However , BRL49653 , a PPARgamma ligand , failed to induce MCP-1 secretion either alone or to modify the expression level induced by RA .
however , brl49653 , a ppargamma ligand , failed to induce mcp-1 secretion either alone or to modify the expression level induced by ra .
O O B-other_organic_compound O O B-protein_molecule O O O O O B-protein_molecule O O O O O O O O O O O B-other_organic_compound O