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Related Concept Videos

T Cell Types and Functions01:24

T 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...
T Cell Activation and Clonal Selection01:22

T Cell Activation and Clonal Selection

T cells are integral to our adaptive immune system, recognizing and effectively responding to foreign antigens. T cell activation and clonal selection are pivotal in orchestrating this immune response. This article elucidates these mechanisms, detailing the roles of cluster of differentiation (CD) markers, major histocompatibility complex (MHC) molecules, costimulatory signals, and the process of clonal selection.
Naive T cells that have not yet encountered an antigen express two primary CD...
B Cell Activation and Differentiation01:24

B Cell Activation and Differentiation

The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
Differentiation of Common Myeloid Progenitor Cells01:15

Differentiation of Common Myeloid Progenitor Cells

Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
Cell-mediated Immune Responses01:40

Cell-mediated Immune Responses

Overview
Multiple Sclerosis l: Introduction01:19

Multiple 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...

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Related Experiment Video

Updated: Jun 13, 2026

An Ex vivo Model of an Oligodendrocyte-directed T-Cell Attack in Acute Brain Slices
06:36

An Ex vivo Model of an Oligodendrocyte-directed T-Cell Attack in Acute Brain Slices

Published on: February 5, 2015

B-cell subsets: cellular interactions and relevance in multiple sclerosis.

Claudia J Calder1, Martin Duddy, Amit Bar-Or

  • 1Montreal Neurological Institute, Neuroimmunology Unit, 3801 University Street, Montreal, Quebec, H3A 2B4 Canada. claudia.calder@mail.mcgill.ca

Expert Review of Clinical Immunology
|May 19, 2010
PubMed
Summary
This summary is machine-generated.

B cells may impact neurological diseases like multiple sclerosis through antibody-dependent or independent mechanisms. Understanding these roles is crucial for developing new B-cell therapies for autoimmune disorders.

Related Experiment Videos

Last Updated: Jun 13, 2026

An Ex vivo Model of an Oligodendrocyte-directed T-Cell Attack in Acute Brain Slices
06:36

An Ex vivo Model of an Oligodendrocyte-directed T-Cell Attack in Acute Brain Slices

Published on: February 5, 2015

Area of Science:

  • Neuroimmunology
  • Immunology

Background:

  • B cells have long been implicated in neurological disease pathology, primarily through autoantibody production.
  • The role of B cells in multiple sclerosis (MS) is complex, with both circulating antibodies and CNS-resident B cells potentially contributing to disease.
  • Recent findings suggest B cells may also influence immune responses independently of antibody production.

Purpose of the Study:

  • To review the potential roles of both antibody-dependent and antibody-independent B-cell functions in multiple sclerosis.
  • To discuss the implications of these findings for B-cell-directed therapies in MS and other autoimmune diseases.

Main Methods:

  • Literature review and synthesis of current research on B-cell involvement in multiple sclerosis.
  • Analysis of antibody-dependent and antibody-independent mechanisms of B-cell action.

Main Results:

  • B cells contribute to neurological diseases through autoantibody production, a target for current therapies.
  • Emerging evidence highlights antibody-independent functions of B cells in immune-mediated diseases, including MS.
  • Both mechanisms are relevant to understanding B-cell roles in MS pathogenesis.

Conclusions:

  • B cells play multifaceted roles in multiple sclerosis, involving both antibody-mediated and antibody-independent pathways.
  • Further research into these diverse B-cell functions is essential for advancing therapeutic strategies for MS.
  • B-cell-directed therapies are a promising avenue for treating MS and other autoimmune conditions.