This study was performed to evaluate the relative roles of Mmp9 and Mmp14 in regulating osteoclast function and the physiological and pathological consequences of their targeting on bone homeostasis. These objectives were addressed by (i) determining the MMP profile selectively expressed in mouse osteoclasts in vitro and in vivo, (ii) characterizing the cooperative role of Mmp9/Mmp14 in controlling bone resorption and type I collagenolysis by mouse osteoclasts in vitro, (iii) demonstrating the utility of dual MMP9 and MMP14 blockade in regulating human osteoclast-dependent bone resorption, and (iv) defining the cooperative role of Mmp9/Mmp14 in controlling mouse osteoclast-dependent bone resorption during physiologic versus pathologic bone resorption in vivo. All data presented here have been replicated in independent cohorts of three or more mice or in three or more biological replicates for in vitro experiments. Samples were assigned randomly to the experimental groups. Data collection for each experiment is detailed in the respective figures, figure legends, and methods. For genotyping primers and quantitative real-time PCR primers, see tables S1 and S2 , respectively. Individual subject-level data for experiments where n < 20 are included in data file S1 . Full images of Western blots are presented in data file S2 .
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Organ or Tissue Function
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Bone Resorption
Bone Resorption
Bone resorption is the physiological process by which osteoclasts break down bone tissue, releasing minerlas, matrix, and growth factors into the bloodstream.
This process is essential for the maintenance and remodeling of healthy bone structure.
Dysregulation of bone resorption can lead to conditions such as osteoporosis, Paget's disease, and rheumatoid arthrtis.
Researchers studying bone resorption utilize a variety of in vitro and in vivo models to investigate the underlying cellular and molecular mechanisms.
Optimizing these research protocols is crucial for enhancing the reproducibility and accuracy of findings in this important area of skeletal biology.
This process is essential for the maintenance and remodeling of healthy bone structure.
Dysregulation of bone resorption can lead to conditions such as osteoporosis, Paget's disease, and rheumatoid arthrtis.
Researchers studying bone resorption utilize a variety of in vitro and in vivo models to investigate the underlying cellular and molecular mechanisms.
Optimizing these research protocols is crucial for enhancing the reproducibility and accuracy of findings in this important area of skeletal biology.
Most cited protocols related to «Bone Resorption»
Biopharmaceuticals
Bone Resorption
Bones
Homeostasis
Homo sapiens
MMP9 protein, human
MMP14 protein, human
Mus
Oligonucleotide Primers
Osteoclasts
physiology
Real-Time Polymerase Chain Reaction
Western Blot
Bone Resorption
Cancellous Bone
Cartilage
Cells
Compact Bone
Cortex, Cerebral
Eosin
Formalin
Inflammation
Joint Loose Bodies
Osteopenia
safranine T
Tissues
The horizontal alveolar bone resorption (ABR) area and the presence of periodontal intrabony defects were measured by histomorphometry as described previously [37] (link), . Briefly, the maxilla and mandible (n = 10−15) were immersed in 3% (vol/vol) hydrogen peroxide overnight after autoclaving and defleshing the maxillae and mandibles and stained in an aqueous solution of 0.1% methylene blue to delineate the cemento-enamel junction (CEJ) [37] (link), [38] (link), [39] (link). Digital images of both buccal and lingual root surfaces of all molar teeth were captured under a 10×stereo dissecting microscope (SteReo Discovery V8; Carl Zeiss Microimaging, Inc, Thornwood, NY), after superimposition of buccal and lingual cusps to ensure reproducibility and consistency. The line tool was used to measure the horizontal alveolar bone resorption from the CEJ to the alveolar bone crest (ABC). The surface perimeters of CEJ and ABC were traced using the calibrated line tool (AxioVision LE 29A software version 4.6.3.). Two blinded examiners performed all measurements twice at separate times. The means of the measurements were obtained for each of the two quadrants. Periodontal intrabony defects were detected under a 10×stereo dissecting microscope (SteReo Discovery V8) by an experienced periodontist (JL). The maxillae and mandibles were tilted and stabilized with dental wax to verify the presence of the intrabony defects in buccal and lingual surfaces. Only the presence or absence of intrabony defects was detected because the crevasses in the mouse jaw are too small to measure depth and width.
