keyword
MENU ▼
Read by QxMD icon Read
search

Mass cytometry

keyword
https://www.readbyqxmd.com/read/27906052/antibody-responses-to-de-novo-identified-citrullinated-fibrinogen-peptides-in-rheumatoid-arthritis-and-visualization-of-the-corresponding-b-cells
#1
Vijay Joshua, Loes Schobers, Philip J Titcombe, Lena Israelsson, Johan Rönnelid, Monika Hansson, Anca I Catrina, Ger J M Pruijn, Vivianne Malmström
BACKGROUND: Antibodies against citrullinated proteins (ACPA) are common in patients with rheumatoid arthritis (RA). ACPA can appear before disease onset and target many self-antigens. Citrullinated fibrin/fibrinogen represents a classical ACPA target antigen, and mass spectrometry of RA synovial fluid reveals elevated citrullinated (cit) fibrinogen (Fib) peptides compared to non-RA controls. We investigated the extent to which these less-studied peptides represent autoantibody targets and sought to visualize the corresponding cit-Fib-reactive B cells in RA patients...
December 1, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27906039/peering-below-the-diffraction-limit-robust-and-specific-sorting-of-viruses-with-flow-cytometry
#2
Shea T Lance, David J Sukovich, Kenneth M Stedman, Adam R Abate
BACKGROUND: Viruses are incredibly diverse organisms and impact all forms of life on Earth; however, individual virions are challenging to study due to their small size and mass, precluding almost all direct imaging or molecular analysis. Moreover, like microbes, the overwhelming majority of viruses cannot be cultured, impeding isolation, replication, and study of interesting new species. Here, we introduce PCR-activated virus sorting, a method to isolate specific viruses from a heterogeneous population...
December 1, 2016: Virology Journal
https://www.readbyqxmd.com/read/27897009/an-updated-debarcoding-tool-for-mass-cytometry-with-cell-type-specific-and-cell-sample-specific-stringency-adjustment
#3
Kristen I Fread, William D Strickland, Garry P Nolan, Eli R Zunder
Pooled sample analysis by mass cytometry barcoding carries many advantages: reduced antibody consumption, increased sample throughput, removal of cell doublets, reduction of cross-contamination by sample carryover, and the elimination of tube-to-tube-variability in antibody staining. A single-cell debarcoding algorithm was previously developed to improve the accuracy and yield of sample deconvolution, but this method was limited to using fixed parameters for debarcoding stringency filtering, which could introduce cell-specific or sample-specific bias to cell yield in scenarios where barcode staining intensity and variance are not uniform across the pooled samples...
2016: Pacific Symposium on Biocomputing
https://www.readbyqxmd.com/read/27888565/applying-mass-cytometry-to-the-analysis-of-lymphoid-populations-in-transplantation
#4
Sheri M Krams, Steven Schaffert, Audrey H Lau, Olivia M Martinez
Single-cell flow cytometric techniques have been indispensable to improving our understanding of the phenotype and function of immune cell subsets that are important in both rejection and tolerance post-transplant. Mass cytometry, or Cytometry by Time-of-Flight (CyTOF), is a single cell-based platform that utilizes antibodies conjugated to rare heavy metal ions for analysis of cellular proteins by a time-of-flight mass spectrometer. This new technology allows for the evaluation of over 40 simultaneous cellular parameters in a single sample because the limitation of spectral overlap, seen in conventional flow cytometry, is eliminated...
November 26, 2016: American Journal of Transplantation
https://www.readbyqxmd.com/read/27885039/th17-cell-frequency-and-il-17a-concentrations-in-peripheral-blood-mononuclear-cells-and-vitreous-fluid-from-patients-with-diabetic-retinopathy
#5
Hui Chen, Xiangrong Ren, Nanying Liao, Feng Wen
OBJECTIVE: To quantify T helper (Th)17 cells and determine interleukin (IL)-17A levels in peripheral blood mononuclear cell (PBMC) culture and vitreous fluid from patients with type 2 diabetes mellitus (T2DM) with diabetic retinopathy (DR). METHODS: Th17 cell frequency and IL-17A concentrations in PBMCs from 60 patients with T2DM with DR, 30 without DR and 30 sex- and age-matched healthy individuals were measured by flow cytometry and enzyme-linked immunosorbent assay (ELISA), respectively...
