Time-Course Gene Expression Profiling Reveals a Novel Role of Non-Canonical WNT Signaling During Neural Induction.

ABSTRACT: The process of neuroepithelial differentiation from human pluripotent stem cells (PSCs) resembles in vivo neuroectoderm induction in the temporal course, morphogenesis, and biochemical changes. This in vitro model is therefore well-suited to reveal previously unknown molecular mechanisms underlying neural induction in humans. By transcriptome analysis of cells along PSC differentiation to early neuroepithelia at day 6 and definitive neuroepithelia at day 10, we found downregulation of genes that are associated with TGF-β and canonical WNT/β-CATENIN signaling, confirming the roles of classical signaling in human neural induction. Interestingly, WNT/Ca(2+) signaling was upregulated. Pharmacological inhibition of the downstream effector of WNT/Ca(2+) pathway, Ca(2+)/calmodulin-dependent prote

SUBMITTER: Huang CT 

PROVIDER: S-EPMC5013468 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature