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Stem Cells International

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https://www.readbyqxmd.com/read/28421116/mitochondrial-maturation-in-human-pluripotent-stem-cell-derived-cardiomyocytes
#1
Dao-Fu Dai, Maria Elena Danoviz, Brian Wiczer, Michael A Laflamme, Rong Tian
Human pluripotent stem cells derived cardiomyocytes (PSC-CMs) have been widely used for disease modeling, drug safety screening, and preclinical cell therapy to regenerate myocardium. Most studies have utilized PSC-CM grown in vitro for a relatively short period after differentiation. These PSC-CMs demonstrated structural, electrophysiological, and mechanical features of primitive cardiomyocytes. A few studies have extended in vitro PSC-CM culture time and reported improved maturation of structural and electromechanical properties...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28408934/sdf-1-cxcr4-signaling-maintains-stemness-signature-in-mouse-neural-stem-progenitor-cells
#2
Shih-Yin Ho, Thai-Yen Ling, Hsing-Yu Lin, Jeffrey Tsai-Jui Liou, Fei-Chih Liu, I-Chun Chen, Sue-Wei Lee, Yu Hsu, Dar-Ming Lai, Horng-Huei Liou
SDF-1 and its primary receptor, CXCR4, are highly expressed in the embryonic central nervous system (CNS) and play a crucial role in brain architecture. Loss of SDF-1/CXCR4 signaling causes abnormal development of neural stem/progenitor cells (NSCs/NPCs) in the cerebellum, hippocampus, and cortex. However, the mechanism of SDF-1/CXCR4 axis in NSCs/NPCs regulation remains unknown. In this study, we found that elimination of SDF-1/CXCR4 transduction caused NSCs/NPCs to lose their stemness characteristics and to encounter neurogenic differentiation...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28396689/corrigendum-to-fabrication-of-core-shell-pei-pbmp2-plga-electrospun-scaffold-for-gene-delivery-to-periodontal-ligament-stem-cells
#3
Qiao Xie, Lie-Ni Jia, Hong-Yu Xu, Xiang-Gang Hu, Wei Wang, Jun Jia
[This corrects the article DOI: 10.1155/2016/5385137.].
2017: Stem Cells International
https://www.readbyqxmd.com/read/28396688/age-related-changes-in-nucleus-pulposus-mesenchymal-stem-cells-an-in-vitro-study-in-rats
#4
Yachao Zhao, Zhiwei Jia, Shanshan Huang, Yaohong Wu, Longgang Liu, Linghan Lin, Deli Wang, Qing He, Dike Ruan
The functions of mesenchymal stem cells (MSCs) appear to decline with age due to cellular senescence, which could reduce the efficacy of MSCs-based therapies. Recently, MSCs have been identified in the nucleus pulposus, which offers great potential for intervertebral disc (IVD) repair. However, this potential might be affected by the senescence of nucleus pulposus MSCs (NPMSCs), but whether or not this exists remains unknown. The aim of this study was to investigate the age-related changes in NPMSCs. NPMSCs isolated from young (3-month-old) and old (14-month-old) Sprague-Dawley rats were cultured in vitro...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28392805/cadherins-associate-with-distinct-stem-cell-related-transcription-factors-to-coordinate-the-maintenance-of-stemness-in-triple-negative-breast-cancer
#5
Chuanwei Yang, Xuemei Zhao, Naipeng Cui, Yulong Liang
Triple-negative breast cancer (TNBC) is an aggressive type of breast cancer with poor prognosis and is enriched in cancer stem cells (CSCs). However, it is not completely understood how the CSCs were maintained in TNBC. In this study, by analyzing The Cancer Genome Atlas (TCGA) provisional datasets and several small-size breast datasets, we found that cadherins (CDHs) 2, 4, 6, and 17 were frequently amplified/overexpressed in 47% of TNBC while E-cadherin (CDH1) was downregulated/mutated at 10%. The alterations of CDH2/4/6/17 were strongly associated with the elevated levels of several stem cell-related transcription factors (SC-TFs) including FOXM1, MCM2, WWTR1, SNAI1, and SOX9...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28386285/mesenchymal-stem-cells-transplantation-following-partial-hepatectomy-a-new-concept-to-promote-liver-regeneration-systematic-review-of-the-literature-focused-on-experimental-studies-in-rodent-models
#6
REVIEW
Ioannis G Papanikolaou, Charalambos Katselis, Konstantinos Apostolou, Themistoklis Feretis, Maria Lymperi, Manousos M Konstadoulakis, Apostolos E Papalois, George C Zografos
