keyword
MENU ▼
Read by QxMD icon Read
search

Antigen

keyword
https://www.readbyqxmd.com/read/28822268/neural-precursor-cells-derived-from-induced-pluripotent-stem-cells-exhibit-reduced-susceptibility-to-infection-with-a-neurotropic-coronavirus
#1
Vrushali Mangale, Brett S Marro, Warren C Plaisted, Craig M Walsh, Thomas E Lane
The present study examines the susceptibility of mouse induced pluripotent stem cell-derived neural precursor cells (iPSC-NPCs) to infection with the neurotropic JHM strain of mouse hepatitis virus (JHMV). Similar to NPCs derived from striatum of day 1 postnatal GFP-transgenic mice (GFP-NPCs), iPSC-derived NPCs (iPSC-NPCs) are able to differentiate into terminal neural cell types and express MHC class I and II in response to IFN-γ treatment. However, in contrast to postnatally-derived NPCs, iPSC-NPCs express low levels of carcinoembryonic antigen-cell adhesion molecule 1a (CEACAM1a), the surface receptor for JHMV, and are less susceptible to infection and virus-induced cytopathic effects...
August 16, 2017: Virology
https://www.readbyqxmd.com/read/28822204/comparative-2-d-electrophoresis-of-salivary-proteins-in-triatoma-dimidiata-and-rhodnius-prolixus-hemiptera-reduviidae-and-major-cross-reactive-antigens
#2
Victor Monteon, Ivan May-Gil, Karla Acosta-Viana, Angel Ramos-Logonio, Oscar Hernandez, Ruth Lopez
An immune response to triatomine’s saliva is an immunological marker of exposure to triatomine bites. However, considerable variability in salivary protein profiles did exist among species. In the present work, we compare salivary proteins from Mexican Triatoma dimidiata and Rhodnius prolixus using 2-D electrophoresis. A clear differential saliva profile was found to exist between these two triatomine species. Fewer protein spots were detected in R. prolixus than in T. dimidiata. More than half of the proteins had an isoelectric point between 5 and 7 and a molecular weight between 10 and 30 kDa in T...
2017: Annals of Parasitology
https://www.readbyqxmd.com/read/28822103/current-progress-in-innovative-engineered-antibodies
#3
REVIEW
William R Strohl
As of May 1, 2017, 74 antibody-based molecules have been approved by a regulatory authority in a major market. Additionally, there are 70 and 575 antibody-based molecules in phase III and phase I/II clinical trials, respectively. These total 719 antibody-based clinical stage molecules include 493 naked IgGs, 87 antibody-drug conjugates, 61 bispecific antibodies, 37 total Fc fusion proteins, 17 radioimmunoglobulins, 13 antibody fragments, and 11 immunocytokines. New uses for these antibodies are being discovered each year...
August 18, 2017: Protein & Cell
https://www.readbyqxmd.com/read/28822075/recycling-endosomes-in-human-cytotoxic-t-lymphocytes-constitute-an-auxiliary-intracellular-trafficking-pathway-for-newly-synthesized-perforin
#4
Kelsey Lesteberg, Jordan Orange, George Makedonas
Although cytotoxic T lymphocytes (CTLs) store perforin within cytoplasmic secretory granules for immediate use, perforin is synthesized anew within hours of TCR stimulation. Previously, we observed new perforin protein at an immunologic synapse independent of secretory lysosomes; herein, we aimed to determine how new perforin transits to the synapse if not via lytic granules. We analyzed antigen-specific human CTLs via imaging flow cytometry and high-resolution confocal microscopy, with attention to intracellular trafficking components and new perforin...
