Hallux RigidusChemotaxisHalluxMetatarsophalangeal JointChemotaxis, LeukocyteChemotactic FactorsNeutrophilsDictyosteliumN-Formylmethionine Leucyl-PhenylalanineCell MovementSignal TransductionChemokine CXCL12Bacterial ProteinsChemokines, CXCReceptors, Formyl PeptideComplement C5aReceptors, ChemokineReceptors, Interleukin-8BFlagellaCell Migration InhibitionEscherichia coliReceptors, Interleukin-8ABacterial Physiological PhenomenaMembrane ProteinsMonocytesCells, CulturedInterleukin-8Receptors, CXCR4Chemoreceptor CellsPseudopodiaReceptors, Amino AcidChemokines, CCLeukotriene B4ChemokinesActinsChemokine CCL2Cell AdhesionCell PolarityMethylationN-FormylmethionineReceptors, CCR2Chemokine CCL19Phosphatidylinositol 3-KinasesMutationModels, BiologicalMolecular Sequence DataReceptors, CCR1Cell Migration Assays, Leukocyterac GTP-Binding ProteinsChemokine CCL5PhosphorylationAmino Acid SequenceCyclic AMPNeutrophil ActivationComplement C5PhagocytosisEosinophilsReceptors, CXCR3Cell LineReceptors, LipoxinHL-60 CellsChemokine CCL7Azospirillum brasilenseCalciumSpirochaetaReceptors, Cell SurfaceChemokine CCL21Dose-Response Relationship, DrugMacrophage Inflammatory ProteinsZymosanPertussis ToxinSalmonella typhimuriumReceptors, CCR3Receptors, CCR7Microfluidic Analytical TechniquesLeukocytesMacrophagesMonocyte Chemoattractant ProteinsPhosphatidylinositol PhosphatesMicroscopy, Video