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Stem Cell Research & Therapy

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https://www.readbyqxmd.com/read/28095922/long-noncoding-rna-braveheart-promotes-cardiogenic-differentiation-of-mesenchymal-stem-cells-in-vitro
#1
Jingying Hou, Huibao Long, Changqing Zhou, Shaoxin Zheng, Hao Wu, Tianzhu Guo, Quanhua Wu, Tingting Zhong, Tong Wang
BACKGROUND: Mesenchymal stem cells (MSCs) have limited potential of cardiogenic differentiation. In this study, we investigated the influence of long noncoding RNA Braveheart (lncRNA-Bvht) on cardiogenic differentiation of MSCs in vitro. METHODS: MSCs were obtained from C57BL/6 mice and cultured in vitro. Cells were divided into three groups: blank control, null vector control, and lncRNA-Bvht. All three groups experienced exposure to hypoxia (1% O2) and serum deprivation for 24 h, and 24 h of reoxygenation (20% O2)...
January 17, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28061861/oxidative-status-predicts-quality-in-human-mesenchymal-stem-cells
#2
Alessandro Bertolo, Simona Capossela, Gion Fränkl, Martin Baur, Tobias Pötzel, Jivko Stoyanov
BACKGROUND: Human bone marrow-derived mesenchymal stem cells (MSC) are adult progenitor cells with great potential for application in cell-based therapies. From a cell-based therapy perspective, there are two limitations to MSC use: (1) these therapies require large numbers of cells, and long-term expansion of MSC in vitro promotes replicative senescence; and (2) patient variability is a challenge for defining MSC quality standards for transplantation. This study aimed to determine whether low or high oxidative status of MSC correlate with changes in cell expansion and differentiation potentials...
January 6, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28057078/determinates-of-muscle-precursor-cell-therapy-efficacy-in-a-nonhuman-primate-model-of-intrinsic-urinary-sphincter-deficiency
#3
James Koudy Williams, Ashley Dean, Shannon Lankford, Tracy Criswell, Gopal Badlani, Karl-Erik Andersson
BACKGROUND: Cell therapy for intrinsic urinary sphincter deficiency (ISD) in women has been moderately effective, and improvements are needed. To improve treatment efficacy, it is important to better understand determinates of cell efficacy in the different patient cohorts. We have reported that in nonhuman primates the chronicity of ISD may affect cell efficacy, but additional factors (age, psychosocial stress, hormone status, body weight) can be associated with many disease/treatment outcomes in women - and these factors are the focus of this study...
January 6, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28057064/the-lncrnas-involved-in-mouse-airway-allergic-inflammation-following-induced-pluripotent-stem-cell-mesenchymal-stem-cell-treatment
#4
Shu-Yue Wang, Xing-Liang Fan, Qiu-Ning Yu, Meng-Xia Deng, Yue-Qi Sun, Wen-Xiang Gao, Cheng-Lin Li, Jian-Bo Shi, Qing-Ling Fu
BACKGROUND: We have previously reported that induced pluripotent stem cell (iPSC)-mesenchymal stem cells (MSCs) alleviated asthma inflammation in mice. Long noncoding RNAs (lncRNAs) were recently reported as being involved in the immune responses. However, whether lncRNAs are associated with iPSC-MSC immunomodulation in allergic inflammation is still unclear. METHODS: Mice were induced into an asthmatic state and received treatment consisting of iPSC-MSCs. Memory T cells isolated from sensitized mice were challenged and co-cultured with iPSC-MSCs in vitro...
January 6, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28038685/grafted-c-kit-ssea1-eye-wall-progenitor-cells-delay-retinal-degeneration-in-mice-by-regulating-neural-plasticity-and-forming-new-graft-to-host-synapses
#5
Xi Chen, Zehua Chen, Zhengya Li, Chen Zhao, Yuxiao Zeng, Ting Zou, Caiyun Fu, Xiaoli Liu, Haiwei Xu, Zheng Qin Yin
BACKGROUND: Despite diverse pathogenesis, the common pathological change observed in age-related macular degeneration and in most hereditary retinal degeneration (RD) diseases is photoreceptor loss. Photoreceptor replacement by cell transplantation may be a feasible treatment for RD. The major obstacles to clinical translation of stem cell-based cell therapy in RD remain the difficulty of obtaining sufficient quantities of appropriate and safe donor cells and the poor integration of grafted stem cell-derived photoreceptors into the remaining retinal circuitry...
