PMID- 29651947 OWN - NLM STAT- MEDLINE DCOM- 20190409 LR - 20190409 IS - 1875-5631 (Electronic) IS - 1566-5232 (Linking) VI - 18 IP - 1 DP - 2018 TI - Transplantation of BDNF Gene Recombinant Mesenchymal Stem Cells and Adhesive Peptide-modified Hydrogel Scaffold for Spinal Cord Repair. PG - 29-39 LID - 10.2174/1566523218666180413150023 [doi] AB - INTRODUCTION: Mesenchymal Stem Cells (MSCs) are promising candidates for nerve tissue engineering. Brain Derived Neurotrophic Factor (BDNF) secreted by MSCs can function to increase neural differentiation and relieve inflammation response. Gene transfection technology is an efficient strategy to increase the secretion levels of cytokines and enhance cellular functions. However, transfection and in vivo gene expression of environmentally sensitive stem cells have been one of the most challenging subjects due to the requirement in both safety and transfection efficiency. In this study, gene transfection technology was applied to prepare BDNF gene recombinant MSCs based on our previously reported liposomal vector ScreenFect(R) A. To improve cellular survival and gene expression after in situ implantation of MSCs, an adhesive peptide modified hydrogel scaffold was constructed using hyaluronic acid. The scaffold was optimized and modified with an adhesive peptide PPFLMLLKGSTR. The transfected MSCs exhibited improved cellular survival and sustained gene expression in the three-Dimentional (3D) scaffold in vitro. Compared to untransfected MSCs, gene recombinant MSCs effectively improved spinal tissue integrity, inhibited glial scar formation and alleviated inflammatory response. These effects were found discounted when cells were implanted without the scaffold. CONCLUSION: The study developed a promising implantation system for therapy of severe spinal cord injury and provided the first understanding of Screenfect(R) A about its functions on stem cell therapy for nerve tissue repair as well as three-dimentional gene expression. CI - Copyright(c) Bentham Science Publishers; For any queries, please email at epub@benthamscience.org. FAU - Li, Li-Ming AU - Li LM AD - Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, China. AD - Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Hangzhou, Zhejiang, China. FAU - Huang, Ling-Ling AU - Huang LL AD - Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, China. FAU - Jiang, Xin-Chi AU - Jiang XC AD - Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, China. FAU - Chen, Jia-Chen AU - Chen JC AD - Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, China. FAU - OuYang, Hong-Wei AU - OuYang HW AD - Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Hangzhou, Zhejiang, China. FAU - Gao, Jian-Qing AU - Gao JQ AD - Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, China. AD - Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Hangzhou, Zhejiang, China. 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 (Adhesives) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Hydrogels) RN - 0 (Peptides) SB - IM MH - Adhesives/chemistry MH - Animals MH - Brain-Derived Neurotrophic Factor/genetics/*metabolism MH - Cell Differentiation MH - Cell Proliferation MH - Cell Survival MH - Female MH - Genetic Therapy/*methods MH - Humans MH - Hydrogels/chemistry MH - Male MH - Mesenchymal Stem Cell Transplantation/*methods MH - Mesenchymal Stem Cells/*metabolism MH - Peptides/chemistry MH - Rats MH - Rats, Sprague-Dawley MH - Spinal Cord Injuries/genetics/*therapy MH - Tissue Scaffolds/chemistry MH - Transfection OTO - NOTNLM OT - Adhesive peptide OT - Brain derived neurotrophic factor OT - Gene transfection OT - Hydrogel scaffold OT - Mesenchymal stem cells OT - Spinal cord injury. EDAT- 2018/04/14 06:00 MHDA- 2019/04/10 06:00 CRDT- 2018/04/14 06:00 PHST- 2017/07/07 00:00 [received] PHST- 2017/11/24 00:00 [revised] PHST- 2017/11/30 00:00 [accepted] PHST- 2018/04/14 06:00 [pubmed] PHST- 2019/04/10 06:00 [medline] PHST- 2018/04/14 06:00 [entrez] AID - CGT-EPUB-89715 [pii] AID - 10.2174/1566523218666180413150023 [doi] PST - ppublish SO - Curr Gene Ther. 2018;18(1):29-39. doi: 10.2174/1566523218666180413150023.