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https://www.readbyqxmd.com/read/28320058/regional-differences-between-perisynovial-and-infrapatellar-adipose-tissue-depots-and-their-response-to-class-ii-and-iii-obesity-in-patients-with-oa
#1
Natalia S Harasymowicz, Nick D Clement, Asim Azfer, Richard Burnett, Donald M Salter, A Hamish W R Simpson
OBJECTIVE: Obesity is associated with an increased risk of developing Osteoarthritis (OA), which is postulated to be secondary to inflammation from adipose tissue (AT). There are peri-articular adipose depots in synovial joints, the association of this tissue with OA has not been extensively explored. The aim of this study was to investigate differences in local AT depots in knees with OA and changes related to class II and III obesity. METHODS: Synovium and the infrapatellar fat pad (IPFP) were collected during total knee replacement from 69 patients with end-stage OA...
March 20, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28319827/immunophenotypical-characterization-of-canine-mesenchymal-stem-cells-from-perivisceral-and-subcutaneous-adipose-tissue-by-a-species-specific-panel-of-antibodies
#2
Ana Ivanovska, Stefano Grolli, Paolo Borghetti, Francesca Ravanetti, Virna Conti, Elena De Angelis, Francesca Macchi, Roberto Ramoni, Paolo Martelli, Ferdinando Gazza, Antonio Cacchioli
Immunophenotypical characterization of mesenchymal stem cells is fundamental for the design and execution of sound experimental and clinical studies. The scarce availability of species-specific antibodies for canine antigens has hampered the immunophenotypical characterization of canine mesenchymal stem cells (MSC). The aim of this study was to select a panel of species-specific direct antibodies readily useful for canine mesenchymal stem cells characterization. They were isolated from perivisceral and subcutaneous adipose tissue samples collected during regular surgeries from 8 dogs...
February 27, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28303468/human-very-small-embryonic-like-cells-support-vascular-maturation-and-therapeutic-revascularization-induced-by-endothelial-progenitor-cells
#3
Coralie L Guerin, Elisa Rossi, Bruno Saubamea, Audrey Cras, Virginie Mignon, Jean-Sébastien Silvestre, David M Smadja
Very small embryonic-like stem cells (VSELs) are major pluripotent stem cells defined as cells of small size being Lineage- negative, CD133-positive, and CD45-negative. We previously described that human bone marrow VSELs were able to differentiate into endothelial cells and promoted post-ischemic revascularization in mice with surgically induced critical limb ischemia. In the present work, we isolated bone marrow VSELs from patients with critical limb ischemia and studied their ability to support endothelial progenitor cells therapeutic capacity and revascularization potential...
March 16, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28301220/periostin-promotes-migration-proliferation-and-differentiation-of-human-periodontal-ligament-mesenchymal-stem-cells
#4
Ziqiang Wu, Wenyong Dai, Pei Wang, Xiaozhen Zhang, Yi Tang, Lin Liu, Qiaona Wang, Ming Li, Chunbo Tang
PURPOSE: Periostin (POSTN) is critical to bone and dental tissue morphogenesis, postnatal development, and maintenance, however, its roles in tissue repair and regeneration mediated by human periodontal ligament mesenchymal stem cells (PDLSCs) remain unclear. The present study was designed to evaluate the effects of POSTN on hPDLSCs in vitro. MATERIALS AND METHODS: hPDLSCs were isolated and characterized by their expression of the cell surface markers CD44, CD90, CD105, CD34, and CD45...
March 16, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28295953/three-dimensional-carbon-nanotube-scaffolds-for-long-term-maintenance-and-expansion-of-human-mesenchymal-stem-cells
#5
Gaurav Lalwani, Michael D'Agati, Anu Gopalan, Sunny C Patel, Yahfi Talukdar, Balaji Sitharaman
Expansion of mesenchymal stem cells (MSCs) and maintenance of their self-renewal capacity in vitro requires specialized robust cell culture systems. Conventional approaches using animal derived or artificial matrices and a cocktail of growth factors have limitations such as consistency, scalability, pathogenicity and loss of MSC phenotype. Herein, we report the use of all-carbon 3D single- and multiwalled carbon nanotube scaffolds (SWCNTs and MWCNTs) as artificial matrices for long-term maintenance and expansion of human MSCs...
