Elevated quinolinic acid levels in cerebrospinal fluid in subacute sclerosing panencephalitis

J Neuroimmunol. 2020 Feb 15:339:577088. doi: 10.1016/j.jneuroim.2019.577088. Epub 2019 Oct 18.

Abstract

Subacute sclerosing panencephalitis (SSPE) is a rare neurodegenerative disorder caused by a persistent infection with aberrant measles virus. Indoleamine-2, 3-dioxygenase (IDO) initiates the increased production of kynurenine pathway (KP) metabolites quinolinic acid (QUIN), which has an excitotoxic effect for neurons. We measured serum IDO activity and cerebrospinal fluid (CSF) levels of QUIN. The CSF QUIN levels were significantly higher in SSPE patients than in controls, and increased according as neurological disability in a patient studied. Elevation of CSF QUIN and progression of SSPE indicate a pathological role of KP metabolism in the inflammatory neurodestruction.

Keywords: Indoleamine-2, 3-dioxygenase; Kynurenine pathway; Quinolinic acid; Subacute sclerosing panencephalitis.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Biomarkers / cerebrospinal fluid
  • Child
  • Child, Preschool
  • Electroencephalography / methods
  • Female
  • Follow-Up Studies
  • Humans
  • Male
  • Quinolinic Acid / cerebrospinal fluid*
  • Subacute Sclerosing Panencephalitis / cerebrospinal fluid*
  • Subacute Sclerosing Panencephalitis / diagnosis*
  • Subacute Sclerosing Panencephalitis / physiopathology
  • Young Adult

Substances

  • Biomarkers
  • Quinolinic Acid