Mesenchymal stem cells (MSCs) are an attractive source for regenerative medicine because they are easily accessible through minimally invasive methods and have the potential to enhance liver regeneration (LG) and improve liver function, following partial hepatectomy (PH) and acute or chronic liver injury. A systematic review of the literature was conducted for articles published up to September 1st, 2016, using the MEDLINE database. The keywords that were used in various combinations were as follows: "Mesenchymal stem cells", "transplantation", "stem cells", "adipose tissue derived stem cells", "bone marrow-derived stem cells", "partial hepatectomy", "acute liver failure", "chronic liver failure", "liver fibrosis", "liver cirrhosis", "rats", "mice", and "liver regeneration"...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28386284/ligament-derived-stem-cells-identification-characterisation-and-therapeutic-application
#7
REVIEW
Katie Joanna Lee, Peter David Clegg, Eithne Josephine Comerford, Elizabeth Gail Canty-Laird
Ligament is prone to injury and degeneration and has poor healing potential and, with currently ineffective treatment strategies, stem cell therapies may provide an exciting new treatment option. Ligament-derived stem cell (LDSC) populations have been isolated from a number of different ligament types with the majority of studies focussing on periodontal ligament. To date, only a few studies have investigated LDSC populations in other types of ligament, for example, intra-articular ligaments; however, this now appears to be a developing field...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28377788/mesenchymal-stem-cell-derived-extracellular-vesicles-roles-in-tumor-growth-progression-and-drug-resistance
#8
REVIEW
Xiaoyan Zhang, Huaijun Tu, Yazhi Yang, Lijun Fang, Qiong Wu, Jian Li
Mesenchymal stem cells (MSCs) are ubiquitously present in many tissues. Due to their unique advantages, MSCs have been widely employed in clinical studies. Emerging evidences indicate that MSCs can also migrate to the tumor surrounding stroma and exert complex effects on tumor growth and progression. However, the effect of MSCs on tumor growth is still a matter of debate. Several studies have shown that MSCs could favor tumor growth. On the contrary, other groups have demonstrated that MSCs suppressed tumor progression...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28373885/mechanisms-regulating-stemness-and-differentiation-in-embryonal-carcinoma-cells
#9
REVIEW
Gregory M Kelly, Mohamed I Gatie
Just over ten years have passed since the seminal Takahashi-Yamanaka paper, and while most attention nowadays is on induced, embryonic, and cancer stem cells, much of the pioneering work arose from studies with embryonal carcinoma cells (ECCs) derived from teratocarcinomas. This original work was broad in scope, but eventually led the way for us to focus on the components involved in the gene regulation of stemness and differentiation. As the name implies, ECCs are malignant in nature, yet maintain the ability to differentiate into the 3 germ layers and extraembryonic tissues, as well as behave normally when reintroduced into a healthy blastocyst...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28356914/targeting-signaling-pathways-in-cancer-stem-cells-for-cancer-treatment
#10
REVIEW
Jeffrey Koury, Li Zhong, Jijun Hao
The Wnt, Hedgehog, and Notch pathways are inherent signaling pathways in normal embryogenesis, development, and hemostasis. However, dysfunctions of these pathways are evident in multiple tumor types and malignancies. Specifically, aberrant activation of these pathways is implicated in modulation of cancer stem cells (CSCs), a small subset of cancer cells capable of self-renewal and differentiation into heterogeneous tumor cells. The CSCs are accountable for tumor initiation, growth, and recurrence. In this review, we focus on roles of Wnt, Hedgehog, and Notch pathways in CSCs' stemness and functions and summarize therapeutic studies targeting these pathways to eliminate CSCs and improve overall cancer treatment outcomes...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28348600/delivery-of-bone-marrow-derived-mesenchymal-stem-cells-improves-tear-production-in-a-mouse-model-of-sj%C3%A3-gren-s-syndrome
