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International Journal of Stem Cells

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https://www.readbyqxmd.com/read/29291600/pd-l1-expression-on-circulating-cd34%C3%AF-hematopoietic-stem-cells-closely-correlated-with-t-cell-apoptosis-in-chronic-hepatitis-c-infected-patients
#1
Hussein Abdellatif, Gamal Shiha
Background and Objectives: Lack of understanding of the interplay between hematopoietic stem cells (HSCs) and the immune system has severely hampered stem cell research. Programmed death-1 (PD-L1) has been reported on parenchymal cells in patients with chronically inflamed livers and found to play an essential role in T cell homeostasis regulation. However, the bidirectional interaction between HSCs and lymphocytes remains elusive. Here, we aimed to get more insight into circulating CD34+ HSCs PD-L1 expression and T cell apoptosis in chronic HCV infected patients...
December 31, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/29084422/histological-evaluation-of-experimentally-induced-critical-size-defect-skin-wounds-using-exosomal-solution-of-mesenchymal-stem-cells-derived-microvesicles
#2
Omar S El-Tookhy, Ashraf A Shamaa, Gehan G Shehab, Ahmed N Abdallah, Omnia M Azzam
Background and Objectives: The present study investigated whether MSCs derived microvesicles (MVs) or (Exosomes) can exert therapeutic effects on an experimental model of cutaneous injury and explored the underlying involving mechanisms. Methods and Results: Three bilateral full thickness circular wounds were created on the back of two groups of dogs using 2-cm dermal punch. The wounds were at least 2.5 cm apart. Saline was subcutaneously injected in 4 places around each wound area in group-I (control), whereas an equal volume of exosomal solution of MSCs derived MVs was similarly injected in group-II...
October 31, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/29084421/hepatogenic-differentiation-capacity-of-human-wharton-s-jelly-mesenchymal-stem-cell-in-a-co-culturing-system-with-endothelial-cells-in-matrigel-collagen-scaffold-in-the-presence-of-fetal-liver-extract
#3
Zahra Khodabandeh, Zahra Vojdani, Tahereh Talaei-Khozani, Soghra Bahmanpour
Background: Human Wharton's jelly mesenchymal stem cells (HWJMSCs) isolated from medical waste product can be considered as an accessible source of cells in regenerative medicine. Stem cell-derived hepatocytes have poor function and need appropriate niche to reconstruct the liver structure. Therefore, we attempted to find a novel approach in differentiating HWJMSCs into functional hepatic cells using 3D culture conditions and liver extract that recapitulates vital stage in liver development...
October 31, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/29186654/treatment-with-allogenic-mesenchymal-stromal-cells-in-a-murine-model-of-systemic-lupus-erythematosus
#4
Chiara Tani, Sabrina Vagnani, Linda Carli, Francesca Querci, Anja A Kühl, Simone Spieckermann, Constanze Pamela Cieluch, Simone Pacini, Rita Fazzi, Marta Mosca
Objective: Pre-clinical and uncontrolled studies in patients with systemic lupus erythematosus (SLE) showed that mesenchymal stromal cells (MSCs) have a potential therapeutic role in refractory cases. The optimal therapeutic strategy in these patients remain to be elucidated. Our aim was to test the hypothesis that repeated administrations of 1×106/kg body weight of allogenic MSCs, that is a significantly lower dosage with respect to the fixed 1×106 MSC used in animal models, can be effective in improving the clinical course of a murine SLE model...
November 30, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/29186653/mesenchymal-stem-cell-differentiation-into-adipocytes-is-equally-induced-by-insulin-and-proinsulin-in-vitro
#5
Andreas Pfützner, Dorothee Schipper, Andreas Pansky, Claudia Kleinfeld, Barbara Roitzheim, Edda Tobiasch
Background and Objectives: In advanced β-cell dysfunction, proinsulin is increasingly replacing insulin as major component of the secretion product. It has been speculated that proinsulin has at least the same adipogenic potency than insulin, leading to an increased tendency of lipid tissue formation in patients with late stage β-cell dysfunction. Methods and Results: Mesenchymal stem cells obtained from liposuction material were grown in differentiation media containing insulin (0...
