PMID- 25818416 OWN - NLM STAT- MEDLINE DCOM- 20151214 LR - 20220409 IS - 1878-5905 (Electronic) IS - 0142-9612 (Linking) VI - 52 DP - 2015 Jun TI - Development and functional evaluation of biomimetic silicone surfaces with hierarchical micro/nano-topographical features demonstrates favourable in vitro foreign body response of breast-derived fibroblasts. PG - 88-102 LID - S0142-9612(15)00113-1 [pii] LID - 10.1016/j.biomaterials.2015.02.003 [doi] AB - Reproducing extracellular matrix topographical cues, such as those present within acellular dermal matrix (ADM), in synthetic implant surfaces, may augment cellular responses, independent of surface chemistry. This could lead to enhanced implant integration and performance while reducing complications. In this work, the hierarchical micro and nanoscale features of ADM were accurately and reproducibly replicated in polydimethylsiloxane (PDMS), using an innovative maskless 3D grayscale fabrication process not previously reported. Human breast derived fibroblasts (n=5) were cultured on PDMS surfaces and compared to commercially available smooth and textured silicone implant surfaces, for up to one week. Cell attachment, proliferation and cytotoxicity, in addition to immunofluorescence staining, SEM imaging, qRT-PCR and cytokine array were performed. ADM PDMS surfaces promoted cell adhesion, proliferation and survival (p=<0.05), in addition to increased focal contact formation and spread fibroblast morphology when compared to commercially available implant surfaces. PCNA, vinculin and collagen 1 were up-regulated in fibroblasts on biomimetic surfaces while IL8, TNFalpha, TGFbeta1 and HSP60 were down-regulated (p=<0.05). A reduced inflammatory cytokine response was also observed (p=<0.05). This study represents a novel approach to the development of functionalised biomimetic prosthetic implant surfaces which were demonstrated to significantly attenuate the acute in vitro foreign body reaction to silicone. CI - Copyright (c) 2015 The Authors. Published by Elsevier Ltd.. All rights reserved. FAU - Kyle, Daniel J T AU - Kyle DJ AD - Plastic and Reconstructive Surgery Research, Manchester Institute of Biotechnology, University of Manchester, Manchester, UK; School of Computer Science, Centre for Mesoscience and Nanotechnology, The University of Manchester, Manchester, UK. FAU - Oikonomou, Antonios AU - Oikonomou A AD - School of Computer Science, Centre for Mesoscience and Nanotechnology, The University of Manchester, Manchester, UK. FAU - Hill, Ernie AU - Hill E AD - School of Computer Science, Centre for Mesoscience and Nanotechnology, The University of Manchester, Manchester, UK. FAU - Bayat, Ardeshir AU - Bayat A AD - Plastic and Reconstructive Surgery Research, Manchester Institute of Biotechnology, University of Manchester, Manchester, UK. Electronic address: Ardeshir.Bayat@manchester.ac.uk. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150221 PL - Netherlands TA - Biomaterials JT - Biomaterials JID - 8100316 RN - 0 (Dimethylpolysiloxanes) RN - 0 (Silicones) RN - 63148-62-9 (baysilon) SB - IM MH - Adult MH - Biomimetic Materials/*chemistry MH - Biomimetics/methods MH - Breast/*cytology/immunology MH - Breast Implants/*adverse effects MH - Cell Adhesion MH - Cells, Cultured MH - Dimethylpolysiloxanes/*chemistry MH - Female MH - Fibroblasts/*cytology/immunology MH - Foreign-Body Reaction/*etiology/immunology MH - Humans MH - Inflammation/etiology/immunology MH - Middle Aged MH - Silicones/chemistry MH - Surface Properties OTO - NOTNLM OT - Acellular dermal matrix (ADM) OT - Biomimetic topography OT - Capsular contracture OT - Cell-implant interface OT - Micro and nano patterning OT - Silicone breast implant EDAT- 2015/03/31 06:00 MHDA- 2015/12/15 06:00 CRDT- 2015/03/31 06:00 PHST- 2014/07/31 00:00 [received] PHST- 2015/01/25 00:00 [revised] PHST- 2015/02/01 00:00 [accepted] PHST- 2015/03/31 06:00 [entrez] PHST- 2015/03/31 06:00 [pubmed] PHST- 2015/12/15 06:00 [medline] AID - S0142-9612(15)00113-1 [pii] AID - 10.1016/j.biomaterials.2015.02.003 [doi] PST - ppublish SO - Biomaterials. 2015 Jun;52:88-102. doi: 10.1016/j.biomaterials.2015.02.003. Epub 2015 Feb 21.