Journal: PLoS ONE
Article Title: Very Small Embryonic-Like Stem Cells Purified from Umbilical Cord Blood Lack Stem Cell Characteristics
doi: 10.1371/journal.pone.0034899
Figure Lengend Snippet: A+B) A genome-wide unbiased principal component analysis including 12621 genes classifies VSEL cells as remote to both pluripotent and adult stem cell populations as well as mature blood cell lineages. C) Hierarchical clustering represented by an un-rooted tree diagram confirms the results of the PCA. D) A heatmap comparison of 371 selected pluripotency associated genes shows substantial differences between VSEL cells and pluripotent stem cells, but a high degree of similarity between ES and iPS cells. E) Normalized transcription level of the core pluripotency genes Oct4 (POU5F1), Nanog and Sox2 as part of D. Note that the Affymetrix microarray probes for POU5F1 do not comply with up to date quality standards as they are known to detect pseudogenes.
Article Snippet: RNA extraction, labelling, hybridisation and microarray analysis was conducted by AROS Applied Biotechnology AS (Aarhus, Denmark) using Rneasy kit (Qiagen, Hilden, Germany), NuGen Pico labelling kit (NuGen, San Carlos, USA) and Affymetrix GeneTitan Human Genome U219 microarray (Affymetrix, Santa Clara, USA) according to in-house protocols.
Techniques: Genome Wide, Microarray