November 30, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/29186652/combination-of-obestatin-and-bone-marrow-mesenchymal-stem-cells-prevents-aggravation-of-endocrine-pancreatic-damage-in-type-ii-diabetic-rats
#6
Noha I Hussien, Nesrine Ebrahim, Ola M Mohammed, Dina Sabry
One of the new promising therapies in treatment of diabetes mellitus is mesenchymal stem cells (MSCs) which have an interesting therapeutic potentiality based on their paracrine effect and transdifferentiation potentiality. Also obestatin improves the generation of functional β cells/islet-like cell clusters in vitro, suggesting implications for cell-based replacement therapy in diabetes. So the aim of this study was to evaluate the effect of combination of both MSCs and obestatin on an experimental model of type II diabetes mellitus (T2DM)...
November 30, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28844129/glaucoma-stem-cells-and-gene-therapy-where-are-we-now
#7
REVIEW
Karim Daliri, Alexander V Ljubimov, Seyedhossein Hekmatimoghaddam
Glaucoma is the second most common cause of blindness, affecting 70∼80 million people around the world. The death of retinal ganglion cells (RGCs) is the main cause of blindness related to this disease. Current therapies do not provide enough protection and regeneration of RGCs. A novel opportunity for treatment of glaucoma is application of technologies related to stem cell and gene therapy. In this perspective we will thus focus on emerging approaches to glaucoma treatment including stem cells and gene therapy...
November 30, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28844130/proteomic-analysis-of-human-adipose-derived-stem-cells-during-small-molecule-chemical-stimulated-pre-neuronal-differentiation
#8
Jerran Santos, Bruce K Milthorpe, Benjamin R Herbert, Matthew P Padula
Background: Adipose derived stem cells (ADSCs) are acquired from abdominal liposuction yielding a thousand fold more stem cells per millilitre than those from bone marrow. A large research void exists as to whether ADSCs are capable of transdermal differentiation toward neuronal phenotypes. Previous studies have investigated the use of chemical cocktails with varying inconclusive results. Methods: Human ADSCs were treated with a chemical stimulant, beta-mercaptoethanol, to direct them toward a neuronal-like lineage within 24 hours...
August 31, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28844128/a-simple-method-to-isolate-and-expand-human-umbilical-cord-derived-mesenchymal-stem-cells-using-explant-method-and-umbilical-cord-blood-serum
#9
Ghmkin Hassan, Issam Kasem, Chadi Soukkarieh, Majd Aljamali
Background and Objectives: Mesenchymal stem cells (MSCs) are multipotent stem cells that can be isolated from umbilical cords and are therapeutically used because of their ability to differentiate into various types of cells, in addition to their immunosuppressive and anti-inflammatory properties. Fetal bovine serum (FBS), considered as the standard additive when isolating and culturing MSCs, has a major limitation related to its animal origin. Here, we employed a simple and economically efficient protocol to isolate MSCs from human umbilical cord tissues without using digestive enzymes and replacing FBS with umbilical cord blood serum (CBS)...
August 31, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28844127/direct-conversion-of-human-umbilical-cord-blood-into-induced-neural-stem-cells-with-sox2-and-hmga2
#10
Jae-Jun Kim, Ji-Hee Shin, Kyung-Rok Yu, Byung-Chul Lee, Insung Kang, Jin Young Lee, Da-Hyun Kim, Yoojin Seo, Hyung-Sik Kim, Soon Won Choi, Kyung-Sun Kang
Recent advances have shown the direct reprogramming of mouse and human fibroblasts into induced neural stem cells (iNSCs) without passing through an intermediate pluripotent state. Thus, direct reprogramming strategy possibly provides a safe and homogeneous cellular platform. However, the applications of iNSCs for regenerative medicine are limited by the restricted availability of cell sources. Human umbilical cord blood (hUCB) cells hold great potential in that immunotyped hUCB units can be immediately obtained from public banks...
