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regenerative medicine with stem cells

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https://www.readbyqxmd.com/read/29164105/platelet-rich-plasma-derived-growth-factors-contribute-to-stem-cell-differentiation-in-musculoskeletal-regeneration
#1
REVIEW
Yun Qian, Qixin Han, Wei Chen, Jialin Song, Xiaotian Zhao, Yuanming Ouyang, Weien Yuan, Cunyi Fan
Stem cell treatment and platelet-rich plasma (PRP) therapy are two significant issues in regenerative medicine. Stem cells such as bone marrow mesenchymal stem cells, adipose-derived stem cells and periodontal ligament stem cells can be successfully applied in the field of tissue regeneration. PRP, a natural product isolated from whole blood, can secrete multiple growth factors (GFs) for regulating physiological activities. These GFs can stimulate proliferation and differentiation of different stem cells in injury models...
2017: Frontiers in Chemistry
https://www.readbyqxmd.com/read/29157981/foxo1-inhibition-promotes-differentiation-of-human-embryonic-stem-cells-into-insulin-producing-cells
#2
Fei Yu, Rui Wei, Jin Yang, Junling Liu, Kun Yang, Haining Wang, Yiming Mu, Tianpei Hong
Insulin-producing cells (IPCs) derived from human embryonic stem cells (hESCs) hold great potential for cell transplantation therapy in diabetes. Tremendous progress has been made in inducing differentiation of hESCs into IPCs in vitro, of which definitive endoderm (DE) protocol mimicking foetal pancreatic development has been widely used. However, immaturity of the obtained IPCs limits their further applications in treating diabetes. Forkhead box O1 (FoxO1) is involved in the differentiation and functional maintenance of murine pancreatic β cells, but its role in human β cell differentiation is under elucidation...
November 17, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/29156629/reconstruction-of-craniomaxillofacial-bone-defects-using-tissue-engineering-strategies-with-injectable-and-non-injectable-scaffolds
#3
REVIEW
Bipin Gaihre, Suren Uswatta, Ambalangodage C Jayasuriya
Engineering craniofacial bone tissues is challenging due to their complex structures. Current standard autografts and allografts have many drawbacks for craniofacial bone tissue reconstruction; including donor site morbidity and the ability to reinstate the aesthetic characteristics of the host tissue. To overcome these problems; tissue engineering and regenerative medicine strategies have been developed as a potential way to reconstruct damaged bone tissue. Different types of new biomaterials; including natural polymers; synthetic polymers and bioceramics; have emerged to treat these damaged craniofacial bone tissues in the form of injectable and non-injectable scaffolds; which are examined in this review...
November 20, 2017: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/29155789/efficient-generation-and-editing-of-feeder-free-ipscs-from-human-pancreatic-cells-using-the-crispr-cas9-system
#4
Anjali Nandal, Barbara Mallon, Bhanu P Telugu
Embryonic and induced pluripotent stem cells can self-renew and differentiate into multiple cell types of the body. The pluripotent cells are thus coveted for research in regenerative medicine and are currently in clinical trials for eye diseases, diabetes, heart diseases, and other disorders. The potential to differentiate into specialized cell types coupled with the recent advances in genome editing technologies including the CRISPR/Cas system have provided additional opportunities for tailoring the genome of iPSC for varied applications including disease modeling, gene therapy, and biasing pathways of differentiation, to name a few...
November 8, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29155703/modeling-amyloid-%C3%AE-42-toxicity-and-neurodegeneration-in-adult-zebrafish-brain
#5
Prabesh Bhattarai, Alvin Kuriakose Thomas, Mehmet Ilyas Cosacak, Christos Papadimitriou, Violeta Mashkaryan, Yixin Zhang, Caghan Kizil
Alzheimer's disease (AD) is a debilitating neurodegenerative disease in which accumulation of toxic amyloid-β42 (Aβ42) peptides leads to synaptic degeneration, inflammation, neuronal death, and learning deficits. Humans cannot regenerate lost neurons in the case of AD in part due to impaired proliferative capacity of the neural stem/progenitor cells (NSPCs) and reduced neurogenesis. Therefore, efficient regenerative therapies should also enhance the proliferation and neurogenic capacity of NSPCs. Zebrafish (Danio rerio) is a regenerative organism, and we can learn the basic molecular programs with which we could design therapeutic approaches to tackle AD...
