Comparative proteome analysis of human DMECs, OECs, eEPCs, and monocytes. (A) Representative images of 2D gels showing protein spots distributed according to their molecular weight vertically; and isoelectric point horizontally from 4 to 7, right to left, respectively. (B) Comparative assessment by overlaying 2D gel images and matching spots. Common spots appear in green colour. Numbers in the bottom right corner show percentage of the progenitor cell proteome that matches the comparator cell type proteome. (C) Venn diagram indicating high overlap between DMECs and OECs proteomes. (D) Venn diagram showing quantification of similar spots between eEPCs and monocytes.