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Ivan Zanoni

@lozanzi.bsky.social
2.5K followers 209 following 575 posts

Professor at Harvard Medical School, in love with a red-haired beautiful woman, his kids... and immunology. He/him/his. 🇮🇹 🇺🇸 Views my own.

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Ivan Zanoni @lozanzi.bsky.social · 11/10/2026
#WeekendRead! #MicrobiotaPower! Yin, Mou, Tang, Zhao &co show @nature.com that Bacteroidota-derived pentadecanoid acid C15:0 #PA -a odd-chain saturated fatty acid- protects against #atherosclerosis by reducing cholesterol levels via HMG-CoA reductase inhibition as #statins do! #LipidPower!
doi.org
A gut microbial odd-chain fatty acid alleviates atherosclerosis in mice - Nature
The administration of Bacteroides uniformis in mice can mitigate atherosclerosis via pentadecanoic acid, which directly inhibits HMG-CoA reductase to promote hepatic cholesterol clearance.
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Ivan Zanoni @lozanzi.bsky.social · 10/10/2026
#WeekendRead! #EveryCellsIsAnImmuneCell! Sonnenberg, Chu, Zhou &co show @science.org that a population of gut #fibroblasts produce IGF1, dampening interferon-gamma #IFNg driven CXCL10 by ILC3s & reducing pDC recruitment, restraining gut inflammation in mouse models! This circuit is altered in #IBD!
doi.org
Fibroblasts restrain gut inflammation by IGF1-dependent regulation of innate lymphocytes
Fibroblasts exhibit phenotypic and functional heterogeneity in chronic inflammatory diseases, but how these changes impact immune outcomes remains poorly understood. We identified that a fibroblast po...
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Igor Brodsky @brodskyigorlab.bsky.social · 07/10/2026
6 days to register a comment on NIH Request for Information (RFI) on Changing Reporting Outcomes for Peer Review. They are proposing to hide the impact scores and percentiles. 🤔 funding decisions will not be transparent👎🏼. Register a comment while you still can rfi.grants.nih.gov?s=6a2b1c22c3...
rfi.grants.nih.gov
Request For Information
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William Santus @wsantus.bsky.social · 08/10/2026
Excited to finally share our interactive immunology concept map, designed as a free teaching and learning resource for instructors and students in undergraduate immunology courses! immunologymap.github.io
immunologymap.github.io
Immune Map
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William Santus @wsantus.bsky.social · 08/10/2026
Gut microbial metabolism of amino acids and its impact on enteric infections | @kanchanj.bsky.social @judith-behnsen.bsky.social journals.asm.org/doi/10.1128/...
journals.asm.org
Gut microbial metabolism of amino acids and its impact on enteric infections | Infection and Immunity
A balanced human diet comprises carbohydrates, fats, and proteins, along with vitamins and minerals, which are required to sustain physiological functions. In many Western diets, protein often takes c...
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Cadwell Lab @cadwelllab.bsky.social · 08/10/2026
Curious how viruses 🦠 impact your personal ecosystem or that of the entire 🌍? We have a fantastic speaker lineup for the Keystone on Global Virome in Health & Disease in Geneva, Feb 1–4, 2027 hubs.la/Q04xTpPb0We. Abstract deadline extended to Oct 21!
hubs.la
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Ivan Zanoni @lozanzi.bsky.social · 08/10/2026
#NoTimeToDie! Happy to share my Research Highlight @ Cell Research @natureportfolio.nature.com about a new #necroptosis to #apoptosis axis predicting #IBD relapse recently published @science.org by Murphy &co 👉 www.science.org/doi/10.1126/...
nature.com
No time to die: cell death predicts IBD relapse
Cell Research - No time to die: cell death predicts IBD relapse
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Molecular Cell @cp-molcell.bsky.social · 07/10/2026
Online Now: DNASE1L3 maintains homeostatic levels of mitochondrial DNA on the mammalian cell surface Online now:
dlvr.it
DNASE1L3 maintains homeostatic levels of mitochondrial DNA on the mammalian cell surface
Porat et al. develop cell surface ATAC-See, discovering that mitochondrial DNA is a component of the mammalian cell surface. Cell surface DNA (csDNA) on primary human and murine B cells and monocytes is removed by the secreted nuclease DNASE1L3, and dysregulation of csDNA levels is associated with autoimmunity.
