title: Diagnostic relevance of the immunohistochemical detection of growth factors in benign and malignant cartilaginous tumors.
abstract: The goal of this study was to evaluate the diagnostic relevance of the expression of growth factors in cartilaginous tumors and to investigate on the possible correlation with grade, local recurrence, metastatic potential, and survival. Expression of VEGF, PDGF, FGF1, TFGbeta2, TNFalpha, Ki-67, and p53 was analyzed in 21 cases of benign and malignant cartilaginous tumors using immunohistochemistry. Immunohistochemical staining was performed on sections from paraffin-embedded tissue. The correlation of these markers' expression and grading or clinical outcome was also evaluated. Immunohistochemistry revealed a high correlation between grading and VEGF-positive staining (P=0.001). In addition, a correlation with local recurrence was found in cases with a positive expression of Ki-67 (P=0.035), TGFbeta (P=0.007), PDGF (P=0.007), and p53 (P=0.0455), with a time-related association. These data suggest a progressive modification in the biologic behavior of malignant cartilaginous tumors. VEGF could be used as a marker in the preoperative surgical assessment of chondrosarcoma. New therapeutic strategies could be considered for VEGF-positive cases. Positive expression of TGFbeta and PDGF seems to be a predictor of clinical outcome.
authors.affiliation: Orthopaedic Department, Complesso Integrato Columbus, Rome, Italy. falconegian@libero.it
authors.forename: Gianluca
authors.initials: G
authors.lastname: Falcone
authors.forename: Esther Diana
authors.initials: ED
authors.lastname: Rossi
authors.forename: Giulio
authors.initials: G
authors.lastname: Maccauro
authors.forename: Vincenzo
authors.initials: V
authors.lastname: de Santis
authors.forename: Michele Attilio
authors.initials: MA
authors.lastname: Rosa
authors.forename: Arnaldo
authors.initials: A
authors.lastname: Capelli
authors.forename: Guido
authors.initials: G
authors.lastname: Fadda
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D014408:Biomarkers, Tumor / Q000032:analysis*; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000401:mortality / Q000473:pathology; D002356:Cartilage / Q000473:pathology*; D002813:Chondrosarcoma / Q000175:diagnosis* / Q000401:mortality / Q000473:pathology; D005260:Female; D006133:Growth Substances / Q000032:analysis*; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D009367:Neoplasm Staging; D011379:Prognosis; D012189:Retrospective Studies; D015996:Survival Rate
chemical_list: D014408:Biomarkers, Tumor; D006133:Growth Substances