2022
DOI: 10.1016/j.actbio.2021.11.011
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Hydroxyapatite-decorated Fmoc-hydrogel as a bone-mimicking substrate for osteoclast differentiation and culture

Abstract: Hydrogels are water-swollen networks with great potential for tissue engineering applications. However, their use in bone regeneration is often hampered due to a lack of materials’ mineralization and poor mechanical properties. Moreover, most studies are focused on osteoblasts (OBs) for bone formation, while osteoclasts (OCs), cells involved in bone resorption, are often overlooked. Yet, the role of OCs is pivotal for bone homeostasis and aberrant OC activity has been reported in several pathological diseases,… Show more

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Cited by 25 publications
(25 citation statements)
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“…Several papers also aim to evaluate in vitro the important prerequisite of resorbability of bone graft substitutes, defined as the capability of biomaterials to disappear from the site of implantation over time [ 129 ]. Standard protocols are usually based on the cultivation of primary monocytes/macrophages isolated from blood samples [ 130 , 131 , 132 ] or from bone marrow [ 106 , 113 , 133 ], or of the RAW 264.7 murine macrophage cell line [ 133 , 134 , 135 ] on the scaffolds of interest, followed by the analysis of monocyte adhesion, proliferation, and osteoclast formation. The osteoclastogenesis process can be studied using different protocols.…”
Section: Biomaterials Resorbabilitymentioning
confidence: 99%
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“…Several papers also aim to evaluate in vitro the important prerequisite of resorbability of bone graft substitutes, defined as the capability of biomaterials to disappear from the site of implantation over time [ 129 ]. Standard protocols are usually based on the cultivation of primary monocytes/macrophages isolated from blood samples [ 130 , 131 , 132 ] or from bone marrow [ 106 , 113 , 133 ], or of the RAW 264.7 murine macrophage cell line [ 133 , 134 , 135 ] on the scaffolds of interest, followed by the analysis of monocyte adhesion, proliferation, and osteoclast formation. The osteoclastogenesis process can be studied using different protocols.…”
Section: Biomaterials Resorbabilitymentioning
confidence: 99%
“…The presence of tartrate resistant acidic phosphate (TRAP)-positive cells, representing mature osteoclasts, is usually evaluated [ 106 , 113 , 131 , 132 , 133 , 134 , 135 ]. The measure of the enzymatic activity of TRAP5b and cathepsin K (CTSK) in the medium supernatant of scaffold-seeded cells, as well as of their expression levels, are also reported [ 92 , 130 , 133 ].…”
Section: Biomaterials Resorbabilitymentioning
confidence: 99%
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“…However, chitosan-based hydrogels often fail to meet the mechanical strength requirements of bone fillers. The poor mechanical strength of chitosan-based hydrogels can be compensated by incorporating several types of nanofillers, i.e., carbon nanotubes and cellulose nanocrystals, which is particularly important for treating managing osteoporotic vertebral compression fractures (Cancian et al, 2016;Ghavimi et al, 2019;Vitale et al, 2022). Frontiers in Bioengineering and Biotechnology frontiersin.org…”
Section: Hyaluronic Acidmentioning
confidence: 99%
“…Wang et al [ 23 ] introduced a cell adhesive ligand Fmoc-arginyl-glycyl-aspartate (FmocRGD) and developed FmocFF/FmocRGD hydrogel for three-dimensional (3D) culturing of mesenchymal stem cells. Recently, Vitale et al [ 24 ] developed a three-component assembled hydrogel composed of FmocFF/FmocS/FmocRGD, where FmocS was Fmoc-serine. This hydrogel enabled HAp-binding and cell adhesion, and promoted osteoclast differentiation of RAW264.7 macrophages, showing potential in bone tissue engineering.…”
Section: Introductionmentioning
confidence: 99%