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https://www.readbyqxmd.com/read/29776614/characterisation-of-peripheral-blood-mononuclear-cell-populations-in-periparturient-dairy-cows-that-develop-metritis
#1
John J Bromfield, Meghan M Watt, Sossi M Iacovides
Bacterial contamination of the uterus following calving is ubiquitous in the dairy cow, 40% of cows develop postpartum uterine infection, including metritis. While predisposing factors like twinning and dystocia are associated with metritis, it is unclear why some cows remain healthy following calving and others develop uterine infection, negatively impacting animal health, milk production and economic return. Here, we profiled peripheral blood mononuclear cells of cows before calving and during postpartum metritis...
June 2018: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/29776389/what-is-the-impact-of-human-leukocyte-antigen-mismatching-on-graft-survival-and-mortality-in-renal-transplantation-a-meta-analysis-of-23-cohort-studies-involving-486-608-recipients
#2
Xinmiao Shi, Jicheng Lv, Wenke Han, Xuhui Zhong, Xinfang Xie, Baige Su, Jie Ding
BACKGROUND: The magnitude effects of human leukocyte antigen (HLA) mismatching on post-transplant outcomes of kidney transplantation remain controversial. We aim to quantitatively assess the associations of HLA mismatching with graft survival and mortality in adult kidney transplantation. METHODS: We searched PubMed, EMBASE and the Cochrane Library from their inception to December, 2016. Priori clinical outcomes were overall graft failure, death-censored graft failure and all-cause mortality...
May 18, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29770138/ny-eso-1-based-immunotherapy-of-cancer-current-perspectives
#3
REVIEW
Remy Thomas, Ghaneya Al-Khadairi, Jessica Roelands, Wouter Hendrickx, Said Dermime, Davide Bedognetti, Julie Decock
NY-ESO-1 or New York esophageal squamous cell carcinoma 1 is a well-known cancer-testis antigen (CTAs) with re-expression in numerous cancer types. Its ability to elicit spontaneous humoral and cellular immune responses, together with its restricted expression pattern, have rendered it a good candidate target for cancer immunotherapy. In this review, we provide background information on NY-ESO-1 expression and function in normal and cancerous tissues. Furthermore, NY-ESO-1-specific immune responses have been observed in various cancer types; however, their utility as biomarkers are not well determined...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29758480/analytical-and-clinical-performance-of-progesterone-receptor-antibodies-in-breast-cancer
#4
Benjamin C Calhoun, Brian Mosteller, Daniel Warren, Margie Smith, J Jordi Rowe, Christopher P Lanigan, Karen C Mrazeck, Espen Walker, Amy Hanlon Newell, Raymond Jones
OBJECTIVE: Comparison of analytical and immunohistochemical performance of progesterone receptor (PR) antibodies with correlation to recurrence of invasive breast cancer treated with endocrine therapy. METHODS: The binding-affinity kinetics of PR clones 1E2, 1A6, 16 and 636 were compared using synthetic peptides derived from identified epitopes on a Biacore T200. A cohort of 351 cases (Hormone Receptor (HR)+/HER2-) were stained for PR expression with immunohistochemistry (IHC) and scored according to ASCO/CAP criteria...
February 27, 2018: Annals of Diagnostic Pathology
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
#5
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/29739909/a-high-frequency-of-hiv-specific-circulating-follicular-helper-t-cells-is-associated-with-preserved-memory-b-cell-responses-in-hiv-controllers
#6
M Claireaux, M Galperin, D Benati, A Nouël, M Mukhopadhyay, J Klingler, P de Truchis, D Zucman, S Hendou, F Boufassa, C Moog, O Lambotte, L A Chakrabarti
Follicular helper T cells (Tfh) play an essential role in the affinity maturation of the antibody response by providing help to B cells. To determine whether this CD4+ T cell subset may contribute to the spontaneous control of HIV infection, we analyzed the phenotype and function of circulating Tfh (cTfh) in patients from the ANRS CO21 CODEX cohort who naturally controlled HIV-1 replication to undetectable levels and compared them to treated patients with similarly low viral loads. HIV-specific cTfh (Tet+ ), detected by Gag-major histocompatibility complex class II (MHC-II) tetramer labeling in the CD45RA- CXCR5+ CD4+ T cell population, proved more frequent in the controller group ( P = 0...
