To test whether anti-Gal1-Fe3O4 nanoparticles (Cy5.5-labelled) could specifically target pancreatic tumor cells (BxPC-3 cells), we incubated the nanoparticles with BxPC-3 cells overexpressing Gal1 on the surface; MCF-7 cells with low expression of Gal1 was used as a control. This evidence concerns the gene LGALS1 and pancreatic neoplasm.