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Breast Cancer Res:蛋白Perp与细胞桥粒或成抑制乳腺癌新靶标

2012-04-25 Beyond 生物谷

乳腺癌治疗的早期发现和进步能提高患者生存的机会,但是对抗这种疾病的新的治疗途径还需要我们进一步努力。发表在BioMed Central的Breast Cancer Research的杂志上的一项新的研究表明,蛋白PERP与细胞桥粒能抑制乳腺癌,这为今后乳腺癌的治疗提供了潜在的新的靶标。桥粒是相邻细胞间的一种斑点状黏着连接结构。 桥粒连接相邻细胞,这一微小蛋白质的集合调控身体内器官和组织的机械强度

乳腺癌治疗的早期发现和进步能提高患者生存的机会,但是对抗这种疾病的新的治疗途径还需要我们进一步努力。发表在BioMed Central的Breast Cancer Research的杂志上的一项新的研究表明,蛋白PERP与细胞桥粒能抑制乳腺癌,这为今后乳腺癌的治疗提供了潜在的新的靶标。桥粒是相邻细胞间的一种斑点状黏着连接结构。

桥粒连接相邻细胞,这一微小蛋白质的集合调控身体内器官和组织的机械强度。桥粒也被认为有助于抑制癌症。加州大学伯克利分校、斯坦福大学和加州大学戴维斯分校的研究人员发现蛋白PERP与桥粒一起存在于乳腺上皮细胞中。

该研究领导者Laura Attardi医生表示:该研究只要阐述了PERP的缺失是如何影响小鼠正常乳腺组织功能的。她说:PERP不足会造成乳腺上皮细胞桥粒蛋白表达的缺失,同时增强乳腺组织的炎症反应,肿瘤往往能更快熟发展。我们实验室研究也发现乳腺癌细胞有异常低水平的PERP表达。

这些结果表明PERP是一种细胞胶,能将细胞系在一起,但同时PERP在预防乳腺癌方面具有双重作用。炎性细胞促进癌症,缺乏细胞粘附是癌症转移的一大重要过程。PERP可能是监测乳腺癌的一个新的指标或治疗的新靶标。

doi:10.1186/bcr3171
PMC:
PMID:

Deficiency of the p53/p63 target Perp alters mammary gland homeostasis and promotes cancer

Rachel L Dusek, Jamie L Bascom, Hannes Vogel, Sylvain Baron, Alexander D Borowsky, Mina J Bissell, Laura D Attardi.

Perp is a transcriptional target of both p53 during DNA damage-induced apoptosis and p63 during stratified epithelial development. Perp-/- mice exhibit postnatal lethality associated with severe blistering of the epidermis and oral mucosa, reflecting a critical role in desmosome-mediated intercellular adhesion in keratinocytes. However, Perp's role in tissue homeostasis in other p63-dependent stratified epithelial tissues is poorly understood. Given that p63 is essential for proper mammary gland development and that cell adhesion is fundamental for ensuring the proper architecture and function of the mammary epithelium, here we investigate Perp's function in the mammary gland.

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    2013-01-12 feather89
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    2012-04-27 zhaojie88
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    2012-04-27 zhaojie88

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