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Adaptive immunity

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https://www.readbyqxmd.com/read/28548962/prognostic-implication-of-leucocyte-subpopulations-in-diffuse-large-b-cell-lymphoma
#1
Xiao Han, Jing Ruan, Wei Zhang, Daobin Zhou, Dongsheng Xu, Qiang Pei, Mingqi Ouyang, Mengxuan Zuo
BACKGROUND: Recent studies have suggested that variables related to host adaptive immunity and the tumor microenvironment may predict the outcome in patients with non-Hodgkin's lymphoma. This study was undertaken to determine the prognostic value of peripheral blood leucocyte subpopulations in diffuse large-B-cell lymphoma patients. METHODS: We prospectively analyzed the 16 leukocyte subpopulations using Cytodiff flow cytometric technique in a cohort of 45 diffuse large-B-cell lymphoma patients at a single institution between February and December 2014...
May 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28548248/the-emerging-role-of-interleukin-37-in-cardiovascular-diseases
#2
REVIEW
Xinyu Zhuang, Bangwei Wu, Jian Li, Haiming Shi, Bo Jin, Xinping Luo
INTRODUCTION: Interleukin (IL)-37 is a newly identified member of the IL-1 family, and shows a growing role in a variety of diseases. This review aims at summarizing and discussing the role of IL-37 in cardiovascular diseases. METHODS: Data for this review were identified by searches of MEDLINE, Embase, and PubMed using appropriate search terms. RESULTS: IL-37 is a newly identified cytokine belonging to the IL-1 family and is expressed in inflammatory immune cells and several parenchymal cells...
May 26, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28547381/purinergic-signalling-links-mechanical-breath-profile-and-alveolar-mechanics-with-the-pro-inflammatory-innate-immune-response-causing-ventilation-induced-lung-injury
#3
REVIEW
Djo Hasan, Paul Blankman, Gary F Nieman
Severe pulmonary infection or vigorous cyclic deformation of the alveolar epithelial type I (AT I) cells by mechanical ventilation leads to massive extracellular ATP release. High levels of extracellular ATP saturate the ATP hydrolysis enzymes CD39 and CD73 resulting in persistent high ATP levels despite the conversion to adenosine. Above a certain level, extracellular ATP molecules act as danger-associated molecular patterns (DAMPs) and activate the pro-inflammatory response of the innate immunity through purinergic receptors on the surface of the immune cells...
May 26, 2017: Purinergic Signalling
https://www.readbyqxmd.com/read/28546901/macrophages-as-effectors-of-acute-and-chronic-allograft-injury
#4
Yianzhu Liu, Malgorzata Kloc, Xian C Li
Organ transplants give a second chance of life to patients with end-stage organ failure. However, the immuno-logical barriers prove to be very challenging to overcome and graft rejection remains a major hurdle to long-term transplant survival. For decades, adaptive immunity has been the focus of studies, primarily based on the belief that T cells are necessary and sufficient for rejection. With better-developed immunosuppressive drugs and protocols that effectively control adaptive cells, innate immune cells have emerged as key effector cells in triggering graft injury and have therefore attracted much recent attention...
December 2016: Current Transplantation Reports
https://www.readbyqxmd.com/read/28546563/microbiota-in-t-cell-homeostasis-and-inflammatory-diseases
#5
REVIEW
Naeun Lee, Wan-Uk Kim
The etiology of disease pathogenesis can be largely explained by genetic variations and several types of environmental factors. In genetically disease-susceptible individuals, subsequent environmental triggers may induce disease development. The human body is colonized by complex commensal microbes that have co-evolved with the host immune system. With the adaptation to modern lifestyles, its composition has changed depending on host genetics, changes in diet, overuse of antibiotics against infection and elimination of natural enemies through the strengthening of sanitation...
May 26, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28546549/restimulation-induced-t-cell-death-through-ntb-a-sap-signaling-pathway-is-impaired-in-tuberculosis-patients-with-depressed-immune-responses
#6
Rodrigo E Hernández Del Pino, Joaquín M Pellegrini, Ana I Rovetta, Delfina Peña, Guadalupe I Álvarez, Agustín Rolandelli, Rosa M Musella, Domingo J Palmero, Alejandro Malbran, Virginia Pasquinelli, Verónica E García
Production of IFN-γ contributes to host defense against Mycobacterium tuberculosis (Mtb) infection. We previously demonstrated that Signaling lymphocytic activation molecule-associated protein (SAP) expression on cells from tuberculosis (TB) patients was inversely correlated with IFN-γ production. Here we first investigated the role of NK, T and B cell antigen (NTB-A)/SAP pathway in the regulation of Th1 response against Mtb. Upon antigen stimulation, NTB-A phosphorylation rapidly increases and afterwards modulates IFN-γ and IL-17 secretion...