March 10, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28295277/lipopolysaccharide-can-modify-differentiation-and-immunomodulatory-potential-of-periodontal-ligament-stem-cells-via-erk1-2-signaling
#6
Tamara Kukolj, Drenka Trivanović, Ivana Okić Djordjević, Slavko Mojsilović, Jelena Krstić, Hristina Obradović, Srdja Janković, Juan Francisco Santibanez, Aleksandra Jauković, Diana Bugarski
Lipopolysaccharide (LPS) is a pertinent deleterious factor in oral microenvironment for cells which are carriers of regenerative processes. The aim of this study was to investigate the emerging in vitro effects of LPS (E.coli) on human periodontal ligament stem cell (PDLSC) functions and associated signaling pathways. We demonstrated that LPS did not affect immunophenotype, proliferation, viability and cell cycle of PDLSCs. However, LPS modified lineage commitment of PDLSCs inhibiting osteogenesis by downregulating Runx2, ALP and Ocn mRNA expression, while stimulating chondrogenesis and adipogenesis by upregulating Sox9 and PPARγ mRNA expression...
March 14, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28290822/-immunological-analysis-of-human-atherosclerotic-plaques-in-ex-vivo-culture-system
#7
D A Vorobyova, A M Lebedev, M S Vagida, O I Ivanova, E I Felker, V N Gontarenko, A V Shpektor, L B Margolis, E Yu Vasilieva
THE AIM OF THE STUDY: to analyze the dynamics of lymphocytic composition of human atherosclerotic plaques in ex vivo culture system. MATERIALS AND METHODS: The study included 15 atherosclerotic plaques obtained from patients who underwent carotid endarterectomy. Plaques were cultured as ring-shaped explants on collagen rafts in culture medium of special composition in CO2 incubator according to the previously developed technique. On day 0, and also on the 4th and 19th days of culture we extracted cells from plaque explants and analyzed B- and T-lymphocytic content of the tissue, as well as the percentage of CD16+ natural killer (NK) cells, using multichromatic flow cytometry...
December 2016: Kardiologiia
https://www.readbyqxmd.com/read/28289611/comparison-of-characteristics-of-human-amniotic-membrane-and-human-adipose-tissue-derived-mesenchymal-stem-cells
#8
Khadijeh Dizaji Asl, Hajar Shafaei, Jafar Soleimani Rad, Hojjat Ollah Nozad
BACKGROUND: Mesenchymal stem cells (MSCs) are ideal candidates for treatment of diseases. Amniotic membranes are an inexpensive source of MSCs (AM-MSC) without any donor site morbidity in cell therapy. Adipose tissue derived stem cells (ASCs) are also suitable cells for cell therapy. There is discrepancy in CD271 expression among MSCs from different sources. In this study, the characteristics of AM-MSC and ASCs and CD271 expression were compared. METHODS: Adult adipose tissue samples were obtained from patients undergoing elective surgical procedure, and samples of amniotic membrane were collected immediately after caesarean operation...
January 2017: World Journal of Plastic Surgery
https://www.readbyqxmd.com/read/28289609/the-regenerative-effect-of-bone-marrow-derived-stem-cells-in-spermatogenesis-of-infertile-hamster
#9
Akbar Vahdati, Alireza Fathi, Mehrdokht Hajihoseini, Ghaem Aliborzi, Ebrahim Hosseini
BACKGROUND: Infertility is a serious social problem in advanced nations, with male factor in half of all cases of infertility. This study was conducted to determine the regenerative effect of bone marrow-derived stem cells in spermatogenesis of infertile hamster. METHODS: Twelve adult male hamsters were equally divided into azoospermic and control groups. Busulfan was intraperitoneally used for induction of azoospermia, while the right testis was treated with bone marrow-derived stem cells (10(6) BM-SCs), labeled with sterile trypan blue, 35 days after busulfan injection...
January 2017: World Journal of Plastic Surgery
https://www.readbyqxmd.com/read/28288269/topical-cryopreserved-amniotic-membrane-and-umbilical-cord-eye-drops-promote-re-epithelialization-in-a-murine-corneal-abrasion-model
#10
Sean Tighe, Hamid-Reza Moein, Lorraine Chua, Anny Cheng, Pedram Hamrah, Scheffer C G Tseng
Purpose: To evaluate morselized amniotic membrane and umbilical cord (AMUC) eye drops in promoting corneal re-epithelialization. Methods: Following a 2-mm diameter central epithelial wound in one eye of 48 normal C57BL/6 mouse corneas, 10 μL of saline with (n = 24) or without (n = 24) AMUC was applied three times a day for 6 days. The corneal epithelial defect was measured using 0.1% fluorescein, while corneal epithelial regularity was measured by assessment of a reflected light off the corneal surface...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28286257/grouper-epinephelus-coioides-tcr-signaling-pathway-was-involved-in-response-against-cryptocaryon-irritans-infection
#11
Ze-Xiang Li, Yan-Wei Li, Shun Xu, Yang Xu, Ze-Quan Mo, Xue-Ming Dan, Xiao-Chun Luo
T cell activation is a complicated process accompanying with the activation of T cell receptor (TCR) signaling pathway, which is not well described in teleost fish. The initiation of this pathway depends on the interaction of membrane TCR co-receptors (e.g. CD4/8, CD3 and CD45) and a series of cytoplasmic protein tyrosine kinases (e.g. Lck, Fyn and ZAP70). Cyptocaryon irritans is a ciliate pathogen of marine fish white spot disease causing huge economic lost in marine aquaculture. This parasite can infect fish gill and skin and is considered to be a good pathogen model for fish gill and skin mucosal immunity...
