基于杂交 M13 噬菌体的个体化癌症免疫治疗疫苗平台。
Hybrid M13 bacteriophage-based vaccine platform for personalized cancer immunotherapy.
机构信息
Institute for Advanced Studies, Wuhan University, Wuhan 430072, PR China.
Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, PR China.
出版信息
Biomaterials. 2022 Oct;289:121763. doi: 10.1016/j.biomaterials.2022.121763. Epub 2022 Aug 26.
Although cancer vaccines exhibit great advances in the field of immunotherapy, developing an efficient vaccine platform for personalized tumor immunotherapy is still a major challenge. Here we demonstrate that a bioactive vaccine platform (HMP@Ag) fabricated with hybrid M13 phage and personal tumor antigens can facilitate delivery of antigens into lymph nodes and activate antigen-presenting cells (APCs) through the Toll-like receptor 9 (TLR9) signaling pathway, which boosts both innate and adaptive immune response. As an adjuvant platform, hybrid M13 phages can deliver various tumor-specific antigens through simple adsorption to support the current development of personalized vaccines for cancers. Notably, the HMP@Ag vaccine not only prevented the tumors, but also delayed the tumor growth in established (subcutaneous and orthotopic) and metastatic tumor-bearing models while synergy with immune checkpoint blockade (ICB) therapy. Moreover, HMP@Ag triggered a robust neoantigen-based specific immune response in tumor-specific mutation models. In a clinically relevant surgery model, using autologous cell membrane from primary tumors-based HMP@Ag cooperation with ICB dramatically inhibited the post-operation recurrence, and elicited a long-term immune memory effect simultaneously. These findings imply that the M13 phage represents a powerful tool to develop a bio-activated hybrid platform for personalized therapy.
尽管癌症疫苗在免疫疗法领域取得了重大进展,但开发用于个性化肿瘤免疫治疗的有效疫苗平台仍然是一个主要挑战。在这里,我们证明了一种由杂交 M13 噬菌体和个人肿瘤抗原制成的生物活性疫苗平台(HMP@Ag)可以通过 Toll 样受体 9(TLR9)信号通路将抗原递送入淋巴结并激活抗原呈递细胞(APC),从而增强先天和适应性免疫反应。作为一种佐剂平台,杂交 M13 噬菌体可以通过简单吸附来递送各种肿瘤特异性抗原,以支持当前癌症个性化疫苗的发展。值得注意的是,HMP@Ag 疫苗不仅可以预防肿瘤,而且可以延迟已建立的(皮下和原位)和转移性荷瘤模型中的肿瘤生长,同时与免疫检查点阻断(ICB)治疗协同作用。此外,HMP@Ag 在肿瘤特异性突变模型中引发了强大的基于新抗原的特异性免疫反应。在一个临床相关的手术模型中,使用源自原发性肿瘤的自体细胞膜的 HMP@Ag 与 ICB 合作,可显著抑制术后复发,并同时引发长期免疫记忆效应。这些发现表明,M13 噬菌体代表了开发个性化治疗用生物激活杂交平台的强大工具。