Description:This study aimed to understand the impact of 2-deoxy-D-glucose (2DG) in modulating the transcriptional and metabolomic responses of T follicular helper cells (Tfh) in a lupus-prone mouse model (W.Yaa). Thus, we analyzed the metabolomes of Tfh cells purified the spleen of W.Yaa mice treated with 2DG versus untreated controls. Data demonstrated that inhibition of glycolysis via 2DG treatment profoundly reprogrammed the metabolic pathways of splenic Tfh cells. This includes the suppression of the pentose phosphate pathway, essential for autoimmune Tfh cell expansion and the activation of mitochondrial metabolism. The reprogrammed metabolism of Tfh cells was associated with the reduction of autoantibodies and autoimmune phenotype.