Mast CellsConnective Tissue CellsConnective Tissuep-Methoxy-N-methylphenethylamineChymasesCell DegranulationSerine EndopeptidasesConnective Tissue DiseasesFluocinonideConnective Tissue Growth FactorHistamine ReleaseTryptasesImmunoglobulin EAnaphylaxisMixed Connective Tissue DiseasePeritoneal CavityHistamineCytoplasmic GranulesProto-Oncogene Proteins c-kitSkinMice, Mutant StrainsCells, CulturedPassive Cutaneous AnaphylaxisMice, Inbred BALB CMice, Inbred C57BLReceptors, IgEImmediate-Early ProteinsCollagenMastocytosisIntercellular Signaling Peptides and ProteinsFibroblasts