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Fat derived stem cell

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https://www.readbyqxmd.com/read/28445787/adipose-derived-stem-cells-were-impaired-in-restricting-cd4-t-cell-proliferation-and-polarization-in-type-2-diabetic-apoe-mouse
#1
Ming-Hao Liu, Ya Li, Lu Han, Yao-Yuan Zhang, Di Wang, Zhi-Hao Wang, Hui-Min Zhou, Ming Song, Yi-Hui Li, Meng-Xiong Tang, Wei Zhang, Ming Zhong
BACKGROUND: Atherosclerosis (AS) is the most common and serious complication of type 2 diabetes mellitus (T2DM) and is accelerated via chronic systemic inflammation rather than hyperglycemia. Adipose tissue is the major source of systemic inflammation in abnormal metabolic state. Pro-inflammatory CD4(+)T cells play pivotal role in promoting adipose inflammation. Adipose-derived stem cells (ADSCs) for fat regeneration have potent ability of immunosuppression and restricting CD4(+)T cells as well...
April 23, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28445518/use-of-human-fat-grafting-in-the-prevention-of-perineural-adherence-experimental-study-in-athymic-mouse
#2
Mario Cherubino, Igor Pellegatta, Alessandro Crosio, Luigi Valdatta, Stefano Geuna, Rosalba Gornati, Pierluigi Tos
Perineural adherences represent a problem after surgery involving peripheral neural system. Fat-grafting with adipose derived stem cells (ASCs) with their pro-regenerative characteristics can be important to prevent the neural damage or to facilitate the neural regeneration. Our idea was to use the fat-grafting as an anti-adherence device and test its efficacy on a postsurgical scar animal model and comparing to an antiadhesive gel. 32 athymic mice were operated under magnification, we exposed both sciatic nerves...
2017: PloS One
https://www.readbyqxmd.com/read/28445363/indomethacin-enhances-fat-graft-retention-by-up-regulating-adipogenic-genes-and-reducing-inflammation
#3
Weiqing Zhan, Shaun S Tan, Xiaolian Han, Jason A Palmer, Geraldine M Mitchell, Wayne A Morrison
BACKGROUND: Cell-assisted lipotransfer has been promisingly applied to restore soft-tissue defects in plastic surgery; however, the harvesting of stromal vascular fraction increases morbidity and poses potential safety hazards. The authors investigated whether adding indomethacin, an antiinflammatory proadipogenic drug, to the fat graft at the time of transplantation would enhance the final graft volume compared with cell-assisted lipotransfer. METHODS: In vitro, human adipose-derived stem cells were cultured in conditioned growth media supplemented with various doses of indomethacin to investigate adipogenesis and the expression of the adipogenic genes...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28439674/adipose-derived-stem-cell-asc-enriched-fat-grafting-experiments-using-white-rabbits-and-an-automated-cell-processing-apparatus
#4
Natsuko Kakudo, Naoki Morimoto, Takeshi Ogawa, Masakatsu Hihara, Fangyuan Lai, Kenji Kusumoto
The grafting of fat mixed with adipose-derived stem cells (ASCs) is being increasingly applied to compensate for the disadvantages of previous fat grafting methods. Devices that automatically isolate fat stem cells also have recently been developed. ASCs were isolated from the inguinal region of White rabbits using Icellator(®), and the number of cells and their viability were measured. The cell count per fat graft (mL) was adjusted to the following concentrations and subcutaneously transplanted into the back: Control group, Fat + PBS; Fat + ASCs (×0...
April 24, 2017: Medical Molecular Morphology
https://www.readbyqxmd.com/read/28423354/cd54-rabbit-adipose-derived-stem-cells-overexpressing-hif-1%C3%AE-facilitate-vascularized-fat-flap-regeneration
#5
De-Quan Li, Guan-Ming Lu, Yi-Dan Liang, Zhi-Jie Liang, Min-Hong Huang, Qi-Liu Peng, Dong-Hua Zou, Rong-He Gu, Fang-Tian Xu, Hui Gao, Zhen-Dong Chen, Guang-Yi Chi, Zhong-Heng Wei, Li Chen, Hong-Mian Li
Fat flap transplantation is frequently performed in patients suffering from soft tissue defects resulting from disease or trauma. This study explored the feasibility of constructing vascularized fat flaps using rabbit adipose-derived stem cells (rASCs) and collagen scaffolds in a rabbit model. We evaluated rASCs proliferation, paracrine function, adipogenesis, vascularization, and CD54 expression, with or without HIF-1α transfection in vitro and in vivo. We observed that adipogenic differentiation potential was greater in rASCs with high CD54 expression (CD54+rASCs) than in those with low expression (CD54-rASCs), both in vitro and in vivo...