November 24, 2016: Journal of International Medical Research
https://www.readbyqxmd.com/read/27882691/image-guided-fna-cytology-and-flow-cytometry-phenotyping-of-neck-lymphadenopathy-for-the-diagnosis-of-recurrent-lymphoma
#6
F Lumachi, A Fassina, R Tozzoli, A Tregnaghi, S M M Basso, M Ermani
OBJECTIVE: In patients with a history of lymphoma, each lymphadenopathy should be carefully evaluated. The aims of this study were to evaluate (i) the usefulness of high-resolution ultrasonography (US), US-guided fine-needle aspiration cytology (FNAC) and flow cytometry phenotyping (FCP) together in the diagnosis of recurrent lymphoma, and (ii) whether these tools were independent predictors of correct results. DESIGN: Retrospective cohort study with stepwise forward logistic regression analysis of results...
November 24, 2016: Clinical Otolaryngology
https://www.readbyqxmd.com/read/27882092/the-influence-of-exendin-4-intervention-on-obese-diabetic-mouse-blood-and-the-pancreatic-tissue-immune-microenvironment
#7
Jinshui He, Chaowei Lian, Yanling Fang, Jinzhi Wu, Huowang Zhou, Xiaoling Ye
The aim of the study was to determine the influence of exendin-4 intervention on non-obese diabetic (NOD) mouse blood and the pancreatic tissue immune microenvironment. A total of 40 clean NOD mice were used in the study and randomly divided into 4 groups (n=10/group). The first group was blank control group D with normal saline intervention, and with different doses of exendin, i.e.,-4 2, 4 and 8 µg/kg/day. The three remaining groups were: i) Low-dose group A; ii) medium-dose group B; and iii) high-dose group C...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27874247/the-road-ahead-implementing-mass-cytometry-in-clinical-studies-one-cell-at-a-time
#8
EDITORIAL
Quentin Baca, Antonio Cosma, Garry Nolan, Brice Gaudilliere
No abstract text is available yet for this article.
November 22, 2016: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/27870891/oxldl-and-eldl-induced-membrane-microdomains-in-human-macrophages
#9
Stefan Wallner, Margot Grandl, Gerhard Liebisch, Markus Peer, Evelyn Orsó, Alexander Sigrüner, Andrzej Sobota, Gerd Schmitz
BACKGROUND: Extravasation of macrophages and formation of lipid-laden foam cells are key events in the development and progression of atherosclerosis. The degradation of atherogenic lipoproteins subsequently leads to alterations in cellular lipid metabolism that influence inflammatory signaling. Especially sphingolipids and ceramides are known to be involved in these processes. We therefore analyzed monocyte derived macrophages during differentiation and after loading with enzymatically (eLDL) and oxidatively (oxLDL) modified low-density lipoproteins (LDL)...
2016: PloS One
https://www.readbyqxmd.com/read/27868107/class-i-hla-haplotypes-form-two-schools-that-educate-nk-cells-in-different-ways
#10
Amir Horowitz, Zakia Djaoud, Neda Nemat-Gorgani, Jeroen Blokhuis, Hugo G Hilton, Vivien Béziat, Karl-Johan Malmberg, Paul J Norman, Lisbeth A Guethlein, Peter Parham
Natural killer (NK) cells are lymphocytes having vital functions in innate and adaptive immunity, as well as placental reproduction. Controlling education and functional activity of human NK cells are various receptors that recognize HLA class I on the surface of tissue cells. Epitopes of polymorphic HLA-A,-B and -C are recognized by equally diverse killer cell immunoglobulin-like receptors (KIR). In addition, a peptide cleaved from the leader sequence of HLA-A,-B or -C must bind to HLA-E for it to become a ligand for the conserved CD94:NKG2A receptor...
