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1/2 In this #JEMLegacy, we revisit a study published in 1963 by Dr. Irwin Lepow that identified C1q, C1r and C1s as subcomponents of the C1 complement complex (rupress.org/jem/article/...).
#immune #complement

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⏳ Last call for trainees & early-career investigators!
Submit an abstract, register early, and apply for a travel award for the 18th Int’l Conference on #ComplementTherapeutics (May 27–June 1, 2026 Sissi, Crete 🇬🇷).
🗓 Deadline: March 15
🔗 aegeanconferences.org/src/App/conf...
#Immunology #Complement

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🎓 Trainees & Young Investigators: Funding is available to attend the 18th Int'l Conference on #Complement #Therapeutics May 27–June 1, 2026 Sissi, Crete 🇬🇷
📢 Submit your abstract and join us!
🔗 www.aegeanconferences.org/src/App/conf...
#ComplementTherapeutics #EarlyCareerResearchers #Immunology

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Funds are still available for Trainee & Young Investigator Travel Awards!
Apply by Feb 28 for the 18th Int'l Conference on #Complement #Therapeutics
📅 05/27/2026 – 06/01/2026
📍 #Sissi, #Crete, #Greece
🏛 #KalimeraKriti Conference Center
Apply here:
aegeanconferences.org/src/App/page...

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Deadline Reminder — Feb 28
Abstracts, Trainee Travel Award applications, and early registration for the 18th Int'l Conference on Complement Therapeutics (May 27–June 1, 2026) in Sissi, Greece close Feb 28.
#Complement #Immunology #ICCT2026 www.aegeanconferences.org/src/App/conf...

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🚨FEBRUARY 2026 ISSUE ONLINE 🚨

🔬#Hyperfibrinolysis and #Complement Activation in #Trauma

🩸#VWF Variants in Type 2 #VonWillebrandDisease

🧠 Serum MPO-DNA #VTE and #Statins in Spontaneous #ICH

🫀Resting Heart Rate and Risk of #VTE

Read at tinyurl.com/yfrtaw7n

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Abstract Submission, Travel Award Applications, and Early Fee Deadline Extended to February 28. Join us at the 18th Int'l Conference on #Complement #Therapeutics www.aegeanconferences.org/src/App/conf... #Crete #Greece May 27-June 1, 2026 #ComplementTherapeutics

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Complement receptor C3ar1 deficiency does not alter brain structure or functional connectivity across early life development Lemmik et al. report that genetic deletion of C3ar1 in mice does not result in behavioural changes nor brain changes as measured by structural and function

Ever failed to replicate a widely accepted knockout mouse phenotype? You're not alone.

I can finally share our surprising null and negative findings on the complement system receptor C3aR1 in the brain: doi.org/10.1093/brai...

#nullresults #negativeresults #mri #behavior #C3aR1 #complement

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Single-cell multiome and enhancer connectome of human retinal pigment epithelium and choroid nominate causal variants in macular degeneration - PubMed Age-related macular degeneration (AMD) is a leading cause of vision loss worldwide. Genome-wide association studies (GWASs) of AMD have identified dozens of risk loci that may house disease targets.…

New Cell Reports study moves GWAS from association to causation, using single-cell multiomics to pinpoint causal variants driving macular degeneration.
#Genomics #GWAS #CausalVariants #PrecisionMed #AMD #complement buff.ly/w7b7CPU

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Systemic #complement factors in aging, #AlzheimersDisease and other dementias: a #longitudinal study over 10 years

Xiaofeng Fu, Huimin Cai, Shuiyue Quan...Longfei Jia

link.springer.com/article/10.1...

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#ALIGNMENT
#COMPLEMENT
#UNDERSTANDING
#COMMUNICATION
#AUTHENTICITY
#LOVE

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REMINDER: Submit your abstract, trainee award application, and online registration to the 18th Int'l Conference on #Complement #Therapeutics held in #Sissi, #Crete, #Greece from May 27 - June 1, 2026 www.aegeanconferences.org/src/App/conf... #complementtherapeutics

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Nanobody-based gene therapy targeting complement component C3 reduces choroidal neovascularization in mice - PubMed Wet age-related macular degeneration (wAMD) is a leading cause of vision loss and is characterized by choroidal neovascularization (CNV). Current CNV management requires multiple treatments and lacks…

A first-in-class nanobody gene therapy enables sustained, intraocular inhibition of complement C3, significantly suppressing pathological neovascularization. #GeneTherapy #AMD #Complement #Nanobodies #Biotech #VisionScience #TranslationalMedicine buff.ly/JaWxxmB

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C3 lowering in adult APP KI mice rescues synapses and spares cognitive decline - Molecular Neurodegeneration Advances Background We previously reported that germline complement C3 deletion protected cognition and hippocampal synapses in aged APP/PS1dE9 mice despite increased amyloid plaques. To assess whether global ...

C3 lowering in adult APP KI mice rescues synapses and spares cognitive decline

Brijendra Singh, Andre F. Batista, Emma T. Spooner...Cynthia A. Lemere @harvardmed.bsky.social #AlzheimersDisease #complement #amyloid #neuroinflammation

link.springer.com/article/10.1...

