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https://www.readbyqxmd.com/read/28635677/t-cell-manipulation-strategies-to-prevent-graft-versus-host-disease-in-haploidentical-stem-cell-transplantation
#1
REVIEW
Jayakumar Vadakekolathu, Sergio Rutella
Allogeneic haematopoietic stem cell transplantation (HSCT) from an human leukocyte antigen (HLA)-identical donor can be curative for eligible patients with non-malignant and malignant haematological disorders. HSCT from alternative donor sources, such as HLA-mismatched haploidentical donors, is increasingly considered as a viable therapeutic option for patients lacking HLA-matched donors. Initial attempts at haploidentical HSCT were associated with vigorous bidirectional alloreactivity, leading to unacceptably high rates of graft rejection and graft-versus-host disease (GVHD)...
June 21, 2017: Biomedicines
https://www.readbyqxmd.com/read/28635624/effects-of-type-1-diabetes-risk-alleles-on-immune-cell-gene-expression
#2
REVIEW
Ramesh Ram, Grant Morahan
Genetic studies have identified 61 variants associated with the risk of developing Type 1 Diabetes (T1D). The functions of most of the non-HLA (Human Leukocyte Antigen) genetic variants remain unknown. We found that only 16 of these risk variants could potentially be linked to a protein-coding change. Therefore, we investigated whether these variants affected susceptibility by regulating changes in gene expression. To do so, we examined whole transcriptome profiles of 600 samples from the Type 1 Diabetes Genetics Consortium (T1DGC)...
June 21, 2017: Genes
https://www.readbyqxmd.com/read/28635590/imbalance-between-innate-antiviral-and-pro-inflammatory-immune-responses-may-contribute-to-different-outcomes-involving-low-and-highly-pathogenic-avian-influenza-h5n3-infections-in-chickens
#3
John Pasick, Sandra Diederich, Yohannes Berhane, Carissa Embury-Hyatt, Wanhong Xu
In order to gain further insight into the early virus-host interactions associated with highly pathogenic avian influenza virus infections in chickens, genome-wide expression profiling of chicken lung and brain was carried out at 24 and 72 h post-inoculation (h p.i.). For this purpose two recombinant H5N3 viruses were utilized, each possessing a polybasic HA0 cleavage site but differing in pathogenicity. The original rH5N3 P0 virus, which has a low-pathogenic phenotype, was passaged six times through chickens to give rise to the derivative rH5N3 P6 virus, which is highly pathogenic (Diederich S, Berhane Y, Embury-Hyatt C, Hisanaga T, Handel K et al...
June 21, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28635517/a-primer-for-oncoimmunology-immunooncology
#4
Brad Bolon, Famke Aeffner
Oncoimmunology (or immunooncology) is a burgeoning specialty of precision ("personalized") medicine designed to heighten the antitumor response of the immune system against molecules expressed excessively or only by tumor cells. This focus is necessary, as cancers are polyclonal tissues comprised of antigenically heterogeneous cells, the exact composition of which is shaped by the balance between antitumor immunity and tumor-promoting inflammation. Key targets include enhancing immune system (especially T cell) reactivity, inhibiting immune checkpoints, and promoting tumor cytolysis...
January 1, 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/28635382/white-cell-and-platelet-content-affects-the-release-of-bioactive-factors-in-different-blood-derived-scaffolds
#5
S Cabaro, V D'Esposito, R Gasparro, F Borriello, F Granata, G Mosca, F Passaretti, J C Sammartino, F Riccitiello, F Beguinot, P Formisano, G Sammartino
Platelet-derived factors are biomaterials that might accelerate healing process in oral, maxillofacial, and several other applications. Release of specific factors by platelet concentrates is critical to achieving a successful outcome. Here, we have shown that platelet-rich fibrin (PRF) clots were beneficial sources of leukocytes, which may directly affect the release of chemokines and growth factors. When compared with the standard leukocyte-PRF (L-PRF), the experimental low-force modified procedure [defined as advanced-PRF (A-PRF)] entrapped the same content of viable leukocytes, released a similar amount of inflammatory cytokines, but secreted 3-, 1...