May 8, 2018: MBio
https://www.readbyqxmd.com/read/29738637/risk-of-hbv-reactivation-with-direct-acting-antivirals-against-hcv-a-cohort-study-from-egypt-and-meta-analysis-of-published-data
#7
Mohamed El Kassas, Yusuke Shimakawa, Zainab Ali-Eldin, Anna-Louise Funk, Mohamed Naguib Wifi, Samy Zaky, Fathiya El-Raey, Gamal Esmat, Arnaud Fontanet
BACKGROUND & AIMS: Hepatitis B virus (HBV) reactivation in chronic hepatitis C (CHC) patients treated with direct acting antivirals (DAAs) became an issue. However, its frequency has been poorly estimated, due to the varying definitions used and evaluation of heterogeneous study populations, including those concurrently treated for HBV. METHODS: We prospectively followed HBV surface antigen (HBsAg)-positive Egyptians undergoing interferon-free DAAs, to estimate the risk of HBV reactivation and HBV-related hepatitis...
May 8, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29729992/proteomics-functional-characterization-and-antivenom-neutralization-of-the-venom-of-pakistani-russell-s-viper-daboia-russelii-from-the-wild
#8
Tasnim Faisal, Kae Yi Tan, Si Mui Sim, Naeem Quraishi, Nget Hong Tan, Choo Hock Tan
The venom proteome of wild Pakistani Russell's viper (Daboia russelii) was investigated through nano-ESI-LCMS/MS of the reverse-phase HPLC fractions. A total of 54 venom proteins were identified and clustered into 11 protein families. Phospholipase A2 (PLA2 , 63.8%) and Kunitz-type serine protease inhibitor (KSPI, 16.0%) were most abundant, followed by snake venom serine protease (SVSP, 5.5%, mainly Factor V activating enzyme), vascular endothelial growth factor (VEGF, 4.3%), snake venom metalloprotease (SVMP, 2...
May 3, 2018: Journal of Proteomics
https://www.readbyqxmd.com/read/29700043/enhancement-of-red-blood-cell-transfusion-compatibility-using-crispr-mediated-erythroblast-gene-editing
#9
Joseph Hawksworth, Timothy J Satchwell, Marjolein Meinders, Deborah E Daniels, Fiona Regan, Nicole M Thornton, Marieangela C Wilson, Johannes Gg Dobbe, Geert J Streekstra, Kongtana Trakarnsanga, Kate J Heesom, David J Anstee, Jan Frayne, Ashley M Toye
Regular blood transfusion is the cornerstone of care for patients with red blood cell (RBC) disorders such as thalassaemia or sickle-cell disease. With repeated transfusion, alloimmunisation often occurs due to incompatibility at the level of minor blood group antigens. We use CRISPR-mediated genome editing of an immortalised human erythroblast cell line (BEL-A) to generate multiple enucleation competent cell lines deficient in individual blood groups. Edits are combined to generate a single cell line deficient in multiple antigens responsible for the most common transfusion incompatibilities: ABO (Bombay phenotype), Rh (Rhnull ), Kell ( K 0 ), Duffy (Duffynull ), GPB (S- s- U- )...
April 26, 2018: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/29699851/blockade-of-adhesion-molecule-lymphocyte-function-associated-antigen-1-improves-long-term-heart-allograft-survival-in-mixed-chimeras
#10
Nina Pilat, Philipp Sabler, Christoph Klaus, Benedikt Mahr, Lukas Unger, Karin Hock, Mario Wiletel, Christoph Schwarz, Ivan Kristo, Heinz Regele, Thomas Wekerle
BACKGROUND: The mixed chimerism approach for intentional induction of donor-specific tolerance was shown to be successful in various models from mice to humans. For transplant patients, the approach would obviate the need for long-term immunosuppression and associated side effects; moreover, it would preclude the risk of late graft loss due to chronic rejection. Widespread clinical application is hindered by toxicities related to recipient pre-conditioning. Herein we aimed to investigate a clinically relevant protocol for tolerance induction to cardiac allografts, sparing CD40 blockade or T-cell depletion...
March 30, 2018: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/29695620/interlaboratory-comparison-of-the-pneumococcal-multiplex-opsonophagocytic-assays-and-their-level-of-agreement-for-determination-of-antibody-function-in-pediatric-sera
#11
A Balloch, L Roalfe, N Ekstrom, C D Nguyen, L Spry, R A Marimla, P V Licciardi, D Goldblatt, E K Mulholland
Opsonophagocytic assays are used to measure functional antibodies important in protection against pneumococcal capsular antigens. There have been efforts to standardize these methods, as the assays are commonly used to measure vaccine immunogenicity. We report here the results from three international laboratories using their own methods, based on the recommended WHO standard method. We tested 30 pediatric sera, before and after administration of a 13-valent conjugate pneumococcal vaccine, against all 13 serotypes...
