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Related Concept Videos

Cells of the Adaptive Immune Response01:23

Cells of the Adaptive Immune Response

The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
Understanding Memory01:19

Understanding Memory

Memory is the retention of information or experiences over time, facilitated through three main processes: encoding, storage, and retrieval. Encoding is the process of inputting information into the memory system. For instance, when listening to a lecture, watching a play, reading a book, or having a conversation, the brain is actively encoding information. This initial stage involves transforming sensory input into a form that can be processed and stored by the brain. Various factors, such as...
Immunological Memory01:23

Immunological Memory

Immunological memory, a pivotal pillar of the adaptive immune system, is responsible for the body's ability to remember and respond more swiftly and effectively to previously encountered pathogens. This remarkable feature is what makes vaccines so effective in preventing diseases.
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature is...
Chromatin Modification in iPS Cells01:32

Chromatin Modification in iPS Cells

Chromatin modification alters gene expression; therefore, scientists can add histone-modifying enzymes, histone variants, and chromatin remodeling complexes to somatic cells to aid reprogramming into pluripotent stem (iPS) cells.
Compact chromatin makes reprogramming difficult. Enzymes, such as histone demethylases and acetyltransferases, are often added during reprogramming to loosen the chromatin, making the DNA more accessible to transcription factors. Molecules that inhibit histone...
Somatic to iPS Cell Reprogramming01:29

Somatic to iPS Cell Reprogramming

Reprogramming alters the gene expression in somatic cells, transforming them into induced pluripotent stem (iPS) cells over several generations. Scientists can reprogram cells by introducing genes for four transcription factors—Oct4, Sox2, Klf4, and c-Myc (OSKM) by viral or non-viral methods. These factors are also known as Yamanaka factors after Shinya Yamanaka, who first generated iPS cells using mouse skin cells. Yamanaka was awarded the Nobel Prize in Physiology or Medicine in 2012 for this...
System of Memory01:23

System of Memory

Memory is categorized into three major systems: sensory memory, short-term memory (STM), and long-term memory (LTM). These systems differ in their capacity and the duration for which they can hold information. Sensory memory captures raw sensory input from the environment, holding it for just a few seconds or less. For example, on hearing a brief, loud sound, like a car horn honking, the sound seems to linger in the mind for a moment even after it stops. This is an instance of sensory memory...

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Related Experiment Video

Updated: Jun 22, 2026

In Vitro Differentiation Model of Human Normal Memory B Cells to Long-lived Plasma Cells
10:26

In Vitro Differentiation Model of Human Normal Memory B Cells to Long-lived Plasma Cells

Published on: January 20, 2019

Human B cell memory.

Antonio Lanzavecchia1, Federica Sallusto

  • 1Institute for Research in Biomedicine, Bellinzona, Switzerland. lanzavecchia@irb.unisi.ch

Current Opinion in Immunology
|June 6, 2009
PubMed
Summary
This summary is machine-generated.

Two types of B cells, plasma cells and memory B cells, provide lasting immunity after an immune response. Understanding these cells and methods to isolate antibodies aids vaccine and therapy development.

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Cultivate Primary Nasal Epithelial Cells from Children and Reprogram into Induced Pluripotent Stem Cells
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Single-cell Screening Method for the Selection and Recovery of Antibodies with Desired Specificities from Enriched Human Memory B Cell Populations
09:07

Single-cell Screening Method for the Selection and Recovery of Antibodies with Desired Specificities from Enriched Human Memory B Cell Populations

Published on: August 22, 2019

Related Experiment Videos

Last Updated: Jun 22, 2026

In Vitro Differentiation Model of Human Normal Memory B Cells to Long-lived Plasma Cells
10:26

In Vitro Differentiation Model of Human Normal Memory B Cells to Long-lived Plasma Cells

Published on: January 20, 2019

Cultivate Primary Nasal Epithelial Cells from Children and Reprogram into Induced Pluripotent Stem Cells
12:08

Cultivate Primary Nasal Epithelial Cells from Children and Reprogram into Induced Pluripotent Stem Cells

Published on: March 10, 2016

Single-cell Screening Method for the Selection and Recovery of Antibodies with Desired Specificities from Enriched Human Memory B Cell Populations
09:07

Single-cell Screening Method for the Selection and Recovery of Antibodies with Desired Specificities from Enriched Human Memory B Cell Populations

Published on: August 22, 2019

Area of Science:

  • Immunology
  • Cell Biology

Background:

  • Following an immune response, two types of differentiated B cells persist: plasma cells for immediate antibody secretion and memory B cells for rapid secondary responses.
  • These long-lived cells are crucial for adaptive immunity and protective memory.

Purpose of the Study:

  • To review recent advances in understanding the heterogeneity, dynamics, and persistence of human memory B cells and plasma cells.
  • To discuss new methods for isolating human monoclonal antibodies.

Main Methods:

  • Literature review of recent studies on human B cell memory.
  • Analysis of emerging techniques for monoclonal antibody isolation.

Main Results:

  • Recent findings reveal significant heterogeneity and dynamics in human memory B cell and plasma cell populations.
  • New methods allow for more efficient isolation of human monoclonal antibodies.

Conclusions:

  • Understanding human B cell memory heterogeneity and dynamics offers new insights into immune responses.
  • These insights are relevant for improving vaccination strategies and developing therapeutic interventions.