Cited by 33Multiple Sclerosis Research StudiesNeuroinflammation and Neurodegeneration MechanismsT-cell and B-cell Immunology

Astrocyte-Derived Pleiotrophin Mitigates Late-Stage Autoimmune CNS Inflammation

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Linnerbauer, Mathias, Lößlein, Lena, Farrenkopf, Daniel, Vandrey, Oliver, Tsaktanis, Thanos, Naumann, Ulrike, Rothhammer, Veit·2022·Frontiers in Immunology

Abstract

Astrocytes are the most abundant glial cells in the central nervous system (CNS) with the capacity to sense and react to injury and inflammatory events. While it has been widely documented that astrocytes can exert tissue-degenerative functions, less is known about their protective and disease-limiting roles. Here, we report the upregulation of pleiotrophin (PTN) by mouse and human astrocytes in multiple sclerosis (MS) and its preclinical model experimental autoimmune encephalomyelitis (EAE). Using CRISPR-Cas9-based genetic perturbation systems, we demonstrate in vivo that astrocyte-derived PTN is critical for the recovery phase of EAE and limits chronic CNS inflammation. PTN reduces pro-inflammatory signaling in astrocytes and microglia and promotes neuronal survival following inflammatory challenge. Finally, we show that intranasal administration of PTN during the late phase of EAE successfully reduces disease severity, making it a potential therapeutic candidate for the treatment of progressive MS, for which existing therapies are limited.

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Cited by

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Authors
Linnerbauer, M., Lößlein, L., Farrenkopf, D., Vandrey, O., Tsaktanis, T., Naumann, U., & Rothhammer, V.
Affiliations
Friedrich-Alexander-Universität Erlangen-Nürnberg (DE)
Corresponding author
Rothhammer, Veit
Venue
Frontiers in Immunology
Published
2022-01-03
Volume
12
Pages
800128-800128
ISSN
1664-3224 (ISSN-L)
OpenAlex
W4206233724
Cited by
33
References
7
Citations by year
2026: 2 · 2025: 12 · 2024: 8 · 2023: 10 · 2022: 1
FWCI
5.25
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Immunology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • GoeScholar The Publication Server of the Georg-August-Universität Göttingen (Georg-August-Universität Göttingen) (submittedVersion)
  • OPUS FAU (Kooperativer Bibliotheksverbund Berlin-Brandenburg (KOBV), on behalf of the Universitätsbibliothek Erlangen-Nürnberg) (submittedVersion, cc-by)
Funders
  • Deutsche Forschungsgemeinschaft (RO4866/4-1, RO4866/3-1, Project ID 408885537 - TRR 274, Project ID 261193037 - CRC 1181)
  • European Research Council (HICI 851693)
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
Keywords
pleiotrophin, astrocytes, multiple sclerosis, experimental autoimmune encephalomyelitis, neuroinflammation, neuroprotection, microglia, neuronal survival, intranasal drug delivery, neuroinflammation therapy
MeSH terms
Animals, Astrocytes, Carrier Proteins, Encephalomyelitis, Autoimmune, Experimental, Humans, Mice, Inbred C57BL, Cytokines, Mice

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