April 25, 2018: MSphere
https://www.readbyqxmd.com/read/29688735/evaluation-and-phylogenetic-analysis-of-regular-rabies-virus-vaccine-strains
#12
Mehdi Ajorloo, Habibollah Mirzaei, Yasaman Sadeghi, Nastaran Tarban, Saber Soltani, Fatemeh Sadat Mohammadi, Pardis Davarinejad, Maedeh Amiri Roudy, Hamid Reza Jahantigh, Kosar Abouhamzeh, Mina Mohammadhosayni, Hadi Razavi Nikoo, Ashkan Alamdary, Mehdi Norouzi
BACKGROUND: This study aimed to evaluate Rabies virus vaccine strains. The obtained results may be helpful for vaccine producers and researchers to compare the strains with wild type and other vaccine strains and select the correct strain to challenge their products. METHODS: Fourteen rabies virus vaccine strains were compared with each other. The full genomes of the selected strains were taken from the GenBank and the N, P and G genes were labeled. The major and minor antigenic sites of these sequences were identified and contrasted with each other...
March 1, 2018: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/29688415/hepatitis-b-virus-immunisation-and-neonatal-acquisition-of-persistent-infection-in-england-and-wales
#13
Shoshanna May, Sema Mandal, Philip Keel, Becky Haywood, Siew Lin Ngui, Mary Ramsay, Richard S Tedder, Samreen Ijaz
Background: It is believed that between 2 and 5% of infants born to HBV-infected mothers at a high risk of perinatal transmission will become persistently infected in spite of immunisation starting at birth. We investigated factors associated with breakthrough infections. Methods: Sixty nine samples from HBV-infected infants born between 2003 and 2015 were tested for HBV serological and molecular markers. Sequencing and epitope phenotyping were used to investigate alterations in HBsAg sequence and antigenicity in infants and in mothers known to have transmitted and not to have transmitted virus to their infants...
April 24, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29687886/false-negative-compatible-antiglobulin-crossmatches-in-samples-with-alloantibodies-to-cognate-red-blood-cell-antigens
#14
Christian P Nixon, Stephanie L Krohto, Joseph D Sweeney
BACKGROUND: Patient samples showing a positive indirect antiglobulin test are further tested to identify alloantibody specificity using a panel of phenotypically characterized group O reagent red blood cells (RBCs). Donor RBCs phenotypically negative for the antibody specificity are then serologically crossmatched using an antiglobulin reagent. This latter test is performed to identify any incompatibility due to the presence of undetected minor blood group antibodies and considered an important step in patient safety...
April 24, 2018: Transfusion
https://www.readbyqxmd.com/read/29669947/anti-cd19-car-t-cells-with-high-dose-melphalan-and-autologous-stem-cell-transplantation-for-refractory-multiple-myeloma
#15
Alfred L Garfall, Edward A Stadtmauer, Wei-Ting Hwang, Simon F Lacey, Jan Joseph Melenhorst, Maria Krevvata, Martin P Carroll, William H Matsui, Qiuju Wang, Madhav V Dhodapkar, Kavita Dhodapkar, Rituparna Das, Dan T Vogl, Brendan M Weiss, Adam D Cohen, Patricia A Mangan, Emily C Ayers, Selene Nunez-Cruz, Irina Kulikovskaya, Megan M Davis, Anne Lamontagne, Karen Dengel, Naseem Ds Kerr, Regina M Young, Donald L Siegel, Bruce L Levine, Michael C Milone, Marcela V Maus, Carl H June
BACKGROUND: Multiple myeloma is usually fatal due to serial relapses that become progressively refractory to therapy. CD19 is typically absent on the dominant multiple myeloma cell population but may be present on minor subsets with unique myeloma-propagating properties. To target myeloma-propagating cells, we clinically evaluated autologous T cells transduced with a chimeric antigen receptor (CAR) against CD19 (CTL019). METHODS: Subjects received CTL019 following salvage high-dose melphalan and autologous stem cell transplantation (ASCT)...
