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Chris Sullivan

@sullivanlab.bsky.social
400 followers 783 following 24 posts

Virologist at UT Austin who works on host- pathogen interactions and RNA.

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Reposted by Chris Sullivan
Claus Wilke @clauswilke.com · 15/09/2026
I wrote up my thoughts about the COVID origin. I don't plan to weigh in on the topic beyond this one post for the next five years or so. Looking into what the evidence says once or twice every decade feels like a good cadence. blog.genesmindsmachines.com/p/it-still-w...
blog.genesmindsmachines.com
It still wasn’t a lab leak
Six years in, all the evidence points in one direction
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Reposted by Chris Sullivan
Claus Wilke @clauswilke.com · 11/09/2026
If you want to worry about the dangers of AI, something like this is a much better place to start than an engineered bioweapon. t.me/MaxOsintInte...
⚡️🇾🇪🇾🇪 — A cell in northern Yemen used Anthropic's Claude Code to develop software for guided rockets, a long-range ballistic missile, and a hypersonic glide vehicle concept, according to Anthropic's September threat report cited by Clash Report.

➡️ The operators ran several Claude instances in parallel — dividing coding, research, and technical review — allowing a small group to replicate the work of specialist engineering teams. Anthropic assessed the cell as highly likely linked to the Houthis.
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Chris Sullivan @sullivanlab.bsky.social · 10/09/2026
My department at UT Austin is looking to hire an Asst. prof immunologist - including those who work on host-pathogen interaction, inflammation and cancer. Please amplify this and share widely.
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Reposted by Chris Sullivan
Claus Wilke @clauswilke.com · 30/08/2026
I'm really frustrated by the constant fear-mongering about AI-designed superviruses. Can we focus on the things that should actually worry us, such as measles? blog.genesmindsmachines.com/p/im-sorry-y...
blog.genesmindsmachines.com
I'm sorry, you're not going to die from an AI-engineered supervirus
God save us from economists who think they can competently talk about biology
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Thiago Carvalho @cyrilpedia.bsky.social · 31/08/2026
'There are deadly viruses all around us, and viruses routinely jump from animals to humans and cause severe outbreaks. This is a real, documented risk. This is the risk we should worry about. This is the risk we should prepare for. But instead, we worry about fictitious AI-designed viruses'
blog.genesmindsmachines.com
I'm sorry, you're not going to die from an AI-engineered supervirus
God save us from economists who think they can competently talk about biology
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Reposted by Chris Sullivan
Clay Kosonocky @kosonocky.bsky.social · 17/08/2026
Can we use human language to predict novel bioactive molecules that work in vivo? In our new paper, we trained a deep learning model on a dataset derived from PubMed text and used it to discover novel antibiotic co-inhibitors that reduced infection burden, even in mouse models!
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Chris Sullivan @sullivanlab.bsky.social · 15/08/2026
Learning from human and chemical languages to predict biological function Novel LLM AI approach trained on the literature Effective compounds in vivo for antimicrobial resistance Congrats UT Austin researchers Mavridou, Ellington, Wilke, Marcotte & colleagues www.biorxiv.org/content/10.6...
biorxiv.org
Learning from human and chemical languages to predict biological function
Understanding how molecular structure encodes biological function remains a grand challenge in drug discovery. Here, we present PubCheF-1, a deep learning model that predicts literature-derived biolog...
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Chris Sullivan @sullivanlab.bsky.social · 05/08/2026
COVID awakens persistent viruses especially in the herpes and anello virus families. Cool example of RNA virus/DNA virus crosstalk. Maybe this adds to the inflammatory burden and misery. Congrats to UT Austin researcher Ester Melamed and co authors on this work. www.nature.com/articles/s41...
nature.com
Virus reactivation in acute and long COVID-19 - Nature
Chronic reactivation of distinct herpesviruses and anelloviruses occur during acute and long COVID-19, and track with disease severity, inflammation and outcomes, revealing immune signatures with prog...