August 18, 2017: Immunologic Research
https://www.readbyqxmd.com/read/28821845/fluticasone-salmeterol-reduces-remodelling-and-neutrophilic-inflammation-in-severe-equine-asthma
#5
Michela Bullone, Amandine Vargas, Yvonne Elce, James G Martin, Jean-Pierre Lavoie
Asthmatic airways are inflamed and undergo remodelling. Inhaled corticosteroids and long-acting β2-agonist combinations are more effective than inhaled corticosteroid monotherapy in controlling disease exacerbations, but their effect on airway remodelling and inflammation remains ill-defined. This study evaluates the contribution of inhaled fluticasone and salmeterol, alone or combined, to the reversal of bronchial remodelling and inflammation. Severely asthmatic horses (6 horses/group) were treated with fluticasone, salmeterol, fluticasone/salmeterol, or with antigen avoidance for 12 weeks...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821604/development-of-a-multiplexed-assay-for-oral-cancer-candidate-biomarkers-using-peptide-immunoaffinity-enrichment-and-targeted-mass-spectrometry
#6
Yung-Chin Hsiao, Lang-Ming Chi, Kun-Yi Chien, Wei-Fan Chiang, Szu-Fan Chen, Yao-Ning Chuang, Shih-Yu Lin, Chia-Chun Wu, Ya-Ting Chang, Lichieh Julie Chu, Yi-Ting Chen, Shu-Li Chia, Chih-Yen Chien, Kai-Ping Chang, Yu-Sun Chang, Jau-Song Yu
Oral cancer is one of the most common cancers worldwide, and there are currently no biomarkers approved for aiding its management. Although many potential oral cancer biomarkers have been discovered, very few have been verified in body fluid specimens in parallel to evaluate their clinical utility. The lack of appropriate multiplexed assays for chosen targets represents one of the bottlenecks to achieving this goal. In the present study, we develop a peptide immunoaffinity enrichment-coupled multiple reaction monitoring-mass spectrometry (SISCAPA-MRM) assay for verifying multiple reported oral cancer biomarkers in saliva...
August 18, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28821531/cd28-and-41bb-costimulation-enhances-the-effector-function-of-cd19-specific-engager-t-cells
#7
Mireya Paulina Velasquez, Arpad Szoor, Abishek Vaidya, Aarohi Thakkar, Phuong Nguyen, Meng-Fen Wu, Hao Liu, Stephen Gottschalk
T cells expressing CD19-specific chimeric antigen receptors (CARs) with endodomains that encode a signaling domain derived from CD3zeta and CD28 or 41BB have potent antitumor activity in early phase clinical studies for B-cell malignancies. Besides CD19-specific CARs, other approaches are actively being pursued to redirect T cells to CD19, including recombinant bispecific T-cell engager (BiTE) proteins or T cells genetically modified to express BiTEs (engager [ENG] T cells). Since BiTEs provide no costimulation, we investigated here if provision of costimulation through CD28 and 41BB enhances the effector function of CD19-ENG T cells...
August 18, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28821432/effect-of-micro-strain-stress-on-proliferation-of-endothelial-progenitor-cells-in-vitro-by-the-mapk-erk1-2-signaling-pathway
#8
Bin Zhao, Zhihu Zhao, Xiaolei Sun, Yang Zhang, Yue Guo, Peng Tian, Jianxiong Ma, Xinlong Ma
BACKGROUND: The aim of this study was to analyze the effect of micro strain stress on the proliferation of endothelial progenitor cells in vitro by the MAPK-ERK1/2 signaling pathway. MATERIAL AND METHODS: In this study, we report the effect of micro strain stress on proliferation of endothelial progenitor cells (EPCs) in vitro by loading different types of micro strain stress on EPCs. We also explore the possible mechanisms of this phenomenon. RESULTS: The results of flow cytometry show that appropriate micro strain stress can promote EPC proliferation...
August 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28820987/a-new-label-free-electrochemical-immunosensor-based-on-dendritic-core-shell-aupd-au-nanocrystals-for-highly-sensitive-detection-of-prostate-specific-antigen
#9
Rui Wang, Wei-Dong Liu, Ai-Jun Wang, Yadong Xue, Liang Wu, Jiu-Ju Feng
Herein, bimetallic dendritic core-shell AuPd@Au nanocrystals (AuPd@Au NCs) were prepared by a simple one-pot aqueous method using xanthine as a green growth-directing agent. By virtue of the enhanced peak currents in the H2O2 reduction catalyzed by AuPd@Au NCs, a label-free immunosensor was constructed for the detection of prostate specific antigen (PSA). The immunosensor exhibited significantly improved analytical performance for the assay of PSA with wide linear range of 0.1-50ngmL(-1) and low detection limit of 0...
August 10, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28820986/an-ultrasensitive-sandwich-type-electrochemical-immunosensor-based-on-the-signal-amplification-strategy-of-echinoidea-shaped-au-ag-cu2o-nanoparticles-for-prostate-specific-antigen-detection
#10
Yuying Yang, Qin Yan, Qing Liu, Yongpeng Li, Hui Liu, Ping Wang, Lei Chen, Daopeng Zhang, Yueyun Li, Yunhui Dong
Highly sensitive determination of tumor markers plays an important role in early diagnosis of cancer. Herein, a novel and ultrasensitive sandwich-type electrochemical immunosensor was fabricated for quantitative detection of prostate specific antigen (PSA). In this process, gold nanoparticles functionalized nitrogen-doped graphene quantum dots (Au@N-GQDs) was synthesized through a simple and green hydrothermal procedure to enhance conductivity, specific electrode surface area and quantity of immobilized primary antibodies (Ab1)...
