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[Proliferating cell nuclear antigen (PCNA) on human diseased thyroid cells]
T Kusunoki1, T Nakano, K Funasaka
1Department of Otolaryngology, Kinki University School of Medicine, Osaka.
Nihon Jibiinkoka Gakkai Kaiho
|April 1, 1993
Summary
Proliferating cell nuclear antigen (PCNA) indicates thyroid disease proliferative ability. Epidermal growth factor receptor (EGFR) shows a significant association with this proliferative ability in thyroid tumors.
Area of Science:
- Endocrinology
- Oncology
- Immunohistochemistry
Context:
- Thyroid diseases encompass a range of benign and malignant conditions.
- Understanding cellular proliferation is crucial for diagnosing and managing thyroid pathologies.
- Immunohistochemistry provides insights into cellular markers associated with disease progression.
Purpose:
- To investigate the role of Proliferating Cell Nuclear Antigen (PCNA) as a marker of proliferative ability in various thyroid diseases.
- To examine the association between Epidermal Growth Factor Receptor (EGFR) expression and cellular proliferation in thyroid tumors.
- To utilize immunohistochemistry with PCNA and EGFR antibodies for evaluating thyroid tissue samples.
Summary:
- PCNA labeling index was elevated in high-grade malignant thyroid cancers with metastasis and in proliferative benign lesions, indicating its role in reflecting proliferative capacity.
- Thyroid tumors exhibiting strong positive staining for EGFR also showed a high number of PCNA-positive cells.
- Results suggest a significant association between EGFR and the proliferative ability of thyroid diseases.
Impact:
- PCNA can serve as a reliable indicator of proliferative activity across benign and malignant thyroid conditions.
- EGFR may play a significant role in driving thyroid tumor proliferation.
- These findings contribute to a better understanding of thyroid cancer pathogenesis and potential therapeutic targets.