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https://www.readbyqxmd.com/read/28819846/filter-adapted-fluorescent-in-situ-hybridization-fa-fish-for-filtration-enriched-circulating-tumor-cells
#1
Marianne Oulhen, Emma Pailler, Vincent Faugeroux, Françoise Farace
Circulating tumor cells (CTCs) may represent an easily accessible source of tumor material to assess genetic aberrations such as gene-rearrangements or gene-amplifications and screen cancer patients eligible for targeted therapies. As the number of CTCs is a critical parameter to identify such biomarkers, we developed fluorescent in situ hybridization (FISH) for CTCs enriched on filters (filter-adapted-FISH, FA-FISH). Here, we describe the FA-FISH protocol, the combination of immunofluorescent staining (DAPI/CD45) and FA-FISH techniques, as well as the semi-automated microscopy method that we developed to improve the feasibility and reliability of FISH analyses in filtration-enriched CTC...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28816507/arthroscopic-harvest-of-adipose-derived-mesenchymal-stem-cells-from-the-infrapatellar-fat-pad
#2
Jason L Dragoo, Wenteh Chang
BACKGROUND: The successful isolation of adipose-derived mesenchymal stem cells (ADSCs) from the arthroscopically harvested infrapatellar fat pad (IFP) would provide orthopaedic surgeons with an autologous solution for regenerative procedures. PURPOSE: To demonstrate the quantity and viability of the mesenchymal stem cell population arthroscopically harvested from the IFP as well as the surrounding synovium. STUDY DESIGN: Descriptive laboratory study...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28815839/circulating-tumor-cells-in-patients-with-head-and-neck-squamous-cell-carcinoma-feasibility-of-detection-and-quantitation
#3
Tomoyuki Kawada, Hideyuki Takahashi, Koichi Sakakura, Shota Ida, Ikko Mito, Minoru Toyoda, Kazuaki Chikamatsu
BACKGROUND: The purpose of this study was to present our findings that because circulating tumor cells (CTCs) exist in extremely low numbers, their detection and quantification are challenging. METHODS: Peripheral blood samples were collected from 32 patients with head and neck squamous cell carcinoma (HNSCC), and were subjected to the CellSieve Microfiltration Assay using a low-pressure filtration system. The CTCs captured by the filter were stained with an antibody cocktail (anti-cytokeratin (CK) 8, 18, and 19, anti-epithelial cell adhesion molecule (EpCAM), and anti-CD45 antibodies)...
August 17, 2017: Head & Neck
https://www.readbyqxmd.com/read/28814957/induced-pluripotent-stem-cell-for-the-study-and-treatment-of-sickle-cell-anemia
#4
Luiza Cunha Junqueira Reis, Virgínia Picanço-Castro, Bárbara Cristina Martins Fernandes Paes, Olívia Ambrozini Pereira, Isabela Gerdes Gyuricza, Fabiano Tófoli de Araújo, Mariana Morato-Marques, Lílian Figueiredo Moreira, Everton de Brito Oliveira Costa, Tálita Pollyanna Moreira Dos Santos, Dimas Tadeu Covas, Lygia da Veiga Pereira Carramaschi, Elisa Maria de Sousa Russo
Sickle cell anemia (SCA) is a monogenic disease of high mortality, affecting millions of people worldwide. There is no broad, effective, and safe definitive treatment for SCA, so the palliative treatments are the most used. The establishment of an in vitro model allows better understanding of how the disease occurs, besides allowing the development of more effective tests and treatments. In this context, iPSC technology is a powerful tool for basic research and disease modeling, and a promise for finding and screening more effective and safe drugs, besides the possibility of use in regenerative medicine...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28807337/evaluation-of-cd43-expression-in-non-hematopoietic-malignancies
#5
Bjorn H Batdorf, Steven H Kroft, Paul R Hosking, Alexandra M Harrington, Alexander C Mackinnon, Horatiu Olteanu
OBJECTIVES: CD43 is normally expressed only on the surface of leukocytes, and is considered a sensitive and specific marker for hematologic malignancies. As such, it may have diagnostic utility in confirming hematolymphoid lineage in cases that are negative for CD45. Aberrant CD43 expression has been described in non-hematopoietic tumors, although literature data on this topic is variable and sometimes contradictory. To clarify and expand on existing literature findings, we evaluated CD43 expression by immunohistochemistry (IHC) in a large cohort (307) of non-hematopoietic neoplasms, including poorly differentiated malignancies...
