Tristram Ryan
tristramryan.bsky.social
Tristram Ryan
@tristramryan.bsky.social
Postdoctoral Research Fellow in @lozanzi.bsky.social lab, Harvard Medical School & Boston Children’s Hospital 🧫🧪
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Are you interested in #immunometabolism but not sure where to start?

Introducing our new book “Metabolites as Signals in Immunity and Inflammation”, co-edited with Zbigniew Zasłona and @lukeanthonyoneill.bsky.social (@tcddublin.bsky.social), available now.

shop.elsevier.com/books/metabo...

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Reposted by Tristram Ryan
RNA N-glycosylation enables immune evasion and homeostatic efferocytosis by chemically caging acp3U. Excited to report this work lead by Vinnie @vinnieviruses.bsky.social and in collaboration with @vijayrathinam.bsky.social in @nature.com www.nature.com/articles/s41...
August 6, 2025 at 3:36 PM
Reposted by Tristram Ryan
#EpigeneticPower! 💥 #NewPaperAlert! We show @cp-immunity.bsky.social that endogenous oxidized lipids decide whether host survives or dies during #sepsis, #ARDS, or Staph infection! Ox lipids bind & inhibit #AKT, boosting inhibitory H3K27 methylation via EZH2 & blocking #IL10!
Epigenetic silencing of interleukin-10 by host-derived oxidized phospholipids supports a lethal inflammatory response to infections
Upon pathogen detection, phagocytes trigger immunity. This process induces tissue stress and the formation of host-derived molecules that further tune immune responses. We show that host-derived oxidi...
dlvr.it
July 17, 2025 at 3:35 PM
Reposted by Tristram Ryan
Are you interested in #immunometabolism but not sure where to start?

Introducing our new book “Metabolites as Signals in Immunity and Inflammation”, co-edited with Zbigniew Zasłona and @lukeanthonyoneill.bsky.social (@tcddublin.bsky.social), available now.

shop.elsevier.com/books/metabo...

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July 10, 2025 at 3:26 PM
Reposted by Tristram Ryan
Immune cells contribute to thrombosis in mouse models - but what about human disease? We used scRNA Sequencing, flow cytometry and histology to better understand immune cells in human stroke thrombi www.sciencedirect.com/science/arti... now online @cp-immunity.bsky.social
Immunothrombolytic monocyte-neutrophil axes dominate the single-cell landscape of human thrombosis and correlate with thrombus resolution
Thrombotic diseases remain the major cause of death and disability worldwide, and the contribution of inflammation is increasingly recognized. Thrombo…
www.sciencedirect.com
April 24, 2025 at 8:05 PM
Reposted by Tristram Ryan
Very happy to contribute another @bloodjournal.bsky.social cover with our story on aging platelets:
ashpublications.org/blood/articl...
Thoughtful commentary by Laura Gutiérrez in the issue as well.
Aging platelets shift their hemostatic properties to inflammatory functions
Key PointsPlatelets change their phenotype as they age in circulation, skewing toward inflammatory function over time.Genetic models of increased platelet
ashpublications.org
April 3, 2025 at 8:36 PM
Reposted by Tristram Ryan
#InterferonFriendOrFoe?! Klein @kahlenberglab.bsky.social &co show Science Immunology that UV drives mitochondrial Z-DNA to induce type I & III IFNs in keratinocytes. IFN-I upregulates ZBP1 that binds Z-DNA activating cGAS-STING to boost IFNs, photosensitivity & inflammation in #Lupus skin!
Epidermal ZBP1 stabilizes mitochondrial Z-DNA to drive UV-induced IFN signaling in autoimmune photosensitivity
ZBP1 and mitochondrial Z-DNA drive autoimmune photosensitivity via cGAS-STING activation.
www.science.org
March 7, 2025 at 10:32 PM
Reposted by Tristram Ryan
Pleased to share our latest paper in Science Advances on myeloid cell ‘trained hypercoagulability’! 🚀 Project led by @aislingrehill.bsky.social - huge thanks to our collaborators & funders @tcddublin.bsky.social @researchireland.bsky.social CHI and HRB Ireland tinyurl.com/df4fsrrx
Trained immunity causes myeloid cell hypercoagulability
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tinyurl.com
March 7, 2025 at 7:28 PM
Reposted by Tristram Ryan
#WeekendRead! #WeAreWhatWeEat! Lesbats, Garaude &co show @nature.com that macrophages recycle phagocytosed bacteria to fuel their metabolism but that dead, compared to live, bacteria still feed macrophages but reduce the induction of ROS & the secretion of IL1b! www.nature.com/articles/s41...
Macrophages recycle phagocytosed bacteria to fuel immunometabolic responses - Nature
Phagocytosed bacteria can serve as an alternative nutrient source for macrophages, influencing their metabolic and immune responses through the recycling of microbial components, with the process regu...
www.nature.com
March 1, 2025 at 3:40 PM
Reposted by Tristram Ryan
Leaving Boston in a few days after a productive time in the Zanoni Lab at @bostonchildrens.bsky.social and Harvard Medical School. Huge thanks to Ivan @lozanzi.bsky.social and the whole lab for their support and inspiration. I will miss you all! Excited to keep working together on cool science! 🤩
#Bittersweet! Today we say goodbye to Tomi Kostevc, an amazingly talented international PhD student in the lab that did an amazing work on #DendriticCell biology (#FirstLove!)! Physically back to @ChariteBerlin @CharitePhdnet, but we will keep doing more cool #science together 😎!!
November 27, 2024 at 7:47 PM