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Ivan Zanoni @lozanzi.bsky.social · 07/10/2026
#ToDieOrNotToDie, that is the question! For #FerroptosisLovers & more! Chu &co show @cp-cell.bsky.social that glutathione does more than protecting from ferroptosis via #GPX4 but it is also fundamental for #FSP1-mediated protection! www.cell.com/cell/abstrac...
cell.com
A non-canonical function of glutathione to suppress ferroptosis via FSP1
Glutathione (GSH) robustly defends against ferroptosis independently of GPX4. FSP1 utilizes GSH to reduce ubiquinone and subsequently inhibits ferroptosis, which is distinct from the NAD(P)H-FAD axis....
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Ivan Zanoni @lozanzi.bsky.social · 07/10/2026
Congrats again on the beautiful work!
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Ivan Zanoni @lozanzi.bsky.social · 06/10/2026
#LocationLocationLocation! Excited for a small contribution to the new work @cp-molcell.bsky.social by @raflynn5.bsky.social, Porat &co showing that mitochondrial DNA is exposed on the plasma membrane & can be removed by DNASE1L3, aberrantly accumulating in #lupus patients!
cell.com
DNASE1L3 maintains homeostatic levels of mitochondrial DNA on the mammalian cell surface
Porat et al. develop cell surface ATAC-See, discovering that mitochondrial DNA is a component of the mammalian cell surface. Cell surface DNA (csDNA) on primary human and murine B cells and monocytes ...
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Nobel Prize @nobelprize.org · 05/10/2026
BREAKING NEWS The 2026 Nobel Prize in Physiology or Medicine has been awarded to Karl Deisseroth, Peter Hegemann and Georg Nagel “for their discoveries concerning light-gated ion channels and optogenetics.”
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Ivan Zanoni @lozanzi.bsky.social · 03/10/2026
Amazing work 💪
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Ivan Zanoni @lozanzi.bsky.social · 03/10/2026
#WeekendRead! #RememberMe! @khannakm.bsky.social @payalyokota.bsky.social &co show @nature.com that previous parasite lung infections drive chormatin programs in nerve-associated macrophages fostering type 2 & repair programs, protecting against subsequent lethal influenza infections!
nature.com
Type 2 immune history trains lung macrophages for viral disease tolerance - Nature
Type 2 inflammation trains nerve- and airway-associated macrophages to confer disease tolerance against lethal influenza by limiting immunopathology and promoting tissue repair without enhancing viral...
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Vijay G. Sankaran @bloodgenes.bsky.social · 30/09/2026
🩸🧬 Delighted to share our new @nature.com paper! Genetic studies of >28,000 people reveal a BACH2-NRF2 pathway for activating fetal hemoglobin, suggesting new tx avenues for sickle cell disease & β-thalassemia. Led by the amazing Chun-Jie Guo & co! www.nature.com/articles/s41...
nature.com
Human genetics implicates a BACH2–NRF2 axis in fetal haemoglobin activation - Nature
BACH2 restrains activation of the fetal-haemoglobin-encoding γ-globin genes, while loss of BACH2 enhances NRF2 chromatin occupancy and promotes the formation of activation foci at the γ-globin genes.
