Sci Rep: 新型纳米药物,特异性杀伤肿瘤细胞!

2015-07-28 佚名 生物谷

Dalhousie医学院的研究人员开发了一种运送化疗药物的新方式。利用纳米科技,这种新型药物运送系统仅仅在肿瘤细胞释放药物,从而保护健康细胞不受伤害。这项研究工作于近日发表在Scientific Reports杂志上。Naga Puvvada博士是Dalhousie医学New Brunswick (DMNB)的一名博后,他发明了药物运送系统。他与DMNB的Keith Brunt博士,及美国和印

Dalhousie医学院的研究人员开发了一种运送化疗药物的新方式。利用纳米科技,这种新型药物运送系统仅仅在肿瘤细胞释放药物,从而保护健康细胞不受伤害。这项研究工作于近日发表在Scientific Reports杂志上。

Naga Puvvada博士是Dalhousie医学New Brunswick (DMNB)的一名博后,他发明了药物运送系统。他与DMNB的Keith Brunt博士,及美国和印度的研究人员们一起合作,开发了这种新系统。

研究团队设计了一种纳米颗粒,这种颗粒可以增加运送到肿瘤细胞的化疗药物的量,而且仅仅在肿瘤细胞内释放化疗药物。这样就对健康组织的影响减少到了最低。

肿瘤细胞产生的高酸性水平,才可以激活纳米颗粒,从而使其进入到肿瘤细胞,释放药物。当纳米颗粒释放药物时,它的颜色会改变,即光转换。这种光转换就可以帮助研究人员了解,多少化疗药物得到了释放,及辨别出存在的肿瘤。

"我们设计的独到之处就是,荧光光转换潜在的临床转化可能性,因为它有助于检测到化疗药物的释放量。"Puvvada博士说。"在这项技术用于临床之前,我们仍将有许多工作要做,因为目前荧光还不能够被MRIs 或 CTs检测到。这是我们下一步的研究工作。"

尽管这项研究是在人类乳腺癌细胞上开展的,但这项技术有潜力运用到任何一种实体瘤上。

"尽管这种新的药物运送系统还在早期阶段,但是它很有希望成为患者个体化治疗的一个方法。"药理系助理教授Brunt博士说。"这种靶向性好,且可以检测药物释放量的治疗方法,有潜力提高实体瘤患者的生活质量,他们的总体效果指日可待。"

原始出处

Puvvada N1, Rajput S2, Kumar BN2, Sarkar S3, Konar S4, Brunt KR5, Rao RR6, Mazumdar A7, Das SK8, Basu R9, Fisher PB8, Mandal M2, Pathak A4.Novel ZnO hollow-nanocarriers containing paclitaxel targeting folate-receptors in a malignant pH-microenvironment for effective monitoring and promoting breast tumor regression.Sci Rep. 2015 Jul 6

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    2015-07-30 xugc
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    2015-07-28 ligong

    化疗药物也可以成为靶向药物

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