Abstract:
:Antibody-mediated osseous regeneration (AMOR) has been proved as a promising strategy for osteogenic differentiation of induced pluripotent stem cells derived MSCs (iMSCs). The key characteristic of antibody that determines the AMOR potential is largely unknown. The glycosylation profile of immunoglobulin G (IgG) represents a key checkpoint that determines its effector functions. Herein, we modified the sialylation profile of BMP2 antibodies to investigate the effects of glycosylation on antibody-mediated osteogenic differentiation of iMSCs. We found that over-sialylated BMP2 antibodies stimulated the highest amount of new bone while those non- or low-sialylated led to bone porosity and collapse. The immune response aroused by BMP2 immune complexes (BMP2-ICs) was intensified by desialylation, which contributed to an environment that favored osteoclastogenesis while inhibited osteoblastogenesis. In vitro study further demonstrated that the osteogenic potential of BMP2-ICs was not significantly affected by the degree of sialylation. On the other hand, BMP2-ICs could stimulate osteoclastogenesis by binding FcγRs on preosteoclasts directly, which was significantly intensified by desialylation and attenuated by over-sialylation. Bone defects implanted with alginate microbeads loaded with iMSCs and over-sialylated antibodies showed more bone formation than those sites with non- or low sialylated antibodies. Taken together, our study demonstrated that sialylation profile is one of the traits that decide the AMOR potential of BMP2 antibodies. Enhancement of sialylation may be a promising strategy to optimize antibody for iMSCs application in bone tissue engineering. STATEMENT OF SIGNIFICANCE: Antibody-mediated osseous regeneration (AMOR) is a promising strategy for bone tissue engineering that takes advantage of the specific reactivity of antibodies to sequester endogenous BMP2 and present it to osteoprogenitor cells. We previously demonstrated that BMP2 immune complex can drive iPSCs derived MSCs to osteogenic lineage. In this study, we analyze the effects of glycosylation profile on antibody directed osteogenic differentiation of iMSCs because glycosylation profile represents a key checkpoint that determines the effector functions of antibodies, and it is susceptible to variations in different clones. The results showed that sialylation profile is one of the traits that decides the AMOR potential of BMP2 antibody, and the enhancement of sialylation maybe a promising strategy to optimize antibodies for AMOR.
journal_name
Acta Biomaterjournal_title
Acta biomaterialiaauthors
Wu Q,Yang Y,Xie D,Li S,Liu Y,Shu L,Fu G,Xu Y,Ji Pdoi
10.1016/j.actbio.2020.07.055subject
Has Abstractpub_date
2020-09-15 00:00:00pages
221-232eissn
1742-7061issn
1878-7568pii
S1742-7061(20)30452-9journal_volume
114pub_type
杂志文章abstract::In this paper, the 3D-morphology of the porosity in dentin is investigated within the first 350μm from the dentin-enamel junction (DEJ) by fluorescence confocal laser scanning microscopy (CLSM). We found that the porous microstructure exhibits a much more complex geometry than classically described, which may impact o...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2017.01.052
更新日期:2017-03-15 00:00:00
abstract::The goal of this study was to explore the effects of osteoporosis-related therapeutics on bone remodeling in vitro. A previously established bone-tissue mimetic system consisting of silk protein biomaterials in combination with hydroxyapatite and human cells was used for the study. Silk-hydroxyapatite films were pre-c...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2013.09.028
更新日期:2014-01-01 00:00:00
abstract::There is an increasing clinical need to design novel dental materials that combine regenerative and antibacterial properties. In this work the characterization of a recently developed sol-gel-derived bioactive glass ceramic containing silver ions (Ag-BG) is presented. The microstructural characteristics, ion release p...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2014.04.030
更新日期:2014-08-01 00:00:00
abstract::Current developments in computer-aided design (CAD) and solid free-form fabrication (SFF) techniques enable fabrication of scaffolds with precisely designed architectures and mechanical properties. The present study demonstrates the effect of precisely designed three-dimensional scaffold architectures on in vivo degra...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2012.03.028
更新日期:2012-07-01 00:00:00
