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VLA-4 and its ligands: relevance to kidney diseases

H Rabb1, R Rosen, G Ramirez

  • 1Division of Nephrology and Hypertension, James A. Haley Veterans Hospital, Tampa, FL, USA.

Springer Seminars in Immunopathology
|January 1, 1995
PubMed

Insights

Cellular immunity changes in kidney disease involve adhesion molecules like VLA-4 and VCAM-1. Targeting these molecules may offer new treatments for kidney conditions.

Area of Science:

  • Immunology
  • Nephrology
  • Cell Biology

Background:

  • Cellular immunity plays a role in kidney diseases.
  • Adhesion molecules VLA-4, VCAM-1, and CS-1 are crucial in immune responses.
  • Their specific roles in kidney pathology are under investigation.

Purpose of the Study:

  • To explore the involvement of VLA-4, VCAM-1, and CS-1 in kidney diseases.
  • To understand the expression patterns of VCAM-1 in healthy and diseased kidneys.
  • To assess the potential of targeting these adhesion molecules for therapeutic benefit.

Main Methods:

  • Review of existing literature on VLA-4, VCAM-1, and CS-1 in kidney diseases.
  • Analysis of VCAM-1 expression in human kidney tissues.
  • Examination of animal models of kidney disease and transplantation.
  • Assessment of soluble VCAM-1 levels in hemodialysis patients.

Main Results:

  • VCAM-1 is normally present in specific kidney structures but is upregulated in various glomerulonephritis forms and lupus nephritis models.
  • Increased VCAM-1 expression correlates with leukocyte infiltration and inflammation in renal allografts.
  • Blockade of VLA-4 or VCAM-1 shows promise in attenuating transplant rejection in animal studies.
  • Hemodialysis patients exhibit elevated soluble VCAM-1 levels, suggesting immune system alterations.

Conclusions:

  • There is growing evidence linking VLA-4, VCAM-1, and CS-1 alterations to kidney diseases.
  • Further research is needed to clarify their precise roles in kidney disease immunopathogenesis.
  • Targeting these adhesion pathways could potentially ameliorate clinical kidney syndromes.

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