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https://www.readbyqxmd.com/read/28821204/absence-of-cmv-viremia-in-high-grade-glioma-patients-under-low-dosage-glucocorticoid-treatment
#1
Martina Schneider, Eva-Maria Reitter, Marie-Theres Kastner, Jakob Thannesberger, Franz J J Rieder, Matthias Preusser, Christine Marosi, Christoph Steininger
No abstract text is available yet for this article.
September 1, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28817184/the-influence-of-cytomegalovirus-on-expression-of-hla-g-and-its-ligand-kir2dl4-by-human-peripheral-blood-leucocyte-subsets
#2
Zaid Albayati, Ahmed Alyami, Suliman Alomar, Derek Middleton, Laura Bonnett, Sobia Aleem, Brian F Flanagan, Stephen E Christmas
HLA-G is a non-classical class I HLA antigen, normally expressed in high levels only on extravillous cytotrophoblast. It has immunosuppressive properties in pregnancy and has also been found to be upregulated on leucocytes in viral infection. In this study, proportions of all leucocyte subsets expressing HLA-G were found to be low in healthy subjects positive or negative for cytomegalovirus (CMV). Significantly greater proportions of CD4+CD69+ and CD56+ T cells expressed HLA-G compared to other T cells. However, following stimulation with CMV antigens or intact CMV, proportions of CD4+, CD8+, CD69+ and CD56+ T cells, and also B cells expressing HLA-G were significantly increased in CMV+ subjects...
August 17, 2017: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/28816583/mammalian-cell-surface-display-for-monoclonal-antibody-based-facs-selection-of-viral-envelope-proteins
#3
Tim-Henrik Bruun, Veronika Grassmann, Benjamin Zimmer, Benedikt Asbach, David Peterhoff, Alexander Kliche, Ralf Wagner
The elicitation of broadly and efficiently neutralizing antibodies in humans by active immunization is still a major obstacle in the development of vaccines against pathogens such as the human immunodeficiency virus (HIV), influenza virus, hepatitis C virus or cytomegalovirus. Here, we describe a mammalian cell surface display and monoclonal antibody (mAb)-mediated panning technology that allows affinity-based selection of envelope (Env) variants from libraries. To this end, we established an experimental setup featuring: 1) single and site specific integration of Env to link genotype and phenotype, 2) inducible Env expression to avoid cytotoxicity effects, 3) translational coupling of Env and enhanced green fluorescent protein expression to normalize for Env protein levels, and 4) display on HEK cells to ensure native folding and mammalian glycosylation...
August 17, 2017: MAbs
https://www.readbyqxmd.com/read/28807767/a-new-clinico-biological-scoring-system-for-the-prediction-of-infection-related-mortality-and-survival-after-allogeneic-hematopoietic-stem-cell-transplantation
#4
Alessandra Forcina, Paola M V Rancoita, Magda Marcatti, Raffaella Greco, Maria Teresa Lupo-Stanghellini, Matteo Carrabba, Vincenzo Marasco, Clelia Di Serio, Massimo Bernardi, Jacopo Peccatori, Consuelo Corti, Attilio Bondanza, Fabio Ciceri
Infection-related mortality (IRM) accounts for a substantial component of non-relapse mortality (NRM) after allogeneic hematopoietic stem cell transplantation (allo-HSCT). No scores have been developed to predict IRM before transplant. Pre-transplant clinical and biochemical data were collected in a study cohort of 607 adult patients receiving allo-HSCT from January 2009 to February 2017. In a training set of 273 patients, multivariate analysis revealed that age >60 years (P=0.003), CMV host/donor serostatus different from negative/negative (P<0...
August 11, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28803228/utility-of-routine-urine-cmv-pcr-and-total-serum-igm-testing-of-small-for-gestational-age-infants-a-single-center-review
#5
Michael M Espiritu, Sean Bailey, Elena V Wachtel, Pradeep V Mally
BACKGROUND: Due to the extremely low incidence of TORCH (toxoplasmosis, rubella, CMV, herpes simplex virus) infections, diagnostic testing of all small for gestational age (SGA) infants aimed at TORCH etiologies may incur unnecessary tests and cost. OBJECTIVE: To determine the frequency of urine CMV PCR and total IgM testing among infants with birth weight <10% and the rate of test positivity. To evaluate the frequency of alternative etiologies of SGA in tested infants...