August 31, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28844126/the-effect-of-different-routes-of-injection-of-bone-marrow-mesenchymal-stem-cells-on-parotid-glands-of-rats-receiving-cisplatin-a-comparative-study
#11
Eman Hany, Mohammed A Sobh, Mazen T Abou ElKhier, Heba M ElSabaa, Ahmed R Zaher
Background and Objectives: Cisplatin is a powerful antitumor chemotherapeutic agent that is widely used in the treatment of many cancers but it has many side effects on many organs including salivary glands. Bone marrow is considered to be a rich environment that comprises many types of stem cells of which BMSCs (Bone marrow mesenchymal stem cells) are the most studied with potentiality to differentiate into many cell types. This study was conducted to evaluate the effect of different routes of injection of BMSCs on parotid glands of rats receiving cisplatin...
August 31, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28844125/stem-cell-therapy-for-avascular-necrosis-of-femoral-head-in-sickle-cell-disease-report-of-11-cases-and-review-of-literature
#12
Mir Sadat-Ali, Md Q Azam, Ezzat M Elshabouri, Ahmad M Tantawy, Sadananda Acharya
Background and Objective: Sickle cell disease (SCD) is quite common in eastern Saudi Arabia and Avascular necrosis of femoral head (ANFH) occurs in 30% of the young patients leading to early joint arthroplasty. This study was conducted to assess the benefits of injection of osteoblasts in the avascular lesions of the head of femur. Patients and Methods: A preset technique was used, 10 CC of bone marrow aspiration was performed under local anesthesia and aseptic technique...
August 31, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28531915/bone-marrow-stem-cells-anti-liver-fibrosis-potency-inhibition-of-hepatic-stellate-cells-activity-and-extracellular-matrix-deposition
#13
Ervina Julien Sitanggang, Radiana Dhewayani Antarianto, Sri Widia A Jusman, Jeanne Adiwinata Pawitan, Ahmad Aulia Jusuf
Transplantation of bone marrow derived stem cells (BMSCs) has been reported inhibits liver fibrosis. Several in vitro studies by co-culturing BMSCs and hepatic stellate cells (HSCs) indirectly or directly in 2D models showed inhibition of HSC as the key player in liver fibrosis. In this study, we investigated direct effect of BMSCs on HSCs by co-culturing BMSCs and HSCs in 3D model as it represents the liver microenvironment with intricate cell-cell and cell-matrix interactions. Primary isolated rat HSCs and BMSCs were directly co-cultured at 1:1 ratio with hanging drop method...
May 30, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28531914/lineage-specific-expression-of-mir-200-family-in-human-embryonic-stem-cells-during-in-vitro-differentiation
#14
Yeji Kim, Nury Kim, Sang-Wook Park, Hyemin Kim, Han-Jin Park, Yong-Mahn Han
Although microRNAs have emerged as key regulators in diverse cellular processes, the roles of microRNAs are poorly understood in human embryonic stem cells (hESCs) during differentiation into specialized cell types. In this study, we used a microRNA array with 799 human microRNA probes to examine the expression profiles of microRNAs in hESCs during differentiation into endodermal and mesodermal lineages in vitro. Among the microRNAs analyzed, 7 and 20 microRNAs were enriched in the developmental process of hESCs into mesodermal and endodermal lineages, respectively...
May 30, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28531913/methods-of-isolation-and-characterization-of-stem-cells-from-different-regions-of-oral-cavity-using-markers-a-systematic-review
#15
REVIEW
Kavarthapu Avinash, Sankari Malaippan, Jayakumar Nadathur Dooraiswamy
Background: Periodontitis is a destructive inflammatory disorder of the periodontium caused by the destruction of periodontal tissues namely the PDL, cementum, alveolar bone, and gingiva. Once these tissues are lost, the foremost goal of periodontal therapy is to regenerate the diseased tissues if possible to their original form, architecture, and function. Various regenerative procedures were employed and still a gap was found in achieving the goal. As stem cells are characterized by their ability to self-renew and differentiate to produce specialized cells, there could be a possibility of using them for regenerative therapy...
