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A novel method for 3D culture of central nervous system neurons.
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Tissue Eng Part C Methods 2013 Oct;
Authors: Till Benjamin Puschmann, Yolanda de Pablo, Carl Zandén, Johan Liu, Milos Pekny
University of Gothenburg,Institute of Neuroscience and Physiology, Medicinaregatan 9A, Gothenburg, Sweden, 41390, +46 317863565 ; firstname.lastname@example.org.
Neuronal signal transduction and communication in vivo is based on highly complex and dynamic networks among neurons expanding in a 3 dimensional (3D) fashion. Studies of cell-cell communication, synaptogenesis and neural network plasticity constitute major research areas for understanding the involvement of neurons in neurodegenerative diseases such as Huntington's, Alzheimer's and Parkinson's disease and in regenerative neural plasticity responses in situations such as neurotrauma or stroke. Various cell culture systems constitute important experimental platforms to study neuronal functions in health and disease. A major downside of the existing cell culture systems is that the alienating planar cell environment leads to aberrant cell-cell contacts and network formation and increased reactivity of cell culture contaminating glial cells. To mimic a suitable 3D environment for the growth and investigation of neuronal networks in vitro has posed an insurmountable challenge. Here we report the development of a novel electrospun, polyurethane nanofiber based 3D cell culture system for the in vitro support of neuronal networks, in which neurons can grow freely in all directions and form network structures more complex than any culture system has so far been able to support. In this 3D system, neurons extend processes from their cell bodies as a function of the nanofiber diameter. The nanofiber scaffold also minimizes the reactive state of contaminating glial cells.
PMID: 24102451 [PubMed - as supplied by publisher]