检索结果-南通市图书馆

Targeting of auF1 to vascular endothelial cells as a novel anti-aging therapy

Journal of Geriatric Cardiology 2017年第8期14卷 515-523页

作者： Jian HE Ya-Feng JIANG Liu LIANG Du-jin WANG Wen-Xin WEI Pan-Pan JI Yao-Chan HUANG Hui SONG Xiao-Ling LU Yong-Xiang ZHAO National Center for International Research of Biological Targeting Diagnosis and Therapy Guangxi Key Laboratory of Biological Targeting Diagnosis andTherapy Research 'Collaborative lnnovatton Center for Targeting Tumor Diagnosis and TherapyGuangxi Medical UniversityNanningGuangxiChina

Background Inhibition of aging of vascular endothelial cells （VECs） may delay aging and prolong life. The goal of this study was to prepare anti-CD31 monoclonal antibody conjugated PEG-modified liposomes containing the au-rich region connecting factor 1 （auF1） gene （CD31-PILs-auF1） and to explore the effects of targeting CD31-PILs-auF1 to aging VECs. Methods The mean particle sizes of various PEGylated immunoliposomes （PILs） were measured using a Zetasizer Nano ZS. Gel retardation assay was used to confirm whether PILs had encapsulated the auF1 plasmid successfully. Fluorescence microscopy and flow cytometry were used to quantify binding of CD31-PILs-auF1 to target cells. Flow cytometry was also used to analyze the cell cycles of aging bEnd3 cells treated with CD31-PILs-auF1. We also developed an aging mouse model by treating mice with D-galactose. Enzyme-linked immunosorbent assay （ELISA） was used to evaluate the levels of interleuldn-6 （IL-6） and tumor necrosis factor-or （TNF-ct）. The malondialdehyde （MDA） and the superoxide dismutase （SOD） levels were detected by commercial kits. Hematoxylin-eosin （HE） staining was used to determine whether treatment with CD31-PILs-auF 1 was toxic to the mice. Results CD31-PILs-auF 1 specifically could targeted bEnd3 VECs and increased the percentage of cells in the S and G2/M phases of aging bEnd3 cells. ELISA showed that content of the IL-6 and TNF-ct decreased in CD31-PILs-auF1 group. The level of SOD increased, whereas MDA decreased in the CD31-PILs-auF1 group. Additionally, CD31-PILs-auF 1 was not toxic to the mice. Conclusion CD31-PILs-auF 1 targets VECs and may delay their senescence.

关键词： Aging au-rich region connecting factor 1 PEGylated immunoliposomes Vascular endothelial ceils

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：