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https://www.readbyqxmd.com/read/28339498/enhancement-of-osteogenic-differentiation-of-rat-adipose-tissue-derived-mesenchymal-stem-cells-by-zinc-sulphate-under-electromagnetic-field-via-the-pka-erk1-2-and-wnt-%C3%AE-catenin-signaling-pathways
#1
Ezzatollah Fathi, Raheleh Farahzadi
Zinc ion as an essential trace element and electromagnetic fields (EMFs) has been reported to be involved in the regulation of bone metabolism. The aim of this study was to elucidate the effects of zinc sulphate (ZnSO4) on the osteogenic differentiation of adipose tissue-derived mesenchymal stem cells (ADSCs) in the presence of EMF as a strategy in osteoporosis therapy. Alkaline phophatase (ALP) activity measurement, calcium assay and expression of several osteoblastic marker genes were examined to assess the effect of ZnSO4 on the osteogenic differentiation of ADSCs under EMF...
2017: PloS One
https://www.readbyqxmd.com/read/28336375/tumortropic-adipose-derived-stem-cells-carrying-smart-nanotherapeutics-for-targeted-delivery-and-dual-modality-therapy-of-orthotopic-glioblastoma
#2
Wen-Chia Huang, I-Lin Lu, Wen-Hsuan Chiang, Yi-Wen Lin, Yuan-Chung Tsai, Hsin-Hung Chen, Chien-Wen Chang, Chi-Shiun Chiang, Hsin-Cheng Chiu
Chemotherapy is typically used to treat malignant brain tumors, especially for the tumors in surgically inaccessible areas. However, owing to the existence of blood-brain barrier (BBB), the tumor accumulation and therapeutic efficacy of clinical therapeutics is still of great concerns. To this end, we present herein a prominent therapeutic strategy adopting adipose-derived stem cells (ADSCs) capable of carrying nanotherapeutic payloads selectively toward brain tumors for thermo/chemotherapy. The nanoparticle (NP) payload was obtained from co-assembly of poly(γ-glutamic acid-co-distearyl γ-glutamate) with poly(lactic-co-glycolic acid), paclitaxel (PTX), and oleic acid-coated superparamagnetic iron oxide NPs in aqueous solution...
March 20, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28326727/-development-and-characterization-of-oriented-scaffolds-derived-from-cartilage-extracellular-matrix
#3
Li Kun, Zhao Yanhong, Xu Chen, Wang Lianyong, Yang Qiang, Li Hongfa, Teng Binhong
OBJECTIVE: This study aimed to prepare oriented scaffolds derived from a cartilage extracellular matrix (CECM) and to investigate their physicochemical property and compatibility with adipose-derived stem cells (ADSCs). METHODS: A fresh porcine articular cartilage was cut into pieces. Cartilage nanofibers with diameters of 50-500 nm were collected through homogenization and centrifugation. These nanofibers were then decellularized by using Triton X-100 to produce 6% CECM...
February 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28316169/-advances-in-the-research-of-basic-study-and-clinical-application-of-adipose-derived-mesenchymal-stem-cells
#4
S J Cao, L F Wang, T Ba, Z D Rong, G L Hu, B Zhou, Q Li
Since the discovery of adipose-derived mesenchymal stem cell (ADSC) in more than ten years, a great progress has been made from its basic research to clinical application. Compared with bone marrow mesenchymal stem cells, ADSCs are more abundant in reserve, easier to obtain with fewer injuries and less complications. These cells have multiple differentiation potential and can differentiate into adipocytes, chondrocytes and osteoblasts with the influence of different inducing factors. Early studies of ADSCs mainly focused on the ability of multi-directional differentiation, espe-cially on the regeneration of bone defects and cartilage tissue...
March 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28303247/effect-of-wnt-signaling-on-the-differentiation-of-islet-%C3%AE-cells-from-adipose-derived-stem-cells
#5
Hefei Wang, Yu Ren, Xiao Hu, Min Ma, Xiao Wang, Hao Liang, Dongjun Liu
The Wnt signaling is critical for pancreatic development and islet function; however, its precise effects on the development and function of the β-cells remain controversial. Here we examined mRNA and protein expression of components of the Wnt signaling throughout the differentiation of islet β-cells from adipose-derived stem cells (ADSCs). After induction, ADSCs expressed markers of β-cells, including the insulin, PDX1, and glucagon genes, and the PDX1, CK19, nestin, insulin, and C-peptide proteins, indicating their successful differentiation...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28303154/mesenchymal-stem-cell-administration-in-patients-with-chronic-obstructive-pulmonary-disease-state-of-the-science
#6
REVIEW
Shih-Lung Cheng, Ching-Hsiung Lin, Chao-Ling Yao
Patients with chronic obstructive pulmonary disease (COPD) have chronic, irreversible airway inflammation; currently, there is no effective or curative treatment and the main goals of COPD management are to mitigate symptoms and improve patients' quality of life. Stem cell based therapy offers a promising therapeutic approach that has shown potential in diverse degenerative lung diseases. Preclinical studies have demonstrated encouraging outcomes of mesenchymal stem/stromal cells (MSCs) therapy for lung disorders including emphysema, bronchopulmonary dysplasia, fibrosis, and acute respiratory distress syndrome...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28296571/efficient-generation-of-functional-schwann-cells-from-adipose-derived-stem-cells-in-defined-conditions
#7
Songtao Xie, Fan Lu, Juntao Han, Ke Tao, Hongtao Wang, Alfred Simental, Dahai Hu, Hao Yang
Schwann cells (SCs) are hitherto regarded as the most promising candidates for viable cell-based therapy to peripheral nervous system (PNS) injuries or degenerative diseases. However, the extreme drawbacks of transplanting autologous SCs for clinical applications still represent a significant bottleneck in neural regenerative medicine, mainly owing to the need of sacrificing a functional nerve to generate autologous SCs and the nature of slow expansion of the SCs. Thus, it is of great importance to establish an alternative cell system for the generation of sufficient SCs...
March 15, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28295953/three-dimensional-carbon-nanotube-scaffolds-for-long-term-maintenance-and-expansion-of-human-mesenchymal-stem-cells
#8
Gaurav Lalwani, Michael D'Agati, Anu Gopalan, Sunny C Patel, Yahfi Talukdar, Balaji Sitharaman
Expansion of mesenchymal stem cells (MSCs) and maintenance of their self-renewal capacity in vitro requires specialized robust cell culture systems. Conventional approaches using animal derived or artificial matrices and a cocktail of growth factors have limitations such as consistency, scalability, pathogenicity and loss of MSC phenotype. Herein, we report the use of all-carbon 3D single- and multiwalled carbon nanotube scaffolds (SWCNTs and MWCNTs) as artificial matrices for long-term maintenance and expansion of human MSCs...
March 10, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28293395/expression-pattern-of-neurotrophins-and-their-receptors-during-neuronal-differentiation-of-adipose-derived-stem-cells-in-simulated-microgravity-condition
#9
Vajiheh Zarrinpour, Zahra Hajebrahimi, Mojtaba Jafarinia
OBJECTIVES: Studies have confirmed that microgravity, as a mechanical factor, influences both differentiation and function of mesenchymal stem cells. Here we investigated the effects of simulated microgravity on neural differentiation of human adipose-derived stem cells (ADSCs). MATERIALS AND METHODS: We have used a fast rotating clinostat (clinorotation) to simulate microgravity condition. Real-time PCR and flow cytometry analysis were used to evaluate the regulation of neurotrophins, their receptors, and neural markers by simulated microgravity and their impact on neural differentiation of cells...
February 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28291861/bone-regeneration-using-adipose-derived-stem-cells-with-fibronectin-in-dehiscence-type-defects-associated-with-dental-implants-an-experimental-study-in-a-dog-model
#10
Maria Àngels Sánchez-Garcés, Joaquín Alvira-González, Claudia Müller Sánchez, Joan R Barbany Cairó, Manuel Reina Del Pozo, Cosme Gay-Escoda
PURPOSE: To determine the bone regeneration potential of a ceramic biomaterial coated with fibronectin and adipose-derived stem cells covered in three-wall critical-size defects associated with dental implants. MATERIALS AND METHODS: In a total of 18 dogs, four dehiscence-type and critical-size defects were created surgically in the edentulous alveolar ridge with the simultaneous placement of dental implants. Defects were randomly regenerated using biomaterials coated with particulate ß-tricalcium phosphate (β-TCP), β-TCP with fibronectin (Fn) (β-TCP-Fn), and β-TCP with a combination of Fn and autologous adipose-derived stem cells (ADSCs) (β-TCP-Fn-ADSCs), leaving one defect as the control...
