Hannah Isles

@hannah-isles.bsky.social

Scientific writer and editor https://hannahisles.com/ Former associate editor @Science Immunology Sheffield, UK 🌳

Interesting link between aging, serotonin, platelets and COVID-19 severity. A new study in Science Immunology from @iannaconelab.bsky.social and colleagues identifies platelet-derived serotonin as a driver of age-related lung pathology following SARS-CoV-2 infection. www.science.org/doi/10.1126/...

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.

science.org

I’ll be here (joint with T cell Differentiation in Tissue Microenvironments) next week! Send me a message or email if you’d like to set up a time to chat. Looking forward to an exciting meeting!

Keystone Symposia@keystonesymposia.bsky.social · 2y ago

Catch @drshrutinaik.bsky.social, @labfairfax.bsky.social, @ostunilab.bsky.social and Yasmine Belkaid for Innate Immune Memory. Submit your abstract for a poster presentation spot by Jan. 9th (11:59pm MST)! keysym.us/KSInnateImmu... #KSInnateImmune25 #keystoneconferences #innateimmunity

This week in #ScienceImmunology: Germinal Center B cells require asparagine (Asn) #metabolism for their function. GC B cells can acquire exogenous Asn from their local environment, but when Asn is limited, they utilise the enzyme asparginine synthetase. @ajclarke.bsky.social @yfy1.bsky.social

Asparagine availability controls germinal center B cell homeostasis

Asparagine metabolism is a critical regulator of germinal center B cell function.

science.org

Last week in #ScienceImmunology: An alternative approach to target TIM-3 for cancer #immunotherapy? Zhang et al. found that palmitoylation of human TIM-3 promoted its stability. Blocking palmitoylation accelerated TIM-3 degradation, prevented immune #exhaustion and promoted anti-tumor #immunity

Palmitoylation of TIM-3 promotes immune exhaustion and restrains antitumor immunity

Targeting TIM-3 palmitoylation mediated by DHHC9 enhances CAR-T cell– and NK cell–based tumor immunotherapy by suppressing immune exhaustion.

science.org