Dataset Information

Glutamate metabolism directs energetic trade-offs to shape host-pathogen susceptibility in Drosophila.

ABSTRACT: Individual hosts within populations often show inter-individual variation in their susceptibility to bacterial pathogen-related diseases. Utilizing Drosophila, we highlight that phenotypic variation in host-pathogen susceptibility within populations is driven by energetic trade-offs, facilitated by infection-mediated changes in glutamate metabolism. Furthermore, host-pathogen susceptibility is conditioned by life history, which adjusts immunometabolic sensing in muscles to direct vitamin-dependent reallocation of host energy substrates from the adipose tissue (i.e., a muscle-adipose tissue axis). Life history conditions inter-individual variation in the activation strength of intra-muscular NF-κB signaling. Limited intra-muscular NF-κB signaling activity allows for enhanced infection-mediated mitochondrial biogenesis and function, which stimulates glutamate dehydrogenase-dependent synthesis of glutamate. Muscle-derived glutamate acts as a systemic metabolite to promote lipid mobilization through modulating vitamin B enzymatic cofactor transport and function in the adipose tissue. This energy substrate reallocation improves pathogen clearance and boosts host survival. Finally, life history events that adjust energetic trade-offs can shape inter-individual variation in host-pathogen susceptibility after infection.

SUBMITTER: Zhao X

PROVIDER: S-EPMC9153082 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature

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Glutamate metabolism directs energetic trade-offs to shape host-pathogen susceptibility in Drosophila.

Zhao Xiao X Karpac Jason J

Cell metabolism 20211027 12

Individual hosts within populations often show inter-individual variation in their susceptibility to bacterial pathogen-related diseases. Utilizing Drosophila, we highlight that phenotypic variation in host-pathogen susceptibility within populations is driven by energetic trade-offs, facilitated by infection-mediated changes in glutamate metabolism. Furthermore, host-pathogen susceptibility is conditioned by life history, which adjusts immunometabolic sensing in muscles to direct vitamin-depende ...[more]

PMID: 34710355

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Dataset Information

Glutamate metabolism directs energetic trade-offs to shape host-pathogen susceptibility in Drosophila.

Publications

Glutamate metabolism directs energetic trade-offs to shape host-pathogen susceptibility in Drosophila.

Similar Datasets

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