PMID- 25414029 OWN - NLM STAT- MEDLINE DCOM- 20150916 LR - 20191113 IS - 1875-5631 (Electronic) IS - 1566-5232 (Linking) VI - 15 IP - 1 DP - 2015 TI - Transfection of CXCR-4 using microbubble-mediated ultrasound irradiation and liposomes improves the migratory ability of bone marrow stromal cells. PG - 21-31 AB - Bone marrow stromal cells (BMSCs) have proven useful for the treatment of various human diseases and injuries. However, their reparative capacity is limited by their poor migration and homing ability, which are primarily dependent on the SDF-1/CXCR4 axis. Most subcultured BMSCs lack CXCR4 receptor expression on the cell surface and exhibit impaired migratory capacity. To increase responsiveness to SDF-1 and promote cell migration and survival of cultured BMSCs, we used a combination of ultrasound-targeted microbubble destruction (UTMD) and liposomes to increase CXCR4 expression in vitro. We isolated and cultured rat BMSCs to their third passage and transduced them with recombinant plasmid pDsRed-CXCR4 using microbubble-mediated ultrasound irradiation and liposomes. Compared to some viral vectors, the method we employed here resulted in significantly better transfection efficiency, CXCR4 expression, and technical reproducibility. The benefits of this approach are likely due to the combination of "sonoporation" caused by shockwaves and microjet flow resulting from UTMD-generated cavitation. Following transfection, we performed a transwell migration assay and found that the migration ability of CXCR4-modified BMSCs was 9-fold higher than controls. The methods we describe here provide an effective, safe, non-viral means to achieve high levels of CXCR4 expression. This is associated with enhanced migration of subcultured BMSCs and may be useful for clinical application as well. FAU - Wang, Gong AU - Wang G FAU - Zhuo, Zhongxiong AU - Zhuo Z FAU - Zhang, Qian AU - Zhang Q FAU - Xu, Yali AU - Xu Y FAU - Wu, Shengzheng AU - Wu S FAU - Li, Lu AU - Li L FAU - Xia, Hongmei AU - Xia H FAU - Gao, Yunhua AU - Gao Y AD - Department of Ultrasound, Xinqiao Hospital, The Third Military Medical University, Chongqing, 400037, China. xqgaoyh@gmail.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United Arab Emirates TA - Curr Gene Ther JT - Current gene therapy JID - 101125446 RN - 0 (Cxcr4 protein, rat) RN - 0 (Liposomes) RN - 0 (RNA, Messenger) RN - 0 (Receptors, CXCR4) SB - IM MH - Animals MH - *Cell Movement MH - Cell Proliferation MH - Cell Survival MH - Gene Expression Regulation MH - Liposomes MH - Mesenchymal Stem Cells/*cytology MH - *Microbubbles MH - Microscopy, Electron, Scanning MH - RNA, Messenger/genetics/metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Receptors, CXCR4/*genetics/metabolism MH - Reproducibility of Results MH - Transfection/*methods MH - *Ultrasonics EDAT- 2014/11/22 06:00 MHDA- 2015/09/17 06:00 CRDT- 2014/11/22 06:00 PHST- 2014/07/11 00:00 [received] PHST- 2014/09/16 00:00 [revised] PHST- 2014/10/31 00:00 [accepted] PHST- 2014/11/22 06:00 [entrez] PHST- 2014/11/22 06:00 [pubmed] PHST- 2015/09/17 06:00 [medline] AID - CGT-EPUB-63502 [pii] AID - 10.2174/1566523214666141121111220 [doi] PST - ppublish SO - Curr Gene Ther. 2015;15(1):21-31. doi: 10.2174/1566523214666141121111220.