FIG. 2.

Assays with species-specific microarrays. Total RNA was isolated from individual cultures of hMSCs and rNSCs as well as cocultures. All samples were hybridized to both rat and human microarray chips. (A) Venn diagram of 69 nonredundant rat genes upregulated with coculture. (B) Venn diagram of 72 nonredundant human genes upregulated with coculture. In both Venn diagrams, lower 2 circles are genes that met the first and second filtering criteria (see Materials and Methods).