In addition, a study by Blanco-Prieto et al. researched serum MMPs (MMP-1, MMP-2, MMP-7, MMP-9, MMP-10) and TIMP-1 levels by multiplexed immunoassays in a study cohort of 19 NSCLC cases and 19 healthy controls. Here, MMP9 is linked to non-small cell lung carcinoma.