title: Inhibitory effect of zinc compounds on osteoclast-like cell formation in mouse marrow cultures.
abstract: The effect of zinc compounds on osteoclast-like cell formation in mouse marrow culture in vitro was investigated. The bone marrow cells were cultured for 7 days in alpha-minimal essential medium containing a well-known bone resorbing agent [1,25-dihydroxyvitamin D3, parathyroid hormone (1-34), interleukin-1 alpha or prostaglandin E2]. Osteoclast-like cell formation was estimated by staining for tartrate-resistant acid phosphatase (TRACP), a marker enzyme of osteoclasts. The presence of 1,25-dihydroxyvitamin D3 (10(-8) M), parathyroid hormone (10(-8) M), interleukin-1 alpha (50 U/mL) or prostaglandin E2 (10(-6) M) induced a remarkable increase in osteoclast-like multinucleated cells. These increases were inhibited by the presence of zinc sulfate or zinc-chelating dipeptide (beta-alanyl-L-histidinato zinc; AHZ) in the concentration range of 10(-8) to 10(-5) M. The inhibitory effect of AHZ (10(-8) and 10(-7) M) was more intensive than that of zinc sulfate. Furthermore, the presence of Ni2+, Cu2+, Mn2+ or Co2+ (10(-7) and 10(-6) M) did not have an effect on parathyroid hormone (10(-8) M)-induced osteoclast-like cell formation. The present study clearly demonstrates that zinc compounds have a potent inhibitory effect on osteoclast-like cell formation in mouse marrow culture.
authors.affiliation: Laboratory of Metabolism and Endocrinology, Graduate School of Nutritional Sciences, University of Shizuoka, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Kishi
authors.forename: M
authors.initials: M
authors.lastname: Yamaguchi
mesh_terms: D000135:Acid Phosphatase / Q000032:analysis; D000818:Animals; D001853:Bone Marrow / Q000187:drug effects*; D002117:Calcitriol / Q000494:pharmacology; D002478:Cells, Cultured; D007527:Isoenzymes / Q000032:analysis; D008297:Male; D051379:Mice; D010010:Osteoclasts / Q000187:drug effects*; D010281:Parathyroid Hormone / Q000494:pharmacology; D013431:Sulfates / Q000494:pharmacology; D000071681:Tartrate-Resistant Acid Phosphatase; D014131:Trace Elements / Q000494:pharmacology; D015032:Zinc / Q000494:pharmacology*; D017967:Zinc Compounds / Q000494:pharmacology; D019287:Zinc Sulfate
chemical_list: D007527:Isoenzymes; D010281:Parathyroid Hormone; D013431:Sulfates; D014131:Trace Elements; D017967:Zinc Compounds; D019287:Zinc Sulfate; D000135:Acid Phosphatase; D000071681:Tartrate-Resistant Acid Phosphatase; D002117:Calcitriol; D015032:Zinc