Micropattened extracellular matrix protein chip for controlling the differentiation and migration of adult neural stem cells

초록

We applied soft-lithographic technique to design simple and reproducible laminin (LN)-polylysine cell culture substrates and investigated how adult neural stem cells (aNSCs) respond to the various spatial distribution of laminin, one of extracellular matrix (ECM) proteins enriched in the aNSC niche. We found that aNSC preferred to migrate and attach to LN stripes, and aNSC-derived neurons and astrocytes showed significant difference in motility towards LN stripes. By changing the spacing of LN stripes, we were able to control the alignment of neurons and astrocytes. Our findings would provide a deeper understanding in astrocyte-neuron interactions as well as ECM-stem cell interactions. © 15CBMS-0001.