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  • Title: Immunohistochemical evaluation of minichromosome maintenance protein 7 in astrocytoma grading.
    Author: Facoetti A, Ranza E, Grecchi I, Benericetti E, Ceroni M, Morbini P, Nano R.
    Journal: Anticancer Res; 2006; 26(5A):3513-6. PubMed ID: 17094475.
    Abstract:
    The minichromosome maintenance (MCM) proteins, which play an important role in eukaryotic DNA replication, represent a group of proteins that are currently under investigation as novel diagnostic tumor markers. Several studies have proved a greater reliability of MCM proteins to stain proliferating cells compared to Ki67 protein, a routinely used proliferation marker in histopathology. In the present study, the expressions of MCM7 and Ki67 were estimated in 66 primary human astrocytomas in relation to tumor grade (Grade I-IV, WHO). MCM7 significantly stained more nuclei compared to Ki67 in all the histopathological grades investigated. In addition, a stronger increase of the MCM7 labelling index, in relation to the tumor aggressiveness, was observed.
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