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https://www.readbyqxmd.com/read/29154732/cd49f-mammary-epithelial-cells-decrease-in-milk-from-dairy-cows-stressed-by-overstocking-during-the-dry-period
#1
Mario Baratta, Silvia Miretti, Paolo Accornero, Giovanna Galeati, Andrea Formigoni, Gianfranco Gabai, Daniele Nucera, Eugenio Martignani
The work reported in this Research Communication describes the modification in epithelial cell populations during the first and the last month of milking in Holstein Friesian cows that have undergone different management during the dry period, and we report the differential expression of CD49f+ and cytokeratin18+ cell subpopulations. Twenty six cows were randomly divided into 2 balanced groups that were housed at stocking density of either 11 m2 (CTR) or 5 m2 from 21 ± 3 d before the expected calving until calving...
November 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/29153872/malignant-lymphoma-arising-in-cardiac-myxoma-presenting-with-peripheral-arterial-emboli
#2
Cheol Keun Park, Yoon Ah Cho, Moonsik Kim, Hyo Sup Shim
Composite tumors of cardiac myxoma and malignant lymphoma are extremely rare, with 11 of such cases reported in the literature. A 44-year-old man presented to us with abrupt right lower leg pain. A computed tomography angiogram revealed segmental obstruction of the right common femoral artery, and embolectomy was performed. The embolectomy specimen contained several clusters of degenerated round/oval atypical cells in the fibrinous or myxoid background. Immunohistochemical examination revealed that these atypical cells were negative for cytokeratin and non-specifically expressed CD45...
October 14, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/29152114/comparison-of-isolation-platforms-for-detection-of-circulating-renal-cell-carcinoma-cells
#3
Yvonne Maertens, Verena Humberg, Franziska Erlmeier, Sandra Steffens, Julie Steinestel, Martin Bögemann, Andres Jan Schrader, Christof Bernemann
Background: Analysis of circulating tumor cells (CTCs) has progressed in several tumor entities. However, little is known about CTCs in clear cell renal cell carcinoma (ccRCC) patients. Aim of our studies was to build a stable in vitro fundament for isolation of CTCs in ccRCC. Methods: We compared the analytical performance of different CTC isolation methods with regard to yield and purity: EpCAM based enrichment, leukocyte depletion and size based enrichment. EpCAM and cytokeratin 8 (KRT8) as biomarker for CTCs expression were evaluated in ccRCC cell lines as well as clinical samples...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29151279/detection-of-ctcs-in-cervical-cancer-using-a-conditionally-replicative-adenovirus-targeting-telomerase-positive-cells
#4
Masahiro Takakura, Takeo Matsumoto, Mitsuhiro Nakamura, Yasunari Mizumoto, Subaru Myojyo, Rena Yamazaki, Jyunpei Iwadare, Yukiko Bono, Shunsuke Orisaka, Takeshi Obata, Takashi Izuka, Kyosuke Kagami, Kentaro Nakayama, Hideki Hayakawa, Fuminori Sakurai, Hiroyuki Mizuguchi, Yasuo Urata, Toshiyoshi Fujiwara, Satoru Kyo, Toshiyuki Sasagawa, Hiroshi Fujiwara
Circulating tumor cells (CTCs) are newly discovered biomarkers of cancers. Although many systems detect CTCs, a gold standard has not yet been established. We analyzed CTCs in uterine cervical cancer patients using an advanced version of conditionally replicative adenovirus targeting telomerase-positive cells, which was enabled to infect coxsackievirus-adenovirus receptor-negative cells and to reduce false-positive signals in myeloid cells. Blood samples from cervical cancer patients were hemolyzed and infected with the virus and then labeled with fluorescent anti-CD45 and anti-pan cytokeratin antibodies...
