RRC ID 64456
Author Tiwari SK, Toshniwal AG, Mandal S, Mandal L.
Title Fatty acid β-oxidation is required for the differentiation of larval hematopoietic progenitors in Drosophila.
Journal Elife
Abstract Cell-intrinsic and extrinsic signals regulate the state and fate of stem and progenitor cells. Recent advances in metabolomics illustrate that various metabolic pathways are also important in regulating stem cell fate. However, our understanding of the metabolic control of the state and fate of progenitor cells is in its infancy. Using Drosophila hematopoietic organ: lymph gland, we demonstrate that Fatty Acid Oxidation (FAO) is essential for the differentiation of blood cell progenitors. In the absence of FAO, the progenitors are unable to differentiate and exhibit altered histone acetylation. Interestingly, acetate supplementation rescues both histone acetylation and the differentiation defects. We further show that the CPT1/whd (withered), the rate-limiting enzyme of FAO, is transcriptionally regulated by Jun-Kinase (JNK), which has been previously implicated in progenitor differentiation. Our study thus reveals how the cellular signaling machinery integrates with the metabolic cue to facilitate the differentiation program.
Volume 9
Published 2020-6-12
DOI 10.7554/eLife.53247
PII 53247
PMID 32530419
PMC PMC7347386
MeSH Acetates / pharmacology Acetylation Animals Cell Proliferation Drosophila / embryology Drosophila / metabolism Drosophila / physiology* Fatty Acids / metabolism* G2 Phase Glycolysis Hematopoiesis / drug effects Hematopoiesis / physiology* Hematopoietic Stem Cells / metabolism* Hemocytes / physiology* Histones / metabolism Larva / cytology MAP Kinase Kinase 4 / metabolism MAP Kinase Signaling System Oxidation-Reduction
IF 7.08
Drosophila DGRC#105442 DGRC#115356 DGRC#116261 DGRC#116262