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Casanova Lab

@casanovalab.bsky.social
1K followers 243 following 762 posts

We're a research lab at UT Southwestern Medical Center (TX) and Necker Hospital (Paris) studying human genetic and immunological determinants of infectious diseases. www.hgid.org

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Reposted by Casanova Lab
Journal of Human Immunity @jhumimmunity.org · 10h
#Leniolisib, a PI3Kδ inhibitor, improves the pathophysiology of APDS. In @jhumimmunity.org, Rao, Uzel @charlesuni.cuni.cz et al. demonstrate the safety and efficacy of leniolisib in patients with APDS ≥12 years of age receiving up to 7 years of treatment. rupress.org/jhi/article/...
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Casanova Lab @casanovalab.bsky.social · 9h
Another respiratory virus patients with AAb against type I IFNs should avoid: Highly neutralizing anti–IFN-ω autoantibodies underlie severe pediatric adenovirus infection rupress.org/jhi/article/...
rupress.org
Highly neutralizing anti–IFN-ω autoantibodies underlie severe pediatric adenovirus infection
A case of neutralizing anti–IFN-ω autoantibodies impairing antiviral defense and driving severe adenovirus pneumonia in a child.
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Casanova Lab @casanovalab.bsky.social · 11h
Beautiful Review on NO in human infections: Exogenous nitric oxide as an anti-infective agent rupress.org/jem/article/...
rupress.org
Exogenous nitric oxide as an anti-infective agent
The author reviews the efficacy of topical NO-releasing materials, drugs that generate NO-related moieties, and inhalation of NO gas against viral, bacteri
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Reposted by Casanova Lab
Journal of Human Immunity @jhumimmunity.org · 11h
#Leniolisib, a PI3Kδ inhibitor, improves the pathophysiology of APDS. Rao, Uzel @charlesuni.cuni.cz et al. demonstrate the safety and efficacy of leniolisib in patients with APDS ≥12 years of age receiving up to 7 years of treatment. rupress.org/jhi/article/... #InbornErrorsOfImmunity
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Reposted by Casanova Lab
Turvey Lab @turveylab.bsky.social · 13/10/2026
For children with IRF4 p.T95R combined immunodeficiency, treatment timing matters. Our new paper supports early diagnosis and consideration of hematopoietic stem cell transplantation before uncontrolled infection develops.
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Reposted by Casanova Lab
Journal of Human Immunity @jhumimmunity.org · 13/10/2026
#Autoantibodies neutralizing type I interferons in #COVID19 patients from Southern Brazil. New study from Renan César Sbruzzi, Fernanda S.L. Vianna @ufrgs.br and colleagues: rupress.org/jhi/article/... #Infections #Phenocopies @casanovalab.bsky.social
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Reposted by Casanova Lab
Journal of Human Immunity @jhumimmunity.org · 12/10/2026
How I Treat: Transplantation for primary immune regulatory diseases and inflammatory disorders. From Joseph Hai Oved @columbiamed.bsky.social: rupress.org/jhi/article/... #Infections #autoantibodies #HowITreat
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Reposted by Casanova Lab
Journal of Human Immunity @jhumimmunity.org · 09/10/2026
Stojcic et al. provide the first comprehensive description of the clinical phenotype and outcomes of all known patients w/ the heterozygous IRF4 p.T95R variant, analyzing 10 affected individuals and identifying shared clinical features, treatment responses & outcomes: rupress.org/jhi/article/...
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Reposted by Casanova Lab
Journal of Human Immunity @jhumimmunity.org · 09/10/2026
Clemmensen, Mørk, Mogensen et al. investigated the heredity of IFN-I #autoantibodies in adults in a large Danish twin cohort of 1,318 twin pairs. Overall, the data do not support a strong familial aggregation, as reflected by a low concordance rate for IFN-I auto-Abs. rupress.org/jhi/article/...
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Reposted by Casanova Lab
Journal of Human Immunity @jhumimmunity.org · 09/10/2026
Iglesias-Herrero, Schrijvers et al. longitudinally assess JAK-inhibitor treatment response in two patients w/ #STAT1 gain-of-function & show that it induces rapid but incomplete immune reconstitution, w/ increased TCR diversity and reversal of monocyte hyperinflammation. rupress.org/jhi/article/...
