牛津大学科学家Cell子刊发表两项卵巢癌研究进展

2016-08-02 佚名 生物谷

最近来自英国牛津大学的一支研究团队在EBioMedicine和Cancer Cell两个国际学术期刊上发表了两项卵巢癌研究进展,他们在第一项研究中发现了一个帮助早期检测卵巢癌的标志物分子,并在第二项研究中发现一种使卵巢癌变得更加致命的关键酶,他们的研究为更多科学家检测并击败这种疾病提供了新的研究思路。 在第一项研究中研究人员发现SOX2的蛋白表达水平在卵巢癌患者输卵管中的水平更高,并且在一些卵巢

最近来自英国牛津大学的一支研究团队在EBioMedicine和Cancer Cell两个国际学术期刊上发表了两项卵巢癌研究进展,他们在第一项研究中发现了一个帮助早期检测卵巢癌的标志物分子,并在第二项研究中发现一种使卵巢癌变得更加致命的关键酶,他们的研究为更多科学家检测并击败这种疾病提供了新的研究思路。

在第一项研究中研究人员发现SOX2的蛋白表达水平在卵巢癌患者输卵管中的水平更高,并且在一些卵巢癌高危人群(如BRCA1和BRCA2基因突变携带者)中SOX2的表达水平也会更高。

牛津大学的Ahmed Ashour Ahmed教授表示:“卵巢癌的早期诊断非常困难,有的患者甚至在患病4年后才发现癌症的存在,目前只有三分之一的癌症患者能够得到早期诊断。检测SOX2表达不仅可以帮助更早地发现癌症,而且在一些病例中还可以在肿瘤癌变之前发现肿瘤。早治疗能够大大提高病人的生存几率,因此早发现是非常重要的。但是由于检测输卵管的SOX2表达并不是一件容易的事情,因此我们仍然还有很多工作要做。”

在第二项研究中,该研究团队发现了一种促进卵巢癌细胞扩散的关键酶。当卵巢癌发生扩散,通常会扩散到网膜——覆盖小肠的脂肪组织。卵巢癌患者最常见的死因就是肿瘤生长阻塞肠道导致的营养不良。

Ahmed教授解释道:“之前研究发现网膜部位的脂肪细胞会产生游离脂肪酸,促进癌症扩散。而我们发现卵巢癌细胞的增殖依赖一种叫做SIK2的关键酶,SIK2对于燃烧脂肪酸产生癌细胞生长所需的能量具有非常重要的作用。我们发现SIK2的表达水平在网膜部位的继发性肿瘤中比卵巢部位的原位肿瘤更高。”

研究表明SIK2不仅在卵巢肿瘤的生长过程中发挥关键作用,还在卵巢肿瘤向网膜的扩散过程中发挥重要作用,这会使卵巢癌变得更加致命。

研究人员表示,SIK2不仅能够为癌细胞提供能量,还会进一步增加癌细胞的数目,因此是未来卵巢癌治疗的一个重要靶点,破坏这种关键酶能够降低癌细胞扩散和癌症复发的可能。

原始出处:

Discoveries offer hope for managing ovarian cancer

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    2016-08-26 维他命
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    2016-08-03 忠诚向上

    好好学习

    0

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