Research Article

Towards Secretome Standardization: Identifying Key Ingredients of MSC-Derived Therapeutic Cocktail

Figure 3

Clustering and correlation analysis of the 104 factors quantified in all ASC-CM samples. For the analyses, the levels of each analyte (pg/ml) were normalized on donor cell number and expressed as pg/106 ASCs. (a) PCA plot and (b) heat map visualization of the protein levels in ASC-CM1, ASC-CM2, and ASC-CM3. (c, d) Correlation analysis of all the 104 factors (c) and of the 26 molecules (d) having a coefficient of variation below 33% (). For each graph, the equation of the regression lines is reported, together with Spearman values.
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