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Kari S, Bucciarelli F, Angles T, Oster AC, Cauboue P, Laviolette K, Mougenot M, Morandi E, Bernard I, Pignolet B, Bost C, Thomas J, Nogueira L, Saoudi A, Liblau R, Astier AL. Increased levels of circulating soluble CD226 in multiple sclerosis. Mult Scler 2024:13524585241234489. [PMID: 38424741 DOI: 10.1177/13524585241234489] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
BACKGROUND The glycoprotein CD226 plays a key role in regulating immune cell function. Soluble CD226 (sCD226) is increased in sera of patients with several chronic inflammatory diseases but its levels in neuroinflammatory diseases such as multiple sclerosis (MS) are unknown. OBJECTIVE To investigate the presence and functional implications of sCD226 in persons with multiple sclerosis (pwMS) and other neurological diseases. METHODS The mechanisms of sCD226 production were first investigated by analyzing CD226 surface expression levels and supernatants of CD3/CD226-coactivated T cells. The role of sCD226 on dendritic cell maturation was evaluated. The concentration of sCD226 in the sera from healthy donors (HD), pwMS, neuromyelitis optica (NMO), and Alzheimer's disease (AD) was measured. RESULTS CD3/CD226-costimulation induced CD226 shedding. Addition of sCD226 to dendritic cells during their maturation led to an increased production of the pro-inflammatory cytokine interleukin (IL)-23. We observed a significant increase in sCD226 in sera from pwMS and NMO compared to HD and AD. In MS, levels were increased in both relapsing-remitting multiple sclerosis (RRMS) and secondary-progressive multiple sclerosis (SPMS) compared to clinically isolated syndrome (CIS). CONCLUSION Our data suggest that T-cell activation leads to release of sCD226 that could promote inflammation and raises the possibility of using sCD226 as a biomarker for neuroinflammation.
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Affiliation(s)
- Saniya Kari
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Florence Bucciarelli
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Thibault Angles
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Anne-Cecile Oster
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Pauline Cauboue
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Karl Laviolette
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Madeline Mougenot
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Elena Morandi
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Isabelle Bernard
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Beatrice Pignolet
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
- CRC-SEP, Neurosciences Department, Toulouse University Hospital, Toulouse, France
| | - Chloé Bost
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
- Immunology Department Laboratory, Institut Fédératif de Biologie, Toulouse University Hospital Center, Toulouse, France
| | - Joelle Thomas
- CNRS UMR-5284, INSERM U-1314, MeLiS, Institut NeuroMyoGène, Universite de Lyon-Université Claude Bernard Lyon 1, Lyon, France
| | - Leonor Nogueira
- Laboratory of Cell Biology and Cytology, Toulouse University Hospital, Toulouse, France
| | - Abdelhadi Saoudi
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Roland Liblau
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Anne L Astier
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
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