August 14, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28802185/diagnostic-yield-and-clinical-impact-of-routine-cell-culture-for-respiratory-viruses-among-children-with-a-negative-multiplex-rt-pcr-result
#6
M AlGhounaim, Y Xiao, C Caya, J Papenburg
BACKGROUND: Polymerase chain reaction (PCR) is the reference standard for respiratory virus testing. However, cell culture may still have added value in identifying viruses not detected by PCR. OBJECTIVES: We aimed to estimate the yield and clinical impact of routine respiratory virus culture among children with a negative PCR result. STUDY DESIGN: A retrospective cohort study was performed from Jan. 2013 to Sept. 2015. Respiratory samples from hospitalized or immunocompromised patients <18years old were routinely inoculated on traditional tube cell culture monolayers if they tested negative by a PCR assay for 12 respiratory viruses...
July 29, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28801056/clinical-evaluation-of-the-new-roche-platform-of-serological-and-molecular-cytomegalovirus-specific-assays-in-the-diagnosis-and-prognosis-of-congenital-cytomegalovirus-infection
#7
Angela Chiereghin, Claudia Pavia, Liliana Gabrielli, Giulia Piccirilli, Diego Squarzoni, Gabriele Turello, Dino Gibertoni, Giuliana Simonazzi, Maria Grazia Capretti, Marcello Lanari, Tiziana Lazzarotto
Clinical evaluation of the Elecsys(®) CMV IgM, IgG, IgG Avidity and COBAS AmpliPrep/COBAS TaqMan CMV (COBAS CMV) assays (Roche Diagnostics AG) in the diagnosis and prognosis of congenital CMV infection was performed. In this study, 150 preselected clinical samples (50 primary infection sera, 50 amniotic fluid [AF] and 50 newborn urine) were processed using Roche serological/molecular CMV-specific tests. Results were compared with those obtained by routine assays (comparator assays). The Elecsys(®) CMV IgM and IgG assays showed a perfect agreement (100%) with the comparator assays...
August 8, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28791125/nkg2c-memory-like-nk-cells-contribute-to-the-control-of-hiv-viremia-during-primary-infection-optiprim-anrs-147
#8
Françoise Gondois-Rey, Antoine Chéret, Samuel Granjeaud, Françoise Mallet, Ghislain Bidaut, Camille Lécuroux, Mickaël Ploquin, Michaela Müller-Trutwin, Christine Rouzioux, Véronique Avettand-Fenoël, Alessandro Moretta, Gilles Pialoux, Cécile Goujard, Laurence Meyer, Daniel Olive
Natural-killer (NK) cells are important immune effectors during a viral infection. Latent CMV infection is widely spread and was demonstrated to shape the NK cell repertoire through the NKG2C receptor. An expansion of NKG2C(+) NK cells has been reported during primary HIV infection (PHI), but their role is not known. We previously found a correlation between the maturation state of the NK cell compartment and a lower viral load by studying patients from the ANRS 147 Optiprim trial. We investigated here extensively the NKG2C(+) NK cells at the time of PHI and its evolution after 3 months of early antiretroviral therapy (combination antiretroviral therapy (cART))...
July 2017: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/28768725/immune-protection-by-a-cytomegalovirus-vaccine-vector-expressing-a-single-low-avidity-epitope
#9
Lisa Borkner, Katarzyna M Sitnik, Iryna Dekhtiarenko, Ann-Kathrin Pulm, Ronny Tao, Ingo Drexler, Luka Cicin-Sain
Experimental CMV-based vaccine vectors expressing a single MHC class I-restricted high-avidity epitope provided strong, T cell-dependent protection against viruses or tumors. In this study we tested the low-avidity epitope KCSRNRQYL, and show that a mouse CMV (MCMV) vector provides complete immune control of recombinant vaccinia virus expressing the same epitope if KCSRNRQYL is expressed within the immediate-early MCMV gene ie2 The same epitope expressed within the early M45 gene provided no protection, although MCMV vectors expressing the high-avidity epitope SSIEFARL induced protective immunity irrespective of gene expression context...
August 2, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28758211/cytomegalovirus-viral-load-in-cord-blood-and-impact-of-congenital-infection-on-markers-of-hematopoietic-progenitor-cell-potency
#10
M Susana Albano, Rodica Ciubotariu, Ludy Dobrila, Michal Tarnawski, Margely DeLeon, Chiseko Watanabe, Siddarth Krishnan, Andromachi Scaradavou, Pablo Rubinstein
BACKGROUND: The low incidence of cytomegalovirus (CMV) infection in neonates decreases the risk of viral transmission with cord blood transplantation. Cord blood donors are screened by testing the maternal sample for total antibodies to CMV. Some cord blood banks also screen cord blood for CMV-DNA. The aim of this study was to develop and validate a multiplex real-time polymerase chain reaction assay to measure CMV viral load in cord blood from asymptomatic infants with congenital CMV infection and to assess the impact of CMV infection on cord blood hematopoietic progenitor cell concentrations and colony-forming unit functionality...
