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https://www.readbyqxmd.com/read/28220575/generation-of-storable-retinal-organoids-and-retinal-pigmented-epithelium-from-adherent-human-ips-cells-in-xeno-free-and-feeder-free-conditions
#1
Sacha Reichman, Amélie Slembrouck, Giuliana Gagliardi, Antoine Chaffiol, Angélique Terray, Céline Nanteau, Anais Potey, Morgane Belle, Oriane Rabesandratana, Jens Duebel, Gael Orieux, Emeline F Nandrot, José-Alain Sahel, Olivier Goureau
Human induced pluripotent stem cells (hiPSCs) are potentially useful in regenerative therapies for retinal disease. For medical applications, therapeutic retinal cells, such as retinal pigmented epithelial (RPE) cells or photoreceptor precursors, must be generated under completely defined conditions. To this purpose, we have developed a two-step xeno-free/feeder-free (XF/FF) culture system to efficiently differentiate hiPSCs into retinal cells. This simple method, relies only on adherent hiPSCs cultured in chemically defined media, bypassing embryoid body formation...
February 20, 2017: Stem Cells
https://www.readbyqxmd.com/read/28212442/ecto-5-nucleotidase-cd73-nt5e-vitamin-d-receptor-and-fgf23-gene-polymorphisms-may-play-a-role-in-the-development-of-calcific-uremic-arteriolopathy-in-dialysis-patients-data-from-the-german-calciphylaxis-registry
#2
Hansjörg Rothe, Vincent Brandenburg, Margot Haun, Barbara Kollerits, Florian Kronenberg, Markus Ketteler, Christoph Wanner
INTRODUCTION: Calciphylaxis/calcific uremic arteriolopathy affects mainly end-stage kidney disease patients but is also associated with malignant disorders such as myeloma, melanoma and breast cancer. Genetic risk factors of calciphylaxis have never been studied before. METHODS: We investigated 10 target genes using a tagging SNP approach: the genes encoding CD73/ ecto-5'-nucleotidase (purinergic pathway), Matrix Gla protein, Fetuin A, Bone Gla protein, VKORC1 (all related to intrinsic calcification inhibition), calcium-sensing receptor, FGF23, Klotho, vitamin D receptor, stanniocalcin 1 (all related to CKD-MBD)...
2017: PloS One
https://www.readbyqxmd.com/read/28210430/growth-kinetics-and-characterization-of-human-dental-pulp-stem-cells-comparison-between-third-molar-and-first-premolar-teeth
#3
Davood Mehrabani, Parisa Mahdiyar, Kianoosh Torabi, Reza Robati, Shahrokh Zare, Mehdi Dianatpour, Amin Tamadon
BACKGROUND: Dental pulp stem cells (DPSCs) play an important role in tissue regeneration. This study compares the growth kinetics and characterization of third molar and first premolar human DPSCs. MATERIAL AND METHODS: Dental pulp tissues were isolated from human first premolar and third molar teeth and were digested by treating them with collagenase type I. Single-cell suspensions from each dental pulp were seeded in T25 culture flasks and the media were replaced every 3 days until 70% confluence...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28210258/human-gingiva-derived-mesenchymal-stem-cells-inhibit-xeno-graft-versus-host-disease-via-cd39-cd73-adenosine-and-ido-signals
#4
Feng Huang, Maogen Chen, Weiqian Chen, Jian Gu, Jia Yuan, Yaoqiu Xue, Junlong Dang, Wenru Su, Julie Wang, Homayoun H Zadeh, Xiaoshun He, Limin Rong, Nancy Olsen, Song Guo Zheng
Mesenchymal stem cells have the capacity to maintain immune homeostasis and prevent autoimmunity. We recently reported that human-derived gingival mesenchymal stem cells (GMSCs) have strong capacity to suppress immune responses and T cell-mediated collagen-induced arthritis in animals. However, it is unclear whether these cells can suppress human T cell-mediated diseases. Here, we used a xenogenic GVHD model in the NOD/SCID mouse, which is a useful preclinical construct for evaluating the therapeutic and translational potential of this approach for applications in human disease...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28205023/low-serum-culture-with-novel-medium-promotes-maxillary-mandibular-bone-marrow-stromal-cell-proliferation-and-osteogenic-differentiation-ability
#5
Fumio Suehiro, Masakazu Ishii, Izumi Asahina, Hiroshi Murata, Masahiro Nishimura
OBJECTIVES: The purpose of this study was to evaluate the effect of low-serum STK2 medium on the isolation and osteogenic differentiation of human maxillary/mandibular bone marrow stromal cells (MBMSCs). MATERIALS AND METHODS: Human MBMSCs were obtained from patients undergoing dental implant treatment. These cells were cultured in serum-free medium or STK2 medium containing 1  % fetal bovine serum (low-serum) or α-MEM containing 10  % fetal bovine serum (control)...
