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Venizelos Papayannopoulos

@venipap.bsky.social
17 followers 34 following 3 posts
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Venizelos Papayannopoulos @venipap.bsky.social · 21/08/2026
We've long wondered what gives NETs their branched architecture. We are excited to report that RAD51—a protein involved in DNA repair—promotes NET branching & stability, spatially restricting NETs to control type-2 inflammation. @crick.ac.uk www.science.org/doi/10.1126/...
science.org
RAD51 stabilizes neutrophil extracellular traps to compartmentalize inflammation
Neutrophil extracellular traps (NETs) feature a branched chromatin architecture whose origin and function remain unknown. We found that NET branching is mediated by RAD51, a protein generating DNA jun...
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Venizelos Papayannopoulos @venipap.bsky.social · 05/08/2026
A cathelicidin-LTB4 immunothrombosis axis drives sepsis pathology. www.science.org/doi/10.1126/...
science.org
Visualizing a lung neutrophil-platelet immunothrombosis cascade during sepsis in mice
Sepsis is an immune paradox in which host defense is necessary for survival but also contributes to organ damage and death. We defined an immunothrombosis cascade of neutrophil and platelets in the lu...
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Venizelos Papayannopoulos @venipap.bsky.social · 05/08/2026
www.science.org/doi/10.1126/...
science.org
Restored clearance of senescent neutrophils by tissue-resident macrophages limits organ aging
Aging disrupts tissue homeostasis across organ systems. Here, we identify tissue-resident macrophages (TRMs) as central coordinators of age-related organ decline through impaired clearance of senescen...
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Reposted by Venizelos Papayannopoulos
Ivan Zanoni @lozanzi.bsky.social · 20/06/2026
#WeekendRead! #ImmunometabolismPower! Choi, Biswas &co show @cp-cellhostmicrobe.bsky.social that upon Candida-driven glucose deprivation in tissues, neutrophils boost glycogenesis via Dectin-1 to maintain anti-fungal #ROS & neutrophil extracellular traps #NETs, protecting against candidiasis!
cell.com
Glycogen phosphorylase L confers metabolic flexibility in neutrophils to fight fungal infections in nutrient-deprived tissues
Neutrophils depend on glucose for their antifungal activities. Candida albicans consumes glucose, thus posing metabolic challenges for neutrophils. Choi and colleagues show that neutrophils upregulate...
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Reposted by Venizelos Papayannopoulos
Dafni Hadjieconomou @drosostalis.bsky.social · 11/01/2026
📣First preprint of the lab📣 Did that really happen?😅 Enteric neurons, aka somatic postmitotic cells, must hold on to their sex identity tight, to deliver a tuned response to signals from the ovary that instruct the animal to engage sex-matched behavioural programmes. www.biorxiv.org/content/10.6...
biorxiv.org
Genetic sex of enteric neurons enables ovarian relaxin to gate maternal gut plasticity
Animals must align intestinal plasticity and feeding with reproductive state, yet the checkpoint that gates these adaptations is unknown. Here we show that an ovary-to-enteric-neuron axis gates the on...
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