August 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28806729/erk2-and-jnk1-contribute-to-tnf-%C3%AE-induced-il-8-expression-in-synovial-fibroblasts
#6
Shinichi Namba, Rei Nakano, Taku Kitanaka, Nanako Kitanaka, Tomohiro Nakayama, Hiroshi Sugiya
Tumor necrosis factor α (TNF-α) induces the expression and secretion of interleukin 8 (IL-8), which contributes to synovitis in rheumatoid arthritis (RA). To elucidate the mechanism of the onset of RA, we used synovial fibroblasts without autoimmune inflammatory diseases and investigated MAPK signaling pathways in TNF-α-induced IL-8 expression. Synovial fibroblasts isolated from healthy dogs were characterized by flow cytometry, which were positive for the fibroblast markers CD29, CD44, and CD90 but negative for the hematopoietic cell markers CD14, CD34, CD45, and HLA-DR...
2017: PloS One
https://www.readbyqxmd.com/read/28806641/acute-ethanol-administration-results-in-a-protective-cytokine-and-neuroinflammatory-profile-in-traumatic-brain-injury
#7
Akila Chandrasekar, Florian Olde Heuvel, Annette Palmer, Birgit Linkus, Albert C Ludolph, Tobias M Boeckers, Borna Relja, Markus Huber-Lang, Francesco Roselli
Ethanol intoxication is a common comorbidity in traumatic brain injury. To date, the effect of ethanol on TBI pathogenic cascades and resulting outcomes remains debated. A closed blunt weight-drop murine TBI model has been implemented to investigate behavioral (by sensorimotor and neurological tests), and neuro-immunological (by tissue cytokine arrays and immuno-histology) effects of ethanol intoxication on TBI. The effect of the occurrence of traumatic intracerebral hemorrhage was also studied. The results indicate that ethanol pretreatment results in a faster and better recovery after TBI with reduced infiltration of leukocytes and reduced microglia activation...
August 11, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28806403/th17-cells-are-associated-with-protection-from-ventilator-associated-pneumonia
#8
Marika Orlov, Victoria Dmyterko, Mark M Wurfel, Carmen Mikacenic
BACKGROUND: CD4+ T-helper 17 (Th17) cells and Interleukin (IL)-17A play an important role in clearing pathogens in mouse models of pneumonia. We hypothesized that numbers of Th17 cells and levels of IL-17A are associated with risk for nosocomial pneumonia in humans. METHODS: We collected bronchoalveolar lavage (BAL) fluid from mechanically ventilated (n = 25) patients undergoing quantitative bacterial culture to evaluate for ventilator associated pneumonia (VAP)...
2017: PloS One
https://www.readbyqxmd.com/read/28806276/circulating-progenitor-cell-response-to-exercise-in-wheelchair-racing-athletes
#9
Grace M Niemiro, Thomas Edwards, J P Barfield, Joseph W Beals, Elizabeth M Broad, Robert W Motl, Nicholas A Burd, Lara A Pilutti, Michael De Lisio
INTRODUCTION: Circulating progenitor cells (CPCs) are a heterogeneous population of stem/progenitor cells in peripheral blood that participate in tissue repair. CPC mobilization has been well characterized in able-bodied persons, but has not been previously investigated in wheelchair racing athletes. The purpose of this study was to characterize CPC and CPC sub-population mobilization in elite wheelchair racing athletes in response to acute, upper-extremity aerobic exercise to determine if CPC responses are similar to ambulatory populations...
August 11, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28801374/myeloid-sarcoma-in-a-patient-with-myelodysplastic-syndrome-associated-with-del-5q-case-report-and-literature-review
#10
Josh A Showalter, Nidhi Tandon, Bihong Zhao, Guilin Tang, Nghia D Nguyen, L Jeffrey Medeiros
OBJECTIVE: Myeloid sarcoma (MS) is defined in the World Health Organization classification as a tumor mass consisting of myeloblasts with or without maturation and involving any anatomic site other than the bone marrow. We present a case of MS developing in a patient with 5q- myelodysplastic syndrome (MDS) and review the relevant literature. METHODS: A 77-year-old woman with recent diagnosis of MDS associated with del(5q) presented with symptoms and signs attributable to a mass involving the T8 vertebra...