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Alveolar Bone Loss
Bone Resorption
Bones
Dental Enamel
Dental Health Services
Mandible
Maxilla
Microscopy
Molar
Mus
Perimetry
Periodontal Ligament
Periodontists
Peroxide, Hydrogen
Ridge, Alveolar
Tongue
Tooth Root
TP63 protein, human
Adenoviruses
Adenovirus Vaccine
Animals
Bone Resorption
DUSP1 protein, human
Food
Gene Expression
Gingiva
HEPES
Institutional Animal Care and Use Committees
LacZ Genes
Males
Maxilla
Mice, House
Mice, Knockout
Molar
Obstetric Delivery
Pharmaceutical Preparations
Plague
Rats, Sprague-Dawley
Rattus norvegicus
Rivers
Saline Solution
Tissues
Whole knee joints and hind paws were fixed in 10% formalin, decalcified, trimmed, and embedded. Sections were prepared from the tissue blocks and stained with hematoxylin and eosin (H&E) (Comparative Biosciences). Histopathological scoring was performed as described below. Knees of arthritic mice were given scores of 0–5 for inflammation, according to the following criteria: 0 = normal; 1 = minimal infiltration of inflammatory cells in periarticular area; 2 = mild infiltration; 3 = moderate infiltration; 4 = marked infiltration; and 5 = severe infiltration. Knees of arthritic mice were given scores of 0–5 for bone resorption, according to the following criteria: 0 = normal; 1 = minimal (small areas of resorption, not readily apparent on low magnification); 2 = mild (more numerous areas of resorption, not readily apparent on low magnification, in trabecular or cortical bone); 3 = moderate (obvious resorption of trabecular and cortical bone, without full-thickness defects in the cortex; loss of some trabeculae; lesions apparent on low magnification); 4 = marked (full-thickness defects in the cortical bone and marked trabecular bone loss, without distortion of the profile of the remaining cortical surface); and 5 = severe (full-thickness defects in the cortical bone and marked trabecular bone loss, with distortion of the profile of the remaining cortical surface). Each slide was scored by two independent observers and the average score was used.
Bone Resorption
Cancellous Bone
Cells
Compact Bone
Cortex, Cerebral
Eosin
Formalin
Inflammation
Knee
Knee Joint
Mus
Osteopenia
Tissues
Most recents protocols related to «Bone Resorption»
Bone Resorption
Epistropheus
Galectin 3
Mass Spectrometry
Metabolome
Mitochondria
MMP9 protein, human
MMP14 protein, human
Oligonucleotide Primers
Osteoclasts
Real-Time Polymerase Chain Reaction
RHOA protein, human
Calvariae from 5-d-old wild-type or DKO mice were isolated aseptically, cleaned, and cultured for 16 h at 37°C in 0.5 ml of BGJb medium (Life Technologies) containing 1 mg/ml BSA (fraction V; Sigma-Aldrich; Moxon et al., 2015 (link)). Half calvariae were transferred to fresh medium with 0.1 μM parathyroid hormone (H-4835.0005; Bachem) in the presence or absence of an anti–galectin-3 monoclonal antibody (sc-32790L; Santa Cruz) or an anti-Lrp1 monoclonal antibody (MA1-27198; Thermo Fisher Scientific), and cultured for an additional 5 d. Culture supernatant was collected for bone resorption marker CTX-I level detection using RatLaps CTX-I EIA kit (AC-06F1; Immunodiagnostic Systems). The half calvariae were either fixed for immunostaining with an anti-TRAP polyclonal antibody (sc-30833; Santa Cruz), an anti–galectin-3 monoclonal antibody (#125401; Biolegend; clone M3/38), or an anti-V-type proton pump-3 (Vpp3) polyclonal antibody (ab200839; Abcam) as describe above or snap-frozen for TRAP activity assay.
