{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,20]],"date-time":"2026-10-20T15:33:44Z","timestamp":1792510424347,"version":"4.5.0"},"reference-count":44,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2017,5,10]],"date-time":"2017-05-10T00:00:00Z","timestamp":1494374400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100002924","name":"Federaci\u00f3n Espa\u00f1ola de Enfermedades Raras","doi-asserted-by":"publisher","award":["PEst\u2010C\/SAU\/LA0002\/2013"],"award-info":[{"award-number":["PEst\u2010C\/SAU\/LA0002\/2013"]}],"id":[{"id":"10.13039\/501100002924","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Biomedical Materials Res"],"published-print":{"date-parts":[[2017,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Prostate cancer (PCa) is the second leading cause of death among men in Europe and U.S. The metastatic dissemination pattern of PCa is unique, developing bone metastasis as the only site of progression, consequently with a prognosis very poor. The cancer cells interactions within the surrounding bone environment are critical for tumor growth and progression. Secreted protein, acidic and rich in cysteine (SPARC) is described to be involved in PCa cells migration and invasion into bone. Three\u2010dimensional (3D) <jats:italic>in vitro<\/jats:italic> systems that are able to closely resemble the <jats:italic>in vivo<\/jats:italic> microenvironment are recently taking importance in cancer research. Original nanohydroxyapatite\/collagen scaffolds were designed to resemble bone microenvironment in order to be applied as substitutes in bone defects and as potential biomaterials to mimic skeletal tumors. In fact, these 3D structures were cytocompatible and able to support osteoblast (MC3T3\u2010E1) colonization and to promote bone ingrowth. Additionally, SPARC adsorption onto the scaffolds affected PC3 and LNCaP PCa cell lines behavior. PC3 cells were found to adapt and colonize the scaffolds, differing from LNCaP where cells underwent morphogenic changes and grew as clusters. Furthermore, for the tested SPARC concentration, SPARC plays a role in retaining LNCaP cells at the latter time points while with PC3 cells no significant differences were observed. This characterization study is required to establish a bone model to provide new insights into the poorly understood PCa mechanisms of metastasis to bone and the generation of improved therapies. \u00a9 2016 Wiley Periodicals, Inc. 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