Immunocytochemical stained cytospins for JunB.

(A) In cells from healthy individuals, most cells are positively stained (brown) for JunB antibody. (B) In cells from CML patients, few cells are positively stained and most cells are negatively stained for JunB antibody. JunB antibody staining was detected using peroxidase with DAB substrate. Cells were counterstained with nematoxylin. Original magnifications × 100, × 1000 for insets.