November 19, 2017: Cancer Science
https://www.readbyqxmd.com/read/29150810/liver-fibrosis-alleviation-after-co-transplantation-of-hematopoietic-stem-cells-with-mesenchymal-stem-cells-in-patients-with-thalassemia-major
#5
Ardeshir Ghavamzadeh, Masoud Sotoudeh, Amir Pejman Hashemi Taheri, Kamran Alimoghaddam, Hossein Pashaiefar, Mahdi Jalili, Farhad Shahi, Mohammad Jahani, Marjan Yaghmaie
The aims of this study are to determine the replacement rate of damaged hepatocytes by donor-derived cells in sex-mismatched recipient patients with thalassemia major and to determine whether co-transplantation of mesenchymal stem cells and hematopoietic stem cells (HSCs) can alleviate liver fibrosis. Ten sex-mismatched donor-recipient pairs who received co-transplantation of HSCs with mesenchymal stem cells were included in our study. Liver biopsy was performed before transplantation. Two other liver biopsies were performed between 2 and 5 years after transplantation...
November 17, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/29147621/in-depth-immunophenotyping-of-patients-with-glioblastoma-multiforme-impact-of-steroid-treatment
#6
Guranda Chitadze, Charlotte Flüh, Elgar Susanne Quabius, Sandra Freitag-Wolf, Christian Peters, Marcus Lettau, Jaydeep Bhat, Daniela Wesch, Hans-Heinrich Oberg, Stefanie Luecke, Ottmar Janssen, Michael Synowitz, Janka Held-Feindt, Dieter Kabelitz
Despite aggressive treatment regimens based on surgery and radiochemotherapy, the prognosis of patients with grade IV glioblastoma multiforme (GBM) remains extremely poor, calling for alternative options such as immunotherapy. Immunological mechanisms including the Natural Killer Group 2 member D (NKG2D) receptor-ligand system play an important role in tumor immune surveillance and targeting the NKG2D system might be beneficial. However, before considering any kind of immunotherapy, a precise characterization of the immune system is important, particularly in GBM patients where conventional therapies with impact on the immune system are frequently co-administered...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29146749/statins-promote-cardiac-infarct-healing-by-modulating-endothelial-barrier-function-revealed-by-contrast-enhanced-magnetic-resonance-imaging
#7
Geert J Leenders, Mirjam B Smeets, Maaike van den Boomen, Monique Berben, Miranda Nabben, Dianne van Strijp, Gustav J Strijkers, Jeanine J Prompers, Fatih Arslan, Klaas Nicolay, Katrien Vandoorne
OBJECTIVE: The endothelium has a crucial role in wound healing, acting as a barrier to control transit of leukocytes. Endothelial barrier function is impaired in atherosclerosis preceding myocardial infarction (MI). Besides lowering lipids, statins modulate endothelial function. Here, we noninvasively tested whether statins affect permeability at the inflammatory (day 3) and the reparative (day 7) phase of infarct healing post-MI using contrast-enhanced cardiac magnetic resonance imaging...
November 16, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29146181/proximity-labeling-of-cis-ligands-of-cd22-siglec-2-reveals-stepwise-%C3%AE-2-6-sialic-acid-dependent-and-independent-interactions
#8
Amin Alborzian Deh Sheikh, Chizuru Akatsu, Akihiro Imamura, Hajjaj H M Abdu-Allah, Hiromu Takematsu, Hiromune Ando, Hideharu Ishida, Takeshi Tsubata
Lectins expressed on the cell surface are often bound and regulated by the membrane molecules containing the glycan ligands on the same cell (cis-ligands). However, molecular nature and function of cis-ligands are generally poorly understood partly because of weak interaction between lectins and glycan ligands. Cis-ligands are most extensively studied in CD22 (also known as Siglec-2), an inhibitory B lymphocyte receptor specifically recognizing α2,6 sialic acids. CD22, CD45 and IgM are suggested to be ligands of CD22...
