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Megan Cooper

@macattacklab.bsky.social
784 followers 817 following 51 posts

Pediatric Rheumatology & Immunology, #immunology, #immunodeficiency, #inbornerrorsofimmunity, #genetics, all opinions my own | megancooperlab.wustl.edu

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Megan Cooper @macattacklab.bsky.social · 25/09/2026
A pleasure to work with Ofer Zimmerman & @washumedicine.bsky.social heme to make the diagnosis in this adult woman who had symptoms for two decades. TLR8 GOF is X linked DOMINANT -males & females. Our original cohorts were younger (I’m a pediatrician!) there are more older adults out there
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Journal of Human Immunity @jhumimmunity.org · 11/09/2026
Dr. Daniel Kastner, former NHGRI Scientific Director, was a visionary physician-scientist whose discoveries transformed the understanding of innate immunity and established the modern field of autoinflammatory diseases. Gupta, Goldbach-Mansk & Aksentijevich pay tribute: rupress.org/jhi/article/...
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Manish Butte @manishbutte.bsky.social · 31/08/2026
We all know recurrent infections is a hallmark of many primary immunodeficiencies, but what really is "recurrent"? In the electronic health record, recurrence is far from obvious. Aaron figured out a way to tease recurrence from the data. The impact is finding immune deficiency patients sooner. #IEI
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Journal of Human Immunity @jhumimmunity.org · 01/09/2026
#Exome sequencing can stratify the genetic risk of #CeliacDisease among first-degree relatives of affected individuals. A study from Talha Asif, Xiao-Fei Kong et al. (UT Southwestern) finds that about 10% of first-degree relatives carry a particularly high genetic risk. rupress.org/jhi/article/...
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Journal of Human Immunity @jhumimmunity.org · 26/08/2026
@pauljbaker.bsky.social, @sethlucianmasters.bsky.social et al. identify a 13-year-old male with complex symptoms including those consistent with familial chilblain lupus. This inborn error of immunity is due to a genomic translocation resulting in SAMHD1 deficiency rupress.org/jhi/article/...
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Journal of Human Immunity @jhumimmunity.org · 10/08/2026
Adenosine deaminase type 2 deficiency: from rare to common. New review from Marjon Wouters, Ivona Aksentijevich, Isabelle Meyts @isabellemeyts.bsky.social (KU Leuven) and colleagues: rupress.org/jhi/article/... #InbornErrorsOfImmunity #Autoinflammation
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Journal of Human Immunity @jhumimmunity.org · 17/08/2026
TCR γδ cell–specific STAT5 gain of function induces a druggable chronic human immune dysregulation. New study from Benedikt J. Meyer, José Pedro Loureiro, Mike Recher and colleagues @biomedizin.unibas.ch @unibas.ch: rupress.org/jhi/article/... #IEIs #InbornErrorsOfImmunity
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Journal of Human Immunity @jhumimmunity.org · 30/07/2026
Giardino et al report the first detailed immunological characterization of a DEGCAGS patient, showing that biallelic ZNF699 loss-of-function variants can cause syndromic combined #immunodeficiency & DNA methylation profiling improves diagnostic precision in selected #IEIs rupress.org/jhi/article/...
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Journal of Human Immunity @jhumimmunity.org · 03/08/2026
In a new review on DADA2, @isabellemeyts.bsky.social et al. cover the full spectrum of disease (#vasculitis, bone marrow failure, #immunodeficiency), TNF inhibitors, stem cell transplant, & #genetherapy on the horizon, the concept that a single variant can cause disease. rupress.org/jhi/article/...
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Journal of Human Immunity @jhumimmunity.org · 03/08/2026
How I Treat: Diagnostic clues and treatment for activated phosphoinositide 3-kinase delta syndrome. Hirokazu Kanegane @sciencetokyo_en, Dan Tomomasa, and Satoshi Okada propose “10 Warning Signs of APDS” for the early clinical detection of APDS: rupress.org/jhi/article/... #HowITreat #IEIs
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Turvey Lab @turveylab.bsky.social · 29/05/2026
OSMR study published! By identifying biallelic OSMR deficiency as a novel Primary Atopic Disorder, we uncover a previously unrecognized mechanism driving severe allergic disease and provide new insights into the biology of human atopy. Congratulations to an outstanding team of collaborators.