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Reposted by Casanova Lab
Rockefeller University Press @rupress.org · 09/10/2026
Stojcic et al. provide the first comprehensive description of the clinical phenotype and outcomes of all known patients w/ the heterozygous IRF4 p.T95R variant, analyzing 10 affected individuals and identifying shared clinical features, treatment responses & outcomes: rupress.org/jhi/article/...
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Reposted by Casanova Lab
Rockefeller University Press @rupress.org · 09/10/2026
In @jhumimmunity.org, Mogensen et al. investigated the heredity of IFN-I #autoantibodies in adults in a large Danish twin cohort of 1,318 twin pairs. Overall, the data do not support a strong familial aggregation, as reflected by a low concordance rate for IFN-I auto-Abs. rupress.org/jhi/article/...
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Casanova Lab @casanovalab.bsky.social · 09/10/2026
The natural history of a peculiar IEI: IRF4 p.T95R combined immunodeficiency: Clinical features and transplant outcomes rupress.org/jhi/article/...
rupress.org
IRF4 p.T95R combined immunodeficiency: Clinical features and transplant outcomes
This study provides the first comprehensive description of the clinical phenotype and outcomes of all known patients with the heterozygous IRF4 p.T95R vari
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Casanova Lab @casanovalab.bsky.social · 09/10/2026
The increase in prevalence of type I IFN neutralizing auto-Abs in the elderly might not be genetically driven, making its study more challenging 😉 Autoantibodies neutralizing type I interferons in older twin pairs: Low concordance rupress.org/jhi/article/...
rupress.org
Autoantibodies neutralizing type I interferons in older twin pairs: Low concordance
Here, Clemmensen et al. investigated the heredity of IFN-I auto-Abs in adults in a large Danish twin cohort of 1,318 twin pairs. Overall, the data do not s
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Casanova Lab @casanovalab.bsky.social · 09/10/2026
An important paper on the therapy of STAT1 GOF: JAK-inhibitor treatment induces rapid yet incomplete immune reconstitution in STAT1 gain-of-function rupress.org/jhi/article/...
rupress.org
JAK-inhibitor treatment induces rapid yet incomplete immune reconstitution in STAT1 gain-of-function
Iglesias-Herrero et al. longitudinally assess JAK-inhibitor treatment response in two patients with STAT1 gain-of-function and show that it induces rapid b
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Reposted by Casanova Lab
Journal of Human Immunity @jhumimmunity.org · 06/10/2026
Sbruzzi, Vianna et al. show that neutralizing #autoantibodies against type I IFNs are more frequent in severe, critical, and fatal #COVID19 cases in southern Brazil, highlighting their role in disease severity and extending global evidence to a Latin American population. rupress.org/jhi/article/...
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Casanova Lab @casanovalab.bsky.social · 06/10/2026
Autoantibodies neutralizing type I interferons in COVID-19 patients from southern Brazil rupress.org/jhi/article/...
rupress.org
Autoantibodies neutralizing type I interferons in COVID-19 patients from southern Brazil
This study shows that neutralizing autoantibodies against type I IFNs are more frequent in severe, critical, and fatal COVID-19 cases in southern Brazil, h
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Casanova Lab @casanovalab.bsky.social · 05/10/2026
How I Treat: Transplantation for primary immune regulatory diseases and inflammatory disorders rupress.org/jhi/article/...
rupress.org
How I Treat: Transplantation for primary immune regulatory diseases and inflammatory disorders
Primary immune regulatory disorders (PIRDs), autoinflammatory, and hyperinflammatory syndromes can be life-threatening and/or significantly impact quality
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Casanova Lab @casanovalab.bsky.social · 03/10/2026
NGS diagnosis of IEI in Oceania: Management change following NGS diagnosis of inborn errors of immunity: The Australasian experience rupress.org/jhi/article/...
rupress.org
Management change following NGS diagnosis of inborn errors of immunity: The Australasian experience
Swamy et al. describe an Australian/New Zealand cohort where identification of monogenic inborn errors of immunity through next-generation sequencing resul
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Casanova Lab @casanovalab.bsky.social · 01/10/2026
Management change following NGS diagnosis of inborn errors of immunity: The Australasian experience rupress.org/jhi/article/...
