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https://www.readbyqxmd.com/read/28718708/enhanced-bone-repair-induced-by-human-adipose-derived-stem-cells-on-osteogenic-extracellular-matrix-ornamented-small-intestinal-submucosa
#1
Chi Zhang, Mei Li, Jinjin Zhu, Fangmiao Luo, Jiyuan Zhao
AIM: Our aim was to design an osteogenic extracellular matrix (ECM) coated bioscaffold and to apply it to critical bone defect repair with adipose-derived stem cells (ADSCs). MATERIALS & METHODS: Morphology of scaffolds was scanned by scanning electron microscope. Cell adhesion, proliferation and osteogenic differentiation of ADSCs on ECM-small intestinal submucosa (SIS) were evaluated by immunofluorescences staining, cell counting kit-8 and real-time qPCR, respectively...
July 18, 2017: Regenerative Medicine
https://www.readbyqxmd.com/read/28717655/the-neck-burn-scar-contracture-a-concept-of-effective-treatment
#2
REVIEW
Sadanori Akita, Kenji Hayashida, Satoshi Takaki, Yoshihisa Kawakami, Takuto Oyama, Hiroyuki Ohjimi
A neck scar contracture can severely and negatively affect the function of mastication, phonic, or breathing and result in neck pain and issues with esthetics. The best way is of course to avoid such contracture by means of non-surgical treatment such as use of a growth factor. The basic fibroblastic growth factor is clinically well proven in decreasing scar formation and improving healing. There are numerous reconstructive methods for neck contracture, especially when the lesions are relatively limited in part of the neck...
2017: Burns and trauma
https://www.readbyqxmd.com/read/28713938/effects-of-age-on-biological-and-functional-characterization-of-adipose%C3%A2-derived-stem-cells-from-patients-with-end%C3%A2-stage-liver-disease
#3
Yanyu Jin, Lei Yang, Yanyan Zhang, Wei Gao, Zhi Yao, Yang Song, Yuliang Wang
Adipose‑derived mesenchymal stromal cells (ADSCs) possess a multilineage potential and immunoregulatory properties, and may have great potential in autologous cell‑based technologies. The aim of the present study was to investigate how the age of patients with benign end‑stage liver disease affected the biological and functional characteristics of ADSCs, which is important for increasing the potential effectiveness of autologous cell therapy. ADSCs were obtained and cultured from three distinct age groups: Infant, adult and elderly...
July 13, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713639/a-prospective-nonrandomized-no-placebo-controlled-phase-i-ii-clinical-trial-assessing-the-safety-and-efficacy-of-intramuscular-injection-of-autologous-adipose-tissue-derived-mesenchymal-stem-cells-in-patients-with-severe-buerger-s-disease
#4
Jeong Chan Ra, Euicheol C Jeong, Sung Keun Kang, Seog Ju Lee, Kyoung Ho Choi
Buerger's disease is a rare and severe disease affecting the blood vessels of the limbs. Adipose tissue-derived mesenchymal stem cells (ADSCs) have the potential to cure Buerger's disease when developed as a stem cell drug. In the present study, we conducted a prospective, nonrandomized, no placebo-controlled, phase I/II clinical trial with a 2-year follow-up questionnaire survey. A total of 17 patients were intramuscularly administered autologous ADSCs at a dose of 5 million cells/kg. The incidence of adverse events (AEs), adverse drug reaction (ADR), and serious adverse events (SAEs) was monitored...
2017: Cell Medicine
https://www.readbyqxmd.com/read/28704034/unique-thermal-stability-of-unnatural-hydrophobic-ds-bases-in-double-stranded-dnas
#5
Michiko Kimoto, Ichiro Hirao
Genetic alphabet expansion technology, the introduction of unnatural bases or base pairs into replicable DNA, has rapidly advanced as a new synthetic biology area. A hydrophobic unnatural base pair between 7-(2-thienyl)imidazo[4,5-b]pyridine (Ds) and 2-nitro-4-propynylpyrrole (Px) exhibited high fidelity as a third base pair in PCR. SELEX methods using the Ds-Px pair enabled high-affinity DNA aptamer generation, and introducing a few Ds bases into DNA aptamers extremely augmented their affinities and selectivities to target proteins...
