Neural Regeneration Research ›› 2022, Vol. 17 ›› Issue (5): 1003-1004.doi: 10.4103/1673-5374.324847

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Iron, the endolysosomal system and neuroinflammation: a matter of balance

Daniel A. Bórquez, Pamela J. Urrutia, Marco T. Núñez*   

  1. Center for Biomedical Research, Faculty of Medicine, Universidad Diego Portales, Santiago, Chile (Bórquez DA)
    Department of Biology, Faculty of Sciences, Universidad de Chile, Santiago, Chile (Urrutia PJ, Núñez MT)
  • Online:2022-05-15 Published:2021-11-08
  • Contact: Marco T. Núñez, PhD, mnunez@uchile.cl.
  • Supported by:
    This work was supported by Fondo de Enlace UDP 2021 (to DAB) and FONDECYT Initiation in Research, No. 11201141 (to PJU).

Abstract: Iron accumulation and neuroinflammation are cardinal features of many neurodegenerative diseases (Urrutia et al., 2021). However, the hierarchy in the pathogenic mechanisms and the molecular connections between these processes are still obscure. In this perspective, we will discuss current evidence showing that aging, the main risk factor for neurodegenerative diseases, negatively impacts lysosomal function by triggering a paradoxical condition of iron accumulation accompanied by functional iron deficiency. This condition is self-sustaining in the neuroinflammatory process.