Lewis Y tetrasaccharide (Lewis Y, Le^Y) is a tetrasaccharide derivative form of Lewis X trisaccharide (HY-N10534). Lewis Y tetrasaccharide is an antigen associated with malignant ovarian carcinomas metastasis and poor prognosis.

Lewis Y tetrasaccharide activates FAK signaling pathway and upregulating Bcl-2/Bcl-XL expression to enhance cell adhesion mediated drug resistance (CAM-DR) in ovarian cancer cells.
Lewis Y tetrasaccharide results in integrin α5β1 level increase in ovarian carcinoma-derived cells exhibiting enhanced expression of Le^Y (RMG-1-hFUT).
Lewis Y tetrasaccharide enhances the adhesive and spreading potentials mediated by the integrin-fibronectin interaction of ovarian carcinoma RMG-1 cells.
Anti-Le^Y antibodies (10 μg/mL; 37 ℃; 24 h) significantly inhibits the proliferation and adhesion ability of RMG-1-hFUT cells cultured in vivo.

西域 has not independently confirmed the accuracy of these methods. They are for reference only.

• . Yan LM, et al. Enhancement of the adhesive and spreading potentials of ovarian carcinoma RMG-1 cells due to increased expression of integrin alpha5beta1 with the Lewis Y-structure on transfection of the alpha1,2-fucosyltransferase gene. Biochimie. 2010 Jul;92(7):852-7.   [Content Brief]

  . Yan L, et al. Lewis y enhances CAM-DR in ovarian cancer cells by activating the FAK signaling pathway and upregulating Bcl-2/Bcl-XL expression. Biochimie. 2015 Jun;113:17-25.   [Content Brief]