December 30, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28038684/ll-37-boosts-immunosuppressive-function-of-placenta-derived-mesenchymal-stromal-cells
#6
Martha Oliveira-Bravo, Bruno Braga Sangiorgi, Josiane Lilian Dos Santos Schiavinato, Juliana Lott Carvalho, Dimas Tadeu Covas, Rodrigo Alexandre Panepucci, Francisco de Assis Rocha Neves, Octávio Luiz Franco, Rinaldo Wellerson Pereira, Felipe Saldanha-Araujo
BACKGROUND: Although promising for graft-versus-host disease (GvHD) treatment, MSC therapy still faces important challenges. For instance, increasing MSC migratory capacity as well as potentializing immune response suppression are of interest. For GvHD management, preventing opportunistic infections is also a valuable strategy, since immunocompromised patients are easy targets for infections. LL-37 is a host defense peptide (HDP) that has been deeply investigated due to its immunomodulatory function...
December 30, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28038682/comparison-of-a-teratogenic-transcriptome-based-predictive-test-based-on-human-embryonic-versus-inducible-pluripotent-stem-cells
#7
Vaibhav Shinde, Sureshkumar Perumal Srinivasan, Margit Henry, Tamara Rotshteyn, Jürgen Hescheler, Jörg Rahnenführer, Marianna Grinberg, Johannes Meisig, Nils Blüthgen, Tanja Waldmann, Marcel Leist, Jan Georg Hengstler, Agapios Sachinidis
BACKGROUND: Human embryonic stem cells (hESCs) partially recapitulate early embryonic three germ layer development, allowing testing of potential teratogenic hazards. Because use of hESCs is ethically debated, we investigated the potential for human induced pluripotent stem cells (hiPSCs) to replace hESCs in such tests. METHODS: Three cell lines, comprising hiPSCs (foreskin and IMR90) and hESCs (H9) were differentiated for 14 days. Their transcriptome profiles were obtained on day 0 and day 14 and analyzed by comprehensive bioinformatics tools...
December 30, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28038681/nanostructured-scaffold-as-a-determinant-of-stem-cell-fate
#8
REVIEW
Lekshmi Krishna, Kamesh Dhamodaran, Chaitra Jayadev, Kaushik Chatterjee, Rohit Shetty, S S Khora, Debashish Das
The functionality of stem cells is tightly regulated by cues from the niche, comprising both intrinsic and extrinsic cell signals. Besides chemical and growth factors, biophysical signals are important components of extrinsic signals that dictate the stem cell properties. The materials used in the fabrication of scaffolds provide the chemical cues whereas the shape of the scaffolds provides the biophysical cues. The effect of the chemical composition of the scaffolds on stem cell fate is well researched. Biophysical signals such as nanotopography, mechanical forces, stiffness of the matrix, and roughness of the biomaterial influence the fate of stem cells...
December 30, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27938412/a-systematic-review-of-randomised-controlled-trials-examining-the-therapeutic-effects-of-adult-bone-marrow-derived-stem-cells-for-non-ischaemic-dilated-cardiomyopathy
#9
Yi Lu, Yiqin Wang, Menglu Lin, Jiale Zhou, Zi Wang, Meng Jiang, Ben He
BACKGROUND: Certain early-phase clinical trials have suggested that bone marrow-derived stem cell transplantation might improve left ventricular function in patients with non-ischaemic dilated cardiomyopathy (NIDCM), whereas others trials have revealed no benefit from this approach. We sought to evaluate the therapeutic effects of bone marrow-derived stem cell therapy on NIDCM. METHODS: We searched the PubMed, Embase, and Cochrane Central Register of Controlled Trials (CENTRAL) databases (through February 2016) for randomised controlled clinical trials that reported on bone marrow-derived stem cell transplantation for patients with NIDCM with a follow-up period ≥12 months...
December 9, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27938398/high-glucose-suppresses-embryonic-stem-cell-differentiation-into-cardiomyocytes-high-glucose-inhibits-es-cell-cardiogenesis
#10
Penghua Yang, Xi Chen, Sunjay Kaushal, E Albert Reece, Peixin Yang
BACKGROUND: Babies born to mothers with pregestational diabetes have a high risk for congenital heart defects (CHD). Embryonic stem cells (ESCs) are excellent in vitro models for studying the effect of high glucose on cardiac lineage specification because ESCs can be differentiated into cardiomyocytes. ESC maintenance and differentiation are currently performed under high glucose conditions, whose adverse effects have never been clarified. METHOD: We investigated the effect of high glucose on cardiomyocyte differentiation from a well-characterized ESC line, E14, derived from mouse blastocysts...