March 7, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28284665/cryopreservation-and-multipotential-characteristics-evaluation-of-a-novel-type-of-mesenchymal-stem-cells-derived-from-small-tailed-han-sheep-fetal-lung-tissue
#12
Caiyun Ma, Changqing Liu, Xiangchen Li, Taofeng Lu, Chunyu Bai, Yanan Fan, Weijun Guan, Yu Guo
Lung mesenchymal stem cells (L-MSCs) characterized by plasticity, reduced relative immune privilege and high anti-fibrosis characteristics play the crucial role in lung tissue regenerative processes. However, up to date, the multi-differentiation potentials and application values of L-MSCs are still uncertain. In the current study, the Small Tailed Han Sheep embryo L-MSCs line from 12 samples, stocking 124 cryogenically-preserved vials, was successfully established by using primary culture and cell cryopreservation techniques...
March 8, 2017: Cryobiology
https://www.readbyqxmd.com/read/28282718/the-potential-of-circulating-tumor-cells-in-personalized-management-of-breast-cancer-a-systematic-review
#13
Fatemeh Khatami, Hamid Reza Aghayan, Maryam Sanaei, Ramin Heshmat, Seyed Mohammad Tavangar, Bagher Larijani
Circulating tumor cells (CTCs) recognition and characterization in the peripheral blood of patients with breast cancer have proven practical and predictive value in different studies. However, the clinical significance of CTCs enumeration and molecular characterization in thepersonalization of breast cancer diagnosis and treatment remains under the debate. A literature search in PubMed, Web of Science and Scopus was performed from October 1990 to June 2016 for studies which evaluating CTCs and its association with clinical and pathological characteristics and medical outcome in the field of breast cancer personalization for both diagnosis and treatment categories...
March 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28281780/fibroblast-growth-factor-1-transfected-adipose-derived-mesenchymal-stem-cells-promote-angiogenic-proliferation
#14
Seyed Javad Hoseini, Hamed Ghazavi, Fatemeh Forouzanfar, Baratali Mashkani, Ahmad Ghorbani, Elahe Mahdipour, Faezeh Ghasemi, Hamid Reza Sadeghnia, Majid Ghayour-Mobarhan
The aim of this study was to investigate, for the first time, the effects of using adipose-derived mesenchymal stem cells (AD-MSCs) transfected with an episomal plasmid encoding fibroblast growth factor 1 (FGF1) (AD-MSCs(FGF1)), in providing the microenvironment required for angiogenic proliferation. The isolated rat AD-MSCs were positive for mesenchymal (CD29 and CD90) and negative for hematopoietic (CD34 and CD45) surface markers. Adipogenic and osteogenic differentiation of the AD-MSCs also occurred in the proper culture media...
March 10, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28281564/standardized-and-flexible-eight-colour-flow-cytometry-panels-harmonized-between-different-laboratories-to-study-human-nk-cell-phenotype-and-function
#15
John P Veluchamy, María Delso-Vallejo, Nina Kok, Fenna Bohme, Ruth Seggewiss-Bernhardt, Hans J van der Vliet, Tanja D de Gruijl, Volker Huppert, Jan Spanholtz
Advancements in multi-colour fluorescence activated cell sorting (FACS) panel warrant harmonized procedures to obtain comparable data between various laboratories. The intensifying clinical exploration of Natural Killer (NK) cell-based immunotherapy demands standardized and harmonized NK cell FACS panels and acquisition protocols. Eight colour FACS panels were designed to study human NK cell phenotype and function within peripheral blood mononuclear cells (PBMC). The panels were designed around fixed backbone markers and channels, covering antigens for non-NK lineage exclusion (CD3, TCRγδ, CD19, CD14, SYTOX(®) Blue) and NK cell selection (CD45, CD56, CD16), complemented with variable drop-in markers/channels to study NK cell phenotype (NKG2A, NKG2C, NKG2D and KIR2D) or NK cell function and activation (CD25, NKp44 and CD107a)...
