GZMB+ B cells, a key factor of cell immunity in human?

International audienc

Granzyme B-secreting B cells as a potential cell therapeutic

International audienceB cells secreting granzyme B (GZMB+) with suppressive properties have been discovered in a growing number of immunological contexts, autoimmunity, chronic infection, and neoplasias, as well as in healthy volunteers under physiological conditions.To date, no phenotype has been proposed for these GZMB+ B cells, and their biology also remains uncharacterized.These data provide new insights into GZMB+ B cell biology and function that emerge as one component of a complex regulatory network. Successfully expanding these cells while maintaining their potent immunosuppressive properties provides new clues for novel future cell therapies