December 9, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27931263/extracellular-matrix-components-and-culture-regimen-selectively-regulate-cartilage-formation-by-self-assembling-human-mesenchymal-stem-cells-in-vitro-and-in-vivo
#11
Johnathan Ng, Yiyong Wei, Bin Zhou, Aonnicha Burapachaisri, Edward Guo, Gordana Vunjak-Novakovic
BACKGROUND: Cartilage formation from self-assembling mesenchymal stem cells (MSCs) in vitro recapitulate important cellular events during mesenchymal condensation that precedes native cartilage development. The goal of this study was to investigate the effects of cartilaginous extracellular matrix (ECM) components and culture regimen on cartilage formation by self-assembling human MSCs in vitro and in vivo. METHODS: Human bone marrow-derived MSCs (hMSCs) were seeded and compacted in 6...
December 9, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27931264/centrifugal-gravity-induced-bmp4-induces-chondrogenic-differentiation-of-adipose-derived-stem-cells-via-sox9-upregulation
#12
Yeonsue Jang, Hyerin Jung, Yoojun Nam, Yeri Alice Rim, Juryun Kim, Sang Hoon Jeong, Ji Hyeon Ju
BACKGROUND: Cartilage does not have the capability to regenerate itself. Therefore, stem cell transplantation is a promising therapeutic approach for impaired cartilage. For stem cell transplantation, in vitro enrichment is required; however, stem cells not only become senescent but also lose their differentiation potency during this process. In addition, cytokines are normally used for chondrogenic differentiation induction of stem cells, which is highly expensive and needs an additional step to culture...
December 8, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27927230/molecular-control-of-nitric-oxide-synthesis-through-enos-and-caveolin-1-interaction-regulates-osteogenic-differentiation-of-adipose-derived-stem-cells-by-modulation-of-wnt-%C3%AE-catenin-signaling
#13
Nadeeka Bandara, Saliya Gurusinghe, Shiang Yong Lim, Haying Chen, Shuangfeng Chen, Dawei Wang, Bryan Hilbert, Le-Xin Wang, Padraig Strappe
BACKGROUND: Nitric oxide (NO) plays a role in a number of physiological processes including stem cell differentiation and osteogenesis. Endothelial nitric oxide synthase (eNOS), one of three NO-producing enzymes, is located in a close conformation with the caveolin-1 (CAV-1(WT)) membrane protein which is inhibitory to NO production. Modification of this interaction through mutation of the caveolin scaffold domain can increase NO release. In this study, we genetically modified equine adipose-derived stem cells (eASCs) with eNOS, CAV-1(WT), and a CAV-1(F92A) (CAV-1(WT) mutant) and assessed NO-mediated osteogenic differentiation and the relationship with the Wnt signaling pathway...
December 7, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27927223/mitochondrial-co-chaperone-protein-tid1-is-required-for-energy-homeostasis-during-skeletal-myogenesis
#14
Li-Hao Cheng, Kai-Feng Hung, Te-Chang Lee, Chih-Yang Huang, Wen-Ting Chiu, Jeng-Fan Lo, Tung-Fu Huang
BACKGROUND: Tid1 is a mitochondrial co-chaperone protein and its transcript is abundantly expressed in skeletal muscle tissues. However, the physiological function of Tid1 during skeletal myogenesis remains unclear. METHODS: In vitro induced differentiation assay of mouse myoblast C2C12 cells was applied to examine the physiological role of Tid1 during skeletal myogenesis. In addition, transgenic mice with muscle specific (HSA-Cre) Tid1 deletion were established and examined to determine the physiological function of Tid1 during skeletal muscle development in vivo...
December 7, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27908290/bile-acid-a-potential-inducer-of-colon-cancer-stem-cells
#15
Lulu Farhana, Pratima Nangia-Makker, Evan Arbit, Kathren Shango, Sarah Sarkar, Hamidah Mahmud, Timothy Hadden, Yingjie Yu, Adhip P N Majumdar
BACKGROUND: Although the unconjugated secondary bile acids, specifically deoxycholic acid (DCA) and lithocholic acid (LCA), are considered to be risk factors for colorectal cancer, the precise mechanism(s) by which they regulate carcinogenesis is poorly understood. We hypothesize that the cytotoxic bile acids may promote stemness in colonic epithelial cells leading to generation of cancer stem cells (CSCs) that play a role in the development and progression of colon cancer. METHODS: Normal human colonic epithelial cells (HCoEpiC) were used to study bile acid DCA/LCA-mediated induction of CSCs...