March 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28287510/adsc-sheet-transplantation-to-prevent-stricture-after-extended-esophageal-endoscopic-submucosal-dissection
#11
Guillaume Perrod, Laetitia Pidial, Sophie Camilleri, Alexandre Bellucci, Amaury Casanova, Thomas Viel, Bertrand Tavitian, Chirstophe Cellier, Olivier Clément, Gabriel Rahmi
In past years, the cell-sheet construct has spurred wide interest in regenerative medicine, especially for reconstructive surgery procedures. The development of diversified technologies combining adipose tissue-derived stromal cells (ADSCs) with various biomaterials has led to the construction of numerous types of tissue-engineered substitutes, such as bone, cartilage, and adipose tissues from rodent, porcine, or human ADSCs. Extended esophageal endoscopic submucosal dissection (ESD) is responsible for esophageal stricture formation...
February 10, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28265288/intravenous-administration-of-adipose-derived-stem-cell-protein-extracts-improves-neurological-deficits-in-a-rat-model-of-stroke
#12
Kai Zhao, Rui Li, Changcong Gu, Long Liu, Yulong Jia, Xize Guo, Wanping Zhang, Chunying Pei, Linlu Tian, Bo Li, Jianrong Jia, Huakun Cheng, Hongwei Xu, Lixian Li
Treatment of adipose-derived stem cell (ADSC) substantially improves the neurological deficits during stroke by reducing neuronal injury, limiting proinflammatory immune responses, and promoting neuronal repair, which makes ADSC-based therapy an attractive approach for treating stroke. However, the potential risk of tumorigenicity and low survival rate of the implanted cells limit the clinical use of ADSC. Cell-free extracts from ADSC (ADSC-E) may be a feasible approach that could overcome these limitations...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28261733/development-of-kartogenin-conjugated-chitosan-hyaluronic-acid-hydrogel-for-nucleus-pulposus-regeneration
#13
Yanxia Zhu, Jie Tan, Hongxia Zhu, Guangyao Lin, Fei Yin, Liang Wang, Kedong Song, Yiwei Wang, Guangqian Zhou, Weihong Yi
Injectable constructs for in vivo gelation have many advantages in the regeneration of degenerated nucleus pulposus. In this study, an injectable hydrogel consisting of chitosan (CS) and hyaluronic acid (HA) crosslinked with glycerol phosphate (GP) at different proportions (CS : GP : HA, 6 : 3 : 1, 5 : 3 : 2, 4 : 3 : 3, 3 : 3 : 4, 2 : 3 : 5, 1 : 3 : 6, V : V : V) was developed and employed as a delivery system for kartogenin (KGN), a biocompound that can activate chondrocytes...
March 6, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28259801/effect-of-tetrahedral-dna-nanostructures-on-osteogenic-differentiation-of-mesenchymal-stem-cells-via-activation-of-the-wnt-%C3%AE-catenin-signaling-pathway
#14
Xiao-Ru Shao, Shi-Yu Lin, Qiang Peng, Si-Rong Shi, Xiao-Long Li, Tao Zhang, Yun-Feng Lin
Adipose-derived stem cells (ADSCs) are considered to be ideal stem cell sources for bone regeneration owing to their ability to differentiate into osteo-like cells. Therefore, they have attracted increasing attention in recent years. Tetrahedral DNA nanostructures (TDNs), a new type of DNA-based biomaterials, have shown great potential for biomedical applications. In the present work, we aimed to investigate the role played by TDNs in osteogenic differentiation and proliferation of ADSCs and tried to explore if the canonical Wnt signal pathway could be the vital biological mechanism driving these cellular responses...
March 1, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28253305/chitosan-assisted-differentiation-of-porcine-adipose-tissue-derived-stem-cells-into-glucose-responsive-insulin-secreting-clusters
#15
Hui-Yu Liu, Chih-Chien Chen, Yuan-Yu Lin, Yu-Jen Chen, Bing-Hsien Liu, Shiu-Chung Wong, Cheng-Yu Wu, Yun-Tsui Chang, Han-Yi E Chou, Shih-Torng Ding
The unique advantage of easy access and abundance make the adipose-derived stem cells (ADSCs) a promising system of multipotent cells for transplantation and regenerative medicine. Among the available sources, porcine ADSCs (pADSCs) deserve especial attention due to the close resemblance of human and porcine physiology, as well as for the upcoming availability of humanized porcine models. Here, we report on the isolation and conversion of pADSCs into glucose-responsive insulin-secreting cells. We used the stromal-vascular fraction of the dorsal subcutaneous adipose from 9-day-old male piglets to isolate pADSCs, and subjected the cells to an induction scheme for differentiation on chitosan-coated plates...
