An implantable blood clot-based immune niche for enhanced cancer vaccination.

An implantable blood clot-based immune niche for enhanced cancer vaccination.
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基于可植入血凝块的免疫生态位,用于增强癌症疫苗接种

DOI:
10.1126/sciadv.abb4639
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发表时间:
2020-09
期刊:
影响因子:
13.6
通讯作者:
Wang C
Wang C
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Fan Q;Ma Q;Bai J;Xu J;Fei Z;Dong Z;Maruyama A;Leong KW;Liu Z;Wang C

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开发了一种基于血栓的可植入癌症疫苗,用于增强癌症免疫治疗。使用癌症疫苗的癌症免疫治疗在预防和治疗癌症方面显示出巨大的潜力。在这里,我们报告了一种用于增强癌症疫苗接种的可植入自体血凝块支架。它包括通过血液凝固形成的凝胶状纤维蛋白网络,以捕获大量红细胞。在植入后,血凝块中的交联红细胞可以吸引和招募大量的免疫细胞,从而形成“免疫生态位”。血凝块疫苗(BCV)包裹有肿瘤相关抗原和佐剂,可以诱导强大的抗癌免疫应答。在B16 F10和4T1肿瘤模型中,与免疫检查点阻断相结合的BCV可有效抑制肿瘤生长。所提出的可植入血凝块癌症疫苗可以通过将来自癌症患者的血液与免疫调节剂离体混合,然后再植入同一患者体内以用于未来临床转化中的个性化癌症免疫治疗来容易地制备。
An implantable blood clot–based cancer vaccine is developed for enhanced cancer immunotherapy. Cancer immunotherapy using cancer vaccines has shown great potential in the prevention and treatment of cancer. Here, we report an implantable autologous blood clot scaffold for enhanced cancer vaccination. It comprises a gel-like fibrin network formed by coagulation of blood to trap a large number of red blood cells. Upon implantation, the cross-linked RBCs in the blood clot can attract and recruit a great number of immune cells, leading to the formation of an “immune niche.” Encapsulated with tumor-associated antigen and adjuvant, the blood clot vaccine (BCV) can induce a robust anticancer immune response. The BCV combined with immune checkpoint blockade effectively inhibits tumor growth in B16F10 and 4T1 tumor models. The proposed implantable blood clot cancer vaccine can be readily made by mixing the blood from patients with cancer with immunomodulating agents ex vivo, followed by reimplantation into the same patient for personalized cancer immunotherapy in future clinical translation.
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