This chapter contains sections titled:

• Introduction

• Origin of human basophils

• Morphologic and ultrastructural characteristics of human basophils

• Mediators of human basophils

• Surface markers of human basophils

• Evidence of basophil involvement in bronchial asthma

• Basophil recruitment to allergic airways

• Superallergens in allergic disorders

• Role of basophils in allergic angiogenesis

• Pharmacologic modulation of human basophils

• Conclusions and implications

• Acknowledgments

• References