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Ivan Zanoni @lozanzi.bsky.social · 01/10/2026
Many congrats!! 💪💪💪
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Ivan Zanoni @lozanzi.bsky.social · 30/09/2026
Amazing work! Congrats to the team and happy to see this out!! 💪💪💪
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Ivan Zanoni @lozanzi.bsky.social · 26/09/2026
#WeekendRead! #WeAreWhatWeEat! @swagatag.bsky.social Yilmaz &co show @science.org that high fat diet drives ceramide accumulation in colorectal cancer #CRC cells which activate PP2A, driving #YAP regenerative/fetal transcriptional programs required for CRC liver #metastases, not primary tumors!
doi.org
Ceramide synthesis mediates colorectal cancer metastasis through a YAP-driven regenerative program
Mechanisms by which primary tumor cells acquire metastatic capability through metabolic and signaling adaptations are currently poorly understood. We demonstrate that tumor-intrinsic ceramide metaboli...
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Jonathan Kagan @jkagan1.bsky.social · 25/09/2026
Thank you to Boston Children’s Hospital for highlighting our recent publication, describing: Receptor Free Signal Transduction. www.childrenshospital.org/newsroom/med...
childrenshospital.org
Receptor-free signal transduction: Discovery of new method for inflammatory cell communication opens door for therapeutic opportunities in treating autoimmune diseases | Boston Children's Hospital
BOSTON, MA [Sept. 23, 2026] — Our understanding of how cells interact with each other has been driven for decades by the central concept of receptor-mediated
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Mauro Gaya @maurogaya.bsky.social · 23/09/2026
Very happy to see Sergio's work out. Super proud of him! And thanks to our many collaborators. I hope you enjoy it as much as we do!
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Ivan Zanoni @lozanzi.bsky.social · 24/09/2026
Many congrats!! 👏👏👏👏
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Ivan Zanoni @lozanzi.bsky.social · 24/09/2026
#InterferonPower! Will you still be around on Oct 22 in Glasgow just after #Cytokines2026 @cytokinesociety.bsky.social? Join us for this completely #free workshop on all things #TypeIIIinterferons, registration is still open!! 👉 ifnlworkshop.org
ifnlworkshop.org
IFN lambda Satellite Workshop 2026 | CRUK Glasgow
Join the IFN lambda Satellite Workshop 2026 in Glasgow. Free registration, keynote speakers, and research collaborations.
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Ivan Zanoni @lozanzi.bsky.social · 23/09/2026
A M A Z I N G work!!
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Ivan Zanoni @lozanzi.bsky.social · 23/09/2026
Amazing work Daniel! Many congrats 👏👏👏
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Ivan Zanoni @lozanzi.bsky.social · 23/09/2026
#ChangeTheDogma! #TLRpower! @jkagan1.bsky.social @danielhfisch.bsky.social &co show @nature.com that TRAM, so far believed to control endosomal TLR4 signaling & interferon #IFN production, is essential to release the #myddosome from #TIRAP & the plasma membrane allowing full NFkB signaling!
nature.com
TRAM promotes Toll-like-receptor-free myddosome signal transduction - Nature
TRAM is a regulator of myddosome assembly through dissociating MyD88 from the TLR–TIRAP complex to enable myddosome maturation and durable downstream signal transduction.
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Daniel Fisch @danielhfisch.bsky.social · 23/09/2026
Out now @nature.com! We report a new means of cell communication: receptor-free signal transduction. TLRs engage MyD88 for minutes, yet myddosomes signal for hours. TRAM releases myddosomes from TLRs, letting them mature and sustain signaling in the cytosol. rdcu.be/jGdKxErXyAsa Details below:
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Jonathan Kagan @jkagan1.bsky.social · 23/09/2026
Today, the Toll-like Receptors reveal a new mechanism of signal transduction: Receptor-Free Signal Transduction. www.nature.com/articles/s41...
nature.com
TRAM promotes Toll-like-receptor-free myddosome signal transduction - Nature
TRAM is a regulator of myddosome assembly through dissociating MyD88 from the TLR–TIRAP complex to enable myddosome maturation and durable downstream signal transduction.
