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Acute cutaneous graft versus host disease: a clinicopathologic and immunophenotypic study
1Department of Dermatology and Pathology, Stanford University School of Medicine, California 94305.
International Journal of Dermatology
|April 1, 1992
Summary
Acute graft-versus-host disease (GVHD) involves skin changes, with most patients showing moderate histopathologic alterations. Early GVHD skin lesions reveal distinct T-cell distributions, aiding in understanding this bone marrow transplant complication.
Area of Science:
- Immunology
- Pathology
- Hematology
Background:
- Acute graft-versus-host disease (GVHD) is a significant complication following bone marrow transplantation.
- Understanding the early histopathologic changes in GVHD is crucial for improving patient outcomes.
Purpose of the Study:
- To characterize the histopathologic alterations in early acute GVHD skin lesions.
- To enhance the understanding of the GVHD disease process through detailed tissue analysis.
Main Methods:
- Histopathologic examination of skin tissue from 20 patients with GVHD.
- Immunoperoxidase staining to identify specific cell populations within the skin lesions.
Main Results:
- Sixty percent of patients exhibited Grade II histopathologic changes in the skin.
- Grade I and Grade III changes were observed in 35% and 5% of cases, respectively.
- Follicular involvement was present in all cases beyond Grade I, with T-helper (CD4+) cells in the dermis and cytotoxic/suppressor (CD4-) T-cells in the epidermis.
Conclusions:
- Early skin lesions in acute GVHD show characteristic histopathologic changes, with follicular involvement being a consistent finding.
- Immunoperoxidase studies reveal a distinct localization of T-cell subsets, with T-helper cells in the dermis and cytotoxic/suppressor cells in the epidermis, contributing to the pathogenesis of GVHD.