ArticleGenetics2023
Spenito-dependent metabolic sexual dimorphism intrinsic to fat storage cells.
Article in Genetics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 13 citations in OpenAlex.
- Sex-specific metabolic regulation by the Drosophila RNA-binding protein Nab2.bioRxiv : the preprint server for biology · 2026Article
- Sexually dimorphic ATF4 expression in the fat confers female stress tolerance in Drosophila melanogaster.Genetics · 2026Article
- Advances in Adipose Tissue Biology.Endocrine reviews · 2026Review
- Review
- Glut1 Functions in Insulin-Producing Neurons to Regulate Lipid and Carbohydrate Storage inBiomolecules · 2024Article
- Improved whole-mount immunofluorescence protocol for consistent and robust labeling of adult Drosophila melanogaster adipose tissue.Biology open · 2024Article
- Nazo, the Drosophila homolog of the NBIA-mutated protein-c19orf12, is required for triglyceride homeostasis.PLoS genetics · 2024Article
- The regulation of triglyceride and glycogen storage by Glucose transporter 1 (microPublication biology · 2024Article
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5 authors at 1 institution in 1 country.
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Abstract
Metabolism in males and females is distinct. Differences are usually linked to sexual reproduction, with circulating signals (e.g. hormones) playing major roles. In contrast, sex differences prior to sexual maturity and intrinsic to individual metabolic tissues are less understood. We analyzed Drosophila melanogaster larvae and find that males store more fat than females, the opposite of the sexual dimorphism in adults. We show that metabolic differences are intrinsic to the major fat storage tissue, including many differences in the expression of metabolic genes. Our previous work identified fat storage roles for Spenito (Nito), a conserved RNA-binding protein and regulator of sex determination. Nito knockdown specifically in the fat storage tissue abolished fat differences between males and females. We further show that Nito is required for sex-specific expression of the master regulator of sex determination, Sex-lethal (Sxl). "Feminization" of fat storage cells via tissue-specific overexpression of a Sxl target gene made larvae lean, reduced the fat differences between males and females, and induced female-like metabolic gene expression. Altogether, this study supports a model in which Nito autonomously controls sexual dimorphisms and differential expression of metabolic genes in fat cells in part through its regulation of the sex determination pathway.
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