CCL17 and myocardial infarction: For example, the levels of protooncogene tyrosine-protein kinase (SRC), C-C motif chemokine ligand 17 (CCL17), and chymotrypsin C (CTRC) are all significantly decreased in extracellular vesicles (EVs) lysates from MI patients but remain unaltered in the normal control plasma samples (144).