title: Feline polymorphonuclear leukocytes respond chemotactically to leukotriene B4 and activated serum but not to F-Met-Leu-Phe.
abstract: The chemotactic response of feline polymorphonuclear leukocytes (PMNs) to three types of chemoattractants was studied. Feline PMNs responded to leukotriene B4 as well as to agarose-activated autologous and homologous serum. However, no response was obtained to N-formylmethionylleucylphenylalanine (FMLP), and four similar peptides that activate the FMLP receptor (N-formylnorleucylleucylphenylalanine, N-formylmethionylphenylalanine, methionylleucylphenylalanine, and pepstatin). Thus, feline PMNs are similar to equine, porcine, bovine and canine PMNs which also do not respond chemotactically to these peptides.
mesh_terms: D000818:Animals; D002415:Cats; D002634:Chemotaxis, Leukocyte / Q000187:drug effects*; D003470:Culture Media; D006801:Humans; D007700:Kinetics; D007975:Leukotriene B4 / Q000494:pharmacology*; D008855:Microscopy, Electron, Scanning; D009240:N-Formylmethionine Leucyl-Phenylalanine / Q000494:pharmacology*; D009504:Neutrophils / Q000187:drug effects / Q000502:physiology* / Q000648:ultrastructure; D013045:Species Specificity
chemical_list: D003470:Culture Media; D007975:Leukotriene B4; D009240:N-Formylmethionine Leucyl-Phenylalanine