Antibodies, Anti-Idiotypic
Biological Assay
Bone Resorption
Calvaria
Clone Cells
Freezing
Galectin 3
Immunodiagnosis
Immunoglobulins
Monoclonal Antibodies
Mus
Parathyroid Hormone
Physiotens
Protons
Normal human CD14+ monocytes (Lonza) were cultured in α-MEM supplemented with 10% FBS, 2 mM L-glutamine, 100 U/ml penicillin-streptomycin, and 20 ng/ml M-CSF for 6 d to expand the precursor population and differentiate into macrophages. Cells were then detached with Accutase (A1110501; Gibco), seeded on tissue-culture plastic dishes, and cultured with M-CSF (20 ng/ml) and RANKL (20 ng/ml) for 9 d to induce multinuclear osteoclast formation, or reseeded on bone slices for bone resorption assay (Raynaud-Messina et al., 2018 (link); Zhu et al., 2020 (link)). Human osteoclasts were cultured with isotype control IgG, MMP9 function-blocking monoclonal antibody (sc-12759L; Santa Cruz), and a function-blocking antibody anti-MMP14 (DX-2400) at 100 μg/ml (Ager et al., 2015 (link); Marshall et al., 2015 (link); Zhu et al., 2020 (link)), in the presence or absence of an anti–GALECTIN-3 blocking antibody (sc-32790L; Santa Cruz) or an anti-LRP1 blocking antibody (MA1-27198; Thermo Fisher Scientific) at 25 μg/ml (Chen et al., 2015 (link); Moxon et al., 2015 (link); Seguin et al., 2017 (link)). DX-2400 was provided by the Kadmon Corporation.
accutase
Antibodies, Blocking
Biological Assay
Bone Resorption
Bones
Cells
DX-2400
Galectin 3
Glutamine
Homo sapiens
Hyperostosis, Diffuse Idiopathic Skeletal
Immunoglobulin Isotypes
Macrophage
Macrophage Colony-Stimulating Factor
MMP9 protein, human
MMP14 protein, human
Monoclonal Antibodies
Monocytes
Osteoclasts
Penicillins
Physiotens
RAGE receptor protein, human
Raynaud Disease
Streptomycin
Tissues
TNFSF11 protein, human
For bone resorption assays, BMDMs or pre-osteoclasts were seeded and cultured on bovine cortical bone slices (DT-1BON1000-96; Immunodiagnostic Systems) with 20 ng/ml M-CSF and 30 ng/ml RANKL (R&D Systems; Wu et al., 2017 (link); Zhang et al., 2018 (link); Zhu et al., 2020 (link)), in the presence or absence of galectin-3 (8259-GA; R&D Systems), galectin-3C (10110-GA; R&D Systems), GCS-100 (La Jolla Pharmaceutical), RAP (4480-LR; R&D Systems), an anti–galectin-3 blocking antibody (sc-32790L; Santa Cruz), or an anti-Lrp1 blocking antibody (MA1-27198; Thermo Fisher Scientific; Chen et al., 2015 (link); Demotte et al., 2010 (link); John et al., 2003 (link); Moxon et al., 2015 (link); Seguin et al., 2017 (link)). After the indicated culture period, bone samples were sonicated in PBS, stained with 20 μg/ml WGA-lectin (L3892; Sigma-Aldrich) for 45 min and then incubated with DAB tablets (D4418; Sigma-Aldrich) for 15 min. Image J software was used to quantify the resorbed area. The concentration of the CTX-I was measured using the CrossLaps for Culture CTX-I ELISA kit (AC-07F1; Immunodiagnostic Systems) according to the manufacturer’s instructions.
