Multiple sclerosis-associated retrovirus (MSRV) in Sardinian MS patients

Area of Science:

• Neurology
• Virology
• Immunology

Background:

• Multiple Sclerosis (MS) is a chronic inflammatory disease of the central nervous system.
• The role of infectious agents, including retroviruses, in the pathogenesis of MS is under investigation.
• MS-associated retrovirus (MSRV) has been previously implicated in MS.

Purpose of the Study:

• To investigate the prevalence and distribution of MS-associated retrovirus (MSRV) in the cerebrospinal fluid (CSF) and blood of patients with MS and control subjects in Sardinia.
• To assess the potential of MSRV as a biomarker for neurological diseases of inflammatory origin.

Main Methods:

• Samples of blood and CSF were collected from Sardinian patients diagnosed with MS and from neurologic control subjects.
• Detection of MSRV was performed using molecular methods on both blood and CSF samples.
• Patient data, including clinical onset and disease progression, were correlated with MSRV detection.

Main Results:

• MSRV was detected in 50% of MS patients at clinical onset, with detection rates increasing with disease progression.
• MSRV was found in 40% of control subjects in the CSF.
• In blood samples, MSRV was detected in all MS patients, most patients with other inflammatory neurologic diseases, and rarely in healthy donors.

Conclusions:

• MSRV is prevalent in the blood of patients with MS and other inflammatory neurologic conditions.
• CSF detection of MSRV is also observed in MS patients and controls, though less consistently than in blood.
• MSRV may serve as a potential diagnostic marker for neurological diseases characterized by inflammation.