Related Experiment Video
Updated: May 20, 2026
05:44
Modeling Multiple Sclerosis in the Two Sexes: MOG35-55-Induced Experimental Autoimmune Encephalomyelitis
Published on: October 13, 2023
Perforin expression by CD4+ regulatory T cells increases at multiple sclerosis relapse: sex differences
Marta Tejera-Alhambra1, Bárbara Alonso1, Roseta Teijeiro1
1Department of Immunology, Hospital General Universitario Gregorio Marañón, Doctor Esquerdo 46, Madrid 28007, Spain.
International Journal of Molecular Sciences
|July 28, 2012
Summary
Regulatory T-cells (T(Reg)) in cerebrospinal fluid (CSF) increase during multiple sclerosis (MS) relapse. Higher CD4+ T(Reg) in women suggests a role in MS sexual dimorphism and highlights perforin
Area of Science:
- Neuroimmunology
- Cellular Immunology
Background:
- Multiple sclerosis (MS) is a leading neurological disorder in young adults, more prevalent in women.
- Immune dysregulation, involving T-cells and inflammation, contributes to MS pathophysiology.
- The role of regulatory T-cells (T(Reg)) in MS, particularly their sex-specific differences, requires further investigation.
Purpose of the Study:
- To investigate the presence and function of CD4+ and CD8+ T(Reg) in blood and cerebrospinal fluid (CSF) during MS relapse.
- To explore potential sex differences in T(Reg) recruitment and their correlation with hormonal factors.
- To analyze perforin expression by CD4+ T(Reg) in MS and its implications.
Main Methods:
- Parallel analysis of CD4+ and CD8+ T(Reg) in blood and CSF during MS relapse.
- Quantification of T(Reg) cells and assessment of perforin expression.
- Correlation analysis with serum levels of estradiol (E2) and IFN-alpha.
Main Results:
- A recruitment of both CD4+ and CD8+ T(Reg) into the CSF during MS relapse was observed.
- CSF CD4+ T(Reg) levels were significantly higher in women than in men.
- Perforin expression by CD4+ T(Reg) was notably enhanced in the CSF of MS patients.
Conclusions:
- CD4+ and CD8+ T(Reg) are recruited to the CSF during MS relapse.
- Higher CD4+ T(Reg) in female MS patients may contribute to the observed sexual dimorphism.
- Enhanced perforin expression by CSF CD4+ T(Reg) suggests a key role in MS immunomodulation.
Related Concept Videos
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...
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...