September 2016: Science Immunology
https://www.readbyqxmd.com/read/27867760/pico-and-nanoplankton-abundance-and-carbon-stocks-along-the-brazilian-bight
#11
Catherine Gérikas Ribeiro, Adriana Lopes Dos Santos, Dominique Marie, Vivian Helena Pellizari, Frederico Pereira Brandini, Daniel Vaulot
Pico and nanoplankton communities from the Southwest Atlantic Ocean along the Brazilian Bight are poorly described. The hydrography in this region is dominated by a complex system of layered water masses, which includes the warm and oligotrophic Tropical Water (TW), the cold and nutrient rich South Atlantic Central Water (SACW) and the Coastal Water (CW), which have highly variable properties. In order to assess how pico- and nanoplankton communities are distributed in these different water masses, we determined by flow cytometry the abundance of heterotrophic bacteria, Prochlorococcus, Synechococcus and autotrophic pico and nanoeukaryotes along three transects, extending from 23°S to 31°S and 39°W to 49°W...
2016: PeerJ
https://www.readbyqxmd.com/read/27865348/nutrient-restriction-of-glucose-or-serum-results-in-similar-proteomic-expression-changes-in-3d-colon-cancer-cell-cultures
#12
Monica M Schroll, Xin Liu, Sarah K Herzog, Susan B Skube, Amanda B Hummon
Nutrient restriction, also known as caloric restriction, has been extensively examined for its positive impact on lifespan, immune system boost, and aging. In addition, nutrient restriction is implicated in decreasing cancer initiation and progression. Given the phenotypic changes associated with nutrient restriction, we hypothesized significant protein expression alterations must be associated with caloric restriction. To compare the molecular and phenotypic changes caused by glucose restriction and fetal bovine serum restriction there is need for an efficient model system...
October 2016: Nutrition Research
https://www.readbyqxmd.com/read/27863957/ex-vivo-complexation-skin-permeation-interaction-and-cytodermal-toxicity-studies-of-p-tertbutylcalix-4-arene-nanoemulsion-for-radiation-decontamination
#13
Navneet Sharma, Himanshu Ojha, Dharam Pal Pathak, Rajeev Goel, Rakesh Kumar Sharma
AIMS: p-Tertbutylcalix [4]arene loaded nanoemulsion has been designed, characterized and evaluated for skin decontamination of radionuclides of interest in nuclear and radiological emergencies. Further, nanoemulsion was evaluated for Ex-vivo complexation, skin permeation, interaction and cytodermal toxicity. MATERIALS AND METHODS: Ex-vivo skin complexation studies were conducted using High-resolution sector field inductively coupled plasma mass spectroscopy (HR-SF-ICPMS)...
November 15, 2016: Life Sciences
https://www.readbyqxmd.com/read/27863106/2-arachidonoylglycerol-levels-are-increased-in-leukocytospermia-and-correlate-with-seminal-macrophages
#14
A Barbonetti, T Bisogno, N Battista, F Piscitelli, A Micillo, S Francavilla, M Maccarrone, F Francavilla
Evidence has been produced that macrophages can actively generate endocannabinoids (eCBs) in response to inflammatory stimuli. As eCBs are involved in the control of several physiological processes, including reproduction, here, we explored whether seminal levels of the eCBs, N-arachidonoylethanolamine (AEA), and 2-arachidonoylglycerol (2-AG), were higher in the presence of leukocytospermia, and were correlated with semen concentration of macrophages. The content of AEA and 2-AG was measured by high-performance liquid chromatography/mass spectrometry in seminal plasma of ejaculates from 18 leukocytospermic patients (>1 × 10(6) leukocytes/mL) and 21 normozoospermic controls...
November 11, 2016: Andrology
https://www.readbyqxmd.com/read/27861499/maternal-filarial-infection-influences-the-development-of-regulatory-t-cells-in-children-from-infancy-to-early-childhood
#15
Madhusmita Bal, Manoranjan Ranjit, K Gopinath Achary, Ashok K Satapathy
BACKGROUND: Children born from filarial infected mothers are comparatively more susceptible to filarial infection than the children born to uninfected mothers. But the mechanism of such increased susceptibility to infection in early childhood is not exactly known. Several studies have shown the association of active filarial infection with T cell hypo-responsiveness which is mediated by regulatory T cells (Tregs). Since the Tregs develop in the thymus from CD4+ CD25hi thymocytes at an early stage of the human fetus, it can be hypothesized that the maternal infection during pregnancy affects the development of Tregs in children at birth as well as early childhood...