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Chris Sullivan @sullivanlab.bsky.social · 28/07/2026
Timely podcast describing several stories of the real-world clinical impact derived from basic science starting with non-medical questions. Spot-on take from a wellness influencer who is not a practicing scientist. peterattiamd.com/medicalbreak...
peterattiamd.com
#401 ‒ How curiosity transforms medicine: extraordinary discoveries that changed modern healthcare - Peter Attia MD
“The history of medicine is full of examples where we didn't invent the underlying mechanism. We discovered it, understood it, and then engineered it into something useful.” —Peter Attia
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Chris Sullivan @sullivanlab.bsky.social · 27/07/2026
If at #ASV2026, stop by our presentations: - A. Mojumder: on the provocative possibility of Polyomavirus latency - K. Szymanik: on multiple pirating events of a RNA phosphatase & implications for pan-eukaryotic evolution of virus detection - R. Lattupally: on a new relevant cell model for muPyV
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Chris Sullivan @sullivanlab.bsky.social · 08/06/2026
Anik made a most excellent video explaining his work on viral persistence and reactivation…
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Reposted by Chris Sullivan
Alessandro Scacchetti @metalsga.bsky.social · 26/05/2026
Yet another beautiful example of host-pathogen RNA communication. Fantastic work! Reminder to myself: READ MORE PLANT PAPERS! www.nature.com/articles/s41...
nature.com
A pathogen lncRNA secreted into rice sequesters a host miRNA for virulence - Nature
A fungal long non-coding RNA from Magnaporthe oryzae translocates into rice cells to sequester a host microRNA that normally represses PKR1, a negative immunity regulator, thereby facilitating in...
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Chris Sullivan @sullivanlab.bsky.social · 14/05/2026
5’PPP-RNAs starting with G recruit GTP binding proteins reducing RIG-I activation - a mechanism explaining how different start nucleotides can affect RNA PAMPogenicity / IFN induction. #triphosphateRNAbalance www.technologynetworks.com/tn/news/cell... www.sciencedirect.com/science/arti...
technologynetworks.com
Subtle Differences in RNA Have a Big Impact on Innate Immunity
New findings suggest subtle differences at the beginning of RNA molecules can affect how cells distinguish viral threats from harmless cellular RNA.
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Thelonevirologist @thelonevirologist.bsky.social · 28/04/2026
PKR condensation at viral replication complexes initiates its activation www.cell.com/cell-reports...
cell.com
PKR condensation at viral replication complexes initiates its activation
Blomqvist et al. show that protein kinase R (PKR) condensation on dsRNA exposed at MERS-CoV or ZIKV viral replication complexes initiates its activation. The NS4a protein encoded by MERS-CoV inhibits ...
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Reposted by Chris Sullivan
Corcoran Lab @corcoranlab.bsky.social · 02/04/2026
journals.plos.org/plosbiology/...
journals.plos.org
Evolution of a truncated nucleocapsid protein enhances SARS-CoV-2 fitness by suppressing antiviral responses
SARS-CoV-2 has evolved to optimize its replication fitness in the human host. This study shows that a nucleocapsid gene mutation enhances production of a truncated protein that boosts viral fitness in...
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Chris Sullivan @sullivanlab.bsky.social · 18/03/2026
Chemotherapy that makes cancer cells look like they’re infected with a virus: ROS>ER stress>UPR>increased MAVS>Type I IFN/CXCL10
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Reposted by Chris Sullivan
Ivan Zanoni @lozanzi.bsky.social · 15/03/2026
#WeekendRead #MysterySolved! MYC is one of the most famous #oncogenes & a potential therapeutic target but how does it work? Uhl, Eilers &co show @cp-cell.bsky.social that MYC binds introns during RNA stalling preventing export of dsRNA & DNA/RNA hybrids & anti-tumoral TLR3 activation!
sciencedirect.com
MYC binding to nascent RNA suppresses innate immune signaling by R-loop-derived RNA-DNA hybrids
In response to perturbed transcription elongation, the MYC oncoprotein multimerizes and undergoes a phase transition. Here, we demonstrate that MYC gl…
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Reposted by Chris Sullivan
Zunlong Ke @zunlongke.bsky.social · 04/03/2026
#PostdocRecruiting: My group at the University of Texas at Austin is recruiting a Postdoc in virology and structural biology. Please see more details here: utaustin.wd1.myworkdayjobs.com/UTstaff/job/... Informal inquiries are encouraged, and see more lab info here: zunlongke-lab.org
utaustin.wd1.myworkdayjobs.com
Postdoctoral Fellow
Job Posting Title: Postdoctoral Fellow ---- Hiring Department: Molecular Biosciences ---- Position Open To: All Applicants ---- Weekly Scheduled Hours: 40 ---- FLSA Status: Exempt ---- Earliest Start ...
