PMID- 26327218 OWN - NLM STAT- MEDLINE DCOM- 20151028 LR - 20181202 IS - 1940-087X (Electronic) IS - 1940-087X (Linking) IP - 102 DP - 2015 Aug 14 TI - Analysis of Developing Tooth Germ Innervation Using Microfluidic Co-culture Devices. PG - e53114 LID - 10.3791/53114 [doi] LID - 53114 AB - Innervation plays a key role in the development, homeostasis and regeneration of organs and tissues. However, the mechanisms underlying these phenomena are not well understood yet. In particular, the role of innervation in tooth development and regeneration is neglected. Several in vivo studies have provided important information about the patterns of innervation of dental tissues during development and repair processes of various animal models. However, most of these approaches are not optimal to highlight the molecular basis of the interactions between nerve fibres and target organs and tissues. Co-cultures constitute a valuable method to investigate and manipulate the interactions between nerve fibres and teeth in a controlled and isolated environment. In the last decades, conventional co-cultures using the same culture medium have been performed for very short periods (e.g., two days) to investigate the attractive or repulsive effects of developing oral and dental tissues on sensory nerve fibres. However, extension of the culture period is required to investigate the effects of innervation on tooth morphogenesis and cytodifferentiation. Microfluidics systems allow co-cultures of neurons and different cell types in their appropriate culture media. We have recently demonstrated that trigeminal ganglia (TG) and teeth are able to survive for a long period of time when co-cultured in microfluidic devices, and that they maintain in these conditions the same innervation pattern that they show in vivo. On this basis, we describe how to isolate and co-culture developing trigeminal ganglia and tooth germs in a microfluidic co-culture system.This protocol describes a simple and flexible way to co-culture ganglia/nerves and target tissues and to study the roles of specific molecules on such interactions in a controlled and isolated environment. FAU - Pagella, Pierfrancesco AU - Pagella P AD - Institute of Oral Biology, Unit of Orofacial Development and Regeneration, University of Zurich. FAU - Miran, Shayee AU - Miran S AD - Institute of Oral Biology, Unit of Orofacial Development and Regeneration, University of Zurich. FAU - Mitsiadis, Tim AU - Mitsiadis T AD - Institute of Oral Biology, Unit of Orofacial Development and Regeneration, University of Zurich; thimios.mitsiadis@zzm.uzh.ch. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Video-Audio Media DEP - 20150814 PL - United States TA - J Vis Exp JT - Journal of visualized experiments : JoVE JID - 101313252 SB - IM MH - Animals MH - Coculture Techniques/instrumentation/*methods MH - Female MH - Mice MH - Microfluidic Analytical Techniques/instrumentation/*methods MH - Pregnancy MH - Tooth Germ/*cytology/*innervation MH - Trigeminal Ganglion/*cytology PMC - PMC4692442 EDAT- 2015/09/04 06:00 MHDA- 2015/10/29 06:00 PMCR- 2017/08/14 CRDT- 2015/09/02 06:00 PHST- 2015/09/02 06:00 [entrez] PHST- 2015/09/04 06:00 [pubmed] PHST- 2015/10/29 06:00 [medline] PHST- 2017/08/14 00:00 [pmc-release] AID - 53114 [pii] AID - 10.3791/53114 [doi] PST - epublish SO - J Vis Exp. 2015 Aug 14;(102):e53114. doi: 10.3791/53114.