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https://www.readbyqxmd.com/read/29353373/disturbance-of-metabotropic-glutamate-receptor-mediated-long-term-depression-mglu-ltd-of-excitatory-synaptic-transmission-in-the-rat-hippocampus-after-prenatal-immune-challenge
#1
Mélanie Cavalier, Azza Ben Sedrine, Lea Thevenet, Nadine Crouzin, Janique Guiramand, Marie-Céleste de Jésus Ferreira, Catherine Cohen-Solal, Gérard Barbanel, Michel Vignes
Maternal immune challenge has proved to induce moderate to severe behavioral disabilities in the offspring. Cognitive/behavioral deficits are supported by changes in synaptic plasticity in different brain areas. We have reported previously that prenatal exposure to bacterial LPS could induce inhibition of hippocampal long-term potentiation (LTP) in the CA1 area of the juvenile/adult male offspring associated with spatial learning inabilities. Nevertheless, deficits in plasticity could be observed at earlier stages as shown by the early loss of long-term depression (LTD) in immature animals...
January 20, 2018: Neurochemical Research
https://www.readbyqxmd.com/read/29353353/peripheral-th17-treg-imbalance-in-elderly-patients-with-ischemic-stroke
#2
Sanam Dolati, Majid Ahmadi, Mohammad Khalili, Ali Akabar Taheraghdam, Homayoon Siahmansouri, Zohreh Babaloo, Leili Aghebati-Maleki, Farhad Jadidi-Niaragh, Vahid Younesi, Mehdi Yousefi
CD4+CD25+ regulatory T (Treg) cells and Th17 cells play important roles in peripheral immunity. Immune responses are main elements in the pathogenesis of ischemic stroke (IS). The contribution of Th17 cells in IS patients has not been proved, and whether the balance of Treg/Th17 cells is changed in IS patients remains unidentified. In the present study, we studied Th17 and Treg cell frequency, cytokine secretion, expression of transcription factors, and microRNAs related to Th17 and Treg cells differentiation, which is compared between IS patients and control group...
January 20, 2018: Neurological Sciences
https://www.readbyqxmd.com/read/29353310/nod-like-receptor-s-and-host-immune-responses-with-pseudomonas-aeruginosa-infection
#3
REVIEW
Alaa Alhazmi
INTRODUCTION: Molecular mechanisms underlying the interactions between Pseudomonas aeruginosa, the common opportunistic pathogen in cystic fibrosis individuals, and host induce a number of marked inflammatory responses and associate with complex therapeutic problems due to bacterial resistance to antibiotics in chronic stage of infection. METHODS: Pseudomonas aeruginosa is recognized by number of pattern recognition receptors (PRRs); NOD-like receptors (NLRs) are a class of PRRs, which can recognize a variety of endogenous and exogenous ligands, thereby playing a critical role in innate immunity...
January 20, 2018: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/29353306/toxoplasma-gondii-antigen-sag2a-differentially-modulates-il-1%C3%AE-expression-in-resistant-and-susceptible-murine-peritoneal-cells
#4
Jamilly Azevedo Leal-Sena, Jane Lima Dos Santos, Thaise Anne Rocha Dos Santos, Edson Mário de Andrade, Tiago Antônio de Oliveira Mendes, Juliano Oliveira Santana, Tiago Wilson Patriarca Mineo, José Roberto Mineo, Jair Pereira da Cunha-Júnior, Carlos Priminho Pirovani
The cell surface of Toxoplasma gondii is covered by antigens (SAGs) from the SRS family anchored by glycosylphosphatidylinositol (GPI) and includes antigens from the SAG2 family. Among these, the SAG2A surface antigen shows great potential in activating humoral responses and has been used in characterizing the acute phase of infection and in the serological diagnosis of toxoplasmosis. In this study, we aimed to evaluate rSAG2A-induced proteins in BALB/c and C57BL/c mice macrophages and to evaluate the phenotypic polarization induced in the process...
January 20, 2018: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29353154/cd41-immune-staining-of-micromegakaryocytes-improves-the-diagnosis-of-myelodysplastic-syndrome-and-differentiation-from-pancytopenia
#5
Jinjin Huang, Zhiqiong Wang, Lifang Huang, Miao Zheng
A morphometric analysis was performed on aspirated clots of bone marrow to identify the presence of micromegakaryocytes after immune staining with a monoclonal antibody raised against CD41. Quantitative and qualitative abnormalities of micromegakaryocytes were assessed based on both standard staining and CD41 immune staining. Micromegakaryocytes were largely detected in bone marrow from patients with myelodysplastic syndrome (MDS), while almost no micromegakaryocytes were present in aplastic anemia. CD41 immune staining clearly improved the efficiency of micromegakaryocyte detection under any conditions, showing strong potential as a tool for the auxiliary diagnosis of MDS and differentiation of MDS from pancytopenia, particularly aplastic anemia(AA)...
