E4BP4 Safeguards Brown Fat Mitochondria from Obesity-Induced Fragmentation via Ceramide Repression
Fernando Valdivieso Rivera, Vanessa de Oliveira Furino, Carlos Eduardo Pinheiro Leher, Ariane Maria Zanesco, Monara Kaélle Sérvulo Cruz Angelim, Flávia Caroline Gan, Adriana Leandra Santoro, Lara Regina-Ferreira, Giovanna Leite Santos, Tiago Tomazini Gonçalves, Luiz Osório Leiria, Pedro M. Moraes‐Vieira, Roger Frigerio Castilho, Shingo Kajimura, Marcelo Alves Silva Mori, , Carlos H. Sponton
This study identifies E4BP4 as a transcriptional repressor that prevents obesity-induced mitochondrial fragmentation in brown fat by inhibiting ceramide synthesis, improving glucose homeostasis without weight loss.
EMBO Reports · Jun 22, 2026Peer-reviewedPhysiology