2018
DOI: 10.1016/j.cell.2018.10.001
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Distinct Regulation of Th17 and Th1 Cell Differentiation by Glutaminase-Dependent Metabolism

Abstract: SUMMARY Activated T cells differentiate into functional subsets with distinct metabolic programs. Glutaminase (GLS) converts glutamine to glutamate to support the tricarboxylic acid cycle and redox and epigenetic reactions. Here, we identify a key role for GLS in T cell activation and specification. Though GLS deficiency diminished initial T cell activation and proliferation and impaired differentiation of Th17 cells, loss of GLS also increased Tbet to promote differentiation and effector function of CD4 Th1 a… Show more

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Cited by 518 publications
(454 citation statements)
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“…Of note, while we know that CTSL can activate C3 within cells, the protease(s) or enzyme complex(es) that process C5 into active C5a and C5b are currently not defined. 72 39,43,45,73,74 Interestingly, CD46 and serum C3-deficient patients have unaltered Th2 responses and we have not been able to observe a defect in their T cell proliferation, at least upon ex vivo assessment. 48,49,68 The reason for this intimate relationship between the complosome and IFN-γ is currently not clear but may also be rooted in their close co-evolution (see below).…”
Section: The Complosome In T Cell Homeostasismentioning
confidence: 66%
“…Of note, while we know that CTSL can activate C3 within cells, the protease(s) or enzyme complex(es) that process C5 into active C5a and C5b are currently not defined. 72 39,43,45,73,74 Interestingly, CD46 and serum C3-deficient patients have unaltered Th2 responses and we have not been able to observe a defect in their T cell proliferation, at least upon ex vivo assessment. 48,49,68 The reason for this intimate relationship between the complosome and IFN-γ is currently not clear but may also be rooted in their close co-evolution (see below).…”
Section: The Complosome In T Cell Homeostasismentioning
confidence: 66%
“…Our data also showed an important decrease in TNF-α and IFN-γ-producing CD4 and CD8 T cells. Previous reports have shown that GLS null T cells failed to drive Th17-inflammatory diseases contributing to Th1 exhaustion cells over time [34]. Additionally, glutamine deprivation or deletion of SLC1A5 was shown to promote Foxp3 expression, the transcription factor of regulatory T cells [15,39].…”
Section: Discussionmentioning
confidence: 96%
“…In contrary, depletion of glutamine reduced the cytotoxic activity. In our co-culture system, it is plausible that a decreased bioavailability of glutamine is significantly hampering the cytotoxicity given that glutamine depletion blocks T cell proliferation and cytokine production [33,34]. Interestingly, in vivo administration of BPTES, a GLS inhibitor, led to a reduction on the surface expression of MHC class II and CD80 molecules, essential for antigen presentation and T cell co-stimulation [35,36], on myeloid cells recruited to the spleen than that observed in non-treated L. donovani-infected mice.…”
Section: Discussionmentioning
confidence: 99%
“…Indeed, emerging evidence reveals that specific metabolites and metabolic enzymes can modulate immune cell fate decisions. For instance, glutaminase-dependent metabolism reciprocally regulates Th1 and Th17 cell differentiation (Johnson et al, 2018). Our study suggests that development of iNKT1, but not iNKT17 cells, is dependent upon mitochondrial fusion, which may be further linked to the roles of intracellular ROS in iNKT cell subset differentiation (Pyaram et al, 2019).…”
Section: Discussionmentioning
confidence: 99%