Zhao Xuefen, Yan Chao
Northern Jiangsu People's Hospital, Yangzhou, 225001, People's Republic of China.
The Affiliated Huai'an Hospital of Xuzhou Medical University and The Second People's Hospital of Huai'an, No. 62, Huaihai Road (S.), Huai'an, 223002, People's Republic of China.
Nanoscale Res Lett. 2022 Mar 22;17(1):36. doi: 10.1186/s11671-022-03673-9.
Nanoparticles have unique properties and high design flexibility, which are thought to be safe, site-specific, and efficient drug delivery systems. However, nanoparticles as exogenous materials can provide recognition and be eliminated by the body's immune system, which considerably restricts their applications. To overcome these drawbacks, natural cell membrane coating method has attracted great attention in the field of drug delivery systems, which can prolong nanoparticles blood circulation time and avoiding the capture as well as elimination by the body immune system. Biomimetic nanoparticles via a top-down approach can avoid the laborious group modified engineering and keep the integrity of cell membrane structure and membrane antigens, which can be endowed with unique properties, such as immune escape, longer blood circulation time, targeting delivery and controlling drugs sustain-release. At the present research, erythrocyte membrane, cancer cell membrane, platelet membrane, lymphocyte membrane and hybrid membrane have been successfully coated into the surface of nanoparticles to achieve biological camouflage. Thus, integrating various kinds of cell membranes and nanoparticles into one system, the biomimetic nanoparticles can inherit unique biofunction and drug delivery properties to exhibit tumor targeting-delivery and antitumor outcomes. In this article, we will discuss the prospects and challenges of some basic cell membrane cloaking nanoparticles as a drug delivery system for cancer therapy.
纳米颗粒具有独特的性质和高度的设计灵活性,被认为是安全、具有位点特异性且高效的药物递送系统。然而,纳米颗粒作为外源性物质会被机体免疫系统识别并清除,这极大地限制了它们的应用。为克服这些缺点,天然细胞膜包被方法在药物递送系统领域引起了极大关注,该方法可延长纳米颗粒的血液循环时间,并避免被机体免疫系统捕获和清除。通过自上而下的方法制备的仿生纳米颗粒可避免繁琐的基团修饰工程,并保持细胞膜结构和膜抗原的完整性,从而赋予其独特的性质,如免疫逃逸、更长的血液循环时间、靶向递送和控制药物缓释。在目前的研究中,红细胞膜、癌细胞膜、血小板膜、淋巴细胞膜和混合膜已成功包被在纳米颗粒表面以实现生物伪装。因此,将各种细胞膜与纳米颗粒整合到一个系统中,仿生纳米颗粒可继承独特的生物功能和药物递送特性,以展现肿瘤靶向递送和抗肿瘤效果。在本文中,我们将讨论一些基本的细胞膜包裹纳米颗粒作为癌症治疗药物递送系统的前景和挑战。
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