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Olivia C. Ghirardelli Smith

@oliviacs.bsky.social
812 followers 90 following 8 posts

NIH/NIAID F30-funded MD-PhD student at the University of Minnesota. 4th year PhD student in the Masopust Lab studying how resident memory T cells communicate w/ the rest of the body. scholar.google.com/citations?user=9…

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Reposted by Olivia C. Ghirardelli Smith
Mary Elizabeth Sutherland @meharpist.bsky.social · 25/04/2025
We all know how powerful memories can feel, but new work published in @nature.com shows that the memory of being exposed to cold conditions in a specific environment can alter a mouse's whole-body metabolism 🧪 www.nature.com/articles/s41...
nature.com
Cold memories control whole-body thermoregulatory responses - Nature
Cold-sensitive engrams contribute to learned thermoregulation in mice that are returned to an environment in which they previously experienced a cold challenge, through a network formed betw...
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Olivia C. Ghirardelli Smith @oliviacs.bsky.social · 23/03/2025
Check out the case report we wrote on a fascinating case of teratoma in the testes. This case illustrates that pure mature teratomas occurring in postpubertal males cannot invariably be classified into the benign teratoma category. www.frontiersin.org/journals/onc...
frontiersin.org
Frontiers | Case Report: Prepubertal-type testicular teratoma with local metastasis in a postpubertal patient
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Reposted by Olivia C. Ghirardelli Smith
Waggoner Lab @labwaggoner.bsky.social · 13/02/2025
KLF2 maintains lineage fidelity and suppresses CD8 T cell exhaustion during acute LCMV infection www.science.org/doi/10.1126/... @science.org @nikjoshilabyale.bsky.social
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Reposted by Olivia C. Ghirardelli Smith
E John Wherry @ejohnwherry.bsky.social · 08/02/2025
YES. Need to say this loudly and often! This 2.46x is also the short-term ROI. Long-term ROI (more difficult to estimate) may ~10x. Highest for any gov't spending. And the source of discoveries necessary for all new drugs (industry important too but without NIH funded science there's no foundation)
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Reposted by Olivia C. Ghirardelli Smith
Ivan Zanoni @lozanzi.bsky.social · 01/02/2025
#WeekendRead! #LipidPower! Hugues, Sun &co show @natcomms.bsky.social that lymphatic endothelial cells #LECs modify cholesterol into oxysterols, blocking PPARg in intratumor macrophages & monocytes, making them more inflammatory thus potentiating anti-tumor T cell responses during immunotherapy!!
nature.com
Lymphatic-derived oxysterols promote anti-tumor immunity and response to immunotherapy in melanoma - Nature Communications
VEGF-C induced lymphangiogenesis combined with immunotherapy approaches can promote anti-tumor immune responses. Here the authors report that lymphaticderived oxysterols promote anti-tumor immunity an...
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Reposted by Olivia C. Ghirardelli Smith
Nature Portfolio @natureportfolio.nature.com · 01/02/2025
A study in Nature Cancer provides genetic evidence that intrinsic developmental heterogeneity can prime individual, lifelong cancer susceptibility. go.nature.com/3PZla0G #Medsky 🧪
This is figure 3, which shows TRIM28-dependent developmental heterogeneity primes cancer outcomes.
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Reposted by Olivia C. Ghirardelli Smith
Dan Kaplan @danhkaplan.bsky.social · 30/01/2025
Why scratching makes a rash worse and a potential benefit to scratching--it reduced S. aureus on skin. Andrew Liu's paper from our lab is out now at #science #neuroimmune #immunology www.science.org/doi/10.1126/...
science.org
Scratching promotes allergic inflammation and host defense via neurogenic mast cell activation
Itch is a dominant symptom in dermatitis, and scratching promotes cutaneous inflammation, thereby worsening disease. However, the mechanisms through which scratching exacerbates inflammation and wheth...
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Reposted by Olivia C. Ghirardelli Smith
Daniel McManus, PhD @danmcmanus123.bsky.social · 15/01/2025
Excited to share my PhD work from Rafi Ahmed’s lab, now published in @nature.com. We show how CD8 T cells overcome the inability to predict how long a viral infection will last by making adaptable precursor cells a priori—an elegant strategy for a non-prescient immune system! tinyurl.com/53nrpsa6
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Reposted by Olivia C. Ghirardelli Smith
Sarah Ross @sarahhross.bsky.social · 16/01/2025
#Immunology out now @science.org ILC2s contribute to glucose homeostasis. Neurons that innervate the gut from areas of the brain associated with glucose sensing can stimulate ILC2s in the gut to relocate to the pancreas upon fasting. buff.ly/42iBst0
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Reposted by Olivia C. Ghirardelli Smith
Petter Brodin @petterbrodin.bsky.social · 02/01/2025
How are durable antibody-responses to vaccines induced? News & Views paper discussing excellent new work by Cortese et al in Nature Immunology: www.nature.com/articles/s41... Megakaryocytes promote long-lived plasmablasts via direct and indirect interactions. #ImmSky #HumanImmunology