April 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28412246/absence-of-nucks-augments-paracrine-effects-of-mesenchymal-stem-cells-mediated-cardiac-protection
#6
Yuelin Zhang, Sinming Chiu, Xiaoting Liang, Yuet-Hung Chai, Yiming Qin, Junwen Wang, Xiang Li, Beiying Qiu, Vinay Tergaonkar, Hung-Fat Tse, Qizhou Lian
Bone marrow-derived mesenchymal stem cells (BM-MSCs) contribute to myocardial repair after myocardial infarction (MI) by secreting a panel of growth factors and cytokines. This study was to investigate the potential mechanisms of the nuclear casein kinase and cyclin-dependent kinase substrate 1 (NUCKS) in regulation of the profiles of BM-MSCs secretion and compare the therapeutic efficacy of NUCKS(-/-)- and wide type-BM-MSCs (WT-BM-MSCs) on MI. The secretion profiles between NUCKS(-/-)- and WT-BM-MSCs under hypoxia (1%O2) were analyzed...
April 12, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28401032/modern-trends-in-lipomodeling
#7
REVIEW
Ahmed Hassan El-Sabbagh
Lipomodeling is the process of relocating autologous fat to change the shape, volume, consistency, and profile of tissues, with the aim of reconstructing, rejuvenating, and regenerating body features. There have been several important advancements in lipomodeling procedures during the last thirty years. Four clinical steps are important for the success of engraftment: fat harvesting, fat processing, fat reinjection, and preconditioning of the recipient site. With the discovery of adipose derived stem cells and dedifferentiated cells, fat cells become a major tool of regenerative medicine...
2017: GMS Interdisciplinary Plastic and Reconstructive Surgery DGPW
https://www.readbyqxmd.com/read/28398475/fat-mass-and-obesity-associated-fto-protein-regulates-adult-neurogenesis
#8
Liping Li, Liqun Zang, Feiran Zhang, Junchen Chen, Hui Shen, Liqi Shu, Feng Liang, Chunyue Feng, Deng Chen, Huikang Tao, Tianlei Xu, Ziyi Li, Yunhee Kang, Hao Wu, Lichun Tang, Pumin Zhang, Peng Jin, Qiang Shu, Xuekun Li
Fat mass and obesity-associated gene (FTO) is a member of the Fe (II)- and oxoglutarate-dependent AlkB dioxygenase family and is linked to both obesity and intellectual disability. The role of FTO in neurodevelopment and neurogenesis, however, remains largely unknown. Here we show that FTO is expressed in adult neural stem cells and neurons and displays dynamic expression during postnatal neurodevelopment. The loss of FTO leads to decreased brain size and body weight. We find that FTO deficiency could reduce the proliferation and neuronal differentiation of adult neural stem cells in vivo, which leads to impaired learning and memory...
April 7, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28386120/from-skeletal-muscle-to-stem-cells-an-innovative-and-minimally-invasive-process-for-multiple-species
#9
J Ceusters, J-Ph Lejeune, C Sandersen, A Niesten, L Lagneaux, D Serteyn
Bone marrow and adipose tissue represent the two most commonly exploited sources of adult mesenchymal stem cells for musculoskeletal applications. Unfortunately the sampling of bone marrow and fat tissue is invasive and does not always lead to a sufficient number of cells. The present study describes a novel sampling method based on microbiopsy of skeletal muscle in man, pigs, dogs and horses. The process includes explant of the sample, Percoll density gradient for isolation and subsequent culture of the cells...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28382782/fatty-acid-binding-protein-4-regulates-fatty-infiltration-after-rotator-cuff-tear-by-hypoxia-inducible-factor-1-in-mice
#10
Yong-Soo Lee, Ja-Yeon Kim, Kyung-Soo Oh, Seok Won Chung
BACKGROUND: Fatty infiltration in skeletal muscle is directly linked to loss of muscle strength and is associated with various adverse physical outcomes such as muscle atrophy, inflammation, insulin resistance, mobility impairments, and even mortality in the elderly. Aging, mechanical unloading, muscle injury, and hormonal imbalance are main causes of muscle fat accumulation, and the fat cells are derived from muscle stem cells via adipogenic differentiation. However, the pathogenesis and molecular mechanisms of fatty infiltration in muscles are still not fully defined...
April 5, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28376564/adipogenic-differentiation-of-mesenchymal-stem-cells-alters-their-immunomodulatory-properties-in-a-tissue-specific-manner
#11
Hafsa Munir, Lewis S C Ward, Lozan Sheriff, Samuel Kemble, Saba Nayar, Francesca Barone, Gerard B Nash, Helen M McGettrick
Chronic inflammation is associated with formation of ectopic fat deposits that might represent damage-induced aberrant mesenchymal stem cell (MSC) differentiation. Such deposits are associated with increased levels of inflammatory infiltrate and poor prognosis. Here we tested the hypothesis that differentiation from MSC to adipocytes in inflamed tissue might contribute to chronicity through loss of immunomodulatory function. We assessed the effects of adipogenic differentiation of MSC isolated from bone marrow or adipose tissue on their capacity to regulate neutrophil recruitment by endothelial cells and compared the differentiated cells to primary adipocytes from adipose tissue...
April 4, 2017: Stem Cells
https://www.readbyqxmd.com/read/28374574/a-comparative-assessment-of-adipose-derived-stem-cells-from-subcutaneous-and-visceral-fat-as-a-potential-cell-source-for-knee-osteoarthritis-treatment
#12
Yan Tang, Zhang-Yi Pan, Ying Zou, Yi He, Peng-Yuan Yang, Qi-Qun Tang, Feng Yin
The intra-articular injection of adipose-derived stem cells (ASCs) is a novel potential therapy for patients with osteoarthritis (OA). However, the efficacy of ASCs from different regions of the body remains unknown. This study investigated whether ASCs from subcutaneous or visceral adipose tissue provide the same improvement of OA. Mouse and human subcutaneous and visceral adipose tissue were excised for ASC isolation. Morphology, proliferation, surface markers and adipocyte differentiation of subcutaneous ASCs (S-ASCs) and visceral ASCs (V-ASCs) were analysed...
April 4, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28369825/cholinergic-and-dopaminergic-neuronal-differentiation-of-human-adipose-tissue-derived-mesenchymal-stem-cells
#13
H E Marei, A El-Gamal, A Althani, N Afifi, A Abd-Elmaksoud, A Farag, C Cenciarelli, Thomas Caceci, Anwarul Hasan
Mesenchymal stem cells (MSCs) are multipotent cells that can differentiate into various cell types such as cartilage, bone, and fat cells. Recent studies have shown that induction of MSCs in vitro by growth factors including epidermal growth factor (EGF) and fibroblast growth factor (FGF2) causes them to differentiate into neural like cells. These cultures also express ChAT, a cholinergic marker; and TH, a dopaminergic marker for neural cells. To establish a protocol with maximum differentiation potential, we examined MSCs under three experimental culture conditions using neural induction media containing FGF2, EGF, BMP-9, retinoic acid and heparin...
March 30, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28351943/apc-but-not-obesity-synergizes-with-pten-to-drive-intestinal-stem-cell-tumors
#14
Tahmineh Tabrizian, Donghai Wang, Fangxia Guan, Zunju Hu, Amanda Beck, Fabien Delahaye, Derek M Huffman
Obesity is a major risk factor for colorectal cancer and can accelerate Lgr5+ intestinal stem cell (ISC)-derived tumorigenesis following inactivation of Apc. However, whether non-canonical pathways involving PI3K-Akt signaling in ISCs can lead to tumor formation, and if this can be further exacerbated by obesity is unknown. Despite the synergy between Pten and Apc inactivation in epithelial cells on intestinal tumor formation, their combined role in Lgr5+-ISCs, which are the most rapidly dividing ISC population in the intestine, is unknown...
March 28, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28342760/correction-of-hirschsprung-associated-mutations-in-human-induced-pluripotent-stem-cells-via-crispr-cas9-restores-neural-crest-cell-function
#15
Frank Pui-Ling Lai, Sin-Ting Lau, John Kwong-Leong Wong, Hongsheng Gui, Reeson Xu Wang, Tingwen Zhou, Wing Hon Lai, Hung-Fat Tse, Paul Kwong-Hang Tam, Maria-Mercedes Garcia-Barcelo, Elly Sau-Wai Ngan
BACKGROUND & AIM: Hirschsprung disease is caused by failure of enteric neural crest cells (ENCCs) to fully colonize the bowel, leading to bowel obstruction and megacolon. Heterozygous mutations in the coding region of the RET gene cause a severe form of Hirschsprung disease (total colonic aganglionosis). However, 80% of HSCR patients have short-segment Hirschsprung disease (S-HSCR), which has not been associated with genetic factors. We sought to identify mutations associated S-HSCR, and used the CRISPR/Cas9 gene editing system to determine how mutations affect ENCC function...
March 22, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28338809/resveratrol-derivative-btm-0512-mitigates-obesity-by-promoting-beige-remodeling-of-subcutaneous-preadipocytes
#16
Qingqing Li, Kuansong Wang, Yipeng Ma, Chunxiang Qin, Changsheng Dong, Ping Jin, Yan Wu, Xiaoming Xiong, Niansheng Li, Changping Hu, Jun Peng, Zhichun Yang
Recent studies revealed that sirtuin 1 (SIRT1) is involved in the regulation of energy metabolism and its agonist resveratrol showed anti-obesity effect. This study aims to determine whether BTM-0512, a novel derivative of resveratrol, acts as an antagonist of obesity and to explore its possible mechanisms. High-fat diet (HFD)-induced obese mice were intragastrically administered with BTM-0512 (5, 10, and 20 mg/kg/day) or resveratrol (10 mg/kg/day). It was found that the body weight, Lee's index, ratio of visceral adipose tissue (VAT) to body weight, and blood glucose were significantly reduced in BTM-0512-treated mice when compared with those in mice treated with resveratrol...
February 24, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28293494/survival-and-inflammatory-response-in-adipose-derived-mesenchymal-stem-cell-enriched-mouse-fat-grafts
#17
Anadi Begic, Björn L Isfoss, Linn K Lønnerød, Alexander Vigen, Jan Ø Moskaug
BACKGROUND: Adipose tissue-derived mesenchymal stem cells (ATMSCs) are currently used in grafting procedures in a number of clinical trials. The reconstructive role of such cells in fat graft enrichment is largely unclear. This study was undertaken to assess survival and inflammatory response in fat grafts enriched with ATMSCs in mice. METHODS: ATMSC-enriched adipose tissue was grafted subcutaneously in a clinically relevant manner in mice, and survival and inflammatory response were determined by bioluminescence imaging of transgenic tissue constitutively expressing luciferase or driven by inflammation in wild-type animals...
December 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28292562/a-quantitative-analysis-of-multilineage-differentiating-stress-enduring-muse-cells-in-human-adipose-tissue-and-efficacy-of-melanocytes-induction
#18
Takeshi Yamauchi, Kenshi Yamasaki, Kenichiro Tsuchiyama, Saaya Koike, Setsuya Aiba
We have shown previously that multilineage-differentiating stress-enduring (Muse) cells in neonatal fibroblasts can differentiate into functional melanocytes. In this study, we quantitate Muse cells in adipose-mesenchymal stem cells (adipose-MSCs) of human subcutaneous tissue obtained from 11 subjects of various ages, and measured efficacy of melanocytes induction from Adipose-MSC-derived Muse cells (hASC-Muse cells). There was a statistically significant negative correlation between the age of donors and the numbers of adipose-MSCs recovered per g fat as well as the percentage of SSEA3+ cells in the adipose-MSC populations, but isolated hASC-Muse cells showed pluripotency and growth curves equally regardless the age of donors...
March 6, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28269759/effects-of-different-concentrations-of-platelet-rich-plasma-and-platelet-poor-plasma-on-vitality-and-differentiation-of-autologous-adipose-tissue-derived-stem-cells
#19
Oliver Felthaus, Lukas Prantl, Mona Skaff-Schwarze, Silvan Klein, Alexandra Anker, Marco Ranieri, Britta Kühlmann
BACKGROUND: Autologous fat grafts and adipose-derived stem cells (ASCs) can be used to treat soft tissue defects. However, the results are inconsistent and sometimes comprise tissue resorption and necrosis. This might be due to insufficient vascularization. Platelet-rich plasma (PRP) is a source of concentrated autologous platelets. The growth factors and cytokines released by platelets can facilitate angiogenesis. The simultaneous use of PRP might improve the regeneration potential of fat grafts...
February 28, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28244687/vegf165-induces-differentiation-of-hair-follicle-stem-cells-into-endothelial-cells-and-plays-a-role-in-in-vivo-angiogenesis
#20
Renfu Quan, Weibin Du, Xuan Zheng, Shichao Xu, Qiang Li, Xing Ji, Ximei Wu, Rongxue Shao, Disheng Yang
Within the vascular endothelial growth factor (VEGF) family of five subtypes, VEGF165 secreted by endothelial cells has been identified to be the most active and widely distributed factor that plays a vital role in courses of angiogenesis, vascularization and mesenchymal cell differentiation. Hair follicle stem cells (HFSCs) can be harvested from the bulge region of the outer root sheath of the hair follicle and are adult stem cells that have multi-directional differentiation potential. Although the research on differentiation of stem cells (such as fat stem cells and bone marrow mesenchymal stem cells) to the endothelial cells has been extensive, but the various mechanisms and functional forms are unclear...
February 28, 2017: Journal of Cellular and Molecular Medicine
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