E-GEOD-34002 - Identification of differential expressed genes between P-RPCs, ESC-RPCs and Dkk1 treated ESC-RPCs through genome-wide transcript profiling

Released on 16 April 2013, last updated on 2 June 2014
Mus musculus
Samples (9)
Array (1)
Protocols (7)
Tumor formation constitutes a major obstacle to the clinical application of embryonic stem cells (ESCs). As P-RPCs could successfully integrate into host eyes without development of teratomas or NOG, we sought to identify differentially expressed genes between P-RPCs and ESC-RPCs through genome-wide transcript profiling. Inhibition of Wnt signaling by DKK1 promotes the commitment of ESC-RPCs to more mature retinal cells and reduces the occurrence of NOG to 3%. DKK1-treated ESC-RPCs efficiently integrate to the host retina, form synaptic connections and restore visual function. Here, we report that further differentiation of ESC-derived neural progenitors into retinal progenitor cells (ESC-RPCs) completely eliminates teratomas in ocular transplantation. However, tumor-like neural overgrowth (NOG) occurs in 61% of transplanted eyes. ESC-RPCs were divided into two groups according to the differentiation stages for RNA extraction and hybridization on Affymetrix microarrays. Normal control ESC-RPCs (N) were represented the homogeneous populations of early stage expression profiles of immature ESC-RPCs. DKK1 treated ESC-RPCs (D) were represented the homogeneous populations of late stage expression profiles of further differetiated mature ESC-RPCs. To sought the pathways involved in the proliferation and oncogenesis of ESC-RPCs, the newborn C57 mice reitinal progenitor cells (R) were applied as negative control. Each group above had three independent biological repeats.
Experiment type
transcription profiling by array 
WNT signaling determines tumorigenicity and function of ESC-derived retinal progenitors. Cui L, Guan Y, Qu Z, Zhang J, Liao B, Ma B, Qian J, Li D, Li W, Xu GT, Jin Y. , Europe PMC 23524971
Investigation descriptionE-GEOD-34002.idf.txt
Sample and data relationshipE-GEOD-34002.sdrf.txt
Raw data (1)E-GEOD-34002.raw.1.zip
Processed data (1)E-GEOD-34002.processed.1.zip
Array designA-AFFY-45.adf.txt