Fig. 3. Immunohistochemical identification of interleukin (IL)-4-positive, proMBP1-positive cells in the Kimura disease parotid gland by the double-immunofluorescence method. Images staining positive for IL-4 (red) (A), proMBP1 (green) (B), and their merger (C). The yellow signal (arrow) in panel C indicates colocalization of IL-4 and proMBP1. proMBP1, pro-form of major basic protein 1.
