SERPINC1 and lobular neoplasia: We have proposed Serpin peptidase inhibitor clade C (antithrombin) member 1 (SERPINC1) and alpha-1-acid glycoprotein (ORM1) as urine biomarkers for LN based on data obtained with the SWATH LC–MS liquid chromatography platform, a mass spectrometry-based proteomics analysis system (9).