July 13, 2017: ACS Synthetic Biology
https://www.readbyqxmd.com/read/28702926/the-stability-evaluation-of-mesenchymal-stem-cells-differentiation-toward-endothelial-cells-by-chemical-and-mechanical-stimulation
#6
Elham Hasanzadeh, Ghassem Amoabediny, Nooshin Haghighipour, Nasim Gholami, Javad Mohammadnejad, Shahrokh Shojaei, Nasim Salehi-Nik
Adipose-derived mesenchymal stem cells (ADSCs) are adult multipotent cells able to differentiate into several cell lineages. Vascular endothelial growth factor (VEGF) and the shear stress associated with blood flow are considered as the most important chemical and mechanical cues that play major roles in endothelial differentiation. However, the stability of endothelial-specific gene expression has not been completely addressed yet. ADSCs in passage 3 were cultured inside the tubular silicon tubes and then exposed to VEGF or shear stress produced in a perfusion bioreactor...
July 12, 2017: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/28698144/inhibiting-glycogen-synthase-kinase-3-and-transforming-growth-factor-%C3%AE-signaling-to-promote-epithelial-transition-of-human-adipose-mesenchymal-stem-cells
#7
Melina Setiawan, Xiao-Wei Tan, Tze-Wei Goh, Gary Hin-Fai Yam, Jodhbir S Mehta
BACKGROUND: This study was aimed to investigate the epithelial differentiation of human adipose-derived mesenchymal stem cells (ADSCs) by inhibiting glycogen synthase kinase-3 (GSK3) and transforming growth factor β (TGFβ) signaling. METHODS AND RESULTS: STEMPRO human ADSCs at passage 2 were treated with CHIR99021 (GSK3 inhibitor), E-616452 (TGFβ1 receptor kinase inhibitor), A-83-01 (TGFβ type 1 receptor inhibitor), valproic acid (histone deacetylase inhibitor), tranylcypromine (monoamine oxidase inhibitor) and all-trans retinoic acid for 72 h...
July 8, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28695751/watercress-based-electrospun-nanofibrous-scaffolds-enhance-proliferation-and-stemness-preservation-of-human-adipose-derived-stem-cells
#8
Mehdi Dadashpour, Younes Pilehvar-Soltanahmadi, Seyed Abolghasem Mohammadi, Nosratollah Zarghami, Mohammad Pourhassan-Moghaddam, Effat Alizadeh, Mohammad Jafar Maleki, Akram Firouzi-Amandi, Mohammad Nouri
The present study describes the effects of Watercress extract (WE) based electrospun nanofibrous mats on the regulation of adhesion, proliferation, cytoprotection and stemness preservation of adipose-derived stem cells (ADSCs). Watercress (Nasturtium officinale) is one of the most important medicinal plant with a board spectrum of biological functions. For this purpose, WE-loaded PCL-PEG nanofibers were fabricated by electrospinning and characterized using FE-SEM and FTIR. Adhesion, proliferation and cytoprotection of ADSCs on the nanofibers was investigated using FE-SEM and MTT assays...
July 11, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28693576/cell-based-cytotoxicity-assays-for-engineered-nanomaterials-safety-screening-exposure-of-adipose-derived-stromal-cells-to-titanium-dioxide-nanoparticles
#9
Yan Xu, M Hadjiargyrou, Miriam Rafailovich, Tatsiana Mironava
BACKGROUND: Increasing production of nanomaterials requires fast and proper assessment of its potential toxicity. Therefore, there is a need to develop new assays that can be performed in vitro, be cost effective, and allow faster screening of engineered nanomaterials (ENMs). RESULTS: Herein, we report that titanium dioxide (TiO2) nanoparticles (NPs) can induce damage to adipose derived stromal cells (ADSCs) at concentrations which are rated as safe by standard assays such as measuring proliferation, reactive oxygen species (ROS), and lactate dehydrogenase (LDH) levels...
July 11, 2017: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/28689389/is-there-additive-therapeutic-effect-when-gcsf-combined-with-adipose-derived-stem-cell-in-a-rat-model-of-acute-spinal-cord-injury
#10
Joongkee Min, Jeong Hoon Kim, Kyoung Hyo Choi, Hyung Ho Yoon, Sang Ryong Jeon
OBJECTIVE: Functional and neural tissue recovery has been reported in many animal studies conducted with stem cells. However, the combined effect of cytokines and stem cells has not yet been adequately researched. Here, we analyzed the additive effects of granulocyte colony-stimulating factor (GCSF) on adipose-derived stem cells (ADSCs) infusion in the treatment of acute spinal cord injury (SCI) in rats. METHODS: Four days after intrathecal infusion tubes implantation in Sprague-Dawley rats, SCI was induced with an infinite horizon impactor...
