Metabolic Messengers: endotrophin.

Endotrophin (ETP), the C-terminal cleavage fragment of collagen VI α3, is linked to disease progression, with elevated levels tied to fibroinflammation and tissue remodeling across organ systems.

• Why it matters: The field needs a unified understanding of how ETP is regulated and how its elevated levels relate to metabolic dysfunction, inflammation, and fibrosis in multiple diseases.
• What they did: The work synthesizes mechanistic findings from preclinical models and human studies, evaluating ETP’s roles across obesity-associated adipose dysfunction, steatotic liver disease, breast cancer, chronic kidney disease, and cardiovascular disease.
• The result: The convergence of clinical and mechanistic evidence positions ETP as a promising therapeutic target and highlights key unanswered questions and emerging intervention strategies.

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