July 31, 2017: Transfusion
https://www.readbyqxmd.com/read/28748879/early-clinical-manifestations-and-laboratory-findings-before-and-after-treatment-of-cytomegalovirus-infection-in-kidney-transplant-patients
#11
Wasim Ahmed Siddiqui, Issa Al Salmi, Amitabh Jha, Abbas Pakkyara, Mohammad Yasir, Faissal A M Shaheen
Cytomegalovirus (CMV) is one of the most frequently encountered opportunistic viral pathogens in kidney transplant recipients. In this study, we retrospectively reviewed all living related and unrelated kidney transplant recipients on regular follow-up from January 2006 to June 2015, who were suspected to have CMV clinically and confirmed by DNA polymerase chain reaction (PCR). CMV PCR was detected in 102 kidney transplant recipients. The median time of detection after kidney transplant was 21 months, ranging from 15 days to 84 months...
July 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28746178/assessment-of-cytomegalovirus-and-cell-mediated-immunity-for-predicting-outcomes-in-non-hiv-infected-patients-with-pneumocystis-jirovecii-pneumonia
#12
COMPARATIVE STUDY
Taeeun Kim, Se Yoon Park, Hyun-Jung Lee, Sun-Mi Kim, Heungsup Sung, Yong Pil Chong, Sang-Oh Lee, Sang-Ho Choi, Yang Soo Kim, Jun Hee Woo, Sung-Han Kim
The clinical importance of pulmonary cytomegalovirus (CMV) co-infection in patients with Pneumocystis jirovecii pneumonia (PCP) is uncertain. We therefore determined the association of CMV infection with outcomes in non-HIV-infected patients with PCP by assessing CMV viral load and CMV-specific T-cell response.We prospectively enrolled all non-HIV-infected patients with confirmed PCP, over a 2-year period. Real-time polymerase chain reaction from bronchoalveolar lavage was performed to measure CMV viral load, and CMV enzyme-linked immunospot assays of peripheral blood were used to measure CMV-specific T-cell responses...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28742877/predictors-of-mortality-in-autoimmune-disease-patients-with-concurrent-cytomegalovirus-infections-detected-by-quantitative-real-time-pcr
#13
Kyoung Yong Lee, Byung-Woo Yoo, Sung Soo Ahn, William Han Bae, Hyukmin Lee, Seung Min Jung, Sang-Won Lee, Yong-Beom Park, Jason Jungsik Song
OBJECTIVE: Cytomegaloviruses (CMV) can have a significant impact on the prognosis of immunocompromised patients. Unlike in the transplantation and AIDS fields, only a few studies on CMV infections have been published in the field of autoimmunity. In this study, we examined the clinical outcomes of CMV infections in patients with autoimmune diseases at a single tertiary medical institution. METHODS: A retrospective study was performed to identify the mortality risk factors associated with CMV infections in patients with autoimmune diseases...
2017: PloS One
https://www.readbyqxmd.com/read/28734808/-congenital-cytomegalovirus-infection-manifesting-as-neonatal-respiratory-distress-in-an-hiv-exposed-uninfected-newborn
#14
A Pham, H El Mjati, N Nathan, F Kieffer, D Mitanchez
BACKGROUND: Cytomegalovirus (CMV) is one of the most common intrauterine infections, affecting approximately 1% of all live births. There are few reports on congenital CMV infections manifesting as isolated pneumonitis. CASE REPORT: We report a case of congenital CMV with neonatal respiratory distress affecting an HIV-exposed uninfected infant. This infant required noninvasive ventilation beginning within the first 15min of life. The initial chest X-ray showed diffuse bilateral ground-glass opacifications...
July 19, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28734583/kidney-transplantation-from-hla-incompatible-live-donors-efficiency-and-outcome-of-32-patients-after-desensitisation
#15
Constantino Fernández, María Calvo, Natacha Leite, Andrés López, Tamara Ferreiro, Roi Ribera, Rocío Seijo, Ángel Alonso
Desensitisation is a procedure undergone by the recipient of a kidney transplant from a donor who is cross-match positive. The aim of this study was to present the outcomes from our hospital of kidney transplant recipients from HLA-incompatible live donors after desensitisation. We studied 32 patients aged 46±14 years with a mean fluorescence intensity (MFI) versus class I HLA of 7979±4089 and 6825±4182 MFI versus class II and relative intensity scale (RIS) of 8.9±7.6. The complement-dependent cytotoxicity (CDC) cross-matching test was positive in 18 patients, flow cytometry was positive in 7 patients and donor-specific antibodies (DEA) were detected in 7...
