PMAIP1 and neoplasm: For Gaussian distribution, the MFI of the protein of interest within the epithelial compartment (including benign and tumor values) was increased by 2.5-fold for PUMA (from MFI = 848 to MFI = 2078) and 3.5-fold for NOXA (from MFI = 141 to MFI = 492) (Figure 2A,B, respectively).