PMID- 27147644 OWN - NLM STAT- MEDLINE DCOM- 20171129 LR - 20180205 IS - 1748-605X (Electronic) IS - 1748-6041 (Linking) VI - 11 IP - 3 DP - 2016 May 5 TI - The migration and differentiation of hUC-MSCs(CXCR4/GFP) encapsulated in BDNF/chitosan scaffolds for brain tissue engineering. PG - 035004 LID - 10.1088/1748-6041/11/3/035004 [doi] AB - We previously developed a biomaterial scaffold that could effectively provide seed cells to a lesion cavity resulting from traumatic brain injury. However, we subsequently found that few transplanted human umbilical cord mesenchymal stem cells (hUC-MSCs) are able to migrate from the scaffold to the lesion boundary. Stromal derived-cell factor-1alpha and its receptor chemokine (C-X-C motif) receptor (CXCR)4 are chemotactic factors that control cell migration and stem cell recruitment to target areas. Given the low expression level of CXCR4 on the hUC-MSC membrane, lentiviral vectors were used to generate hUC-MSCs stably expressing CXCR4 fused to green fluorescent protein (GFP) (hUC-MSCs(CXCR4/GFP)). We constructed a scaffold in which recombinant human brain-derived neurotrophic factor (BDNF) was linked to chitosan scaffolds with the crosslinking agent genipin (CGB scaffold). The scaffold containing hUC-MSCs(CXCR4/GFP) was transplanted into the lesion cavity of a rat brain, providing exogenous hUC-MSCs to both lesion boundary and cavity. These results demonstrate a novel strategy for inducing tissue regeneration after traumatic brain injury. FAU - Huang, Chuanjun AU - Huang C AD - Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, People's Republic of China. FAU - Zhao, Longxiang AU - Zhao L FAU - Gu, Jun AU - Gu J FAU - Nie, Dekang AU - Nie D FAU - Chen, Yinan AU - Chen Y FAU - Zuo, Hao AU - Zuo H FAU - Huan, Wei AU - Huan W FAU - Shi, Jinlong AU - Shi J FAU - Chen, Jian AU - Chen J FAU - Shi, Wei AU - Shi W LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20160505 PL - England TA - Biomed Mater JT - Biomedical materials (Bristol, England) JID - 101285195 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (CXCR4 protein, human) RN - 0 (Cxcr4 protein, rat) RN - 0 (Iridoids) RN - 0 (Receptors, CXCR4) RN - 147336-22-9 (Green Fluorescent Proteins) RN - 9012-76-4 (Chitosan) RN - A3V2NE52YG (genipin) SB - IM MH - Animals MH - Brain/metabolism MH - Brain Injuries, Traumatic/therapy MH - Brain-Derived Neurotrophic Factor/chemistry MH - Cell Adhesion MH - *Cell Differentiation MH - *Cell Movement MH - Cell Proliferation MH - Chitosan/chemistry MH - Gene Expression Profiling MH - Green Fluorescent Proteins/chemistry MH - Humans MH - Iridoids/chemistry MH - Male MH - Rats MH - Rats, Sprague-Dawley MH - Receptors, CXCR4/metabolism MH - Tissue Engineering/*methods MH - *Tissue Scaffolds EDAT- 2016/05/06 06:00 MHDA- 2017/12/01 06:00 CRDT- 2016/05/06 06:00 PHST- 2016/05/06 06:00 [entrez] PHST- 2016/05/06 06:00 [pubmed] PHST- 2017/12/01 06:00 [medline] AID - 10.1088/1748-6041/11/3/035004 [doi] PST - epublish SO - Biomed Mater. 2016 May 5;11(3):035004. doi: 10.1088/1748-6041/11/3/035004.