October 18, 2017: Leukemia Research
https://www.readbyqxmd.com/read/29353127/physical-comorbidities-increase-the-risk-of-psychiatric-comorbidity-in-immune-mediated-inflammatory-disease
#6
Ruth Ann Marrie, Randy Walld, James M Bolton, Jitender Sareen, John R Walker, Scott B Patten, Alexander Singer, Lisa M Lix, Carol A Hitchon, Renée El-Gabalawy, Alan Katz, John D Fisk, Charles N Bernstein
OBJECTIVE: We tested the association between physical comorbidity and incident depression, anxiety disorder and bipolar disorder in three immune-mediated inflammatory diseases (IMID): inflammatory bowel disease (IBD), multiple sclerosis (MS) and rheumatoid arthritis (RA) versus age-, sex- and geographically-matched controls. METHODS: Using population-based administrative data we identified 6119 persons with IBD, 3514 persons with MS, 10,206 persons with RA and 97,727 matched controls...
January 11, 2018: General Hospital Psychiatry
https://www.readbyqxmd.com/read/29353109/shortened-duration-tacrolimus-after-nonmyeloablative-hla-haploidentical-bmt
#7
Yvette L Kasamon, Ephraim J Fuchs, Marianna Zahurak, Gary L Rosner, Heather J Symons, Douglas E Gladstone, Carol Ann Huff, Lode J Swinnen, Robert A Brodsky, William H Matsui, Ivan Borrello, Satish Shanbhag, Kenneth R Cooke, Richard F Ambinder, Leo Luznik, Javier Bolaños-Meade, Richard J Jones
With posttransplantation cyclophosphamide (PTCy) as graft-versus-host disease (GVHD) prophylaxis, nonmyeloablative HLA-haploidentical (NMA haplo) and HLA-matched blood or marrow transplantation (BMT) have comparable outcomes. Early discontinuation of immunosuppression may reduce relapse, as well as improve immune reconstitution, but may increase GVHD. We conducted a prospective trial of NMA haplo BMT for patients with hematologic malignancies (median age, 61), evaluating the safety of early discontinuation of tacrolimus...
January 15, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29353100/vitamin-d-and-juvenile-systemic-lupus-erythematosus-lights-shadows-and-still-unresolved-issues
#8
REVIEW
Stefano Stagi, Donato Rigante
Systemic lupus erythematosus (SLE) and juvenile SLE (jSLE) are autoimmune disorders naturally associated with several genetic, environmental, hormonal, and immunological contributing factors. It has been assumed that vitamin D deficiency may have a role in the immune activation of patients with SLE and play an active part in many comorbidities and even complications. A host of clinical studies suggested that vitamin D exerts inhibitory effects on many immunological abnormalities associated with SLE, also in children and adolescents, while different reports have hypothesized that vitamin D may be associated with accelerated cardiovascular disease in SLE...
January 15, 2018: Autoimmunity Reviews
https://www.readbyqxmd.com/read/29353083/combining-ultrasound-and-intratumoral-administration-of-doxorubicin-loaded-microspheres-to-enhance-tumor-cell-killing
#9
Anh-Vu Do, Sean M Geary, Dongrim Seol, Phillip Tobias, Daniel Carlsen, Nattawut Leelakanok, James A Martin, Aliasger K Salem
Melanoma is an incurable disease for which alternative treatments to chemotherapy alone are sought. Here, using a melanoma model, we investigated the antitumor potential of combining ultrasound (US) with poly(lactic-co-glycolic acid) (PLGA) microspheres loaded with doxorubicin (DOX). The aim was to achieve synergistic tumoricidal activity through direct and indirect US-mediated damage of tumor cells combined with sustained and potentially controllable release (when combined with US) of DOX from microspheres...
January 15, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29353080/atlantic-salmon-adapted-to-seawater-for-9-weeks-develop-a-robust-immune-response-to-salmonid-alphavirus-upon-bath-challenge
#10
L J Moore, J Jarungsriapisit, T O Nilsen, S Stefansson, G L Taranger, C J Secombes, H C Morton, S Patel
Pancreas disease (PD) caused by salmonid alphavirus (SAV) is the most serious viral disease in Norwegian aquaculture. Study of the immune response to SAV will aid preventative measures including vaccine development. The innate immune response was studied in Atlantic salmon infected by either bath immersion (BI) or by intra-muscular (i.m.) injection (IM) with SAV subtype 3, two and nine weeks after seawater transfer (Phases A and B respectively). Phase A results have been previously published (Moore et al., 2017) and Phase B results are presented here together with a comparison of results achieved in Phase A...
