoist & Mathis lab on the role of TCR specificity in pTreg induction. #science #immunology #Treg #Foxp3 cell.com/immunity/ful...
cell.com
TCR origin and specificity to environmental or self-antigens on distinct antigen-presenting cells determine peripheral Treg cell differentiation
Using CRISPR-based TCR editing, Chi et al. systematically compare gut TCRs recognizing dietary, microbial, and self-antigens to define the principles that govern peripheral Treg cell differentiation. ...
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David Usharauli @davidusharauli.bsky.social · 28/07/2026
After a long paper drought, this article is worth reading and could be a good candidate for a Twitter/X thread explaining the key findings. #science #immunology #tolerance #Foxp3 #microbiota #antigen www.cell.com/immunity/ful...
cell.com
TCR origin and specificity to environmental or self-antigens on distinct antigen-presenting cells determine peripheral Treg cell differentiation
Using CRISPR-based TCR editing, Chi et al. systematically compare gut TCRs recognizing dietary, microbial, and self-antigens to define the principles that govern peripheral Treg cell differentiation.…
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David Usharauli @davidusharauli.bsky.social · 25/07/2026
The Weekend Tunes Edward Sanda - Una Ca Ea (🇷🇴 Romania) Her shy and unsure moves and poses make this video incredibly charming considering she's his wife and a singer herself. Shared for educational/commentary purposes only. #WorldMusic 🌍🎧 #MusicUnites ❤️🎵 www.youtube.com/watch?v=oqEt...
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David Usharauli @davidusharauli.bsky.social · 19/07/2026
The Weekend Tunes უსასრულო გზა — შენამდე (Endless Road to You) (🇬🇪 Georgia) It's AI-synthesized, but it's pretty good. Credited to Gocha Mumladze. Shared for educational/commentary purposes only. #WorldMusic 🌍 🎧 #MusicUnites ❤️🎵 www.youtube.com/watch?v=14X1...
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David Usharauli @davidusharauli.bsky.social · 16/07/2026
I find the authors' argument a bit strange. They say immunotherapy increases pro-tumorigenic PGE2 production via ATP. If this is generalizable, then how is an anti-tumor effect still observed? Not a single word about it. Poor discussion. #immunology www.cell.com/immunity/ful...
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Extracellular ATP-P2RY2 signaling drives intratumoral prostaglandin E2 accumulation and adaptive resistance to immunotherapy in solid tumors
Extracellular ATP (eATP) is associated with immune suppression in the tumor microenvironment (TME) via its metabolite adenosine. Hu et al. find that immunotherapy increases eATP within the TME and…
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David Usharauli @davidusharauli.bsky.social · 16/07/2026
Look what X is saying in the right sidebar under today's news: 'England defeats Argentina.' #FIFAWorldCup2026
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David Usharauli @davidusharauli.bsky.social · 16/07/2026
It's really something to watch Argentina do nothing for 75 minutes, then suddenly find a way to win in the last 15 minutes, and every team keeps falling for it again and again. #FIFAWolrdcup2026
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David Usharauli @davidusharauli.bsky.social · 11/07/2026
The Weekend Tunes manifest X Ajda Pekkan - Hileli (🇹🇷 Türkiye) finally Türkiye has a girl group that could take the world by storm. This video even has its own Diva from The Fifth Element. Shared for educational/commentary purposes only. #WorldMusic 🌍 🎧 #MusicUnites ❤️🎵 youtu.be/kXKhNI4DLHM?...
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David Usharauli @davidusharauli.bsky.social · 08/07/2026
8 teams remain in the World Cup. Chinese astrology says 2026 is a Fire Horse year, just like 1966, the year England won their first World Cup. If the pattern continues, we could see another first time champion this year. 👀 🏆 #FIFAWorldCup
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David Usharauli @davidusharauli.bsky.social · 08/07/2026
Chinese labs got so rich that they started doing what Western labs have been doing for a long time: running experiments with zero translational relevance simply because the experiments seemed "smart." #science #immunology www.science.org/doi/10.1126/...
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Reposted by David Usharauli
Waggoner Lab @labwaggoner.bsky.social · 08/07/2026
Diet–microbiome synergy underlies obesity-associated immunotherapy efficacy @nature.com @mcgilluniversity.bsky.social www.nature.com/articles/s41...
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David Usharauli @davidusharauli.bsky.social · 08/07/2026
A surprising and counterintuitive observation: a diet that promotes obesity enhances tumor control during immune checkpoint inhibitor therapy. #science #immunology #tumor #immunotherapy #gut #microbiota www.nature.com/articles/s41...
nature.com
Diet–microbiome synergy underlies obesity-associated immunotherapy efficacy - Nature
Diet shapes obesity-associated therapeutic responses to immune checkpoint inhibitors through gut microbial metabolism and host anti-tumour immunity, demonstrated in mouse custom-diet models and…
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David Usharauli @davidusharauli.bsky.social · 06/07/2026
The other day I cited a paper arguing that LEF1 determines exhausted T-cell fate. Now this paper proposes a different marker. Immunology has become so fragmented that everyone seems to have their own marker. #science #immunology www.nature.com/articles/s41...
nature.com
Mapping self-associating chromatin hubs identifies Id proteins as key determinants of exhausted CD8+ T cell fate - Nature Immunology
Xue et al. describe the dynamics of chromatin architecture during exhausted CD8+ T cell fate decisions and identify Id proteins as key regulators.
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Reposted by David Usharauli
OC Media @ocmedia.bsky.social · 05/07/2026
🎵 OC Reviews: Originally from Beslan, North Ossetia, singer Karina Kushtati has embraced Georgia, often performing traditional songs from across the Caucasus. oc-media.org/review-an-ossetian-geo…
oc-media.org
Review | An Ossetian–Georgian musical evening with Karina Kushati
Originally from Beslan, North Ossetia, singer Karina Kushtati has embraced Georgia, often performing traditional songs from across the Caucasus.
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