Two previously unidentified cellular players in the pathogenesis of primary Sjogren’s syndrome (pSS) have been discovered: a regulatory T cell (Prdm1+eTreg) and a helper T cell (Il21+Th1). In the study, researchers also identified the transcriptional signatures of these cells and their differential dependency on the lymphotoxin/LIGHT signaling axis, which may guide future therapeutic interventions…
Protein Phosphatase 2A and Regulatory T Cell Function Researched
The serine-threonine protein phosphatase 2A (PP2A) enzyme is critical for regulatory T cells to function—without it, they don’t have the ability to suppress effector T cells and can’t protect against autoimmunity, according to new research published in Nature Immunology. Researchers found that conditional knockout mice—in which PP2A expression is knocked out only in regulatory T cells—developed…