PMID- 25243135 OWN - NLM STAT- MEDLINE DCOM- 20160515 LR - 20211021 IS - 2314-6141 (Electronic) IS - 2314-6133 (Print) VI - 2014 DP - 2014 TI - BDNF increases survival and neuronal differentiation of human neural precursor cells cotransplanted with a nanofiber gel to the auditory nerve in a rat model of neuronal damage. PG - 356415 LID - 10.1155/2014/356415 [doi] LID - 356415 AB - OBJECTIVES: To study possible nerve regeneration of a damaged auditory nerve by the use of stem cell transplantation. METHODS: We transplanted HNPCs to the rat AN trunk by the internal auditory meatus (IAM). Furthermore, we studied if addition of BDNF affects survival and phenotypic differentiation of the grafted HNPCs. A bioactive nanofiber gel (PA gel), in selected groups mixed with BDNF, was applied close to the implanted cells. Before transplantation, all rats had been deafened by a round window niche application of beta-bungarotoxin. This neurotoxin causes a selective toxic destruction of the AN while keeping the hair cells intact. RESULTS: Overall, HNPCs survived well for up to six weeks in all groups. However, transplants receiving the BDNF-containing PA gel demonstrated significantly higher numbers of HNPCs and neuronal differentiation. At six weeks, a majority of the HNPCs had migrated into the brain stem and differentiated. Differentiated human cells as well as neurites were observed in the vicinity of the cochlear nucleus. CONCLUSION: Our results indicate that human neural precursor cells (HNPC) integration with host tissue benefits from additional brain derived neurotrophic factor (BDNF) treatment and that these cells appear to be good candidates for further regenerative studies on the auditory nerve (AN). FAU - Jiao, Yu AU - Jiao Y AD - Center for Hearing and Communication Research, Karolinska University Hospital, 171 76 Stockholm, Sweden ; Department of Clinical Sciences, Intervention and Technology (CLINTEC), Section of Otorhinolaryngology, Karolinska Institutet, Karolinska University Hospital, 171 76 Stockholm, Sweden ; Department of Otolaryngology, Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China. FAU - Palmgren, Bjorn AU - Palmgren B AD - Center for Hearing and Communication Research, Karolinska University Hospital, 171 76 Stockholm, Sweden ; Department of Clinical Sciences, Intervention and Technology (CLINTEC), Section of Otorhinolaryngology, Karolinska Institutet, Karolinska University Hospital, 171 76 Stockholm, Sweden. FAU - Novozhilova, Ekaterina AU - Novozhilova E AD - Center for Hearing and Communication Research, Karolinska University Hospital, 171 76 Stockholm, Sweden ; Department of Clinical Sciences, Intervention and Technology (CLINTEC), Section of Otorhinolaryngology, Karolinska Institutet, Karolinska University Hospital, 171 76 Stockholm, Sweden. FAU - Englund Johansson, Ulrica AU - Englund Johansson U AD - Department of Ophthalmology, Institution of Clinical Sciences in Lund, Lund University, 221 84 Lund, Sweden. FAU - Spieles-Engemann, Anne L AU - Spieles-Engemann AL AD - Center for Hearing and Communication Research, Karolinska University Hospital, 171 76 Stockholm, Sweden ; Department of Clinical Sciences, Intervention and Technology (CLINTEC), Section of Otorhinolaryngology, Karolinska Institutet, Karolinska University Hospital, 171 76 Stockholm, Sweden. FAU - Kale, Ajay AU - Kale A AD - Center for Hearing and Communication Research, Karolinska University Hospital, 171 76 Stockholm, Sweden ; Department of Clinical Sciences, Intervention and Technology (CLINTEC), Section of Otorhinolaryngology, Karolinska Institutet, Karolinska University Hospital, 171 76 Stockholm, Sweden. FAU - Stupp, Samuel I AU - Stupp SI AD - Departments of Chemistry, Materials Science and Engineering, and Medicine and Institute for Bionanotechnology in Medicine, Northwestern University, Chicago, IL 60208, USA. FAU - Olivius, Petri AU - Olivius P AD - Department of Clinical Sciences, Intervention and Technology (CLINTEC), Section of Otorhinolaryngology, Karolinska Institutet, Karolinska University Hospital, 171 76 Stockholm, Sweden ; Division of Otorhinolaryngology, Linkoping University Hospital, 581 85 Linkoping, Sweden ; Division of Otorhinolaryngology, Department of Clinical and Experimental Medicine, University of Linkoping, 581 85 Linkoping, Sweden. LA - eng PT - Journal Article DEP - 20140826 PL - United States TA - Biomed Res Int JT - BioMed research international JID - 101600173 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Gels) RN - 147336-22-9 (Green Fluorescent Proteins) SB - IM MH - Animals MH - Brain-Derived Neurotrophic Factor/*pharmacology MH - Cell Count MH - Cell Differentiation/*drug effects MH - Cell Survival/drug effects MH - Cochlear Nerve/drug effects/*pathology MH - Disease Models, Animal MH - Female MH - Gels/chemistry MH - Green Fluorescent Proteins/metabolism MH - Humans MH - Nanofibers/*chemistry MH - Neural Stem Cells/*cytology/drug effects/metabolism MH - Neurons/*cytology/drug effects/metabolism/*pathology MH - Rats, Sprague-Dawley MH - *Stem Cell Transplantation PMC - PMC4160623 EDAT- 2014/09/23 06:00 MHDA- 2016/05/18 06:00 PMCR- 2014/08/26 CRDT- 2014/09/23 06:00 PHST- 2014/02/21 00:00 [received] PHST- 2014/05/02 00:00 [revised] PHST- 2014/07/29 00:00 [accepted] PHST- 2014/09/23 06:00 [entrez] PHST- 2014/09/23 06:00 [pubmed] PHST- 2016/05/18 06:00 [medline] PHST- 2014/08/26 00:00 [pmc-release] AID - 10.1155/2014/356415 [doi] PST - ppublish SO - Biomed Res Int. 2014;2014:356415. doi: 10.1155/2014/356415. Epub 2014 Aug 26.