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dc.contributor.authorJautzke, G.-
dc.contributor.authorMartín, H.-
dc.contributor.authorZimmer, C.-
dc.contributor.authorMarzheuser-Brands, S.-
dc.contributor.authorCervós-Navarro, J.-
dc.description.abstractWe conducted a trial in 42 benign and malignant meningiomas to assess a possible influence of preoperative dexamethasone therapy on mitotic index, labelling indices of proliferating cell nuclear antigen (PCNA), progesterone receptor, epidermal growth factor receptor (EGF-R), c-erbB-2 oncoprotein, cathepsin D, gamma-gamma enolase as well as the mean number of silver-stained nucleolar organizer region-associated proteins (AgNORs). Tumors with preceding dexamethasone therapy for more than 1 day display significantly less immunohistochemical staining for PCNA. A correlation between the labelling index of PCNA and the degree of malignancy could not be identified. There was no significant effect of preoperative dexamethasone therapy on the other parameters. Our data suggest that dexarnethasone may selectively inhibit the expression of PCNA in the GlISphase of the cell cycle. Thus, we emphasize the necessity to heed factors, e.g. dexamethasone, which may affect the expression of proliferating
dc.publisherMurcia : F. Hernándezes
dc.relation.ispartofHistology and histopathologyes
dc.subjectCell proliferationes
dc.subject.otherCDU::6 - Ciencias aplicadas::61 - Medicina::616 - Patología. Medicina clínica. Oncología::616.8 - Neurología. Neuropatología. Sistema nerviosoes
dc.titleInfluence of preoperative dexamethasone therapy on proliferating cell nuclear antigen (PCNA) expression in comparison to other parameters in meningiomases
Appears in Collections:Vol. 7, nº 4 (1992)

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