Related Experiment Video
Updated: Aug 6, 2026
06:36
An Ex vivo Model of an Oligodendrocyte-directed T-Cell Attack in Acute Brain Slices
Published on: February 5, 2015
[Infectious agents in the pathogenesis of multiple sclerosis]
1Zakład Neuroimmunologii Klinicznej Katedry Neurologii, Akademii Medycznej w Poznaniu.
Przeglad Epidemiologiczny
|August 17, 2006
Summary
Multiple sclerosis (MS) pathogenesis may involve infectious agents. Research explores the potential roles of Epstein-Barr virus (EBV), human herpesvirus 6 (HHV-6), and Chlamydia pneumoniae in this chronic central nervous system disease.
Area of Science:
- Neurology
- Immunology
- Infectious Diseases
Context:
- Multiple sclerosis (MS) is a chronic central nervous system (CNS) demyelinating disease with unknown causes.
- Genetic, environmental, and autoimmune factors are implicated in MS pathogenesis.
- The role of infectious agents in MS is an area of ongoing investigation.
Purpose:
- To review current understanding of infectious agents in multiple sclerosis pathogenesis.
- To discuss epidemiological, serological, and viral isolation data related to MS.
- To present findings on potential roles of Epstein-Barr virus (EBV), human herpesvirus 6 (HHV-6), and Chlamydia pneumoniae.
Summary:
- Epidemiological and serological studies suggest links between specific infections and MS.
- Attempts to isolate viruses and detect viral structures in the CNS of MS patients are discussed.
- Epstein-Barr virus (EBV), human herpesvirus 6 (HHV-6), and Chlamydia pneumoniae are highlighted as potential contributors to MS.
Impact:
- Provides an overview of the current evidence for infectious agents in MS.
- Highlights key findings and potential mechanisms of virus-induced demyelination.
- Informs future research directions for understanding and potentially treating MS.
More Related Videos
Related Concept Videos
01:19Multiple Sclerosis l: Introduction
Multiple sclerosis is a chronic autoimmune disease of the central nervous system (CNS) that affects the brain, spinal cord, and optic nerves. It is an inflammatory demyelinating disorder and a leading cause of neurological disability in young adults.EpidemiologyMS commonly begins between 20 and 40 years of age and is twice as common in women. Its exact cause remains unclear, but genetic susceptibility contributes, with higher risk in first-degree relatives and identical twins. A greater...
01:26Encephalitis ll: Pathophysiology
Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...
01:26Bacterial Meningitis II: Pathophysiology
Bacterial meningitis typically begins when pathogens such as Neisseria meningitidis and Streptococcus pneumoniae colonize the nasopharynx and invade the bloodstream. This process is facilitated by bacterial virulence factors, such as polysaccharide capsules, which resist phagocytosis and complement-mediated killing. Less commonly, bacteria reach the central nervous system via contiguous spread from infections like otitis media or sinusitis, through congenital or acquired dural defects, or...
01:18Viral Meningitis
Viral meningitis is the most common form of meningitis and is often referred to as aseptic meningitis to indicate the absence of bacterial involvement. It is generally milder than bacterial meningitis, with symptoms including fever, headache, stiff neck, drowsiness, nausea, photophobia, and vomiting. Rarely, more severe manifestations or death may occur. Common causative agents include enteroviruses, particularly coxsackie A and B viruses and echoviruses, all members of the Enterovirus genus...
01:20Infection
When a pathogen enters the body and reproduces, it can cause an infection, damage body cells, and cause illness symptoms that eventually lead to disease. Therefore, its prevention requires breaking the chain of infection.
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
01:24T Cell Types and Functions
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...