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https://www.readbyqxmd.com/read/28229387/the-effects-of-cerium-valence-states-at-cerium-oxide-coatings-on-the-responses-of-bone-mesenchymal-stem-cells-and-macrophages
#1
Mingyu You, Kai Li, Youtao Xie, Liping Huang, Xuebin Zheng
Ideal orthopedic coatings should trigger good osteogenic response and limited inflammatory response. The cerium valence states in ceria are associated with their anti-oxidative activity and anti-inflammatory property. In the study, we prepared two kinds of plasma sprayed CeO2 coatings with different Ce(4+) concentrations to investigate the effects of Ce valence states on the response of bone mesenchymal stem cells (BMSCs) and macrophage RAW264.7. Both the coatings (CeO2-A and CeO2-B) were characterized via XRD, SEM, and X-ray photoelectron spectroscopy...
February 22, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28225019/trpv1-deletion-impaired-fracture-healing-and-inhibited-osteoclast-and-osteoblast-differentiation
#2
Lin-Hai He, Meng Liu, Yang He, E Xiao, Lu Zhao, Ting Zhang, Hua-Qian Yang, Yi Zhang
Fracture healing, in which osteoclasts and osteoblasts play important roles, has drawn much clinical attention. Osteoclast deficiency or decreased osteoblast activity will impair fracture healing. TRPV1 is a member of the Ca(2+) permeable cation channel subfamily, and pharmacological inhibition of TRPV1 prevents ovariectomy-induced bone loss, which makes TRPV1 a potential target for osteoporosis. However, whether long term TRPV1 inhibition or TRPV1 deletion will affect the fracture healing process is unclear...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28219791/full-title-bone-marrow-mesenchymal-stem-cells-conditioned-medium-enhances-vascular-remodeling-after-stroke-in-type-2-diabetic-rats
#3
Jie Xiang, Jinxia Hu, Tong Shen, Bin Liu, Fang Hua, Kun Zan, Jie Zu, Guiyun Cui, Xinchun Ye
Our previous studies have found that stem cells conditioned medium (CM) facilitated functional recovery after stroke in non-diabetics. However, whether bone marrow stromal cells conditioned medium (BMSCs-CM) treatment after stroke in type 2 diabetic (T2DM) rats improve functional outcomes remains unclear. T2DM rats were induced and subjected to stroke then treated with or without BMSCs-CM. Functional outcomes and blood-brain barrier (BBB) leakage were performed, the expression of Angiopoietin (Ang) 1 and tyrosine kinase (Tie) 2 were also assessed...
February 17, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28217215/the-bone-regeneration-using-bone-marrow-stromal-cells-with-moderate-concentration-platelet-rich-plasma-in-femoral-segmental-defect-of-rats
#4
Junichi Yamakawa, Junichi Hashimoto, Mitsuo Takano, Michiaki Takagi
BACKGROUND: Platelet-rich plasma (PRP) can provide an assortment of growth factors, but how PRP effects bone regeneration is still unknown. The aim of the study was to explore an optimal method of using PRP and bone marrow stromal cells (BMSCs). METHODS: An in vitro experiment was first conducted to determine an appropriate quantity of PRP. BMSCs were cultured with PRP of different concentrations to assess cell proliferation and osteogenic differentiation. Following the in vitro study, a rat femoral segmental defect model was used...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28216148/epigenetic-modification-of-the-ccl5-ccr1-erk-axis-enhances-glioma-targeting-in-dedifferentiation-reprogrammed-bmscs
#5
Rui Chen, Wayne Yuk-Wai Lee, Xiao Hu Zhang, Jie Ting Zhang, Sien Lin, Liang Liang Xu, Biao Huang, Fu Yuan Yang, Hai Long Liu, Bin Wang, Lai Ling Tsang, Sandrine Willaime-Morawek, Gang Li, Hsiao Chang Chan, Xiaohua Jiang
The success of stem cell-mediated gene therapy in cancer treatment largely depends on the specific homing ability of stem cells. We have previously demonstrated that after in vitro induction of neuronal differentiation and dedifferentiation, bone marrow stromal cells (BMSCs) revert to a primitive stem cell population (De-neu-BMSCs) distinct from naive BMSCs. We report here that De-neu-BMSCs express significantly higher levels of chemokines, and display enhanced homing abilities to glioma, the effect of which is mediated by the activated CCL5/CCR1/ERK axis...