June 21, 2017: Platelets
https://www.readbyqxmd.com/read/28634794/evaluation-in-situ-of-genotoxicity-and-stress-in-south-american-common-toad-rhinella-arenarum-in-environments-related-to-fluorite-mine
#6
Favio E Pollo, Pablo R Grenat, Zulma A Salinas, Manuel A Otero, Nancy E Salas, Adolfo L Martino
Little attention has been paid to the impact of wastewater generated by mining activities on fluoride. In this study, we evaluated the hematology responses of common South American toad Rhinella arenarum inhabiting natural and artificial environments associated with a fluorite mine from central Argentina. We analyzed three sampling stations associated with the fluorite mine: (I) Los Cerros Negros stream (CN), which runs on granitic rock with a high fluorite content; (II) Los Vallecitos stream (LV), which runs on metamorphic rock with low fluorite content; and (III) artificial decantation ponds (DP) containing sediments produced by fluorite flotation process...
June 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28634421/the-role-of-von-willebrand-factor-in-vascular-inflammation-from-pathogenesis-to-targeted-therapy
#7
REVIEW
Felice Gragnano, Simona Sperlongano, Enrica Golia, Francesco Natale, Renatomaria Bianchi, Mario Crisci, Fabio Fimiani, Ivana Pariggiano, Vincenzo Diana, Andreina Carbone, Arturo Cesaro, Claudia Concilio, Giuseppe Limongelli, Mariagiovanna Russo, Paolo Calabrò
Beyond its role in hemostasis, von Willebrand factor (VWF) is an emerging mediator of vascular inflammation. Recent studies highlight the involvement of VWF and its regulator, ADAMTS13, in mechanisms that underlie vascular inflammation and immunothrombosis, like leukocyte rolling, adhesion, and extravasation; vascular permeability; ischemia/reperfusion injury; complements activation; and NETosis. The VWF/ADAMTS13 axis is implicated in the pathogenesis of atherosclerosis, promoting plaque formation and inflammation through macrophage and neutrophil recruitment in inflamed lesions...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28633555/glutamine-administration-in-early-or-late-septic-phase-downregulates-lymphocyte-pd-1-pd-l1-expression-and-the-inflammatory-response-in-mice-with-polymicrobial-sepsis
#8
Ya-Mei Hu, Yuan-Chin Hsiung, Man-Hui Pai, Sung-Ling Yeh
BACKGROUND: Sepsis is a severe inflammatory response to infection. Excessive compensation to inflammation leads to dysregulated immune response that ultimately results in organ damage and lethality of sepsis. This study administered glutamine (GLN) in the early or late phase of sepsis to investigate its effects on regulating leukocyte programmed cell death 1 (PD-1) and its ligand (programmed cell death ligand 1 [PD-L1]) expression, macrophage function, inflammation, and acute kidney injury in sepsis...
March 1, 2017: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28633385/timiner-ngs-data-mining-pipeline-for-cancer-immunology-and-immunotherapy
#9
Elias Tappeiner, Francesca Finotello, Pornpimol Charoentong, Clemens Mayer, Dietmar Rieder, Zlatko Trajanoski
Summary: Recently, a number of powerful computational tools for dissecting tumor-immune cell interactions from next-generation sequencing (NGS) data have been developed. However, the assembly of analytical pipelines and execution of multi-step workflows are laborious and involve a large number of intermediate steps with many dependencies and parameter settings. Here we present TIminer, an easy-to-use computational pipeline for mining tumor-immune cell interactions from NGS data. TIminer enables integrative immunogenomic analyses, including: human leukocyte antigens typing, neoantigen prediction, characterization of immune infiltrates, and quantification of tumor immunogenicity...
June 15, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28633072/roles-of-serum-in-innate-immune-responses-of-human-leukocytes-to-synthetic-lipopeptide
#10
Terukazu Sanui, Masaaki Takeshita, Takao Fukuda, Urara Tanaka, Rehab Alshargabi, Yoshitomi Aida, Fusanori Nishimura
Tripalmitoyl-S-glyceryl-l-Cys-Ser-(Lys)4 (Pam3CSK4) is a highly conserved molecular motif found in various classes of lipoproteins. The requirement for leukocyte to respond to synthetic Pam3CSK4 were studied. Pam3CSK4 primed neutrophils for a respiratory burst in a serum-dependent manner. Pam3CSK4 upregulated CD11b, CD14, and cytochrome b558, and downregulated Leu-8. Treatment of neutrophils with anti-CD14 antibodies and treatment of serum with anti-LPS binding protein (LBP) antibodies resulted in the inhibition of priming for respiratory burst by Pam3CSK4...
