Abstract:
:Routine pathological examination cannot distinctively predict the clinical course of meningiomas because even histologically benign tumors may recur after gross total resection. Numerous efforts have been made for the evaluation of different immunohistochemical assays in meningioma prognosis. We investigated the prognostic significance of p16INK4a, p14ARF, p18INK4c, p21CIP1, p27KIP1 and p73 expression by immunohistochemical analysis of 271 meningiomas. All tumors were additionally stained for the proliferation markers Ki-67 and DNA topoisomerase II alpha (TopoIIalpha). Significant differences between the number of p16INK4a-, p18INK4c- and p21CIP1-positive cases were noted among the 3 grades of meningiomas. p16INK4a- and p21CIP-positive tumors were found to prevail among benign meningiomas, whereas p18INK4c immunostaining was closely associated to anaplastic meningiomas. The number of p16INK4a- and p21CIP-positive cases was significantly lower in the cohort of recurrent meningiomas. In contrast, p18INK4c-positive cases were clustered among recurrent meningiomas regardless of tumor grade. Immunoreactivity of p14ARF, p27KIP1 and p73 did not show any differences between meningiomas of various histology and clinical outcomes. Multivariate analysis revealed that only tumor grade and TopoIIalpha index are independent criteria for predicting meningioma recurrence. Thus, the immunohistochemical assessment of p16INK4a, p14ARF, p18INK4c, p21CIP1, p27KIP1 and p73 expression in meningiomas does not appear to provide prognostically useful information. Further studies are needed to identify more reliable prognostic markers and to address in more detail the role of cell cycle aberrations in these tumors.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Korshunov A,Shishkina L,Golanov Adoi
10.1002/ijc.11013keywords:
subject
Has Abstractpub_date
2003-05-10 00:00:00pages
728-34issue
6eissn
0020-7136issn
1097-0215journal_volume
104pub_type
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journal_title:International journal of cancer
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更新日期:2007-01-01 00:00:00
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更新日期:1999-03-15 00:00:00
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