Immunohistochemical staining for TfR2.

Cells were incubated with either 50-fold diluted normal rabbit serum (panels A and E) or 50-fold diluted rabbit anti-TfR2 antiserum (panels B-D, F-G) followed by immunohistochemical staining. Magnifications: panels A-F, × 1000; panel G, × 300. (A-B) TfR2-α stably transfected CHO-TRVb cells. (C) Neomycin-resistant control CHO-TRVb cells. (D) TfR1 stably transfected CHO-TRVb cells. (E-F) Normal human BM cells. (G) Representatives of TfR2-positive megakaryocytes.