Static and dynamic 3D culture of neural precursor cells on macroporous cryogel microcarriers

大孔冰凝胶微载体上神经前体细胞的静态和动态三维培养

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作者:Ben Newland, Fanny Ehret, Franziska Hoppe, Dimitri Eigel, Dagmar Pette, Heike Newland, Petra B Welzel, Gerd Kempermann, Carsten Werner

Abstract

Neural precursor cells have been much studied to further our understanding of the far-reaching and controversial question of adult neurogenesis. Currently, differentiation of primary neural precursor cells from the mouse dentate gyrus via 2-dimentional in vitro culture yields low numbers of neurons, a major hindrance to the field of study. 3-dimentional "neurosphere" culture allows better 3D cell-cell contact, but control over cell differentiation is poor because nutrition and oxygen restrictions at the core of the sphere causes spontaneous differentiation, predominantly to glial cells, not neurons. Our group has developed macroporous scaffolds, which overcome the above-mentioned problems, allowing long-term culture of neural stem cells, which can be differentiated into a much higher yield of neurons. Herein we describe a method for culturing neural precursor cells on RGD peptide functionalized-heparin containing cryogel scaffolds, either in standard non-adherent well-plates (static culture) or in spinner flasks (dynamic culture). This method includes: •The synthesis and characterization of heparin based microcarriers.•A "static" 3D culture method for that does not require spinner flask equipment.•"Dynamic" culture in which cell loaded microcarriers are transferred to a spinner flask.

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