ARTICLE | Discovery & Translation
BioCentury’s roundup of translational innovations
By Danielle Golovin, Senior Biopharma Analyst
February 17, 2024 2:34 AM UTC
Harvard Medical School researchers showed the lipid globotriaosylceramide (GL-3), which is enriched in the membranes of germinal center B cells, could amplify the diversity and affinity of vaccine responses when delivered as an adjuvant.
The authors showed GL-3 promotes BCR signaling by disrupting the interaction between the B cell surface glycoprotein CD19 and its chaperone CD81, allowing CD19 to recruit and activate signaling kinases that drive affinity maturation. The glycosphingolipid also promotes expression of MHCII on germinal center B cells, facilitating the activation of T follicular helper (Tfh cells), which support B cell responses to subdominant epitopes, increasing antibody diversity…
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- Source: https://www.biocentury.com/article/651474/science-spotlight-a-germinal-center-b-cell-activating-adjuvant-peptide-conjugated-cars-and-more