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Updated: Jul 19, 2026

Isolating Central Nervous System Tissues and Associated Meninges for the Downstream Analysis of Immune cells
Published on: May 19, 2020
Multiple sclerosis: an infectious syndrome involving Chlamydophila pneumoniae
Charles W Stratton1, David B Wheldon
1Department of Pathology, Vanderbilt University Medical Center, Nashville, TN 37232, USA. charles.stratton@vanderbilt.edu
Abstract:
The concept of autoimmune myelinopathy as the primary pathology in multiple sclerosis (MS) is problematic. Vasculitis is seen in the MS brain, both within lesions and in adjacent normal-appearing white matter. The first observation in acute relapse is the sudden, orderly death of oligodendrocytes; inflammatory removal of unsupported myelin seems to be a secondary process. An alternative explanation for these findings is that oligodendrocyte infection might trigger an inflammatory response. Many pathogens, including Chlamydophila (Chlamydia) pneumoniae, have been associated with MS. MS might be an infectious syndrome in which C. pneumoniae has a role in a subset of patients. Mechanisms by which such a cryptic infection could engender relapsing-remitting and, ultimately, progressive disease patterns are discussed.
Insights
Multiple sclerosis (MS) may stem from oligodendrocyte infection, not autoimmunity. Pathogen like Chlamydophila pneumoniae could trigger inflammation and disease progression in some patients.
Area of Science:
- Neuroimmunology
- Infectious Diseases
- Neuropathology
Background:
- The autoimmune basis of multiple sclerosis (MS) is questioned.
- Vasculitis occurs in MS lesions and normal-appearing white matter.
- Oligodendrocyte death precedes myelin removal in acute MS relapses.
Purpose of the Study:
- To propose an alternative hypothesis for MS pathology.
- To explore the role of infectious agents, specifically Chlamydophila pneumoniae, in MS.
- To discuss mechanisms linking cryptic infections to MS disease patterns.
Main Methods:
- Review of existing literature on MS pathology and associated infections.
- Analysis of pathological findings in MS brain tissue.
- Hypothetical modeling of infectious triggers for MS.
Main Results:
- Oligodendrocyte death appears to be a primary event in acute MS.
- Inflammatory myelin removal seems secondary to oligodendrocyte injury.
- Chlamydophila pneumoniae is a potential candidate pathogen implicated in MS.
Conclusions:
- MS may be an infectious syndrome in a subset of patients.
- Oligodendrocyte infection could initiate the inflammatory cascade in MS.
- Cryptic infections may explain the diverse clinical patterns observed in MS.
Related Concept Videos
Atypical Pneumonia
Multiple Sclerosis l: Introduction
Bacterial Phylum Chlamydiae
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Encephalitis ll: Pathophysiology
Bacterial Meningitis I: Introduction