January 15, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29353019/induction-by-innate-defence-regulator-peptide-1018-of-pro-angiogenic-molecules-and-endothelial-cell-migration-in-a-high-glucose-environment
#11
Paulina Marin-Luevano, Valentin Trujillo, Adrian Rodriguez-Carlos, Irma González-Curiel, Jose A Enciso-Moreno, Robert E W Hancock, Bruno Rivas-Santiago
Synthetic innate defence regulator (IDR) peptides such as IDR-1018 modulate immunity to promote key protective functions including chemotaxis, wound healing, and anti-infective activity, while suppressing pro-inflammatory responses to non-pathological levels. Here we demonstrated that IDR-1018 induced, by up to 75-fold, pro-angiogenic VEGF-165 in keratinocytes but suppressed this isoform in endothelial cells. It also induced early angiogenin and prolonged anti-inflammatory TGFβ expression on endothelial cells, while suppressing early pro-inflammatory IL-1β expression levels...
January 15, 2018: Peptides
https://www.readbyqxmd.com/read/29353010/modulation-of-immune-responses-by-plasmodium-falciparum-infection-in-asymptomatic-children-living-in-the-endemic-region-of-mbita-western-kenya
#12
Caroline Kijogi, Daisuke Kimura, Lam Quoc Bao, Risa Nakamura, Evans Asena Chadeka, Ngetich Benard Cheruiyot, Felix Bahati, Kazuhide Yahata, Osamu Kaneko, Sammy M Njenga, Yoshio Ichinose, Shinjiro Hamano, Katsuyuki Yui
Individuals living in malaria endemic areas become clinically immune after multiple re-infections over time and remain infected without apparent symptoms. However, it is unclear why a long period is required to gain clinical immunity to malaria, and how such immunity is maintained. Although malaria infection is reported to induce inhibition of immune responses, studies on asymptomatic individuals living in endemic regions of malaria are relatively scarce. We conducted a cross-sectional study of immune responses in asymptomatic school children aged 4-16years living in an area where Plasmodium falciparum and Schistosoma mansoni infections are co-endemic in Kenya...
January 15, 2018: Parasitology International
https://www.readbyqxmd.com/read/29352984/spcrus3-and-spcrus4-share-high-similarity-in-mud-crab-scylla-paramamosain-exhibiting-different-antibacterial-activities
#13
Yue Wang, Xiao-Wen Zhang, Hui Wang, Wen-Hong Fang, Hongyu Ma, Fengxia Zhang, Yuan Wang, Xin-Cang Li
Type I crustins are crucial effectors of crustacean immune system. Various type I crustins with high sequence diversity possess different antimicrobial activities. To date, the mechanism on how the sequence diversity of type I crustins affects their antimicrobial activities is largely unclear, and how different crustins function together against bacterial invasion still remains unknown. In this study, we identified two novel type I crustins, namely, SpCrus3 and SpCrus4, from an economically important crab, Scylla paramamosain...
January 15, 2018: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29352983/parasitoid-polydnaviruses-and-immune-interaction-with-secondary-hosts
#14
Xi-Qian Ye, Min Shi, Jian-Hua Huang, Xue-Xin Chen
Polydnaviruses (PDVs) are obligatory symbionts with parasitoid wasps. The PDV virions are produced solely in wasp (the primary host) calyx cells. They are injected into caterpillar hosts (the secondary host) during parasitoid oviposition, where they express irreplaceable actions to ensure survival and development of wasp larvae. Some of PDV gene products suppress host immune responses while others alter host growth, metabolism or endocrine system. Here, we treat new findings on PDV gene products and their action on immunity within secondary hosts...
January 15, 2018: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29352857/combining-chemotherapy-with-pd-1-blockade-in-nsclc
#15
REVIEW
Matthen Mathew, Thomas Enzler, Catherine A Shu, Naiyer A Rizvi
Antitumor immunity relies on the ability of the immune system to recognize tumor cells as foreign and eliminate them. An effective immune response in this setting is due to surveillance of tumor-specific antigens that induce an adaptive immune response resulting in T-cell mediated cytotoxicity. Immune checkpoint inhibitors, specifically those targeting the programmed cell death-1 (PD-1)/programmed cell death ligand-1 (PD-L1) axis, have demonstrated promising activity in non-small cell lung cancer (NSCLC). However, there remains a crucial need for better treatment strategies for the majority of patients with advanced NSCLC, particularly in the frontline setting...