July 19, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28733264/the-impact-of-toxicities-on-first-year-outcomes-after-ex-vivo-cd34-selected-allogeneic-hematopoietic-cell-transplantation-in-adults-with-hematologic-malignancies
#16
Satyajit Kosuri, Diego Adrianzen Herrera, Michael Scordo, Gunjan L Shah, Christina Cho, Sean M Devlin, Molly A Maloy, Jimmy Nieves, Taylor Borrill, Dean C Carlow, Scott T Avecilla, Richard C Meagher, Richard J O'Reilly, Esperanza B Papadopoulos, Ann A Jakubowski, Guenther Koehne, Boglarka Gyurkocza, Hugo Castro-Malaspina, Brian C Shaffer, Roni Tamari, Sergio A Giralt, Miguel-Angel Perales
Factors that impact first-year morbidity and mortality in adults undergoing myeloablative allogeneic hematopoietic cell transplantation with ex vivo CD34(+) selection have not been previously reported. We assessed all toxicities ≥ grade 3 from the start of conditioning to date of death, relapse, or last contact in 200 patients during the first year after transplantation, identifying 1885 individual toxicities among 17 organ-based toxicity groups. The most prevalent toxicities in the first year were of infectious, metabolic, hematologic, oral/gastrointestinal, hepatic, cardiac, and pulmonary etiologies...
July 18, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28730648/calcineurin-inhibitor-withdrawal-or-tapering-for-kidney-transplant-recipients
#17
REVIEW
Krishna M Karpe, Girish S Talaulikar, Giles D Walters
BACKGROUND: Calcineurin inhibitors (CNI) can reduce acute transplant rejection and immediate graft loss but are associated with significant adverse effects such as hypertension and nephrotoxicity which may contribute to chronic rejection. CNI toxicity has led to numerous studies investigating CNI withdrawal and tapering strategies. Despite this, uncertainty remains about minimisation or withdrawal of CNI. OBJECTIVES: This review aimed to look at the benefits and harms of CNI tapering or withdrawal in terms of graft function and loss, incidence of acute rejection episodes, treatment-related side effects (hypertension, hyperlipidaemia) and death...
July 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28729150/dendritic-cell-recovery-impacts-outcomes-after-umbilical-cord-blood-and-sibling-donor-transplantation-for-hematologic-malignancies
#18
Waseem Touma, Claudio G Brunstein, Michael R Verneris, Qing Cao, Julie Curtsinger, Jeffrey S Miller, Veronika Bachanova
Dendritic cells (DCs) orchestrate immune responses after allogeneic hematopoietic cell transplantation (HCT). We studied the association of donor myeloid DCs (mDCs) and plasmacytoid DCs (pDCs) recovery in the landmark analysis of umbilical cord blood (UCB) and matched related donor (RD) HCT. Eighty patients (42 UCB and 38 RD recipients) with a day 100 blood sample were included in the analysis. Median age was 51 years (range, 20 to 71). Most patients had acute leukemia (50%) or lymphoma (23%) and received reduced-intensity conditioning (75%)...
July 17, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28728316/use-of-novel-oral-anticoagulant-to-treat-pulmonary-thromboembolism-in-patient-with-ulcerative-colitis-superinfected-cytomegalovirus-colitis
#19
Seok Hwan Kim, Sunhee Jang, Yegyu Sung, Jun Kyu Park, Yunjung Park, Jintak Yun, Sang Bum Kang
Crohn's disease and ulcerative colitis are the two major types of inflammatory bowel disease, and affect mainly the gastrointestinal tract but also have extraintestinal sequelae, such as arterial and venous thromboembolism. Thromboembolic complications, particularly pulmonary thromboembolism, can be life threatening and require prompt management with anticoagulants. Conventional vitamin K antagonists have been used for the treatment of thromboembolic complications, but the development of novel oral anticoagulants has shifted the paradigm...
July 25, 2017: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/28726522/steerable-induction-of-the-thymosin-%C3%A3-4-mrtf-a-pathway-via-aav-based-overexpression-induces-therapeutic-neovascularization
#20
Tilman Ziegler, Markus Kraus, Wira Husada, Florian Gesenhues, Qui Jiang, Olaf Pinkenburg, Teresa Trenkwalder, Karl-Ludwig Laugwitz, Ferdinand le Noble, Christian Weber, Christian Kupatt, Rabea Hinkel
Viral vectors have been frequently used in a variety of preclinical animal models to deliver genetic constructs into tissues. Among the vectors used, adeno-associated viral vectors (AAVs) may be targeted to specific tissues, depending on the serotype used. Moreover, they show robust expression for prolonged periods of time and have a low immunogenic potential. Furthermore, AAVs, unlike other vector systems, only display a low rate of genomic integration. However, to ensure efficient transgene production, expression is typically driven by constitutively active promoters, such as the CMV promotor...
July 20, 2017: Human Gene Therapy
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