title: Monoclonal antibody C3.1 is a platelet derived growth factor (PDGF) antagonist.
abstract: A monoclonal antibody C3.1 raised against NR6 cells and partially purified PDGF receptor blocked PDGF stimulated [3H] thymidine incorporation in Swiss mouse 3T3 cells and immunoprecipitated a 180 kDa phosphoprotein from NR6 cells. The phosphoprotein bound to a C3.1 sepharose 4B affinity matrix and could be specifically eluted with PDGF but not by EGF or basic FGF. These preliminary results suggests that the ability of C3.1 to inhibit PDGF stimulated mitogenesis may be due to its direct or allosteric interaction at the PDGF receptor binding site.
authors.forename: R S
authors.initials: RS
authors.lastname: Kawahara
authors.forename: B B
authors.initials: BB
authors.lastname: Kennedy
authors.forename: T F
authors.initials: TF
authors.lastname: Deuel
mesh_terms: D000818:Animals; D000911:Antibodies, Monoclonal; D002460:Cell Line; D004591:Electrophoresis, Polyacrylamide Gel; D007163:Immunosorbent Techniques; D008565:Membrane Proteins / Q000378:metabolism; D051379:Mice; D008807:Mice, Inbred BALB C; D008938:Mitosis; D010750:Phosphoproteins / Q000378:metabolism; D010766:Phosphorylation; D010982:Platelet-Derived Growth Factor / Q000037:antagonists & inhibitors* / Q000494:pharmacology; D011956:Receptors, Cell Surface / Q000276:immunology*; D017479:Receptors, Platelet-Derived Growth Factor
chemical_list: D000911:Antibodies, Monoclonal; D008565:Membrane Proteins; D010750:Phosphoproteins; D010982:Platelet-Derived Growth Factor; D011956:Receptors, Cell Surface; D017479:Receptors, Platelet-Derived Growth Factor