May 26, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28546156/ancestral-alliances-plant-mutualistic-symbioses-with-fungi-and-bacteria
#7
REVIEW
Francis M Martin, Stéphane Uroz, David G Barker
Within the plant microbiota, mutualistic fungal and bacterial symbionts are striking examples of microorganisms playing crucial roles in nutrient acquisition. They have coevolved with their hosts since initial plant adaptation to land. Despite the evolutionary distances that separate mycorrhizal and nitrogen-fixing symbioses, these associations share a number of highly conserved features, including specific plant symbiotic signaling pathways, root colonization strategies that circumvent plant immune responses, functional host-microbe interface formation, and the central role of phytohormones in symbiosis-associated root developmental pathways...
May 26, 2017: Science
https://www.readbyqxmd.com/read/28546022/expression-of-immune-genes-in-systemic-and-mucosal-immune-tissues-of-channel-catfish-vaccinated-with-live-theronts-of-ichthyophthirius-multifiliis
#8
De-Hai Xu, Gabriel S A Moreira, Craig A Shoemaker, Dunhua Zhang, Benjamin H Beck
Ichthyophthiriasis caused by Ichthyophthirius multifiliis (Ich) has a worldwide distribution and affects most freshwater fishes. Fish surviving natural infection and/or immunized with Ich develop strong innate and adaptive immune responses. However, there is a lack of the knowledge regarding immune gene expression patterns in systemic and mucosal immune tissues, and how immune genes interact and lead to innate and adaptive immune protection against Ich infection in fish. The objective of this study was to investigate the expression of innate and adaptive immune-related genes in systemic (liver, spleen) and mucosal (gill, intestine) tissues of channel catfish over time following vaccination with live Ich theronts...
May 22, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28545924/retinoic-acid-pre-treatment-down-regulates-v-cholerae-outer-membrane-vesicles-induced-acute-inflammation-and-enhances-mucosal-immunity
#9
Ritam Sinha, Debaki Ranjan Howlader, Atri Ta, Soma Mitra, Santasabuj Das, Hemanta Koley
Bacterial outer membrane vesicles have been extensively investigated and considered as a next generation vaccine. Recently, we have demonstrated that the cholera pentavalent outer membrane vesicles (CPMVs) immunogen induced adaptive immunity and had a strong protective efficacy against the circulating V. cholerae strains in a mouse model. In this present study, we are mainly focusing on reducing outer membrane vesicle (OMV) -mediated toxicity without altering its antigenic property. Therefore, we have selected All-trans Retinoic Acid (ATRA), active metabolites of vitamin A, which have both anti-inflammatory and mucosal adjuvant properties...
May 22, 2017: Vaccine
https://www.readbyqxmd.com/read/28545241/lactobacillus-rhamnosus-hn001-and-lactobacillus-acidophilus-la-14-attenuate-gardnerella-vaginalis-infected-bacterial-vaginosis-in-mice
#10
Se-Eun Jang, Jin-Ju Jeong, Su-Young Choi, Hyunji Kim, Myung Joo Han, Dong-Hyun Kim
Oral administration of a probiotic mixture (PM; Respecta(®)) consisting of Lactobacillus rhamnosus HN001 (L1), Lactobacillus acidophilus La-14 (L2), and lactoferrin RCXTM results in colonization of these probiotics in the vagina of healthy women. Therefore, we examined whether vaginal colonization of the PM ingredients L1 and L2 could attenuate bacterial vaginosis (BV). BV was induced in mice via β-estradiol-3-benzoate-induced immunosuppression and intravaginal inoculation with Gardnerella vaginalis (GV)...
