Quantitative proteomic analysis of human umbilical cord mesenchymal stem cells with pigment epithelium-derived factor gene modification mediated by lentivirus
10.3760/cma.j.cn115989-20200609-00408
- VernacularTitle:慢病毒介导 PEDF基因修饰人脐带间充质干细胞的定量蛋白质组学研究
- Author:
Yilin JIANG
1
;
Xiaomin ZHANG
;
Xianfeng SHAO
;
Jinying AN
;
Lin SU
;
Yuanfeng JIANG
;
Xiaorong LI
Author Information
1. 天津医科大学眼科医院 天津医科大学眼视光学院 天津医科大学眼科研究所 天津市视网膜功能与疾病重点实验室 天津市眼科学与视觉科学国际联合研究中心 300384
- Keywords:
Pigment epithelium-derived factor;
Umbilical cord;
Mesenchymal stem cells;
Proteomics;
Neovascular eye disease;
Therapy
- From:
Chinese Journal of Experimental Ophthalmology
2021;39(10):845-851
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the protein expression changes of human umbilical cord mesenchymal stem cells (hUCMSCs) modified with pigment epithelium-derived factor ( PEDF) gene mediated by lentivirus. Methods:The hUCMSCs were divided into the control group and experimental group.Cells in the control group were normal hUCMSCs and the cells in experimental group were hUCMSCs with PEDF modification.The proteins from the two groups were collected and processed by FASP method.Samples were fractionated by liquid chromatography and analyzed by tandem mass spectrometry, and SWATH mode was applied.Differential protein analysis, Gene Ontology (GO) analysis and Reactome pathway enrichment analysis were performed. Results:A total of 5 361 quantified proteins were detected in this experiment, of which 432 proteins were differentially expressed (fold change>1.5, P<0.05). There were 219 of the 432 proteins up-regulated, including serpin family F member 1 (SERPINF1) (PEDF), DEAD-box helicase 59 (DDX59) and thrombospondin 1 (THBS1), etc., whereas 213 proteins were down-regulated, including collagen type Ⅰ alpha 1 (COL1A1), COL18A1, etc.GO analysis indicated that the differential proteins were mainly involved in fibrinolysis, extracellular structure organization, regulation of transporter activity, biosynthetic process of secondary alcohol and cholesterol, coenzyme metabolic process and regulation of peptidase activity, etc.Reactome pathway analysis showed that the differential proteins were mostly involved in regulation of insulin like growth factor (IGF) transport and uptake by IGF binding protein, post-translational protein phosphorylation, extracellular matrix organization, metabolism of steroids. Conclusions:After gene modification with PEDF mediated by lentivirus, the expression of many proteins in hUCMSCs were changed. PEDF gene modification can alter the structure of extracellular matrix and regulate the expression of proteins associated with cell proliferation, self-renewal and multipotency.
