LGALS9 and colon carcinoma: These effect of the HT-29 supernatants on NK-92 chemotaxis was significantly reversed by the addition of the galectin-9 siRNAs#378 and #690 groups (Fig 4F).Then by using another colon carcinoma cell line SW620, we consistently found that galectin-9 secreted from SW620 also had a chemotactic effect on NK-92 cells migration (S1 Fig).