February 9, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28215635/mechanical-stimulation-promote-the-osteogenic-differentiation-of-bone-marrow-stromal-cells-through-epigenetic-regulation-of-sonic-hedgehog
#6
Chuandong Wang, Shengzhou Shan, Chenglong Wang, Jing Wang, Jiao Li, Guoli Hu, Kerong Dai, Qingfeng Li, Xiaoling Zhang
Mechanical unloading leads to bone loss and disuse osteoporosis partly due to impaired osteoblastogenesis of bone marrow stromal cells (BMSCs). However, the underlying molecular mechanisms of this phenomenon are not fully understood. In this study, we demonstrated that cyclic mechanical stretch (CMS) promotes osteoblastogenesis of BMSCs both in vivo and in vitro. Besides, we found that Hedgehog (Hh) signaling pathway was activated in this process. Inhibition of which by either knockdown of Sonic hedgehog (Shh) or treating BMSCs with Hh inhibitors attenuated the osteogenic effect of CMS on BMSCs, suggesting that Hh signaling pathway acts as an endogenous mediator of mechanical stimuli on BMSCs...
February 16, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28214894/mechanical-loading-improves-tendon-bone-healing-in-a-rabbit-anterior-cruciate-ligament-reconstruction-model-by-promoting-proliferation-and-matrix-formation-of-mesenchymal-stem-cells-and-tendon-cells
#7
Fanglong Song, Dawei Jiang, Tianchen Wang, Yi Wang, Fengmei Chen, Guoxing Xu, Yifan Kang, Yinquan Zhang
BACKGROUND/AIMS: This study investigated the effect of mechanical stress on tendon-bone healing in a rabbit anterior cruciate ligament (ACL) reconstruction model as well as cell proliferation and matrix formation in co-culture of bone-marrow mesenchymal stem cells (BMSCs) and tendon cells (TCs). METHODS: The effect of continuous passive motion (CPM) therapy on tendon-bone healing in a rabbit ACL reconstruction model was evaluated by histological analysis, biomechanical testing and gene expressions at the tendon-bone interface...
February 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214835/up-regulation-of-tgf-%C3%AE-promotes-tendon-to-bone-healing-after-anterior-cruciate-ligament-reconstruction-using-bone-marrow-derived-mesenchymal-stem-cells-through-the-tgf-%C3%AE-mapk-signaling-pathway-in-a-new-zealand-white-rabbit-model
#8
Rui Wang, Bin Xu, Hong-Gang Xu
BACKGROUND/AIMS: This study aimed to explore the role of TGF-β in tendon-to-bone healing after anterior cruciate ligament (ACL) reconstruction using bone marrow-derived mesenchymal stem cells (BMSCs) through the TGF-β/MAPK signaling pathway in a New Zealand white rabbit model. METHODS: A total of 72 healthy male New Zealand white rabbits were selected for these experiments. Flow cytometry and immunofluorescence were used to detect the expression of BMSC surface markers, and qRT-PCR was performed to detect TGF-β mRNA expression...
January 20, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214341/angiopoietin-2-enhances-osteogenic-differentiation-of-bone-marrow-stem-cells
#9
Mi-Lan Kang, Eun-Ah Kim, Se-Young Jeong, Gun-Il Im
Our previous studies revealed that co-transplantation of bone marrow stem cells (BMSCs) and adipose-derived stem cells (ADSCs) can enhance bone regeneration and angiogenesis. However, it is unclear which genes are involved in the regulation of osteogenesis and/or angiogenesis during the co-culturing of BMSCs and ADSCs. The expression patterns of genes associated with osteogenesis and/or angiogenesis were analyzed in osteogenesis-induced BMSCs and ADSCs using an oligonucleotide microarray. Significant difference in the expression patterns of several genes were identified from hierarchical clustering and analyzed on co-cultured BMSCs and ADSCs...
