: The definition of cell metabolic profile is essential to ensure skeletal muscle fiber heterogeneity and to achieve a proper equilibrium between the self-renewal and commitment of satellite stem cells. Heme sustains several biological functions, including processes profoundly implicated with cell metabolism. The skeletal muscle is a significant heme-producing body compartment, but the consequences of impaired heme homeostasis on this tissue have been poorly investigated. Here, we generate a skeletal-muscle-specific feline leukemia virus subgroup C receptor 1a (FLVCR1a) knockout mouse model and show that, by sustaining heme synthesis, FLVCR1a contributes to determine the energy phenotype in skeletal muscle cells and to modulate satellite cell differentiation and muscle regeneration.

Flvcr1a deficiency promotes heme-based energy metabolism dysfunction in skeletal muscle

Mistretta, Miriam;Fiorito, Veronica;Allocco, Anna Lucia;Ammirata, Giorgia;Digiovanni, Sabrina;Porporato, Paolo Ettore;Miniscalco, Barbara;Crich, Simonetta Geninatti;Riganti, Chiara;Tolosano, Emanuela
2024-01-01

Abstract

: The definition of cell metabolic profile is essential to ensure skeletal muscle fiber heterogeneity and to achieve a proper equilibrium between the self-renewal and commitment of satellite stem cells. Heme sustains several biological functions, including processes profoundly implicated with cell metabolism. The skeletal muscle is a significant heme-producing body compartment, but the consequences of impaired heme homeostasis on this tissue have been poorly investigated. Here, we generate a skeletal-muscle-specific feline leukemia virus subgroup C receptor 1a (FLVCR1a) knockout mouse model and show that, by sustaining heme synthesis, FLVCR1a contributes to determine the energy phenotype in skeletal muscle cells and to modulate satellite cell differentiation and muscle regeneration.
2024
43
3
1
20
ALAS1; FLVCR1; FLVCR1a; heme; metabolism; skeletal muscle
Mistretta, Miriam; Fiorito, Veronica; Allocco, Anna Lucia; Ammirata, Giorgia; Hsu, Myriam Y; Digiovanni, Sabrina; Belicchi, Marzia; Napoli, Laura; Rip...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1960390
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