Pharmacological Activation of Pyruvate Kinase M2 Inhibits CD4+ T Cell Pathogenicity and Suppresses Autoimmunity (2019) Angiari et al

Sarah94 · Nov 26, 2019

https://www.sciencedirect.com/scien...YkVGNppbP9pI1TT078oImk_VM23qUGupmxfssPwyfHxFE

Summary
Pyruvate kinase (PK) catalyzes the conversion of phosphoenolpyruvate to pyruvate during glycolysis. The PK isoform PKM2 has additional roles in regulation of gene transcription and protein phosphorylation.

PKM2 has been shown to control macrophage metabolic remodeling in inflammation, but its role in T cell biology is poorly understood. Here, we report PKM2 upregulation, phosphorylation, and nuclear accumulation in murine and human CD4+ T cells following activation in vitro.

Treatment of T cells with TEPP-46, an allosteric activator that induces PKM2 tetramerization and blocks its nuclear translocation, strongly reduces their activation, proliferation, and cytokine production by inhibiting essential signaling pathways and thus preventing the engagement of glycolysis. TEPP-46 limits the development of both T helper 17 (Th17) and Th1 cells in vitro and ameliorates experimental autoimmune encephalomyelitis (EAE) in vivo.

Overall, our results suggest that pharmacological targeting of PKM2 may represent a valuable therapeutic approach in T cell-mediated inflammation and autoimmunity.
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brf · Nov 26, 2019

Here are a couple of articles about the research.
Any relevant implications for ME?

Metabolic Switch for Inflammatory Diseases

Trinity researchers uncover critical metabolic switch for inflammatory diseases

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Pharmacological Activation of Pyruvate Kinase M2 Inhibits CD4+ T Cell Pathogenicity and Suppresses Autoimmunity (2019) Angiari et al

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Pharmacological Activation of Pyruvate Kinase M2 Inhibits CD4+ T Cell Pathogenicity and Suppresses Autoimmunity (2019) Angiari et al

Sarah94 Senior Member (Voting Rights)

brf Established Member (Voting Rights)

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