November 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29144463/a-single-cell-survey-of-the-small-intestinal-epithelium
#9
Adam L Haber, Moshe Biton, Noga Rogel, Rebecca H Herbst, Karthik Shekhar, Christopher Smillie, Grace Burgin, Toni M Delorey, Michael R Howitt, Yarden Katz, Itay Tirosh, Semir Beyaz, Danielle Dionne, Mei Zhang, Raktima Raychowdhury, Wendy S Garrett, Orit Rozenblatt-Rosen, Hai Ning Shi, Omer Yilmaz, Ramnik J Xavier, Aviv Regev
Intestinal epithelial cells absorb nutrients, respond to microbes, function as a barrier and help to coordinate immune responses. Here we report profiling of 53,193 individual epithelial cells from the small intestine and organoids of mice, which enabled the identification and characterization of previously unknown subtypes of intestinal epithelial cell and their gene signatures. We found unexpected diversity in hormone-secreting enteroendocrine cells and constructed the taxonomy of newly identified subtypes, and distinguished between two subtypes of tuft cell, one of which expresses the epithelial cytokine Tslp and the pan-immune marker CD45, which was not previously associated with non-haematopoietic cells...
November 16, 2017: Nature
https://www.readbyqxmd.com/read/29140564/%C3%AE-catenin-and-il-1%C3%AE-dependent-cxcl10-production-drives-progression-of-disease-in-a-mouse-model-of-congenital-hepatic-fibrosis
#10
Eleanna Kaffe, Romina Fiorotto, Francesca Pellegrino, Valeria Mariotti, Mariangela Amenduni, Massimiliano Cadamuro, Luca Fabris, Mario Strazzabosco, Carlo Spirli
Congenital Hepatic Fibrosis (CHF), a genetic disease caused by mutations in the PKHD1 gene, encoding for the protein fibrocystin (FPC), is characterized by biliary dysgenesis, progressive portal fibrosis, and by a PKA-mediated activating phosphorylation of β-Catenin at Ser675. Biliary structures of Pkhd1(del4/del4) mice, a mouse model of CHF, secrete CXCL10 a chemokine able to recruit macrophages. The aim of this study is to clarify whether CXCL10 plays a pathogenetic role in disease progression in CHF/CD and to understand the mechanisms leading to increased CXCL10 secretion...
November 15, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29139170/single-cell-resolution-of-human-hemato-endothelial-cells-defines-transcriptional-signatures-of-hemogenic-endothelium
#11
Mathew G Angelos, Juan E Abrahante, Robert H Blum, Dan S Kaufman
Endothelial-to-hematopoietic transition (EHT) is an important stage in definitive hematopoietic development. However, the genetic mechanisms underlying human EHT remains poorly characterized. We performed single cell RNA-seq using 55 hemogenic endothelial cells (HE: CD31(+) CD144(+) CD41(-) CD43(-) CD45(-) CD73(-) RUNX1c(+) ), 47 vascular endothelial cells without hematopoietic potential (non-HE: CD31(+) CD144(+) CD41(-) CD43(-) CD45(-) CD73(-) RUNX1c(-) ), and 35 hematopoietic progenitor cells (HP: CD34(+) CD43(+) RUNX1c(+) ) derived from human embryonic stem cells (hESCs)...
November 15, 2017: Stem Cells
https://www.readbyqxmd.com/read/29137886/diesel-exhaust-inhalation-exposure-induces-pulmonary-arterial-hypertension-in-mice
#12
Jing Liu, Xiaoqing Ye, Dapeng Ji, Xiaofei Zhou, Cong Qiu, Weiping Liu, Luyang Yu
Diesel exhaust (DE) is one of the main sources of urban air pollution. An increasing number of evidence showed the association of air pollution with cardiovascular diseases. Pulmonary arterial hypertension (PAH) is one of the most disastrous vascular diseases, which results in right ventricular failure and death. However, the relationship of DE inhalation exposure with PAH is still unknown. In this study, male adult mice were exposed by inhalation to filtered ambient air (negative control), 10% O2 hypoxia (PAH-phenotype positive control), 350 μg/m(3) particulate matter whole DE, or the combination of DE and hypoxic condition...
