弥合纳米平台与疫苗递送的差距,探索增强鼻内免疫的策略全景。

Bridging nanoplatform and vaccine delivery, a landscape of strategy to enhance nasal immunity.

机构信息

College of Marine Life Science, Ocean University of China, Qingdao 266003, PR China.

College of Marine Life Science, Ocean University of China, Qingdao 266003, PR China; Qingdao National Laboratory for Marine Science and Technology, Qingdao 266000, PR China.

出版信息

J Control Release. 2022 Nov;351:456-475. doi: 10.1016/j.jconrel.2022.09.044. Epub 2022 Sep 29.

Abstract

Vaccination is an urgently needed and effective option to address epidemic, cancers, allergies, and other diseases. Nasal administration of vaccines offers many benefits over needle-based injection including high compliance and less risk of infection. Inactivated or attenuated vaccines as convention vaccine present potential risks of pathogenic virulence reversal, the focus of nasal vaccine development has shifted to the use of next-generation (subunit and nucleic acid) vaccines. However, subunit and nucleic acid vaccine intranasally have numerous challenges in development and utilization due to mucociliary clearance, mucosal epithelial tight junction, and enzyme/pH degradation. Nanoplatforms as ideal delivery systems, with the ability to enhance the retention, penetration, and uptake of nasal mucosa, shows great potential in improving immunogenic efficacy of nasal vaccine. This review provides an overview of delivery strategies for overcoming nasal barrier, including mucosal adhesion, mucus penetration, targeting of antigen presenting cells (APCs), enhancement of paracellular transportation. We discuss methods of enhancing antigen immunogenicity by nanoplatforms as immune-modulators or multi-antigen co-delivery. Meanwhile, we describe the application status and development prospect of nanoplatforms for nasal vaccine administration. Development of nanoplatforms for vaccine delivery via nasal route will facilitate large-scale and faster global vaccination, helping to address the threat of epidemics.

摘要

疫苗接种是应对传染病、癌症、过敏和其他疾病的迫切需要和有效选择。与针剂注射相比,疫苗经鼻腔给药具有许多优势,包括高顺应性和更低的感染风险。作为常规疫苗的灭活或减毒疫苗存在潜在的致病毒力逆转风险,因此,鼻腔疫苗开发的重点已转向使用下一代(亚单位和核酸)疫苗。然而,由于黏液纤毛清除、黏膜上皮紧密连接和酶/ pH 降解,亚单位和核酸疫苗经鼻腔给药在开发和利用方面存在诸多挑战。纳米平台作为理想的给药系统,具有增强鼻腔黏膜保留、穿透和摄取的能力,在提高鼻腔疫苗免疫原性方面显示出巨大潜力。本文综述了克服鼻腔屏障的给药策略,包括黏膜黏附、黏液穿透、抗原提呈细胞(APC)靶向、增强细胞旁转运。我们讨论了纳米平台作为免疫调节剂或多抗原共递送来增强抗原免疫原性的方法。同时,我们描述了用于鼻腔疫苗给药的纳米平台的应用现状和发展前景。通过鼻腔途径开发疫苗纳米平台将有助于大规模、更快地进行全球疫苗接种,有助于应对传染病的威胁。

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