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Morichon L, Hirtz C, Tiers L, Mezghrani A, Raoul C, Esselin F, La Cruz ED, Julien JP, Camu W, Lehmann S. Ultrasensitive digital immunoassays for SOD1 conformation in amyotrophic lateral sclerosis. Bioanalysis 2023; 15:927-936. [PMID: 37650499 DOI: 10.4155/bio-2023-0103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023] Open
Abstract
Aim: The aim of this study was to detect misfolded Cu/Zn SOD1 as a potential biomarker for amyotrophic lateral sclerosis (ALS). Materials & methods: Two ultrasensitive immunodetection assays were developed for the quantification of total and misfolded SOD1. Results: The detection of total and misfolded SOD1 was possible in human serum and cerebrospinal fluid. Total SOD1 was increased in cerebrospinal fluid from ALS patients. Misfolded SOD1 had low and variable expression in both control and ALS patient samples. Conclusion: These assays hold promise for improving our understanding of ALS and its detection, and could lead to more effective treatment options in the future. Further studies in larger cohorts are now required.
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Affiliation(s)
- Lisa Morichon
- LBPC-PPC, University of Montpellier, CHU Montpellier, INM INSERM, Montpellier, 34295, France
| | - Christophe Hirtz
- LBPC-PPC, University of Montpellier, CHU Montpellier, INM INSERM, Montpellier, 34295, France
| | - Laurent Tiers
- LBPC-PPC, University of Montpellier, CHU Montpellier, INM INSERM, Montpellier, 34295, France
| | | | - Cédric Raoul
- INM, University of Montpellier, INSERM, Montpellier, 34295, France
| | - Florence Esselin
- Department of Neurology, University of Montpellier, CHU Montpellier, INM, INSERM, Montpellier, 34295, France
| | - Elisa De La Cruz
- Department of Neurology, University of Montpellier, CHU Montpellier, INM, INSERM, Montpellier, 34295, France
| | - Jean-Pierre Julien
- Department of Psychiatry and Neuroscience, CERVO Brain Research Centre, University Laval, Quebec City, 23027, Canada
| | - William Camu
- Department of Neurology, University of Montpellier, CHU Montpellier, INM, INSERM, Montpellier, 34295, France
| | - Sylvain Lehmann
- LBPC-PPC, University of Montpellier, CHU Montpellier, INM INSERM, Montpellier, 34295, France
- INM, University of Montpellier, INSERM, Montpellier, 34295, France
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