#11
Hema S Aluri, Mahta Samizadeh, Maria C Edman, Dillon R Hawley, Helene L Armaos, Srikanth R Janga, Zhen Meng, Victor G Sendra, Pedram Hamrah, Claire L Kublin, Sarah F Hamm-Alvarez, Driss Zoukhri
The purpose of the present study was to test the potential of mouse bone marrow-derived mesenchymal stem cells (BD-MSCs) in improving tear production in a mouse model of Sjögren's syndrome dry eye and to investigate the underlying mechanisms involved. NOD mice (n = 20) were randomized to receive i.p. injection of sterile phosphate buffered saline (PBS, control) or murine BD-MSCs (1 × 10(6) cells). Tears production was measured at baseline and once a week after treatment using phenol red impregnated threads...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28337224/gut-mesenchymal-stromal-cells-in-immunity
#12
REVIEW
Valeria Messina, Carla Buccione, Giulia Marotta, Giovanna Ziccheddu, Michele Signore, Gianfranco Mattia, Rossella Puglisi, Benedetto Sacchetti, Livia Biancone, Mauro Valtieri
Mesenchymal stromal cells (MSCs), first found in bone marrow (BM), are the structural architects of all organs, participating in most biological functions. MSCs possess tissue-specific signatures that allow their discrimination according to their origin and location. Among their multiple functions, MSCs closely interact with immune cells, orchestrating their activity to maintain overall homeostasis. The phenotype of tissue MSCs residing in the bowel overlaps with myofibroblasts, lining the bottom walls of intestinal crypts (pericryptal) or interspersed within intestinal submucosa (intercryptal)...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28337223/emerging-perspectives-in-scaffold-for-tissue-engineering-in-oral-surgery
#13
REVIEW
Gabriele Ceccarelli, Rossella Presta, Laura Benedetti, Maria Gabriella Cusella De Angelis, Saturnino Marco Lupi, Ruggero Rodriguez Y Baena
Bone regeneration is currently one of the most important and challenging tissue engineering approaches in regenerative medicine. Bone regeneration is a promising approach in dentistry and is considered an ideal clinical strategy in treating diseases, injuries, and defects of the maxillofacial region. Advances in tissue engineering have resulted in the development of innovative scaffold designs, complemented by the progress made in cell-based therapies. In vitro bone regeneration can be achieved by the combination of stem cells, scaffolds, and bioactive factors...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28337222/a-conditioned-medium-of-umbilical-cord-mesenchymal-stem-cells-overexpressing-wnt7a-promotes-wound-repair-and-regeneration-of-hair-follicles-in-mice
#14
Liang Dong, Haojie Hao, Jiejie Liu, Dongdong Ti, Chuan Tong, Qian Hou, Meirong Li, Jingxi Zheng, Gang Liu, Xiaobing Fu, Weidong Han
Mesenchymal stem cells (MSCs) can affect the microenvironment of a wound and thereby accelerate wound healing. Wnt proteins act as key mediators of skin development and participate in the formation of skin appendages such as hair. The mechanisms of action of MSCs and Wnt proteins on skin wounds are largely unknown. Here, we prepared a Wnt7a-containing conditioned medium (Wnt-CM) from the supernatant of cultured human umbilical cord-MSCs (UC-MSCs) overexpressing Wnt7a in order to examine the effects of this CM on cutaneous healing...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28337221/cancer-stem-cells-and-their-microenvironment-biology-and-therapeutic-implications
#15
REVIEW
Eunice Yuen-Ting Lau, Nicole Pui-Yu Ho, Terence Kin-Wah Lee
Tumor consists of heterogeneous cancer cells including cancer stem cells (CSCs) that can terminally differentiate into tumor bulk. Normal stem cells in normal organs regulate self-renewal within a stem cell niche. Likewise, accumulating evidence has also suggested that CSCs are maintained extrinsically within the tumor microenvironment, which includes both cellular and physical factors. Here, we review the significance of stromal cells, immune cells, extracellular matrix, tumor stiffness, and hypoxia in regulation of CSC plasticity and therapeutic resistance...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28337220/paracrine-secreted-frizzled-related-protein-4-inhibits-melanocytes-differentiation-in-hair-follicle
