The Effect of Alkaloid from Oxytropis ochrocephara on Growth Inhibition and Expression of PCNA and p53 in Mice Bearing H22 Hepatocellular Carcinoma

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  • LONG Ling
    College of Animal Science, Northwest Agriculture and Forestry University
  • LI Qingwang
    College of Animal Science, Northwest Agriculture and Forestry University Department of Biological Engineering, College of Environment & Chemical Engineering, Yanshan University

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タイトル別名
  • The Effect of Alkaloid from <i>Oxytropis ochrocephala</i> on Growth Inhibition and Expression of PCNA and p53 in Mice Bearing H<sub>22</sub> Hepatocellular Carcinoma
  • Effect of Alkaloid from Oxytropis ochrocephara on Growth Inhibition and Expression of PCNA and p53 in Mice Bearing H22 Hepatocellular Carcinoma

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説明

To study the antitumor activity of alkaloid extracted from Oxytropis ochrocephala and its possible mechanism, we observed the effect of alkaloid on tumor weight and expression of PCNA and p53 in mice bearing H22 hepatocellular carcinoma by means of immunohistochemistry SP method. After treatment with alkaloid from Oxytropis ochrocephala, the results showed that alkaloid administration (25 and 50 mg/kg body weight, p.o.) could inhibit H22 hepatocellular carcinoma growth to various extent, and the rates of inhibition were 48.5% and 57.7% respectively (p<0.01). The antitumor activity of the alkaloid is in a dose dependent manner, with no signs of toxicity to weight, kidney and liver. The sections of tumor showed the number of tumor cell decreased and nucleus appeared putrescence such as nucleus atrophy, disintegrating and dissolving. Meanwhile, the expression of PCNA and mutant p53 protein positive cell numbers in mice bearing H22 hepatocellular carcinoma also suppressed by alkaloid (p<0.05). It suggested that Alkaloid from Oxytropis ochrocephala showed antitumor effect and its possible mechanism might be associated with the expression inhibition of PCNA and mutant p53 protein. Further studies are needed to explore the antitumor activity of the other compounds of Oxytropis ochrocephala and to specify their possible mechanism of action.<br>

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  • 薬学雑誌

    薬学雑誌 125 (8), 665-670, 2005-08-01

    公益社団法人 日本薬学会

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