October 25, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29155015/optimized-lentiviral-transduction-of-human-amniotic-mesenchimal-stromal-cells
#6
Federica Pisano, Manuela Mura, Maria Chiara Ciuffreda, Federica Calabrò, Nicola Lanzo, Massimiliano Gnecchi
Mesenchymal stromal cells are excellent candidates for regenerative medicine since they are multipotent, easy to isolate, can be expanded to obtain clinically relevant numbers and they are immunoprivileged. Stable genetic modification with viral vectors can improve mesenchymal stromal cell function and enhance their therapeutic potential. However, standard viral vectors achieve sub-optimal transduction efficiency with a single infection. On the other hand, multiple transduction cycles or antibiotic-based selection methods may alter the stem cell phenotype...
November 14, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29150936/the-roles-of-wnt-%C3%AE-catenin-pathway-in-tissue-development-and-regenerative-medicine
#7
REVIEW
Maryam Majidinia, Javad Aghazadeh, Rana Jahanban-Esfahlani, Bahman Yousefi
Regenerative medicine is a translational field which combines tissue engineering and molecular biology to construct spare organs or help injured or defective tissues to regenerate or restore their normal functions. This is particularly important with specific organs such as heart, central nervous system, retina or limbs which possess very limited regenerative capacity. As such, regenerative medicine has received peculiar attention in the last decade. In this regard, Wnt/β-catenin signaling pathway has been subject to intensive research, since it plays many essential roles in the regulation of the progenitor cell fate, developmental decisions, proliferation during embryonic development, and adult tissue homeostasis...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150935/generation-of-insulin-producing-cells-from-human-adipose-derived-mesenchymal-stem-cells-on-pva-scaffold-by-optimized-differentiation-protocol
#8
Seyed Ehsan Enderami, Masoud Soleimani, Yousef Mortazavi, Samad Nadri, Ali Salimi
The studies have been done on patient-specific human adipose-derived from mesenchymal stem cells (hADSCs) like a series of autologous growth factors and nanofibrous scaffolds (3D culture) will probably have many benefits for regenerative medicine in type 1 diabetes mellitus (TIDM) patients in the future. For this purpose, we established a polyvinyl alcohol (PVA) scaffold and a differentiation protocol by adding platelet-rich plasma (PRP) that induces the hADSCs into insulin-producing cells (IPCs). The Characteristics of the derived IPCs in 3D culture were compared with conventional culture (2D) groups evaluated at the mRNA and protein levels...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29147558/discovery-and-design-of-self-assembling-peptides
#9
REVIEW
Shuguang Zhang
Peptides are ubiquitous in nature and useful in many fields, from agriculture as pesticides, in medicine as antibacterial and antifungal drugs founded in the innate immune systems, to medicinal chemistry as hormones. However, the concept of peptides as materials was not recognized until 1990 when a self-assembling peptide as a repeating segment in a yeast protein was serendipitously discovered. Peptide materials are so called because they have bona fide materials property and are made from simple amino acids with well-ordered nanostructures under physiological conditions...
December 6, 2017: Interface Focus
https://www.readbyqxmd.com/read/29145503/zinc-sulfate-contributes-to-promote-telomere-length-extension-via-increasing-telomerase-gene-expression-telomerase-activity-and-change-in-the-tert-gene-promoter-cpg-island-methylation-status-of-human-adipose-derived-mesenchymal-stem-cells
#10
Raheleh Farahzadi, Ezzatollah Fathi, Seyed Alireza Mesbah-Namin, Nosratollah Zarghami
The use of mesenchymal stem cells (MSCs) for cell therapy and regenerative medicine has received widespread attention over the past few years, but their application can be complicated by factors such as reduction in proliferation potential, the senescent tendency of the MSCs upon expansion and their age-dependent decline in number and function. It was shown that all the mentioned features were accompanied by a reduction in telomerase activity and telomere shortening. Furthermore, the role of epigenetic changes in aging, especially changes in promoter methylation, was reported...
2017: PloS One
https://www.readbyqxmd.com/read/29143182/noncoding-rnas-in-the-regulation-of-pluripotency-and-reprogramming
#11
REVIEW
Vladimir V Sherstyuk, Sergey P Medvedev, Suren M Zakian
Pluripotent stem cells have great potential for developmental biology and regenerative medicine. Embryonic stem cells, which are obtained from blastocysts, and induced pluripotent stem cells, which are generated by the reprogramming of somatic cells, are two main types of pluripotent cells. It is important to understand the regulatory network that controls the pluripotency state and reprogramming process. Various types of noncoding RNAs (ncRNAs) have emerged as substantial components of regulatory networks...
November 15, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/29141233/mirnome-profiling-of-purified-endoderm-and-mesoderm-differentiated-from-hescs-reveals-functions-of-mir-483-3p-and-mir-1263-for-cell-fate-decisions
#12
Daichi Ishikawa, Ulf Diekmann, Jan Fiedler, Annette Just, Thomas Thum, Sigurd Lenzen, Ortwin Naujok
Pluripotent stem cells hold great promise for regenerative medicine since they can differentiate into all somatic cells. MicroRNAs (miRNAs) could be important for the regulation of these cell-fate decisions. Profiling of miRNAs revealed 19 differentially expressed miRNAs in the endoderm and 29 in the mesoderm when analyzing FACS-purified cells derived from human embryonic stem cells. The mesodermal-enriched miR-483-3p was identified as an important regulator for the generation of mesodermal PDGFRA(+) paraxial cells...
November 14, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/29140569/single-cell-functional-analysis-of-stem-cell-derived-cardiomyocytes-on-micropatterned-flexible-substrates
#13
Jan David Kijlstra, Dongjian Hu, Peter van der Meer, Ibrahim J Domian
Human pluripotent stem-cell derived cardiomyocytes (hPSC-CMs) hold great promise for applications in human disease modeling, drug discovery, cardiotoxicity screening, and, ultimately, regenerative medicine. The ability to study multiple parameters of hPSC-CM function, such as contractile and electrical activity, calcium cycling, and force generation, is therefore of paramount importance. hPSC-CMs cultured on stiff substrates like glass or polystyrene do not have the ability to shorten during contraction, making them less suitable for the study of hPSC-CM contractile function...
November 15, 2017: Current Protocols in Stem Cell Biology
https://www.readbyqxmd.com/read/29139103/differentiation-potential-of-human-adipose-stem-cells-bioprinted-with-hyaluronic-acid-gelatin-based-bioink-through-microextrusion-and-visible-light-initiated-crosslinking
#14
Shinji Sakai, Hiromi Ohi, Tomoki Hotta, Hidenori Kamei, Masahito Taya
Bioprinting has a great potential to fabricate three-dimensional (3D) functional tissues and organs. In particular, the technique enables fabrication of 3D constructs containing stem cells while maintaining cell proliferation and differentiation abilities, which is believed to be promising in the fields of tissue engineering and regenerative medicine. We aimed to demonstrate the utility of the bioprinting technique to create hydrogel constructs consisting of hyaluronic acid (HA) and gelatin derivatives through irradiation by visible light to fabricate 3D constructs containing human adipose stem cells (hADSCs)...
November 15, 2017: Biopolymers
https://www.readbyqxmd.com/read/29138638/tissue-source-and-cell-expansion-condition-influence-phenotypic-changes-of-adipose-derived-stem-cells
#15
Lauren H Mangum, Shanmugasundaram Natesan, Randolph Stone, Nicole L Wrice, David A Larson, Kyle F Florell, Barbara A Christy, Maryanne C Herzig, Andrew P Cap, Robert J Christy
Stem cells derived from the subcutaneous adipose tissue of debrided burned skin represent an appealing source of adipose-derived stem cells (ASCs) for regenerative medicine. Traditional tissue culture uses fetal bovine serum (FBS), which complicates utilization of ASCs in human medicine. Human platelet lysate (hPL) is one potential xeno-free, alternative supplement for use in ASC culture. In this study, adipogenic and osteogenic differentiation in media supplemented with 10% FBS or 10% hPL was compared in human ASCs derived from abdominoplasty (HAP) or from adipose associated with debrided burned skin (BH)...
2017: Stem Cells International
https://www.readbyqxmd.com/read/29138636/stem-cell-tracking-technologies-for-neurological-regenerative-medicine-purposes
#16
REVIEW
Yongtao Zheng, Jiongwei Huang, Tongming Zhu, Ronggang Li, Zhifu Wang, Fukai Ma, Jianhong Zhu
The growing field of stem cell therapy is moving toward clinical trials in a variety of applications, particularly for neurological diseases. However, this translation of cell therapies into humans has prompted a need to create innovative and breakthrough methods for stem cell tracing, to explore the migration routes and its reciprocity with microenvironment targets in the body, to monitor and track the outcome after stem cell transplantation therapy, and to track the distribution and cell viability of transplanted cells noninvasively and longitudinally...
2017: Stem Cells International
https://www.readbyqxmd.com/read/29133304/stem-cells-in-vitro-gametogenesis-and-male-fertility
#17
Go Nagamatsu, Katsuhiko Hayashi
Reconstitution in culture of biological processes, such as differentiation and organization, is a key challenge in regenerative medicine, and one in which stem cell technology plays a central role. Pluripotent stem cells (PSCs) and spermatogonial stem cells (SSCs) are useful materials for reconstitution of germ cell development in vitro, as they are capable of differentiating into gametes. Reconstitution of germ cell development, termed in vitro gametogenesis, will provide an experimental platform for a better understanding of germ cell development, as well as an alternative source of gametes for reproduction, with the potential to cure infertility...
November 13, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/29132234/upcycling-umbilical-cords-bridging-regenerative-medicine-with-neonatology
#18
Alvaro Moreira, Yasmeen Alayli, Saloni Balgi, Caitlyn Winter, Samuel Kahlenberg, Shamimunisa Mustafa, Peter Hornsby
Preterm birth is a major health concern that affects 10% of all worldwide deliveries. Many preterm infants are discharged from the hospital with morbidities that lead to an increased risk for neurodevelopmental impairment, recurrent hospitalizations, and life-long conditions. Unfortunately, the treatment of these conditions is palliative rather than curative, which calls for novel and innovative strategies. Progress in regenerative medicine has offered therapeutic options for many of these conditions. Specifically, human umbilical cord mesenchymal stem cells (MSCs) and cord blood (UCB) cells have shown promise in treating adult onset diseases...
November 13, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29129686/naive-like-esrrb-ipscs-with-the-capacity-for-rapid-neural-differentiation
#19
Fumihiko Kisa, Seiji Shiozawa, Keisuke Oda, Sho Yoshimatsu, Mari Nakamura, Ikuko Koya, Kenji Kawai, Sadafumi Suzuki, Hideyuki Okano
Several groups have reported the existence of a form of pluripotency that resembles that of mouse embryonic stem cells (mESCs), i.e., a naive state, in human pluripotent stem cells; however, the characteristics vary between reports. The nuclear receptor ESRRB is expressed in mESCs and plays a significant role in their self-renewal, but its expression has not been observed in most naive-like human induced pluripotent stem cells (hiPSCs). In this study, we modified several methods for converting hiPSCs into a naive state through the transgenic expression of several reprogramming factors...
November 3, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/29128535/branched-peptides-integrate-into-self-assembled-nanostructures-and-enhance-biomechanics-of-peptidic-hydrogels
#20
Raffaele Pugliese, Federico Fontana, Amanda Marchini, Fabrizio Gelain
Self-assembling peptides (SAP) have drawn an increasing interest in the tissue engineering community. They display unquestionable biomimetic properties, tailorability and promising biocompatibility. However their use has been hampered by poor mechanical properties making them fragile soft scaffolds. To increase SAP hydrogel stiffness we introduced a novel strategy based on multiple ramifications of (LDLK)3, a well-known linear SAP, connected with one or multiple "lysine knots". Differently branched SAPs were tested by increasing the number of (LDLK)3-like branches and by adding the neuro-regenerative functional motif BMHP1 as a single branch...
November 8, 2017: Acta Biomaterialia
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