July 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28667462/the-evaluation-of-cartilage-differentiations-using-transforming-growth-factor-beta3-alone-and-with-combination-of-bone-morphogenetic-protein-6-on-adult-stem-cells
#11
C C Ude, H C Chen, M Y Norhamdan, B M Azizi, B S Aminuddin, B H I Ruszymah
In our quest to standardize our formula for a clinical trial, transforming growth factor-beta3 (TGF-β3) alone and in combination with bone morphogenetic protein-6 (BMP-6) were evaluated for their effectiveness in cartilage differentiation. Bone Marrow Stem Cells (BMSCs) and Adipose Derived Stem Cells (ADSCs) were induced to chondrogenic lineage using two different media. Native chondrocytes served as positive control. ADSCs and BMSCs proved multipotency by tri-lineage differentiations. ADSC has significantly higher growth kinetics compare to Chondrocyte only p ≤ 0...
June 30, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28645702/use-of-adipose-tissue-and-stromal-vascular-fraction-in-hand-surgery
#12
REVIEW
Iad Nseir, Flore Delaunay, Charles Latrobe, Albane Bonmarchand, Dorothée Coquerel-Beghin, Isabelle Auquit-Auckbur
Adipose tissue is an abundant source of various cell types including not only adipocytes, but also progenitor and endothelial cells from thestroma. Interest in adipose tissue has surged since the identification in 2001 of adipose-derived stem cells (ADSCs) and of the stromal vascular fraction (SVF) obtained from adipose tissue by enzymatic digestion and centrifugation. SVF has been proven effective in ensuring tissue regeneration, thus improving tissue trophicityand vascularisation. These effects have generated strong interest among both physicians and surgeons, particularly in the field of hand surgery...
June 20, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28637982/in-vivo-evaluation-of-chitosan-glycerol-gel-scaffolds-seeded-with-stem-cells-for-full-thickness-mandibular-bone-regeneration
#13
Michele Maglione, Serena Spano, Maria E Ruaro, Enrico Salvador, Fabrizio Zanconati, Giuliana Tromba, Gianluca Turco
The aim of this study was to evaluate in vivo bone regeneration, mediated by adipose-derived stem cells (ADSCs), induced to differentiate into osteoblasts and carried by a scaffold gel. In the test group, bone regeneration was mediated by ADSCs, induced to differentiate into osteoblasts, and carried by a scaffold gel. In the control group a scaffold without cells was used. The scaffold, consisting of chitosan and glycerol phosphate, was maintained in situ by a cross-linked resorbable membrane. The osteogenic potential of ADSCs was confirmed by osteocalcin assay and Von Kossa staining performed before implantation...
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28636235/stem-cell-based-tooth-and-periodontal-regeneration
#14
Lei Hu, Yi Liu, Songlin Wang
Currently regeneration of tooth and periodontal damage still remains great challenge. Stem cell-based tissue engineering raised novel therapeutic strategies for tooth and periodontal repair. Stem cells for tooth and periodontal regeneration include dental pulp stem cells (DPSCs), periodontal ligament stem cells (PDLSCs), stem cells from the dental apical papilla (SCAPs), and stem cells from human exfoliated deciduous teeth (SHEDs), dental follicle stem cells (DFSCs), dental epithelial stem cells (DESCs), bone marrow mesenchymal stem cells (BMMSCs), adipose-derived stem cells (ADSCs), embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs)...
June 21, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28622077/a-comparative-study-of-the-effects-of-sodium-selenite-and-glutathione-mono-ethyl-ester-on-aged-adipose-derived-stem-cells-the-telomerase-and-cellular-responses
#15
N Aminizadeh, Taki M Tiraihi, S A Mesbah-Namin, Taher Taheri
The proliferation and differentiation potential of adipose derived stem cells (ADSCs) declines with ageing. Moreover, Alzheimer's disease is associated with progressive decline in cholinergic neurons. The purpose of this study is to enhance the proliferation potential of aged rat ADSCs and their differentiation into cholinergic neurons. The ADSCs were collected from aged male rats cultured and treated with different concentrations of sodium selenite for 3 days or glutathione mono ethyl ester (GSH-MEE) for 1 day...