August 10, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28820984/identification-of-m-tuberculosis-antigens-in-the-sera-of-tuberculosis-patients-using-biomimetic-affinity-chromatography-in-conjunction-with-esi-cid-ms-ms
#11
Guorong Ma, Jinting Pan, Jincheng Han, Lina Gao, Shulin Zhang, Rongxiu Li
The profiling of abnormally-expressed proteins in host cells using mass spectrometry (MS) analysis is a classical approach for screening disease-associated biomarkers in clinical diagnosis. However, few pathogen-specific antigens can currently be detected in serum using this proteomic approach, since these are very low-abundant proteins that are easily masked by host high-abundant proteins. Identification of pathogen-specific antigens in the sera of tuberculosis patients is crucial for the clinical diagnosis of this infectious disease, especially in immune-compromised patients...
July 31, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28820969/a-disulfide-stabilized-human-vl-single-domain-antibody-library-is-a-source-of-soluble-and-highly-thermostable-binders
#12
Kevin A Henry, Hiba Kandalaft, Michael J Lowden, Martin A Rossotti, Henk van Faassen, Greg Hussack, Yves Durocher, Dae Young Kim, Jamshid Tanha
We have previously shown that incorporation of a second intradomain disulfide linkage into camelid VHH and human VH/VL single-domain antibodies confers increased thermostability. Here, we explored the effects of introducing an additional disulfide linkage, formed between Cys48 and Cys64 (Kabat numbering), into a phage-displayed synthetic human VL library. In comparison to an identical library bearing only the highly conserved Cys23-Cys88 disulfide linkage, the disulfide-stabilized VL library tolerated a similar degree of randomization but retained a higher level of functional diversity after selection with protein L...
August 15, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28820897/persistent-infection-due-to-a-small-colony-variant-of-burkholderia-pseudomallei-leads-to-pd-1-upregulation-on-circulating-immune-cells-and-mononuclear-infiltration-in-viscera-of-experimental-balb-c-mice
#13
Jia-Xiang See, Samudi Chandramathi, Mahmood Ameen Abdulla, Jamuna Vadivelu, Esaki M Shankar
BACKGROUND: Melioidosis is a neglected tropical disease endemic across South East Asia and Northern Australia. The etiological agent, Burkholderia pseudomallei (B.pseudomallei), is a Gram-negative, rod-shaped, motile bacterium residing in the soil and muddy water across endemic regions of the tropical world. The bacterium is known to cause persistent infections by remaining latent within host cells for prolonged duration. Reactivation of the recrudescent disease often occurs in elders whose immunity wanes...
August 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28820895/identification-of-leishmania-donovani-antigen-in-circulating-immune-complexes-of-visceral-leishmaniasis-subjects-for-diagnosis
#14
Fauzia Jamal, Pushkar Shivam, Sarita Kumari, Manish Kumar Singh, Abul Hasan Sardar, Pushpanjali, Selvasankar Murugesan, Shyam Narayan, Anil Kumar Gupta, Krishna Pandey, V N R Das, Vahab Ali, Sanjiva Bimal, Pradeep Das, Shubhankar K Singh
The unreliability of most of the existing antibody-based diagnostic kits to discriminate between active and treated VL cases, relapse situation and reinfection are a major hurdle in controlling the cases of Kala-azar in an endemic area. An antigen targeted diagnostic approaches can be an attractive strategy to overcome these problems. Hence, this study was focused on identifying the Leishmania antigens, lies in circulating immune complex (CICs), can be used for diagnostic as well as prognostic purposes. The present study was conducted on peripheral blood samples of 115 human subjects, based on isolation of CICs...
2017: PloS One
https://www.readbyqxmd.com/read/28820892/maternal-autoimmune-antibodies-alter-the-dendritic-arbor-and-spine-numbers-in-the-infragranular-layers-of-the-cortex
#15
Jeanelle Ariza, Jesus Hurtado, Haille Rogers, Raymond Ikeda, Michael Dill, Craig Steward, Donnay Creary, Judy Van de Water, Verónica Martínez-Cerdeño
An association between maternal IgG antibodies reactive against proteins in fetal brain and an outcome of autism in the child has been identified. Using a mouse model of prenatal intraventricular administration of autism-specific maternal IgG, we demonstrated that these antibodies produce behavioral alterations similar to those in children with ASD. We previously demonstrated that these antibodies bind to radial glial stem cells (RG) and observed an increase in the number of divisions of translocating RG in the developing cortex...
