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NN Biol Med:新型纳米颗粒靶向治疗癌症及退行性疾病

2014-12-16 佚名 生物谷

  近日,来自布鲁内尔大学的研究人员通过研究利用一种纳米颗粒开发出了靶向治疗癌症及退行性疾病的新型疗法,同时并不会对患者机体带来任何副作用,相关研究刊登于国际杂志Nanomedicine: Nanotechnology,Biology and Medicine上。 如今我们在使用纳米药物上取得了巨大的进步,而研究人员在血液中也发现了可以伪装纳米颗粒的蛋白质,以便纳米颗粒可以被吸收

 

近日,来自布鲁内尔大学的研究人员通过研究利用一种纳米颗粒开发出了靶向治疗癌症及退行性疾病的新型疗法,同时并不会对患者机体带来任何副作用,相关研究刊登于国际杂志Nanomedicine: Nanotechnology,Biology and Medicine上。

如今我们在使用纳米药物上取得了巨大的进步,而研究人员在血液中也发现了可以伪装纳米颗粒的蛋白质,以便纳米颗粒可以被吸收到细胞中而不引发机体炎症及破坏健康细胞。

文章中,研究者Uday Kishore表示,碳纳米管(CNTs)可以靶向作用补体系统的链式反应,而该链式反应是机体先天免疫系统的一部分,主要负责清理病原体及毒素。当机体整个补体系统被激活后,即从C1起始部位到C5末端被激活,就会激活杀细胞膜攻击复合体。从原则上来讲这会引发急性过敏及炎症反应,然而事实正好相反。

CNTs和C1q之间的反应是抗炎性反应,C1q是一种作为补充的起始蛋白,这就表明,“涂层”纳米颗粒或携带补体蛋白的健康组织会减少组织损伤并且帮助治疗炎性疾病,比如帕金森疾病、亨廷顿氏症以及阿尔兹海默氏症等。

利用本文的研究数据,这种覆盖工程化蛋白的碳纳米颗粒或许可以用于靶向作用胶质母细胞瘤;最后研究人员Uday Kishore说道,利用免疫系统可以识别的蛋白来有效伪装碳纳米颗粒,我们就可以用这些纳米颗粒来靶向作用药物难以到达的机体患处,而不产生任何副作用,这种新型的纳米颗粒在未来或将帮助我们开发治疗癌症的新型疗法。

原始出处

Kirsten M. Pondman, MSc, Martin Sobik, MSc, Annapurna Nayak, MSc, Anthony G. Tsolaki, DPhil, Anne Jäkel, DPhil, Emmanuel Flahaut, PhD, Silke Hampel, PhD, Bennie ten Haken, PhD, Robert B. Sim, DPhil, Uday Kishore, Complement activation by carbon nanotubes and its influence on the phagocytosis and cytokine response by macrophages.NN Biol Med.2014

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    2015-03-04 sunylz
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近日,一项发表于国际杂志Nature Communications上的研究论文中,来自哥本哈根大学的研究人员通过研究鉴别出了一种确保细胞何时分裂的新型分子机制,在细胞分裂的过程中遗传物质可以平均分配到两个子代细胞中,而该过程也被称为染色体分离,其对于细胞非常重要,因为一旦遗传物质发生不正确分裂就会促使细胞癌变。 文章中,研究人员就揭示了染色体分离过程以及蛋白质BubR1的影响,研究人员利用复杂的

Nat Biotechnol:新型3D疫苗横扫癌症及艾滋病

癌症如此致命的一个原因是它可以逃避机体免疫系统的攻击,使得肿瘤能够旺盛生长及扩散。科学家们一直在设法尝试利用免疫疗法来诱导免疫系统进入到抗癌攻击模式,建立起对癌细胞的长期免疫抵抗。 现在,来自Wyss生物启发工程研究所和哈佛大学工程与应用科学学院的研究人员证实,非手术注射可在体内自发组装成3D结构的一些可编程生物材料,可以对抗甚至帮助预防癌症以及诸如艾滋病一类的传染病。他们的研究结果发表在《自然

J Nucl Med:核医学疗法或可用于癌症治疗

近日,发表在国际杂志The Journal of Nuclear Medicine上的一篇研究论文中,来自斯坦陵布什大学的研究者表示,利用一种定制化的核医学疗法或可作为一种新型的癌症疗法更加有效地进行癌症患者的治疗,该治疗过程同时也有利于一些因靶向辐射而获益的疾病患者。 在核医学中利用放射性药物-放射性化合物进行的靶向治疗或许对癌症具有潜在的治疗作用,尤其是那些癌细胞已经扩散到淋巴结及次级器

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