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Reposted by Chris Sullivan
Texas Science @texasscience.bsky.social · 18/02/2026
Some of our earliest microbial ancestors, the Asgard archaea, were able to use oxygen, says new study in @nature.com. It may solve a mystery about how complex life first arose. #AsgardArchaea #MicrobialEcology #Eukaryogenesis #TexasScience @utmsi.bsky.social @archaeal.bsky.social
cns.utexas.edu
A Break in a Longstanding Mystery about Origin of Complex Life
Breathe easy. It appears our microbial ancestors used oxygen, too.
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Chris Sullivan @sullivanlab.bsky.social · 13/02/2026
Polyomaviruses are masters of persistence and dissemination: we show there are two forms of long-term persistent PyVs in the kidney: the majority being cryptic (non-shedding) and a minority that actively shed, and these fates are determined shortly after infection. www.biorxiv.org/content/10.6...
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John Lukens @lukensjohnr.bsky.social · 13/01/2026
3 papers in Cell @cellpress.bsky.social today exploring the mechanistic connection between Epstein-Barr virus and multiple sclerosis #MultipleSclerosis cell.com/cell/fulltex... cell.com/cell/fulltex... www.cell.com/cell/fulltex...
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Simon Baker @drsimonbaker.bsky.social · 07/01/2026
I chatted with @philiprlang.bsky.social on his podcast about how a virus might be involved in bladder cancer. Since "Phil Lang is Not a Scientist", we made this really accessible. If you're interested in how small sneaky DNA viruses might contribute to the origins of cancers, give it a listen.
creators.spotify.com
Episode 13 - Simon Baker by Phil Lang is Not a Scientist
In this podcast I speak to Simon about his important research into the causes of bladder cancer, as well as his life and career.Story from Kidney Research UK about Simon's important breakthrough: http...
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Chris Sullivan @sullivanlab.bsky.social · 06/01/2026
Our tiny review on exciting new findings on how polyomaviruses persist: journals.asm.org/eprint/MGEK6...
journals.asm.org
mGem: Deciphering how polyomaviruses coexist with their hosts for a lifetime | mBio
It has been said that “Energy and persistence conquer all things” (Benjamin Franklin). Viral persistence refers to the ability of some viruses to establish long-term infections rather than being clear...
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Chris Brooke @christopherbrooke.bsky.social · 12/12/2025
Check out @lizthayer.bsky.social's new preprint exploring factors that influence cell-to-cell heterogeneity in interferon (IFN) induction potential!
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Chris Sullivan @sullivanlab.bsky.social · 12/12/2025
Vesicle and non-vesicle-mediated inter-kingdom delivery of an Argonaute from nematode to mouse link.springer.com/article/10.1...
link.springer.com
An Argonaute protein traffics from nematode to mouse and is a vaccine against parasitic nematodes - EMBO Reports
Argonautes are ancient proteins with well-characterised functions in cell-autonomous gene regulation and genome defence, but less clear roles in non-cell-autonomous processes. Extracellular Argonautes...
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Chris Sullivan @sullivanlab.bsky.social · 04/12/2025
How long-term persistent virus infection could cause inflammatory-associated cancer in uninfected cells: Polyomavirus BKPyV www.science.org/doi/10.1126/...
science.org
Virus-induced APOBEC3 transmutagenesis in bladder cancer initiation
A model for hit-and-run viral carcinogenesis in the bladder.
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Chris Sullivan @sullivanlab.bsky.social · 04/12/2025
BK Polyomavirus (BKPyV) linked to bladder cancer via APOBEC. “Common Childhood Virus Causes DNA Damage Driving Bladder Cancer” www.insideprecisionmedicine.com/topics/oncol...
insideprecisionmedicine.com
Common Childhood Virus Causes DNA Damage Driving Bladder Cancer
The BK virus, which up to 80% of the population get infected with during childhood, can drive the development of bladder cancer down the line.
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Reposted by Chris Sullivan
Sébastien Pfeffer @sebpfeffer.bsky.social · 28/07/2025
🚨Preprint alert! Kind of a late notice, but here is our latest work on bat Dicer and viral infection. Work led by @leagaucherand.bsky.social and Hugo Marie in the lab. @cnrsbiologie.bsky.social @unistra.fr @frm-officiel.bsky.social www.biorxiv.org/content/10.1...
biorxiv.org
Dicer accumulates in cytoplasmic foci upon alphavirus infection and plays a proviral role in Myotis myotis bat cells
Bats are reservoirs for many viruses that frequently cause epidemics in humans and animals. It is thus critical to better understand their immune system and mechanisms of antiviral immunity. Despite a...
