Leucine-rich repeat kinase 2-related functions in GLIA: an update of the last years

Biochem Soc Trans. 2021 Jun 30;49(3):1375-1384. doi: 10.1042/BST20201092.

Abstract

Missense mutations in the leucine-rich repeat kinase-2 (LRRK2) gene represent the most common cause of autosomal dominant Parkinson's disease (PD). In the years LRRK2 has been associated with several organelles and related pathways in cell. However, despite the significant amount of research done in the past decade, the contribution of LRRK2 mutations to PD pathogenesis remains unknown. Growing evidence highlights that LRRK2 controls multiple processes in brain immune cells, microglia and astrocytes, and suggests that deregulated LRRK2 activity in these cells, due to gene mutation, might be directly associated with pathological mechanisms underlying PD. In this brief review, we recapitulate and update the last LRRK2 functions dissected in microglia and astrocytes. Moreover, we discuss how dysfunctions of LRRK2-related pathways may impact glia physiology and their cross-talk with neurons, thus leading to neurodegeneration and progression of PD.

Keywords: LRRK2; Parkinson's disease; astrocytes; glia; microglia.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Astrocytes / metabolism*
  • Brain / metabolism
  • Brain / pathology
  • Genetic Predisposition to Disease / genetics*
  • Humans
  • Leucine-Rich Repeat Serine-Threonine Protein Kinase-2 / genetics*
  • Leucine-Rich Repeat Serine-Threonine Protein Kinase-2 / metabolism
  • Microglia / metabolism*
  • Mutation, Missense*
  • Parkinson Disease / genetics*
  • Parkinson Disease / metabolism
  • Signal Transduction / genetics

Substances

  • Leucine-Rich Repeat Serine-Threonine Protein Kinase-2