源自小鼠细胞系的外泌体的细胞类型特异性及共同特征:产量、物理化学性质和药代动力学。

Cell type-specific and common characteristics of exosomes derived from mouse cell lines: Yield, physicochemical properties, and pharmacokinetics.

作者信息

Charoenviriyakul Chonlada, Takahashi Yuki, Morishita Masaki, Matsumoto Akihiro, Nishikawa Makiya, Takakura Yoshinobu

机构信息

Department of Biopharmaceutics and Drug Metabolism, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan.

Department of Biopharmaceutics and Drug Metabolism, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan.

出版信息

Eur J Pharm Sci. 2017 Jan 1;96:316-322. doi: 10.1016/j.ejps.2016.10.009. Epub 2016 Oct 5.

Abstract

Exosomes are small membrane vesicles secreted from cells and are expected to be used as drug delivery systems. Important characteristics of exosomes, such as yield, physicochemical properties, and pharmacokinetics, may be different among different cell types. However, there is limited information about the effect of cell type on these characteristics. In the present study, we evaluated these characteristics of exosomes derived from five different types of mouse cell lines: B16BL6 murine melanoma cells, C2C12 murine myoblast cells, NIH3T3 murine fibroblasts cells, MAEC murine aortic endothelial cells, and RAW264.7 murine macrophage-like cells. Exosomes were collected using a differential ultracentrifugation method. The exosomes collected from all the cell types were negatively charged globular vesicles with a diameter of approximately 100nm. C2C12 and RAW264.7 cells produced more exosomes than the other types of cells. The exosomes were labeled with a fusion protein of Gaussia luciferase and lactadherin to evaluate their pharmacokinetics. After intravenous injection into mice, all the exosomes rapidly disappeared from the systemic circulation and mainly distributed to the liver. In conclusion, the exosome yield was significantly different among the cell types, and all the exosomes evaluated in this study showed comparable physicochemical and pharmacokinetic properties.

摘要

外泌体是细胞分泌的小膜泡,有望用作药物递送系统。外泌体的重要特性,如产量、物理化学性质和药代动力学,在不同细胞类型之间可能有所不同。然而,关于细胞类型对这些特性的影响的信息有限。在本研究中,我们评估了源自五种不同类型小鼠细胞系的外泌体的这些特性:B16BL6小鼠黑色素瘤细胞、C2C12小鼠成肌细胞、NIH3T3小鼠成纤维细胞、MAEC小鼠主动脉内皮细胞和RAW264.7小鼠巨噬细胞样细胞。使用差速超速离心法收集外泌体。从所有细胞类型收集的外泌体都是带负电荷的球形囊泡,直径约为100nm。C2C12和RAW264.7细胞产生的外泌体比其他类型的细胞更多。用高斯荧光素酶和乳黏附素的融合蛋白标记外泌体以评估其药代动力学。静脉注射到小鼠体内后,所有外泌体迅速从体循环中消失,主要分布到肝脏。总之,细胞类型之间的外泌体产量存在显著差异,本研究中评估的所有外泌体均显示出可比的物理化学和药代动力学性质。

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