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https://www.readbyqxmd.com/read/29053925/mesenchymal-stem-cell-secretome-improves-tendon-cell-viability-in-vitro-and-tendon-bone-healing-in-vivo-when-a-tissue-engineering-strategy-is-used-in-a-rat-model-of-chronic-massive-rotator-cuff-tear
#1
Nuno Sevivas, Fábio Gabriel Teixeira, Raquel Portugal, Bruno Direito-Santos, João Espregueira-Mendes, Filipe J Oliveira, Rui F Silva, Nuno Sousa, Wan Ting Sow, Nguyen Luong, Kee Woei Ng, António J Salgado
BACKGROUND: Massive rotator cuff tears (MRCTs) represent a major clinical concern, especially when degeneration and chronicity are involved, which highly compromise healing capacity. PURPOSE: To study the effect of the secretome of mesenchymal stem cells (MSCs) on tendon cells (TCs) followed by the combination of these activated TCs with an electrospun keratin-based scaffold to develop a tissue engineering strategy to improve tendon-bone interface (TBi) healing in a chronic MRCT rat model...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29052757/variation-in-occupational-exposure-associated-with-musculoskeletal-complaints-a-cross-sectional-study-among-professional-bassists
#2
Kees H Woldendorp, Anne M Boonstra, J Hans Arendzen, Michiel F Reneman
BACKGROUND: Variation in occupational exposure is assumed to have a protective effect against the development of musculoskeletal complaints (MSC), but this common assumption is not strongly supported by the literature. Among musicians, who have a high prevalence of MSC, many play more than one type of instrument (multi-instrumentalism) for many hours a day. Since multi-instrumentalism implies greater variation in ergonomic load of specific musculoskeletal areas than mono-instrumentalism, musicians are a suitable study population to test whether the above assumption is true...
October 20, 2017: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/29052365/inferior-in-vivo-osteogenesis-and-superior-angiogeneis-of-human-adipose-tissue-compared-with-bone-marrow-derived-stromal-stem-cells-cultured-in-xeno-free-conditions
#3
Meadhbh A Brennan, Audrey Renaud, Fabien Guilloton, Miryam Mebarki, Valerie Trichet, Luc Sensebé, Frederic Deschaseaux, Nathalie Chevallier, Pierre Layrolle
The possibility of using adipose tissue-derived stromal cells (ATSC) as alternatives to bone marrow-derived stromal cells (BMSC) for bone repair has garnered interest due to the accessibility, high cell yield, and rapid in vitro expansion of ATSC. For clinical relevance, their bone forming potential in comparison to BMSC must be proven. Distinct differences between ATSC and BMSC have been observed in vitro and comparison of osteogenic potential in vivo is not clear to date. The aim of the current study was to compare the osteogenesis of human xenofree-expanded ATSC and BMSC in vitro and in an ectopic nude mouse model of bone formation...
October 19, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29051567/mesenchymal-stem-stromal-cells-enhance-engraftment-vasculogenic-and-pro-angiogenic-activities-of-endothelial-colony-forming-cells-in-immunocompetent-hosts
#4
Abbas Shafiee, Jatin Patel, James S Lee, Dietmar W Hutmacher, Nicholas M Fisk, Kiarash Khosrotehrani
The clinical use of endothelial colony forming cells (ECFC) is hampered by their restricted engraftment. We aimed to assess engraftment, vasculogenic and pro-angiogenic activities of ECFC in immunocompetent (C57BL/6: WT) or immunodeficient (rag1 (-/-) C57BL/6: Rag1) mice. In addition, the impact of host immune system was investigated where ECFC were co-implanted with mesenchymal stem/stromal cells (MSC) from adult bone marrow (AdBM-MSC), fetal bone marrow (fBM-MSC), fetal placental (fPL-MSC), or maternal placental (MPL-MSC)...
October 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29050516/human-bone-marrow-mesenchymal-stromal-cell-derived-osteoblasts-promote-the-expansion-of-hematopoietic-progenitors-through-beta-catenin-and-notch-signaling-pathways
#5
Matthew Michalicka, Gavin Boisjoli, Suria Jahan, Owen Hovey, Emily Doxtator, Ahmad Abu-Khader, Roya Pasha, Nicolas Pineault
Coculture of hematopoietic stem cells (HSC) with primary stromal cells from HSC niches supports the maintenance and expansion of HSC and progenitors ex vivo. However, a major drawback is the availability of primary human samples for research and clinical applications. We investigated the use of in vitro derived osteoblasts as a new source of feeder cells and characterized the molecular pathways that mediate their growth promoting activities. First, we compared the growth and differentiation modulating activities of mesenchymal stromal cells (MSC)-derived osteoblasts (M-OST) to that of their undifferentiated precursor on umbilical cord blood (UCB) progenitors...
