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https://www.readbyqxmd.com/read/28436328/potential-of-stem-cells-as-regenerative-medicine-from-preface-to-advancements
#1
Muhammad Shahid Javaid, Usman Ali Ashfaq, Muhammad Shareef Masoud
Regenerative medicine is an emerging field to find solutions to some of the most challenging medical problems of humans. Regenerative medicine has the potential to revolutionize the whole health care system, in dealing with conditions such as heart disease, emphysema, liver fibrosis, kidney disease, diabetes, and neurological disorders. Among the many challenges to bringing regenerative medicine to the clinic is the selection of the best cell types and reliable ways to expand the number of cells. Stem cells emerged as the best cell type for regeneration of different organs...
2017: Critical Reviews in Eukaryotic Gene Expression
https://www.readbyqxmd.com/read/28433789/macromolecular-crowding-for-tailoring-tissue-derived-fibrillated-matrices
#2
Valentina Magno, Jens Friedrichs, Heather M Weber, Marina C Prewitz, Mikhail V Tsurkan, Carsten Werner
Tissue-derived fibrillated matrices can be instrumental for the in vitro reconstitution of multiphasic extracellular microenvironments. However, despite of several advantages, the obtained scaffolds so far offer a rather narrow range of materials characteristics only. In this work, we demonstrate how macromolecular crowding (MMC) - the supplementation of matrix reconstitution media with synthetic or natural macromolecules in ways to create excluded volume effects (EVE) - can be employed for tailoring important structural and biophysical characteristics of kidney-derived fibrillated matrices...
April 19, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28423523/mir-106b-5p-promotes-renal-cell-carcinoma-aggressiveness-and-stem-cell-like-phenotype-by-activating-wnt-%C3%AE-catenin-signalling
#3
Jun Lu, Jin-Huan Wei, Zi-Hao Feng, Zhen-Hua Chen, Yong-Qian Wang, Yong Huang, Yong Fang, Yan-Ping Liang, Jun-Jie Cen, Yi-Hui Pan, Bing Liao, Wen-Fang Chen, Wei Chen, Jun-Hang Luo
PURPOSE: To examine the role of miR-106b-5p in regulating the cancer stem-cell-like phenotype in clear cell renal cell carcinomas (ccRCC). EXPERIMENTAL DESIGN: Real-time PCR was performed to evaluate miR-106b-5p levels in ccRCC cell lines and patients specimens. A series of in vivo and in vitro assays were performed to confirm the effect of miR-106b-5p on ccRCC stemness phenotype. RESULTS: ccRCC cells and tissues expressed more miR-106b-5p than normal controls...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422374/significant-curative-functions-of-the-mesenchymal-stem-cells-on-methotrexate-induced-kidney-and-liver-injuries-in-rats
#4
Amany M Gad, Wedad A Hassan, Ebtehal Mohammad Fikry
Mesenchymal stem cells (MSCs) curative effects on methotrexate (MTX)-induced kidney and liver injuries remain elusive. Therefore, rats were divided into five groups, rats received MTX orally (14 mg/kg) as a single dose/week for 2 weeks, groups 3 and 4 were injected once with 2 × 10(6) cells bone marrow MSCs and adipose-derived MSCs, respectively. The last group administered dexamethasone (DEX) (0.5 mg/kg, p.o) for 7 days. MTX caused marked increase in malondialdehyde and nitrite/nitrate concentrations...
April 19, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28420460/-bone-marrow-mesenchymal-stem-cells-modulated-the-inflammatory-response-by-regulating-the-expression-of-il-4-and-rage-products-in-the-rats-with-mods
#5
Xia Zhou, Guanghui Xiu, Yichao Zhu, Xiaolei Chen, Wei Xiong, Xinghua Pan, Jie Sun, Bin Ling
OBJECTIVE: To investigate the underlying mechanism of bone marrow mesenchymal stem cells (BMSC) modulating the inflammatory response during the multiple organ dysfunction syndrome (MODS), especially the expression of inflammatory cytokines, which will provide new theoretical and experimental basis of MODS in clinic. METHODS: BMSC of Sprague-Dawley (SD) rat (female, 4 weeks) was extracted and cultivated, and the 4th passage were used in experimental study. According to the random number table, 60 female SD rats were divided into three groups (n = 20 per group): sham group, MODS group, BMSC group...
April 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28420415/distribution-pattern-following-systemic-mesenchymal-stem-cell-injection-depends-on-the-age-of-the-recipient-and-neuronal-health
#6
Claire Fabian, Yahaira Naaldijk, Christiane Leovsky, Adiv A Johnson, Lukas Rudolph, Carsten Jaeger, Katrin Arnold, Alexandra Stolzing
BACKGROUND: Mesenchymal stem cells (MSCs) show therapeutic efficacy in many different age-related degenerative diseases, including Alzheimer's disease. Very little is currently known about whether or not aging impacts the transplantation efficiency of MSCs. METHODS: In this study, we investigated the distribution of intravenously transplanted syngeneic MSCs derived from young and aged mice into young, aged, and transgenic APP/PS1 Alzheimer's disease mice. MSCs from male donors were transplanted into female mice and their distribution pattern was monitored by PCR using Y-chromosome specific probes...
April 18, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28419086/low-birth-weight-is-associated-with-impaired-murine-kidney-development-and-function
#7
Christina Barnett, Oluwadara Nnoli, Wasan Abdulmahdi, Lauren Nesi, Michael Shen, Joseph A Zullo, David L Payne, Tala Azar, Parth Dwivedi, Kunzah Syed, Jonathan Gromis, Mark Lipphardt, Edson Jules, Eric L Maranda, Amy Patel, May M Rabadi, Brian B Ratliff
BACKGROUND: Low birth weight (LBW) neonates have impaired kidney development that leaves them susceptible to kidney disease and hypertension during adulthood. The study here identifies events that blunt nephrogenesis and kidney development in the murine LBW neonate. METHODS: We examined survival, kidney development, GFR, gene expression, and cyto-/chemokines in the LBW offspring of malnourished (caloric and protein restricted) pregnant mice. RESULTS: Malnourished pregnant mothers gave birth to LBW neonates that had 40% reduced body weight and 54% decreased survival...
April 18, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28415933/incidence-risk-factors-and-the-effect-of-polyomavirus-infection-in-hematopoietic-stem-cell-transplant-recipients
#8
Jianhua Hu, Siying Li, Meifang Yang, Lichen Xu, Xuan Zhang, Hong Zhao, Huihui Dong, Yaping Huang, Jun Fan, Lanjuan Li
Objective The effect of polyomavirus infection in HSCT recipients is poorly understood. Methods We evaluated 38 HSCT recipients. Polyomavirus was detected by nested qualitative polymerase chain reaction (PCR) assays of urine. The risk factors for BK virus and JC virus were analysed. The kidney and liver functions of infected and uninfected patients were compared. Results BK virus, JC virus, and simian virus 40 were detected in 21%, 42%, and 0% of HSCT recipients respectively. HCMV infection was found to be an independent risk factor for JC virus infection (odds ratio (OR): 8...
April 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28413492/immunogenicity-of-insulin-producing-cells-derived-from-human-umbilical-cord-mesenchymal-stem-cells
#9
Xiao-Fei Yang, Tao Chen, Li-Wei Ren, Lu Yang, Hui Qi, Fu-Rong Li
Mesenchymal stem cells (MSCs) have been considered as hypo-immunogenic and immunosuppressive. However, a thorough understanding of the immunological properties after MSC differentiation in vitro and in vivo has not been reached. We asked whether it would be immunogenic after differentiation or influenced by the immune microenvironment after transplantation. In different disease models, the immunological changes of MSCs after differentiation greatly varied, with contradicting results. In order to clarify this, we used a modified four-step induction method to induce human umbilical cord MSCs (hUCMSCs) to differentiate into insulin-producing cells (IPCs), and investigate the immunological changes after differentiation and immune reactions after transplantation into diabetic mice...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28411358/early-diagnostic-markers-for-detection-of-acute-kidney-injury-in-allogeneic-hematopoietic-stem-cell-transplant-recipients
#10
Serpil Muge Deger, Yasemin Erten, Elif Suyani, Sahika Zeynep Aki, Gulay Ulusal Okyay, Ozge T Pasaoglu, Hatice Pasaoglu, Turgay Arinsoy, Gulsan Turkoz Sucak
OBJECTIVES: Acute kidney injury is a relatively frequent complication of allogenic hematopoietic stem cell transplant, resulting in increased risk of morbidity and mortality. Early diagnosis and management of acute kidney injury is of great importance for prevention of poor outcomes in these transplant recipients. MATERIALS AND METHODS: Fifty consecutive patients, hospitalized for allogenic hematopoietic stem cell transplant at the Bone Marrow Transplantation Unit of Gazi University Faculty of Medicine, were included in this prospective study...