August 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/28800128/adult-cardiac-stem-cells-are-multipotent-and-robustly-myogenic-c-kit-expression-is-necessary-but-not-sufficient-for-their-identification
#11
Carla Vicinanza, Iolanda Aquila, Mariangela Scalise, Francesca Cristiano, Fabiola Marino, Eleonora Cianflone, Teresa Mancuso, Pina Marotta, Walter Sacco, Fiona C Lewis, Liam Couch, Victoria Shone, Giulia Gritti, Annalaura Torella, Andrew J Smith, Cesare Mn Terracciano, Domenico Britti, Pierangelo Veltri, Ciro Indolfi, Bernardo Nadal-Ginard, Georgina M Ellison-Hughes, Daniele Torella
Multipotent adult resident cardiac stem cells (CSCs) were first identified by the expression of c-kit, the stem cell factor receptor. However, in the adult myocardium c-kit alone cannot distinguish CSCs from other c-kit-expressing (c-kit(pos)) cells. The adult heart indeed contains a heterogeneous mixture of c-kit(pos) cells, mainly composed of mast and endothelial/progenitor cells. This heterogeneity of cardiac c-kit(pos) cells has generated confusion and controversy about the existence and role of CSCs in the adult heart...
August 11, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28798254/oxygen-dependent-changes-in-lung-development-do-not-affect-epithelial-infection-with-influenza-a-virus
#12
William Domm, Min Yee, Ravi S Misra, Robert Gelein, Aitor Nogales, Luis Martinez Sobrido, Michael A O'Reilly
Infants born prematurely often require supplemental oxygen that contributes to aberrant lung development and increased pulmonary morbidity following a respiratory viral infection. We have been using a mouse model to understand how early-life hyperoxia affects the adult lung response to influenza A virus (IAV) infection. Prior studies showed how neonatal hyperoxia (100% oxygen) increased sensitivity of adult mice to infection with influenza A virus (IAV (A/Hong Kong/X31) H3N2) as defined by persistent inflammation, pulmonary fibrosis, and mortality...
August 10, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28791835/ifn-%C3%AE-induces-senescence-like-characteristics-in-mouse-bone-marrow-mesenchymal-stem-cells
#13
Zhou Xin Yang, Gen Xiang Mao, Jing Zhang, Xiao Lin Wen, Bing Bing Jia, Yi Zhong Bao, Xiao Ling Lv, Ya Zhen Wang, Guo Fu Wang
BACKGROUND: Mesenchymal stem cells (MSC) are considered promising in tissue repair and regeneration medicine due to their proliferation and differentiation ability. Many properties of MSC are affected by cytokines, and IFN-γ has been shown to regulate MSC in many aspects. Senescence affects the proliferation, differentiation and cytokine secretion of MSC. OBJECTIVES: To investigate the effects of IFN-γ on the senescence-associated properties of MSC. MATERIAL AND METHODS: The MSC used in our study were isolated from the bone marrow (BM) of mice...
March 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28782583/age-related-remodeling-of-the-jak-stat-socs-signaling-pathway-and-associated-myocardial-changes-from-histological-to-molecular-level
#14
Basma Emad Aboulhoda
BACKGROUND: The cellular and molecular mechanisms implicated in age-associated changes in myocardial structure are of paramount importance since they cause profound alterations in the functional response and represent targets for alleviating age-related pathologies. One of these mechanisms is the JAK/STAT/SOCS signaling pathway. AIM OF THE STUDY: The present study is designed to elucidate age-dependent changes of the myocardium to provide morphological basis displaying the pathogenesis of myocardial hypertrophy, fibrosis and inflammation with aging...
August 4, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28782281/systemic-administration-of-bone-marrow-derived-cells-leads-to-better-uterine-engraftment-than-use-of-uterine-derived-cells-or-local-injection
#15
Ying Liu, Reshef Tal, Nicola Pluchino, Ramanaiah Mamillapalli, Hugh S Taylor
Stem cells are recruited to the uterus where they differentiate into endometrial cells and have been suggested as potential therapy for uterine injury such as Asherman's syndrome. However, it is unknown whether local intrauterine injection may result in better stem cell engraftment of the uterus compared with systemic administration, and whether uterine-derived cells (UDCs) may confer an advantage over BM-derived cells (BMDCs). Mice underwent local injury to a single uterine horn. Green fluorescent protein (GFP)-expressing BMDCs, UDCs or saline (control) were injected either intravenously or locally (uterine lumen) into wild-type recipients...
August 7, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28772243/daphnoretin-modulates-differentiation-and-maturation-of-human-dendritic-cells-through-down-regulation-of-c-jun-n-terminal-kinase
#16
Chien-An Chen, Chien-Kuo Liu, Ming-Ling Hsu, Chih-Wen Chi, Chun-Chuan Ko, Jian-Syun Chen, Cheng-Ta Lai, Hen-Hong Chang, Tzung-Yan Lee, Yuen-Liang Lai, Yu-Jen Chen
Daphnoretin, an active constituent of Wikstroemia indica C.A. Meys, has been shown possessing anti-cancer activity. In this study, we examined the effect of daphnoretin on differentiation and maturation of human myeloid dendritic cells (DCs). After treatment with daphnoretin (0, 1.1, 3.3, 10 and 30μM) to initiate monocytes, the recovery rate of DCs was reduced in a dose-dependent manner. The mature DCs differentiated in the presence of daphnoretin had fewer and shorter dendrites. Daphnoretin modulated DCs differentiation and maturation in terms of lower expression of CD1a, CD40, CD83, DC-SIGN, and HLA-DR...
