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PEAK1 可能是胰腺导管腺癌早期生物学标志物

2012-05-21 新华 新华网

  美国的研究人员在新一期《癌症研究》(Cancer Res, 2012 72; 2554 )杂志上报告说,一种名为PEAK1 的酪氨酸激酶可能是胰腺导管腺癌的早期生物学标志物,这一发现有助于将来开发针对这一致命性癌症的新疗法。   据美国全国癌症研究所公布的数据,胰腺导管腺癌是全美第四大癌症死因。由于胰腺肿瘤生长过程中没有明显症状,很多患者检查出患病时已处晚期。5年生存率只有3%-5

  美国的研究人员在新一期《癌症研究》(Cancer Res72; 2554 )杂志上报告说,一种名为PEAK1 的酪氨酸激酶可能是胰腺导管腺癌的早期生物学标志物,这一发现有助于将来开发针对这一致命性癌症的新疗法。

  据美国全国癌症研究所公布的数据,胰腺导管腺癌是全美第四大癌症死因。由于胰腺肿瘤生长过程中没有明显症状,很多患者检查出患病时已处晚期。5年生存率只有3%-5%。因此,发现胰腺导管腺癌的早期生物白植物,对治疗具有相当重要的作用。

  PEAK1 是一类可加速化学反应的激酶,也是很多细胞功能的“开关”。加利福尼亚大学圣迭戈分校的研究人员发现,在相关的肿瘤活组织中,能清楚发现PEAK1 的踪迹,并且它在患者胰腺内的水平也会显著提高。此外,由于它的催化活性对这类癌症细胞扩散具有重要作用,因此能成为胰腺导管腺癌的有效生物标志物以及分子药物的标靶。

  报告还说,研究人员将实验鼠肿瘤细胞中的PEAK1 敲除后,肿瘤会明显变小,肿瘤细胞也无法有效转移。内布拉斯加大学医学院副教授阿伦·萨森评论说,上述研究增进了人们对胰腺导管腺癌发病机制的理解,有助于开发针对这类癌症的新疗法。

      

   

   



    

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    2012-12-19 feather89
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    2012-06-23 仁医06
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