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chondrogenesis

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https://www.readbyqxmd.com/read/29223037/a-microfabricated-platform-for-the-study-of-chondrogenesis-under-different-compressive-loads
#1
Reza Kowsari-Esfahan, Azadeh Jahanbakhsh, Mohammad Said Saidi, Shahin Bonakdar
Microfluidic devices are beneficial in miniaturizing and multiplexing various cellular assays in a single platform. Chondrogenesis is known to pertain to chemical, topographical, and mechanical cues in the microenvironment. Mechanical cues themselves have numerous parameters such as strain magnitude, frequency, and stimulation time. Effects of different strain magnitudes on the chondrogenic differentiation of adult stem cells have not been explored thoroughly. Here, a new multilayer microdevice is presented for the unidirectional compressive stimulation of cells in a three-dimensional cell culture...
December 5, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29214313/rna-sequencing-gene-expression-profiling-of-orbital-adipose-derived-stem-cell-population-implicate-hox-genes-and-wnt-signaling-dysregulation-in-the-pathogenesis-of-thyroid-associated-orbitopathy
#2
Wensi Tao, Juan A Ayala-Haedo, Matthew G Field, Daniel Pelaez, Sara T Wester
Purpose: The purpose of this study was to characterize the intrinsic cellular properties of orbital adipose-derived stem cells (OASC) from patients with thyroid-associated orbitopathy (TAO) and healthy controls. Methods: Orbital adipose tissue was collected from a total of nine patients: four controls and five patients with TAO. Isolated OASC were characterized with mesenchymal stem cell-specific markers. Orbital adipose-derived stem cells were differentiated into three lineages: chondrocytes, osteocytes, and adipocytes...
December 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29214232/hybrid-protein-glycosaminoglycan-hydrogels-promote-chondrogenic-stem-cell-differentiation
#3
Vladimíra Moulisová, Sara Poveda-Reyes, Esther Sanmartín-Masiá, Luis Quintanilla-Sierra, Manuel Salmerón-Sánchez, Gloria Gallego Ferrer
Gelatin-hyaluronic acid (Gel-HA) hybrid hydrogels have been proposed as matrices for tissue engineering because of their ability to mimic the architecture of the extracellular matrix. Our aim was to explore whether tyramine conjugates of Gel and HA, producing injectable hydrogels, are able to induce a particular phenotype of encapsulated human mesenchymal stem cells without the need for growth factors. While pure Gel allowed good cell adhesion without remarkable differentiation and pure HA triggered chondrogenic differentiation without cell spreading, the hybrids, especially those rich in HA, promoted chondrogenic differentiation as well as cell proliferation and adhesion...
November 30, 2017: ACS Omega
https://www.readbyqxmd.com/read/29214173/fabrication-and-in-vitro-study-of-tissue-engineered-cartilage-scaffold-derived-from-wharton-s-jelly-extracellular-matrix
#4
Tongguang Xiao, Weimin Guo, Mingxue Chen, Chunxiang Hao, Shuang Gao, Jingxiang Huang, Zhiguo Yuan, Yu Zhang, Mingjie Wang, Penghao Li, Jiang Peng, Aiyuan Wang, Yu Wang, Xiang Sui, Li Zhang, Wenjing Xu, Shibi Lu, Heyong Yin, Jianhua Yang, Shuyun Liu, Quanyi Guo
The scaffold is a key element in cartilage tissue engineering. The components of Wharton's jelly are similar to those of articular cartilage and it also contains some chondrogenic growth factors, such as insulin-like growth factor I and transforming growth factor-β. We fabricated a tissue-engineered cartilage scaffold derived from Wharton's jelly extracellular matrix (WJECM) and compared it with a scaffold derived from articular cartilage ECM (ACECM) using freeze-drying. The results demonstrated that both WJECM and ACECM scaffolds possessed favorable pore sizes and porosities; moreover, they showed good water uptake ratios and compressive moduli...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29211452/promoted-chondrogenesis-of-co-cultured-chondrocytes-and-mesenchymal-stem-cells-under-hypoxia-using-in-situ-forming-degradable-hydrogel-scaffolds
#5
Xiaobin Huang, Yong Hou, Leilei Zhong, Dechun Huang, Hongliang Qian, Marcel Karperien, Wei Chen
We investigated the effects of different oxygen tension (21% and 2.5% O2) on the chondrogenesis of different cell systems cultured in pH-degradable PVA hydrogels including human articular chondrocytes (hACs), human mesenchymal stem cells (hMSCs) and their co-cultures with a hAC/hMSC ratio of 20/80. These hydrogels were prepared with vinyl ether acrylate-functionalized PVA (PVA-VEA) and thiolated PVA-VEA (PVA-VEA-SH) via Michael-type addition reaction. The rheology tests determined the gelation of the hydrogels was controlled within 2-7 min dependent on the polymer concentrations...