2017: PloS One
https://www.readbyqxmd.com/read/28820727/sustained-off-treatment-response-after-discontinuation-of-long-term-nucleos-t-ide-analogue-treatment-in-hbeag-seronegative-hepatitis-b-a-case-series
#16
Marion Muche, Ulrike Meyer, Britta Siegmund, Rajan Somasundaram, Hans-Joerg Epple
International guidelines recommend lifelong nucleos(t)ide analogue (NA) treatment in individuals with chronic hepatitis B (CHB) infection who are hepatitis B e antigen (HBeAg) seronegative, because hepatitis B surface antigen (HBsAg) seroconversion is rarely achieved. However, after terminating therapy, sustained responses and HBsAg loss have been observed. Clinical characteristics identifying persons with favorable outcomes after discontinuing NA therapy have not yet been defined. This case series describes outcomes of 6 individuals with HBeAg-seronegative CHB infection without cirrhosis and low plasma levels of HBsAg who discontinued long-term NA treatment...
July 2017: Topics in Antiviral Medicine
https://www.readbyqxmd.com/read/28820501/interleukin-armed-chimeric-antigen-receptor-modified-t-cells-for-cancer-immunotherapy
#17
REVIEW
Y Huang, D Li, D-Y Qin, H-F Gou, W Wei, Y-S Wang, Y-Q Wei, W Wang
Chimeric antigen receptor-modified T cells (CAR-T) are endowed with cytotoxic specificity to tumor cells. Although CAR-T-based cancer immunotherapy presents curable therapeutic potential for hematological malignancies, achieving substantial efficacy for solid tumors remain challenging. Researchers have exploited many strategies to enhance the anti-tumor efficacy of CAR-T cells for solid tumors, among which cytokine-armed CAR-T cells improve the proliferation, survival, homing and other properties of CAR-T cells...
August 18, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28820470/adaption-of-fmdv-asia-1-to-suspension-culture-cell-resistance-is-overcome-by-virus-capsid-alterations
#18
Veronika Dill, Bernd Hoffmann, Aline Zimmer, Martin Beer, Michael Eschbaumer
Foot-and-mouth disease virus (FMDV) causes a highly contagious disease with catastrophic economic impact for affected countries. BHK21 suspension cells are preferred for the industrial production of FMDV vaccine antigen, but not all virus strains can be successfully propagated in these cells. Serotype Asia-1 is often affected by this phenomenon. In this study, the Asia-1 strain Shamir was used to examine viral, cellular and environmental factors that contribute to resistance to cell culture infection. Cell media composition, pH and ammonium chloride concentration did not affect Asia-1 differently than other serotypes...
August 18, 2017: Viruses
https://www.readbyqxmd.com/read/28820071/antibody-fragments-as-potential-biopharmaceuticals-for-cancer-therapy-success-and-limitations
#19
Roman V Kholodenko, Daniel V Kalinovsky, Igor I Doronin, Eugene D Ponomarev, Irina V Kholodenko
Monoclonal antibodies (mAbs) are an important class of therapeutic agents approved for the therapy of many types of malignancies. However, in certain cases applications of conventional mAbs have several limitations in anticancer immunotherapy. These limitations include insufficient efficacy and adverse effects. The antigen-binding fragments of antibodies have a considerable potential to overcome the disadvantages of conventional mAbs, such as poor penetration into solid tumors and Fc-mediated bystander activation of the immune system...
August 17, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28819882/novel-immunotherapies-for-multiple-myeloma
#20
REVIEW
Mattia D'Agostino, Mario Boccadoro, Eric L Smith
PURPOSE OF REVIEW: The treatment landscape of multiple myeloma is rapidly changing; however, despite improvement in patients' survival, it still remains a largely incurable disease. One hallmark of myeloma is substantial immune dysfunction leading to an increased infection rate and the inability of immune surveillance to detect neoplastic cells. Here, we critically analyze clinical approaches to harness the immune system to overcome this defect with a focus on antibody based and adoptive cellular therapies...
August 18, 2017: Current Hematologic Malignancy Reports
keyword
keyword
42603
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"