November 11, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29137845/enumeration-of-bone-marrow-plasmacytoid-dendritic-cells-by-multiparameter-flow-cytometry-as-a-prognostic-marker-following-allogeneic-hematopoietic-stem-cell-transplantation
#13
Ruijun Jeanna Su, Ralph Green, Mingyi Chen
Plasmacytoid dendritic cells (pDCs) promote tolerance in solid organ transplants and hematopoietic stem cell transplantation (HSCT). pDCs originate from CD34(+) hematopoietic progenitors. Following allogeneic hematopoietic stem cell transplant (allo-HSCT), pDC reconstitution in the BM and PB gradually attain levels similar to those in healthy individuals. We have investigated the recovery of pDC following allo-HSCT as a means to predict successful marrow engraftment. We retrospectively studied immune reconstitution of pDC in the BM of 48 patients following allo-HSCT for initial diagnoses of leukemia or other malignancies...
October 31, 2017: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/29137359/granulysin-expressed-in-a-humanized-mouse-model-induces-apoptotic-cell-death-and-suppresses-tumorigenicity
#14
Ya-Wen Hsiao, Tsung-Ching Lai, Yu-Hsiang Lin, Chia-Yi Su, Jih-Jong Lee, Albert Taiching Liao, Yuan-Feng Lin, Shu-Chen Hsieh, Alexander T H Wu, Michael Hsiao
Granulysin (GNLY) is a cytolytic and proinflammatory protein expressed in activated human cytotoxic T lymphocytes (CTLs) and natural killer (NK) cells. Conventional mouse models cannot adequately address the triggering mechanism and immunopathological pathways in GNLY-associated diseases due to lack of the GNLY gene in the mouse genome. Therefore, we generated a humanized immune system (HIS) mouse model by transplanting human umbilical cord blood mononuclear cells into NOD.Cg-Prkdc(scid) Il2rg(tm1Wjl) /SzJ (NSG) mice after sublethally irradiation...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136520/characterization-of-myeloid-cell-populations-in-human-testes-collected-after-sex-reassignment-surgery
#15
Rosalie Ponte, Franck P Dupuy, Fadi Brimo, Vikram Mehraj, Pierre Brassard, Maud Belanger, Ekaterina Yurchenko, Mohammad-Ali Jenabian, Nicole F Bernard, Jean-Pierre Routy
The testis has been described in animal models as a site of immune privilege, which protects spermatids against tissue damage during inflammation. Myeloid cells, including macrophages and dendritic cells (DC), are defined as key players in the testicular immune privilege in animal models. However, their distribution and frequency in human testis remain poorly described. To overcome the challenges related to tissue sampling, we obtained testicular tissue from men under hormonal therapy who elected to have sex reassignment surgery (SRS)...
October 14, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/29132961/title-experimental-asthma-persists-in-il33-receptor-knockout-mice-due-to-the-emergence-of-a-tslp-driven-il9-and-il13-ilc2-subpopulations
#16
Mukesh Verma, Sucai Liu, Lidia Michalec, Anand Sripada, Magdalena M Gorska, Rafeul Alam
BACKGROUND: IL33 plays an important role in development of experimental asthma. OBJECTIVE: To study the role of the IL33 receptor (ST2) in persistence of asthma in a mouse model. METHODS: We studied allergen-induced experimental asthma in ST2 knockout (KO) and wild-type control mice. We measured airway hyperresponsiveness (AHR) by flexivent, inflammatory indices by ELISA, histology and real-time PCR, and ILC2s in lung single cell preparations by flow cytometry...
