Intrinsic T cell glutaminolysis promotes autoimmunity in lupus-prone mice.

ABSTRACT: Glutaminolysis is enhanced in T cells of patients with lupus and in Tfh cells, a critical subset of CD4+ T cells that provide help to autoreactive B cells, in lupus mice. Glutaminolysis inhibitors reduced lupus activity in association with a decreased frequency of Th17 cells in mice. Here, we thought to determine the role of glutaminolysis in murine Tfh cells. The pharmacological inhibition of glutaminolysis with DON reduced the expression of the critical costimulatory molecule ICOS on lupus Tfh cells, in association with a reduction of autoantibody production and B cell differentiation markers. Accordingly, profound transcriptomic and metabolic changes, including a reduction of glycolysis, were induced by DON in lupus Tfh cells, whereas healthy Tfh cells showed minor changes. The T cell-s

SUBMITTER: Choi SC 

PROVIDER: S-EPMC12643493 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature