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Stem cell research

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https://www.readbyqxmd.com/read/28922350/stem-cells-and-cell-based-therapies-for-cerebral-palsy-a-call-for-rigor
#1
REVIEW
Lauren L Jantzie, Joseph Scafidi, Shenandoah Robinson
Cell-based therapies hold significant promise for infants at risk for cerebral palsy (CP) from perinatal brain injury (PBI). PBI leading to CP results from multi-faceted damage to neural cells. Complex developing neural networks are injured by neural cell damage plus unique perturbations in cell signaling. Given that cell-based therapies can simultaneously repair multiple injured neural components during critical neurodevelopmental windows, these interventions potentially offer efficacy for patients with CP...
September 18, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28922348/stem-cell-biology-and-regenerative-medicine-for-neonatal-lung-diseases
#2
REVIEW
Martin Kang, Bernard Th├ębaud
Lung diseases remain one of the main causes of morbidity and mortality in neonates. Cell therapy and regenerative medicine have the potential to revolutionize the management of life-threatening and debilitating lung diseases that currently lack effective treatments. Over the past decade, the repair capabilities of stem/progenitor cells has been harnessed to prevent/rescue lung damage in experimental neonatal lung diseases. Mesenchymal stromal cells and amnion epithelial cells exert pleiotropic effects and represent ideal therapeutic cells for bronchopulmonary dysplasia, a multifactorial disease...
September 18, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28921810/bones-morphogenic-protein-4-and-retinoic-acid-combined-treatment-comparative-analysis-for-in-vitro-differentiation-potential-of-murine-mesenchymal-stem-cells-derived-from-bone-marrow-and-adipose-tissue-into-germ-cells
#3
Maryam H Shirzeily, Neda Khanlarkhani, Fardin Amidi, Farshad H Shirzeily, Fereydoon S Aval, Aligholi Sobhani
Nowadays, infertility is no longer considered as an unsolvable disorder due to progresses in germ cells derived from stem lineage with diverse origins. Technical and ethical challenges push researchers to investigate various tissue sources to approach more efficient gametes. The purpose of the current study is to investigate the efficacy of a combined medium, retinoic acid (RA) together with Bone Morphogenic Protein-4 (BMP4), on differentiation of Bone Marrow Mesenchymal Stem Cells (BMMSCs) and adipose-derived mesenchymal stem cells (ADMSCs) into germ cells...
September 18, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28921804/early-blood-stream-infection-following-allogeneic-hematopoietic-stem-cell-transplantation-is-a-risk-factor-for-acute-grade-iii-iv-gvhd-in-children-and-adolescents
#4
Hirozumi Sano, Joseph A Hilinski, Muna Qayed, Kristy Applegate, Joanna G Newton, Benjamin Watkins, Kuang-Yueh Chiang, John Horan
BACKGROUND: Graft-versus-host disease (GVHD) remains a major cause of mortality and morbidity in allogeneic hematopoietic stem cell transplantation (HSCT). In adults, early blood stream infection (BSI) and acute GVHD (AGVHD) have been reported to be related. The impact of BSI on risk for AGVHD, however, has not been assessed in pediatric patients. PROCEDURE: We conducted a retrospective analysis to test the hypothesis that early BSI (before day +30) predisposes allogeneic pediatric transplant patients to severe AGVHD...
September 17, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28921309/lung-cancer-associated-brain-metastasis-molecular-mechanisms-and-therapeutic-options
#5
REVIEW
Meysam Yousefi, Tayyeb Bahrami, Arash Salmaninejad, Rahim Nosrati, Parisa Ghaffari, Seyed H Ghaffari
BACKGROUND: Lung cancer is the most common cause of cancer-related mortality in humans. There are several reasons for this high rate of mortality, including metastasis to several organs, especially the brain. In fact, lung cancer is responsible for approximately 50% of all brain metastases, which are very difficult to manage. Understanding the cellular and molecular mechanisms underlying lung cancer-associated brain metastasis brings up novel therapeutic promises with the hope to ameliorate the severity of the disease...
