Abstract:
AIMS:This study aimed to investigate the effect of solute carrier family 20 member 2 (SLC20A2) gene mutation (identified from a hereditary multiple exostoses family) on chondrocyte proliferation and differentiation. METHODS:ATDC5 chondrocytes were cultured in insulin-transferrin-selenium medium to induce differentiation. Cells were transfected with pcDNA3.0 plasmids with either a wild-type (WT) or mutated (MUT) SLC20A2 gene. The inorganic phosphate (Pi) concentration in the medium of cells was determined. The expression of markers of chondrocyte proliferation and differentiation, the Indian hedgehog (Ihh), and parathyroid hormone-related protein (PTHrP) pathway were evaluated by quantitative real-time polymerase chain reaction (qRT-PCR) and western blotting. RESULTS:The expression of SLC20A2 in MUT group was similar to WT group. The Pi concentration in the medium of cells in MUT group was significantly higher than WT group, which meant the SLC20A2 mutation inhibited Pi uptake in ATDC5 chondrocytes. The proliferation rate of ATDC5 chondrocytes in MUT group was greater than WT group. The expression of aggrecan (Acan), α-1 chain of type II collagen (COL2A1), and SRY-box transcription factor 9 (SOX9) were higher in MUT group than WT group. However, the expression of Runt-related transcription factor 2 (Runx2), α-1 chain of type X collagen (COL10A1), and matrix metallopeptidase 13 (MMP13) was significantly decreased in the MUT group. Similar results were obtained by Alcian blue and Alizarin red staining. The expression of Ihh and PTHrP in MUT group was higher than WT group. An inhibitor (cyclopamine) of Ihh/PTHrP signalling pathway inhibited the proliferation and restored the differentiation of chondrocytes in MUT group. CONCLUSION:A mutation in SLC20A2 (c.C1948T) decreases Pi uptake in ATDC5 chondrocytes. SLC20A2 mutation promotes chondrocyte proliferation while inhibiting chondrocyte differentiation. The Ihh/PTHrP signalling pathway may play an important role in this process. Cite this article: Bone Joint Res 2020;9(11):751-760.
journal_name
Bone Joint Resjournal_title
Bone & joint researchauthors
Li Y,Lin X,Zhu M,Xun F,Li J,Yuan Z,Liu Y,Xu Hdoi
10.1302/2046-3758.911.BJR-2020-0112.R1subject
Has Abstractpub_date
2020-11-01 00:00:00pages
751-760issue
11issn
2046-3758journal_volume
9pub_type
杂志文章abstract:OBJECTIVES:Small animal models of fracture repair primarily investigate indirect fracture healing via external callus formation. We present the first described rat model of direct fracture healing. METHODS:A rat tibial osteotomy was created and fixed with compression plating similar to that used in patients. The proce...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.111.2000087
更新日期:2012-11-01 00:00:00
abstract:AIMS:The study aimed to determine whether the microRNA miR21-5p (MiR21) mediates temporomandibular joint osteoarthritis (TMJ-OA) by targeting growth differentiation factor 5 (Gdf5). METHODS:TMJ-OA was induced in MiR21 knockout (KO) mice and wild-type (WT) mice by a unilateral anterior crossbite (UAC) procedure. Mouse ...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.910.BJR-2020-0140.R1
更新日期:2020-10-01 00:00:00
abstract:OBJECTIVES:The number of surgical procedures performed each year to treat femoroacetabular impingement (FAI) continues to rise. Although there is evidence that surgery can improve symptoms in the short-term, there is no evidence that it slows the development of osteoarthritis (OA). We performed a feasibility study to d...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.22.2000137
更新日期:2013-02-01 00:00:00
abstract:Objectives:The paradoxical migration of the femoral neck element (FNE) superomedially against gravity, with respect to the intramedullary component of the cephalomedullary device, is a poorly understood phenomenon increasingly seen in the management of pertrochanteric hip fractures with the intramedullary nail. The aim...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.87.BJR-2018-0271.R1
更新日期:2019-08-02 00:00:00
abstract:OBJECTIVES:To investigate the differences of open reduction and internal fixation (ORIF) of complex AO Type C distal radius fractures between two different models of a single implant type. METHODS:A total of 136 patients who received either a 2.4 mm (n = 61) or 3.5 mm (n = 75) distal radius locking compression plate (...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.16.2000008
更新日期:2012-06-01 00:00:00
abstract:OBJECTIVES:Microindentation has the potential to measure the stiffness of an individual patient's bone. Bone stiffness plays a crucial role in the press-fit stability of orthopaedic implants. Arming surgeons with accurate bone stiffness information may reduce surgical complications including periprosthetic fractures. T...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.69.BJR-2016-0317.R2
更新日期:2017-09-01 00:00:00
