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Feb 21, 2017

T cells support long-lived antibody-producing cells

Posted by in category: biotech/medical

If you’ve ever wondered how a vaccine given decades ago can still protect against infection, you have your plasma cells to thank. Plasma cells are long-lived B cells that reside in the bone marrow and churn out antibodies against previously encountered vaccines or pathogens.

While are vital components of the immune system, they can also be a contributor to disease, as is the case in autoimmune diseases, such as lupus and rheumatoid arthritis, and in certain cancers, such as multiple myeloma.

Now, a group led by researchers at the University of Pennsylvania School of Veterinary Medicine, has come to a better understanding of how these cells are maintained. Using a specialized type of microscope that captures the movement and interaction of cells in , the scientists observed that, in the , immune cells called regulatory T cells closely interact with plasma cells and support them. When the T cells aren’t there, plasma cells vanish.

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