September 18, 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/28920716/transposons-moving-forward-from-preclinical-studies-to-clinical-trials
#6
Jaitip Tipanee, Thierry VandenDriessche, Marinee K Chuah
Transposons have emerged as promising vectors for gene therapy that can potentially overcome some of the limitations of commonly used viral vectors. Transposons stably integrate into the target cell genome, enabling persistent expression of therapeutic genes. Transposons have evolved from being used as basic tools in biomedical research to bona fide therapeutics. Currently, the most promising transposons for gene therapy applications are derived from Sleeping Beauty (SB) or piggyBac (PB). Stable transposition requires co-delivery of the transposon DNA with the corresponding transposase gene, mRNA, or protein...
August 22, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28920062/into-the-eyes-of-bone-marrow-derived-mesenchymal-stem-cells-therapy-for-myocardial-infarction-and-other-diseases
#7
REVIEW
Jian-Rui Li, Ting-Ting Qu
Applications of bone marrow-derived mesenchymal stem cells (BM-MSCs) have been documented for diseases occur in the sports system, the central nervous system, the cardiovascular system etc. However, poor viability of donor stem cells after transplantation limits their therapeutic efficiency. Although the autophagy theory has been reported, the underlying mechanisms are still poorly understood. Isolation and culture methods of mesenchymal stem cells are currently concentrate on four ways. Overall, BM-MSCs have both important research significance and clinical application value in cell replacement therapy, gene therapy and reconstruction of tissues as well as organs especially for myocardial infarction (MI)...
2017: Stem Cell Investigation
https://www.readbyqxmd.com/read/28919488/mast-cells-derived-from-human-induced-pluripotent-stem-cells-are-useful-for-allergen-tests
#8
Akira Igarashi, Yasuhiro Ebihara, Tomoaki Kumagai, Hiroyuki Hirai, Kinya Nagata, Kohichiro Tsuji
BACKGROUND: Several methods have been developed to detect allergen-specific IgE in sera. The passive IgE sensitization assay using human IgE receptor-expressing rat cell line RBL-2H3 is a powerful tool to detect biologically active allergen-specific IgE in serum samples. However, one disadvantage is that RBL-2H3 cells are vulnerable to high concentrations of human sera. Only a few human cultured cell lines are easily applicable to the passive IgE sensitization assay. However, the use of human induced pluripotent stem cells (iPSCs) to generate human mast cells (MCs) has not yet been reported...
September 14, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28918520/derivation-of-human-induced-pluripotent-stem-cell-ipsc-lines-and-mechanism-of-pluripotency-historical-perspective-and-recent-advances
#9
REVIEW
Arvind Chhabra
Derivation of human embryonic stem cell (hES) lines in 1998 was not only a major technological breakthrough in the field of regenerative medicine; it also triggered a passionate debate about the ethical issues associated with the utilization of human embryos for derivation of hESC lines. Successful derivation of induced pluripotent stem cell (iPS) lines from human somatic cells with defined reprogramming factors by Shinya Yamanaka`s group in 2007 was another breakthrough that generated enormous excitement and hope for the development of donor-specific personalized cell replacement therapies (CRT) without the ethical dilemma associated with it...
September 16, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28915235/transamniotic-stem-cell-therapy-trascet-a-novel-strategy-for-the-prenatal-management-of-congenital-anomalies
#10
REVIEW
Dario O Fauza
Transamniotic Stem Cell Therapy, or TRASCET, is an emerging therapeutic concept for the management of congenital anomalies based on the augmentation of the biological role of select populations of stem cells that already occur in the amniotic fluid, for targeted therapeutic benefit. Amniotic fluid-derived mesenchymal stem cells (afMSCs) play a central role in the enhanced ability of the fetus to repair tissue damage. This germane recent finding constitutes the biological foundation for the use of afMSCs in TRASCET...
