keyword
MENU ▼
Read by QxMD icon Read
search

Antigen array

keyword
https://www.readbyqxmd.com/read/29774029/lfa-1-in-t-cell-migration-and-differentiation
#1
REVIEW
Brandon L Walling, Minsoo Kim
Maintenance of homeostatic immune surveillance and development of effective adaptive immune responses require precise regulation of spatial and temporal lymphocyte trafficking throughout the body to ensure pathogen clearance and memory generation. Dysregulation of lymphocyte activation and migration can lead to impaired adaptive immunity, recurrent infections, and an array of autoimmune diseases and chronic inflammation. Central to the recruitment of T cells, integrins are cell surface receptors that regulate adhesion, signal transduction, and migration...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29769377/-ex-vivo-cytokine-release-determined-by-a-multiplex-cytokine-assay-in-response-to-coccidioidal-antigen-stimulation-of-whole-blood-among-subjects-with-recently-diagnosed-primary-pulmonary-coccidioidomycosis
#2
Neil M Ampel, Ian Robey, Chinh T Nguyen, Brentin Roller, Jessica August, Kenneth S Knox, Demosthenes Pappagianis
The elements of the cellular immune response in human coccidioidomycosis remain undefined. We examined the ex vivo release of an array of inflammatory proteins in response to incubation with a coccidioidal antigen preparation to ascertain which of these might be associated with diagnosis and outcome. Patients with a recent diagnosis of primary pulmonary coccidioidomycosis and a control group of healthy subjects were studied. Blood samples were incubated for 18 h with T27K, a soluble coccidioidal preparation containing multiple glycosylated antigens, and the supernatant was assayed for inflammatory proteins using the multiplex Luminex system...
June 27, 2018: MSphere
https://www.readbyqxmd.com/read/29766649/lysyl-oxidase-a-colorectal-cancer-biomarker-of-lung-and-hepatic-metastasis
#3
Yun Liu, Guanghui Wang, Zhonglin Liang, Zubing Mei, Tingyu Wu, Ang Cui, Chenying Liu, Long Cui
BACKGROUND: Colorectal cancer (CRC) is a common and lethal disease in which distant metastasis remains the primary cause of death. Paradoxical roles of LOX have been reported in CRC, and the intracellular function of LOX has also recently been determined. Correlations of LOX expression and its intracellular localization with clinicopathological features in CRC patients remain largely unknown. The aim of the present study was to explore the potential roles of LOX in CRC. METHODS: LOX messenger RNA expression was assayed by quantitative PCR in eight paired normal mucosa and tumor tissues...
May 15, 2018: Thoracic Cancer
https://www.readbyqxmd.com/read/29764158/what-is-the-role-of-immunotherapy-in-breast-cancer
#4
Tira J Tan, Jack J Chan, Sulastri Kamis, Rebecca Alexandra Dent
The immune system plays a complex role in the recognition/prevention, early eradication as well as progression of cancer. Recently, we have witnessed great momentum in the field of immuno-oncology. Checkpoint inhibitors and chimeric antigen receptor T cell therapy have now entered the clinic, with impressive and durable clinical responses seen across a broad array of tumor types. There are several lines of evidence supporting the development of an immune targeted approach in breast cancer. Emerging data of early clinical trials evaluating monotherapy checkpoint inhibition have shown modest activity in breast cancer, in particular high grade and aggressive subtypes such as triple negative, human epidermal growth factor receptor 2 (HER2)-positive and luminal B breast cancers...
April 2018: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/29763607/biomedical-applications-of-lumazine-synthase
#5
Yangjie Wei, Prashant Kumar, Newton Wahome, Nicholas J Mantis, C Russell Middaugh
Lumazine synthase (LS) is a family of enzyme involved in the penultimate step in the biosynthesis of riboflavin. Its enzymatic mechanism has been well defined and many LS structures have been solved using x-ray crystallography or cryo-electron microscopy. LS is composed of homo-oligomers, which vary in size and subunit number, including pentamers, decamers, and icosahedral sixty-mers, depending on its species of origin. Research on LS has expanded beyond the initial focus on its enzymatic function to properties related to its oligomeric structure and exceptional conformational stability...
