Fig. 6.
Immunohistologic staining of OPG in a BM biopsy of a myeloma patient.
(A) BM biopsy stained with anti–syndecan-1, (B) anti-OPG, and (C) negative control antibody CK-7 as described in “Patients, materials, and methods.” The staining for OPG was abolished by preincubation of anti-OPG with recombinant human OPG (not shown). Original magnification × 200.