September 15, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28915233/the-utility-of-stem-cells-in-pediatric-urinary-bladder-regeneration
#11
REVIEW
Philip M Iannaccone, Vasil Galat, Matthew I Bury, Yongchao C Ma, Arun K Sharma
Pediatric patients with a neurogenic urinary bladder caused by developmental abnormalities including spina bifida exhibit chronic urological problems. Surgical management in the form of enterocystoplasty is used to enlarge the bladder but is associated with significant clinical complications. Thus, alternative methods to enterocystoplasty have been explored through the incorporation of stem cells with tissue engineering strategies. Within the context of this review, we will examine the use of bone marrow stem cells and induced pluripotent stem cells (iPSCs) as they relate to bladder regeneration at the anatomic and molecular levels...
September 15, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28914256/mettl3-mettl14-mediated-mrna-n-6-methyladenosine-modulates-murine-spermatogenesis
#12
Zhen Lin, Phillip J Hsu, Xudong Xing, Jianhuo Fang, Zhike Lu, Qin Zou, Ke-Jia Zhang, Xiao Zhang, Yuchuan Zhou, Teng Zhang, Youcheng Zhang, Wanlu Song, Guifang Jia, Xuerui Yang, Chuan He, Ming-Han Tong
Spermatogenesis is a differentiation process during which diploid spermatogonial stem cells (SSCs) produce haploid spermatozoa. This highly specialized process is precisely controlled at the transcriptional, posttranscriptional, and translational levels. Here we report that N(6)-methyladenosine (m(6)A), an epitranscriptomic mark regulating gene expression, plays essential roles during spermatogenesis. We present comprehensive m(6)A mRNA methylomes of mouse spermatogenic cells from five developmental stages: undifferentiated spermatogonia, type A1 spermatogonia, preleptotene spermatocytes, pachytene/diplotene spermatocytes, and round spermatids...
September 15, 2017: Cell Research
https://www.readbyqxmd.com/read/28914209/knee-ligament-injury-and-the-clinical-application-of-tissue-engineering-techniques-a-systematic-review
#13
Thomas Riley, Reza Mafi, Pouya Mafi, Wasim Khan
Background The incidence of knee ligament injury is increasing and represents a significant cost to healthcare providers. Current interventions include tissue grafts, suture repair and non-surgical management. These techniques have demonstrated good patient outcomes but have been associated graft rejection, infection, long term immobilization and reduced joint function. The limitations of traditional management strategies have prompted research into tissue engineering of knee ligaments. Objective This paper aims to evaluate whether tissue engineering of knee ligaments offers a viable alternative in the clinical management of knee ligament injuries...
September 15, 2017: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28913777/diabetes-and-the-small-intestine
#14
REVIEW
Jonathan Gotfried, Stephen Priest, Ron Schey
Diabetes mellitus (DM) and its associated complications are becoming increasingly prevalent. Gastrointestinal symptoms associated with diabetes is known as diabetic enteropathy (DE) and may manifest as either diarrhea, fecal incontinence, constipation, dyspepsia, nausea, and vomiting or a combination of symptoms. The long-held belief that vagal autonomic neuropathy is the primary cause of DE has recently been challenged by newer theories of disease development. Specifically, hyperglycemia and the resulting oxidative stress on neural networks, including the nitrergic neurons and interstitial cells of Cajal (ICC), are now believed to play a central role in the development of DE...
September 15, 2017: Current Treatment Options in Gastroenterology
https://www.readbyqxmd.com/read/28912615/why-the-moratorium-on-human-animal-chimera-research-should-not-be-lifted
#15
Alan Moy
The National Institutes of Health (NIH) announced its plans to lift its moratorium on funding research that involves injecting human embryonic stem cells into animal embryos, which would allow for the creation of part-human and part-animal organisms known as chimeras. The NIH allowed only one month to receive public comments in the midst of a presidential election campaign. Lifting the moratorium means that, for the first time, the federal government will begin spending taxpayer dollars on the creation and manipulation of new organisms that would blur the line between humans and animals...
