Lipidome Unsaturation Affects the Morphology and Proteome of the Drosophila Eye

Mukesh Kumar, Canan Has, Khanh Lam-Kamath, Sophie Ayciriex, Deepshe Dewett, Mhamed Bashir, Clara Poupault, Kai Schuhmann, Henrik Thomas, Oskar Knittelfelder, Bharath Kumar Raghuraman, Robert Ahrends, Jens Rister (Corresponding author), Andrej Shevchenko (Corresponding author)

Publications: Contribution to journalArticlePeer Reviewed

Abstract

Organisms respond to dietary and environmental challenges by altering the molecular composition of their glycerolipids and glycerophospholipids (GPLs), which may favorably adjust the physicochemical properties of lipid membranes. However, how lipidome changes affect the membrane proteome and, eventually, the physiology of specific organs is an open question. We addressed this issue in Drosophila melanogaster, which is not able to synthesize sterols and polyunsaturated fatty acids but can acquire them from food. We developed a series of semisynthetic foods to manipulate the length and unsaturation of fatty acid moieties in GPLs and singled out proteins whose abundance is specifically affected by membrane lipid unsaturation in the Drosophila eye. Unexpectedly, we identified a group of proteins that have muscle-related functions and increased their abundances under unsaturated eye lipidome conditions. In contrast, the abundance of two stress response proteins, Turandot A and Smg5, is decreased by lipid unsaturation. Our findings could guide the genetic dissection of homeostatic mechanisms that maintain visual function when the eye is exposed to environmental and dietary challenges.

Original languageEnglish
Pages (from-to)1188-1199
Number of pages12
JournalJournal of Proteome Research
Volume23
Issue number4
Early online date14 Mar 2024
DOIs
Publication statusPublished - 5 Apr 2024

Austrian Fields of Science 2012

  • 106037 Proteomics

Keywords

  • diet
  • Drosophila
  • membrane lipid unsaturation
  • phototransduction
  • proteome
  • retina

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