Modulation of mitochondrial and inflammatory homeostasis through RIP140 is neuroprotective in an adrenoleukodystrophy mouse model Ranea-Robles, Pablo RIP140 mitochondria oxidative stress peroxisome Se sube versión original del autor, tal y como está en el repositorio de la UPF (http://hdl.handle.net/10230/53662) Aims: Mitochondrial dysfunction and inflammation are at the core of axonal degeneration in several multifactorial neurodegenerative diseases, including multiple sclerosis, Alzheimer's disease, and Parkinson's disease. The transcriptional coregulator RIP140/NRIP1 (receptor-interacting protein 140) modulates these functions in liver and adipose tissue, but its role in the nervous system remains unexplored. Here, we investigated the impact of RIP140 in the Abcd1- mouse model of X-linked adrenoleukodystrophy (X-ALD), a genetic model of chronic axonopathy involving the convergence of redox imbalance, bioenergetic failure, and chronic inflammation. Methods and results: We provide evidence that RIP140 is modulated through a redox-dependent mechanism driven by very long-chain fatty acids (VLCFAs), the levels of which are increased in X-ALD. Genetic inactivation of RIP140 prevented mitochondrial depletion and dysfunction, bioenergetic failure, inflammatory dysregulation, axonal degeneration and associated locomotor disabilities in vivo in X-ALD mouse models. Conclusions: Together, these findings show that aberrant overactivation of RIP140 promotes neurodegeneration in X-ALD, underscoring its potential as a therapeutic target for X-ALD and other neurodegenerative disorders that present with metabolic and inflammatory dyshomeostasis. 2025-01-29T13:05:52Z 2025-01-29T13:05:52Z 2021-07-29 journal article Ranea-Robles P, Galino J, Espinosa L, Schlüter A, Ruiz M, Calingasan NY, Villarroya F, Naudí A, Pamplona R, Ferrer I, Beal MF, Portero-Otín M, Fourcade S and Pujol A. Modulation of mitochondrial and inflammatory homeostasis through RIP140 is neuroprotective in an adrenoleukodystrophy mouse model. Neuropathol Appl Neurobiol. 2022 Feb; 48(1):e12747 doi: 10.1111/nan.12747. Epub 2021 Jul 29. https://hdl.handle.net/10481/100992 10.1111/nan.12747 eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional