Oncogenesis:科学家发现抑制乳腺癌肿瘤生长的神奇蛋白质

2017-06-13 佚名 medicalxpress

伯明翰大学的研究人员发现,一种蛋白质可以抑制乳腺癌肿瘤的生长。 最新研究表明脯氨酸富集同源异型域蛋白(PRH)在乳腺癌肿瘤发展中发挥的作用,进而有助于更好地确定患者的预后效果。

伯明翰大学的研究人员发现,一种蛋白质可以抑制乳腺癌肿瘤的生长。

最新研究表明脯氨酸富集同源异型域蛋白(PRH)在乳腺癌肿瘤发展中发挥的作用,进而有助于更好地确定患者的预后效果。

伯明翰大学癌症与基因组学研究所的Padma Sheela Jayaraman博士说:“PRH是一种控制和调节基因何时开启或关闭的蛋白质。”

“然而,在我们的研究之前,这种蛋白质在乳腺癌中的作用被人们知之甚少。

“公共数据库显示,在大量乳腺癌患者预后不良的情况下,PRH基因的活性下降。”

“然而,目前还不清楚这些患者体内的PRH蛋白含量是否也更低,因为没有相关记录。”

研究人员使用了一种特殊的染色方法,在切片检查过程中去除乳腺癌细胞中PRH蛋白的水平和位置。他们发现,在一项小型研究中,肿瘤细胞中PRH蛋白的变化与正常细胞相比,正常细胞与公共数据库中PRH基因活性的降低是一致的。

Jayaraman博士补充说:“在实验室,我们发现,当乳腺肿瘤中PRH蛋白水平降低时,细胞就会有更多的分裂,从而加速肿瘤的发展。”

“此外,我们确定了一些由PRH调节的基因,并特别有助于增加细胞分裂。”

研究人员还对乳腺癌的肿瘤模型进行了测试,提高了PRH的水平来观察其效果。

Jayaraman博士补充说:“我们发现高水平的PRH实际上阻止了肿瘤的形成,因此我们的数据表明,PRH可以阻止一些乳腺癌中的肿瘤形成。”

“我们建议监测乳腺癌患者的PRH蛋白水平或活性对于评估其预后尤为重要。

“此外,由于PRH已知在多种细胞类型中很重要,因此这项工作对其他类型的癌症具有重要意义。

“我们正在努力调查PRH在前列腺癌和胆管癌中的重要性。



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    2017-08-05 cy0324
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    2017-06-15 zsyan
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    2017-06-15 skhzy

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