PMID- 24115396 OWN - NLM STAT- MEDLINE DCOM- 20150204 LR - 20140414 IS - 2192-2659 (Electronic) IS - 2192-2640 (Linking) VI - 3 IP - 4 DP - 2014 Apr TI - Interaction of SH-SY5Y cells with nanogratings during neuronal differentiation: comparison with primary neurons. PG - 581-7 LID - 10.1002/adhm.201300216 [doi] AB - Controlling neuronal cell adhesion, migration, and axonal outgrowth via contact interactions with biomaterials is a critical element for tissue engineering applications and for developing artificial neuronal interfaces. One promising approach relies on the exploitation of nanostructured surfaces. Here, the human neuroblastoma cell line SH-SY5Y is interfaced with plastic nanogratings (NGs; anisotropic topographies composed by alternating lines of grooves and ridges with sub-micrometer lateral dimension). The SH-SY5Y cells' (SHs) contact guidance is investigated under proliferating conditions and upon differentiation after treatment with retinoic acid (RA) and brain-derived neurotrophin factor (BDNF), and compared with mouse primary hippocampal neurons (HNs). Quantitative readouts are obtained by measuring changes in tubulin cytoskeleton organization and cell morphology induced by mechanotransduction. Results demonstrate that SHs effectively retrieve substrate topographical signals, in particular during differentiation. Remarkably, RA/BDNF improves SH responsiveness to NG directional cues, and significantly enhances the alignment to the NG lines. HNs behave similarly, showing a marked change in network organization if cultured on NGs. These results might help the rational engineering of neuro-regenerative scaffolds to improve peripheral nerve wound healing, as well as to investigate the basic mechanisms of neuronal wiring. CI - (c) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. FAU - Tonazzini, Ilaria AU - Tonazzini I AD - NEST, Scuola Normale Superiore and Istituto Nanoscienze-CNR, Piazza San Silvestro 12, 56127, Pisa, Italy. FAU - Cecchini, Alessandra AU - Cecchini A FAU - Elgersma, Ype AU - Elgersma Y FAU - Cecchini, Marco AU - Cecchini M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20131001 PL - Germany TA - Adv Healthc Mater JT - Advanced healthcare materials JID - 101581613 SB - IM MH - Animals MH - Cell Culture Techniques/instrumentation MH - Cell Line, Tumor MH - Hippocampus/cytology MH - Humans MH - Mice MH - Nanostructures/*ultrastructure MH - Neurogenesis/*physiology MH - Neurons/*cytology MH - *Tissue Scaffolds OTO - NOTNLM OT - contact guidance OT - mechanotransduction OT - nanograting OT - neurons EDAT- 2013/10/12 06:00 MHDA- 2015/02/05 06:00 CRDT- 2013/10/12 06:00 PHST- 2013/05/31 00:00 [received] PHST- 2013/08/02 00:00 [revised] PHST- 2013/10/12 06:00 [entrez] PHST- 2013/10/12 06:00 [pubmed] PHST- 2015/02/05 06:00 [medline] AID - 10.1002/adhm.201300216 [doi] PST - ppublish SO - Adv Healthc Mater. 2014 Apr;3(4):581-7. doi: 10.1002/adhm.201300216. Epub 2013 Oct 1.