November 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27836724/immune-priming-and-portal-of-entry-effectors-improve-response-to-vibrio-infection-in-a-resistant-population-of-the-european-abalone
#16
Bruno Dubief, Flavia L D Nunes, Olivier Basuyaux, Christine Paillard
Since 1997, populations of the European abalone Haliotis tuberculata suffer mass mortalities attributed to the bacterium Vibrio harveyi. These mortalities occur at the spawning season, when the abalone immune system is depressed, and when temperatures exceed 17 °C, leading to favorable conditions for V. harveyi proliferation. In order to identify mechanisms of disease resistance, experimental successive infections were carried out on two geographically distinct populations: one that has suffered recurrent mortalities (Saint-Malo) and one that has not been impacted by the disease (Molène)...
November 8, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27833472/integrated-glycomic-analysis-of-ovarian-cancer-side-population-cells
#17
Ran Zhao, Xiaoxia Liu, Yisheng Wang, Xiaoxiang Jie, Ruihuan Qin, Wenjun Qin, Mengyu Zhang, Haiyan Tai, Caiting Yang, Lili Li, Peike Peng, Miaomiao Shao, Xingwang Zhang, Hao Wu, Yuanyuan Ruan, Congjian Xu, Shifang Ren, Jianxin Gu
BACKGROUND: Ovarian cancer is the most lethal gynecological malignancy due to its frequent recurrence and drug resistance even after successful initial treatment. Accumulating scientific evidence indicates that subpopulations of cancer cells with stem cell-like properties, such as so-called side population (SP) cells, are primarily responsible for these recurrences. A better understanding of SP cells may provide new clues for detecting and targeting these cancer-initiating cells and ultimately help to eradicate cancer...
2016: Clinical Proteomics
https://www.readbyqxmd.com/read/27832777/a-proteomic-analysis-of-acute-leukemia-cells-treated-with-9-hydroxyoctadecadienoic-acid
#18
Zhen Li, Bohong Chen, Ping Wang, Xin Li, Gaotai Cai, Wei Wei, Wenqi Dong
BACKGROUND: 9s-hydroxy-octadecadienoic acid (9S-HOD), one of the natural products of linoleic acid oxygenation by 15-lipoxygenase (15-LOX), has been found to have anti-tumor properties in vitro and in vivo. The present study therefore investigated whether 9S-HOD affects acute leukemia HL-60 cells. METHODS: The cytotoxicity of 9S-HOD in HL-60 with or without the presence of fetal bovine serum (FBS) in the culture media was tested using cell viability assays and flow cytometry...
November 10, 2016: Lipids in Health and Disease
https://www.readbyqxmd.com/read/27828834/serum-decorin-interleukin-1%C3%AE-and-transforming-growth-factor-%C3%AE-predict-hypertrophic-scarring-postburn
#19
Peter O Kwan, Jie Ding, Edward E Tredget
Hypertrophic scar after burn injury is a significant problem. Previous studies have examined the roles for decorin, interleukin-1β, and transforming growth factor-β1 in hypertrophic scar formation locally, but few have considered their systemic influence. The authors conducted a pilot study to examine whether serum levels of these molecules could predict hypertrophic scar formation. Serum levels were measured using enzyme-linked immunosorbent assay, and hypertrophic scar formation determined from chart reviews...
November 2016: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/27827829/distinct-signaling-programs-control-human-hematopoietic-stem-cell-survival-and-proliferation
#20
David J H F Knapp, Colin A Hammond, Nima Aghaeepour, Paul H Miller, Davide Pellacani, Philip A Beer, Karen Sachs, Wenlian Qiao, WeiJia Wang, R Keith Humphries, Guy Sauvageau, Peter W Zandstra, Sean C Bendall, Garry P Nolan, Carl Hansen, Connie J Eaves
Several growth factors (GFs) that together promote quiescent human hematopoietic stem cell (HSC) expansion ex vivo have been identified. However, the molecular mechanisms by which these GFs regulate the survival, proliferation and differentiation of human HSCs remain poorly understood. We now describe experiments in which we used mass cytometry to simultaneously measure multiple surface markers, transcription factors, active signaling intermediates, viability and cell cycle indicators in single CD34(+) cord blood cells before and up to 2 hours after their stimulation with SCF, FLT3L, IL3, IL6, and G-CSF either alone or combined...
November 8, 2016: Blood
keyword
keyword
110873
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"