MMP10 and chronic obstructive pulmonary disease: For patient proteome data, 790 of the 1310 proteins had significantly higher expression levels in stable COPD ex-smokers compared to current smokers, including multiple pro-inflammatory markers such as interleukin-36, fibrinogen and matrix metallopeptidase 10 (FC ≥ 1.5, FDR P ≤ 0.05, Mann-Whitney-Wilcoxon test, Additional file 2).