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Dias DO, Kalkitsas J, Kelahmetoglu Y, Estrada CP, Tatarishvili J, Holl D, Jansson L, Banitalebi S, Amiry-Moghaddam M, Ernst A, Huttner HB, Kokaia Z, Lindvall O, Brundin L, Frisén J, Göritz C. Pericyte-derived fibrotic scarring is conserved across diverse central nervous system lesions. Nat Commun 2021; 12:5501. [PMID: 34535655 PMCID: PMC8448846 DOI: 10.1038/s41467-021-25585-5] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 08/17/2021] [Indexed: 12/04/2022] Open
Abstract
Fibrotic scar tissue limits central nervous system regeneration in adult mammals. The extent of fibrotic tissue generation and distribution of stromal cells across different lesions in the brain and spinal cord has not been systematically investigated in mice and humans. Furthermore, it is unknown whether scar-forming stromal cells have the same origin throughout the central nervous system and in different types of lesions. In the current study, we compared fibrotic scarring in human pathological tissue and corresponding mouse models of penetrating and non-penetrating spinal cord injury, traumatic brain injury, ischemic stroke, multiple sclerosis and glioblastoma. We show that the extent and distribution of stromal cells are specific to the type of lesion and, in most cases, similar between mice and humans. Employing in vivo lineage tracing, we report that in all mouse models that develop fibrotic tissue, the primary source of scar-forming fibroblasts is a discrete subset of perivascular cells, termed type A pericytes. Perivascular cells with a type A pericyte marker profile also exist in the human brain and spinal cord. We uncover type A pericyte-derived fibrosis as a conserved mechanism that may be explored as a therapeutic target to improve recovery after central nervous system lesions.
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Affiliation(s)
- David O Dias
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
| | - Jannis Kalkitsas
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
| | - Yildiz Kelahmetoglu
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
| | - Cynthia P Estrada
- Department of Clinical Neuroscience, Karolinska University Hospital, Solna, Sweden
| | | | - Daniel Holl
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
| | - Linda Jansson
- Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Shervin Banitalebi
- Division of Anatomy, Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Mahmood Amiry-Moghaddam
- Division of Anatomy, Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Aurélie Ernst
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
- Group Genome Instability in Tumors, German Cancer Research Center, Heidelberg, Germany
| | - Hagen B Huttner
- Department of Neurology, University Hospital Erlangen, Erlangen, Germany
| | - Zaal Kokaia
- Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Olle Lindvall
- Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Lou Brundin
- Department of Clinical Neuroscience, Karolinska University Hospital, Solna, Sweden
| | - Jonas Frisén
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
| | - Christian Göritz
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden.
- Ming Wai Lau Centre for Reparative Medicine, Stockholm Node, Karolinska Institutet, Stockholm, Sweden.
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