Predictive value of proliferation-related markers, p53, and DNA ploidy for survival in patients with soft tissue spindle-cell sarcomas.
In a retrospective study of 60 spindle-cell sarcomas of peripheral soft tissues, we evaluated the extent of immunostaining with antibodies against Ki-67, proliferating cell nuclear antigen, and p53 protein and flow-cytometric DNA ploidy, their relation to tumor location, depth, histologic type, size, mitotic rate, and extent of tumor necrosis, as well as their influence on survival. Although Ki-67-labeled nuclei were detected in only 41 tumors (68%) and their number varied from 1 to 50%, proliferating cell nuclear antigen immunoreactive nuclei were found in each tumor, with their number ranging from 20 to 99%. p53 Protein was found in 26 cases (43%), and its labeling ranged from 1 to 80%. Although Ki-67 labeling significantly correlated with mitotic rate, no correlation could be found between proliferating cell nuclear antigen or p53 labeling and any other variables studied. Thirty-eight percent of the tumors were diploid, and 64% were aneuploid. Factors that significantly reduced survival in univariate analysis were increasing size and depth of the tumor, the presence of necrosis, the National Cancer Institute grade, and a tetraploid/hypertetraploid DNA pattern. In multivariate analysis of 49 cases with complete information, only DNA ploidy pattern, tumor size, and tumor necrosis retained their independent prognostic significance.
Golouh
R
R
Department of Pathology, Institute of Oncology, Ljubljana, Slovenia.
Bracko
M
M
Novak
J
J
D014408:Biomarkers, Tumor / Q000032:analysis*; D002455:Cell Division; D004273:DNA, Neoplasm / Q000032:analysis*; D005434:Flow Cytometry; D006801:Humans; D007150:Immunohistochemistry; D019394:Ki-67 Antigen / Q000378:metabolism; D015999:Multivariate Analysis; D011003:Ploidies; D011379:Prognosis; D018809:Proliferating Cell Nuclear Antigen / Q000378:metabolism; D012189:Retrospective Studies; D012509:Sarcoma / Q000378:metabolism / Q000401:mortality / Q000473:pathology* / Q000648:ultrastructure; D012983:Soft Tissue Neoplasms / Q000378:metabolism / Q000401:mortality / Q000473:pathology* / Q000648:ultrastructure; D016019:Survival Analysis; D016159:Tumor Suppressor Protein p53 / Q000378:metabolism*
D014408:Biomarkers, Tumor; D004273:DNA, Neoplasm; D019394:Ki-67 Antigen; D018809:Proliferating Cell Nuclear Antigen; D016159:Tumor Suppressor Protein p53