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Global C3 lowering in adulthood protects against hippocampal dysfunction and cognitive impairment in aged mice - Molecular Neurodegeneration Advances Background Complement component 3 (C3) is increasingly recognized for its role in neurodegenerative processes; however, its specific impact on age-related hippocampal dysfunction remains poorly unders...

Global C3 lowering in adulthood protects against hippocampal dysfunction and #cognitiveimpairment in aged mice

Andre F. Batista, Jessey Presumey, Brijendra Singh...Cynthia A. Lemere @harvardmed.bsky.social #complement #neurodegeneration

link.springer.com/article/10.1...

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The complement cascade in Alzheimer’s disease: modern implications of an ancient immune protagonist - Molecular Neurodegeneration Molecular Neurodegeneration - The complement system, a critical arm of innate immunity, has emerged as a key contributor to the pathogenesis of Alzheimer’s disease (AD). While...

The #complement cascade in #AlzheimersDisease: modern implications of an ancient #immune protagonist

Maria-Tzousi Papavergi, Praveen Bathini, Brijendra Singh & Cynthia A. Lemere @harvardmed.bsky.social

link.springer.com/article/10.1...

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Long COVID involves activation of proinflammatory and immune exhaustion pathways - Nature Immunology Long COVID (LC) involves a spectrum of chronic symptoms after resolution of acute severe acute respiratory syndrome coronavirus 2 infection. Barouch and colleagues show that LC is characterized by per...

Long #COVID (n=142)→ persistent activation of chronic #inflammation. Including proinflammatory #cytokine signaling, #complement activation, #metabolic dysregulation and immune #exhaustion. Suggestion of link between metabolic dysregulation and inflammation. go.nature.com/48UfU7B
[open access].

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Who controls type-2 immunity?

Turns out fibroblasts do , via a C3–IL-33–ILC2 axis that shapes allergic inflammation in vivo. @atakkatan.bsky.social

Our new work highlighted by @cellreports.bsky.social

#Immunology #StromalBiology #Allergy #Asthma #ILC2 #IL33 #Complement

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Complement proteins associated with circulatory and glomerular IgA-containing immune complexes in patients with IgA nephropathy - PubMed IgA nephropathy (IgAN) is characterized by glomerular deposits of IgA-containing immune complexes (IgA-ICs), which are suspected to originate from circulation. However, the composition of these ICs…

New findings reveal IgA nephropathy immune complexes carry a rich complement-protein signature with therapy-responsive markers like FHR1, opening the door to sharper biomarkers and targets. #IgAN #Nephrology #Complement #Biomarkers #Proteomics #MedTwitter buff.ly/GA7gaFq

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Trial of Pegcetacoplan in C3 Glomerulopathy and Immune-Complex MPGN | NEJM C3 glomerulopathy and primary immune-complex membranoproliferative glomerulonephritis (MPGN) generally result in glomerular C3 deposition and irreversible kidney damage. The efficacy and safety of ...

Proud of Manchester’s paediatric participation in this game-changing trial published this week in @nejm.org
A golden dawn in renal rare disease
#C3G #IC-MPGN #pegcetacoplan #complement

www.nejm.org/doi/full/10....

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Thrilled to share our work that has indeed *complemented* ongoing research in the lab!!!🙌
#complement #IL33 #fibroblast #ILC2 #airwayallergy

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Our cool new paper depicting fibroblasts more than a scaffold during airway allergy. #Il33 #ILC2 #complement

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Complement-producing adventitial fibroblasts form an IL-33 alarmin hub that maintains ILC2s during airway allergy Atakkatan et al. identify a distinct subset of C3+IL-33+ adventitial fibroblasts (AFs) that drives allergic inflammation by maintaining ILC2 responses. In turn, ILC2-derived IL-13 supports AF function...

New paper alert! We show essential role of #fibroblasts derived #complement C3 in maintaining #Il33-#ILC2 hub during airway #allergy. Congratulations to hard working Ph.D. Students @atakkatan.bsky.social @aishwaryamagesh.bsky.social www.cell.com/cell-reports... @johnshopkinsmmi.bsky.social

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Complementarity: Toward Better Metrics and Optimizing Data Efficiency in LLMs

Roy Siegelmann

Action editor: Gintare Dziugaite

https://openreview.net/forum?id=feAbrMXGMh

#complementarity #complement #generative

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FBI seeks interviews with Democrats who urged US troops to defy illegal orders Democratic lawmakers who appeared in a social media video urging U.S. troops to defy “illegal orders” say the FBI has contacted them to begin scheduling interviews, signaling a possible inquiry into t...

#KashPatel is such a clown that stupidity, it's a gift would be a #complement!!!

#FBI seeks #interviews with #Democrats who urged US #troops to #defy #illegal #orders

www.yahoo.com/news/article...

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Novel Treatment Paradigms: #Complement #Inhibition in Antineutrophil Cytoplasmic Autoantibody Vasculitis

https://doi.org/10.1016/j.ekir.2025.07.015

#KIRReview #ANCA

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Speaker roster for the 2026 #AegeanConference on Complement Therapeutics—taking place next May in Crete—is now available online!
www.aegeanconferences.org/src/App/spea...

#Complement #Neuroscience #Immunology #Therapeutics #AegeanConference2026

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You know plenty that I don't know. #complement

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