June 16, 2017: Rejuvenation Research
https://www.readbyqxmd.com/read/28620864/adipose-tissue-derived-stromal-cells-adsc-express-oligodendrocyte-and-myelin-markers-but-they-do-not-function-as-oligodendrocytes
#16
Lara Vellosillo, Maria Paz Muñoz, Carlos Luis Paíno
Mesenchymal cells cultured from the vasculo-stromal fraction of adipose tissue (ADSC) show adult stem cell characteristics and several groups have claimed generating neural cells from them. However, we have observed that many markers commonly used for the identification of neural cells are spontaneously expressed by ADSC in culture. In the present study, we have examined the expression of characteristic oligodendrocyte molecules in cultured ADSC, aiming to test if myelinating cells could be generated from accessible non-neural adult tissues...
June 15, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28619097/adipose-tissue-derived-stromal-vascular-fraction-in-regenerative-medicine-a-brief-review-on-biology-and-translation
#17
REVIEW
Pablo Bora, Anish S Majumdar
Adipose/fat tissue provides an abundant source of stromal vascular fraction (SVF) cells for immediate administration and can also give rise to a substantial number of cultured, multipotent adipose-derived stromal cells (ADSCs). Recently, both SVF and ADSCs have gained wide-ranging translational significance in regenerative medicine. Initially used for cosmetic breast enhancement, this mode of treatment has found use in many diseases involving immune disorders, tissue degeneration, and ischaemic conditions. In this review, we try to address several important aspects of this field, outlining the biology, technology, translation, and challenges related to SVF- and ADSC-based therapies...
June 15, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28618050/different-porosities-of-chitosan-can-influence-the-osteogenic-differentiation-potential-of-stem-cells
#18
Abdolreza Ardeshirylajimi, Mahdieh Delgoshaie, Samaneh Mirzaei, Arash Khojasteh
Scaffolds porosity has an important role in in vitro and in vivo differentiation process of stem cells with given the amount of space available to the cells to proliferate and differentiate. In the present study, chitosan with three porosities including 10%, 15%, and 20% that created by gelatin were used for investigation of the proliferation and osteogenic differentiation potential of adipose-derived stem cells (ADSCs). In order to be more like the scaffold to natural bone tissue, freeze-drying method was used in the scaffold preparation...
June 15, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28614775/changes-in-viability-of-rat-adipose-derived-stem-cells-isolated-from-abdominal-perinuclear-adipose-tissue-stimulated-with-pulsed-electromagnetic-field
#19
A Baranowska, B Skowron, B Nowak, K Ciesielczyk, P Guzdek, K Gil, J Kaszuba-Zwoinska
Previous experiments demonstrated that low-frequency electromagnetic field (LF-EMF) may activate cellular death pathways in proliferating cells. Therefore, we hypothesized that LF-EMF may also influence viability of highly proliferating undifferentiated adipose-derived stem cells. Obesity is classified as a civilization disease; its etiopathogenesis is presumed to include both genetic predisposition and influence of modified environmental factors, such as unbalanced diet with excess calories and/or too low physical activity...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28612522/-the-mechanisms-of-trimetazidine-alleviating-the-oxidative-stress-in-adipose-derived-mesenchymal-stem-cells
#20
Mao-Han Tang, Yan-Jie Zhang, Yin Liu, Zhi-Guang Su
OBJECTIVES: To investigate the effects of trimetazidine (TMZ) on the oxidative stress injury in adipose-derived mesenchymal stem cells (ADSCs). METHODS: ADSCs derived from adipose tissue of SD rats were characterized by flow cytometry and multiline age differentiation. ADSCs apoptosis was induced by H2O2 in vitro , Dirrerent concentration of TMZ (250 μmol/L, 500 μmol/L) was used to protect ADSCs from apoptosis. The morphological features of apoptotic ADSCs were analyzed by Hoechst 33342, mitochondrial potential and structure was analyzed by JC-1 staining and electron microscope, respectively...
March 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
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