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Related Experiment Videos

Bursal secretory dendritic-like cell: a microenvironment issue

B Glick1, I Olah

  • 1Poultry Science Department, Clemson University, South Carolina 29634-0379.

Poultry Science
|July 1, 1993
PubMed
Summary
This summary is machine-generated.

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Bursal secretory dendritic-like cells (BSDC) are identified in chickens using a vimentin antibody. These cells express IgG and may influence B cell development and antibody diversity.

Area of Science:

  • Immunology
  • Cell Biology

Background:

  • The bursa of Fabricius is crucial for B cell development.
  • Bursal secretory dendritic-like cells (BSDC) were previously identified in the bursa.
  • The role of BSDC in B cell development requires further elucidation.

Purpose of the Study:

  • To characterize bursal secretory dendritic-like cells (BSDC) in posthatch chickens.
  • To investigate the relationship between BSDC and B cell development stages.
  • To explore the potential function of BSDC in antibody diversity.

Main Methods:

  • Identification of BSDC using a monoclonal antibody to vimentin.
  • Analysis of vimentin-positive cells and B cells in posthatch chickens.
  • Assessment of IgG chain expression in vimentin-positive cells.

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Main Results:

  • BSDC were identified in the medulla of the bursa of Fabricius.
  • Vimentin-positive cells (BSDC) were distinguished from B cells in posthatch chickens.
  • Vimentin-positive cells, but not B cells, expressed complete IgG chains.

Conclusions:

  • BSDC are distinct from B cells and appear early in the bursa.
  • BSDC may play a role in B cell expansion and immunoglobulin gene conversion.
  • BSDC-produced IgG and granular products could act as signals for B cell development and antibody diversification.