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Development and Validation of a Multiplex Electrochemiluminescence Immunoassay to Evaluate Dry Eye Disease in Rat Tear Fluids

Overview
Journal Sci Rep
Specialty Science
Date 2023 Jul 27
PMID 37500810
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Abstract

Dry eye disease (DED) is a challenge in ophthalmology. Rat models represent valuable tools to study the pathophysiology and to develop novel treatments. A major challenge in DED research is detecting multiple biomarkers in a low tear volume sample. Multiplex immunoassays for DED rat research are missing. We have developed a multiplex electrochemiluminescence immunoassay (ECLIA) to detect three biomarkers for DED: MMP-9, IL-17 and ICAM-1. Tears, used as matrix, were collected from six healthy Wistar rats. Assays were run based on the U-Plex Meso Scale Diagnostics (MSD) platform, by two independent operators according to the EMA guideline on bioanalytical method validation. Linear mixed, regression models were fit to perform the statistical analysis on the range of concentrations for the chosen analytes. During optimization, it has observed that incubation time, temperature and agitation affected the robustness of the protocol. ECLIA optimum conditions include the use of antibodies at 0.5 µg/ml concentration and 1 h incubation at room temperature with shaking. Precision met the acceptance criteria in the chosen range: 1062-133 pg/ml for ICAM-1, 275-34.4 pg/ml for IL-17, 1750-219 pg/ml for MMP-9. Accuracy and linearity were acceptable for a broader range. This is the first report of a validated ECLIA that allows measurements of three relevant DED biomarkers in rat tear fluids.

References
1.
Zaleska-Zmijewska A, Strzemecka E, Wawrzyniak Z, Szaflik J . Extracellular MMP-9-Based Assessment of Ocular Surface Inflammation in Patients with Primary Open-Angle Glaucoma. J Ophthalmol. 2019; 2019:1240537. PMC: 6470422. DOI: 10.1155/2019/1240537. View

2.
Garbutcheon-Singh K, Carnt N, Pattamatta U, Samarawickrama C, White A, Calder V . A Review of the Cytokine IL-17 in Ocular Surface and Corneal Disease. Curr Eye Res. 2018; 44(1):1-10. DOI: 10.1080/02713683.2018.1519834. View

3.
Auerswald H, Eng C, Lay S, In S, Eng S, Vo H . Rapid Generation of In-House Serological Assays Is Comparable to Commercial Kits Critical for Early Response to Pandemics: A Case With SARS-CoV-2. Front Med (Lausanne). 2022; 9:864972. PMC: 9121123. DOI: 10.3389/fmed.2022.864972. View

4.
Stapleton F, Alves M, Bunya V, Jalbert I, Lekhanont K, Malet F . TFOS DEWS II Epidemiology Report. Ocul Surf. 2017; 15(3):334-365. DOI: 10.1016/j.jtos.2017.05.003. View

5.
Zheng X, de Paiva C, Li D, Farley W, Pflugfelder S . Desiccating stress promotion of Th17 differentiation by ocular surface tissues through a dendritic cell-mediated pathway. Invest Ophthalmol Vis Sci. 2010; 51(6):3083-91. PMC: 2891467. DOI: 10.1167/iovs.09-3838. View