October 19, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/29050313/adipose-derived-mesenchymal-stem-cells-employed-exosomes-to-attenuate-aki-ckd-transition-through-tubular-epithelial-cell-dependent-sox9-activation
#6
Fengming Zhu, Octavia L S Chong Lee Shin, Guangchang Pei, Zhizhi Hu, Juan Yang, Han Zhu, Meng Wang, Jingyi Mou, Jie Sun, Yuxi Wang, Qian Yang, Zhi Zhao, Huzi Xu, Hui Gao, Weiqi Yao, Xiao Luo, Wenhui Liao, Gang Xu, Rui Zeng, Ying Yao
Acute kidney injury (AKI) predisposes patients to an increased risk into progressive chronic kidney disease (CKD), however effective treatments are still elusive. This study aimed to investigate the therapeutic efficacy of human adipose-derived MSCs (hAD-MSCs) in the prevention of AKI-CKD transition, and illuminate the role of Sox9, a vital transcription factor in the development of kidney, in this process. C57BL/6 mice were subjected to unilateral renal ischemia/reperfusion (I/R) with or without hAD-MSC treatment...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29049924/equine-mesenchymal-stem-cells-derived-from-endometrial-or-adipose-tissue-share-significant-biological-properties-but-have-distinctive-pattern-of-surface-markers-and-migration
#7
J Cabezas, D Rojas, F Navarrete, R Ortiz, G Rivera, F Saravia, L Rodriguez-Alvarez, F O Castro
Adult stromal mesenchymal stem cells (MSCs) have been postulated as responsible for cell renewal in highly and continuously regenerative tissues such as the endometrium. MSCs have been identified in the endometrium of many species including humans, rodents, pets and some farm animals, but not in horses. The objective of this work was to isolate such cells from the endometrium of mares and to compare their main biological attributes with horse adipose-derived MSCs. Here we successfully isolated and characterized endometrial MSCs (eMSCs) from mares...
October 6, 2017: Theriogenology
https://www.readbyqxmd.com/read/29048998/transmission-of-pseudoloma-neurophilia-in-laboratory-zebrafish-danio-rerio-when-using-mass-spawning-chambers-and-recommendations-for-chamber-disinfection
#8
Samantha M Peneyra, Jose Cardona-Costa, Julie White, Christopher M Whipps, Elyn R Riedel, Neil S Lipman, Christine Lieggi
Pseudoloma neurophilia, a microsporidium that primarily infects neural tissues, is a common pathogen in laboratory zebrafish. The risk of parasite transmission with different spawning apparatuses and the effectiveness of disinfection are unknown. In this study, we spawned uninfected zebrafish with P. neurophilia-infected zebrafish in either 50 L mass spawning chambers (MSCs) or 1 L standard breeding tanks (BTs). Fish were spawned once or thrice, with and without chamber disinfection between uses, to evaluate risk of vertical and horizontal transmission...
October 19, 2017: Zebrafish
https://www.readbyqxmd.com/read/29048746/long-term-occurrence-of-secondary-compartment-pelvic-organ-prolapse-after-open-mesh-sacrocolpopexy-for-symptomatic-prolapse
#9
Connie Wang, Alana L Christie, Philippe E Zimmern
AIMS: To report on the long-term occurrence of secondary compartment pelvic organ prolapse (POP) after open mesh sacrocolpopexy (MSC). METHODS: A prospectively maintained, IRB-approved database of non-neurogenic women with symptomatic triple compartment POP who underwent open MSC between 1999 and 2011 and had a 1-year minimum follow-up was reviewed. Length of follow-up was categorized as: intermediate (1-3 yr), late (3-5 yr), and very late (>5 yr). Demographic data, history of POP repairs, exam with Baden-Walker grading, validated questionnaires (Urogenital Distress Inventory short form [UDI-6], QoL), and outcomes at each follow-up visit were recorded...
October 19, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/29047310/reserve-or-resident-progenitors-in-cartilage-comparative-analysis-of-chondrocytes-versus-chondroprogenitors-and-their-role-in-cartilage-repair
#10
Elizabeth Vinod, P R J V C Boopalan, Solomon Sathishkumar
Introduction Articular cartilage is made up of hyaline tissue embodying chondrocytes, which arise from mesenchymal stromal cells (MSCs) and specialized extracellular matrix. Despite possessing resident progenitors in and around the joint primed for chondrogenesis, cartilage has limited intrinsic capacity of repair and cell turnover. Advances in isolation, culture, and characterization of these progenitors have raised the possibility for their use in cell-based cartilage repair. Chondroprogenitors (CPCs) have been classified as MSCs and have been postulated to play a vital role in injury response and are identified by their colony forming ability, proliferative potential, telomere dynamics, multipotency, and expression of stem cell markers...
October 1, 2017: Cartilage
https://www.readbyqxmd.com/read/29046476/tracking-mesenchymal-stem-cell-contributions-to-regeneration-in-an-immunocompetent-cartilage-regeneration-model
#11
Daniela Zwolanek, María Satué, Verena Proell, José R Godoy, Kathrin I Odörfer, Magdalena Flicker, Sigrid C Hoffmann, Thomas Rülicke, Reinhold G Erben
It is currently controversially discussed whether mesenchymal stem cells (MSC) facilitate cartilage regeneration in vivo by a progenitor- or a nonprogenitor-mediated mechanism. Here, we describe a potentially novel unbiased in vivo cell tracking system based on transgenic donor and corresponding immunocompetent marker-tolerant recipient mouse and rat lines in inbred genetic backgrounds. Tolerance of recipients was achieved by transgenic expression of an immunologically neutral but physicochemically distinguishable variant of the marker human placental alkaline phosphatase (ALPP)...
October 19, 2017: JCI Insight
https://www.readbyqxmd.com/read/29045045/mesenchymal-stromal-cell-therapy-in-bronchopulmonary-dysplasia-systematic-review-and-meta-analysis-of-preclinical-studies
#12
Sajit Augustine, Marc T Avey, Brittany Harrison, Tiffany Locke, Mona Ghannad, David Moher, Bernard Thébaud
Extreme prematurity is the leading cause of death among children under 5 years of age. Currently, there is no treatment for bronchopulmonary dysplasia (BPD), the most common complication of extreme prematurity. Experimental studies in animal models of BPD suggest that mesenchymal stromal cells (MSCs) are lung protective. To date, no systematic review and meta-analysis has evaluated the preclinical evidence of this promising therapy. Our protocol was registered with Collaborative Approach to Meta-Analysis and Review of Animal Data from Experimental Studies prior to searching MEDLINE (1946 to June 1, 2015), Embase (1947 to 2015 Week 22), Pubmed, Web of Science, and conference proceedings (1990 to present) for controlled comparative studies of neonatal animal models that received MSCs or cell free MSC-derived conditioned media (MSC-CM)...
October 17, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29044850/mesenchymal-stem-cells-therapy-a-promising-cell-based-therapy-for-treatment-of-myocardial-infraction
#13
REVIEW
Ayman El Sayed Shafei, Mahmoud Ahmed Ali, Hazem G Ghanem, Ahmed I Shehata, Ahmed A Abdelgawad, Hossam R Handal, Kareem A Talaat, Ahmed E Ashaal, Amal S El-Shal
AIM: For decades, mesenchymal stem (MSCs) cells had been used for cardiovascular diseases as regenerative therapy. This review is an attempt to summarize the types of MSCs involved in MI therapy, its possible mechanisms effects especially paracrine one in MI focusing on the studies (human and animal) conducted in the last 10 years. DISCUSSION: Recently, reports showed that MSC therapy could have infarct-limiting effects after myocardial infarction (MI) in both experimental and clinical trials...
October 16, 2017: Journal of Gene Medicine
https://www.readbyqxmd.com/read/29044355/the-effects-of-low-level-laser-irradiation-on-proliferation-of-human-dental-pulp-a-narrative-review
#14
S Staffoli, U Romeo, R N S Amorim, G Migliau, G Palaia, L Resende, A Polimeni
Mesenchymal stem cells (MSCs) have the capability for self-renewal, proliferation, and differentiation in various types of specialized cells, so they are very important in cellular therapies. MSC from dental pulp are simply obtainable and have high proliferative capability. Among the therapies that can stimulate the proliferation of certain cell types, low-level laser therapy (LLLT) stands out. The target of this study is to perform a literature review to investigate these effects of low-level laser irradiation on proliferation of human dental pulp...
September 2017: La Clinica Terapeutica
https://www.readbyqxmd.com/read/29043772/therapeutic-angiogenesis-via-solar-cell-facilitated-electrical-stimulation
#15
Gun-Jae Jeong, Jin Young Oh, Yeon-Ju Kim, Suk Ho Bhang, Hyeon-Ki Jang, Jin Han, Jeong-Kee Yoon, Sang-Mo Kwon, Tae Il Lee, Byung-Soo Kim
Cell therapy has been suggested as a treatment modality for ischemic diseases, but the poor survival and engraftment of implanted cells limit its therapeutic efficacy. To overcome such limitation, we used electrical stimulation (ES) derived from a wearable solar cell for inducing angiogenesis in ischemic tissue. ES enhanced the secretion of angiogenic growth factors and the migration of mesenchymal stem cells (MSCs), myoblasts, endothelial progenitor cells, and endothelial cells in vitro. In a mouse ischemic hindlimb model, ES generated by a solar cell and applied to the ischemic region promoted migration of MSCs toward the ischemic site and upregulated expression of angiogenic paracrine factors (vascular endothelial, basic fibroblast, and hepatocyte growth factors; and stromal-cell-derived factor-1α)...
