Tumor-related expression of alpha1,2fucosylated antigens on colorectal carcinoma cells and its suppression by cell-mediated priming using sugar acceptors for alpha1,2fucosyltransferase.
The accumulation of alpha1,2fucosylated antigens, such as Y (Fucalpha1,2Galbeta1,4 [Fucalpha1,3]GlcNAcbeta), Le(b) (Fucalpha1,2Galbeta1,3-[Fucalpha1,4]GlcNAcbeta), and H type 2 (Fucalpha1,2 Galbeta1,4GlcNAcbeta) occurs specifically within human colorectal tumor tissues and can be detected by an antifucosylated antigen antibody, such as the YB-2 antibody. In the present investigation, we found that the expression of these antigens bearing an alpha1,2-linked fucose correlated with the resistance of the tumor cells to anticancer treatments. Addition of an exogenous sugar acceptor for alpha1,2fucosyltransferase to the cell medium resulted in suppression of alpha1,2fucosylated antigen expression on the tumor cells and increased susceptibility to anticancer treatment. The increased susceptibility may be attributed to cancer cell-mediated priming by sugar acceptors for alpha1,2fucosyltransferase added to the medium.
Yazawa
Shin
S
Japan Immunoresearch Laboratories, 351-1 Nishiyokote-cho, Takasaki 370-0021, Japan. syazawa@po.sphere.ne.jp
Nishimura
Toyo
T
Ide
Munenori
M
Asao
Takayuki
T
Okamura
Akihiko
A
Tanaka
Susumu
S
Takai
Izumi
I
Yagihashi
Yuko
Y
Saniabadi
Abby R
AR
Kochibe
Naohisa
N
D000951:Antigens, Neoplasm / Q000276:immunology*; D000970:Antineoplastic Agents / Q000627:therapeutic use; D050260:Carbohydrate Metabolism; D002455:Cell Division; D015179:Colorectal Neoplasms / Q000188:drug therapy / Q000276:immunology* / Q000473:pathology; D005643:Fucose / Q000378:metabolism*; D005647:Fucosyltransferases / Q000378:metabolism*; D006801:Humans; D014407:Tumor Cells, Cultured
D000951:Antigens, Neoplasm; D000970:Antineoplastic Agents; D005643:Fucose; D005647:Fucosyltransferases