rupress.org
Management change following NGS diagnosis of inborn errors of immunity: The Australasian experience
Swamy et al. describe an Australian/New Zealand cohort where identification of monogenic inborn errors of immunity through next-generation sequencing resul
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Casanova Lab @casanovalab.bsky.social · 01/10/2026
Life-threatening hepatic complications in children with ADA-SCID rupress.org/jhi/article/...
rupress.org
Life-threatening hepatic complications in children with ADA-SCID
We report two cases of ADA-SCID complicated by severe hepatic manifestations, including hepatoblastoma and infantile hepatic hemangiomatosis. These cases h
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Casanova Lab @casanovalab.bsky.social · 01/10/2026
Antibody deficiency in myotonic dystrophy type 1: A differential diagnosis below the radar rupress.org/jhi/article/...
rupress.org
Antibody deficiency in myotonic dystrophy type 1: A differential diagnosis below the radar
Galli, Recher et al. describe two patients with hypogammaglobulinemia associated with myotonic dystrophy type 1 (DM1), a rare and underdiagnosed monogenic
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Casanova Lab @casanovalab.bsky.social · 29/09/2026
Thank you so much 😊🙏
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Reposted by Casanova Lab
Journal of Experimental Medicine @jem.org · 28/09/2026
Jensen, Skouboe, Gervais, Mogensen et al. report the finding of #autoantibodies neutralizing type I IFNs in the blood and/or cerebrospinal fluid in a significantly elevated fraction of adults with HSV encephalitis (5%) compared with the general population rupress.org/jem/article/...
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Reposted by Casanova Lab
Journal of Human Immunity @jhumimmunity.org · 25/09/2026
Human inborn errors of the phagocyte respiratory burst: chronic granulomatous disease and beyond. New review from Anna-Lena Neehus @alneehus.bsky.social, Vijay G. Sankaran @bloodgenes.bsky.social, Jean-Laurent Casanova @casanovalab.bsky.social, and Jacinta Bustamante: rupress.org/jhi/article/...
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Casanova Lab @casanovalab.bsky.social · 24/09/2026
Mosaic TLR8 gain-of-function in an elderly female treated with JAK inhibitor and adjunctive therapy rupress.org/jhi/article/...
rupress.org
Mosaic TLR8 gain-of-function in an elderly female treated with JAK inhibitor and adjunctive therapy
Patel et al. describe an elderly woman with severe chronic neutropenia caused by mosaic TLR8 gain-of-function. The report broadens a primarily pediatric, m
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Casanova Lab @casanovalab.bsky.social · 23/09/2026
A fatal case of Aspergillus endocarditis in a pediatric patient with STING-associated vasculopathy rupress.org/jhi/article/...
rupress.org
A fatal case of Aspergillus endocarditis in a pediatric patient with STING-associated vasculopathy
Dethier et al. describe a young girl with SAVI on prolonged JAK inhibitors who developed fatal Aspergillus endocarditis. This report illustrates the major
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Casanova Lab @casanovalab.bsky.social · 20/09/2026
The phagocyte respiratory burst beyond CGD: Human inborn errors of the phagocyte respiratory burst: Chronic granulomatous disease and beyond rupress.org/jhi/article/...
rupress.org
Human inborn errors of the phagocyte respiratory burst: Chronic granulomatous disease and beyond
This review covers the human genetic defects affecting the phagocytic respiratory burst, highlighting the dichotomy between defects of the core NADPH oxida
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Casanova Lab @casanovalab.bsky.social · 20/09/2026
Skin biopsy in adult-onset Still’s disease: A specific, rapid, and widely available diagnostic test rupress.org/jhi/article/...
rupress.org
Skin biopsy in adult-onset Still’s disease: A specific, rapid, and widely available diagnostic test
AOSD is challenging to diagnose. Chong et al. examine the clinical utility of skin biopsy, an inexpensive and widely available test, in 16 patients with AO
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Reposted by Casanova Lab
Journal of Human Immunity @jhumimmunity.org · 18/09/2026
Adult-onset Still’s disease is challenging to diagnose. Chong et al. examine the clinical utility of skin biopsy, an inexpensive & widely available test, in 16 patients and show that dyskeratotic keratinocytes in the superficial layers are useful for diagnosing #AOSD. rupress.org/jhi/article/...
