用明矾和MIP佐剂重组生存素的免疫疗法可抑制小鼠乳腺癌模型中的肿瘤生长。
Immunotherapy approach with recombinant survivin adjuvanted with alum and MIP suppresses tumor growth in murine model of breast cancer.
作者信息
Garg Himani, Gupta Jagdish C, Talwar G P, Dubey Shweta
机构信息
a Amity Institute of Virology and Immunology , Amity University, Uttar Pradesh , Noida , India.
b Talwar Research Foundation, Neb Sarai , New Delhi , India.
出版信息
Prep Biochem Biotechnol. 2018 Mar 16;48(3):264-269. doi: 10.1080/10826068.2018.1425710. Epub 2018 Feb 20.
Survivin has received attention as a potential target for cancer immunotherapy because of its crucial role in oncogenesis. We undertook this study to evaluate the immunotherapeutic potential of combination of recombinant survivin along with adjuvant alum and immune modulator Mycobacterium indicus pranii (MIP). In vivo efficacy of the combination was studied in an invasive murine breast cancer model. Recombinant survivin protein was purified from Escherichia coli based expression system and characterized by western blotting. Purified survivin protein was combined with alum and MIP and was used for immunization of Balb/c mice. Antigen-primed animals were then challenged with syngeneic mammary tumor cells known as 4T-1. Balb/c mice spontaneously develop tumor when inoculated with 4T-1 cells. Antigen and adjuvant combination was immunogenic and significantly suppressed tumor growth in mice immunized with combination of recombinant survivin (10 µg), alum, and MIP. This is the first report that describes a combination immunotherapy approach using recombinant survivin, alum, and MIP in highly metastatic murine breast cancer model and holds promise for development of new biotherapeutics for cancer.
存活素因其在肿瘤发生中的关键作用而作为癌症免疫治疗的潜在靶点受到关注。我们开展这项研究以评估重组存活素与佐剂明矾及免疫调节剂耻垢分枝杆菌(MIP)联合应用的免疫治疗潜力。在侵袭性小鼠乳腺癌模型中研究了该联合用药的体内疗效。从基于大肠杆菌的表达系统中纯化重组存活素蛋白,并通过蛋白质印迹法进行鉴定。将纯化的存活素蛋白与明矾和MIP混合,用于免疫Balb/c小鼠。然后用称为4T-1的同基因乳腺肿瘤细胞对经抗原致敏的动物进行攻击。Balb/c小鼠接种4T-1细胞后会自发形成肿瘤。抗原与佐剂的组合具有免疫原性,并且在用重组存活素(10µg)、明矾和MIP组合免疫的小鼠中显著抑制了肿瘤生长。这是首篇描述在高转移性小鼠乳腺癌模型中使用重组存活素、明矾和MIP进行联合免疫治疗方法的报告,为开发新的癌症生物治疗药物带来了希望。