May 30, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28531912/from-bench-to-market-preparing-human-pluripotent-stem-cells-derived-cardiomyocytes-for-various-applications
#16
REVIEW
Sung-Hwan Moon, Daekyeong Bae, Taek-Hee Jung, Eun-Bin Chung, Young-Hoon Jeong, Soon-Jung Park, Hyung-Min Chung
Human cardiomyocytes (CMs) cease to proliferate and remain terminally differentiated thereafter, when humans reach the mid-20s. Thus, any damages sustained by myocardium tissue are irreversible, and they require medical interventions to regain functionality. To date, new surgical procedures and drugs have been developed, albeit with limited success, to treat various heart diseases including myocardial infarction. Hence, there is a pressing need to develop more effective treatment methods to address the increasing mortality rate of the heart diseases...
May 30, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28446006/trending-speculations-of-tumor-initiating-cells-in-squamous-cell-cancers-of-head-and-neck
#17
REVIEW
Wasim Kamate, Rajendra Baad, Nupura Vibhute, Uzma Belgaumi, Vidya Kadashetti, Sushma Gugwad
Tumor-initiating cells are a diminutive subpopulation of stem cells that have ability of long term self-renewal and generation of varied traits of tumor cell population. Understanding the concept of tumor-initiating cells may have a great implicative intimation for our comprehension of cancer pathobiology and for the delineation of new therapies directed towards these stem cells. The present review is an endeavor to conceptualize the role of tumor-initiating cells in the Squamous Cell Cancers (SCC) of head and neck, their role in tumorigenesis and the possible supplementary approach in the latest treatment modalities...
May 30, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28446005/cardioprotective-effects-of-wharton-jelly-derived-mesenchymal-stem-cell-transplantation-in-a-rodent-model-of-myocardial-injury
#18
Taghrid Gaafar, Wael Attia, Shereen Mahmoud, Dina Sabry, Osama Abdel Aziz, Dina Rasheed, Hala Hamza
Background: Whartons jelly-derived mesenchymal stem cells are a valuable alternative source that possess multipotent properties, easy to obtain and available in large scale compared to BMMSCs. We investigated the possibility of cardiac function improvement post isoproterenol induced cardiac injury in a rat model following human WJMSCs transplantation. Materials and Methods: MSCs were extracted and cultured from cord WJ, characterized by morphology, Immunophenotyping and differentiation to osteoblast and adipocytes...
May 30, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28446004/conditioned-medium-derived-from-salidroside-pretreated-mesenchymal-stem-cell-culture-ameliorates-mouse-lipopolysaccharide-induced-cerebral-neuroinflammation-histological-and-immunohistochemical-study
#19
Zeinab M El Maadawi
Background and Objectives: Neuroinflammation is involved in the pathogenesis of neurodegenerative disorders. Conditioned medium (CM) derived from bone marrow mesenchymal stem cells (MSCs) revealed substantial benefits due to its rich content of trophic factors. Salidroside (Sal), extracted from Rhodiola rosea, is known for its anti-inflammatory and neuroprotective effects. This study was designed to investigate the effect of Sal pretreated CM (CM-Sal) derived from bone marrow MSCs in lipopolysaccharide (LPS) induced neuroinflammation...
May 30, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28446003/effects-of-canine-and-murine-mesenchymal-stromal-cell-transplantation-on-peripheral-nerve-regeneration
#20
Diego Noe Rodriguez Sanchez, Matheus Bertanha, Thiago Dias Fernandes, Luiz Antônio de Lima Resende, Elenice Deffune, Rogério Martins Amorim
Background and Objectives: Maintaining a permissive microenvironment is essential for adequate nerve regeneration. Cell-based therapy has the potential based cell replacement and promotion of axonal growth. The adipose tissue derived mesenchymal stromal cells (Ad-MSC) attract interest because neuroregenerative and anti-inflammatory properties. The aim of this study was to evaluate the effects of canine and murine Ad-MSC transplantation on the sciatic nerve regeneration. Methods: Forty Wistar rats were divided randomly into: control group - CG (n=8); denervated group - DG (n=8); decellularized vein group - VG (n=8); decellularized vein+canine MSC-cMSC (n=8); descellularized vein+murine MSC-mMSC (n=8)...
May 30, 2017: International Journal of Stem Cells
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