2017: PloS One
https://www.readbyqxmd.com/read/28241882/systematic-review-of-patient-factors-affecting-adipose-stem-cell-viability-and-function-implications-for-regenerative-therapy
#16
REVIEW
Jajini Varghese, Michelle Griffin, Afshin Mosahebi, Peter Butler
BACKGROUND: The applications for fat grafting have increased recently, within both regenerative and reconstructive surgery. Although fat harvesting, processing and injection techniques have been extensively studied and standardised, this has not had a big impact on the variability of outcome following fat grafting. This suggests a possible larger role of patient characteristics on adipocyte and adipose-derived stem cell (ADSC) viability and function. This systematic review aims to collate current evidence on the effect of patient factors on adipocyte and ADSC behaviour...
February 28, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28240957/evaluation-of-gene-expression-and-dna-copy-number-profiles-of-adipose-tissue-derived-stromal-cells-and-consecutive-neurosphere-like-cells-generated-from-dogs-with-naturally-occurring-spinal-cord-injury
#17
Ji-Hey Lim, Sehwon Koh, Rachael Thomas, Matthew Breen, Natasha J Olby
OBJECTIVE To evaluate gene expression and DNA copy number in adipose tissue-derived stromal cells (ADSCs) and in ADSC-derived neurosphere-like cell clusters (ADSC-NSCs) generated from tissues of chronically paraplegic dogs. ANIMALS 14 client-owned paraplegic dogs. PROCEDURES Dorsal subcutaneous adipose tissue (< 1 cm(3)) was collected under general anesthesia; ADSCs were isolated and cultured. Third-passage ADSCs were cultured in neural cell induction medium to generate ADSC-NSCs. Relative gene expression of mesenchymal cell surface marker CD90 and neural progenitor marker nestin was assessed in ADSCs and ADSC-NSCs from 3 dogs by quantitative real-time PCR assay; expression of these and various neural lineage genes was evaluated for the same dogs by reverse transcription PCR assay...
March 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28229424/three-dimensional-printed-scaffolds-with-multipotent-mesenchymal-stromal-cells-for-rabbit-mandibular-reconstruction-and-engineering
#18
Dongdong Fang, Michael Roskies, Mohamed-Nur Abdallah, Mohammed Bakkar, Jack Jordan, Li-Chieh Lin, Faleh Tamimi, Simon D Tran
Multipotent mesenchymal stromal cells (MSC) derived from both the bone marrow and adipose tissue possess the ability to differentiate into multiple cell lineages, regulate the immune function by secreting numerous bioactive paracrine factors, and hold great potential in cell therapy and tissue engineering. When combined with three-dimensional (3D) scaffolds, MSC can be used for bone defect reconstruction and engineering. This protocol describes the isolation of bone marrow mesenchymal stromal cells (BMMSC) and adipose-tissue derived stem cells (ADSC) from rabbits for subsequent seeding on tissue-engineered 3D-printed scaffolds and transplantation into a rabbit-model with the goal of repairing large osseous mandibular defects (one quarter of the lower jaw is removed surgically)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28229407/assessment-of-energy-metabolic-changes-in-adipose-tissue-derived-stem-cells
#19
Ghazaleh Hajmousa, Martin C Harmsen
Adipose tissue-derived stem cells (ADSC) are promising candidates for therapeutic applications in cardiovascular regenerative medicine. By definition, the phenotype ADSCs, e.g., the ubiquitous secretion of growth factors, cytokines, and extracellular matrix components is not met in vivo, which renders ADSC a culture "artefact." The medium constituents therefore impact the efficacy of ADSC. Little attention has been paid to the energy source in medium, i.e., glucose, which feeds the cell's power plants: mitochondria...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28220818/labeling-adipose-derived-stem-cell-sheet-by-ultrasmall-super-paramagnetic-fe3o4-nanoparticles-and-magnetic-resonance-tracking-in-vivo
#20
Shukui Zhou, Ting Yin, Qingsong Zou, Kaile Zhang, Guo Gao, Joseph G Shapter, Peng Huang, Qiang Fu
Cell sheet therapy has emerged as a potential therapeutic option for reparation and reconstruction of damaged tissues and organs. However, an effective means to assess the fate and distribution of transplanted cell sheets in a serial and noninvasive manner is still lacking. To investigate the feasibility of tracking Adipose derived stem cells (ADSCs) sheet in vivo using ultrasmall super-paramagnetic Fe3O4 nanoparticles (USPIO), canine ADSCs were cultured and incubated with USPIO and 0.75 μg/ml Poly-L-Lysine (PLL) for 12 h...
February 21, 2017: Scientific Reports
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