May 12, 2018: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29760479/immunoprofiling-of-chlamydia-trachomatis-using-whole-proteome-microarrays-generated-by-on-chip-in-situ-expression
#6
Katrin Hufnagel, Smiths Lueong, Martina Willhauck-Fleckenstein, Agnes Hotz-Wagenblatt, Beiping Miao, Andrea Bauer, Angelika Michel, Julia Butt, Michael Pawlita, Jörg D Hoheisel, Tim Waterboer
Using Chlamydia trachomatis (Ct) as a complex model organism, we describe a method to generate bacterial whole-proteome microarrays using cell-free, on-chip protein expression. Expression constructs were generated by two successive PCRs directly from bacterial genomic DNA. Bacterial proteins expressed on microarrays display antigenic epitopes, thereby providing an efficient method for immunoprofiling of patients and allowing de novo identification of disease-related serum antibodies. Through comparison of antibody reactivity patterns, we newly identified antigens recognized by known Ct-seropositive samples, and antigens reacting only with samples from cervical cancer (CxCa) patients...
May 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29756761/digital-microarrays-single-molecule-readout-with-interferometric-detection-of-plasmonic-nanorod-labels
#7
Derin Sevenler, George G Daaboul, Fulya Ekiz Kanik, Nese Lortlar Ünlü, M Selim Ünlu
DNA and protein microarrays are a high-throughput technology that allow the simultaneous quantification of tens of thousands of different biomolecular species. The mediocre sensitivity and limited dynamic range of traditional fluorescence microarrays compared to other detection techniques have been the technology's Achilles' Heel, and prevented their adoption for many biomedical and clinical diagnostic applications. Previous work to enhance the sensitivity of microarray readout to the single-molecule ('digital') regime have either required signal amplifying chemistry or sacrificed throughput, nixing the platform's primary advantages...
May 14, 2018: ACS Nano
https://www.readbyqxmd.com/read/29755478/the-contribution-of-autoantibodies-to-inflammatory-cardiovascular-pathology
#8
REVIEW
Lee A Meier, Bryce A Binstadt
Chronic inflammation and resulting tissue damage underlie the vast majority of acquired cardiovascular disease (CVD), a general term encompassing a widely diverse array of conditions. Both innate and adaptive immune mechanisms contribute to chronic inflammation in CVD. Although maladies, such as atherosclerosis and cardiac fibrosis, are commonly conceptualized as disorders of inflammation, the cellular and molecular mechanisms that promote inflammation during the natural history of these diseases in human patients are not fully defined...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29754112/mr1-antigen-presentation-to-mait-cells-new-ligands-diverse-pathways
#9
REVIEW
Hamish Eg McWilliam, Jose A Villadangos
The major histocompatibility complex class I-related molecule MR1 is the only antigen (Ag) presenting molecule that captures and displays vitamin B-derived metabolites that are unique to a wide array of microbes. Presentation of these metabolite Ag at the cell surface activates mucosal-associated invariant T (MAIT) cells, a highly abundant innate-like T cell population, and represents a recently-described mechanism used by the mammalian immune system to sense pathogenic or commensal microbes. Our understanding of the cell biology of how MR1 accomplishes this unique task is still evolving, but recent advances are allowing a general picture to emerge...
May 10, 2018: Current Opinion in Immunology
https://www.readbyqxmd.com/read/29752599/assignment-by-negative-ion-electrospray-tandem-mass-spectrometry-of-the-tetrasaccharide-backbones-of-monosialylated-glycans-released-from-bovine-brain-gangliosides
#10
Wengang Chai, Yibing Zhang, Laura Mauri, Maria G Ciampa, Barbara Mulloy, Sandro Sonnino, Ten Feizi
Gangliosides, as plasma membrane-associated sialylated glycolipids, are antigenic structures and they serve as ligands for adhesion proteins of pathogens, for toxins of bacteria, and for endogenous proteins of the host. The detectability by carbohydrate-binding proteins of glycan antigens and ligands on glycolipids can be influenced by the differing lipid moieties. To investigate glycan sequences of gangliosides as recognition structures, we have underway a program of work to develop a "gangliome" microarray consisting of isolated natural gangliosides and neoglycolipids (NGLs) derived from glycans released from them, and each linked to the same lipid molecule for arraying and comparative microarray binding analyses...
