{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,12]],"date-time":"2025-09-12T17:50:22Z","timestamp":1757699422524},"reference-count":22,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2005,2,3]],"date-time":"2005-02-03T00:00:00Z","timestamp":1107388800000},"content-version":"vor","delay-in-days":5300,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am. J. Anat."],"published-print":{"date-parts":[[1990,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>We tested the ability of normal osteoclast progenitors found in neonatal liver and bone marrow to develop into functional osteoclasts when co\u2010cultured with metatarsals from newborn osteopetrotic rabbits; the latter inherit an osteoclast incompetence resistant to cure by bone marrow transplantation. This system, developed by Burger and colleagous, has been shown to produce normal, functional osteoclasts when used with normal metatarsals. Our study tested the competence of the mutant skeletal microenvironment for differentiation of normal osteoclasts. Mutant and normal metatarsals were cultured alone or with normal liver, spleen, or bone marrow for up to 14 days. All normal cultures possessed a marrow cavity and contained numerous osteoclasts with cytochemical characteristics (tartrateresistant acid phosphatase) of active cells. Mutant metatarsals co\u2010cultured with normal spleen, liver, or bone marrow failed to develop a marrow cavity (evidence in itself of reduced bone resorption) and had osteoclasts reduced in both numbers and cytochemically detectable activity. Similar metatarsal cultures of an osteopetrotic rat mutation (incisors\u2013absent) curable by bone\u2010marrow transplantation exhibited marrow cavity development in mutant metatarsals co\u2010cultured with normal spleen. These data suggest that the skeletal environment of osteopetrotic rabbits contains an inhibitor or lacks a promoter of osteoclast differentiation and function.<\/jats:p>","DOI":"10.1002\/aja.1001880412","type":"journal-article","created":{"date-parts":[[2005,2,27]],"date-time":"2005-02-27T02:25:47Z","timestamp":1109471147000},"page":"438-444","source":"Crossref","is-referenced-by-count":9,"title":["Defective osteoclast differentiation and function in the osteopetrotic (<i>os<\/i>) rabbit"],"prefix":"10.1002","volume":"188","author":[{"given":"Sharon","family":"Lenhard","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Steven N.","family":"Popoff","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"suffix":"Jr.","given":"Sandy C.","family":"Marks","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2005,2,3]]},"reference":[{"key":"e_1_2_1_2_1","first-page":"363","article-title":"Kinetic and cytochemical identification of osteoclast precursors and their differentiation into multinucleated osteoclasts","volume":"122","author":"Baron R.","year":"1986","journal-title":"Am. 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