Figure 2.

Known interactions between proteins identified in multipotent adult progenitor cell secretome. Proteins identified that directly interact with each other are indicated by solid black lines. Substrate/catalyst pairs are highlighted with substrates indicated by arrowheads. Indirect interactions are represented by dotted lines. Abbreviations: GAPDH, glyceraldehyde-3-phosphate dehydrogenase; LTBP, latent transforming growth factor binding protein; MMP, matrix metalloproteinase; PAI, plasminogen activator inhibitor; SPARC, secreted protein acidic and rich in cysteine; VEGFA, vascular endothelial growth factor A.