TGF-β activity in acid bone lysate adsorbs to titanium surface
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Strauss Avendaño, Franz
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TGF-β activity in acid bone lysate adsorbs to titanium surface
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Objectives: Osteoblasts lay down new bone on implant surfaces. The underlying cellular mechanism and the spatio-temporal mode of action, however, remain unclear. It can be proposed that growth factors released upon acidification by osteoclasts adsorb to the implant surface and control the early stages of osseointegration. Methods: To simulate bone lysis by osteoclasts, titanium discs were exposed to acid bone lysate (ABL) followed by vigorous washing and seeding of oral fibroblasts. The expression of TGF-β target genes interleukin 11 (IL11) and NADPH oxidase 4 (NOX4) was evaluated by reverse transcriptase polymerase chain reaction and IL11 ELISA. TGF-β signaling activation was assessed via Smad2/3 immunofluorescence. The impact of ABL on osteogenic differentiation was determined with murine ST2 mesenchymal stromal cells. Results: We report here that ABL-conditioned titanium discs, i
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URI: https://repositorio.uchile.cl/handle/2250/171533
DOI: 10.1111/cid.12734
ISSN: 17088208
15230899
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Clinical Implant Dentistry and Related Research, Volumen 21, Issue 2, 2019, Pages 336-343
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