July 31, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28771195/scar-prevention-and-enhanced-wound-healing-induced-by-polydeoxyribonucleotide-in-a-rat-incisional-wound-healing-model
#17
Woonhyeok Jeong, Chae Eun Yang, Tai Suk Roh, Jun Hyung Kim, Ju Hee Lee, Won Jai Lee
High-mobility group box protein-1 (HMGB-1) plays a central role in the inflammatory network, and uncontrolled chronic inflammation can lead to excessive scarring. The aim of this study was to evaluate the anti-inflammatory effects of polydeoxyribonucleotide (PDRN) on scar formation. Sprague-Dawley rats (n = 30) underwent dorsal excision of the skin, followed by skin repair. PDRN (8 mg/kg) was administered via intraperitoneal injection for three (PDRN-3 group, n = 8) or seven (PDRN-7 group, n = 8) days, and HMGB-1 was administered via intradermal injection in addition to PDRN treatment for three days (PDRN-3+HMGB-1 group; n = 6)...
August 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28769980/galectin-3-knockdown-impairs-survival-migration-and-immunomodulatory-actions-of-mesenchymal-stromal-cells-in-a-mouse-model-of-chagas-disease-cardiomyopathy
#18
Bruno Solano de Freitas Souza, Kátia Nunes da Silva, Daniela Nascimento Silva, Vinícius Pinto Costa Rocha, Bruno Diaz Paredes, Carine Machado Azevedo, Carolina Kymie Nonaka, Gisele Batista Carvalho, Juliana Fraga Vasconcelos, Ricardo Ribeiro Dos Santos, Milena Botelho Pereira Soares
Therapies based on transplantation of mesenchymal stromal cells (MSC) hold promise for the management of inflammatory disorders. In chronic Chagas disease cardiomyopathy (CCC), caused by chronic infection with Trypanosoma cruzi, the exacerbated immune response plays a critical pathophysiological role and can be modulated by MSC. Here, we investigated the role of galectin-3 (Gal-3), a beta-galactoside-binding lectin with several actions on immune responses and repair process, on the immunomodulatory potential of MSC...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28768721/the-glucocorticoid-receptor-in-monocyte-derived-macrophages-is-critical-for-cardiac-infarct-repair-and-remodeling
#19
Paolo Galuppo, Sabine Vettorazzi, Julian Hövelmann, Claus-Jürgen Scholz, Jan Peter Tuckermann, Johann Bauersachs, Daniela Fraccarollo
Cell- and tissue-specific actions of glucocorticoids are mediated by the glucocorticoid receptor. Here, we demonstrate that the glucocorticoid receptor (GR) in macrophages is essential for cardiac healing after myocardial infarction. Compared with GR(flox) (wild-type controls), GR(LysMCre) mice that lacked GR in myeloid cells showed increased acute mortality as a result of cardiac rupture. Seven days after left coronary artery ligation, GR(LysMCre) mice exhibited worse cardiac function and adverse remodeling associated with impaired scar formation and angiogenic response to ischemic injury...
August 2, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28766061/lysophosphatidic-acid-enhances-human-umbilical-cord-mesenchymal-stem-cell-viability-without-differentiation-via-lpa-receptor-mediating-manner
#20
Narengerile Li, Ya-Li Yan, Sachaofu Fu, Rui-Juan Li, Peng-Fei Zhao, Xi-Yuan Xu, Jing-Ping Yang, Alatangaole Damirin
Human umbilical cord mesenchymal stem cells (hUC-MSCs) are potential stromal cells which are regarded as the most feasible stem cell group in cell therapy. The maintenance of cell survival without differentiation is important in cell transplantation and stem cell therapy. However, negative factors exist in cell transplantation. Lysophosphatidic acid (LPA) is a non-antigenic small molecule phospholipid which induced several fundamental cellular responses, such as cell proliferation, apoptosis and migration. In this study we aimed to explore the effects of LPA on the survival and differentiation of MSCs and its availability in cell therapy...
August 1, 2017: Apoptosis: An International Journal on Programmed Cell Death
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