Antibodies, Anti-Idiotypic
Antibodies, Blocking
Biological Assay
Bone Resorption
Bones
Bos taurus
Cardiac Arrest
Compact Bone
Enzyme-Linked Immunosorbent Assay
Galactose Binding Lectin
Galectin 3
GCS-100
glutamyl-lysyl-alanyl-histidyl-aspartyl-glycyl-glycyl-arginine
Immunodiagnosis
Lectin
Macrophage Colony-Stimulating Factor
Osteoclasts
Pharmaceutical Preparations
Physiotens
TNFSF11 protein, human
WT- or Parkin−/−-derived macrophages (1 × 105 cells) were cultured on dentine slices for 24 h in α-MEM medium containing 30 ng/ml M-CSF and 10 ng/ml RANKL and further incubated for 7 days. The medium was then removed, and 1 M NH4OH was added to the wells for 30 min. Adherent cells were removed from the dentine slices by ultrasonication; the resorption areas were visualized by staining with 1% toluidine blue. The resorbed pit area on the dentine was then photographed using an image analysis system (NIS-Elements Imaging Software) linked to a light microscope (Nikon). For inflammatory IL-1β-induced OC bone resorption, WT or Parkin−/− OCPs primed with RANKL on a bone slice for 24 h were further incubated for 7 days in the presence of 10 ng/ml IL-1β, and the resorbed pit area sizes were evaluated, as described above. Resorption pit areas were quantified by ImageJ software.
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Bone Resorption
Bones
Cells
Dentin
Inflammation
Interleukin-1 beta
Interleukin-10
Light Microscopy
Macrophage
Macrophage Colony-Stimulating Factor
Ocular Cicatricial Pemphigoid
PARK2 protein, human
TNFSF11 protein, human
Tolonium Chloride
Top products related to «Bone Resorption»
Sourced in Japan, United States
The Bone Resorption Assay Kit is a laboratory tool used to measure the activity of osteoclasts, the cells responsible for bone resorption. The kit provides a standardized method to quantify the degradation of mineralized matrices, which is a key indicator of bone resorption.
Sourced in United States
Osteo Assay Surface plates are a type of cell culture labware designed for the study of bone-forming cells. They provide a specialized surface that supports the growth and differentiation of osteoblasts, the cells responsible for bone formation. These plates are a tool used in various research applications related to bone biology and development.
Sourced in United States, Netherlands, Czechia, Japan, Finland, Australia, Italy, United Kingdom
The Quanta 250 is a scanning electron microscope (SEM) designed for high-resolution imaging and analysis of a wide range of materials. It features a field emission gun (FEG) source, providing high-brightness electron beams for enhanced resolution and low-voltage imaging capabilities. The Quanta 250 offers versatile imaging modes, including secondary electron (SE), backscattered electron (BSE), and low-voltage imaging, enabling detailed surface and compositional analysis of samples.
Sourced in United States
The Osteo Assay Surface is a cell culture surface designed for the study of osteogenic differentiation. It provides a consistent and reproducible environment for the growth and analysis of cells involved in bone formation.
Sourced in United States, United Kingdom, China, Japan, Germany, Israel
RANKL is a recombinant protein produced in mammalian cells. It is a member of the tumor necrosis factor (TNF) ligand family and plays a key role in the regulation of bone remodeling and immune function.
Sourced in United Kingdom, United States
The RatLaps EIA is a laboratory equipment product designed to measure the levels of bone resorption markers in rat samples. It is an enzyme immunoassay used for the quantitative determination of the C-terminal telopeptide of type I collagen (CTX-I) in rat serum or plasma.
Sourced in United States, Germany, Sao Tome and Principe, Japan, United Kingdom
The Leukocyte acid phosphatase kit is a laboratory reagent designed to measure the activity of acid phosphatase enzyme in white blood cells (leukocytes). It provides a quantitative assessment of this enzyme, which is involved in cellular metabolism and can be used as an indicator of certain medical conditions.
