PMID- 25945332 OWN - NLM STAT- MEDLINE DCOM- 20160201 LR - 20181113 IS - 2314-6141 (Electronic) IS - 2314-6133 (Print) VI - 2015 DP - 2015 TI - Regulation of Osteoblast Differentiation by Acid-Etched and/or Grit-Blasted Titanium Substrate Topography Is Enhanced by 1,25(OH)2D3 in a Sex-Dependent Manner. PG - 365014 LID - 10.1155/2015/365014 [doi] LID - 365014 AB - This study assessed contributions of micron-scale topography on clinically relevant titanium (Ti) to differentiation of osteoprogenitor cells and osteoblasts; the interaction of this effect with 1alpha,25-dihydroxyvitamin D3 (1alpha,25(OH)2D3); and if the effects are sex-dependent. Male and female rat bone marrow cells (BMCs) were cultured on acid-etched (A, R a = 0.87 mum), grit-blasted (GB, R a = 3.90 mum), or grit-blasted/acid-etched (SLA, R a = 3.22 mum) Ti. BMCs were sensitive to surface topography and underwent osteoblast differentiation. This was greatest on SLA; acid etching and grit blasting contributed additively. Primary osteoblasts were also sensitive to SLA, with less effect from individual structural components, demonstrated by enhanced local factor production. Sex-dependent responses of BMCs to topography varied with parameter whereas male and female osteoblasts responded similarly to surface treatment. 1alpha,25(OH)2D3 enhanced cell responses on all surfaces similarly. Effects were sex-dependent and male cells grown on a complex microstructured surface were much more sensitive than female cells. These results indicate that effects of the complex SLA topography are greater than acid etching or grit blasting alone on multipotent BMCs and committed osteoblasts and that individual parameters are sex-specific. The effect of 1alpha,25(OH)2D3 was sex dependent. The results also suggest that levels of 1alpha,25(OH)2D3 in the patient may be important in osseointegration. FAU - Olivares-Navarrete, Rene AU - Olivares-Navarrete R AD - Department of Biomedical Engineering, School of Engineering, Virginia Commonwealth University, 601 W. Main Street, Richmond, VA 23284, USA. FAU - Hyzy, Sharon L AU - Hyzy SL AD - Department of Biomedical Engineering, School of Engineering, Virginia Commonwealth University, 601 W. Main Street, Richmond, VA 23284, USA. FAU - Boyan, Barbara D AU - Boyan BD AD - Department of Biomedical Engineering, School of Engineering, Virginia Commonwealth University, 601 W. Main Street, Richmond, VA 23284, USA ; Department of Biomedical Engineering, Georgia Institute of Technology, 313 Ferst Drive NW, Atlanta, GA 30332, USA. FAU - Schwartz, Zvi AU - Schwartz Z AD - Department of Biomedical Engineering, School of Engineering, Virginia Commonwealth University, 601 W. Main Street, Richmond, VA 23284, USA ; Department of Periodontics, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229, USA. LA - eng GR - R01 AR052102/AR/NIAMS NIH HHS/United States GR - AR052102/AR/NIAMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20150406 PL - United States TA - Biomed Res Int JT - BioMed research international JID - 101600173 RN - 0 (dihydroxy-vitamin D3) RN - 1406-16-2 (Vitamin D) RN - D1JT611TNE (Titanium) SB - IM MH - Animals MH - Bone Marrow Cells/cytology/drug effects MH - Cell Differentiation/*drug effects MH - Female MH - Humans MH - Male MH - Osseointegration/drug effects MH - Osteoblasts/cytology/drug effects MH - Osteogenesis/*drug effects MH - Rats MH - Sex Characteristics MH - Titanium/*chemistry MH - Vitamin D/analogs & derivatives/pharmacology PMC - PMC4402479 EDAT- 2015/05/07 06:00 MHDA- 2016/02/02 06:00 PMCR- 2015/04/06 CRDT- 2015/05/07 06:00 PHST- 2014/07/25 00:00 [received] PHST- 2014/09/14 00:00 [accepted] PHST- 2015/05/07 06:00 [entrez] PHST- 2015/05/07 06:00 [pubmed] PHST- 2016/02/02 06:00 [medline] PHST- 2015/04/06 00:00 [pmc-release] AID - 10.1155/2015/365014 [doi] PST - ppublish SO - Biomed Res Int. 2015;2015:365014. doi: 10.1155/2015/365014. Epub 2015 Apr 6.