October 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29042945/human-umbilical-cord-mesenchymal-stem-cells-increase-interleukin-9-production-of-cd4-t-cells
#16
Zhou Xin Yang, Ying Chi, Yue Ru Ji, You Wei Wang, Jing Zhang, Wei Feng Luo, Li Na Li, Cai Dong Hu, Guang Sheng Zhuo, Li Fang Wang, Zhi-Bo Han, Zhong Chao Han
Mesenchymal stem cells (MSC) are able to differentiate into cells of multiple lineage, and additionally act to modulate the immune response. Interleukin (IL)-9 is primarily produced by cluster of differentiation (CD)4(+) T cells to regulate the immune response. The present study aimed to investigate the effect of human umbilical cord derived-MSC (UC-MSC) on IL-9 production of human CD4(+) T cells. It was demonstrated that the addition of UC-MSC to the culture of CD4(+) T cells significantly enhanced IL-9 production by CD4(+) T cells...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29042571/a-novel-technique-for-accelerated-culture-of-murine-mesenchymal-stem-cells-that-allows-for-sustained-multipotency
#17
Courtney M Caroti, Hyunhee Ahn, Hector F Salazar, Giji Joseph, Sitara B Sankar, Nick J Willett, Levi B Wood, W Robert Taylor, Alicia N Lyle
Bone marrow derived mesenchymal stem cells (MSCs) are regularly utilized for translational therapeutic strategies including cell therapy, tissue engineering, and regenerative medicine and are frequently used in preclinical mouse models for both mechanistic studies and screening of new cell based therapies. Current methods to culture murine MSCs (mMSCs) select for rapidly dividing colonies and require long-term expansion. These methods thus require months of culture to generate sufficient cell numbers for feasibility studies in a lab setting and the cell populations often have reduced proliferation and differentiation potential, or have become immortalized cells...
October 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29042548/human-mesenchymal-stromal-cells-transplanted-into-mice-stimulate-renal-tubular-cells-and-enhance-mitochondrial-function
#18
Luca Perico, Marina Morigi, Cinzia Rota, Matteo Breno, Caterina Mele, Marina Noris, Martino Introna, Chiara Capelli, Lorena Longaretti, Daniela Rottoli, Sara Conti, Daniela Corna, Giuseppe Remuzzi, Ariela Benigni
Mesenchymal stromal cells (MSCs) are renoprotective and drive regeneration following injury, although cellular targets of such an effect are still ill-defined. Here, we show that human umbilical cord (UC)-MSCs transplanted into mice stimulate tubular cells to regain mitochondrial mass and function, associated with enhanced microtubule-rich projections that appear to mediate mitochondrial trafficking to create a reparative dialogue among adjacent tubular cells. Treatment with UC-MSCs in mice with cisplatin-induced acute kidney injury (AKI) regulates mitochondrial biogenesis in proximal tubuli by enhancing PGC1α expression, NAD(+) biosynthesis and Sirtuin 3 (SIRT3) activity, thus fostering antioxidant defenses and ATP production...
October 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/29040136/using-clinical-outcomes-to-improve-preclinical-testing-commentary-on-an-article-by-peter-a-devane-mbchb-msc-fracs-et-al-highly-cross-linked-polyethylene-reduces-wear-and-revision-rates-in-total-hip-arthroplasty-a-10-year-double-blinded-randomized-controlled
#19
https://www.readbyqxmd.com/read/29039810/effects-of-moisture-and-particle-size-on-quantitative-determination-of-total-organic-carbon-toc-in-soils-using-near-infrared-spectroscopy
#20
Elena Tamburini, Fabio Vincenzi, Stefania Costa, Paolo Mantovi, Paola Pedrini, Giuseppe Castaldelli
Near-Infrared Spectroscopy is a cost-effective and environmentally friendly technique that could represent an alternative to conventional soil analysis methods, including total organic carbon (TOC). Soil fertility and quality are usually measured by traditional methods that involve the use of hazardous and strong chemicals. The effects of physical soil characteristics, such as moisture content and particle size, on spectral signals could be of great interest in order to understand and optimize prediction capability and set up a robust and reliable calibration model, with the future perspective of being applied in the field...
October 17, 2017: Sensors
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