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Journal of Human Immunity @jhumimmunity.org · 02/06/2026
C5 inhibition restores B cell homeostasis and humoral immunity in #CHAPLE disease patients. New study from Azzeddine Tahiat (Rouiba Hospital, Algeria), Dusan Bogunovic @bogunoviclab.bsky.social @columbiamed.bsky.social and colleagues: rupress.org/jhi/article/... #InbornErrorsOfImmunity
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Journal of Human Immunity @jhumimmunity.org · 04/06/2026
Human germline biallelic loss-of-function OSMR variants cause severe allergic disease. New study from Simran Samra, Mehul Sharma, Stuart E. Turvey @turveylab.bsky.social and colleagues: rupress.org/jhi/article/... #Immunology #Genetics #Atopy #IEIs #InbornErrorsOfImmunity
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Journal of Human Immunity @jhumimmunity.org · 05/06/2026
How I Treat: #STAT3 hyper IgE syndrome. Clinical management guidelines proposed by Cliodhna Murray, Eyad Jannoud, Seraina Prader, and Bodo Grimbacher @uni-freiburg.de: rupress.org/jhi/article/... #HowITreat #InbornErrorsOfImmunity #IEIs
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Turvey Lab @turveylab.bsky.social · 04/06/2026
Really happy with this new paper just published in @jhumimmunity.org
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Journal of Human Immunity @jhumimmunity.org · 11/05/2026
How I Treat: Immune dysregulation in #DownSyndrome. Melissa Gans (University of Miami Miller School of Medicine) and colleagues propose actionable insights: rupress.org/jhi/article/... #HowITreat #Autoimmunity #InbornErrorsOfImmunity @bogunoviclab.bsky.social
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Journal of Human Immunity @jhumimmunity.org · 14/05/2026
Primary atopic disorders: Monogenic insights into immunity. Bhavi Modi, Stuart Turvey @turveylab.bsky.social et al. review how primary atopic disorders, a group of monogenic #InbornErrorsOfImmunity, reveal fundamental mechanisms regulating allergic #inflammation. rupress.org/jhi/article/... #Atopy
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Journal of Human Immunity @jhumimmunity.org · 14/05/2026
Functional characterization of Griscelli syndrome type 2 sine albinism in Japanese patients. New study from Tatsuhiko Tanaka, Akira Sugawara, Ko Kudo (Hirosaki University), Mitsunori Fukuda (Tohoku University) and colleagues: rupress.org/jhi/article/... #InbornErrorsOfImmunity
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Casanova Lab @casanovalab.bsky.social · 07/05/2026
Who would have thought 30 yrs ago that there would be > 50 inborn errors of immunity underlying atopy ? This has been the most insightful study of allergy: Primary atopic disorders: Monogenic insights into immunity rupress.org/jhi/article/...
rupress.org
Primary atopic disorders: Monogenic insights into immunity
Modi et al. review how primary atopic disorders, a group of monogenic inborn errors of immunity, reveal fundamental mechanisms regulating allergic inflamma
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Megan Cooper @macattacklab.bsky.social · 06/05/2026
@clinimmsoc.bsky.social Society editor Andy Snow picks off #CIS2026 with a highlight of the last year in @jhumimmunity.org
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Megan Cooper @macattacklab.bsky.social · 06/05/2026
A warm welcome from NOLA for #CIS2026 meeting! @clinimmsoc.bsky.social
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Casanova Lab @casanovalab.bsky.social · 05/05/2026
New, exciting insights onto the thymic biology and medicine of the 22q/DGS: Fibroblast-driven collagen expansion and altered thymic medullary niches in 22q11.2 deletion syndrome rupress.org/jhi/article/...
rupress.org
Fibroblast-driven collagen expansion and altered thymic medullary niches in 22q11.2 deletion syndrome
The mechanisms underlying thymic dysfunction in the 22q11.2 deletion syndrome are poorly defined. In this study, Hennings et al. integrated spatial transcr
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Megan Cooper @macattacklab.bsky.social · 05/05/2026
Looking forward to #CIS2026 @clinimmsoc.bsky.social in #NewOrleans in just 2 days - lots of great science to look forward to!
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Journal of Human Immunity @jhumimmunity.org · 04/05/2026
In a new study from Tan, Kergaravat, @petterbrodin.bsky.social et al., longitudinal profiling of 136 newborns shows thymic output peaks at 3–4 mo, correlating with plasma RANKL, lymphotoxin-α, and the TCRD variant rs2204985. rupress.org/jhi/article/...
