Enteric pathogens modulate metabolic homeostasis in the Drosophila melanogaster host
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Date
2022-06-30Author
Hoda, NajjarAl-Ashmar, Sarah
Qush, Abeer
Al-Asmar, Jawaher
Rashwan, Sara
Elgamal, Abdelrahman
Zeidan, Asad
Kamareddine, Layla
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On quotidian basis, living beings work out an armistice with their microbial flora and a scuffle with invading pathogens to maintain a normal state of health. Although producing virulence factors and escaping the host's immune machinery are the paramount tools used by pathogens in their “arm race” against the host; here, we provide insight into another facet of pathogenic embitterment by presenting evidence of the ability of enteric pathogens to exhibit pathogenicity through modulating metabolic homeostasis in Drosophila melanogaster. We report that Escherichia coli and Shigella sonnei orally infected flies exhibit lipid droplet deprivation from the fat body, irregular accumulation of lipid droplets in the midgut, and significant elevation of systemic glucose and triglyceride levels. Our findings indicate that these detected metabolic alterations in infected flies could be attributed to differential regulation of peptide hormones known to be crucial for lipid metabolism and insulin signaling. Gaining a proper understanding of infection-induced alterations succours in curbing the pathogenesis of enteric diseases and sets the stage for promising therapeutic approaches to quarry infection-induced metabolic disorders.
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