December 6, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/29208029/tissue-source-determines-the-differentiation-potentials-of-mesenchymal-stem-cells-a-comparative-study-of-human-mesenchymal-stem-cells-from-bone-marrow-and-adipose-tissue
#6
Liangliang Xu, Yamei Liu, Yuxin Sun, Bin Wang, Yunpu Xiong, Weiping Lin, Qiushi Wei, Haibin Wang, Wei He, Bin Wang, Gang Li
BACKGROUND: Mesenchymal stem cells (MSCs) possess intrinsic regeneration capacity as part of the repair process in response to injury, such as fracture or other tissue injury. Bone marrow and adipose tissue are the major sources of MSCs. However, which cell type is more effective and suitable for cell therapy remains to be answered. The intrinsic molecular mechanism supporting the assertion has also been lacking. METHODS: Human bone marrow-derived MSCs (BMSCs) and adipose tissue-derived MSCs (ATSCs) were isolated from bone marrow and adipose tissue obtained after total hip arthroplasty...
December 6, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29207140/platelet-rich-plasma-inhibits-rankl-induced-osteoclast-differentiation-through-activation-of-wnt-pathway-during-bone-remodeling
#7
Dongyue Wang, Yajuan Weng, Shuyu Guo, Yuxin Zhang, Tingting Zhou, Mengnan Zhang, Lin Wang, Junqing Ma
Platelet-rich plasma (PRP) is used in the clinic as an autologous blood product to stimulate bone regeneration and chondrogenesis. Numerous studies have demonstrated that PRP affects bone remodeling by accelerating osteoblast formation. With the research perspective focusing on osteoclasts, the present study established a mouse model of mandibular advancement to examine the effect of PRP on osteoclast differentiation induced by modification of the dynamics of the temporomandibular joint (TMJ). The lower incisors of the mice were trimmed by 1 mm and the resultant change in mandibular position during the process of eating induced condylar adaptation to this change...
November 16, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29206625/effect-of-mir-204-211-and-runx2-control-on-the-fate-of-human-mesenchymal-stromal-cells
#8
Benedetto Sacchetti, Alessandro Fatica, Melissa Sorci, Antonio Sorrentino, Michele Signore, Annamaria Cerio, Federica Felicetti, Alessandra De Feo, Elvira Pelosi, Alessandra Caré, Edoardo Pescarmona, Jan Oxholm Gordeladze, Mauro Valtieri
MiR-204 and 211 enforced expression in murine mesenchymal stromal cells (MSCs) has been shown to induce adipogenesis and impair osteogenesis, through RUNX2 down-modulation. This mechanism has been suggested to play a role in osteoporosis associated with obesity. However, two further fundamental MSC functions, chondrogenesis and hematopoietic supporting activity, have not yet been explored. To this end, we transduced, by a lenti-viral vector, miR-204 and 211 in a model primary human MSC line, opportunely chosen among our MSC collection for displaying all properties of canonical bone marrow MSCs, except adipogenesis...
2017: Regenerative Medicine Research
https://www.readbyqxmd.com/read/29203122/inducing-chondrogenesis-in-msc-chondrocyte-co-cultures-using-exogenous-tgf-%C3%AE-a-mathematical-model
#9
Chen M J, Whiteley J P, Please C P, Schwab A, Ehlicke F, Waters S L, Byrne H M
The differentiation of mesenchymal stem cells (MSCs) into chondrocytes (native cartilage cells), or chondrogenesis, is a key step in the tissue engineering of articular cartilage, where the motility and high proliferation rate of MSCs used as seed cells are exploited. Chondrogenesis is regulated by transforming growth factor-beta (TGF-β), a short-lived cytokine whose effect is prolonged by storage in the extracellular matrix. Tissue engineering applications require the complete differentiation of an initial population of MSCs, and two common strategies used to achieve this in vitro are (1) co-culture the MSCs with chondrocytes, which constitutively produce TGF-β; or (2) add exogenous TGF-β...