November 10, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29130961/endothelial-cell-derived-microparticles-from-patients-with-obstructive-sleep-apnea-hypoxia-syndrome-and-coronary-artery-disease-increase-aortic-endothelial-cell-dysfunction
#17
Lixin Jia, Jingyao Fan, Wei Cui, Sa Liu, Na Li, Wayne Bond Lau, Xinliang Ma, Jie Du, Shaoping Nie, Yongxiang Wei
BACKGROUND/AIMS: Obstructive sleep apnea hypoxia syndrome (OSAHS) is an independent risk factor for coronary artery disease (CAD). Treatment of OSAHS improves clinical outcome in some CAD patients, but the relationship between OSAHS and CAD is complex. Microparticles (MPs) are shed by the plasma membrane by either physiologic or pathologic stimulation. In the current study, we investigated the role of MPs in the context of OSAHS. METHODS AND RESULTS: 54 patients with both suspected coronary artery stenosis and OSAHS were recruited and underwent both coronary arteriography and polysomnography...
November 1, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29129620/human-adipose-derived-stem-cells-adsc-and-human-periodontal-ligament-stem-cells-pdlsc-as-cellular-substrates-of-a-toxicity-prediction-assay
#18
Natássia Caroline Resende Corrêa, Crisciele Kuligovski, Ariane Caroline Campos Paschoal, Ana Paula Ressetti Abud, Carmen Lucia Kuniyoshi Rebelatto, Lidiane Maria Boldrini Leite, Alexandra Cristina Senegaglia, Bruno Dallagiovanna, Alessandra Melo de Aguiar
With the increasing need to develop in vitro assays to replace animal use, human stem cell-derived methods are emerging and showing outstanding contributions to the toxicological screening of substances. Adult human stem cells such as adipose-derived stem cells (ADSC) and periodontal ligament stem cells (PDLSC) were used as cell substrates for a cytotoxicity assay and toxicity prediction using the neutral red uptake (NRU) assay. First, primary cell cultures from three independent donors, from each tissue source, were characterized as mesenchymal stem cells (MSC) by plastic adherence and appropriate immunophenotype for MSC markers (positive for CD90, CD73, and CD105 and negative for CD11b, CD34, CD45, HLADR, and CD19)...
November 9, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/29128936/hospital-time-prior-to-death-and-pancreas-histopathology-implications-for-future-studies
#19
Irina Kusmartseva, Maria Beery, Tiffany Philips, Stephen Selman, Priyanka Jadhav, Clive Wasserfall, Axel Muller, Alberto Pugliese, Jeffrey A Longmate, Desmond A Schatz, Mark A Atkinson, John S Kaddis
AIMS/HYPOTHESIS: Diabetes research studies routinely rely upon the use of tissue samples from human organ donors. It remains unclear whether the length of hospital stay prior to organ donation affects the presence of cells infiltrating the pancreas or the frequency of replicating beta cells. METHODS: To address this, 39 organ donors without diabetes were matched for age, sex, BMI and ethnicity in groups of three. Within each group, donors varied by length of hospital stay immediately prior to organ donation (<3 days, 3 to <6 days, or ≥6 days)...
November 11, 2017: Diabetologia
https://www.readbyqxmd.com/read/29128556/pro-140-monoclonal-antibody-to-ccr5-prevents-acute-xenogeneic-graft-versus-host-disease-in-nod-scid-il-2ry-null-mice
#20
Denis R Burger, Yvonne Parker, Kathryn Guinta, Daniel Lindner
Graft-versus-Host Disease (GvHD) is a prevalent and potentially lethal complication of hematopoietic stem cell transplantation (HSCT). Humanized mouse models of xenogeneic-GvHD are important tools used to study the human immune response in vivo. Here we used NOD-scid IL-2Ry(null) mice (NSG) transplanted with human bone marrow stem cells to evaluate the role of immune cell engraftment in the production of acute GvHD. PRO 140, a humanized monoclonal antibody targeting the chemokine receptor, CCR5, was used to evaluate its influence on bone marrow cell engraftment and modulation of acute GvHD...
November 8, 2017: Biology of Blood and Marrow Transplantation
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