April 19, 2018: JCI Insight
https://www.readbyqxmd.com/read/29664198/hemoglobin-a-clearance-in-children-with-sickle-cell-anemia-on-chronic-transfusion-therapy
#16
Marianne E M Yee, Cassandra D Josephson, Anne M Winkler, Jennifer Webb, Naomi L C Luban, Traci Leong, Sean R Stowell, John D Roback, Ross M Fasano
BACKGROUND: Chronic transfusion therapy for sickle cell anemia reduces disease complications by diluting sickle-erythrocytes with hemoglobin A (HbA)-containing erythrocytes and suppressing erythropoiesis. Minor antigen mismatches may result in alloimmunization, but it is unknown if antigen mismatches or recipient characteristics influence HbA clearance posttransfusion. STUDY DESIGN AND METHODS: Children with sickle cell anemia on chronic transfusion therapy were followed prospectively for 12 months...
April 17, 2018: Transfusion
https://www.readbyqxmd.com/read/29661611/nasal-polyposis-or-chronic-olfactory-rhinitis
#17
R Jankowski, C Rumeau, P Gallet, D T Nguyen
The concept of chronic rhinosinusitis with or without polyps is founded on the structural and functional unicity of the pituitary mucosa and its united response to environmental aggression by allergens, viruses, bacteria, pollution, etc. The present review sets this concept against the evo-devo three-nose theory, in which nasal polyposis is distinguished as specific to the olfactory nose and in particular to the non-olfactory mucosa of the ethmoid, which is considered to be not a sinus but rather the skull-base bone harboring the olfactory mucosa...
April 13, 2018: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/29656087/molecular-features-of-hepatitis-e-virus-circulation-in-environmental-and-human-samples
#18
H Fenaux, M Chassaing, S Berger, H Jeulin, A Gentilhomme, M Bensenane, J P Bronowicki, C Gantzer, I Bertrand, E Schvoerer
BACKGROUND AND OBJECTIVES: Hepatitis E virus (HEV) is emerging but its circulation between humans and the environment remains misunderstood. HEV ORF2 gene encodes the capsid playing a key role in viral interactions with surfaces, ORF3 products are involved in the viral cycle. Our aim was to study the molecular characteristics of ORF2 and ORF3 which could favor HEV fitness in patients and the environment. STUDY DESIGN: Samples from 69 patients with hepatitis (blood/stools), 20 urban wastewaters, 20 effluents of a pig slaughterhouse, 22 farm pigs (stools), 20 wild boars (liver/stools) were collected in North-Eastern France...
April 5, 2018: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29629487/quasispecies-characters-of-hepatitis-b-virus-in-immunoprophylaxis-failure-infants
#19
Xin Wang, Wanyan Deng, Keli Qian, Haijun Deng, Yong Huang, Zeng Tu, Ailong Huang, Quanxin Long
Hepatitis B vaccination prevents 80-95% of transmission and reduces the incidence of HBV in children. The variations in the a determinant of HBV surface antigen (HBsAg) have been reported to be the most prevalent cause for vaccine or antibody escape. There is a conflicting evidence on as to whether escape mutants arise de novo in infected infants or whether the mutants, that have preexisted maternally, subsequently undergo selective replication in the infant under immune pressure. Here, we report that nearly 65% (55 of 85) vaccination failure in child patients has no amino acid substitution in a determinant as seen by Sanger sequencing...
April 8, 2018: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29628793/challenging-tumour-immunological-techniques-that-help-to-track-cancer-stem-cells-in-malignant-melanomas-and-other-solid-tumours
#20
Beatrix Kotlan, Vanda Plotar, Klara Eles, Szabolcs Horvath, Timea Balatoni, Orsolya Csuka, Mihaly Újhelyi, Ákos Sávolt, Andras Szollar, Istvan Vamosi-Nagy, Laszlo Toth, Emil Farkas, Jozsef Toth, Miklos Kasler, Gabriella Liszkay
Aim of the study: The arsenal of questions and answers about the minor cancer initiating cancer stem cell (CSC) population put responsible for cancer invasiveness and metastases, has left with an unsolved puzzle. Specific aims of a complex project were partly focused on revealing new biomarkers of cancer. We designed and set up novel techniques to facilitate the detection of cancerous cells. Materials and methods: As a novel approach, we investigated B cells infiltrating breast carcinomas and melanomas (TIL-B) in terms of their tumour antigen binding potential...
March 2018: Contemporary Oncology Współczesna Onkologia
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