April 14, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28409346/development-and-diseases-of-the-collecting-duct-system
#11
Lihe Chen, Paul J Higgins, Wenzheng Zhang
The collecting duct of the mammalian kidney is important for the regulation of extracellular volume, osmolarity, and pH. There are two major structurally and functionally distinct cell types: principal cells and intercalated cells. The former regulates Na(+) and water homeostasis, while the latter participates in acid-base homeostasis. In vivo lineage tracing using Cre recombinase or its derivatives such as CreGFP and CreER(T2) is a powerful new technique to identify stem/progenitor cells in their native environment and to decipher the origins of the tissue that they give rise to...
2017: Results and Problems in Cell Differentiation
https://www.readbyqxmd.com/read/28409093/first-case-of-invasive-magnusiomyces-capitatus-infection-in-slovakia
#12
Dominika Tanuskova, Julia Horakova, Peter Svec, Ivana Bodova, Martina Lengerova, Matej Bezdicek, Miroslava Poczova, Jozef Koppl, Alexandra Kolenova
Magnusiomyces capitatus (previously known as Geotrichum capitatum or Blastoschizomyces capitatus or Trichosporon capitatum) is a rare cause of fungal infection in immunocompromised patients. Most of these cases (87%) have been reported from the Mediterranean region, as it is extremely rare to recognize it in other regions. Here we report a first case of disseminated M. capitatus infection in Slovakia. The patient - 19 year old woman with myelodysplastic syndrome was diagnosed with M. capitatus fungemia after allogeneic stem cell transplantation...
June 2017: Medical Mycology Case Reports
https://www.readbyqxmd.com/read/28397982/generation-of-chimeric-minipigs-by-aggregating-4-to-8-cell-stage-blastomeres-from-somatic-cell-nuclear-transfer-with-the-tracing-of-enhanced-green-fluorescent-protein
#13
Huili Ji, Chuan Long, Chong Feng, Ningning Shi, Yingdi Jiang, Guomin Zeng, Xirui Li, Jingjing Wu, Lin Lu, Shengsheng Lu, Dengke Pan
BACKGROUND: Blastocyst complementation is an important technique for generating chimeric organs in organ-deficient pigs, which holds great promise for solving the problem of a shortage of organs for human transplantation procedures. Porcine chimeras have been generated using embryonic germ cells, embryonic stem cells, and induced pluripotent stem cells; however, there are no authentic pluripotent stem cells for pigs. In previous studies, blastomeres from 4- to 8-cell-stage parthenogenetic embryos were able to generate chimeric fetuses efficiently, but the resulting fetuses did not produce live-born young...
April 11, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28396799/erratum-to-umbilical-cord-mesenchymal-stem-cells-derived-extracellular-vesicles-can-safely-ameliorate-the-progression-of-chronic-kidney-diseases
#14
Wael Nassar, Mervat El-Ansary, Dina Sabry, Mostafa A Mostafa, Tarek Fayad, Esam Kotb, Mahmoud Temraz, Abdel-Naser Saad, Wael Essa, Heba Adel
[This corrects the article DOI: 10.1186/s40824-016-0068-0.].
2017: Biomaterials Research
https://www.readbyqxmd.com/read/28396578/comparative-characterization-of-decellularized-renal-scaffolds-for-tissue-engineering
#15
Iris Fischer, Michael Westphal, Bella Rossbach, Nicole Bethke, Krithika Hariharan, Imran Ullah, Petra Reinke, Andreas Kurtz, Harald Stachelscheid
Native extracellular matrix (ECM) provides scaffolds for tissue engineering with natural architecture and biochemical composition. Maintaining the native ECM in decellularized tissues provides cues for cells, which promote their tissue specific arrangement and function. Several approaches have been used to decellularize ECM from the kidney in order to reestablish renal tissue but their comparability is hampered because methods for decellularization and assessment of ECM vary widely. Therefore, we applied a standardized immersion protocol to decellularize porcine kidney tissue with three detergents Triton X-100, sodium dodecyl sulfate (SDS) and sodium deoxycholate (SDC) at variable temperatures...
