Argyrophilic nucleolar organizer regions and proliferating cell nuclear antigen/cyclin in Kaposi's sarcoma. Comparison with morphology and with immunoperoxidase staining for factor VIII-related antigen.
case_control · Level III
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Abstract
The proposal that Kaposi's sarcoma undergoes cellular transformation from early to late stages was studied with argyrophilic nucleolar organizer regions, proliferating cell nuclear antigen/cyclin, and immunoperoxidase staining for factor VIII-related antigen. Staining of argyrophilic nucleolar organizer regions was significantly increased in the plaque/nodular stage compared to the patch stage. The endothelial-selective marker factor VIII-related antigen stained more intensely in patch stage lesions. This was inversely correlated with staining of argyrophilic nucleolar organizer regions. Proliferating cell nuclear antigen/cyclin staining did not correlate with tumor stage or with factor VIII-related antigen. The changes in argyrophilic nucleolar organizer regions and factor VIII-related antigen staining are evidence for cellular transformation in Kaposi's sarcoma.
Medical subject headings
- Nucleolus Organizer Region
- Proliferating Cell Nuclear Antigen
- Sarcoma, Kaposi
- von Willebrand Factor