PMID- 25335455 OWN - NLM STAT- MEDLINE DCOM- 20151204 LR - 20181202 IS - 2192-2659 (Electronic) IS - 2192-2640 (Linking) VI - 4 IP - 4 DP - 2015 Mar 11 TI - Flavonoid-modified surfaces: multifunctional bioactive biomaterials with osteopromotive, anti-inflammatory, and anti-fibrotic potential. PG - 540-9 LID - 10.1002/adhm.201400587 [doi] AB - Flavonoids are small polyphenolic molecules of natural origin with antioxidant, anti-inflammatory, and antibacterial properties. Here, a bioactive surface based on the covalent immobilization of flavonoids taxifolin and quercitrin on titanium substrates is presented, using (3-aminopropyl)triethoxysilane (APTES) as coupling agent. FTIR and XPS measurements confirm the grafting of the flavonoids to the surfaces. Using 2-aminoethyl diphenylborinate (DPBA, a flavonoid-specific dye), the modified surfaces are imaged by fluorescence microscopy. The bioactivity of the flavonoid-modified surfaces is evaluated in vitro with human umbilical cord derived mesenchymal stem cells (hUC-MSCs) and human gingival fibroblasts (HGFs) and compared to that of simple flavonoid coatings prepared by drop casting. Flavonoid-modified surfaces show anti-inflammatory and anti-fibrotic potential on HGF. In addition, Ti surfaces covalently functionalized with flavonoids promote the differentiation of hUC-MSCs to osteoblasts--enhancing the expression of osteogenic markers, increasing alkaline phosphatase activity and calcium deposition; while drop-casted surfaces do not. These findings could have a high impact in the development of advanced implantable medical devices like bone implants. Given the broad range of bioactivities of flavonoid compounds, these surfaces are ready to be explored for other biomedical applications, e.g., as stent surface or tumor-targeted functionalized nanoparticles for cardiovascular or cancer therapies. CI - (c) 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. FAU - Cordoba, Alba AU - Cordoba A AD - Group of Cell Therapy and Tissue Engineering, Research Institute on Health Sciences (IUNICS), University of the Balearic Islands, Ctra. Valldemossa km 7.5, 07122, Palma de Mallorca, Spain. FAU - Satue, Maria AU - Satue M FAU - Gomez-Florit, Manuel AU - Gomez-Florit M FAU - Hierro-Oliva, Margarita AU - Hierro-Oliva M FAU - Petzold, Christiane AU - Petzold C FAU - Lyngstadaas, Staale P AU - Lyngstadaas SP FAU - Gonzalez-Martin, Maria Luisa AU - Gonzalez-Martin ML FAU - Monjo, Marta AU - Monjo M FAU - Ramis, Joana M AU - Ramis JM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141021 PL - Germany TA - Adv Healthc Mater JT - Advanced healthcare materials JID - 101581613 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Biocompatible Materials) RN - 0 (Flavonoids) RN - D1JT611TNE (Titanium) RN - EC 1.1.1.27 (L-Lactate Dehydrogenase) RN - EC 3.1.3.1 (Alkaline Phosphatase) RN - SY7Q814VUP (Calcium) SB - IM MH - Alkaline Phosphatase/metabolism MH - Anti-Inflammatory Agents/*pharmacology MH - Biocompatible Materials/*pharmacology MH - Calcium/metabolism MH - Cell Death/drug effects MH - Cell Shape/drug effects MH - Cells, Cultured MH - Fibroblasts/cytology MH - Fibrosis MH - Flavonoids/chemistry/*pharmacology MH - Gene Expression Regulation/drug effects MH - Gingiva/cytology MH - Humans MH - L-Lactate Dehydrogenase/metabolism MH - Mesenchymal Stem Cells/cytology/drug effects/metabolism MH - Microscopy, Fluorescence MH - Osteogenesis/*drug effects MH - Photoelectron Spectroscopy MH - Spectroscopy, Fourier Transform Infrared MH - Titanium/pharmacology MH - Wettability OTO - NOTNLM OT - bioactivity OT - biomaterials OT - flavonoids OT - surface functionalization OT - titanium EDAT- 2014/10/23 06:00 MHDA- 2015/12/15 06:00 CRDT- 2014/10/23 06:00 PHST- 2014/09/23 00:00 [received] PHST- 2014/10/05 00:00 [revised] PHST- 2014/10/23 06:00 [entrez] PHST- 2014/10/23 06:00 [pubmed] PHST- 2015/12/15 06:00 [medline] AID - 10.1002/adhm.201400587 [doi] PST - ppublish SO - Adv Healthc Mater. 2015 Mar 11;4(4):540-9. doi: 10.1002/adhm.201400587. Epub 2014 Oct 21.