January 17, 2018: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29352854/fc-gamma-receptor-binding-profile-of-anti-citrullinated-protein-antibodies-in-immune-complexes-suggests-a-role-for-fc%C3%AE-ri-in-the-pathogenesis-of-synovial-inflammation
#16
Ayla C Kempers, M Reza Nejadnik, Yoann Rombouts, Andreea Ioan-Facsinay, Maikel van Oosterhout, Wim Jiskoot, Tom W J Huizinga, René E M Toes, Hans Ulrich Scherer
OBJECTIVES: Anti-citrullinated protein antibodies (ACPA) are highly specific for rheumatoid arthritis (RA). Here, we studied binding of ACPA-IgG immune complexes (IC) to individual Fc gamma receptors (FcγR) to identify potential effector mechanisms by which ACPA could contribute to RA pathogenesis. METHODS: ACPA-IgG1 and control IgG1(IgG1 depleted of ACPA-IgG1) were isolated from plasma and synovial fluid (SF) of RA patients by affinity chromatography using CCP2 peptides...
January 15, 2018: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29352853/interferon-regulatory-factor-5-is-a-potential-target-of-autoimmune-response-triggered-by-epstein-barr-virus-and-mycobacterium-avium-subsp-paratuberculosis-in-rheumatoid-arthritis-investigating-a-mechanism-of-molecular-mimicry
#17
Marco Bo, Gian Luca Erre, Magdalena Niegowska, Marco Piras, Loredana Taras, Maria Giovanna Longu, Giuseppe Passiu, Leonardo A Sechi
OBJECTIVES: Rheumatoid arthritis (RA) is a chronic disease characterised by a pro-inflammatory cytokines linked erosive joint damage and by humoral and cellular response against a broad range of self-peptides. Molecular mimicry between Epstein-Barr virus (EBV), Mycobacterium avium subsp. paratuberculosis (MAP) and host peptides has long been regarded as an RA pathogenetic mechanism. Using bioinformatic analysis we identified high sequence homology among interferon regulatory factor 5 (IRF5), EBV antigen BOLF1 and MAP antigen MAP_4027...
January 15, 2018: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29352746/the-common-bean-cok-4-and-the-arabidopsis-fer-kinase-domain-share-similar-function-in-plant-growth-and-defense
#18
Rafhael Felipin Azevedo, Maria Celeste Gonçalves Vidigal, Paula Rodrigues Oblessuc, Maeli Melotto
Receptor-like kinases are membrane proteins that can be shared by diverse signaling pathways. Among them, the Arabidopsis thaliana FERONIA (FER) plays a role in the balance between distinct signals to control growth and defense. We have found that COK-4, a putative kinase encoded in the common bean anthracnose resistance locus Co-4 that is transcriptionally regulated during immune response, is highly similar to the kinase domain of FER. To assess whether COK-4 is a functional ortholog of FER, we expressed COK-4 in the wild type Col-0 and the fer-5 mutant of Arabidopsis and evaluated FER-associated traits...
January 20, 2018: Molecular Plant Pathology
https://www.readbyqxmd.com/read/29352742/cambogin-suppresses-dextran-sulphate-sodium-induced-colitis-by-enhancing-treg-cell-stability-and-function
#19
Yue Lu, Na-Mi Kim, Yi-Wen Jiang, Hong Zhang, Dan Zheng, Fu-Xiang Zhu, Rui Liang, Bin Li, Hong-Xi Xu
BACKGROUND AND PURPOSE: Inflammatory bowel disease (IBD) is a chronic and relapsing inflammatory disorder of gastrointestinal tract, and the dysfunction of immune regulation plays a critical role in IBD. Reflecting the limited use of current drugs and therapies for IBD treatment, it is necessary to explore novel drugs or therapies for this disease. We investigated the effect of cambogin in a mouse model of dextran sulphate sodium (DSS)-induced colitis and whether cambogin attenuates inflammation via Treg-cell-mediated immune modulation...
January 20, 2018: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29352728/differential-proteomic-analysis-of-synovial-fluid-from-hip-arthroplasty-patients-with-a-pseudotumor-vs-periprosthetic-osteolysis
#20
Isabelle Catelas, Eric A Lehoux, Zhibin Ning, Daniel Figeys, Stephen J Baskey, Paul E Beaulé
Adverse tissue reactions to metal implants, including pseudotumors, can compromise implant functionality and survivorship. The identification of specific proteins in the synovial fluid (SF) of hip arthroplasty patients with a pseudotumor may lead to a better understanding of the underlying pathomechanisms. The objective of the present study was to compare the protein content of SF from patients with a short-term metal-on-metal hip implant associated with a pseudotumor and patients with a long-term metal-on-polyethylene hip implant associated with periprosthetic osteolysis...
January 20, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
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