December 1, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/29202812/celastrol-improves-self-renewal-and-differentiation-of-human-tendon-derived-stem-cells-by-suppressing-smad7-through-hypoxia
#10
Tianyi Wu, Shenghe Liu, Gen Wen, Jia Xu, Yaling Yu, Yimin Chai
BACKGROUND: We aimed to evaluate the potential enhancing effect of celastrol on the stemness of human tendon-derived stem cells (hTSCs) in vitro and the underlying molecular mechanisms. METHODS: The capability of hTSC self-renewal was assessed by cell proliferation and colony formation as determined with the CCK-8 kit. Adipogenesis, chondrogenesis, and osteogenesis were determined by Oil Red O, Alcian Blue, and Alizarin Red staining, respectively. The relative mRNA levels of Sox9, PPARγ, Runx2, Smad7, and HIF1α were determined by real-time polymerase chain reaction (PCR)...
December 4, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29201201/spatial-and-temporal-expression-of-smad-signaling-members-during-the-development-of-mandibular-condylar-cartilage
#11
Di Xiao, Ru Wang, Jing Hu, Huixin Quan
The present study aimed to explore the underlying developmental mechanism of mothers against decapentaplegic homolog (Smad) signaling in the development of mandibular condylar cartilage. To achieve this, the expression levels of Smad2, 3, 4 and 7, and phosphorylated Smad2/3 were investigated at different time points in developing mandibular condylar cartilage. Mandibular condyles from C57BL/6J mice were dissected at the prenatal and postnatal stages. Serial sections were made and the distributions of Smad proteins were examined using immunohistochemical techniques intermittently between day 14...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29198711/effects-of-connective-tissue-growth-factor-ctgf-ccn2-on-condylar-chondrocyte-proliferation-migration-maturation-differentiation-and-signalling-pathway
#12
Xin Xing, Zhi Li, Zili Yu, Gu Cheng, Dianqi Li, Zubing Li
CCN2, also known as connective tissue growth factor (CTGF), is a 38 kDa cysteine-rich extracellular matrix protein that regulates a sequence of cellular functions and participates in multiple complex biological processes, such as chondrogenesis and osteogenesis. In the present study, we provided the first evidence describing the physiological role of CCN2 in condylar chondrocyte proliferation, migration, maturation and differentiation. CCN2 was widely expressed throughout the whole layers of condylar cartilage and predominantly distributed in the proliferative zone...
November 30, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29198125/comparison-between-the-effect-of-kartogenin-and-tgf%C3%AE-3-on-chondrogenesis-of-human-adipose-derived-stem-cells-in-fibrin-scaffold
#13
A Valiani, M A Izadi, H Bahramian, E Esfandiari, B Hashemibeni
BACKGROUND: Due to very sluggish turnover at the molecular and cellular level, the healing of chondral damages has been considered difficult. In the current study, the effects of the Kartogenin, a small heterocyclic molecule on chondrogenic differentiation of stem cells was compared to TGF-β3. METHODS: Human Adipose-Derived Stem Cells were extracted during an elective surgery. Cell viability was estimated by MTT assay, differentiated cells evaluated by histological and immunohistochemical techniques...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/29197591/enhanced-chondrogenesis-of-human-bone-marrow-mesenchymal-stem-cell-bmsc-on-nanofiber-based-polyethersulfone-pes-scaffold
#14
Hossein Mahboudi, Bahram Kazemi, Masoud Soleimani, Hana Hanaee-Ahvaz, Hossein Ghanbarian, Mojgan Bandehpour, Seyed Ehsan Enderami, Mousa Kehtari, Ghasem Barati
Mesenchymal stem cells (MSC) from bone marrow hold great potential as a cell source for cartilage repair. The objective of our study was differentiation of MSC toward chondrocyte by using Nanofiber-based polyethersulfone (PES) scaffold and also enhanced chondrogenic differentiation of BMSC in vitro. MSCs were harvested from bone marrow of human and PES scaffold was fabricated via Electrospinning. The isolated cells were cultured on the PES scaffold and scaffold free method. After 21days, Real-time PCR was performed to evaluate the cartilage-specific genes in the mRNA levels...
November 29, 2017: Gene
https://www.readbyqxmd.com/read/29196933/osmolyte-type-and-the-osmolarity-level-affect-chondrogenesis-of-mesenchymal-stem-cells
#15
Sorour Ahmadyan, Mahboubeh Kabiri, Hana Hanaee-Ahvaz, Ali Farazmand
The inductive effects of increased osmolarity on chondrogenesis are well approved. However, the effects of the osmolyte agent invoked to induce hyperosmolarity are largely neglected. Herein, we scrutinized how hyperosmotic conditions acquired by addition of different osmolytes would impact chondrogenesis. We briefly assessed whether such conditions would differentially affect hypertrophy and angiogenesis during MSC chondrogenesis. Chondrogenic and hypertrophic marker expression along with VEGF secretion during adipose-derived (AD)-MSC chondrogenesis under three osmolarity levels (350, 450, and 550 mOsm) using three different osmolytes (NaCl, sorbitol, and PEG) were assessed...