February 16, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28202050/cd73-promotes-proliferation-and-migration-of-human-cervical-cancer-cells-independent-of-its-enzyme-activity
#6
Zhao-Wei Gao, Hui-Ping Wang, Fang Lin, Xi Wang, Min Long, Hui-Zhong Zhang, Ke Dong
BACKGROUND: CD73 has both enzymatic and non-enzymatic functions in cells. As a nucleotidase, CD73 plays its enzymatic function by catalyzing the hydrolysis of AMP into adenosine and phosphate. In addition to this, accumulating data have shown that CD73 is a key regulatory molecule involved in cancer growth and metastasis, but this non-enzymatic function of CD73 in cervical cancer cells has not been well studied. METHODS: CD73 was overexpressed by pcDNA-NT5E expression vector transfection in Hela and SiHa cells...
February 15, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28193736/down-regulation-of-cd73-on-b-cells-of-patients-with-viremic-hiv-correlates-with-b-cell-activation-and-disease-progression
#7
Eun-Seong Kim, Christin Ackermann, Ilona Tóth, Patrick Dierks, Johanna M Eberhard, Raluca Wroblewski, Felix Scherg, Matthias Geyer, Reinhold E Schmidt, Claudia Beisel, Maximilian Bockhorn, Friedrich Haag, Jan van Lunzen, Julian Schulze Zur Wiesch
Recently, alterations of the T cell expression of the ectonucleotidases, CD39 and CD73, during HIV infection have been described. Here, peripheral (n = 70) and lymph nodal B cells (n = 10) of patients with HIV at different stages of disease as well as uninfected individuals were analyzed via multicolor flow cytometry with regard to expression of CD39 and CD73 and differentiation, proliferation, and exhaustion status. Patients with chronic, untreated HIV showed a significantly decreased frequency of CD73-expressing B cells (P < 0...
February 13, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28192180/deletion-of-cd73-in-mice-leads-to-aortic-valve-dysfunction
#8
P Zukowska, B Kutryb-Zajac, A Jasztal, M Toczek, M Zabielska, T Borkowski, Z Khalpey, R T Smolenski, E M Slominska
Aortic stenosis is known to involve inflammation and thrombosis. Changes in activity of extracellular enzyme - ecto-5'-nucleotidase (referred also as CD73) can alter inflammatory and thrombotic responses. This study aimed to evaluate the effect of CD73 deletion in mice on development of aortic valve dysfunction and to compare it to the effect of high-fat diet. Four groups of mice (normal-diet Wild Type (WT), high-fat diet WT, normal diet CD73-/-, high-fat diet CD73-/-) were maintained for 15weeks followed by echocardiographic analysis of aortic valve function, measurement of aortic surface activities of nucleotide catabolism enzymes as well as alkaline phosphatase activity, mineral composition and histology of aortic valve leaflets...
February 10, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28190588/survival-of-the-apical-papilla-and-its-resident-stem-cells-in-a-case-of-advanced-pulpal-necrosis-and-apical-periodontitis
#9
Vanessa Chrepa, Brandon Pitcher, Michael A Henry, Anibal Diogenes
INTRODUCTION: Apical papilla represents a source of an enriched mesenchymal stem cell (MSC) population (stem cells of the apical papilla [SCAPs]) that modulates root development and may participate in regenerative endodontic procedures in immature teeth with pulp necrosis. The characteristics and phenotype of this tissue in the presence of inflammation are largely unknown. The purpose of this study was to characterize a human apical papilla sample that was isolated from an immature tooth with pulp necrosis and apical periodontitis...
February 9, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28177135/unveiling-and-initial-characterization-of-neural-crest-like-cells-in-mesenchymal-populations-from-the-human-periodontal-ligament
#10
L Ramírez-García, R Cevallos, K Gazarian
OBJECTIVE: To identify cells with neural crest properties in mesenchymal populations isolated from human periodontal ligament. BACKGROUND: Evidence from tracing experiments on animal embryos revealed proof that dental tissues are among the homing sites of craniofacial neural crest migratory cells. In humans, similar migratory cells were found in early embryos, but whether these cells are progeny of oral multipotent stem cells needs to be confirmed. Searching for the cells with neural crest characteristics in periodontal ligament mesenchymal populations can lead to a solution to the problem...
February 8, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28174424/targeting-a2-adenosine-receptors-in-cancer
#11
REVIEW
David Allard, Martin Turcotte, John Stagg
Tumor cells use various ways to evade antitumor immune responses. Adenosine, a potent immunosuppressive metabolite, is often found elevated in the extracellular tumor microenvironment. Therefore, targeting adenosine-generating enzymes (CD39 and CD73) or adenosine receptors has emerged as a novel means to stimulate antitumor immunity. In particular, the A2 (A2a and A2b) adenosine receptors exhibit similar immunosuppressive and pro-angiogenic functions, yet have distinct biological roles in cancer. In this review, we describe the common and distinct biological consequences of A2a and A2b adenosine receptor signaling in cancer...
February 8, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28170177/pluripotent-nontumorigenic-adipose-tissue-derived-muse-cells-have-immunomodulatory-capacity-mediated-by-transforming-growth-factor-%C3%AE-1
#12
María L Gimeno, Florencia Fuertes, Andres E Barcala Tabarrozzi, Alejandra I Attorressi, Rodolfo Cucchiani, Luis Corrales, Talita C Oliveira, Mari C Sogayar, Leticia Labriola, Ricardo A Dewey, Marcelo J Perone
Adult mesenchymal stromal cell-based interventions have shown promising results in a broad range of diseases. However, their use has faced limited effectiveness owing to the low survival rates and susceptibility to environmental stress on transplantation. We describe the cellular and molecular characteristics of multilineage-differentiating stress-enduring (Muse) cells derived from adipose tissue (AT), a subpopulation of pluripotent stem cells isolated from human lipoaspirates. Muse-AT cells were efficiently obtained using a simple, fast, and affordable procedure, avoiding cell sorting and genetic manipulation methods...
January 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28165340/targeting-the-adenosine-2a-receptor-enhances-chimeric-antigen-receptor-t-cell-efficacy
#13
Paul A Beavis, Melissa A Henderson, Lauren Giuffrida, Jane K Mills, Kevin Sek, Ryan S Cross, Alexander J Davenport, Liza B John, Sherly Mardiana, Clare Y Slaney, Ricky W Johnstone, Joseph A Trapani, John Stagg, Sherene Loi, Lev Kats, David Gyorki, Michael H Kershaw, Phillip K Darcy
Chimeric antigen receptor (CAR) T cells have been highly successful in treating hematological malignancies, including acute and chronic lymphoblastic leukemia. However, treatment of solid tumors using CAR T cells has been largely unsuccessful to date, partly because of tumor-induced immunosuppressive mechanisms, including adenosine production. Previous studies have shown that adenosine generated by tumor cells potently inhibits endogenous antitumor T cell responses through activation of adenosine 2A receptors (A2ARs)...
February 6, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28158983/cd73-nt5e-is-a-target-of-mir-30a-5p-and-plays-an-important-role-in-the-pathogenesis-of-non-small-cell-lung-cancer
#14
Jianjie Zhu, Yuanyuan Zeng, Wei Li, Hualong Qin, Zhe Lei, Dan Shen, Dongmei Gu, Jian-An Huang, Zeyi Liu
BACKGROUND: CD73 (ecto-5'-nucleotidase) is implicated in the development of many types of cancer. CD73 inhibitors are currently being tested in clinical trials for the treatment of cancer. Understanding the molecular and cellular actions of CD73 inhibitors is the key to improving this line of therapy. METHODS: Quantitative real-time PCR (qRT-PCR) was used to detect the expression of CD73 and miR-30a-5p; Western blot and immunohistochemical assays were used to investigate the levels of CD73 and other proteins...
February 3, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28127326/assessment-of-surface-markers-derived-from-human-periodontal-ligament-stem-cells-an-in-vitro-study
#15
Zainab Kadkhoda, Sahar Chokami Rafiei, Bahare Azizi, Ahad Khoshzaban
OBJECTIVES: Periodontal tissue regeneration for treatment of periodontal disease has not yet been mastered in tissue engineering. Stem cells, scaffold, and growth factors are the three main basic components of tissue engineering. Periodontal ligament (PDL) contains stem cells; however, the number, potency and features of these cells have not yet been understood. This study aimed to isolate and characterize the properties of PDL stem cells. MATERIALS AND METHODS: In this experimental study, samples were isolated from the PDL of extracted teeth of five patients and then stained immunohistochemically for detection of cell surface markers...
