多功能非病毒载体在肿瘤基因治疗中的应用
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摘要
基因治疗是一种新兴的治疗方式,也是攻克肿瘤最具挑战的研究领域。然而,基因治疗的实现仍然面临着缺乏安全有效转运载体的问题。常用的载体主要包括病毒载体和非病毒载体。病毒载体的转染效率高,但近年来因存在安全性问题,其临床使用受到了制约。非病毒载体具有免疫原性低、安全性高、易于制备且基因容量大等优势,目前越来越受到研究学者的关注。尤其近年来发展了一系列多功能非病毒载体,将多种功能整合于同一个非病毒载体中,使之能同时实现靶向、成像、示踪、光热疗、载药或可控释药等,从而达到了更加有效的治疗肿瘤的目的。现就近年来国内外对于影像导向、光热驱动、联合药物3种多功能病毒载体在肿瘤基因治疗中的应用作一综述,阐述其优点及临床应用前景,了解其发展方向。
引文
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