abstract:Objectives:We studied subchondral intraosseous pressure (IOP) in an animal model during loading, and with vascular occlusion. We explored bone compartmentalization by saline injection. Materials and Methods:Needles were placed in the femoral condyle and proximal tibia of five anaesthetized rabbits and connected to pre...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.78.BJR-2017-0343.R2
更新日期:2018-09-15 00:00:00
abstract:Objectives:Different criteria for assessing the reduction quality of trochanteric fractures have been reported. The Baumgaertner reduction quality criteria (BRQC) are relatively common and the Chang reduction quality criteria (CRQC) are relatively new. The objectives of the current study were to compare the reliability...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.810.BJR-2019-0032.R1
更新日期:2019-11-02 00:00:00
abstract::Bone is one of the most highly adaptive tissues in the body, possessing the capability to alter its morphology and function in response to stimuli in its surrounding environment. The ability of bone to sense and convert external mechanical stimuli into a biochemical response, which ultimately alters the phenotype and ...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.91.BJR-2019-0043.R2
更新日期:2020-05-16 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.73.BJR-2017-0193.R1
更新日期:2018-05-05 00:00:00
abstract:OBJECTIVES:Local corticosteroid infiltration is a common practice of treatment for lateral epicondylitis. In recent studies no statistically significant or clinically relevant results in favour of corticosteroid injections were found. The injection of autologous blood has been reported to be effective for both intermed...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.18.2000095
更新日期:2012-08-01 00:00:00
abstract::The treatment of osteochondral lesions and osteoarthritis remains an ongoing clinical challenge in orthopaedics. This review examines the current research in the fields of cartilage regeneration, osteochondral defect treatment, and biological joint resurfacing, and reports on the results of clinical and pre-clinical s...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.29.2000189
更新日期:2013-09-16 00:00:00
abstract:OBJECTIVES:We aimed to determine the effect of surgical approach on the histology of the femoral head following resurfacing of the hip. METHODS:We performed a histological assessment of the bone under the femoral component taken from retrieval specimens of patients having revision surgery following resurfacing of the ...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.29.2000179
更新日期:2013-09-18 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.29.2000196
更新日期:2013-09-10 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.311.2000313
更新日期:2014-11-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.94.BJR-2019-0274.R1
更新日期:2020-05-16 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.82.BJR-2018-0174.R2
更新日期:2019-03-02 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.65.BJR-2016-0192.R1
更新日期:2017-05-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.101.BJR-2020-0229.R1
更新日期:2021-01-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.83.BJR-2018-0049.R1
更新日期:2019-04-02 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
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更新日期:2012-04-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.211.2000206
更新日期:2013-11-27 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.29.2000176
更新日期:2013-09-02 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.610.BJR-2017-0094.R1
更新日期:2017-10-01 00:00:00
abstract:OBJECTIVES:To assess the structure and extracellular matrix molecule expression of osteogenic cell sheets created via culture in medium with both dexamethasone (Dex) and ascorbic acid phosphate (AscP) compared either Dex or AscP alone. METHODS:Osteogenic cell sheets were prepared by culturing rat bone marrow stromal c...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.511.BJR-2016-0013.R1
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVES:A patient-centred approach, usually achieved through shared decision making, has the potential to help improve decision making around knee arthroplasty surgery. However, such an approach requires an understanding of the factors involved in patient decision making. This review's objective is to systematically...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.410.2000420
更新日期:2015-10-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.33.2000250
更新日期:2014-03-19 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.811.BJR-2019-0103.R1
更新日期:2019-12-03 00:00:00
abstract:OBJECTIVES:Pedicle-lengthening osteotomy is a novel surgery for lumbar spinal stenosis (LSS), which achieves substantial enlargement of the spinal canal by expansion of the bilateral pedicle osteotomy sites. Few studies have evaluated the impact of this new surgery on spinal canal volume (SCV) and neural foramen dimens...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.56.2000469
更新日期:2016-06-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.34.2000238
更新日期:2014-04-02 00:00:00