Correlation of basic fibroblast growth factor expression with the invasion and the prognosis of oral squamous cell carcinoma.
BACKGROUND
The aim of this study was to evaluate the relationship between the expression of basic fibroblast growth factor (bFGF) and fibroblast growth factor receptor-1 (FGFR-1) in cancer cells and fibroblasts at the invasive front of oral squamous cell carcinoma (OSCC), and the pathologic and clinical characteristics.


METHODS
Sections of 61 biopsy specimens of primary OSCC were immunostained to assess the expression of bFGF and FGFR-1 in cancer cells and fibroblasts at the invasive front.


RESULTS
The bFGF and FGFR-1 expressions in the cancer cells were evident in all specimens, whilst, in fibroblasts, they were detected in 41 (67%) of 61 specimens. These expressions in the fibroblasts occurred notably more often in high-invasive OSCC specimens than low-invasive OSCC specimens. The prevalence of bFGF and FGFR-1 expressions in cases with lymph node metastasis was significantly higher (P < 0.05) than in cases without metastasis. Moreover, these expressions were well correlated with patient prognosis.


CONCLUSIONS
This study concludes that bFGF and FGFR-1 expressions in fibroblasts at the invasive front are linked to the mode of invasion and the prognosis in OSCC.
Hase
Takashi
T
Department of Oral and Maxillofacial Surgery, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan. t-hase@oral.m.kanazawa-u.ac.jp
Kawashiri
Shuichi
S
Tanaka
Akira
A
Nozaki
Shinichi
S
Noguchi
Natsuyo
N
Kato
Koroku
K
Nakaya
Hiromitsu
H
Nakagawa
Kiyomasa
K
D000368:Aged; D000818:Animals; D002294:Carcinoma, Squamous Cell / Q000737:chemistry*; D016009:Chi-Square Distribution; D005260:Female; D016222:Fibroblast Growth Factor 2 / Q000032:analysis*; D005347:Fibroblasts / Q000737:chemistry; D006801:Humans; D008297:Male; D009062:Mouth Neoplasms / Q000737:chemistry*; D011379:Prognosis; D011817:Rabbits; D051496:Receptor, Fibroblast Growth Factor, Type 1 / Q000032:analysis*; D018709:Statistics, Nonparametric; D016019:Survival Analysis
D016222:Fibroblast Growth Factor 2; D051496:Receptor, Fibroblast Growth Factor, Type 1