March 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28279220/short-course-rapamycin-treatment-enables-engraftment-of-immunogenic-gene-engineered-bone-marrow-under-low-dose-irradiation-to-permit-long-term-immunological-tolerance
#16
Kunal H Bhatt, Rajeev Rudraraju, Jeremy F Brooks, Ji-Won Jung, Ryan Galea, James W Wells, Raymond J Steptoe
BACKGROUND: Application of genetically modified hematopoietic stem cells is increasingly mooted as a clinically relevant approach to protein replacement therapy, immune tolerance induction or conditions where both outcomes may be helpful. Hematopoietic stem and progenitor cell (HSPC)-mediated gene therapy often requires highly toxic pretransfer recipient conditioning to provide a 'niche' so that transferred HSPCs can engraft effectively and to prevent immune rejection of neoantigen-expressing engineered HSPCs...
March 9, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28277610/the-notch-ligand-jagged1-regulates-the-osteoblastic-lineage-by-maintaining-the-osteoprogenitor-pool
#17
Rialnat A Lawal, Xichao Zhou, Kaylind Batey, Corey M Hoffman, Mary A Georger, Freddy Radtke, Matthew J Hilton, Lianping Xing, Benjamin J Frisch, Laura M Calvi
Notch signaling is critical for osteoblastic differentiation; however, the specific contribution of individual Notch ligands is unknown. Parathyroid hormone (PTH) regulates the Notch ligand Jagged1 in osteoblastic cells. To determine if osteolineage Jagged1 contributes to bone homeostasis, selective deletion of Jagged1 in osteolineage cells was achieved through the presence of Prx1 promoter-driven Cre recombinase expression, targeting mesenchymal stem cells (MSCs) and their progeny (PJag1 mice). PJag1 mice were viable and fertile and did not exhibit any skeletal abnormalities at 2 weeks of age...
March 9, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28274569/predictive-value-of-circulating-tumor-cells-ctcs-captured-by-microfluidic-device-in-patients-with-epithelial-ovarian-cancer
#18
Maria Lee, Eun Jae Kim, Youngnam Cho, Sunshin Kim, Hyun Hoon Chung, Noh Hyun Park, Yong-Sang Song
OBJECTIVE: To test an electrically conductive chip, incorporating a nanoroughened microfluidic platform for the capture of circulating tumor cells (CTCs), and assess its clinical merit in instances of epithelial ovarian cancer (EOC). METHODS: A total of 54 patients with EOC recruited between August 2014 and May 2015 were enrolled in this prospective study. CTCs in peripheral blood were detected in advance of primary tumor resection and before initiating adjuvant chemotherapy for recurrent disease...
March 5, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28274315/-vegf-overespression-promotes-the-proliferation-and-differentiation-of-human-adipose-derived-stem-cells
#19
Youbai Chen, Qixu Zhang, E Butler Charles, Yewen Wu, Liping Zhang, Jiangling Dong, Yan Han
Objective To investigate the effect of vascular endothelial growth factor (VEGF) overexpression on the phenotype, proliferation and multilineage differentiation ability of human adipose-derived stem cells (hADSCs). Methods Passage-2 hADSCs were transfected with pIRES2-EGFP-VEGF plasmid using DOTAP liposomal technique, whereas hADSCs in control group were transfected in absence of plasmid. The success of transfection was confirmed by immunofluorescent cytochemistry. Phenotype differences between the two groups were detected using flow cytometry...
March 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28271994/nkx2-5-marks-angioblasts-that-contribute-to-hemogenic-endothelium-of-the-endocardium-and-dorsal-aorta
#20
Lyad Zamir, Reena Singh, Elisha Nathan, Ralph Patrick, Oren Yifa, Yfat Yahalom-Ronen, Alaa A Arraf, Thomas M Schultheiss, Shengbao Suo, Jing-Dong Jackie Han, Guangdun Peng, Naihe Jing, Yuliang Wang, Nathan Palpant, Patrick Pl Tam, Richard P Harvey, Eldad Tzahor
Novel regenerative therapies may stem from deeper understanding of the mechanisms governing cardiovascular lineage diversification. Using enhancer mapping and live imaging in avian embryos, and genetic lineage tracing in mice, we investigated the spatio-temporal dynamics of cardiovascular progenitor populations. We show that expression of the cardiac transcription factor Nkx2.5 marks a mesodermal population outside of the cardiac crescent in the extraembryonic and lateral plate mesoderm, with characteristics of hemogenic angioblasts...
March 8, 2017: ELife
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