November 10, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/29196500/reduced-prostaglandin-i2-signaling-in-arid5b-primary-skeletal-muscle-cells-attenuates-myogenesis
#16
Jennifer Murray, Robert H Whitson, Keiichi Itakura
The AT-rich interaction domain (ARID) family of proteins regulates gene expression, development, and differentiation. Although Arid5b has important functions in adipogenesis and chondrogenesis, the role of Arid5b in skeletal muscle myogenesis has not been investigated. Therefore, we isolated primary skeletal muscle cells from Arid5b+/+ and Arid5b-/- mice and characterized differentiation in these cells. We found that Arid5b-/- primary skeletal muscle cells showed differentiation defects and impaired sarcomeric assembly...
December 1, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29185790/sox9-functions-as-a-master-regulator-of-antler-growth-by-controlling-multiple-cell-lineages
#17
Baojin Yao, Mei Zhang, Meichen Liu, Qun Wang, Meixin Liu, Yu Zhao
Deer antlers are amazing natural appendages that grow faster than any other known mammalian bone. Antler growth occurs at the tip and is initially cartilage, which is later replaced by bone tissue. However, little is known regarding the precise role of cooperation between cell lineages and functional genes in regulating antler growth, and molecular mechanisms responsible for rapid growth remain elusive. In this study, we use an RNA-Seq approach to elucidate the full spectrum of cell lineages, functional genes, and their cooperative interactions during antler growth...
November 29, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/29180569/the-skeletal-phenotype-of-achondrogenesis-type-1a-is-caused-exclusively-by-cartilage-defects
#18
Ian M Bird, Susie H Kim, Devin K Schweppe, Joana Caetano-Lopes, Alexander G Robling, Julia F Charles, Steven P Gygi, Matthew L Warman, Patrick J Smits
Inactivating mutations in the ubiquitously expressed membrane trafficking component GMAP-210 (encoded by Trip11) cause Achondrogenesis type 1A (ACG1A). ACG1A is surprisingly tissue specific, mainly affecting cartilage development. Bone development is also abnormal, but since chondrogenesis and osteogenesis are closely coupled, this could be a secondary consequence of the cartilage defect. A possible explanation for the tissue specificity of ACG1A is that cartilage and bone are highly secretory tissues with a high usage of the membrane trafficking machinery...
November 27, 2017: Development
https://www.readbyqxmd.com/read/29178320/low-oxygen-conditions-promote-synergistic-increases-in-chondrogenesis-during-co-culture-of-human-osteoarthritic-stem-cells-and-chondrocytes
#19
Susan E Critchley, Rajalakshmanan Eswaramoorthy, Daniel J Kelly
There has been increased interest in co-cultures of stem cells and chondrocytes for cartilage tissue engineering as there are the limitations associated with using either cell type alone. Drawbacks associated with the use of chondrocytes include the limited numbers of cells available for isolation from damaged or diseased joints, their dedifferentiation during in vitro expansion and a diminished capacity to synthesise cartilage-specific extracellular matrix components with age and disease. This has motivated the use of adult stem cells with either freshly isolated or culture expanded chondrocytes for cartilage repair applications, however the ideal combination of cells and environmental conditions for promoting robust chondrogenesis remains unclear...
November 26, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29174671/human-igf-i-propeptide-a-promotes-articular-chondrocyte-biosynthesis-and-employs-glycosylation-dependent-heparin-binding
#20
Shuiliang Shi, Brian J Kelly, Congrong Wang, Ken Klingler, Albert Chan, George J Eckert, Stephen B Trippel
BACKGROUND: Insulin-like growth factor I (IGF-I) is a key regulator of chondrogenesis, but its therapeutic application to articular cartilage damage is limited by rapid elimination from the repair site. The human IGF-I gene gives rise to three IGF-I propeptides (proIGF-IA, proIGF-IB and proIGF-IC) that are cleaved to create mature IGF-I. In this study, we elucidate the processing of IGF-I precursors by articular chondrocytes, and test the hypotheses that proIGF-I isoforms bind to heparin and regulate articular chondrocyte biosynthesis...
November 21, 2017: Biochimica et Biophysica Acta
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