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Related Concept Videos

Cell Lines01:16

Cell Lines

A cell line is a population of cells grown in vitro that can be subcultured over several generations. Normal cells cease to divide after a certain number of cell divisions, a process known as replicative senescence. This number, called the Hayflick limit, was conceptualized by Leonard Hayflick in 1961 when he observed that fetal cells grown in culture could only divide 40-60 times. This limit is due to the shortening of the telomeres during each round of cell division, preventing cell division...
Cell Culture01:21

Cell Culture

Most vertebrate cells grow in vitro attached to a substrate as a monolayer, called adherent cultures. The flasks and plates used to grow cells are chemically treated to facilitate cell attachment. However, a few cell types, such as hematopoietic cells, can grow in a suspension. In contrast to adherent cultures, suspension cultures can grow in non-treated cultureware using magnetic stirrers or spinner flasks to agitate the culture media

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Related Experiment Video

Updated: Jul 3, 2026

Adaptation of Semiautomated Circulating Tumor Cell (CTC) Assays for Clinical and Preclinical Research Applications
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B cells from the bench to the clinical practice.

Rita Moura1, Ana Agua-Doce, Pamela Weinmann

  • 1Unidade de Investigção em Reumatologia, Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa.

Acta Reumatologica Portuguesa
|July 8, 2008
PubMed
Summary

B cells are crucial for adaptive immunity, producing diverse antibodies and presenting antigens. Proper B cell tolerance is vital to prevent autoimmune diseases caused by autoantibody production.

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Area of Science:

  • Immunology
  • Cell Biology
  • Autoimmunity

Background:

  • B cells develop in bone marrow and activate in lymphoid organs.
  • B cells exhibit clonal specificity and generate antibody diversity through V(D)J recombination, class switching, and somatic hypermutation.
  • B cells function in adaptive immunity, antigen presentation, and immune tolerance.

Purpose of the Study:

  • To summarize the multifaceted roles of B cells in adaptive immunity.
  • To highlight the mechanisms of antibody diversity and B cell tolerance.
  • To explain the contribution of B cells to autoimmune diseases.

Main Methods:

  • Review of established immunological principles.
  • Analysis of B cell development and function pathways.
  • Examination of B cell tolerance mechanisms and their failure in autoimmunity.

Main Results:

  • B cells are essential for recognizing diverse antigens and mounting adaptive immune responses.
  • Mechanisms like V(D)J recombination, class switching, and somatic hypermutation generate antibody diversity.
  • B cell tolerance mechanisms (clonal deletion, anergy, receptor editing) are critical for preventing autoimmunity.

Conclusions:

  • B cells play a central role in both protective immunity and the pathogenesis of autoimmune diseases.
  • Dysregulation of B cell tolerance can lead to autoantibody production and contribute to autoimmunity.
  • Understanding B cell function is key to developing therapies for immune and autoimmune disorders.