May 23, 2017: Nutrients
https://www.readbyqxmd.com/read/28545004/autophagy-as-an-emerging-arena-for-plant-pathogen-interactions
#11
REVIEW
Daniel Hofius, Liang Li, Anders Hafrén, Nuria S Coll
Autophagy is a highly conserved degradation and recycling process that controls cellular homeostasis, stress adaptation, and programmed cell death in eukaryotes. Emerging evidence indicates that autophagy is a key regulator of plant innate immunity and contributes with both pro-death and pro-survival functions to antimicrobial defences, depending on the pathogenic lifestyle. In turn, several pathogens have co-opted and evolved strategies to manipulate host autophagy pathways to the benefit of infection, while some eukaryotic microbes require their own autophagy machinery for successful pathogenesis...
May 22, 2017: Current Opinion in Plant Biology
https://www.readbyqxmd.com/read/28544771/quantitative-proteomic-analysis-of-host-epithelial-cells-infected-by-salmonella-enterica-serovar-typhimurium
#12
Linlu Qi, Mo Hu, Jiaqi Fu, Yanhua Liu, Mei Wu, Kaiwen Yu, Xiaoyun Liu
Systems-level analyses have the capability to offer new insight into host-pathogen interactions on the molecular level. Using Salmonella infection of host epithelial cells as a model system, we previously analyzed intracellular bacterial proteome as a window into pathogens' adaptations to their host environment (Infect. Immun. 2015; J. Proteome Res. 2017). Herein we extended our efforts to quantitatively examine protein expression of host cells during infection. In total, we identified more than 5,000 proteins with 194 differentially regulated proteins upon bacterial infection...
May 25, 2017: Proteomics
https://www.readbyqxmd.com/read/28543911/polymorphism-of-tlr5-rs5744174-is-associated-with-disease-progression-in-chinese-patients-with-chronic-hbv-infection
#13
Lina Cao, Tong Zhang, Junping Zhu, Aixin Li, Kai Zheng, Nan Zhang, Bin Su, Wei Xia, Hao Wu, Ning Li, Qiushui He
Toll-like receptors (TLRs) play a crucial role in innate and adaptive immunity, protecting the host from viral pathogens. Studies have implicated that TLR5 is associated with various diseases such as autoimmune and inflammation related diseases. However, little is known about the relationship between TLR5 and hepatitis B virus (HBV) infection. We studied the effect of TLR5 gene polymorphisms on susceptibility to and disease progression of chronic hepatitis B (CHB) infection in Chinese. Blood samples were taken from 636 patients with CHB, HBV-related liver cirrhosis (LC) or hepatocellular carcinoma (HCC) and 273 controls...
May 25, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28543817/influence-of-diabetes%C3%A2-mellitus-on-the-immunity-to-human-tuberculosis
#14
REVIEW
Nathella Pavan Kumar, Subash Babu
Type 2 diabetes mellitus (DM) is a major risk factor for the development of active pulmonary tuberculosis, with development of DM pandemic in countries where tuberculosis (TB) is also endemic. Understanding the impact of DM on TB and the determinants of co-morbidity is essential in responding to this growing public health problem with improved therapeutic approaches. Despite the clinical and public health significance posed by the dual burden of TB and DM, little is known about the immunological and biochemical mechanisms of susceptibility...
May 22, 2017: Immunology
https://www.readbyqxmd.com/read/28543738/crispr-editing-in-biological-and-biomedical-investigation
#15
Xing-Da Ju, Jing Xu, Zhong Sheng Sun
The CRISPR (clustered regularly interspaced short palindromic repeat)-Cas (CRISPR--associated protein) system, a prokaryotic RNA-based adaptive immune system against viral infection, is emerging as a powerful genome editing tool in broad research areas. To further improve and expand its functionality, various CRISPR delivery strategies have been tested and optimized, and key CRISPR system components such as Cas protein have been engineered with different purposes. Benefiting from more in-depth understanding and further development of CRISPR, versatile CRISPR-based platforms for genome editing have been rapidly developed to advance investigations in biology and biomedicine...
May 20, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28542832/integrated-transcriptomic-and-metabolomic-analysis-reveals-adaptive-changes-of-hibernating-retinas
#16
Yizhao Luan, Jingxing Ou, Vincent P Kunze, Fengyu Qiao, Yan Wang, Lai Wei, Wei Li, Zhi Xie
Hibernation is a seasonally adaptive strategy that allows hibernators to live through extremely cold conditions. Despite the profound reduction of blood flow to the retinas, hibernation causes no lasting retinal injury. Instead, hibernators show an increased tolerance to ischemic insults during the hibernation period. To understand the molecular changes of the retinas in response to hibernation, we applied an integrative transcriptome and metabolome analysis to explore changes in gene expression and metabolites of 13-lined ground squirrel retinas during hibernation...
