PMID- 33142116 OWN - NLM STAT- MEDLINE DCOM- 20210524 LR - 20210524 IS - 1878-5905 (Electronic) IS - 0142-9612 (Linking) VI - 267 DP - 2021 Jan TI - Surface Co-presentation of BMP-2 and integrin selective ligands at the nanoscale favors alpha(5)beta(1) integrin-mediated adhesion. PG - 120484 LID - S0142-9612(20)30730-4 [pii] LID - 10.1016/j.biomaterials.2020.120484 [doi] AB - Here we present the use of surface nanopatterning of covalently immobilized BMP-2 and integrin selective ligands to determine the specificity of their interactions in regulating cell adhesion and focal adhesion assembly. Gold nanoparticle arrays carrying single BMP-2 dimers are prepared by block-copolymer micellar nanolithography and azide-functionalized integrin ligands (cyclic-RGD peptides or alpha(5)beta(1) integrin peptidomimetics) are immobilized on the surrounding polyethylene glycol alkyne by click chemistry. Compared to BMP-2 added to the media, surface immobilized BMP-2 (iBMP-2) favors the spatial segregation of adhesion clusters and enhances focal adhesion (FA) size in cells adhering to alpha(5)beta(1) integrin selective ligands. Moreover, iBMP-2 copresented with alpha(5)beta(1) integrin ligands induces the recruitment of alpha(v)beta(3) integrins in FAs. When copresented with RGD, iBMP-2 induces the assembly of a higher number of FAs, which are not affected by alpha(5)beta(1) integrin blocking. Our dual-functionalized platforms offer the possibility to study the crosstalk between integrins and BMP receptors, and more in general they could be used to address the spatial regulation of growth factors and adhesion receptors crosstalk on biomimetic surfaces. CI - Copyright (c) 2020 The Authors. Published by Elsevier Ltd.. All rights reserved. FAU - Posa, Francesca AU - Posa F AD - Max Planck Institute for Medical Research, Department of Cellular Biophysics, Jahnstrasse 29, Heidelberg, 69120, Germany. FAU - Baha-Schwab, Elisabeth H AU - Baha-Schwab EH AD - Max Planck Institute for Medical Research, Department of Cellular Biophysics, Jahnstrasse 29, Heidelberg, 69120, Germany. FAU - Wei, Qiang AU - Wei Q AD - Max Planck Institute for Medical Research, Department of Cellular Biophysics, Jahnstrasse 29, Heidelberg, 69120, Germany. FAU - Di Benedetto, Adriana AU - Di Benedetto A AD - University of Foggia, Department of Clinical and Experimental Medicine, viale Pinto 1, Foggia, 71122, Italy. FAU - Neubauer, Stefanie AU - Neubauer S AD - Institute for Advanced Study and Center of Integrated Protein Science (CIPSM), Department of Chemistry, Technische Universitat Munchen, Lichtenbergstrasse 4, Garching, 85748, Germany. FAU - Reichart, Florian AU - Reichart F AD - Institute for Advanced Study and Center of Integrated Protein Science (CIPSM), Department of Chemistry, Technische Universitat Munchen, Lichtenbergstrasse 4, Garching, 85748, Germany. FAU - Kessler, Horst AU - Kessler H AD - Institute for Advanced Study and Center of Integrated Protein Science (CIPSM), Department of Chemistry, Technische Universitat Munchen, Lichtenbergstrasse 4, Garching, 85748, Germany. FAU - Spatz, Joachim P AU - Spatz JP AD - Max Planck Institute for Medical Research, Department of Cellular Biophysics, Jahnstrasse 29, Heidelberg, 69120, Germany. FAU - Albiges-Rizo, Corinne AU - Albiges-Rizo C AD - Institut Albert Bonniot, Universite Joseph Fourier, INSERM U823, CNRS ERL 5284, Grenoble Alpessite Sante, Grenoble Cedex, 09, F38042, France. FAU - Mori, Giorgio AU - Mori G AD - University of Foggia, Department of Clinical and Experimental Medicine, viale Pinto 1, Foggia, 71122, Italy. FAU - Cavalcanti-Adam, Elisabetta Ada AU - Cavalcanti-Adam EA AD - Max Planck Institute for Medical Research, Department of Cellular Biophysics, Jahnstrasse 29, Heidelberg, 69120, Germany. Electronic address: eacavalcanti@mr.mpg.de. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20201026 PL - Netherlands TA - Biomaterials JT - Biomaterials JID - 8100316 RN - 0 (Integrin alpha5beta1) RN - 0 (Integrin alphaVbeta3) RN - 0 (Ligands) RN - 7440-57-5 (Gold) SB - IM MH - Cell Adhesion MH - *Gold MH - Integrin alpha5beta1 MH - Integrin alphaVbeta3 MH - Ligands MH - *Metal Nanoparticles OTO - NOTNLM OT - BMP-2 OT - Click chemistry OT - Focal adhesions OT - Integrins OT - Surface functionalization EDAT- 2020/11/04 06:00 MHDA- 2021/05/25 06:00 CRDT- 2020/11/03 20:08 PHST- 2020/05/05 00:00 [received] PHST- 2020/10/14 00:00 [revised] PHST- 2020/10/21 00:00 [accepted] PHST- 2020/11/04 06:00 [pubmed] PHST- 2021/05/25 06:00 [medline] PHST- 2020/11/03 20:08 [entrez] AID - S0142-9612(20)30730-4 [pii] AID - 10.1016/j.biomaterials.2020.120484 [doi] PST - ppublish SO - Biomaterials. 2021 Jan;267:120484. doi: 10.1016/j.biomaterials.2020.120484. Epub 2020 Oct 26.