abstract::Implantation of biomaterials into the body elicits a material-dependent inflammatory response called the foreign body reaction (FBR). Macrophages play a pivotal role in the FBR by orchestrating the pro-inflammatory microenvironment around the biomaterials by secreting cytokines, chemokines and growth factors. When the...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2013.01.022
更新日期:2013-05-01 00:00:00
abstract::In order to expand the properties and applications of aliphatic absorbable polyesters, a new biodegradable block copolymer family, poly(ester amide)-b-poly(ε-caprolactone) (PEA-b-PCL), was synthesized and characterized. These copolymers were synthesized by first preparing l-phenylalanine-based poly(ester amide) macroi...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2012.07.027
更新日期:2012-12-01 00:00:00
abstract::The effects of the microstructures and phases of Zr-rich Mo alloys on their magnetic susceptibilities and mechanical properties were investigated in order to develop a Zr alloy with low magnetic susceptibility for use in magnetic resonance imaging (MRI). The magnetic susceptibility was measured with a magnetic suscept...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2011.07.005
更新日期:2011-12-01 00:00:00
abstract::Human pluripotent stem cell derived neural progenitor cells (hNPCs) have the unique properties of long-term in vitro expansion as well as differentiation into the various neurons and supporting cell types of the central nervous system (CNS). Because of these characteristics, hNPCs have tremendous potential in the mode...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2018.05.008
更新日期:2018-07-01 00:00:00
abstract::An investigation was carried out on equal-channel angular pressing (ECAP) and extrusion processing of a ZM21 Mg alloy to obtain an improved candidate material for the manufacturing of biodegradable Mg stents. Ultrafine-grain size billets of the ZM21 alloy were obtained by two-stage ECAP aimed at achieving an initial r...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2013.01.010
更新日期:2013-11-01 00:00:00
abstract::Titanium oxide coatings have been shown to exhibit desirable properties as biocompatible coatings. We report on the quantitative microstructure characterization and deformation behavior of TiO(2) nanotubes on Ti substrate. Nanotubes were processed using anodic oxidation of Ti in a NaF electrolyte solution. Characteriz...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2006.08.004
更新日期:2007-05-01 00:00:00
abstract::Thin film nitinol has unique mechanical properties (e.g., superelasticity), excellent biocompatibility, and ultra-smooth surface, as well as shape memory behavior. All these features along with its low-profile physical dimension (i.e., a few micrometers thick) make this material an ideal candidate in developing low-pr...
journal_title:Acta biomaterialia
pub_type: 杂志文章,评审
doi:10.1016/j.actbio.2015.03.025
更新日期:2015-07-01 00:00:00
abstract::The application of biodegradable magnesium-based materials in the biomedical field is highly restricted by their low fatigue strength and high corrosion rate in biological environments. Herein, we treated the surface of a biocompatible magnesium alloy AZ31 by severe shot peening in order to evaluate the potential of s...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2017.11.032
更新日期:2018-01-15 00:00:00
abstract::Antimicrobial peptides (AMPs), which are produced by multicellular organisms as a defense mechanism against competing pathogenic microbes, appear to be excellent candidates for the development of novel antimicrobial agents. Amphipathicity is traditionally believed to be crucial to the de novo design or systematic opti...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2013.08.043
更新日期:2014-01-01 00:00:00
abstract::There is growing interest in the use of synthetic biomaterials to deliver inorganic ions that are known to stimulate angiogenesis and osteogenesis in vivo. In the present study, we investigated the effects of varying amounts of copper in a bioactive glass on the response of human bone marrow-derived mesenchymal stem c...
journal_title:Acta biomaterialia
pub_type: 杂志文章,收录出版
doi:10.1016/j.actbio.2014.12.010
更新日期:2015-03-01 00:00:00
abstract::Recent biotechnological progress has enabled the production of spider silk proteins, spidroins, in heterologous hosts. Matrices based on recombinant spidroins support stem cell growth and are well tolerated when implanted in living tissue, thus the material is highly attractive for use in regenerative medicine. Howeve...
