1
|
Chunder R, Schropp V, Marzin M, Amor S, Kuerten S. A Dual Role of Osteopontin in Modifying B Cell Responses. Biomedicines 2023; 11:1969. [PMID: 37509608 PMCID: PMC10377065 DOI: 10.3390/biomedicines11071969] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/06/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
The occurrence of B cell aggregates within the central nervous system (CNS) has prompted the investigation of the potential sources of pathogenic B cell and T cell responses in a subgroup of secondary progressive multiple sclerosis (MS) patients. Nevertheless, the expression profile of molecules associated with these aggregates and their role in aggregate development and persistence is poorly described. Here, we focused on the expression pattern of osteopontin (OPN), which is a well-described cytokine, in MS brain tissue. Autopsied brain sections from MS cases with and without B cell pathology were screened for the presence of CD20+ B cell aggregates and co-expression of OPN. To demonstrate the effect of OPN on B cells, flow cytometry, ELISA and in vitro aggregation assays were conducted using the peripheral blood of healthy volunteers. Although OPN was expressed in MS brain tissue independent of B cell pathology, it was also highly expressed within B cell aggregates. In vitro studies demonstrated that OPN downregulated the co-stimulatory molecules CD80 and CD86 on B cells. OPN-treated B cells produced significantly lower amounts of IL-6. However, OPN-treated B cells also exhibited a higher tendency to form homotypic cell aggregates in vitro. Taken together, our data indicate a conflicting role of OPN in modulating B cell responses.
Collapse
Affiliation(s)
- Rittika Chunder
- Faculty of Medicine, Institute of Neuroanatomy, University of Bonn, 53115 Bonn, Germany
- University Hospital Bonn, 53127 Bonn, Germany
- Institute of Anatomy and Cell Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Verena Schropp
- Faculty of Medicine, Institute of Neuroanatomy, University of Bonn, 53115 Bonn, Germany
- University Hospital Bonn, 53127 Bonn, Germany
- Institute of Anatomy and Cell Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Manuel Marzin
- Department of Pathology, Amsterdam University Medical Center, 1007 MB Amsterdam, The Netherlands
| | - Sandra Amor
- Department of Pathology, Amsterdam University Medical Center, 1007 MB Amsterdam, The Netherlands
- Institute of Anatomy, Rostock University Medical Center, 18057 Rostock, Germany
| | - Stefanie Kuerten
- Faculty of Medicine, Institute of Neuroanatomy, University of Bonn, 53115 Bonn, Germany
- University Hospital Bonn, 53127 Bonn, Germany
- Institute of Anatomy and Cell Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| |
Collapse
|
2
|
Chunder R, Schropp V, Jabari S, Marzin M, Amor S, Kuerten S. Identification of a novel role for matrix metalloproteinase-3 in the modulation of B cell responses in multiple sclerosis. Front Immunol 2022; 13:1025377. [PMID: 36389698 PMCID: PMC9644161 DOI: 10.3389/fimmu.2022.1025377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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] [Received: 08/22/2022] [Accepted: 09/26/2022] [Indexed: 07/30/2023] Open
Abstract
There has been a growing interest in the presence and role of B cell aggregates within the central nervous system of multiple sclerosis patients. However, very little is known about the expression profile of molecules associated with these aggregates and how they might be influencing aggregate development or persistence in the brain. The current study focuses on the effect of matrix metalloproteinase-3, which is associated with B cell aggregates in autopsied multiple sclerosis brain tissue, on B cells. Autopsied brain sections from multiple sclerosis cases and controls were screened for the presence of CD20+ B cell aggregates and expression of matrix metalloproteinase-3. Using flow cytometry, enzyme-linked immunosorbent assay and gene array as methods, in vitro studies were conducted using peripheral blood of healthy volunteers to demonstrate the effect of matrix metalloproteinase-3 on B cells. Autopsied brain sections from multiple sclerosis patients containing aggregates of B cells expressed a significantly higher amount of matrix metalloproteinase-3 compared to controls. In vitro experiments demonstrated that matrix metalloproteinase-3 dampened the overall activation status of B cells by downregulating CD69, CD80 and CD86. Furthermore, matrix metalloproteinase-3-treated B cells produced significantly lower amounts of interleukin-6. Gene array data confirmed that matrix metalloproteinase-3 altered the proliferation and survival profiles of B cells. Taken together, out data indicate a role for B cell modulatory properties of matrix metalloproteinase-3.
