Abstract:
BACKGROUND:In various neoplasms expression of the proliferation-related Ki-67 antigen has successfully been linked with parameters of progression of disease. While a definite grading scheme for oligodendrogliomas has still not been agreed upon, any parameter of tumor proliferation that might be helpful in predicting clinical outcome should be evaluated. METHODS:The expression of the proliferation related nuclear antigen Ki-67 (MIB-1 monoclonal antibody) was investigated in a series of 108 verified oligodendrogliomas, and the percentages of immunoreactive cells were compared with the survival times of the patients. Using multivariate analysis the prognostic value of MIB-1 labeling index (LI) was assessed taking into account age, tumor site, grade, and mitotic index (MI). RESULTS:Patient's age, tumor site, grading according to the grading scheme by Smith, MI and MIB-1 LI were all significantly related to survival. Whereas in a multivariate analysis, age, site, grade and MIB-1 LI had independent prognostic significance, MI failed to add significant prognostic value. CONCLUSIONS:The MIB-1 LI is an important addition to histopathologic grading for predicting clinical outcome of patients with oligodendrogliomas. The MIB-1 LI adds prognostic information independent of patient's age, tumor site and grade. The MI might be incorporated into a grading scheme for oligodendrogliomas, but is not by itself an additional prognosticator.
journal_name
Cancerjournal_title
Cancerauthors
Kros JM,Hop WC,Godschalk JJ,Krishnadath KKdoi
10.1002/(SICI)1097-0142(19960901)78:5<1107::AID-CNsubject
Has Abstractpub_date
1996-09-01 00:00:00pages
1107-13issue
5eissn
0008-543Xissn
1097-0142pii
10.1002/(SICI)1097-0142(19960901)78:5<1107::AID-CNjournal_volume
78pub_type
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