PTPRF and triple-negative breast carcinoma: Whereas (ER-) cell lines MDA-MB 453, MDA-MB 231 and MDA-MB 468 were used as representatives of the 3 main molecular subtypes of triple-negative breast cancers: Luminal Androgen Receptor (LAR), Mesenchymal-like and Basal-like subtypes respectively, as elegantly characterized by Lehman et al. [40].