Premium
siRNA‐mediated silencing of PAI‐1 gene acts as a promoter over the recanalization of endothelial progenitor cells in rats with venous thrombosis
Author(s) -
Li Hang,
Zhang Bo,
Lu Shan,
Ji DeGang,
Ding Meng,
Ye YanShuo,
Sun DaJun
Publication year - 2019
Publication title -
journal of cellular physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.529
H-Index - 174
eISSN - 1097-4652
pISSN - 0021-9541
DOI - 10.1002/jcp.28590
Subject(s) - gene silencing , matrigel , progenitor cell , gene knockdown , small interfering rna , plasminogen activator inhibitor 1 , vascular endothelial growth factor , thrombus , biology , angiogenesis , messenger rna , small hairpin rna , microbiology and biotechnology , cancer research , medicine , plasminogen activator , cell culture , endocrinology , stem cell , gene , transfection , biochemistry , genetics , vegf receptors
Abstract With the changing lifestyle, venous thrombosis (VT) is becoming increasingly prevalent and poses a burden on the health economy. Endothelial progenitor cells (EPCs) are recruited into resolving VT. We aimed to investigate the effect of plasminogen activator inhibitor 1 ( PAI‐1 ) silencing on the recanalization of VT in rat EPCs. EPCs and VT rat models were cultured and treated with negative control‐siRNA vector and PAI‐1‐siRNA vector, respectively. 4,5‐Dimethylthiazol‐2‐yl)‐2,5‐diphenyltetrazolium bromide assay, wound‐healing test, and Matrigel‐induced tubular experiment were performed to detect the ability of cell proliferation, migration, and EPCs lumen formation. Immunohistochemistry was used to observe the recanalization of thrombus. The messenger RNA (mRNA) and protein expression of PAI‐1 and vascular endothelial growth factor (VEGF) were determined by reverse transcription quantitative polymerase chain reaction and Western blot analysis. PAI‐1‐siRNA enhances the luminal formation ability of EPCs and significantly promotes EPCs homing. In response to PAI‐1 gene silencing, tissues from inferior vena cava displayed reduced mRNA and protein expression of PAI‐1, increased VEGF expression as well as promoted lumen‐like structures. PAI‐1 gene silencing can promote the recanalization of VT by enhancement of the luminal formation ability of rats’ EPCs.