June 17, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28632339/polymorphisms-of-human-leukocyte-antigen-b-27-on-clinical-phenotype-of-spondyloarthritis-in-chinese
#11
Hai-Jun Ma, Qing-Feng Yin, Yun Liu, Yin Wu, Tie-Chui Zhu, Ming-Hao Guo
BACKGROUND: In recent years, an ever-increasing number of alleles of human leukocyte antigen B*27 (HLA-B*27) have been identified. This study aimed to establish an updated method for HLA-B*27 subtyping, and to investigate the impact of HLA-B*27 polymorphisms on the clinical phenotype of spondyloarthritis (SpA). METHODS: Overall, 184 SpA patients were recruited for analyzing diversity of HLA-B*27 via an updated high-resolution polymerase chain reaction amplification with sequence specific primers (PCR-SSP)...
June 20, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28631630/diagnostic-value-of-immunohistochemistry-staining-of-bcl-2-cd34-cd20-and-cd3-for-distinction-between-discoid-lupus-erythematosus-and-lichen-planus-in-the-skin
#12
Mazaher Ramezani, Bita-Sadat Hashemi, Sedigheh Khazaei, Mansour Rezaei, Ali Ebrahimi, Masoud Sadeghi
BACKGROUND: Cluster of differentiation (CD) markers is a classification system for monoclonal antibodies against cell surface molecules on leukocytes and antigens from other cells. AIMS: The aim of this study is to evaluate immunohistochemical markers in patients with discoid lupus erythematosus (DLE) and lichen planus (LP) and correlation of these markers in two groups and with the normal group in the West of Iran. SETTINGS AND DESIGN: Analytical cross-sectional study...
April 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28631302/l-hcy-induced-cathepsin-v-mediates-the-vascular-endothelial-inflammation-in-hyperhomocysteinemia
#13
Yi-Ping Leng, Ye-Shuo Ma, Xiao-Gang Li, Rui-Fang Chen, Ping-Yu Zeng, Xiao-Hui Li, Cheng-Feng Qiu, Ya-Pei Li, Zhen Zhang, Alex F Chen
BACKGROUND AND PURPOSE: Vascular inflammation, including the expression of inflammatory cytokines in endothelial cells, plays a critical role in hyperhomocysteinemia-associated vascular diseases. Cathepsin V, specifically expressed in humans, is involved in vascular diseases through its elastolytic and collagenolytic activities. The aim of this study was to determine the effects of cathepsin V on the L-homocysteine (L-Hcy)-induced vascular inflammation. EXPERIMENTAL APPROACH: A high methionine diet-induced hyperhomocysteinemic mice model was used to assess the cathepsin V expression and vascular inflammation...
June 20, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28631163/evaluation-of-streck-bct-and-paxgene-stabilised-blood-collection-tubes-for-cell-free-circulating-dna-studies-in-plasma
#14
Kristina Warton, Nicole L Yuwono, Mark J Cowley, Mark J McCabe, Alwin So, Caroline E Ford
INTRODUCTION: Blood samples for studies of circulating DNA in disease are often collected in clinical settings where prompt processing of samples is not possible. In order to avoid problems associated with leukocyte lysis after prolonged blood storage, stabilised blood tubes have been developed containing preservatives that prevent cell lysis. We evaluated Streck BCT tubes and PAXgene ccfDNA tubes, as well as standard EDTA blood collection tubes, in terms of DNA yield and fragment size...
June 19, 2017: Molecular Diagnosis & Therapy
https://www.readbyqxmd.com/read/28630460/oxidative-and-endoplasmic-reticulum-stress-is-impaired-in-leukocytes-from-metabolically-unhealthy-vs-healthy-obese-individuals
#15
C Bañuls, S Rovira-Llopis, S Lopez-Domenech, N Diaz-Morales, A Blas-Garcia, S Veses, C Morillas, V M Victor, M Rocha, A Hernandez-Mijares
BACKGROUND: Oxidative stress and inflammation are related to obesity, but the influence of metabolic disturbances on these parameters and their relationship with endoplasmic reticulum (ER) stress is unknown. Therefore, this study was performed to evaluate whether metabolic profile influences ER and oxidative stress in an obese population with/without comorbidities. SUBJECTS AND METHODS: A total of 113 obese patients were enrolled in the study; 29 were metabolically healthy (MHO), 53 were metabolically abnormal (MAO), and 31 had type 2 diabetes (MADO)...
