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Related Experiment Videos

[Alterations in lymphocyte subsets in variable immunodeficiency syndrome].

E Baumert1, M Schlesier, G Wolff-Vorbeck

  • 1Abteilung Rheumatologie und Klinische Immunologie, Medizinische Universitätsklinik, Freiburg.

Immunitat Und Infektion
|July 1, 1992
PubMed
Summary

Common Variable Immunodeficiency (CVID) patients exhibit lymphocyte alterations. B cells show decreased LAM-1 and CD21 expression, while T cells display a low CD4/CD8 ratio and enhanced memory markers.

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Clinical and immunological overlap between autoimmune lymphoproliferative syndrome and common variable immunodeficiency.

Clinical immunology (Orlando, Fla.)·2010

Area of Science:

  • Immunology
  • Cell Biology

Context:

  • Common Variable Immunodeficiency (CVID) is a primary immunodeficiency characterized by hypogammaglobulinemia.
  • Beyond functional deficits, CVID patients present with diverse phenotypical alterations in lymphocytes.

Purpose:

  • To detail the specific phenotypical changes observed in B and T lymphocytes in CVID patients.
  • To identify key cellular markers associated with CVID.

Summary:

  • Patients with CVID demonstrate reduced expression of LAM-1 (Leukocyte Adhesion Molecule 1) and CD21 on B cells.
  • A subset of CVID patients exhibits altered T-cell subpopulations, including a decreased CD4/CD8 ratio.
  • These T cells show an increased presence of CD57/CD8 double-positive lymphocytes and heightened expression of HLA-DR and memory markers (CD29, LFA-3).

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Impact:

  • Provides a deeper understanding of the cellular basis of CVID.
  • Highlights specific lymphocyte subset alterations that could serve as diagnostic or prognostic indicators.
  • Contributes to the characterization of immune dysregulation in CVID.