Disclosed are peptides having SEQ ID NOs: 1 to 24 that induce superoxidegeneration by human monocytes or neutrophils； that induce an intracellularcalcium increase by human peripheral blood monocytes or neutrophils； binds toformyl peptide receptor or formyl peptide receptor-like 1； that inducechemotactic migration of human monocytes or neutrophils in vitro； that inducedegranulation in formyl peptide receptor expressing cells or formyl peptidereceptor-like 1 expressing cells； that stimulate extracellular signalregulated protein kinase phosphorylation via activation of formyl peptidereceptor or formyl peptide receptor-like 1； or that stimulate Aktphosphorylation via activation of formyl peptide receptor or formyl peptidereceptor-like 1.