June 20, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28630379/the-association-between-telomere-length-and-mortality-in-bangladesh
#16
Samantha G Dean, Chenan Zhang, Jianjun Gao, Shantanu Roy, Justin Shinkle, Mekala Sabarinathan, Maria Argos, Lin Tong, Alauddin Ahmed, Md Tariqul Islam, Tariqul Islam, Muhammad Rakibuz-Zaman, Golam Sarwar, Hasan Shahriar, Mahfuzar Rahman, Md Yunus, Joseph H Graziano, Lin S Chen, Farzana Jasmine, Muhammad G Kibriya, Habibul Ahsan, Brandon L Pierce
Telomeres are tandem repeat sequences at the end of chromosomes that bind proteins to protect chromosome ends. Telomeres shorten with age, and shorter leukocyte telomere length (TL) has been associated with overall mortality in numerous studies. However, this association has not been tested in populations outside of Europe and the U.S. We assessed the association between TL and subsequent mortality using data on 744 mortality cases and 761 age-/sex-matched controls sampled from >27,000 participants from three longitudinal Bangladeshi cohorts: Health Effects of Arsenic Longitudinal Study (HEALS), HEALS Expansion (HEALS-E), and Bangladesh Vitamin E and Selenium Trial (BEST)...
June 15, 2017: Aging
https://www.readbyqxmd.com/read/28630067/sipa-activation-of-caspase-3-is-a-decisive-mediator-of-host-cell-survival-at-early-stages-of-salmonella-typhimurium-infection
#17
Anne McIntosh, Lynsey M Meikle, Michael Ormsby, Beth A McCormick, John M Christie, James M Brewer, Mark Roberts, Daniel M Wall
Salmonella invasion protein A (SipA) is a dual function effector protein that plays roles in both actin polymerization and caspase-3 activation in intestinal epithelial cells. To date its function in other cell types has remained largely unknown despite its expression in multiple cell types and its extracellular secretion during infection. Here we show that in macrophages SipA induces increased caspase-3 activation early in infection. This activation required a threshold level of SipA linked to multiplicity of infection and may be a limiting factor controlling bacterial numbers in infected macrophages...
June 19, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28630015/characterization-of-japanese-flounder-paralichthys-olivaceus-caspase1-involved-in-extracellular-atp-mediated-immune-signaling-in-fish
#18
Shuo Li, Weijiao Peng, Jiafang Li, Gaixiang Hao, Xuyun Geng, Jinsheng Sun
Caspase1 is a member of inflammatory Caspases that play important roles in the innate immune system. Although several teleost caspase1 genes have been identified, their partner proteins and implication in extracellular ATP-mediated immune signaling in fish are still very limited. Here we identified and characterized a caspase1 gene, named JfCaspase1, from Japanese flounder Paralichthys olivaceus. JfCaspase1 mRNA was constitutively expressed in all examined normal tissues with high expression in skin and gills and moderate expression in the enriched Japanese flounder head kidney macrophages (HKMs) and peripheral blood leukocytes (PBLs)...
June 16, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28629959/glycemic-control-and-muscle-damage-in-3-athletes-with-type-1-diabetes-during-a-successful-performance-in-a-relay-ultramarathon-a-case-report
#19
Taisa Belli, Denise V de Macedo, Pedro P M Scariot, Gustavo G de Araújo, Ivan G M Dos Reis, Fernanda L Lazarim, Lázaro A S Nunes, René Brenzikofer, Claudio A Gobatto
Ultramarathon races are fairly demanding and impose substantial physiological stress on healthy athletes. These competitions may thus be considerably more challenging for individuals with diabetes. This case study aims to describe glycemic control, muscle damage, inflammation, and renal function in 3 athletes with type 1 diabetes during a successful performance in a relay ultramarathon. The team completed the race in 29 hours and 28 minutes, earning third place. The total distance covered by each athlete was 68...
June 16, 2017: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/28629771/chemokines-play-complex-roles-in-cerebral-ischemia
#20
REVIEW
Chen Chen, Shi-Feng Chu, Dan-Dan Liu, Zhao Zhang, Ling-Lei Kong, Xin Zhou, Nai-Hong Chen
Ischemic stroke (IS) is a disease caused by deficiency of blood and oxygen in focal or complete brain, followed by inflammation cascade and other pathological reactions, which finally lead to irreversible damage to the cerebrum. For the inflammation is a key progress at the initiation of ischemia and poststroke, and chemokines work as vital cytokines in inflammation, we focus the roles of chemokines in IS. Studies have shown cerebral ischemia is associated with marked induction of both CXC and CC chemokines which resulting in extensive leukocyte infiltration in the ischemic brain, and neutrophil infiltration may increase cerebral edema inducing injury in the ischemic area...
June 16, 2017: Neurochemistry International
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