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Journal of Human Immunity @jhumimmunity.org · 04/05/2026
HA20: an underrecognized #immunedysregulation disease affecting up to 1:14,000. Jonathan Li, Daniella M. Schwartz et al. cover diagnosis, #biomarker-guided therapy with IL-1/TNF/JAK inhibitors, and family screening: rupress.org/jhi/article/... #HowITreat #raredisease #autoinflammatory #IEI #PIRD
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Journal of Human Immunity @jhumimmunity.org · 04/05/2026
Hennings, Ekwall et al. integrated spatial transcriptomic and proteomic analyses of #thymus tissue from patients with 22q11.2 deletion syndrome to identify fibroblast-driven collagen expansion and alterations in medullary niches. rupress.org/jhi/article/... #InbornErrorsOfImmunity
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Journal of Human Immunity @jhumimmunity.org · 04/05/2026
Using clinical vignettes, Melissa Gans et al. highlight the underlying mechanisms and potential treatments for immune dysregulation in #DownSyndrome. rupress.org/jhi/article/... #HowITreat #Autoimmunity #InbornErrorsOfImmunity @bogunoviclab.bsky.social
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Immunology Podcast @immunologypodcast.com · 27/02/2026
Researchers led by Drs. Michael Gantier, Toshiyuki Shimizu, and Ben Corry show that modified #RNA from our own cells naturally blocks TLR7 and TLR8, preventing harmful immune activation. 📖: go.nature.com/4azVWjp 🔊: bit.ly/40muGA2
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Journal of Human Immunity @jhumimmunity.org · 23/04/2026
Human CD21ˡᵒT-bet⁺ B cells: Not as easy as "ABC"! New review from Stuart G. Tangye (Garvan Institute of Medical Research): rupress.org/jhi/article/... #InbornErrorsOfImmunity #Infections #AutoAntibodies
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Casanova Lab @casanovalab.bsky.social · 20/04/2026
New hope for these patients: Expanding the scope of PI3K-δ inhibition: Leniolisib treatment in PRKCD deficiency rupress.org/jhi/article/...
rupress.org
Expanding the scope of PI3K-δ inhibition: Leniolisib treatment in PRKCD deficiency
Lodi et al. report leniolisib use, a PI3Kδ inhibitor approved for APDS, in a teenager with protein kinase C δ deficiency and progressive multiorgan immune
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Megan Cooper @macattacklab.bsky.social · 20/04/2026
Excellent expert consensus for treat CGD
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Journal of Human Immunity @jhumimmunity.org · 16/04/2026
New review from Stuart G. Tangye provides an overview of the discoveries, origins, and complexities of CD21ˡᵒ B cells, and how studying inborn errors of immunity can provide a unique window to understand the molecular requirements for generating these cells. rupress.org/jhi/article/...
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Casanova Lab @casanovalab.bsky.social · 16/04/2026
A thoughtful consensus on how to manage patients with CGD: How I treat chronic granulomatous disease url: rupress.org/jhi/article/...
rupress.org
How I treat chronic granulomatous disease
The authors present their practical guide to diagnosis and treatment of chronic granulomatous disease, including the first comprehensive clinical protocol
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Casanova Lab @casanovalab.bsky.social · 16/04/2026
This is a thorough, critical, and superb Review of a complex and controversial human B cell subset, the famous "ABC" -- a must-read !👇 Human CD21loT-bet+ B cells: Not as easy as “ABC”! url: rupress.org/jhi/article/...
rupress.org
Human CD21loT-bet+ B cells: Not as easy as “ABC”!
This Review provides an overview of the discoveries, origins, and complexities of CD21lo B cells, and how studying inborn errors of immunity can provide a
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Casanova Lab @casanovalab.bsky.social · 07/04/2026
Does anyone have serum/plasma from a cohort of (ambulatory) patients with herpes zoster (shingles) ? A small cohort would be fine. We will test if they have auto-Abs against type I IFNs, as the risk of zoster increases over 50 yo. Please RT or contact me !
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Journal of Human Immunity @jhumimmunity.org · 03/04/2026
Refractory infantile #IPEX with Treg-restricted FOXP3null expression caused by a novel variant in #FOXP3. New study from Ahmad Rayes, Rosa Bacchetta and colleagues @uofuhealth.bsky.social: rupress.org/jhi/article/... #InbornErrorsOfImmunity #Autoimmunity @clinimmsoc.bsky.social
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Journal of Human Immunity @jhumimmunity.org · 03/04/2026
Familial lupus associated with a P2RY8 variant: navigating the boundary between monogenic disease and genetic susceptibility to #lupus. New report from Clémence David, Marie-Louise Frémond @institutimagine.bsky.social and colleagues: rupress.org/jhi/article/... @esidsociety.bsky.social
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Megan Cooper @macattacklab.bsky.social · 04/04/2026
1/5 Here we show in work led by Dani Arnold- 1) the first female patient with TLR8 GOF/INFLTR8- an X linked DOMINANT #inbornerrorofimmunity Clinical characteristics, management, and hematopoietic cell transplantation of patients with TLR8 gain-of-function url: ashpublications.org/bloodadvance...