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Carrie Sokol @carriesokol.bsky.social · 23/09/2026
1/ Why can you encounter an allergen repeatedly before becoming allergic to it? In our new @cp-immunity.bsky.social paper, led by the wonderful Xueping Zhu, we asked whether the sensory neurons that first detect allergens might carry a record of earlier exposures. 🧵 www.cell.com/immunity/ful...
cell.com
Sensory neuronal mTORC1 kinase signaling establishes neuroimmune memory that initiates allergic immunity
How cumulative environmental allergen exposures are encoded by peripheral sensory neurons to shape immune responsiveness is unclear. Zhu et al. show that protease allergens induce an mTORC1-dependent,...
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Ivan Zanoni @lozanzi.bsky.social · 23/09/2026
#InterferonPower! Excited for a small contribution to the fantastic work by @mehandrulab.bsky.social, Parekh &co @naturemedicine.bsky.social showing that #enterocolitis driven by B cell-targeted #CAR-T cells is associated with increased #IFN signaling & can be dampened by JAK inhibitors!
nature.com
Persistence of mucosal CAR-T cells and inflammatory remodeling in enterocolitis associated with BCMA CAR-T cell therapy - Nature Medicine
A multimodal analysis of patients with multiple myeloma who developed enterocolitis following BCMA CAR-T cell treatment shows that CAR-T cell-associated enterocolitis is not defined exclusively by pla...
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Jonathan Kagan @jkagan1.bsky.social · 22/09/2026
In 2024, we found small MyD88 clusters called proto-myddosomes forming around TLRs (link below). These clusters are released to build large signaling myddosomes. Is MyD88 release important for TLR signaling? To answer this question, we need to identify a regulator. Stay tuned...
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Jonathan Kagan @jkagan1.bsky.social · 21/09/2026
The famous oscillations of NF-kB that govern TLR-induced gene expression are well-documented. What controls these oscillations and are they important for inflammatory cytokine production?
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Jonathan Kagan @jkagan1.bsky.social · 21/09/2026
For over 20 years, the Toll-like Receptor pathway has been divided into proteins that control MyD88 and TRIF signaling events. Are these pathways really separate entities, with the only common receptor-proximal node being the receptor itself?
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Ivan Zanoni @lozanzi.bsky.social · 19/09/2026
#WeekendRead! #ImmunometabolismPower #SmartTumor! Jia, Zhang &co using in vivo CRSPR show @ #ScienceImmunology that in low glucose, tumor cells steal glutamine to produce antioxidant glutathione, preventing #mitochondrial mtDNA release, #STING activation, type I #IFN & CD8 T cell antitumor activity!
doi.org
In vivo CRISPR screens identify the glutamine transporter SLC1A5 as a metabolic barrier to antitumor immunity
A cancer cell glutamine transporter creates a metabolic barrier to antitumor immunity.
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Ivan Zanoni @lozanzi.bsky.social · 14/09/2026
Excited to be presenting a new unpublished story about how we can simultaneously prime & activate the #NLRP3 inflammasome at the Immunometabolism Across Organs Symposium 2026! #ImmunometabolsimPower #InflammasomePower!
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Ivan Zanoni @lozanzi.bsky.social · 12/09/2026
#WeekendRead! #SharingIsCaring! Keane, Finlay &co show @natcomms.nature.com that NK cells bite off CD36 to steal newly synthesized lipids from LPS-activated macrophages which in turn inhibit NK cell mTORC1 decreasing #IFNg & preventing excessive #inflammation! www.nature.com/articles/s41...
nature.com
Macrophages tune NK cell IFNγ production through direct lipid transfer - Nature Communications
The metabolic state of NK cells affects their innate immune function, and although cell-intrinsic pathways are better known, their cellular environment could provide cues that are less studied. Here t...
