SLC6A14 and neoplasm: Literature evidence indicates that this transporter, codified by ATB0,+/SLC6A14, localizes in murine colon, lung and eye,18 while, in humans its expression is detected at low levels in normal cells, but significantly induced under pathological conditions, such as tumours and inflammation.19 In our hands, system B0,+ is not operative in Caco‐2 human intestinal cells and in primary renal cells, a finding congruent with lack of expression of SLC6A14 in these models, as well as in MatTek's 3D tissue model of human small intestine (EpiIntestinal) (data not shown).