title: Integrin expression levels correlate with invasion, metastasis and prognosis of oral squamous cell carcinoma.
abstract: The present study evaluated the relationship between alpha 3, alpha 6A, and beta 1 integrin expression in cancer cells at the invasive front of oral squamous cell carcinoma (OSCC) and survival rates, as well as the clinical and pathological characteristics. Sections of 100 specimens of primary OSCC were immunostained to assess alpha 3, alpha 6A, and beta 1 integrin expression in cancer cells at the invasive front. OSCC patients with higher expression levels of alpha 3, alpha 6A, and beta 1 integrin had significantly better prognosis than those with lower expression levels (median survival at low vs. high expression levels: alpha 3, 37.1 months vs. 55.7 months; alpha 6A , 38.3 months vs. 47.9 months; and beta 1, 26.1 months vs. 46.1 months) (P < 0.05). In addition, beta 1 integrin expression showed the highest correlation with clinical and pathological characteristics. This study concludes that alpha 3, alpha 6A, and beta 1 integrin expression in cancer cells at the invasive front are related to the mode of invasion and prognosis in OSCC.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Division of Cancer Science, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa 920-8640, Japan.
authors.forename: Teruhisa
authors.initials: T
authors.lastname: Ohara
authors.forename: Shuichi
authors.initials: S
authors.lastname: Kawashiri
authors.forename: Akira
authors.initials: A
authors.lastname: Tanaka
authors.forename: Natsuyo
authors.initials: N
authors.lastname: Noguchi
authors.forename: Hiroko
authors.initials: H
authors.lastname: Kitahara
authors.forename: Ayako
authors.initials: A
authors.lastname: Okamune
authors.forename: Koroku
authors.initials: K
authors.lastname: Kato
authors.forename: Takashi
authors.initials: T
authors.lastname: Hase
authors.forename: Hiromitsu
authors.initials: H
authors.lastname: Nakaya
authors.forename: Kunio
authors.initials: K
authors.lastname: Yoshizawa
mesh_terms: D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000378:metabolism* / Q000401:mortality / Q000473:pathology; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D016023:Integrins / Q000096:biosynthesis*; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000378:metabolism* / Q000401:mortality / Q000473:pathology*; D009361:Neoplasm Invasiveness; D011379:Prognosis
chemical_list: D016023:Integrins