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Adipose-derived mesenchymal cells

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https://www.readbyqxmd.com/read/27913779/comparison-of-proliferative-and-immunomodulatory-potential-of-adipose-derived-mesenchymal-stem-cells-from-young-and-geriatric-cats
#1
Lara B Zajic, Tracy L Webb, Polly Webb, Jonathan W Coy, Steve W Dow, Jessica M Quimby
OBJECTIVES: The objective of this study was to compare the ability of adipose-derived mesenchymal stem cells (aMSC) generated from young vs geriatric cats to proliferate in culture, suppress lymphocyte proliferation and undergo senescence. METHODS: Adipose tissues from five young (<5 years) and six geriatric (>10 years) cats were harvested and cryopreserved for subsequent aMSC isolation and culture. aMSC proliferation in culture was compared via determination of time until passage two and by 3-(4,5-demethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay...
December 2, 2016: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/27909015/diabetic-human-adipose-tissue-derived-mesenchymal-stem-cells-fail-to-differentiate-in-functional-adipocytes
#2
Ignazio Barbagallo, Giovanni Li Volti, Fabio Galvano, Guido Tettamanti, Francesca R Pluchinotta, Sonia Bergante, Luca Vanella
Adipose tissue dysfunction represents a hallmark of diabetic patients and is a consequence of the altered homeostasis of this tissue. Mesenchymal stem cells (MSCs) and their differentiation into adipocytes contribute significantly in maintaining the mass and function of adult adipose tissue. The aim of this study was to evaluate the differentiation of MSCs from patients suffering type 2 diabetes (dASC) and how such process results in hyperplasia or rather a stop of adipocyte turnover resulting in hypertrophy of mature adipocytes...
November 30, 2016: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27907211/characterization-and-immunomodulatory-effects-of-canine-adipose-tissue-and-bone-marrow-derived-mesenchymal-stromal-cells
#3
Keith A Russell, Natalie H C Chow, David Dukoff, Thomas W G Gibson, Jonathan LaMarre, Dean H Betts, Thomas G Koch
BACKGROUND: Mesenchymal stromal cells (MSC) hold promise for both cell replacement and immune modulation strategies owing to their progenitor and non-progenitor functions, respectively. Characterization of MSC from different sources is an important and necessary step before clinical use of these cells is widely adopted. Little is known about the biology and function of canine MSC compared to their mouse or human counterparts. This knowledge-gap impedes development of canine evidence-based MSC technologies...
2016: PloS One
https://www.readbyqxmd.com/read/27906070/subretinal-adipose-tissue-derived-mesenchymal-stem-cell-implantation-in-advanced-stage-retinitis-pigmentosa-a-phase-i-clinical-safety-study
#4
Ayse Oner, Z Burcin Gonen, Neslihan Sinim, Mustafa Cetin, Yusuf Ozkul
BACKGROUND: This prospective clinical case series aimed to investigate the safety of subretinal adipose tissue-derived mesenchymal stem cell (ADMSC) implantation in advanced stage retinitis pigmentosa (RP). METHODS: This study included 11 patients with end-stage RP who received subretinal implantation of ADMSCs. All patients had a total visual field defect and five of them only had light perception. The best corrected visual acuity (BCVA) in the study was 20/2000...
December 1, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27900891/chondrogenesis-of-human-adipose-derived-stem-cells-for-future-microtia-repair-using-co-culture-technique
#5
Bee See Goh, Siti Nurhadis Che Omar, Muhammad Azhan Ubaidah, Lokman Saim, Shamsul Sulaiman, Kien Hui Chua
CONCLUSION: In conclusion, these result showed HADSCs could differentiate into chondrocytes-like cells, dependent on signaling induced by TGF-β3 and chondrocytes. This is a promising result and showed that HADSCs is a potential source for future microtia repair. The technique of co-culture is a positive way forward to assist the microtia tissue. OBJECTIVE: Reconstructive surgery for the repair of microtia still remains the greatest challenge among the surgeons...
November 30, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27895151/high-fat-diet-promotes-mammary-gland-myofibroblast-differentiation-through-mir-140-downregulation
#6
Benjamin Wolfson, Yongshu Zhang, Ramkishore Gernapudi, Nadire Duru, Yuan Yao, Pang-Kuo Lo, Qun Zhou
Human breast adipose tissue is a heterogonous cell population consisting of mature white adipocytes, multipotent mesenchymal stem cells, committed progenitor cells, fibroblasts, endothelial cells, and immune cells. Dependent on external stimulation, adipose derived stem cells differentiate along diverse lineages into adipocytes, chondrocytes, osteoblasts, fibroblasts, and myofibroblasts. It is currently not fully understood how high-fat diet reprograms adipose-derived stem cells into myofibroblasts. In our study, we use regular-diet and high-fat diet induced obesity mouse models to investigate the role of dietary fat on myofibroblast differentiation in the mammary stromal microenvironment...
November 28, 2016: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/27893612/the-influence-of-timing-and-frequency-of-adipose-derived-mesenchymal-stem-cell-therapy-on-immunomodulation-outcomes-after-vascularized-composite-allotransplantation
#7
Jan A Plock, Jonas T Schnider, Riccardo Schweizer, Wensheng Zhang, Wakako Tsuji, Matthias Waldner, Mario G Solari, Kacey G Marra, J Peter Rubin, Vijay S Gorantla
BACKGROUND: Cellular therapies for immunomodulation in vascularized composite allotransplantation (VCA) have gained importance due to their potential minimization of immunosuppression. Adipose-derived mesenchymal stem cells (AD-MSCs) especially have shown encouraging potential. We investigated the influence of timing and frequency of AD-MSC-treatment on immunologic and graft survival as well as graft vasculopathy (GV) outcomes after VCA. METHODS: Lewis (LEW) rats received full-mismatched Brown Norway (BN) rat hindlimb transplants...
November 23, 2016: Transplantation
https://www.readbyqxmd.com/read/27889810/rhodamine-bound-maghemite-as-a-long-term-dual-imaging-nanoprobe-of-adipose-tissue-derived-mesenchymal-stromal-cells
#8
Vratislav Cmiel, Josef Skopalik, Katerina Polakova, Jan Solar, Marketa Havrdova, David Milde, Ivan Justan, Massimiliano Magro, Zenon Starcuk, Ivo Provaznik
In the last few years, magnetically labeled cells have been intensively explored, and non-invasive cell tracking and magnetic manipulation methods have been tested in preclinical studies focused on cell transplantation. For clinical applications, it is desirable to know the intracellular pathway of nanoparticles, which can predict their biocompatibility with cells and the long-term imaging properties of labeled cells. Here, we quantified labeling efficiency, localization, and fluorescence properties of Rhodamine derivatized superparamagnetic maghemite nanoparticles (SAMN-R) in mesenchymal stromal cells (MSC)...
November 26, 2016: European Biophysics Journal: EBJ
https://www.readbyqxmd.com/read/27888809/human-adipose-tissue-derived-mesenchymal-stem-cells-alleviate-atopic-dermatitis-via-regulation-of-b-lymphocyte-maturation
#9
Tae-Hoon Shin, Byung-Chul Lee, Soon Won Choi, Ji-Hee Shin, Insung Kang, Jin Young Lee, Jae-Jun Kim, Hong-Ki Lee, Jae-Eon Jung, Yong-Woon Choi, Sung-Hoon Lee, Jin-Sang Yoon, Jin-Sub Choi, Chi-Seung Lee, Yoojin Seo, Hyung-Sik Kim, Kyung-Sun Kang
Mesenchymal stem cell (MSC) has been applied for the therapy of allergic disorders due to its beneficial immunomodulatory abilities. However, the underlying mechanisms for therapeutic efficacy are reported to be diverse according to the source of cell isolation or the route of administration. We sought to investigate the safety and the efficacy of human adipose tissue-derived MSCs (hAT-MSCs) in mouse atopic dermatitis (AD) model and to determine the distribution of cells after intravenous administration. Murine AD model was established by multiple treatment of Dermatophagoides farinae...
November 19, 2016: Oncotarget
https://www.readbyqxmd.com/read/27888602/a-glycovariant-of-human-cd44-is-characteristically-expressed-on-human-mesenchymal-stem-cells
#10
Gisela Pachón-Peña, Conor Donnelly, Catalina Ruiz-Cañada, Adam Katz, Sonia Fernández-Veledo, Joan Vendrell, Robert Sackstein
The clinical effectiveness of systemically-administered human mesenchymal stem cells (hMSCs) depends on their capacity to engage vascular endothelium. hMSCs derived from bone marrow (BM-hMSCs) natively lack endothelial binding capacity but express a CD44 glycovariant containing N-linked sialyllactosamines that can be α(1,3)-fucosylated using fucosyltransferase- VI (FTVI) to enforce sLe(X) decorations, thereby creating hematopoietic cell E-/L-selectin ligand (HCELL). HCELL expression programs potent shear-resistant adhesion of circulating cells to endothelial beds expressing E-selectin...