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Reposted by Olivia C. Ghirardelli Smith
Jen Gommerman @jengommerman.bsky.social · 05/01/2025
Looks like I’ll need to update my lymph node lectures. Very nice explanation for why there is preferential leukocyte recruitment to inflamed nodes. #immunosky
cell.com
Inflammation switches the chemoattractant requirements for naive lymphocyte entry into lymph nodes
Lymph node swelling is a well-known symptom of infection. A shift in the chemoattractant code controls lymphocyte recruitment from blood into inflamed lymph nodes, allowing lymphocytes to accumulate so that even rare antigen-specific cells can encounter their activating antigen.
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Reposted by Olivia C. Ghirardelli Smith
Petter Brodin @petterbrodin.bsky.social · 27/11/2024
This paper is now online: www.nature.com/articles/s41... and it is fascinating!!
nature.com
Cancer cells impair monocyte-mediated T cell stimulation to evade immunity - Nature
Inflammatory monocytes are identified as important players in T cell restimulation in the tumour microenvironment.
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Reposted by Olivia C. Ghirardelli Smith
Kavitha Scranton @kavithascranton.bsky.social · 25/11/2024
Excited for the CellSymposia "Neuro-immune Axis: Charting the Periphery" in New York City Sept 7-9, 2025, in partnership with the Allen Discovery Center for Neuroimmune Interactions! Keynotes: David Julius & @tcellogic.bsky.social. Check out the speaker list! www.cell-symposia.com/neuroimmunol...
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Reposted by Olivia C. Ghirardelli Smith
Wilhelm Lab @labwilhelm.bsky.social · 19/11/2024
Ever wondered how fasting is benefiting the adaptive immune response? In @Nature we show that #ketogenesis promotes the function of #tcell in severe respiratory viral infections by providing #ketonebodies BHB as carbon source. Final edited version: www.nature.com/articles/s41...
nature.com
Impaired ketogenesis ties metabolism to T cell dysfunction in COVID-19 - Nature
The ketone body β-hydroxybutyrate can be used as an alternative carbon source by T cells to maintain their function during severe respiratory viral infections, including infection with&...
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Reposted by Olivia C. Ghirardelli Smith
Seth Thomas Scanlon @immunoeditor.bsky.social · 19/11/2024
Another beautiful example of @victora.bsky.social 's LIPSTIC ("labeling immune partnerships by sorTagging intercellular contacts") technique in action!
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Reposted by Olivia C. Ghirardelli Smith
Waggoner Lab @labwaggoner.bsky.social · 18/11/2024
Outstanding work from @KKellermanUCCOM @JankowskiLab @CincyImmunology @CincyMSTP @RothenbergLab @CincyResearch identifying a neuroimmune circuit involving IL-4 and NaV1.8+ sensory nerves that regulates allergic inflammation in the esophagus www.biorxiv.org/content/10.1...
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Olivia C. Ghirardelli Smith @oliviacs.bsky.social · 18/11/2024
www.cell.com/neuron/fullt...
cell.com
Meningeal neutrophil immune signaling influences behavioral adaptation following threat
Wu et al. demonstrate how neutrophils, located within the protective layers of the brain, respond to social threats and modulate psychological processes. This process is governed by testosterone in a ...
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Reposted by Olivia C. Ghirardelli Smith
The Kueh lab @kuehlab.bsky.social · 18/11/2024
I made a starter pack for those of us interested in or working on T cells. Let me know if you would like to be added or know somebody that should be added. Looking forward to scientific discussions and updates on our favorite immune cell type!
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Reposted by Olivia C. Ghirardelli Smith
Buck O’Flanagan @buck-oflanagan.bsky.social · 18/11/2024
How does route of mRNA vaccination impact localization and abundance of memory T cells? shorturl.at/foBMY.
shorturl.at
Route of self-amplifying mRNA vaccination modulates the establishment of pulmonary resident memory CD8 and CD4 T cells
Intramuscular mRNA vaccination induces pulmonary resident memory T cells that can be further expanded with intranasal boosting.
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Reposted by Olivia C. Ghirardelli Smith
Petter Brodin @petterbrodin.bsky.social · 18/11/2024
Physician/scientists, let me know if you want to be added to this list: go.bsky.app/9PwKh1k
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Olivia C. Ghirardelli Smith @oliviacs.bsky.social · 18/11/2024
Ever wondered what T cell immunosurveillance of 🐭 mammary ducts looks like? Check out our image featured on the cover of Science Immunology, showing CD103+ (pink) antiviral memory T cells (cyan) w/ in the ductal epithelium 🤩
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Olivia C. Ghirardelli Smith @oliviacs.bsky.social · 18/11/2024
Beyond grateful to receive an F30 from NIAID! This award will support my training in the Masopust lab studying how resident memory T cells communicate with the rest of the body 🗣️ Thank you to many in UMN MSTP, CFI, and beyond for the support.
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