Establishment of Sensitive Sandwich-Type Chemiluminescence Immunoassay for Interleukin-18 in Urinary Samples

Appl Biochem Biotechnol. 2023 Dec;195(12):7414-7428. doi: 10.1007/s12010-023-04453-6. Epub 2023 Mar 31.

Abstract

Interleukin-18 (IL-18), a member of IL-1 cytokine superfamily, is deemed as an important indicator of the kidney disease. Herein a sandwich chemiluminescence immunoassay integrated with magnetic beads was conducted to detect IL-18 in kidney disease. The detection limit and linear range were 0.0044 ng/mL and 0.01-2.7 ng/mL, respectively. Satisfactory recoveries were ranged from 91.70 to 101.18% with the relative standard deviation below 10%; interference bias of most biomarkers were within allowable deviation range (± 15%). In summary, the whole study was successfully applied to detect IL-18 levels in urine samples for patients with kidney disease. The results showed that chemiluminescence immunoassay for IL-18 detection could be used in the clinical application.

Keywords: Biomarker; Chemiluminescence immunoassay; Interleukin-18; Kidney disease.

MeSH terms

  • Biomarkers
  • Humans
  • Immunoassay / methods
  • Interleukin-18*
  • Kidney Diseases*
  • Luminescence
  • Luminescent Measurements / methods

Substances

  • Interleukin-18
  • Biomarkers