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Adipose stem cell

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https://www.readbyqxmd.com/read/27921242/human-mesenchymal-stem-cells-from-adipose-tissue-differentiated-into-neuronal-or-glial-phenotype-express-different-aquaporins
#1
Rosanna Avola, Adriana Carol Eleonora Graziano, Giovanna Pannuzzo, Venera Cardile
Aquaporins (AQPs) are 13 integral membrane proteins that provide selective pores for the rapid movement of water and other uncharged solutes, across cell membranes. Recently, AQPs have been focused for their role in production, circulation, and homeostasis of the cerebrospinal fluid and their importance in several human diseases is becoming clear. This study investigated the time course (0, 14, and 28 days) of AQP1, 4, 7, 8, and 9 during the neural differentiation of human mesenchymal stem cells (MSCs) from adipose tissue (AT)...
December 5, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27921202/endogenous-stem-cells-were-recruited-by-defocused-low-energy-shock-wave-in-treating-diabetic-bladder-dysfunction
#2
Yang Jin, Lina Xu, Yong Zhao, Muwen Wang, Xunbo Jin, Haiyang Zhang
Defocused low-energy shock wave (DLSW) has been shown effects on activating mesenchymal stromal cells (MSCs) in vitro. In this study, recruitment of endogenous stem cells was firstly examined as an important pathway during the healing process of diabetic bladder dysfunction (DBD) treated by DLSW in vivo. Neonatal rats received intraperitoneal injection of 5-ethynyl-2-deoxyuridine (EdU) and then DBD rat model was created by injecting streptozotocin. Four weeks later, DLSW treatment was performed. Afterward, their tissues were examined by histology...
December 5, 2016: Stem Cell Reviews
https://www.readbyqxmd.com/read/27921032/the-collection-of-adipose-derived-stem-cells-using-water-jet-assisted-lipoplasty-for-their-use-in-plastic-and-reconstructive-surgery-a-preliminary-study
#3
Valeria Purpura, Elena Bondioli, Davide Melandri, Pier C Parodi, Luca Valenti, Michele Riccio
The graft of autologous fat for the augmentation of soft tissue is a common practice frequently used in the field of plastic and reconstructive surgery. In addition, the presence of adipose derived stem cells (ASCs) in adipose tissue stimulates the regeneration of tissue in which it is applied after the autologous fat grafting improving the final clinical results. Due to these characteristics, there is an increasing interest in the use of ASCs for the treatment of several clinical conditions. As a consequence, the use of clean room environment is required for the production of cell-based therapies...
2016: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/27920882/paroxetine-can-enhance-neurogenesis-during-neurogenic-differentiation-of-human-adipose-derived-stem-cells
#4
Maliheh Jahromi, Shahnaz Razavi, Nushin Amirpour, Zahra Khosravizadeh
BACKGROUND: Some antidepressant drugs can promote neuronal cell proliferation in vitro as well as hippocampal neurogenesis in human and animal models. Furthermore, adipose tissue is an available source of adult stem cells with the ability to differentiate in to multiple lineages. Therefore, human Adipose-Derived Stem Cells (hAD-SCs) may be a suitable source for regenerative medical applications. Since there is no evidence for the effect of Paroxetine as the most commonly prescribed antidepressant drug for neurogenic potential of hADSCs, an attempt was made to determine the effect of Paroxetine on proliferation and neural differentiation of hADSCs...
October 2016: Avicenna Journal of Medical Biotechnology
https://www.readbyqxmd.com/read/27919839/heparin-hyaluronic-acid-hydrogel-for-efficient-cellular-activities-of-3d-encapsulated-adipose-derived-stem-cells
#5
Kihak Gwon, Eunsol Kim, Giyoong Tae
We have developed stem cell-responsive, heparin-hyaluronic acid (Hep-HA) hydrogel, crosslinked by thiolated heparin (Hep-SH) and methacrylated hyaluronic acid (HA-MA) via visible light mediated, thiol-ene reaction. Physical properties of the hydrogel (gelation time, storage modulus, and swelling ratio) were tunable by adjusting light intensity, initiator/polymer concentration, and precursor pH. Culture of human adipose derived mesenchymal stem cells (ADSCs) using this hydrogel was characterized and compared with the control hydrogels including Hep-PEG hydrogel, PEG-HA hydrogel...