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Reposted by Casanova Lab
Rockefeller University Press @rupress.org · 18/09/2026
In @jhumimmunity.org, Chong et al. examine the clinical utility of skin biopsy, an inexpensive & widely available test, in 16 patients and show that dyskeratotic keratinocytes in the superficial layers are useful for diagnosing #AOSD. rupress.org/jhi/article/...
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Reposted by Casanova Lab
Journal of Human Immunity @jhumimmunity.org · 18/09/2026
This review by @alneehus.bsky.social @bloodgenes.bsky.social @casanovalab.bsky.social & Bustamante covers the human genetic defects affecting the phagocytic respiratory burst, highlighting the dichotomy between defects of the core NADPH oxidase and of upstream regulators. rupress.org/jhi/article/...
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Casanova Lab @casanovalab.bsky.social · 16/09/2026
Endogenous and/or exogenous type I IFNs may contribute to the development of auto-Abs neutralizing type I IFNs: High prevalence of autoantibodies neutralizing type I IFNs in Japanese patients with hepatitis C rupress.org/jhi/article/...
rupress.org
High prevalence of autoantibodies neutralizing type I IFNs in Japanese patients with hepatitis C
The prevalence of autoantibodies neutralizing type I IFNs is significantly higher in Japanese patients with hepatitis C (2.7%) than in age-matched healthy
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Casanova Lab @casanovalab.bsky.social · 15/09/2026
A possible founder IRAK4 variant in Okinawa, Japan rupress.org/jhi/article/...
rupress.org
A possible founder IRAK4 variant in Okinawa, Japan
Tomomasa et al. describe that a clustering of patients with IRAK4 deficiency was identified in Okinawa Prefecture, Japan. All affected families carried the
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Casanova Lab @casanovalab.bsky.social · 11/09/2026
In Memoriam: Daniel L. Kastner, MD (1951–2026) rupress.org/jhi/article/...
rupress.org
In Memoriam: Daniel L. Kastner, MD (1951–2026)
Dr. Daniel L. Kastner, former Scientific Director of NHGRI, was a visionary physician-scientist whose discoveries transformed the understanding of innate i
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Reposted by Casanova Lab
Journal of Experimental Medicine @jem.org · 11/09/2026
Human inherited RORγT deficiency encompasses genetic heterogeneity, T cell deficiency, and clinical homogeneity. New study from Iris Fagniez, Jean-Laurent Casanova @casanovalab.bsky.social, Rui Yang @ryangrui.bsky.social @rockefeller.edu & colleagues: rupress.org/jem/article/... #Immunodeficiency
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Casanova Lab @casanovalab.bsky.social · 08/09/2026
6/ Outside the lab, @ryangrui.bsky.social is a weekend chef who enjoys sharing great food with friends (below with @zhangpeng1202.bsky.social & Wei-Te Lei), a Hyrule (Zelda) explorer, and a sports enthusiast. We are looking forward to all the discoveries you cook up in your new lab! Congratulations!
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Casanova Lab @casanovalab.bsky.social · 08/09/2026
5/ @ryangrui.bsky.social is now launching his own lab at @bcmhouston.bsky.social & Texas Children’s Hospital, supported by CPRITT & @bwfund.bsky.social, to study the mechanisms of life-threatening EBV infections, immune dysregulation, & autoantibody-mediated diseases www.bcm.edu/research/fac...
bcm.edu
The Laboratory of Genetics of Human Immunity
We are an energetic group of physicians and scientists seeking to answer a simple question: why do only a small subset of humans develop life-threatening...
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Casanova Lab @casanovalab.bsky.social · 08/09/2026
4/ @ryangrui.bsky.social completed his pediatric residency at Weill Cornell Pediatrics and his Allergy and Immunology fellowship at @bcmhouston.bsky.social and Texas Children’s Hospital. Our ongoing collaboration has yielded a study in @jem.org on RORγT deficiency rupress.org/jem/article/...
rupress.org
Human-inherited RORγT deficiency encompasses genetic heterogeneity, T cell deficiency, and clinical homogeneity
Fagniez et al. identify new patients with inherited RORγT deficiency characterized by impaired TCRα rearrangement, depletion of MAIT and iNKT cells, reduce
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Casanova Lab @casanovalab.bsky.social · 08/09/2026
3/ @ryangrui.bsky.social said “My time in @casanovalab.bsky.social and @Rockefeller.edu deeply shaped who I am, my career, and my family’s journey. The experience continues to inspire me to be a better mentor and to help the next generation of scientists become the best version of themselves.”
