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  • Title: Vitamin D receptor (VDR) expression is not a prognostic factor in cervical cancer.
    Author: Friedrich M, Meyberg R, Axt-Fliedner R, Villena-Heinsen C, Tilgen W, Schmidt W, Reichrath J.
    Journal: Anticancer Res; 2002; 22(1A):299-304. PubMed ID: 12017307.
    Abstract:
    BACKGROUND: The aim of this study was to analyze whether VDR status is a prognostic factor that may be of importance for the assessment of recurrence in cervical cancer. MATERIALS AND METHODS: VDR-, Ki-67- and p53-status were analyzed immunohistochemically in cervical cancer patients (n=50) and in benign cervical tissue (n=15). The histopathological data of the tumours were evaluated. RNA was extracted from normal cervical tissue (n=4) and cervical carcinomas (n=8) using the method of Chomczynski. RNA was reverse-transcribed and RNA-levels were semiquantitatively detected by PCR. RESULTS: The expression of VDR was significantly increased in cervical cancer compared to normal cervical tissue on the protein-level but not on the RNA-level. No statistically significant correlations were found comparing VDR status with histopathological data (tumour stage, lymph node status, grading, histological tumour type), with the expression of the proliferation marker Ki-67 and of the tumour suppressor gene p53. CONCLUSION: Our findings indicate that VDR protein expression is not a prognostic factor in cervical cancer. The strong I/DR immunoreactivity that we observed in cervical cancer specimens supports the body of evidence that cervical cancer may be a target for therapeutically applied vitamin D analogues.
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