ZIP1, also known as ZIRTL (zinc-iron regulated transporter-like), is the first mammalian member of a family of divalent ion transporters. Zinc is an essential ion for cells and plays significant roles in the growth, development, and differentiation. ZIP1 expression is markedly downregulated in a number of cancerous tissues and is thought to function as a tumor suppressor gene in prostate cancer. More recent studies have shown that overexpression of ZIP1 and concomitant increased levels of intracellular zinc in PC-3 cells cause a significant inhibition of NF-kappa-B, leading to down-regulation of the antiapoptotic protein Bcl-2, Bcl-XL, and the apoptosis inhibitor XIAP, reducing the malignant potential of prostate cancer cells in vitro and in vivo.
mZIP1; solute carrier family 39 (zinc transporter), member 1; solute carrier family 39 (zinc transporter), member 3; Solute carrier family 39 member 1; Zinc transporter ZIP1; Zinc-iron-regulated transporter-like; ZIP-1; Zrt- and Irt-like protein 1; Zrt/Irt-like protein 1