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首页> 外文期刊>Biomaterials Science >Affinity of plant viral nanoparticle potato virus X (PVX) towards malignant B cells enables cancer drug delivery
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Affinity of plant viral nanoparticle potato virus X (PVX) towards malignant B cells enables cancer drug delivery

机译:植物病毒纳米粒子马铃薯病毒X(PVX)对恶性B细胞的亲和力使癌症药物递送

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摘要

Non-Hodgkin's B cell lymphomas (NHL) include a diverse set of neoplasms that constitute similar to 90% of all lymphomas and the largest subset of blood cancers. While chemotherapy is the first line of treatment, the efficacy of contemporary chemotherapies is hampered by dose-limiting toxicities. Partly due to suboptimal dosing, similar to 40% of patients exhibit relapsed or refractory disease. Therefore more efficacious drug delivery systems are urgently needed to improve survival of NHL patients. In this study we demonstrate a new drug delivery platform for NHL based on the plant virus Potato virus X (PVX). We observed a binding affinity of PVX towards malignant B cells. In a metastatic mouse model of NHL, we show that systemically administered PVX home to tissues harboring malignant B cells. When loaded with the chemotherapy monomethyl auristatin (MMAE), the PVX nanocarrier enables effective delivery of MMAE to human B lymphoma cells in a NHL mouse model leading to inhibition of lymphoma growthin vivoand improved survival. Thus, PVX nanoparticle is a promising drug delivery platform for B cell malignancies.
机译:非霍奇金的B细胞淋巴瘤(NHL)包括各种各样的肿瘤,其构成与所有淋巴瘤的90%相似,最大的血液癌症子集。虽然化疗是第一线治疗,但当代化疗的疗效被剂量限制毒性受到阻碍。部分原因是次优剂量,类似于40%的患者表现出复发或难治性疾病。因此,迫切需要更有效的药物递送系统来改善NHL患者的存活。在这项研究中,我们证明了基于植物病毒马铃薯病毒X(PVX)的NHL的新药递送平台。我们观察到PVX对恶性B细胞的结合亲和力。在NHL的转移小鼠模型中,我们表明系统施用的PVX家庭与患有恶性B细胞的组织。加载用化疗单甲基Auristatin(MMAE)时,PVX纳米载波使得能够在NHL小鼠模型中有效地向人B淋巴瘤细胞中递送,导致淋巴瘤生长的抑制性含量改善的存活。因此,PVX纳米粒子是B细胞恶性肿瘤的有希望的药物递送平台。

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