journal_title:Acta biomaterialia
pub_type: 杂志文章,评审
doi:10.1016/j.actbio.2013.09.030
更新日期:2014-04-01 00:00:00
abstract::We have developed a class of peptide amphiphile (PA) molecules that self-assemble into three-dimensional nanofiber networks under physiological conditions in the presence of polyvalent metal ions. The assembly can be triggered by adding PA solutions to cell culture media or other synthetic physiological fluids contain...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2005.04.002
更新日期:2005-07-01 00:00:00
abstract::A series of Sr-substituted hydroxyapatites, (Sr(x)Ca(1-)(x))(5)(PO(4))(3)OH, where x=0.00, 0.25, 0.50, 0.75 and 1.00, were made by a standard wet chemical route and investigated using X-ray diffraction (XRD), Rietveld refinement and Raman spectroscopy. We report apatites manufactured by two synthesis routes under 90 d...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2008.04.018
更新日期:2008-09-01 00:00:00
abstract::Multiple myeloma is a malignant disease characterized by accumulation of clonal plasma cells in the bone marrow. Uncoupling of bone formation and resorption by myeloma cells leads to osteolytic lesions. These are prone to fracture and represent a possible survival space for myeloma cells under treatment causing diseas...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2019.07.018
更新日期:2019-09-15 00:00:00
abstract::Cytokines mediate and control immune and inflammatory responses. Complex interactions exist among cytokines, inflammation, and the innate and adaptive immune responses in maintaining homeostasis, health, and well-being. On-demand, local delivery of anti-inflammatory drugs to target tissues provides an approach for mor...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2019.10.021
更新日期:2020-01-01 00:00:00
abstract:UNLABELLED:Fluorescence microscopy and spectroscopy techniques are commonly used to investigate complex and interacting biological systems (e.g. proteins and nanoparticles in living cells), since these techniques can explore intracellular dynamics with high time resolution at the nanoscale. Here we extended one of the ...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2016.07.031
更新日期:2016-09-15 00:00:00
abstract:UNLABELLED:To use siRNA (small interfering RNA) for gene therapy, a gene delivery system is often necessary to overcome several challenging requirements including rapid excretion, low stability in blood serum, non-specific accumulation in tissues, poor cellular uptake and inefficient intracellular release. Active and/o...
journal_title:Acta biomaterialia
pub_type: 评论,杂志文章,评审
doi:10.1016/j.actbio.2016.03.048
更新日期:2016-05-01 00:00:00
abstract::This paper investigates the effects of moisture, anisotropy, stress state, and strain rate on the mechanical properties of the bighorn sheep (Ovis Canadensis) horn keratin. The horns consist of fibrous keratin tubules extending along the length of the horn and are contained within an amorphous keratin matrix. Samples ...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2016.10.033
更新日期:2017-01-15 00:00:00
abstract::The understanding of corrosion processes of metal implants in the human body is a key problem in modern biomaterial science. Because of the complicated and adjustable in vivo environment, in vitro experiments require the analysis of various physiological corrosion media to elucidate the underlying mechanism of "biolog...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2011.03.004
更新日期:2011-06-01 00:00:00
abstract::Understanding the composition of the adsorbed protein layer on a biomaterial surface is of an extreme importance as it directs the primary biological response. Direct detection using labeled proteins and indirect detection based on enzymatic assays or changes to mass, refractive index or density of a surface have been...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2017.05.021
更新日期:2017-07-15 00:00:00
abstract::The humid atmosphere and permanent occurrence of chewing forces in the oral environment lead to degradation of ceramics used for prosthetic restorations. The aim of this in vitro study was to evaluate the influence of artificial aging on the load-bearing capacity of four-unit bridges, with both undamaged and predamage...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2008.04.012
更新日期:2008-09-01 00:00:00
abstract::Photodynamic therapy (PDT) generates highly toxic reactive oxygen species (ROS) during noninvasive cancer treatment. MutT homolog 1 (MTH1) protein is a DNA oxidative damage repair protease and suppressing its function may provide a strategy to enhance PDT efficacy by improving cellular sensitivity to ROS. A nanopartic...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2020.04.009
更新日期:2020-06-01 00:00:00
abstract::Dentin contains 1-2μm diameter tubules extending from the pulp cavity to near the junction with enamel. Peritubular dentin (PTD) borders the tubule lumens and is surrounded by intertubular dentin (ITD). Differences in PTD and ITD composition and microstructure remain poorly understood. Here, a (∼200nm)(2), 10.1keV syn...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2014.05.027
更新日期:2014-09-01 00:00:00
abstract::Owing to its bio- and osteoconductivity, hydroxyapatite (HA) is a widely used implant material, but its osteogenic properties are only partly evaluated in vitro and in vivo. The present study focused on bone healing adjacent to HA-coated titanium (Ti) implants, with or without incorporated lithium ions (Li(+)). Specia...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2013.12.012
更新日期:2014-03-01 00:00:00
abstract::Although a growing knowledge on the field of tissue engineering of articular cartilage exists, reconstruction or in-vitro growth of functional hyaline tissue still represents an unmet challenge. Despite the simplicity of the tissue in terms of cell population and absence of innervation and vascularization, the outstan...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2019.11.041
更新日期:2020-01-15 00:00:00
abstract::Corneal blindness is traditionally treated by transplantation of a donor cornea, or in severe cases by implantation of an artificial cornea or keratoprosthesis. Due to severe donor shortages and the risks of complications that come with artificial corneas, tissue engineering in ophthalmology has become more focused on...
journal_title:Acta biomaterialia
pub_type: 杂志文章,评审
doi:10.1016/j.actbio.2018.01.023
更新日期:2018-03-15 00:00:00