title: Genetic diagnosis of micrometastasis based on SCC antigen mRNA in cervical lymph nodes of head and neck cancer.
abstract: This study is designed to assess gene expression of squamous cell carcinoma antigen (SCCA) mRNA to detect micrometastases in cervical lymph nodes (LNs) of head and neck cancer. We examined the expression of SCCA mRNA in 12 primary tumors and 212 cervical LNs (101 LNs taken from 8 patients with tongue cancer, 71 from 7 patients with gingival cancer, 19 from 2 patients with laryngeal cancer, 9 from 2 patients with pharyngeal cancer, 7 from 1 patient with cancer of the buccal mucosa, and 5 from 1 patient with cancer of floor of the mouth). Detectability of metastatic LNs by nested and single reverse transcriptase-polymerase chain reaction (RT-PCR) was compared with semiserial sections (hematoxylin-eosin staining and keratin immunostaining). All primary tumors expressed SCCA mRNA. Of 198 histologically metastasis-negative nodes, SCCA mRNA was detected in 37 (18.7%) by nested PCR. Eleven micrometastatic foci in 9 LNs (4.6%) were discovered by semiserial sectioning. This suggests that SCCA mRNA is a promising tumor marker for detecting the micrometastases in cervical LNs of head and neck cancer.
authors.affiliation: Department of Oral & Maxillofacial Surgery, Ehime University School of Medicine, Onsengun, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Hamakawa
authors.forename: M
authors.initials: M
authors.lastname: Fukizumi
authors.forename: Y
authors.initials: Y
authors.lastname: Bao
authors.forename: T
authors.initials: T
authors.lastname: Sumida
authors.forename: A
authors.initials: A
authors.lastname: Onishi
authors.forename: H
authors.initials: H
authors.lastname: Tanioka
authors.forename: H
authors.initials: H
authors.lastname: Sato
authors.forename: E
authors.initials: E
authors.lastname: Yumoto
mesh_terms: D000951:Antigens, Neoplasm / Q000235:genetics*; D014408:Biomarkers, Tumor / Q000032:analysis*; D001706:Biopsy; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis* / Q000235:genetics / Q000473:pathology; D005188:False Negative Reactions; D005887:Gingival Neoplasms / Q000235:genetics / Q000473:pathology; D006258:Head and Neck Neoplasms / Q000235:genetics / Q000473:pathology*; D006801:Humans; D007633:Keratins / Q000032:analysis; D007822:Laryngeal Neoplasms / Q000235:genetics / Q000473:pathology; D008207:Lymphatic Metastasis / Q000175:diagnosis* / Q000235:genetics / Q000473:pathology; D008867:Microtomy / Q000379:methods; D009061:Mouth Mucosa / Q000737:chemistry; D009333:Neck; D009363:Neoplasm Proteins / Q000032:analysis; D010610:Pharyngeal Neoplasms / Q000235:genetics / Q000473:pathology; D012333:RNA, Messenger / Q000032:analysis*; D012334:RNA, Neoplasm / Q000032:analysis*; D020133:Reverse Transcriptase Polymerase Chain Reaction / Q000379:methods*; D012680:Sensitivity and Specificity; D015843:Serpins; D013194:Staining and Labeling; D014062:Tongue Neoplasms / Q000235:genetics / Q000473:pathology
chemical_list: D000951:Antigens, Neoplasm; D014408:Biomarkers, Tumor; D009363:Neoplasm Proteins; D012333:RNA, Messenger; D012334:RNA, Neoplasm; D015843:Serpins; C051072:squamous cell carcinoma-related antigen; D007633:Keratins