期刊
RSC ADVANCES
卷 10, 期 45, 页码 26982-26996出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ra03872e
关键词
-
资金
- Office of the Assistant Secretary of Defense for Health Affairs Broad Agency Announcement for Extramural Medical Research [W81XWH-16-1-0566]
- National Institute of Dental and Craniofacial Research of the National Institutes of Health [R21 DE026582]
- NSF Graduate Research Fellowship [DGE-1144245]
- Chemical and Biomolecular Engineering Department at the University of Illinois at Urbana-Champaign
- Carl R. Woese Institute for Genomic Biology (BACH) at the University of Illinois at Urbana-Champaign
Trauma induced injuries of the mouth, jaw, face, and related structures present unique clinical challenges due to their large size and complex geometry. Growth factor signaling coordinates the behavior of multiple cell types following an injury, and effective coordination of growth factor availability within a biomaterial can be critical for accelerating bone healing. Mineralized collagen scaffolds are a class of degradable biomaterial whose biophysical and compositional parameters can be adjusted to facilitate cell invasion and tissue remodeling. Here we describe the use of modified simulated body fluid treatments to enable sequential sequestration of bone morphogenic protein 2 and vascular endothelial growth factor into mineralized collagen scaffolds for bone repair. We report the capability of these scaffolds to sequester 60-90% of growth factor from solution without additional crosslinking treatments and show high levels of retention for individual (>94%) and multiple growth factors (>88%) that can be layered into the materialviasequential sequestration steps. Sequentially sequestering growth factors allows prolonged release of growth factorsin vitro(>94%) and suggests the potential to improve healing of large-scale bone injury modelsin vivo. Future work will utilize this sequestration method to induce cellular activities critical to bone healing such as vessel formation and cell migration.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据