Clinical usefulness of telomerase assay for the detection of lymph node metastasis in patients with oral malignancy
| Autor: | Tomoki Sumida, Hiroaki Kayahara, Kenichi Sogawa, Norifumi Ueda, Hiroaki Tanioka, Hirofumi Zen, Hiroyuki Hamakawa |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Pathology
medicine.medical_specialty Telomerase Lymph node metastasis Malignancy Polymerase Chain Reaction Sensitivity and Specificity Pathology and Forensic Medicine Metastasis Cell Line medicine Biomarkers Tumor Humans In patient Lymph node Repetitive Sequences Nucleic Acid business.industry Micrometastasis General Medicine DNA Neoplasm medicine.disease Medical Laboratory Technology medicine.anatomical_structure Epidermoid carcinoma Lymphatic Metastasis Carcinoma Squamous Cell Mouth Neoplasms Lymph Nodes business Neck |
| Zdroj: | Archives of pathologylaboratory medicine. 124(3) |
| ISSN: | 0003-9985 |
| Popis: | Objective.—Telomerase is considered a diagnostic marker of malignancy. We investigated the usefulness of telomerase assay for the detection of lymph node micrometastasis. Methods.—Sixteen cervical lymph nodes with metastasis of oral cancer and 20 benign lymph nodes were studied. The oral cancer cell line was used to estimate the sensitivity for telomerase assay. Telomerase activity was measured by semiquantitative telomeric repeat amplification protocol. Results.—There was a significant difference between malignant and benign lymph nodes. The telomerase activity of 50 mg of lymph nodes with 103 or more cancer cells differed from that of control lymph nodes. Lymph nodes with 102 or fewer tumor cells expressed similar levels as benign lymph nodes. Conclusions.—In addition to routine histologic examination, telomerase assay is considered a useful tool for the detection of lymph node metastasis in patients with oral malignancy. |
| Databáze: | OpenAIRE |
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