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Casanova Lab @casanovalab.bsky.social · 08/09/2026
2/ @ryangrui.bsky.social was a postdoc in our NY lab from 2016-21 and a visiting scholar from 2021-26. He investigated the genetic & immunological basis of human T-bet in a remarkable trilogy of papers: www.cell.com/cell/fulltex... www.science.org/doi/full/10.... rupress.org/jem/article/...
cell.com
Human T-bet Governs Innate and Innate-like Adaptive IFN-γ Immunity against Mycobacteria
Human T-bet is involved in the regulation of distinct leukocyte subsets, when compared with its mouse counterpart, with its deficiency underlying severe mycobacterial disease
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Casanova Lab @casanovalab.bsky.social · 08/09/2026
1/ Spotlight on our former trainee @ryangrui.bsky.social, a physician-scientist and Assist. Prof. at @bcmhouston.bsky.social and Texas Children’s Hospital, focused on childhood immunodeficiencies and immune dysregulation and their genetic and immunologic basis.
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Casanova Lab @casanovalab.bsky.social · 08/09/2026
Superb mechanistic insights into HYOU1 deficiency: ER proteostasis failure in HYOU1 deficiency alters B cells, neutrophils, and interferon signalling rupress.org/jhi/article/...
rupress.org
ER proteostasis failure in HYOU1 deficiency alters B cells, neutrophils, and interferon signalling
Multi-omics characterization of 2 patients with biallelic HYOU1 variants reveals that HYOU1 deficiency impairs the unfolded protein response, disrupts earl
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Casanova Lab @casanovalab.bsky.social · 08/09/2026
More news on the genetics of Celiac disease (maybe some IEI discovered in a not too distant future ?) : Linkage between HLA-B8 and HLA-DQ2.5 contributes to ancestry-dependent risk for celiac disease rupress.org/jhi/article/...
rupress.org
Linkage between HLA-B8 and HLA-DQ2.5 contributes to ancestry-dependent risk for celiac disease
Using data from the All of Us Research Program, Xin Long et al. found that HLA-DQ2.5, the major genetic risk for celiac disease, is present across diverse
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Casanova Lab @casanovalab.bsky.social · 04/09/2026
Thank you Ivan !
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Casanova Lab @casanovalab.bsky.social · 04/09/2026
27/ …@frm-officiel.bsky.social, Square Foundation, SCOR Corporate Foundation for Science, @enseignementsup-recherche.gouv.fr, Battersea & Bowery Advisory Group, WE Ford, G Caillaux & General Atlantic Foundation, @anrs-mie.bsky.social and @fondationdusouffle.bsky.social.
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Casanova Lab @casanovalab.bsky.social · 04/09/2026
26/ We are also grateful for support from: @hhmi-science.bsky.social, @rockefeller.edu, @inserm.fr, @upcite.bsky.social‬, St Giles Foundation, @niaidnews.bsky.social, @immunedeficiency.bsky.social, Stony Wold-Herbert Fund, @agencerecherche.bsky.social…
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Casanova Lab @casanovalab.bsky.social · 04/09/2026
25/ …@jrosain.bsky.social, @panhammarstrom.bsky.social, @anne-puel.bsky.social, @ryangrui.bsky.social, and others not yet on Bluesky.
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Casanova Lab @casanovalab.bsky.social · 04/09/2026
24/ We are tremendously grateful to our lab members, trainees, collaborators, physicians, patients, and their families who made this work possible. Big thanks to our coauthors: @jvellutini.bsky.social, @palterer.bsky.social, @zhangpeng1202.bsky.social…
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Casanova Lab @casanovalab.bsky.social · 04/09/2026
23/ RORγT is required for the development of multiple innate-like and conventional T-cell compartments and for lymphocyte IFN-γ responses underlying protective antimycobacterial immunity.
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