- Jung M, Peterson H, Chavez L, Kahlem P, Lehrach H, Vilo J, et al. A data integration approach to mapping OCT4 gene regulatory networks operative in embryonic stem cells and embryonal carcinoma cells. PLoS ONE. 2010;5:e10709 pubmed publisher..In the current era of systems biology driven research, we envisage that our integrated embryonic stem cell database will prove beneficial to the booming field of ES, iPS and cancer research. ..