Screening for neurodegeneration in Langerhans cell histiocytosis with neurofilament light in plasma

Br J Haematol. 2022 Aug;198(4):721-728. doi: 10.1111/bjh.18247. Epub 2022 May 17.

Abstract

Patients with Langerhans cell histiocytosis (LCH) may develop progressive neurodegeneration in the central nervous system (ND-CNS-LCH). Neurofilament light protein (NFL) in cerebrospinal fluid (CSF) is a promising biomarker to detect and monitor ND-CNS-LCH. We compared paired samples of NFL in plasma (p-NFL) and CSF in 10 patients (19 samples). Nine samples had abnormal CSF-NFL (defined as ≥380 ng/l) with corresponding p-NFL ≥ 2 ng/l. Ten samples had CSF-NFL < 380 ng/l; eight (80%) with p-NFL < 2 ng/l (p < 0.001; Fisher's exact test). Thus, our results suggest that p-NFL may be used to screen for ND-CNS-LCH. Further studies are encouraged, including the role of p-NFL for monitoring of ND-CNS-LCH.

Keywords: Langerhans cell histiocytosis; central nervous system (CNS); neurodegeneration; neurofilament light chain protein (NFL).

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biomarkers
  • Cognitive Dysfunction*
  • Histiocytosis, Langerhans-Cell* / diagnosis
  • Humans
  • Intermediate Filaments
  • Neurofilament Proteins / cerebrospinal fluid

Substances

  • Biomarkers
  • Neurofilament Proteins