February 18, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28211481/effects-of-strength-training-on-osteogenic-differentiation-and-bone-strength-in-aging-female-wistar-rats
#10
Monique Patricio Singulani, Camila Tami Stringhetta-Garcia, Leandro Figueiredo Santos, Samuel Rodrigues Lourenço Morais, Mário Jefferson Quirino Louzada, Sandra Helena Penha Oliveira, Antonio Hernandes Chaves Neto, Rita Cássia Menegati Dornelles
The effects of strength training (ST) on the mechanical bone strength and osteogenic differentiation of bone marrow mesenchymal stromal cells (BMSCs) from adult, aged and exercised aged rats were determined. The exercised aged animals displayed higher values of areal bone mineral density, compression test, alkaline phosphatase activity (ALP) and biological mineralization, while oil red O staining for adipocytes was lower. ST increased gene expression of runt-related transcription factor 2 (Runx2), osterix (Osx) as well as bone matrix protein expression, and reduced expression of peroxisome proliferator-activated receptor gamma (Pparγ)...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28204811/isopsoralen-mediated-suppression-of-bone-marrow-adiposity-and-attenuation-of-the-adipogenic-commitment-of-bone-marrow-derived-mesenchymal-stem-cells
#11
Jian Wang, Sheng-Fa Li, Ting Wang, Chun-Han Sun, Liang Wang, Min-Jun Huang, Jian Chen, Shao-Wei Zheng, Nan Wang, Ying-Jun Zhang, Tian-Yu Chen
Osteoporosis (OP) increases the risk of bone fractures and other complications, and is thus a major clinical problem. In this study, we examined the effect of isopsoralen on the differentiation of bone-derived marrow mesenchymal stem cells (BMSCs) into osteoblasts and adipocytes, as well as bone formation under osteoporotic conditions. Primary femoral BMSCs isolated from C57BL/6 mice were used to evaluate the isopsoralen-mediated regulation of the expression of alkaline phosphatase (ALP), osteocalcin (OCN) and runt-related transcription factor 2 (RUNX2) during osteogenesis 2 weeks...
March 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28201959/differentiation-potential-of-mesenchymal-stem-cells-derived-from-adipose-tissue-vs-bone-marrow-toward-annulus-fibrosus-cells-in-vitro
#12
Yifei Zhou, Xuqi Hu, Xuhao Zheng, Yaosen Wu, Naifeng Tian, Huazi Xu, Xiaolei Zhang
This study was to compare differentiation potential of bone marrow stem cells (BMSCs) and adipose-derived stem cells (ADSCs) from Sprague-Dawley rats towards annulus fibrosus (AF)-like cells. Using coculture plates with 0.4μm pore size polyethylene terephthalate (PET) track-etched inserts (Corning,USA), MSCs and AF cells were cocultured with direct cell-to-cell contact up till 21 days. We evaluated the AF markers expression at the histological level and molecular level. Quantitative reverse-transcription polymerase chain reaction (qRT-PCR) results showed up regulation in AF marker gene expressions of both two MSCs after coculture...
February 13, 2017: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28199140/role-of-bone-marrow-stromal-cells-in-impaired-bone-repair-from-bronj-osseous-lesions
#13
L H He, E Xiao, J G An, Y He, S Chen, L Zhao, T Zhang, Y Zhang
Treatment of bisphosphonate-related osteonecrosis of the jaw (BRONJ) has posed significant challenges to maxillofacial surgeons because of the poor repair of BRONJ bone defects. Moreover, the pathological mechanisms remain unclear. Bone marrow stromal cells (BMSCs) play key roles during bone repair and bone regeneration. However, the activities of BMSCs derived from BRONJ lesions and the BRONJ lesion boundary, as well as the roles of BMSCs in BRONJ defect repair, are poorly defined. In this study, we found that BMSCs from the central area of the osteonecrotic BRONJ region (center-BRONJ BMSCs) and the peripheral area at the recommended debridement boundary (peri-BRONJ BMSCs) had decreased proliferative ability, self-renewal capacity, and multidifferentiation capacities compared with control BMSCs...
February 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28198165/vascular-endothelial-growth-factor-transfected-adipose-derived-stromal-cells-enhance-bone-regeneration-and-neovascularization-from-bone-marrow-stromal-cells
#14
Mi-Lan Kang, Ji-Eun Kim, Gun-Il Im
Vascular endothelial growth factor (VEGF)-transfected adipose-derived stromal cells (ADSCs(VEGF) ) were devised to promote bone regeneration and neovascularization of bone marrow stromal cells (BMSCs). ADSCs(VEGF) were added to BMSCs and cocultured in variable proportions. ADSCs(VEGF) alone or ADSCs(VEGF) with BMSCs (BMSCs:ADSCs(VEGF) ratio of 1:0.025-0.5) induced significantly greater tube formation in human umbilical vein endothelial cells than untransfected ADSCs. The cocultures of BMSCs and ADSCs(VEGF) at ratios of 1: 0...
February 15, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28195183/interleukin-1%C3%AE-pre-treated-bone-marrow-stromal-cells-alleviate-neuropathic-pain-through-ccl7-mediated-inhibition-of-microglial-activation-in-the-spinal-cord
#15
Jian Li, Guoying Deng, Haowei Wang, Mei Yang, Rui Yang, Xiangnan Li, Xiaoping Zhang, Hongbin Yuan
Although neuropathic pain is one of the most intractable diseases, recent studies indicate that systemic or local injection of bone marrow stromal cells (BMSCs) decreases pro-inflammatory cytokines release and alleviates neuropathic pain. However, it is still not clear whether pre-treated BMSCs have a strong anti-inflammatory and/or analgesia effect. Using the spinal nerve ligation model of neuropathic pain, IL-1β pre-treated BMSCs (IL-1β-BMSCs) were injected into rats followed by SNL in order to determine possible effects...
