Natural killer cells have an activated profile in early Parkinson's disease

J Neuroimmunol. 2023 Sep 15:382:578154. doi: 10.1016/j.jneuroim.2023.578154. Epub 2023 Jul 24.

Abstract

Immune dysregulation is heavily implicated in Parkinson's disease (PD) but the role of Natural Killer (NK) cells has not been well characterised. Accumulating evidence indicates the immune response peaks early in the disease, hence this study focused on characterising NK cells in recently diagnosed PD. PBMCs were obtained from PD cases (< 2 years duration) and age-matched controls and immunophenotyped using flow cytometry. We found an increased proportion and number of NK cells (CD3-CD56+), mature cytotoxic NK cells (CD3-CD16 + CD56dim), and NK cells expressing the activation marker, NKG2D. This implies NK cells are activated in the earliest stages of PD.

Keywords: Immune system; Natural killer cells; Parkinson's disease.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • CD56 Antigen
  • Flow Cytometry
  • Humans
  • Killer Cells, Natural
  • Parkinson Disease*

Substances

  • CD56 Antigen