December 1, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27906099/p311-induces-the-transdifferentiation-of-epidermal-stem-cells-to-myofibroblast-like-cells-by-stimulating-transforming-growth-factor-%C3%AE-1-expression
#16
Haisheng Li, Zhihui Yao, Weifeng He, Hongyan Gao, Yang Bai, Sisi Yang, Lu Zhang, Rixing Zhan, Jianglin Tan, Junyi Zhou, Masao Takata, Jun Wu, Gaoxing Luo
BACKGROUND: Epithelial to mesenchymal transition, especially to myofibroblasts, plays an important role in wound healing, fibrosis, and carcinogenesis. Epidermal stem cells (EpSCs) are responsible for epidermal renewal and wound re-epithelialization. However, it remains unclear whether and how EpSCs transdifferentiate into myofibroblasts or myofibroblast-like cells (MFLCs). Here, we provide the first evidence showing that P311 induces EpSC to MFLC transdifferentiation (EpMyT) via TGFβ1/Smad signaling...
December 1, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27906093/microrna-140-5p-inhibits-colorectal-cancer-invasion-and-metastasis-by-targeting-adamts5-and-igfbp5
#17
Lihui Yu, Ying Lu, Xiaocui Han, Wenyue Zhao, Jiazhi Li, Jun Mao, Bo Wang, Jie Shen, Shujun Fan, Lu Wang, Mei Wang, Lianhong Li, Jianwu Tang, Bo Song
BACKGROUND: Colorectal cancer (CRC) is one of the most common malignancies in the world. microRNA-140-5p (miR-140) has been shown to be involved in cartilage development and osteoarthritis (OA) pathogenesis. Some contradictions still exist concerning the role of miR-140 in tumor progression and metastasis, and the underlying mechanism is uncertain. METHODS: Immunohistochemistry was performed to determine the expressions of ADAMTS5 and IGFBP5 in CRC tissues. Human CRC cell lines HCT116 and RKO were transfected with miR-140 mimic, inhibitor, or small interfering RNA (siRNA) against ADAMTS5 or IGFBP5, respectively, using oligofectamine or lipofectamine 2000...
December 1, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27906070/subretinal-adipose-tissue-derived-mesenchymal-stem-cell-implantation-in-advanced-stage-retinitis-pigmentosa-a-phase-i-clinical-safety-study
#18
Ayse Oner, Z Burcin Gonen, Neslihan Sinim, Mustafa Cetin, Yusuf Ozkul
BACKGROUND: This prospective clinical case series aimed to investigate the safety of subretinal adipose tissue-derived mesenchymal stem cell (ADMSC) implantation in advanced stage retinitis pigmentosa (RP). METHODS: This study included 11 patients with end-stage RP who received subretinal implantation of ADMSCs. All patients had a total visual field defect and five of them only had light perception. The best corrected visual acuity (BCVA) in the study was 20/2000...
December 1, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27906060/discrete-adipose-derived-stem-cell-subpopulations-may-display-differential-functionality-after-in-vitro-expansion-despite-convergence-to-a-common-phenotype-distribution
#19
Frederik Mølgaard Nielsen, Simone Elkjær Riis, Jens Isak Andersen, Raphaëlle Lesage, Trine Fink, Cristian Pablo Pennisi, Vladimir Zachar
BACKGROUND: Complex immunophenotypic repertoires defining discrete adipose-derived stem cell (ASC) subpopulations may hold a key toward identifying predictors of clinical utility. To this end, we sorted out of the freshly established ASCs four subpopulations (SPs) according to a specific pattern of co-expression of six surface markers, the CD34, CD73, CD90, CD105, CD146, and CD271, using polychromatic flow cytometry. METHOD: Using flow cytometry-associated cell sorting and analysis, gating parameters were set to select for a CD73(+)CD90(+)CD105(+) phenotype plus one of the four following combinations, CD34(-)CD146(-)CD271(-) (SP1), CD34(-)CD146(+)CD271(-) (SP2), CD34(+)CD146(+)CD271(-) (SP3), and CD34(-)CD146(+)CD271(+) (SP4)...
December 1, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27906056/umbilical-cord-blood-derived-non-hematopoietic-stem-cells-retrieved-and-expanded-on-bone-marrow-derived-extracellular-matrix-display-pluripotent-characteristics
#20
Junjie Wu, Yun Sun, Travis J Block, Milos Marinkovic, Zhi-Liang Zhang, Richard Chen, Yixia Yin, Juquan Song, David D Dean, Zhongding Lu, Xiao-Dong Chen
BACKGROUND: Umbilical cord blood (UCB) not only contains hematopoietic stem cells (HSCs), but also non-hematopoietic stem cells (NHSCs) that are able to differentiate into a number of distinct cell types. Based on studies published to date, the frequency of NHSCs in UCB is believed to be very low. However, the isolation of these cells is primarily based on their adhesion to tissue culture plastic surfaces. METHODS AND RESULTS: In the current study, we demonstrate that this approach overlooks some of the extremely immature NHSCs because they lack the ability to adhere to plastic...
December 1, 2016: Stem Cell Research & Therapy
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