February 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28191761/angiogenic-potential-of-human-bone-marrow-derived-mesenchymal-stem-cells-in-chondrocyte-brick-enriched-constructs-promoted-stable-regeneration-of-craniofacial-cartilage
#16
Zhiye Li, Ruikai Ba, Zhifa Wang, Jianhua Wei, Yimin Zhao, Wei Wu
Craniofacial deformities caused by congenital defects or trauma remain challenges for clinicians, whereas current surgical interventions present limited therapeutic outcomes. Injection of bone marrow-derived mesenchymal stem cells (BMSCs) into the defect is highly desirable because such a procedure is microinvasive and grafts are more flexible to fill the lesions. However, preventing hypertrophic transition and morphological contraction remain significant challenges. We have developed an "all host derived" cell transplantation system composed of chondrocyte brick (CB)-enriched platelet-rich plasma (P) gel and BMSCs (B)...
February 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28185033/stimulation-of-osteogenic-differentiation-by-saikosaponin-a-in-bone-marrow-stromal-cells-via-wnt-%C3%AE-catenin-pathway
#17
Weiqi Huang, Xiaoling Zheng, Xiaodong Yang, Shicai Fan
Saikosaponin-A (SA), a class of native compound with numerous biological activities, may exert protective effect against postmenopausal bone loss. However, it remains unknown whether SA regulates the osteogenic differentiation of bone marrow stromal cells (BMSCs) in the treatment and prevention of osteoporosis. In this study, BMSCs were treated with various concentrations of SA to stimulate osteogenic differentiation over a 14-day period. Additionally, a canonical ovariectomized (OVX) mouse model was used to evaluate the effect of 3-month SA treatment in preventing postmenopausal osteoporosis...
February 9, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28183645/synthesis-of-e7-peptide-modified-biodegradable-polyester-with-the-improving-affinity-to-mesenchymal-stem-cells
#18
Qian Li, Dongming Xing, Lie Ma, Changyou Gao
As the most promising stem cell, bone marrow-derived mesenchymal stem cells (BMSCs) has attracted many attentions and applied widely in regenerative medicine. A biodegradable polyester with tunable affinity to BMSCs plays critical role in determining the properties of the BMSCs-based constructs. In this study, maleimide functionalized biodegradable polyester (P(MTMC-LA)) was synthesized through ring-opening copolymerization between l-lactide (LA) and furan-maleimide functionalized trimethylene carbonate (FMTMC) and a subsequent retro Diels-Alder reaction...
April 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28178294/histological-observation-of-a-gelatin-sponge-transplant-loaded-with-bone-marrow-derived-mesenchymal-stem-cells-combined-with-platelet-rich-plasma-in-repairing-an-annulus-defect
#19
Xiang Xu, Jianzhong Hu, Hongbin Lu
OBJECTIVE: To research the histological characteristics of a gelatin sponge transplant loaded with goat BMSCs (bone marrow-derived mesenchymal stem cells) combined with PRP (platelet-rich plasma) in repairing an annulus defect. METHOD: BMSCs were separated from the iliac crest of goats, sub-cultured and identified after the third generation. Then, PRP was obtained using blood from the jugular vein of goats via two degrees of centrifugation. In the animal experiments, the goats were divided into the following three groups: a sham group, an injury group and a therapeutic group...
2017: PloS One
https://www.readbyqxmd.com/read/28176491/cells-responding-to-surface-structure-of-calcium-phosphate-ceramics-for-bone-regeneration
#20
Jingwei Zhang, Lanying Sun, Xiaoman Luo, Davide Barbieri, Joost D de Bruijn, Clemens A van Blitterswijk, Lorenzo Moroni, Huipin Yuan
Surface structure largely affects the inductive bone-forming potential of calcium phosphate (CaP) ceramics in ectopic sites and bone regeneration in critical-sized bone defects. Surface-dependent osteogenic differentiation of bone marrow stromal cells (BMSCs) partially explained the improved bone-forming ability of submicron surface structured CaP ceramics. In this study, we investigated the possible influence of surface structure on different bone-related cells, which may potentially participate in the process of improved bone formation in CaP ceramics...
February 8, 2017: Journal of Tissue Engineering and Regenerative Medicine
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