May 25, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28542546/albendazole-increases-the-inflammatory-response-and-the-amount-of-em2-positive-small-particles-of-echinococcus-multilocularis-spems-in-human-hepatic-alveolar-echinococcosis-lesions
#17
Franz J Ricken, Juliane Nell, Beate Grüner, Julian Schmidberger, Tanja Kaltenbach, Wolfgang Kratzer, Andreas Hillenbrand, Doris Henne-Bruns, Peter Deplazes, Peter Möller, Peter Kern, Thomas F E Barth
BACKGROUND: Alveolar echinococcosis (AE) is caused by the metacestode stage of Echinococcus multilocularis. The inflammatory response to this infection is influenced by the interaction of the parasite with the host. We aimed to analyze human liver lesions infected with Echinococcus multilocularis and the changes of the cellular infiltrates during albendazole (ABZ) treatment. METHODOLOGY/PRINCIPAL FINDINGS: We analyzed liver tissue samples from 8 untreated patients, 5 patients treated with two daily doses of 400 mg ABZ for up to two months and 7 patients treated for more than two months with the same ABZ therapy...
May 25, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28542528/adaptation-of-candida-albicans-to-environmental-ph-induces-cell-wall-remodelling-and-enhances-innate-immune-recognition
#18
Sarah L Sherrington, Eleanor Sorsby, Nabeel Mahtey, Pizga Kumwenda, Megan D Lenardon, Ian Brown, Elizabeth R Ballou, Donna M MacCallum, Rebecca A Hall
Candida albicans is able to proliferate in environments that vary dramatically in ambient pH, a trait required for colonising niches such as the stomach, vaginal mucosal and the GI tract. Here we show that growth in acidic environments involves cell wall remodelling which results in enhanced chitin and β-glucan exposure at the cell wall periphery. Unmasking of the underlying immuno-stimulatory β-glucan in acidic environments enhanced innate immune recognition of C. albicans by macrophages and neutrophils, and induced a stronger proinflammatory cytokine response, driven through the C-type lectin-like receptor, Dectin-1...
May 22, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28542527/genomic-and-transcriptomic-analyses-reveal-adaptation-mechanisms-of-an-acidithiobacillus-ferrivorans-strain-yl15-to-alpine-acid-mine-drainage
#19
Tangjian Peng, Liyuan Ma, Xue Feng, Jiemeng Tao, Meihua Nan, Yuandong Liu, Jiaokun Li, Li Shen, Xueling Wu, Runlan Yu, Xueduan Liu, Guanzhou Qiu, Weimin Zeng
Acidithiobacillus ferrivorans is an acidophile that often occurs in low temperature acid mine drainage, e.g., that located at high altitude. Being able to inhabit the extreme environment, the bacterium must possess strategies to copy with the survival stress. Nonetheless, information on the strategies is in demand. Here, genomic and transcriptomic assays were performed to illuminate the adaptation mechanisms of an A. ferrivorans strain YL15, to the alpine acid mine drainage environment in Yulong copper mine in southwest China...
2017: PloS One
https://www.readbyqxmd.com/read/28542410/gla-rich-protein-function-as-an-anti-inflammatory-agent-in-monocytes-macrophages-implications-for-calcification-related-chronic-inflammatory-diseases
#20
Carla S B Viegas, Rúben M Costa, Lúcia Santos, Paula A Videira, Zélia Silva, Nuna Araújo, Anjos L Macedo, António P Matos, Cees Vermeer, Dina C Simes
Calcification-related chronic inflammatory diseases are multifactorial pathological processes, involving a complex interplay between inflammation and calcification events in a positive feed-back loop driving disease progression. Gla-rich protein (GRP) is a vitamin K dependent protein (VKDP) shown to function as a calcification inhibitor in cardiovascular and articular tissues, and proposed as an anti-inflammatory agent in chondrocytes and synoviocytes, acting as a new crosstalk factor between these two interconnected events in osteoarthritis...
2017: PloS One
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