Collapse
Affiliation(s)
- Rittika Chunder
- Institute of Neuroanatomy, Medical Faculty, University of Bonn, Bonn, Germany
- Institute of Anatomy and Cell Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Verena Schropp
- Institute of Neuroanatomy, Medical Faculty, University of Bonn, Bonn, Germany
- Institute of Anatomy and Cell Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Samir Jabari
- Institute of Neuropathology, University Hospitals Erlangen, Erlangen, Germany
| | - Manuel Marzin
- Department of Pathology, Amsterdam University Medical Center, Amsterdam, Netherlands
| | - Sandra Amor
- Department of Pathology, Amsterdam University Medical Center, Amsterdam, Netherlands
| | - Stefanie Kuerten
- Institute of Neuroanatomy, Medical Faculty, University of Bonn, Bonn, Germany
- Institute of Anatomy and Cell Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| |
Collapse
|
3
|
Fernández Blanco L, Marzin M, Leistra A, van der Valk P, Nutma E, Amor S. Immunopathology of the Optic Nerve in Multiple Sclerosis. Clin Exp Immunol 2022; 209:236-246. [PMID: 35778909 DOI: 10.1093/cei/uxac063] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 06/08/2022] [Accepted: 06/30/2022] [Indexed: 11/14/2022] Open
Abstract
Optic neuritis, a primary clinical manifestation commonly observed in multiple sclerosis (MS) is a major factor leading to permanent loss of vision. Despite decreased vision (optic neuritis), diplopia, and nystagmus, the immunopathology of the optic nerve in MS is unclear. Here, we have characterised the optic nerve pathology in a large cohort of MS cases (n=154), focusing on the immune responses in a sub-cohort of MS (n=30) and control (n=6) cases. Immunohistochemistry was used to characterise the myeloid (HLA-DR, CD68, Iba1, TMEM119, P2RY12) and adaptive immune cells (CD4, CD8, CD138) in the parenchyma, perivascular spaces, and meninges in optic nerve tissues from MS and control cases. Of the 154 MS cases, 122 (79%) reported visual problems of which 99 (81%) optic nerves showed evidence of damage. Of the 31 cases with no visual disturbances, 19 (61%) showed evidence of pathology. A pattern of myeloid cell activity and demyelination in the optic nerve was similar to white matter lesions in the brain and spinal cord. In the optic nerves, adaptive immune cells were more abundant in the meninges close to active and chronic active lesions, and significantly higher compared to the parenchyma. Similar to brain tissues in this Dutch cohort, B-cell follicles in the meninges were absent. Our study reveals that optic nerve pathology is a frequent event in MS and may occur in the absence of clinical symptoms.
Collapse
Affiliation(s)
| | - Manuel Marzin
- Department of Pathology, Amsterdam UMC, Location VUmc, Amsterdam, The Netherlands
| | - Alida Leistra
- Department of Pathology, Amsterdam UMC, Location VUmc, Amsterdam, The Netherlands
| | - Paul van der Valk
- Department of Pathology, Amsterdam UMC, Location VUmc, Amsterdam, The Netherlands
| | - Erik Nutma
- Department of Pathology, Amsterdam UMC, Location VUmc, Amsterdam, The Netherlands
| | - Sandra Amor
- Department of Pathology, Amsterdam UMC, Location VUmc, Amsterdam, The Netherlands.,Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| |
Collapse
|
4
|
Amor S, Nutma E, Marzin M, Puentes F. Imaging immunological processes from blood to brain in amyotrophic lateral sclerosis. Clin Exp Immunol 2021; 206:301-313. [PMID: 34510431 PMCID: PMC8561688 DOI: 10.1111/cei.13660] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/18/2021] [Accepted: 08/29/2021] [Indexed: 12/12/2022] Open
Abstract
Neuropathology studies of amyotrophic lateral sclerosis (ALS) and animal models of ALS reveal a strong association between aberrant protein accumulation and motor neurone damage, as well as activated microglia and astrocytes. While the role of neuroinflammation in the pathology of ALS is unclear, imaging studies of the central nervous system (CNS) support the idea that innate immune activation occurs early in disease in both humans and rodent models of ALS. In addition, emerging studies also reveal changes in monocytes, macrophages and lymphocytes in peripheral blood as well as at the neuromuscular junction. To more clearly understand the association of neuroinflammation (innate and adaptive) with disease progression, the use of biomarkers and imaging modalities allow monitoring of immune parameters in the disease process. Such approaches are important for patient stratification, selection and inclusion in clinical trials, as well as to provide readouts of response to therapy. Here, we discuss the different imaging modalities, e.g. magnetic resonance imaging, magnetic resonance spectroscopy and positron emission tomography as well as other approaches, including biomarkers of inflammation in ALS, that aid the understanding of the underlying immune mechanisms associated with motor neurone degeneration in ALS.
Collapse
Affiliation(s)
- Sandra Amor
- Department of Pathology, Amsterdam UMC Location VUmc, Amsterdam, the Netherlands.,Department of Neuroscience and Trauma, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Erik Nutma
- Department of Pathology, Amsterdam UMC Location VUmc, Amsterdam, the Netherlands
| | - Manuel Marzin
- Department of Pathology, Amsterdam UMC Location VUmc, Amsterdam, the Netherlands
| | - Fabiola Puentes
- Department of Neuroscience and Trauma, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| |
Collapse
|
5
|
Aboulayt A, Chambellan A, Marzin M, Saussey J, Maugé F, Lavalley J, Mercier C, Jacquot R. Study of the hydrogenation of methyl benzoate to benzaldehyde on various metal oxides. Studies in Surface Science and Catalysis 1993. [DOI: 10.1016/s0167-2991(08)63312-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
6
|
Chambellan A, Chevreau T, Khabtou S, Marzin M, Lavalley J. Acidic sites of steamed HY zeolites, active for benzene self-alkylation and hydrogenation. ACTA ACUST UNITED AC 1992. [DOI: 10.1016/s0144-2449(05)80300-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|