Restricting Glycolysis Preserves T Cell Effector Functions and Augments Checkpoint Therapy

T-Lymphozyt 0301 basic medicine Diclofenac Natürliche Killerzelle QH301-705.5 ddc:540 T-Lymphocytes Interferon (gamma-) 610 Medizin 610 Glykolyse Mice Xenopus laevis 03 medical and health sciences Cell Line, Tumor Animals Humans Biology (General) Cell Proliferation Fixpunkt (Datensicherung) ddc:610 Mice, Inbred BALB C Tumor Anti-Inflammatory Agents, Non-Steroidal checkpoint; glycolysis; monocarboxylate transporters; lactate; acidification; diclofenac; T cells; NK cells; interferon gamma; tumor 3. Good health Mice, Inbred C57BL Glucose 540 Chemie Lactate Glycolysis
DOI: 10.1016/j.celrep.2019.08.068 Publication Date: 2019-10-01T14:34:32Z
ABSTRACT
•Glycolytic index in melanoma negatively correlates with response to anti-PD1 therapy•Blocking lactate transport or knock out of glycolytic genes improves checkpoint therapy•Diclofenac blocks the transporters MCT1 and MCT4 a COX-independent manner•Inhibition glycolysis by MCT blockade does not impede T cell function SummaryTumor-derived lactic acid inhibits natural killer (NK) and, thereby, tumor immunosurveillance. Here, we report that patients high expression glycolysis-related show worse progression free survival upon treatment. The non-steroidal anti-inflammatory drug (NSAID) diclofenac lowers secretion cells anti-PD1-induced killing vitro. Surprisingly, diclofenac, but other NSAIDs, turns be potent inhibitor monocarboxylate transporter 1 4 diminishes efflux. Notably, activation, viability, effector functions are preserved under treatment low glucose environment Diclofenac, aspirin, delays growth efficacy therapy vivo. Moreover, genetic suppression strongly therapy. These findings support rationale for targeting tumors together inhibitors clinical trials. Tumor-derived
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