Joseph J Pearson1, Johnna S Temenoff2,3. 1. W.H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 313 Ferst Drive, Atlanta, GA, 30332, USA. 2. W.H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 313 Ferst Drive, Atlanta, GA, 30332, USA. Johnna.temenoff@bme.gatech.edu. 3. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Drive, Atlanta, GA, 30332, USA. Johnna.temenoff@bme.gatech.edu.
Abstract
PURPOSE OF REVIEW: Tissue regenerative solutions for musculoskeletal disorders have become increasingly important with a growing aged population. Current growth factor treatments often require high dosages with the potential for off-target effects. Growth factor immobilization strategies offer approaches towards alleviating these concerns. This review summarizes current growth factor immobilization techniques (encapsulation, affinity interactions, and covalent binding) and the effects of immobilization on growth factor loading, release, and bioactivity. RECENT FINDINGS: The breadth of immobilization techniques based on encapsulation, affinity, and covalent binding offer multiple methods to improve the therapeutic efficacy of growth factors by controlling bioactivity and release. Growth factor immobilization strategies have evolved to more complex systems with the capacity to load and release multiple growth factors with spatiotemporal control. The advancements in immobilization strategies allow for development of new, complex musculoskeletal tissue treatment strategies with improved spatiotemporal control of loading, release, and bioactivity.
PURPOSE OF REVIEW: Tissue regenerative solutions for musculoskeletal disorders have become increasingly important with a growing aged population. Current growth factor treatments often require high dosages with the potential for off-target effects. Growth factor immobilization strategies offer approaches towards alleviating these concerns. This review summarizes current growth factor immobilization techniques (encapsulation, affinity interactions, and covalent binding) and the effects of immobilization on growth factor loading, release, and bioactivity. RECENT FINDINGS: The breadth of immobilization techniques based on encapsulation, affinity, and covalent binding offer multiple methods to improve the therapeutic efficacy of growth factors by controlling bioactivity and release. Growth factor immobilization strategies have evolved to more complex systems with the capacity to load and release multiple growth factors with spatiotemporal control. The advancements in immobilization strategies allow for development of new, complex musculoskeletal tissue treatment strategies with improved spatiotemporal control of loading, release, and bioactivity.
Authors: Dan Wang; Xu Zhang; Shuting Huang; Yang Liu; Bruma Sai-Chuen Fu; Kingston King-Lun Mak; Anna Maria Blocki; Patrick Shu-Hang Yung; Rocky S Tuan; Dai Fei Elmer Ker Journal: Biomaterials Date: 2021-03-30 Impact factor: 12.479
Authors: Ramesh Subbiah; Marissa A Ruehle; Brett S Klosterhoff; Angela S P Lin; Marian H Hettiaratchi; Nick J Willett; Luiz E Bertassoni; Andrés J García; Robert E Guldberg Journal: Acta Biomater Date: 2021-04-03 Impact factor: 8.947