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Ivan Zanoni @lozanzi.bsky.social · 10/09/2026
New fantastic story by @granuccilab.bsky.social & friends just out @natimmunol.nature.com showing that #mechanosensing of pathogens precedes pattern recognition receptor #PRR activation, and to some extent competes with it! Check it out 👇👇👇
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Ivan Zanoni @lozanzi.bsky.social · 05/09/2026
#WeekendRead! #SharingIsCaring! Pena-Caruso Munoz @drusqui.bsky.social @nicolasavilalab.bsky.social &co show #ScienceImmunology that macrophages support muscle activity by taking up mitochondria from myofibroblasts that in turn tune macrophage numbers by controlling CSF1/fibroblast abundance!
science.org
Tissue mitochondrial activity dictates the macrophage pool size
Tissue mitochondrial activity controls macrophage abundance by regulating CSF1 availability, thereby enabling efficient waste removal.
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Ivan Zanoni @lozanzi.bsky.social · 04/09/2026
Many congrats to the team!! 💪💪💪
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Casanova Lab @casanovalab.bsky.social · 04/09/2026
1/ Delighted to share our paper in @jem.org today, led by Iris Fagniez and @ryangrui.bsky.social, two trainees just starting exciting new chapters in their careers: MD-PhD training at @harvardmed.bsky.social, @mit.edu, and Assistant Prof at @bcmhouston.bsky.social 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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Ivan Zanoni @lozanzi.bsky.social · 04/09/2026
Amazing work 👏👏👏
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Roychoudhuri Lab @roychoudhurilab.bsky.social · 04/09/2026
Delighted to share new work published in @science.org entitled 'Tumor-derived antioxidants suppress immunity by depriving T cells of reactive oxygen species,' led by @xanwesolowski.bsky.social in the lab science.org/eprint/YQNFA...
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Ivan Zanoni @lozanzi.bsky.social · 02/09/2026
#ChangeTheTextbook! Amazing work @nature.com by Ruaidhri Jackson, Olivia Venezia &co!! So glad to see this finally out!!👇👇👇👉 doi.org/10.1038/s415...
nature.com
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Ivan Zanoni @lozanzi.bsky.social · 02/09/2026
Congrats 🎉
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Ivan Zanoni @lozanzi.bsky.social · 01/09/2026
It was lot of fun presenting at #GITractSRC @faseborg.bsky.social in beautiful Snowbird our new story on the role of #TypeThreeInterferons in #IBD! Much looking forward to a great rest of the meeting!! #InterferonPower
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Ivan Zanoni @lozanzi.bsky.social · 29/08/2026
#WeekendRead #RememberMe! Biton, Sagi, Adir &co show @cp-immunity.bsky.social that in #colitis extracellular matrix stores inflammatory memory reshaping intestinal stem cells & driving T cell accumulation & aberrant repair! www.sciencedirect.com/science/arti...
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Iannacone Lab @iannaconelab.bsky.social · 28/08/2026
Hot off the press in Science Immunology: why COVID-19 hits older hosts harder. t.co/ByhneIMPSm Aged platelets (mouse and human) release more serotonin on activation → procoagulant platelets → fibrin in the lung → respiratory failure. 1/2
science.org
Platelet-derived serotonin drives age-related lung pathology in SARS-CoV-2 infection
In aging hosts, platelet serotonin fuels lung-damaging clots, leading to enhanced respiratory distress in the context of COVID-19.
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Ivan Zanoni @lozanzi.bsky.social · 24/08/2026
Ah, thanks Brian, yes, we will get it fixed, they re-did all the figures and we missed this one.
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Ivan Zanoni @lozanzi.bsky.social · 24/08/2026
Thanks for sharing!
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Ivan Zanoni @lozanzi.bsky.social · 22/08/2026
#WeekendRead! #LocationLocationLocation! Tsansizi, Guan, @venipap.bsky.social &co show @science.org that DNA repair protein RAD51 controls branching of neutrophil extracellular traps #NETs, preventing NET spread in the bloodstream, systemic inflammation & eosinophilia during #lung aspergillosis!
doi.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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