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Photonuclear production and antitumor effect of radioactive cisplatin (Pt-195m)

机译:放射性顺铂(Pt-195m)的光核产生和抗肿瘤作用

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摘要

Incorporation of a radioisotope of platinum prepared with sufficiently high specific activity into the cisplatin molecule may significantly enhance the antitumor effect and decrease the therapeutically effective dosage of cisplatin chemotherapy. The objectives of our research were to develop a method of preparation of Pt-195m with high specific activity and then implement the synthesis of Pt-195m-cisplatin for in vitro and animal studies of its antitumor effect in comparison with non-radioactive cisplatin. Investigation of cisplatin and Pt-195m-cisplatin on Ehrlich solid carcinoma demonstrated tumor growth inhibition of 35 and 65 %, respectively, indicating Pt-195m-cisplatin is more effective than non-radioactive cisplatin in antitumor activity.
机译:将具有足够高的比活性制备的铂的放射性同位素掺入顺铂分子中可显着增强抗肿瘤作用并降低顺铂化疗的治疗有效剂量。我们的研究目标是开发一种具有高比活性的Pt-195m的制备方法,然后实施Pt-195m-顺铂的合成,以用于体外和动物研究其与非放射性顺铂相比的抗肿瘤作用。顺铂和Pt-195m-顺铂对Ehrlich实体癌的研究表明,其肿瘤生长抑制分别为35%和65%,这表明Pt-195m-顺铂在抗肿瘤活性方面比非放射性顺铂更有效。

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