Sourced in United States, China, United Kingdom, Germany, Australia, Japan, Canada, Italy, France, Switzerland, New Zealand, Brazil, Belgium, India, Spain, Israel, Austria, Poland, Ireland, Sweden, Macao, Netherlands, Denmark, Cameroon, Singapore, Portugal, Argentina, Holy See (Vatican City State), Morocco, Uruguay, Mexico, Thailand, Sao Tome and Principe, Hungary, Panama, Hong Kong, Norway, United Arab Emirates, Czechia, Russian Federation, Chile, Moldova, Republic of, Gabon, Palestine, State of, Saudi Arabia, Senegal
Fetal Bovine Serum (FBS) is a cell culture supplement derived from the blood of bovine fetuses. FBS provides a source of proteins, growth factors, and other components that support the growth and maintenance of various cell types in in vitro cell culture applications.
Sourced in United States, Japan, Germany, United Kingdom, Canada, China, Denmark
Image-Pro Plus is an image analysis software developed by Media Cybernetics. It provides tools for image acquisition, processing, measurement, and analysis.
More about "Bone Resorption"
Bone resorption is the physiological process of osteoclasts breaking down bone tissue, releasing minerals, matrix, and growth factors into the bloodstream.
This vital process is essential for maintaining and remodeling healthy bone structure.
Dysregulation of bone resorption can lead to conditions like osteoporosis, Paget's disease, and rheumatoid arthritis.
Researchers investigating bone resorption utilize various in vitro and in vivo models to study the underlying cellular and molecular mechanisms.
Optimizing these research protocols is crucial for enhancing the reproducibility and accuracy of findings in this important area of skeletal biology.
Bone resorption assay kits, such as Osteo Assay Surface plates, provide valuable tools for researchers to quantify and analyze osteoclast activity.
The Quanta 250 and Osteo Assay Surface platforms enable high-throughput screening and assessment of bone resorption.
RANKL, a key regulator of osteoclast differentiation, and the RatLaps EIA assay, which measures the C-terminal telopeptide of type I collagen, are important markers used in bone resorption studies.
The Leukocyte acid phosphatase kit helps identify and quantify osteoclasts, while fetal bovine serum (FBS) is commonly used in cell culture media to support osteoclast formation and function.
Image-Pro Plus software assists in the analysis and visualization of bone resorption data.
By leveraging these specialized tools and techniques, researchers can enhance the quality and reliability of their bone resorption research, ultimately contributing to a better understanding of skeletal health and disease.
This vital process is essential for maintaining and remodeling healthy bone structure.
Dysregulation of bone resorption can lead to conditions like osteoporosis, Paget's disease, and rheumatoid arthritis.
Researchers investigating bone resorption utilize various in vitro and in vivo models to study the underlying cellular and molecular mechanisms.
Optimizing these research protocols is crucial for enhancing the reproducibility and accuracy of findings in this important area of skeletal biology.
Bone resorption assay kits, such as Osteo Assay Surface plates, provide valuable tools for researchers to quantify and analyze osteoclast activity.
The Quanta 250 and Osteo Assay Surface platforms enable high-throughput screening and assessment of bone resorption.
RANKL, a key regulator of osteoclast differentiation, and the RatLaps EIA assay, which measures the C-terminal telopeptide of type I collagen, are important markers used in bone resorption studies.
The Leukocyte acid phosphatase kit helps identify and quantify osteoclasts, while fetal bovine serum (FBS) is commonly used in cell culture media to support osteoclast formation and function.
Image-Pro Plus software assists in the analysis and visualization of bone resorption data.
By leveraging these specialized tools and techniques, researchers can enhance the quality and reliability of their bone resorption research, ultimately contributing to a better understanding of skeletal health and disease.