August 2017: Linacre Quarterly
https://www.readbyqxmd.com/read/28912015/stem-cell-based-peripheral-vascular-regeneration
#16
Yasuyuki Fujita, Atsuhiko Kawamoto
Chronic critical limb ischemia (CLI) represents an end-stage manifestation of peripheral arterial disease (PAD). CLI patients are at very high risk of amputation and cardiovascular complications, leading to severe morbidity and mortality. Because many patients with CLI are ineligible for conventional revascularization procedures, it is urgently needed to explore alternative strategies to improve blood supply in the ischemic tissue. Although researchers initially focused on gene/protein therapy using proangiogenic growth factors/cytokines, recent discovery of somatic stem/progenitor cells including bone marrow (BM)-derived endothelial progenitor cells (EPCs) and mesenchymal stem cells (MSCs) has drastically developed the field of therapeutic angiogenesis for CLI...
September 11, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28910956/-modulation-of-umbilical-cord-blood-mesenchymal-stem-cells-on-treg-cells-in-the-patients-with-aplastic-anemia
#17
Y N Cao, F Zhou, N X Song, Y Fang, R Guan
Objective: To research the modulation of Umbilical cord blood mesenchymal stem cells on the number and function of Treg cells in the patients with aplastic anemia, as well as the expression of LFA-1 on Treg cells. Methods: A total of 20 newly diagnosed NSAA patients were collected from May 2015 to Jun 2016 in Department of Hematopathy, General Hospital of Jinan Military, and 10 healthy volunteers were recruited as controls. Separation of the patients and controls with peripheral blood mononuclear cells were divided into two groups, including PBMCs culture alone, PBMCs co-culture with UC-MSCs, application of flow cytometry detect respectively the proportion of the Treg cells and the expression of LFA-1 on Treg cells under different culture conditions...
September 12, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28906326/tissue-engineering-strategies-for-auricular-reconstruction
#18
Michael J Schroeder, Mark S Lloyd
Simulating natural characteristics and aesthetics in reconstructed ears has provided a complex 3-dimensional puzzle for those treating patients with microtia. Costochondral grafts remain the gold standard for autologous reconstruction. However, other options such as Medpor and prosthetics are indicated depending on patient circumstances and personal choice. Research into tissue engineering offers an alternative method to a traditional surgical approach that may reduce donor-site morbidity. However, tissue engineering for microtia reconstruction brings new challenges such as cell sourcing, promotion of chondrogenesis, scaffold vascularization, and prevention of scaffold contraction...
September 12, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28906324/pediatric-blastic-plasmacytoid-dendritic-cell-neoplasm-a-systematic-literature-review
#19
Marie Jeong-Min Kim, Ahmed Nasr, Bilaal Kabir, Joseph de Nanassy, Ken Tang, Danielle Menzies-Toman, Donna Johnston, Dina El Demellawy
Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare aggressive hematologic malignancy characterized by frequent skin involvement that most commonly affects older patients. BPDCN is known to have a poor prognosis. Our objective was to assess if outcome and disease prognosis were independently influenced by age when evaluated with clinical presentation, sex, and treatment regimens. We conducted a systematic review to identify BPDCN cases, to compare pediatric BPDCN cases with adult cases. A total of 125 publications were identified detailing 356 cases...
September 12, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28904646/participation-in-a-year-long-cure-embedded-into-major-core-genetics-and-cellular-and-molecular-biology-laboratory-courses-results-in-gains-in-foundational-biological-concepts-and-experimental-design-skills-by-novice-undergraduate-researchers
#20
Marcy A Peteroy-Kelly, Matthew R Marcello, Erika Crispo, Zafir Buraei, Daniel Strahs, Marisa Isaacson, Leslie Jaworski, David Lopatto, David Zuzga
This two-year study describes the assessment of student learning gains arising from participation in a year-long curriculum consisting of a classroom undergraduate research experience (CURE) embedded into second-year, major core Genetics and Cellular and Molecular Biology (CMB) laboratory courses. For the first course in our CURE, students used micro-array or RNAseq analyses to identify genes important for environmental stress responses by Saccharomyces cerevisiae. The students were tasked with creating overexpressing mutants of their genes and designing their own original experiments to investigate the functions of those genes using the overexpression and null mutants in the second CURE course...
2017: Journal of Microbiology & Biology Education: JMBE
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