April 11, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28396164/dose-escalation-of-total-marrow-irradiation-in-high-risk-patients-undergoing-allogeneic-hematopoietic-stem-cell-transplantation
#16
Susanta Hui, Claudio Brunstein, Yutaka Takahashi, Todd DeFor, Shernan G Holtan, Veronika Bachanova, Christopher Wilke, Darren Zuro, Celalettin Ustun, Daniel Weisdorf, Kathryn Dusenbery, Michael R Verneris
Patients with refractory leukemia or minimal residual disease (MRD) at transplant have increased risk of relapse. Augmentation of irradiation, especially to sites of disease (i.e., bone marrow) is one potential strategy to overcome this risk. We studied the feasibility of radiation dose escalation in high risk patients using total marrow irradiation (TMI) in a phase I dose-escalation trial. Four pediatric and 8 adult patients received conditioning with cyclophosphamide and fludarabine in conjunction with image-guided radiation to the bone marrow at 15 Gy and 18 Gy (in 3 Gy/fractions), while maintaining the total body irradiation (TBI) dose to the vital organs (lungs, hearts, eyes, liver, kidneys) at <13...
April 7, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28396159/a-time-to-event-model-for-acute-kidney-injury-after-reduced-intensity-conditioning-stem-cell-transplantation-using-a-tacrolimus-and-sirolimus-based-graft-versus-host-disease-prophylaxis
#17
Jose Luis Piñana, Alejandro Perez-Pitarch, Irene Garcia-Cadenas, Pere Barba, Juan Carlos Hernandez-Boluda, Albert Esquirol, María Laura Fox, María José Terol, Josep M Queraltó, Jaume Vima, David Valcarcel, Rafael Ferriols-Lisart, Jorge Sierra, Carlos Solano, Rodrigo Martino
There is a paucity of data evaluating acute kidney injury (AKI) incidence and its relationship with the tacrolimus-sirolimus (Tac-Sir) concentrations in the setting of reduced intensity conditioning after allogeneic stem cell transplantation (RIC-allo-HSCT). This multicenter retrospective study evaluated risk factors of AKI defined by two classification systems (KDIGO score and "Grade 0-3 staging") in 186 consecutive RIC-allo-HSCT recipients with Tac-Sir as graft-versus-host disease prophylaxis. Conditioning regimens consisted of fludarabine and busulfan (n=53), or melphalan (n=83), or a combination of thiotepa, fludarabine and busulfan (n=50)...
April 7, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28391364/mesenchymal-stem-cells-cannot-affect-mrna-expression-of-toll-like-receptors-in-different-tissues-during-sepsis
#18
Leonardo Pedrazza, Talita Carneiro Brandão Pereira, Ana Lucia Abujamra, Fernanda Bordignon Nunes, Maurício Reis Bogo, Jarbas Rodrigues de Oliveira
OBJECTIVE AND DESIGN: Experimental animal models and human clinical studies support a crucial role for TLRs in infectious diseases. The aim of this study was to test the ability of MSCs, which have immunomodulatory effects, of altering the mRNA expression of toll-like receptors during a experimental model of sepsis in different tissues. MATERIALS AND METHODS: Three experimental groups (male C57BL/6 mice) were formed for the test: control group, untreated septic group and septic group treated with MSCs (1 × 10(6) cells/animal)...
April 8, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/28391346/what-can-target-kidney-fibrosis
#19
Irina A Leaf, Jeremy S Duffield
Fibrosis, a characteristic of all chronic kidney diseases, is now recognized to be an independent predictor of disease progression. Deposition of pathological matrix in the walls of glomerular capillaries, the interstitial space and around arterioles both predicts and contributes to functional demise of the nephron and its surrounding vasculature. Recent identification of the major cell populations of fibroblast precursors in the kidney interstitium as pericytes and tissue-resident mesenchymal stem cells, and in the glomerulus as podocytes, parietal epithelial and mesangial cells, has enabled the study of the fibrogenic process in much greater depth directly in the fibroblast precursors...
January 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28390726/effects-of-preweaning-nutrient-intake-in-the-developing-mammary-parenchymal-tissue
#20
F Soberon, M E Van Amburgh
Historically, mammary gland growth has been considered isometric the first 2 mo of life and then allometric until peripuberty. However, recent work indicated that the mammary gland might be responsive to nutrient intake preweaning. The objectives of this study were to describe the effects of nutrient intake preweaning on mammary gland development and to investigate cell specific proliferation during this phase of development. Twelve dairy heifer calves were fed either a fixed amount of milk replacer (MR; control, n = 6) or an amount of MR adjusted for BW (enhanced, n = 6)...
April 5, 2017: Journal of Dairy Science
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