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Chris Sullivan @sullivanlab.bsky.social · 28/05/2025
If anyone is at #RNA2025, please stop by my lab’s posters on triphosphate balance and virus infection and tracking persistent infection with precision to identify viral miRNA functions. Authors Szymanik and Mojumder are really great and are presenting in the second session this Friday from 8-10.
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Chris Sullivan @sullivanlab.bsky.social · 23/05/2025
Small DNA viruses can concurrently shed via two different patterns: continuous low-level shedding of numerous reservoirs and punctuated rare high shedding from one or a few reservoirs. We hope tools presented here are useful to study other persistent pathogens. journals.plos.org/plospathogen...
journals.plos.org
Shedding dynamics of a DNA virus population during acute and long-term persistent infection
Author Summary/ Importance Polyomavirus infections, mostly benign but potentially fatal for immunocompromised individuals, undergo acute and long-term persistent infections. Typically, polyomavirus-as...
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Reposted by Chris Sullivan
SalehLab @salehlabparis.bsky.social · 20/05/2025
Stop for a second and try to imagine this: a heat shock protein relocalizes to the cell surface and mediates dsRNA binding and internalization! Intrigued? Read our newly minted paper in Science Advances www.science.org/doi/10.1126/... Congrats to all the authors and thanks to reviewers and editor!
science.org
Hsc70-4: An unanticipated mediator of dsRNA internalization in Drosophila
Hsc70-4 localizes to the cell surface of Drosophila cells, binds to exogenous dsRNA, and mediates its internalization.
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hanckslab.bsky.social @hanckslab.bsky.social · 06/05/2025
Newest: Virologs mark #RNA metabolism as an evolutionary battleground during infection - Great collaboration w/@sullivanlab.bsky.social & Kayla Szymanik @plos.org journals.plos.org/plospathogen...
journals.plos.org
Viral piracy of host RNA phosphatase DUSP11 by avipoxviruses
Author summary Viruses face a critical challenge of disabling or avoiding host immune defenses. Cells typically recognize the presence of a virus through specific molecular markers, including triphosp...
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Reposted by Chris Sullivan
The EMBO Journal @embojournal.org · 03/03/2025
New Resource Article: Joseph Ziegelbauer @drjz.bsky.social and colleagues profile cis- and trans-acting elements of viral circRNAs and identify noncanonical mechanisms underlying back-splicing - utilizing their custom-built “CHARLIE” pipeline www.embopress.org/doi/full/10....
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Stefan Rothenburg @stefanrothenburg.bsky.social · 22/04/2025
Another nice example of a host-acquired gene in poxviruses, which modulates the host immune response. dx.plos.org/10.1371/jour...
dx.plos.org
Viral piracy of host RNA phosphatase DUSP11 by avipoxviruses
Author summary Viruses face a critical challenge of disabling or avoiding host immune defenses. Cells typically recognize the presence of a virus through specific molecular markers, including triphosp...
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Chris Sullivan @sullivanlab.bsky.social · 22/04/2025
Previously, KO and overexpression showed host RNA 5’ triphosphatase DUSP11 can reduce RIG-I sensitivity. Here, we show poxviruses code for viral DUSP11 that can regulate host RNP III transcripts and RIG-I, providing evolutionary support DUSP11 can be pro-viral. journals.plos.org/plospathogen...
journals.plos.org
Viral piracy of host RNA phosphatase DUSP11 by avipoxviruses
Author summary Viruses face a critical challenge of disabling or avoiding host immune defenses. Cells typically recognize the presence of a virus through specific molecular markers, including triphosp...
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Chris Sullivan @sullivanlab.bsky.social · 07/04/2025
Happy to share our manuscript showing that a small DNA virus can concurrently shed via two different patterns: continuous low-level shedding of numerous reservoirs and punctuated rare high shedding from one or a few reservoirs. www.biorxiv.org/content/10.1...
biorxiv.org
Shedding dynamics of a DNA virus population during acute and long-term persistent infection
Although much is known of the molecular mechanisms of virus infection within cells, substantially less is understood about within-host infection. Such knowledge is key to understanding how viruses tak...
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