December 2, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27916375/the-role-of-the-adaptive-immune-system-in-burn-induced-heterotopic-ossification-and-mesenchymal-cell-osteogenic-differentiation
#6
Kavitha Ranganathan, Shailesh Agarwal, David Cholok, Shawn Loder, Jonathan Li, Hsiao Hsin Sung Hsieh, Stewart C Wang, Steven R Buchman, Benjamin Levi
BACKGROUND: Heterotopic ossification (HO) is the pathologic process of extraskeletal bone formation. Although the exact etiology remains unknown, inflammation appears to catalyze disease progression. The goal of this study is to determine the impact of the adaptive immune system on HO. METHODS: HO was induced in 8-wk-old control C57BL/6 and immunocompromised Rag1tm1Mom (Rag1 KO) male mice deficient in B- and T-lymphocytes via combined Achilles tenotomy and burn injury...
November 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27915981/molecular-cellular-and-pharmaceutical-aspects-of-autologous-grafts-for-peri-implant-hard-and-soft-tissue-defects
#7
Jiayu Lu, Yongming Hao, Wei Zhao, Chengqi Lv, Derong Zou
The lack of supporting hard and soft tissues always prevents the rehabilitation with dental implants. Among various hard and soft tissue augmentation procedures, autologous grafts have been considered to be the gold standard. Autologous mesenchymal stem cells (MSCs) from bone marrow, dental tissue and adipose tissue have been described as promising alternatives for bone regeneration in the field of dental implantation. Mucosal cells, gingival fibroblasts and dental progenitor cells (DPS) can enhance peri-implant soft tissue augmentation and regenerate periodontal tissues around dental implants...
December 1, 2016: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/27913779/comparison-of-proliferative-and-immunomodulatory-potential-of-adipose-derived-mesenchymal-stem-cells-from-young-and-geriatric-cats
#8
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/27913195/breast-cancer-derived-extracellular-vesicles-stimulate-myofibroblast-differentiation-and-pro-angiogenic-behavior-of-adipose-stem-cells
#9
REVIEW
Young Hye Song, Christine Warncke, Sung Jin Choi, Siyoung Choi, Aaron E Chiou, Lu Ling, Han-Yuan Liu, Susan Daniel, Marc A Antonyak, Richard A Cerione, Claudia Fischbach
Adipose-derived stem cells (ASCs) are abundantly present in the mammary microenvironment and can promote breast cancer malignancy by differentiating into myofibroblasts. However, it remains largely unclear which role tumor-derived extracellular vesicles (TEVs) play in this process. Here, we used microfabricated, type I collagen-based 3-D tissue culture platforms to investigate the effect of breast cancer cell-derived TEVs on ASCs myofibroblast differentiation and consequential changes in extracellular matrix remodeling and vascular sprouting...
November 29, 2016: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/27913088/effect-of-suction-pressures-on-cell-yield-and-functionality-of-the-adipose-derived-stromal-vascular-fraction
#10
Yuan-Wen Chen, Jing-Ru Wang, Xuan Liao, Sheng-Hong Li, Li-Ling Xiao, Biao Cheng, Guang-Hui Xie, Jian-Xing Song, Hong-Wei Liu
OBJECTIVE: The present study was performed to explore the effect of suction pressures on the cell yield of adipose-derived stromal vascular fraction (SVF) and the functionality of adipose-derived stem cells (ADSCs), situated in the SVF, and to develop optimal parameters of harvesting SVF for clinical use. METHODS: Adipose tissue was harvested from the lower abdomen of 10 patients by suction-assisted lipoplasty. Suction pressure was either -30 ± 5 kPa or -55 ± 5 kPa...
November 11, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27912085/pdgfa-makes-thin-skin-thicker-molecular-regulation-of-adipose-progenitor-maintenance
#11
Shingo Kajimura
Adipocyte progenitor proliferation and self-renewal contribute to adipose tissue maintenance; however, the regulatory circuits of these processes are less understood. In this issue of Cell Stem Cell, Rivera-Gonzalez et al. (2016) show that PDGFA, which acts through PI3K-Akt pathways, plays a vital role in the proliferation and maintenance of adipocyte progenitors in dermal adipose tissues.
December 1, 2016: Cell Stem Cell
https://www.readbyqxmd.com/read/27910868/relationship-between-nanotopographical-alignment-and-stem-cell-fate-with-live-imaging-and-shape-analysis
#12
Peter Newman, Jorge Luis Galenano-Niño, Pamela Graney, Joselito M Razal, Andrew I Minett, João Ribas, Raquel Ovalle-Robles, Maté Biro, Hala Zreiqat
The topography of a biomaterial regulates cellular interactions and determine stem cell fate. A complete understanding of how topographical properties affect cell behavior will allow the rational design of material surfaces that elicit specified biological functions once placed in the body. To this end, we fabricate substrates with aligned or randomly organized fibrous nanostructured topographies. Culturing adipose-derived stem cells (ASCs), we explore the dynamic relationship between the alignment of topography, cell shape and cell differentiation to osteogenic and myogenic lineages...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27909015/diabetic-human-adipose-tissue-derived-mesenchymal-stem-cells-fail-to-differentiate-in-functional-adipocytes
#13
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/27906070/subretinal-adipose-tissue-derived-mesenchymal-stem-cell-implantation-in-advanced-stage-retinitis-pigmentosa-a-phase-i-clinical-safety-study
#14
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/27906060/discrete-adipose-derived-stem-cell-subpopulations-may-display-differential-functionality-after-in-vitro-expansion-despite-convergence-to-a-common-phenotype-distribution
#15
Frederik Mølgaard Nielsen, Simone Elkjær Riis, Jens Isak Andersen, Raphaëlle Lesage, Trine Fink, Cristian Pablo Pennisi, Vladimir Zachar
BACKGROUND: Complex immunophenotypic repertoires defining discrete adipose-derived stem cell (ASC) subpopulations may hold a key toward identifying predictors of clinical utility. To this end, we sorted out of the freshly established ASCs four subpopulations (SPs) according to a specific pattern of co-expression of six surface markers, the CD34, CD73, CD90, CD105, CD146, and CD271, using polychromatic flow cytometry. METHOD: Using flow cytometry-associated cell sorting and analysis, gating parameters were set to select for a CD73(+)CD90(+)CD105(+) phenotype plus one of the four following combinations, CD34(-)CD146(-)CD271(-) (SP1), CD34(-)CD146(+)CD271(-) (SP2), CD34(+)CD146(+)CD271(-) (SP3), and CD34(-)CD146(+)CD271(+) (SP4)...
December 1, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27904496/adipose-derived-stem-cells-enhance-myogenic-differentiation-in-the-mdx-mouse-model-of-muscular-dystrophy-via-paracrine-signaling
#16
Ji-Qing Cao, Ying-Yin Liang, Ya-Qin Li, Hui-Li Zhang, Yu-Ling Zhu, Jia Geng, Li-Qing Yang, Shan-Wei Feng, Juan Yang, Jie Kong, Cheng Zhang
Adipose-derived stem cells have been shown to promote peripheral nerve regeneration through the paracrine secretion of neurotrophic factors. However, it is unclear whether these cells can promote myogenic differentiation in muscular dystrophy. Adipose-derived stem cells (6 × 10(6)) were injected into the gastrocnemius muscle of mdx mice at various sites. Dystrophin expression was found in the muscle fibers. Phosphorylation levels of Akt, mammalian target of rapamycin (mTOR), eIF-4E binding protein 1 and S6 kinase 1 were increased, and the Akt/mTOR pathway was activated...
October 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27900891/chondrogenesis-of-human-adipose-derived-stem-cells-for-future-microtia-repair-using-co-culture-technique
#17
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/27899958/effects-of-adipose-stem-cell-conditioned-medium-on-the-migration-of-vascular-endothelial-cells-fibroblasts-and-keratinocytes
#18
Li Hu, Jiajia Zhao, Jiarong Liu, Niya Gong, Lili Chen
[This retracts the article DOI: 10.3892/etm.2013.887.].
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27895151/high-fat-diet-promotes-mammary-gland-myofibroblast-differentiation-through-mir-140-downregulation
#19
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/27893630/a-comprehensive-in-vitro-comparison-of-preparation-techniques-for-fat-grafting
#20
Libor Streit, Josef Jaros, Veronika Sedlakova, Miroslava Sedlackova, Lubos Drazan, Michal Svoboda, Jakub Pospisil, Tomas Vyska, Jiri Vesely, Ales Hampl
BACKGROUND: Lipomodelling is a technique that uses patient's own fat for tissue regeneration and augmentation. The extent of regenerative effect is reported to be determined by the numbers of adipose tissue-derived stem cells (ASCs) and the viability of cells in processed adipose tissue, which, together with other factors, influence the degree of graft retention. This study addresses whether differences exist in properties of fat graft obtained by three commonly used techniques. METHODS: Adipose tissue harvested from the hypo-gastric regions of 14 patients was processed by decantation, centrifugation, and membrane-based tissue filtration...
November 21, 2016: Plastic and Reconstructive Surgery
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