September 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28120532/extracellular-nucleotide-hydrolysis-in-dermal-and-limbal-mesenchymal-stem-cells-a-source-of-adenosine-production
#16
Liliana I Sous Naasani, Cristiano Rodrigues, Rafael Paschoal de Campos, Liziane Raquel Beckenkamp, Isabele C Iser, Ana Paula Santin Bertoni, Márcia R Wink
Human Limbal (L-MSCs) and Dermal Mesenchymal Stem Cell (D-MSCs) possess many properties that increase their therapeutic potential in ophthalmology and dermatology. It is known that purinergic signaling plays a role in many aspects of mesenchymal stem cells physiology. They release and respond to purinergic ligands, altering proliferation, migration, differentiation and apoptosis. Therefore, more information on these processes would be crucial for establishing future clinical applications using their differentiation potential, but without undesirable side effects...
January 24, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28112985/comparison-of-human-amniotic-chorionic-and-umbilical-cord-multipotent-mesenchymal-stem-cells-regarding-their-capacity-for-differentiation-toward-female-germ-cells
#17
Hamid Reza Asgari, Mohammad Akbari, Hossein Yazdekhasti, Zahra Rajabi, Shadan Navid, Fereshte Aliakbari, Niloufar Abbasi, Freidon Sargolzaei Aval, Alireza Shams, Mehdi Abbasi
Placenta harbors a plentiful source of various cells with stem cells or stem-like cell properties, which can be used in therapeutic procedures and research. Mesenchymal stem cells (MSCs) have attracted much attention due to their specific differentiation potential and tolerogenic properties. MSCs have been isolated from different parts of placenta; however, in this study, we isolated MSCs from amnion and chorion membrane, as well as umbilical cord (Wharton's jelly [WJ]) and compared their capacity regarding differentiation toward female germ cells under influence of 10 ng/mL BMP4...
February 2017: Cellular Reprogramming
https://www.readbyqxmd.com/read/28111965/identification-of-cd4-t-cell-derived-cd161-cd39-and-cd39-cd73-microparticles-as-new-biomarkers-for-rheumatoid-arthritis
#18
Wenqiang Fan, Wenxiang Wang, Jie Wu, Ling Ma, Jinyan Guo
AIM: This study aimed to identify CD4(+) T-cell-derived microparticles (MPs) and investigate their roles in rheumatoid arthritis (RA). METHODS: Synovial fluids from 34 RA, 33 osteoarthritis patients and 42 healthy individuals were analyzed by flow cytometry. Human fibroblast-like synoviocytes and peripheral blood mononuclear cells were cultured with or without isolated MPs, chemokines and cytokines were measured by ELISA. RESULTS: CD4(+)CD161(+)CD39(+) and CD4(+)CD39(+)CD73(+) MPs were abundantly present in RA patients, which were positively or negatively correlated with RA features, respectively...
February 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/28109162/odontoblastic-differentiation-of-dental-pulp-stem-cells-from-healthy-and-carious-teeth-on-an-original-pcl-based-3d-scaffold
#19
A Louvrier, E Euvrard, L Nicod, G Rolin, F Gindraux, L Pazart, C Houdayer, P Y Risold, F Meyer, C Meyer
AIMS: To isolate and characterize Dental Pulp Stem Cells (DPSCs) obtained from carious and healthy mature teeth extracted when conservative treatment was not possible or for orthodontic reasons; to evaluate the ability of DPSCs to colonize, proliferate, and differentiate into functional odontoblast-like cells when cultured onto a polycaprolactone cone made by jet-spraying and prototyped into a design similar to a gutta-percha cone. METHODOLOGY: DPSCs were obtained from 9 carious and 12 healthy mature teeth...
January 21, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28109148/-rat-bone-marrow-mesenchymal-stem-cells-promote-apoptosis-and-inhibit-proliferation-and-migration-of-rsc96-cells
#20
Yongbin Ma, Suohua Ge, Dan Zhou, Huanyan Zhang, Luyang Sun, Xuefeng Wang, Jianhua Su
Objective To investigate the effect of rat bone marrow mesenchymal stem cells (BMSCs) on the proliferation and migration of rat RSC96 Schwann cells in vitro. Methods BMSCs of Sprague Dawley (SD) rats were isolated by bone marrow cell adherent method. The morphology of the third generation of BMSCs was observed by inverted microscopy. The cell surface antigen makers CD19, CD34, CD73, CD105 were detected by flow cytometry. The third-passage BMSCs differentiated into osteoblasts and adipocytes after exposed to bone-inducing and lipid-inducing media for 3 and 2 weeks, respectively, and then were identified by oil red O and alkaline phosphatase staining...
February 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
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