May 11, 2018: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/29749614/microrna-signature-of-central-nervous-system-infiltrating-dendritic-cells-in-an-animal-model-of-multiple-sclerosis
#11
Mariah L Hoye, Angela S Archambault, Taylor M Gordon, Landon K Oetjen, Matthew D Cain, Robyn S Klein, Seth D Crosby, Brian S Kim, Timothy M Miller, Gregory F Wu
Innate immune cells are integral to the pathogenesis of several diseases of the central nervous system (CNS), including multiple sclerosis (MS). Dendritic cells (DCs) are potent CD11c+ antigen-presenting cells that are critical regulators of adaptive immune responses, particularly in autoimmune diseases such as MS. The regulation of DC function in both the periphery and CNS compartment has not been fully elucidated. One limitation to studying the role of CD11c+ DCs in the CNS is that microglia can upregulate CD11c during inflammation, making it challenging to distinguish bone marrow-derived DCs (BMDCs) from microglia...
May 10, 2018: Immunology
https://www.readbyqxmd.com/read/29746492/glycan-binding-preferences-and-genetic-evolution-of-human-seasonal-influenza-a-h3n2-viruses-during-1999-2007-in-taiwan
#12
Ya-Fang Wang, Chuan-Fa Chang, Huey-Pin Tsai, Chia-Yu Chi, Ih-Jen Su, Jen-Ren Wang
It is generally agreed that human influenza virus preferentially binds to α-2,6-linked sialic acid-containing receptors, and mutations that change the binding preference may alter virus infectivity and host tropism. Limited information is available on the glycan-binding specificity of epidemic influenza viruses. In this study, we systemically investigated the glycan-binding preferences of human influenza A(H3N2) viruses isolated from 1999 to 2007 in Taiwan using a high-throughput carbohydrate array. The binding patterns of 37 H3N2 viruses were classified into three groups with significant binding-pattern variations...
2018: PloS One
https://www.readbyqxmd.com/read/29740033/a-bivalent-protein-r-pb-comprising-pa-and-bcla-immunodominant-regions-for-comprehensive-protection-against-bacillus-anthracis
#13
Saugata Majumder, Shreya Das, Vikas Somani, Shivakiran S Makam, Kingston J Joseph, Rakesh Bhatnagar
Anthrax infection is primarily initiated by B. anthracis endospores that on entry into the host germinate to vegetative cells and cause severe bacteremia and toxaemia employing an array of host colonisation factors and the lethal tripartite toxin. The protective efficacy of conventional protective antigen (PA) based anthrax vaccines is improved by co-administration with inactivated spores or its components. In the present study, using structural vaccinology rationale we synthesized a bivalent protein r-PB encompassing toxin (PAIV) and spore components (BclACTD) and characterized its protective efficacy against B...
May 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29739068/performance-evaluation-of-protein-chip-assay-for-rapid-diagnosis-of-hepatitis-c-virus-infection-in-injection-drug-abusers
#14
Zhiyan Dai, Xin Shu, Gang Li, Weidong Xi
BACKGROUND: We evaluated the performance of a protein chip assay for the detection of antibodies to hepatitis C virus (HCV) peptides among injection drug abusers (IDAs) by comparing the assay with existing methods, including enzyme-linked immunosorbent assay (ELISA), reverse transcription-polymerase chain reaction (RT-PCR), and recombinant immunoblot assay (RIBA). METHODS: Seventy serum samples collected from IDAs were analyzed by protein chip assay. ELISA, RT-PCR, and RIBA assay were used to validate the results...
April 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29731998/development-of-novel-monoclonal-antibodies-against-cd109-overexpressed-in-human-pancreatic-cancer
#15
Gustavo A Arias-Pinilla, Angus G Dalgleish, Satvinder Mudan, Izhar Bagwan, Anthony J Walker, Helmout Modjtahedi
Pancreatic cancer is one of the most aggressive and lethal types of cancer, and more effective therapeutic agents are urgently needed. Overexpressed cell surface antigens are ideal targets for therapy with monoclonal antibody (mAb)-based drugs, but none have been approved for the treatment of pancreatic cancer. Here, we report development of two novel mouse mAbs, KU42.33C and KU43.13A, against the human pancreatic cancer cell line BxPC-3. Using ELISA, flow cytometry, competitive assay and immunoprecipitation followed by mass spectrometry, we discovered that these two mAbs target two distinct epitopes on the external domain of CD109 that are overexpressed by varying amounts in human pancreatic cancer cell lines...