November 26, 2016: Stem Cells
https://www.readbyqxmd.com/read/27886554/a-biomaterial-assisted-mesenchymal-stromal-cell-therapy-alleviates-colonic-radiation-induced-damage
#11
Lara Moussa, Girish Pattappa, Bastien Doix, Sarra-Louiza Benselama, Christelle Demarquay, Marc Benderitter, Alexandra Sémont, Radia Tamarat, Jérôme Guicheux, Pierre Weiss, Gildas Réthoré, Noëlle Mathieu
Healthy tissues surrounding abdomino-pelvic tumours can be impaired by radiotherapy, leading to chronic gastrointestinal complications with substantial mortality. Adipose-derived Mesenchymal Stromal Cells (Ad-MSCs) represent a promising strategy to reduce intestinal lesions. However, systemic administration of Ad-MSCs results in low cell engraftment within the injured tissue. Biomaterials, able to encapsulate and withstand Ad-MSCs, can overcome these limitations. A silanized hydroxypropylmethyl cellulose (Si-HPMC) hydrogel has been designed and characterized for injectable cell delivery using the operative catheter of a colonoscope...
November 16, 2016: Biomaterials
https://www.readbyqxmd.com/read/27883074/adipose-stem-cells-display-higher-regenerative-capacities-and-more-adaptable-electro-kinetic-properties-compared-to-bone-marrow-derived-mesenchymal-stromal-cells
#12
Ahmed El-Badawy, Marwa Amer, Reda Abdelbaset, Sameh N Sherif, Marwan Abo-Elela, Yehya H Ghallab, Hamdy Abdelhamid, Yehea Ismail, Nagwa El-Badri
Adipose stem cells (ASCs) have recently emerged as a more viable source for clinical applications, compared to bone-marrow mesenchymal stromal cells (BM-MSCs) because of their abundance and easy access. In this study we evaluated the regenerative potency of ASCs compared to BM-MSCs. Furthermore, we compared the dielectric and electro-kinetic properties of both types of cells using a novel Dielectrophoresis (DEP) microfluidic platform based on a printed circuit board (PCB) technology. Our data show that ASCs were more effective than BM-MSCs in promoting neovascularization in an animal model of hind-limb ischemia...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27882538/gene-therapy-with-mesenchymal-stem-cells-expressing-ifn%C3%A3-ameliorates-neuroinflammation-in-experimental-models-of-multiple-sclerosis
#13
C Marin-Bañasco, K Benabdellah, C Melero-Jerez, B Oliver, M J Pinto-Medel, I Hurtado-Guerrero, F de Castro, D Clemente, O Fernández, F Martin, L Leyva, M Suardíaz
BACKGROUND AND PURPOSE: Recombinant IFNß is one of the first line treatments in multiple sclerosis (MS), despite its lack of efficiency in some patients. In this context, mesenchymal stem cells (MSCs) represent a promising therapeutic alternative due to their immunomodulatory properties and multipotency. Moreover, taking advantage of their pathotropism ability, these cells can be genetically modified to be used as carriers for delivering or secreting therapeutic drugs into injured tissues...
November 24, 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27882169/efficacy-of-mesenchymal-stem-cells-in-treating-patients-with-osteoarthritis-of-the-knee-a-meta-analysis
#14
Gang-Hua Cui, Yang Yang Wang, Chang-Jun Li, Chen-Hui Shi, Wei-Shan Wang
To assess the clinical efficacy and safety of mesenchymal stem cell (MSC) treatment for osteoarthritis of the knee (KOA), a systematic electronic literature search was performed on PubMed, EMBASE and Web of Science. Studies published in English from the earliest record to December 2014 were searched using the following keywords: Cartilage defect, cartilage repair, osteoarthritis, KOA, stem cells, MSCs, bone marrow concentrate (BMC), adipose-derived mesenchymal stem cells, synovial-derived mesenchymal stem cells and peripheral blood-derived mesenchymal stem cells...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27882083/dimethyloxaloylglycine-increases-bone-repair-capacity-of-adipose-derived-stem-cells-in-the-treatment-of-osteonecrosis-of-the-femoral-head
#15
Zhen-Hong Zhu, Wen-Qi Song, Chang-Qing Zhang, Ji-Min Yin
Mesenchymal stem cells have been widely studied to promote local bone regeneration of osteonecrosis of the femoral head (ONFH). Previous studies observed that dimethyloxaloylglycine (DMOG) enhanced the angiogenic and osteogenic activity of mesenchymal stem cells by activating the expression of hypoxia inducible factor-1α (HIF-1α), thereby improving the bone repair capacity of mesenchymal stem cells. In the present study, it was investigated whether DMOG could increase the bone repair capacity of adipose-derived stem cells (ASCs) in the treatment of ONFH...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27881051/mechanisms-of-immune-suppression-utilized-by-canine-adipose-and-bone-marrow-derived-mesenchymal-stem-cells
#16
Lyndah Chow, Valerie Johnson, Jonathan W Coy, Daniel P Regan, Steven W Dow
Mesenchymal stem cells (MSC) from rodents and humans have been shown to suppress T cells by distinct primary pathways, with NO-dependent pathways dominating in rodents and IDO-dependent pathways dominating in humans. However, the immune suppressive pathways utilized by canine MSC have not been as thoroughly studied, nor have BM-MSC and Ad-MSC been directly compared for their immune modulatory potency or pathway utilization. Therefore, canine BM-MSC and Ad-MSC were generated in vitro and their potency in suppressing T cell proliferation and cytokine production was compared, as well as differential gene expression...
November 23, 2016: Stem Cells and Development
https://www.readbyqxmd.com/read/27878286/obesity%C3%A2-associated-mir%C3%A2-148a-is-regulated-by-cytokines-and-adipokines-via-a-transcriptional-mechanism
#17
Chunmei Shi, Lingxia Pang, Chenbo Ji, Jiaqin Wang, Ning Lin, Jiantao Chen, Ling Chen, Lei Yang, Fangyan Huang, Yahui Zhou, Xirong Guo, Hui Liang, Min Zhang
Our previous study revealed that miR‑148a, a cyclic adenosine monophosphate‑response element binding protein‑modulated microRNA that promotes adipocyte differentiation by inhibiting Wnt1, is a biomarker of obesity in human subjects and a mouse model. The present study investigated the expression of miR‑148a in human adipose tissue‑derived mesenchymal stem cells (hMSCs‑Ad) in response to inflammatory cytokines and adipokines to clarify its underlying mechanism. miR‑148a expression was detected using reverse transcription‑quantitative polymerase chain reaction analysis and its promoter activity was detected with a luciferase assay...
November 14, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27878248/immunomodulatory-effects-of-ox40ig-gene-modified-adipose-tissue-derived-mesenchymal-stem-cells-on-rat-kidney-transplantation
#18
Tao Liu, Yue Zhang, Zhongyang Shen, Xunfeng Zou, Xiaobo Chen, Li Chen, Yuliang Wang
Recent studies have suggested that adipose tissue-derived mesenchymal stem cell (ADSC) therapy and OX40 costimulation blockade are two immunomodulatory strategies used to suppress the immune response to alloantigens. However, relatively little has been reported regarding the immunomodulatory potential of the abilityof these two strategies to synergize. Thus, in the present study, we aimed to investigate OX40-Ig fusion protein (OX40Ig) expression in ADSCs and to validate their more potent immunosuppressive activity in preventing renal allograft rejection...
November 21, 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27874253/combined-delivery-of-fgf-2-tgf-%C3%AE-1-and-adipose-derived-stem-cells-from-an-engineered-periosteum-to-a-critical-sized-mouse-femur-defect
#19
Raimundo Romero, John K Travers, Emilie Asbury, Attie Pennybaker, Laura Chubb, Ruth Rose, Nicole P Ehrhart, Matt J Kipper
Critical-sized long bone defects suffer from complications including impaired healing and non-union due to substandard healing and integration of devitalized bone allograft. Removal of the periosteum contributes to the limited healing of bone allografts. Restoring a periosteum on bone allografts may provide improved allograft healing and integration. This article reports a polysaccharide-based tissue engineered periosteum that delivers basic fibroblast growth factor (FGF-2), transforming growth factor-β1 (TGF-β1), and adipose-derived mesenchymal stem cells (ASCs) to a critical-sized mouse femur defect...
November 22, 2016: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/27873362/influence-of-mesenchymal-stem-cells-conditioned-media-on-proliferation-of-urinary-tract-cancer-cell-lines-and-their-sensitivity-to-ciprofloxacin
#20
Malgorzata Maj, Anna Bajek, Ewelina Nalejska, Dorota Porowinska, Tomasz Kloskowski, Lidia Gackowska, Tomasz Drewa
Mesenchymal stem cells (MSCs) are known to interact with cancer cells through direct cell-to-cell contact and secretion of paracrine factors, although their exact influence on tumor progression in vivo remains unclear. To better understand how fetal and adult stem cells affect tumors, we analyzed viability of human renal (786-0) and bladder (T24) carcinoma cell lines cultured in conditioned media harvested from amniotic fluid-derived stem cells (AFSCs) and adipose-derived stem cells (ASCs). Both media reduced metabolic activity of 786-0 cells, however, decreased viability of T24 cells was noted only after incubation with conditioned medium from ASCs...
November 22, 2016: Journal of Cellular Biochemistry
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