ashpublications.org
Clinical characteristics, management, and hematopoietic cell transplantation of patients with TLR8 gain-of-function
Key PointsTLR8 GOF is an X-linked dominant disease that should be considered in both male and female patients with cytopenia and immune dysregulation.Patie
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Casanova Lab @casanovalab.bsky.social · 03/04/2026
One syndrome less ! Not getting the nod: The case against Yao syndrome url: rupress.org/jhi/article/...
rupress.org
Not getting the nod: The case against Yao syndrome
There are 30+ papers published on NOD2-autoinflammatory (Yao) syndrome. However, approximately one in five people is heterozygous for Yao-associated varian
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Journal of Human Immunity @jhumimmunity.org · 27/03/2026
From variants to answers: The evolution of genetic counseling in IEI. New Perspective from Blanca García-Solís, Rebeca Pérez de Diego, and Silvia Sánchez-Ramón (Hospital Clínico San Carlos): rupress.org/jhi/article/... #Diagnostics #InbornErrorsOfImmunity @esidsociety.bsky.social
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Journal of Human Immunity @jhumimmunity.org · 27/03/2026
In this Perspective, Casanova @casanovalab.bsky.social discusses the 30-year history and future implications of emerging science showing that monogenetic lesions, and #autoimmune disorders targeting the same components of host defense, can underlie the same infection. rupress.org/jhi/article/...
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Megan Cooper @macattacklab.bsky.social · 27/03/2026
Congratulations @casanovalab.bsky.social
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Journal of Human Immunity @jhumimmunity.org · 06/03/2026
Join us in congratulating our EiC Jean-Laurent Casanova on his 2026 Nemmers Prize in Medical Science! @casanovalab.bsky.social discovered the genetic causes of more than 20 infections, including severe COVID pneumonia. From @feinberg.northwestern.edu 👉 news.northwestern.edu/stories/2026...
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Journal of Human Immunity @jhumimmunity.org · 12/03/2026
Hematopoietic stem cell transplantation following invasive mold infection in chronic granulomatous disease: insights from a case series and literature review. New study from Hugo Bes-Berlandier, Fanny Lanternier @hopitalnecker.bsky.social and colleagues: rupress.org/jhi/article/... #CGD #HSCT
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Journal of Human Immunity @jhumimmunity.org · 13/03/2026
Unmanipulated bone marrow infusion without conditioning can rescue RECQL4-/- severe combined immunodeficiency. New study from Alexandra Grier and colleagues @chopresearch.bsky.social: rupress.org/jhi/article/... #ClinicalPhenotypes #immunodeficiencies #InbornErrorsOfImmunity #SCID #HSCT
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Journal of Human Immunity @jhumimmunity.org · 13/03/2026
Gervais, Trespidi, Ferrari, Rovida, Cobat, Zhang, Casanova, Borghesi et al. show that, in 13 European, Middle-Eastern, and American cohorts, pre-existing autoantibodies neutralizing type I IFNs are causal for WNV encephalitis in about 40% of patients. rupress.org/jhi/article/...
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Journal of Human Immunity @jhumimmunity.org · 27/02/2026
Novel molecular assays for monitoring T cell function after HSCT in two siblings with variants in DCLRE1C. New study from Anna Lyytikäinen, Pegah Johansson and colleagues (Sahlgrenska University Hospital): rupress.org/jhi/article/... #SCID #CellDivisionAssay #FlowCytometry #DNARepair #DSB #NHEJ
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Journal of Human Immunity @jhumimmunity.org · 02/03/2026
Our March issue is here! rupress.org/jhi/issue/2/2 In this issue, Zhou et al. (rupress.org/jhi/article/...) describe four patients with three new MCTS1 alleles. MCTS1 mutations are typically truncating and lead to complete or near-complete loss-of-function.
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Casanova Lab @casanovalab.bsky.social · 02/03/2026
1/ We are excited to report in @sciimmunology.bsky.social that human complete and selective LFA-1 deficiency causes isolated Epidermodysplasia Verruciformis (EV). This surprising phenotype revealed a surprising mechanism 🙂 www.science.org/doi/10.1126/...
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Casanova Lab @casanovalab.bsky.social · 24/02/2026
This is the first News & Views of @jhumimmunity.org and it is a must-read ! TLR7 mutations leading to enhanced TLR7 signaling in humans url: rupress.org/jhi/article/...
rupress.org
TLR7 mutations leading to enhanced TLR7 signaling in humans
Three studies in this issue of JHI extend our understanding of the genetic, molecular, and clinical characteristics of human disease associated with a gain
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