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Related Experiment Videos

Immune responsiveness.

D J Cook1

  • 1Department of Surgery, Medical College of Virginia, Richmond.

Clinical Transplants
|January 1, 1988
PubMed
Summary
This summary is machine-generated.

The association between the DR1 antigen and transplant survival has changed since 1987. Higher preformed antibodies, HLA-DR mismatches, and female donors are linked to early graft loss, while recipient sex and donor age affect later outcomes.

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Area of Science:

  • Nephrology
  • Immunology
  • Transplantation Science

Background:

  • The Human Leukocyte Antigen (HLA) system plays a critical role in transplant rejection.
  • Previous studies suggested an association between the HLA-DR1 antigen and improved kidney transplant survival.
  • Changes in transplant practices and patient populations may alter the impact of specific HLA antigens.

Purpose of the Study:

  • To re-evaluate the association between the HLA-DR1 antigen and kidney transplant graft survival in a contemporary cohort.
  • To identify immunological and demographic factors associated with early and late graft loss.

Main Methods:

  • Analysis of kidney transplant data from 1987.
  • Assessment of preformed panel reactive antibodies (PRA).
  • Evaluation of HLA-A, HLA-B, and HLA-DR mismatches.

Related Experiment Videos

  • Correlation of recipient and donor demographics (sex, age) and cold ischemia time (CIT) with graft survival.

    • Main Results:

    • The previously observed association between the HLA-DR1 antigen and increased graft survival was not evident in 1987 transplants.
    • Higher average preformed panel reactive antibodies (PRA), increased HLA-DR mismatches, and female donors were associated with early graft loss.
    • Recipient male sex, HLA-DR mismatches, and donor age influenced later graft losses.
    • Elevated recipient age, HLA-B,DR, HLA-A,B,DR mismatches, and cold ischemia times (CITs) were observed across all graft loss groups.

    Conclusions:

    • The prognostic significance of the HLA-DR1 antigen for kidney transplant survival has diminished.
    • Pre-transplant sensitization (PRA), HLA-DR mismatches, donor characteristics, and recipient factors significantly impact early and late graft outcomes.
    • These findings underscore the importance of comprehensive immunological and demographic assessments in predicting transplant success.