title: Differential effects between amphoterin and advanced glycation end products on colon cancer cells.
abstract: Amphoterin is 1 ligand of the receptor for advanced glycation end products (RAGE). We studied expression of amphoterin and RAGE mRNA and proteins in colorectal carcinoma cells and investigated their associations with the invasive activities of cells exposed to advanced glycation end products (AGE). Expression of RAGE and amphoterin was examined in 4 colorectal carcinoma cell lines. All cell lines expressed both RAGE and amphoterin. The effects of RAGE and amphoterin on cell growth (MTT assay), migration (wound healing assay) and invasion (in vitro invasion assay) were tested by treatment of cells with RAGE and amphoterin antisense S-oligodeoxynucleotides (ODNs). Cell growth, migration and invasion were inhibited significantly in Colo320 and WiDr carcinoma cells treated with RAGE and amphoterin antisense S-ODNs compared with sense-treated cells. Differences in ligand activity between amphoterin and AGE were examined with AGE-bovine serum albumin (BSA). AGE-BSA decreased cell growth, migration and invasion of amphoterin antisense S-ODN-treated Colo320 and WiDr cells compared with those of cells treated with Colo320 conditioned medium. Phosphorylation of extracellular signal-regulated kinase-1/2, Rac1 and AKT and production of matrix metalloproteinase 9 were increased to a greater degree by amphoterin than by AGE-BSA. In contrast, production of inducible nitric oxide synthase and nuclear factor-kappaBp65 were increased to a greater degree by AGE-BSA than by amphoterin.
authors.affiliation: Department of Oncological Pathology, Cancer Center, Nara Medical University, Kashihara, Japan. cooninh@zb4.so-net.ne.jp
authors.forename: Hiroki
authors.initials: H
authors.lastname: Kuniyasu
authors.forename: Yoshitomo
authors.initials: Y
authors.lastname: Chihara
authors.forename: Hideaki
authors.initials: H
authors.lastname: Kondo
mesh_terms: D000818:Animals; D002417:Cattle; D002455:Cell Division / Q000187:drug effects; D002465:Cell Movement / Q000187:drug effects; D015179:Colorectal Neoplasms / Q000378:metabolism* / Q000473:pathology; D017127:Glycation End Products, Advanced / Q000235:genetics* / Q000378:metabolism / Q000494:pharmacology; D024243:HMGB1 Protein / Q000235:genetics* / Q000378:metabolism / Q000494:pharmacology; D006801:Humans; D015151:Immunoblotting; D008024:Ligands; D020780:Matrix Metalloproteinase 9 / Q000378:metabolism; D019950:Mitogen-Activated Protein Kinase 1 / Q000378:metabolism; D048052:Mitogen-Activated Protein Kinase 3; D020928:Mitogen-Activated Protein Kinases / Q000378:metabolism; D016328:NF-kappa B / Q000378:metabolism; D009361:Neoplasm Invasiveness; D019001:Nitric Oxide Synthase / Q000378:metabolism; D052247:Nitric Oxide Synthase Type II; D020319:Oligodeoxyribonucleotides, Antisense / Q000494:pharmacology*; D010766:Phosphorylation; D016133:Polymerase Chain Reaction; D017346:Protein Serine-Threonine Kinases; D011518:Proto-Oncogene Proteins / Q000378:metabolism; D051057:Proto-Oncogene Proteins c-akt; D012333:RNA, Messenger / Q000378:metabolism; D000067759:Receptor for Advanced Glycation End Products; D011971:Receptors, Immunologic / Q000235:genetics* / Q000378:metabolism; D012710:Serum Albumin, Bovine / Q000235:genetics* / Q000378:metabolism / Q000494:pharmacology; D014407:Tumor Cells, Cultured; D014945:Wound Healing; D020830:rac1 GTP-Binding Protein / Q000378:metabolism
chemical_list: D017127:Glycation End Products, Advanced; D024243:HMGB1 Protein; D008024:Ligands; D016328:NF-kappa B; D020319:Oligodeoxyribonucleotides, Antisense; D011518:Proto-Oncogene Proteins; D012333:RNA, Messenger; D000067759:Receptor for Advanced Glycation End Products; D011971:Receptors, Immunologic; C081628:advanced glycation end products-bovine serum albumin; D012710:Serum Albumin, Bovine; C496319:NOS2 protein, human; D019001:Nitric Oxide Synthase; D052247:Nitric Oxide Synthase Type II; C494918:AKT1 protein, human; D017346:Protein Serine-Threonine Kinases; D051057:Proto-Oncogene Proteins c-akt; D019950:Mitogen-Activated Protein Kinase 1; D048052:Mitogen-Activated Protein Kinase 3; D020928:Mitogen-Activated Protein Kinases; D020780:Matrix Metalloproteinase 9; D020830:rac1 GTP-Binding Protein