Bispecific T-cell engager (BiTE) immunotherapy of ovarian cancer based on MIL-88A MOF/MC gene delivery system

Bispecific T-cell engager (BiTE) immunotherapy of ovarian cancer based on MIL-88A MOF/MC gene delivery system
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基于MIL-88A MOF/MC基因递送系统的卵巢癌双特异性T细胞接合器(BiTE)免疫治疗

DOI:
10.1016/j.apmt.2020.100701
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发表时间:
2020-09
影响因子:
8.3
通讯作者:
Guocheng Wang
Guocheng Wang
中科院分区:
材料科学2区
文献类型:
--
作者:
Jing Zhao;Danping Lu;Sergio Moya;Haoying Yan;Miaojuan Qiu;JunZong Chen;Xincheng Wang;Yang Li;Haobo Pan;Guochuang Chen;Guocheng Wang

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双特异性T细胞结合蛋白(BITE)免疫治疗是一种很有前途的癌症治疗方法。然而,咬合成本高、活体寿命短限制了其在临床上的广泛应用。在此,我们首次构建了基于MIL-88A金属有机骨架纳米颗粒和小分子DNA的基因递送系统(MOF/MC),以实现抗CD3/抗EpCAM BIT的高效活体表达。X射线光电子能谱(XPS)和动态光散射(DLS)分析证实MC分子通过金属-磷键和静电相互作用被负载到MOF纳米粒子上。结果表明,小鼠腹腔注射(I.P.)MOF/MC悬浮液在小鼠腹腔内具有良好的转染性,且毒性较低。在用SKOV3卵巢细胞建立的小鼠腹膜内移植模型中,腹腔注射。注射MOF/MC.BiTE可显著抑制肿瘤生长,延长小鼠的平均生存时间。总体而言,我们的研究证明了一种简单而高效的基于MOF的基因传递系统,有望实现有效的卵巢癌免疫治疗。
Bispecific T-cell engager (BiTE) immunotherapy is a promising therapy for cancer treatment. However, the high cost and short life-timein vivoof the BiTE limit its wide clinical application. Here, we built for the first time a gene delivery system based on MIL-88A metal organic framework nanoparticles and minicricle DNA (MOF/MC) to realize high-efficientin vivoexpression of anti-CD3/anti-EpCAM BiTE. X-ray photoelectron spectroscopy (XPS) and dynamic light scattering (DLS) analysis verified that MC molecules were loaded onto MOF nanoparticles through metal-phosphate bonds and electrostatic interactions. It is found that intraperitoneal injection (i.p.) of MOF/MC suspensions showed good transfection performance in mice abdominal cavity with low toxicity. In an intraperitoneal xenograft mice model established using SKOV3 ovarian cells, i.p. injection of MOF/MC.BiTE significantly inhibited tumor growth and prolonged the average survival time of the mice. Overall, our study demonstrates a simple and highly efficient MOF-based gene delivery system holding promise for effective ovarian cancer immunotherapy.
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