April 13, 2018: Oncotarget
https://www.readbyqxmd.com/read/29729907/technical-note-p40-antibody-as-a-replacement-for-p63-antibody-in-bovine-mammary-immunohistochemistry
#16
C L M Parsons, H L M Tucker, R M Akers, K M Daniels
Tumor protein 63 (p63) is a nuclear antigen found in basal epithelial cells. To date, 10 isoforms of p63 have been identified, falling into 2 major groups identified by presence or absence of an N-terminal transactivation domain (TAp63 and ΔNp63, respectively). Literature suggests that ΔNp63 is the predominant form expressed in basal epithelial cells and myoepithelial cells (MYEC). The mouse anti-p63 antibody, clone 4B1E12, has been used as a specific nuclear marker for bovine MYEC. Unfortunately, this antibody is no longer commercially available...
May 2, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29721954/identifying-key-networks-linked-to-light-independent-photoreceptor-degeneration-in-visual-arrestin-1-knockout-mice
#17
Hwa Sun Kim, Shun-Ping Huang, Eun-Jin Lee, Cheryl Mae Craft
When visual arrestin 1 (ARR1, S-antigen, 48 KDa protein) was genetically knocked out in mice (original Arr1 -/- , designated Arr1 -/-A ), rod photoreceptors degenerated in a light-dependent manner. Subsequently, a light-independent cone dystrophy was identified with minimal rod death in ARR1 knockout mice (Arr1 -/-A Arr4 +/+ , designated Arr1 -/-B ), which were F2 littermates from breeding the original Arr1 -/-A and cone arrestin knockout 4 (Arr4 -/- ) mice. To resolve the genetic and phenotypic differences between the two ARR1 knockouts, we performed Affymetrix™ exon array analysis to focus on the potential differential gene expression profile and to explore the molecular and cellular pathways leading to this observed susceptibility to cone dystrophy in Arr1 -/-B compared to Arr1 -/-A or control Arr1 +/+ Arr4 +/+ (wild type [WT])...
2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29718270/protein-adhesins-as-vaccine-antigens-for-group-a-streptococcus
#18
J M Raynes, P G Young, T Proft, D A Williamson, E N Baker, N J Moreland
Group A Streptococcus (GAS) is a globally important human pathogen that causes a broad spectrum of disease ranging from mild superficial infections to severe invasive diseases with high morbidity and mortality. Currently, there is no vaccine available for human use. GAS produces a vast array of virulence factors including multiple adhesin molecules. These mediate binding of the bacteria to host tissues and are essential in the initial phases of infection. Prophylactic vaccination with adhesins is a promising vaccine strategy and many GAS adhesins are currently in development as vaccine candidates...
March 1, 2018: Pathogens and Disease
https://www.readbyqxmd.com/read/29714023/multiplexed-antigen-bead-arrays-for-the-assessment-of-antibody-selectivity-and-epitope-mapping
#19
Burcu Ayoglu, Peter Nilsson, Jochen M Schwenk
With the increasing number of binding reagents for affinity-based investigations of the human proteome, high-throughput tools for the characterization of the used reagents become essential. For the analysis of binding selectivity, bead-based antigen arrays offer a miniaturized and parallelized assay platform to meet such needs, as they enable two-dimensional multiplexing to analyze up to 384 samples against up to 500 analytes in a single round of analysis. In this chapter, we describe our protocols for the generation of multiplex bead arrays built on immobilized protein fragments, as well as biotinylated peptides...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29714021/antibody-specificity-profiling-using-protein-microarrays
#20
Pedro Ramos-López, José Irizarry, Ignacio Pino, Seth Blackshaw
Antibodies are the most widely used reagent for isolation and detection of specific proteins. However, using antibodies that are not highly specific in these studies can generate inaccurate and misleading data. Protein microarrays offer a platform by which antibody cross-reactivity against a broad range of cellular antigens can be simultaneously and quantitatively profiled. This protocol describes in detail the process of array pretreatment, antibody binding, washing, scanning and quantitative analysis of antibody specificity...
2018: Methods in Molecular Biology
keyword
keyword
99531
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"