Abstract
Responses to coumarin have been reported for patients suffering from malignant melanoma, metastatic renal carcinoma and, recently, advanced prostate cancer. These data together with some experimental evidence for antiprostatic effect prompted us to study the activity of coumarin in various prostate tumour models and evaluate the endocrine properties of this drug. In rats no antiandrogenic activity was found. The growth of Noble Nb-R prostate tumours of the rat was strongly inhibited by coumarin (40 mg/kg; administered three times per week), whereas the hormonally more sensitive Dunning R3327-G rat prostate carcinoma did not respond to coumarin (40 mg) even when the drug was administered daily. Coumarin was also shown to posses antimetastatic activity in a Dunning R3327-MatLu tumour model. In this model small pieces of the hormone-independent tumour were implanted into the ear of the animal and later resected to mimic the clinical situation where primary tumours have been removed. The number of lung metastases was reduced significantly by 40%–50% following the administration of coumarin (40 mg daily).
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Dedicated to Professor N. Brock on the occasion of his 80th birthday
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Maucher, A., Kager, M. & von Angerer, E. Evaluation of the antitumour activity of coumarin in prostate cancer models. J Cancer Res Clin Oncol 119, 150–154 (1993). https://doi.org/10.1007/BF01229529
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DOI: https://doi.org/10.1007/BF01229529