[Expression of transforming growth factor beta(TGF-beta) subtypes in oral squamous cell carcinoma].
OBJECTIVE
The objective of this study was to determine the expression of transforming growth factor beta (TGF-beta) subtypes and their relationship with the mechanisms of squamous cell carcinoma (OSCC) growth.


METHODS
Totally 40 cases of surgical specimens of OSCC resected between 1998 and 2000 and 20 cases of normal human oral mucosa were investigated. Strepto-adridinibiotin complex (SABC) immunohistochemical staining was used to analyze the expression of TGF-beta protein subtypes and their relations with clinical prognosis of OSCC.


RESULTS
Semi-quantitative analysis revealed that the subtypes 1, 2 and 3 of TGF-beta protein could be found in OSCC cells and normal oral epithelial cells, however the intensity of protein expression was different. Comparing with those in normal oral mucosa epithelial cells, the subtypes 1 and 2 of TGF-beta were over-expressed in OSCC cells. The over-expression of subtypes 1 and 2 of TGF-beta protein were associated with their pathological grades, clinical stages and neck lymph node metastasis (P < 0.05), whilst the subtype 3 protein of TGF-beta was not.


CONCLUSIONS
It will be useful to detect the expression of TGF-beta subtypes in OSCC, as the subtypes 1 and 2 of TGF-beta may play an important role in OSCC growth and metastasis.
Jin
X
X
College of Stomatology, Wuhan University.
Li
J
J
Li
Z
Z
Li
Y
Y
D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000378:metabolism* / Q000556:secondary; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000378:metabolism* / Q000473:pathology; D011379:Prognosis; D016212:Transforming Growth Factor beta / Q000096:biosynthesis*; D053773:Transforming Growth Factor beta1; D053781:Transforming Growth Factor beta2
C508960:TGFB1 protein, human; C509041:TGFB2 protein, human; D016212:Transforming Growth Factor beta; D053773:Transforming Growth Factor beta1; D053781:Transforming Growth Factor beta2