#16
Haiying Guo, Mingxing Lei, Yuhong Li, Yingxin Liu, Yinhong Tang, Yizhan Xing, Fang Deng, Ke Yang
Wnt signaling plays crucial role in regulating melanocyte stem cells/melanocyte differentiation in the hair follicle. However, how the Wnt signaling is balanced to be overactivated to control follicular melanocytes behavior remains unknown. Here, by using immunofluorescence staining, we showed that secreted frizzled-related protein 4 (sFRP4) is preferentially expressed in the skin epidermal cells rather than in melanocytes. By overexpression of sFRP4 in skin cells in vivo and in vitro, we found that sFRP4 attenuates activation of Wnt signaling, resulting in decrease of melanocytes differentiation in the regenerating hair follicle...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28337219/neural-differentiation-in-hdac1-depleted-cells-is-accompanied-by-coilin-downregulation-and-the-accumulation-of-cajal-bodies-in-nucleoli
#17
Jana Krejčí, Soňa Legartová, Eva Bártová
Cajal bodies (CBs) are important compartments containing accumulated proteins that preferentially regulate RNA-related nuclear events, including splicing. Here, we studied the nuclear distribution pattern of CBs in neurogenesis. In adult brains, coilin was present at a high density, but CB formation was absent in the nuclei of the choroid plexus of the lateral ventricles. Cells of the adult hippocampus were characterized by a crescent-like morphology of coilin protein. We additionally observed a 70 kDa splice variant of coilin in adult mouse brains, which was different to embryonic brains and mouse pluripotent embryonic stem cells (mESCs), characterized by the 80 kDa standard variant of coilin...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28326106/in-vivo-assessment-of-stem-cells-for-treating-neurodegenerative-disease-current-approaches-and-future-prospects
#18
REVIEW
Byeong-Wook Song
In recent years, stem cell-related therapies have been widely applied for treating neurodegenerative disease. Despite their potential, stem cell tracking and imaging techniques for the evaluation of in vivo proof-of-concept (PoC) therapies have not been sufficiently represented in the research area. This review summarizes the recent approaches that have been used for tracking and imaging engrafted stem cells in vivo. Furthermore, we introduce tissue clearing technology that can be applied to develop three-dimensional in vivo experiments...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28326105/paracrine-effects-of-bone-marrow-mononuclear-cells-in-survival-and-cytokine-expression-after-90-partial-hepatectomy
#19
Carlos Oscar Kieling, Carolina Uribe-Cruz, Mónica Luján López, Alessandro Bersch Osvaldt, Themis Reverbel da Silveira, Ursula Matte
Acute liver failure is a complex and fatal disease. Cell-based therapies are a promising alternative therapeutic approach for liver failure due to relatively simple technique and lower cost. The use of semipermeable microcapsules has become an interesting tool for evaluating paracrine effects in vivo. In this study, we aimed to assess the paracrine effects of bone marrow mononuclear cells (BMMC) encapsulated in sodium alginate to treat acute liver failure in an animal model of 90% partial hepatectomy (90% PH)...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28321259/evaluation-of-three-devices-for-the-isolation-of-the-stromal-vascular-fraction-from-adipose-tissue-and-for-asc-culture-a-comparative-study
#20
Jonathan Rodriguez, Anne-Sophie Pratta, Nacira Abbassi, Hugo Fabre, Fanny Rodriguez, Cyrille Debard, Jacqueline Adobati, Fabien Boucher, Frédéric Mallein-Gerin, Céline Auxenfans, Odile Damour, Ali Mojallal
Adipose-derived stem/stromal cells (ASCs) reside in the stromal vascular fraction (SVF) of adipose tissue (AT) and can be easily isolated. However, extraction of the SVF from lipoaspirate is a critical step in generating ASC, and semiautomated devices have been developed to enhance the efficacy and reproducibility of the outcomes and to decrease manipulation and contamination. In this study, we compared the reference method used in our lab for SVF isolation from lipoaspirate, with three medical devices: GID SVF-1™, Puregraft™, and Stem...
2017: Stem Cells International
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