Engineering T cell metabolism to enhance therapeutic efficacy

Area of Science:

• Immunology
• Cellular Metabolism
• Cancer Therapy

Background:

• Adoptive cell therapies (ACT), including chimeric antigen receptor (CAR) T cells, are potent
• living drugs
• whose efficacy is influenced by cellular metabolism.
• T cell metabolism impacts energy production, redox balance, biomass synthesis, and adaptation to stress, affecting expansion, function, persistence, and exhaustion.
• Key metabolic pathways include glycolysis, mitochondrial respiration, amino acid and lipid metabolism, and NAD-linked pathways.

Purpose of the Study:

• To explore the critical role of T cell metabolism in adoptive cell therapy outcomes.
• To highlight how metabolic state influences CAR T cell function, persistence, and therapeutic efficacy.
• To discuss the potential for therapeutic manipulation of metabolism in ACT.

Main Methods:

• Review of current literature on T cell metabolism and its impact on ACT.
• Analysis of core metabolic programs (glycolysis, mitochondrial respiration, etc.) relevant to T cell function.
• Examination of strategies for manipulating metabolism during ACT manufacturing and post-infusion.

Main Results:

• Metabolic state is a key determinant of ACT product quality and therapeutic performance.
• Specific metabolic pathways influence T cell expansion, effector function, persistence, and exhaustion.
• Metabolism can be therapeutically modulated to enhance ACT efficacy.

Conclusions:

• T cell metabolism is a controllable determinant of adoptive cell therapy success.
• Understanding and manipulating metabolic pathways can improve CAR T cell persistence, function, and long-term antitumor activity.
• A pharmacologic framework for ACT should incorporate metabolic state as a key performance factor.