Abstract：
:We have previously shown that Elasmobranchs-characterized by a partially calcified cartilaginous endoskeleton-presented a bony vertebral arch containing osteoblasts, osteocytes and resorbing cells. The aim of this study is to test the ability of Elasmobranchs to resorb bone tissue. The subcutaneous implantation in dogfish (Scyliorhinus canicula) of devitalized mineral-containing bone particles, obtained from a bony fish (the eel, Anguilla anguilla) resulted, after 21 2 months, in the formation of mononucleated as well as multinucleated cells around and between the bone fragments. By light microscopy, the multinucleated giant cells presented the general aspect of osteoclastic cells whereas, by transmission electron microscopy they never showed ruffled borders which are considered as the typical features of osteoclasts. Except for this character, the mononucleated and multinucleated cells exhibited the typical ultrastructural aspects leading us to say that these cells are involved in the resorption of the bone fragments. This study shows that Elasmobranchs are able to resorb implanted bone.
journal_name
Tissue Celljournal_title
Tissue & cellauthors
Peignoux-Deville J,Bordat C,Vidal Bdoi
10.1016/0040-8166(89)90043-8subject
Has Abstractpub_date
1989-01-01 00:00:00pages
925-33issue
6eissn
0040-8166issn
1532-3072pii
0040-8166(89)90043-8journal_volume
21pub_type
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