In addition to fibrinogen-related proteins, complement components C3 and C4, fumarate hydratase (FH), tissue-type plasminogen activator (tPA), alpha-1-antitrypsin (A1AT), and clusterin were more abundant in WJ-MSC exosomes than in AD-MSC exosomes (red boxes, Figure 3B). The gene discussed is SERPINA1; the disease is Alzheimer disease.