Growth of osteoblast-like cells on porous hydroxyapatite ceramics: an in vitro study.
Blocks of two porous synthetic hydroxyapatites (HA) with porosity fraction of 30-40 and 50-60 vol%, respectively and a coralline derived porous HA were evaluated in vitro in presence of the osteogenic line MC3T3-E1 and of L929 fibroblasts. The two tested biomaterials did not affect cellular proliferation (MTT test), but the contact inhibited alkaline phosphatase activity. Porous aggregates resulted perfectly biocompatible in the tests performed, since observations performed by light microscopy did not show any cell morphological change, osteoblast presented a stellar shape and typical pseudopodes. SEM observations showed intercellular matrix containing fibers on HA-based porous aggregates.
Dental Materials, Department of Experimental Medicine and Biochemical Sciences, University of Rome Tor Vergata, Via di Tor Vergata 135 00133 Rome, Italy. cerroni@uniroma2.it
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D016475:3T3 Cells / Q000166:cytology / Q000187:drug effects / Q000648:ultrastructure; D000818:Animals; D001672:Biocompatible Materials / Q000145:classification / Q000494:pharmacology; D002460:Cell Line; D002516:Ceramics / Q000145:classification*; D017886:Durapatite / Q000145:classification*; D005347:Fibroblasts / Q000166:cytology* / Q000187:drug effects / Q000648:ultrastructure; D008422:Materials Testing; D051379:Mice; D010006:Osteoblasts / Q000166:cytology* / Q000187:drug effects / Q000648:ultrastructure; D016062:Porosity; D012680:Sensitivity and Specificity
D001672:Biocompatible Materials; D017886:Durapatite