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https://www.readbyqxmd.com/read/28812134/elevated-tumor-to-liver-uptake-ratio-tlr-from-18-f-fdg-pet-ct-predicts-poor-prognosis-in-stage-iia-colorectal-cancer-following-curative-resection
#1
Jun Huang, Liang Huang, Jiaming Zhou, Yinghua Duan, Zhanwen Zhang, Xiaoyan Wang, Pinzhu Huang, Shuyun Tan, Ping Hu, Jianping Wang, Meijin Huang
PURPOSE: The prognostic value of the tumor-to-liver uptake ratio (TLR) from 18-fluoro-2-deoxyglucose positron emission tomography/computed tomography ((18)F-FDG-PET/CT) in the early stage of colorectal cancer (CRC) is unclear. Notably, some stage IIA CRC patients experience early recurrence even after curative resection and might benefit from neoadjuvant or adjuvant chemotherapy. This study aims to evaluate whether elevated TLR from (18)F-FDG-PET/CT can predict poor prognosis in stage IIA CRC patients undergoing curative resection...
August 15, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28811679/bisphenol-a-does-not-mimic-estrogen-in-the-promotion-of-the-in-vitro-response-of-murine-dendritic-cells-to-toll-like-receptor-ligands
#2
Marita Chakhtoura, Uma Sriram, Michelle Heayn, Joshua Wonsidler, Christopher Doyle, Joudy-Ann Dinnall, Stefania Gallucci, Rebecca A Roberts
Sex hormones affect immune responses and might promote autoimmunity. Endocrine disrupting chemicals such as bisphenol A (BPA) may mimic their immune effects. Conventional dendritic cells (cDCs) are pivotal initiators of immune responses upon activation by danger signals coming from pathogens or distressed tissues through triggering of the Toll-like receptors (TLRs). We generated in vitro murine cDCs in the absence of estrogens and measured the effects of exogenously added estrogen or BPA on their differentiation and activation by the TLR ligands LPS and CpG...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28811677/the-relationship-between-vegfa-and-tgfb1-polymorphisms-and-target-lesion-revascularization-after-elective-percutaneous-coronary-intervention
#3
Tadeusz Osadnik, Andrzej Lekston, Kamil Bujak, Joanna Katarzyna Strzelczyk, Lech Poloński, Mariusz Gąsior
BACKGROUND AND AIM: The specific association between genetic variation and in-stent restenosis is still only partly understood. The aim of this study is to analyze the relationship between functional polymorphisms in the genes encoding vascular endothelial growth factor A (VEGF-A; rs699947) and transforming growth factor beta 1 (TGF-β1; rs1800470) and target lesion revascularization (TLR) risk. METHODS: A total of 676 patients (805 lesions) with stable coronary artery disease (SCAD) who received elective percutaneous coronary intervention (PCI) with at least one bare-metal stent implantation were included...
2017: Disease Markers
https://www.readbyqxmd.com/read/28811600/exploring-leishmania-secretory-proteins-to-design-b-and-t-cell-multi-epitope-subunit-vaccine-using-immunoinformatics-approach
#4
Nazia Khatoon, Rajan Kumar Pandey, Vijay Kumar Prajapati
Visceral leishmaniasis (VL) is a fatal form of leishmaniasis which affects 70 countries, worldwide. Increasing drug resistance, HIV co-infection, and poor health system require operative vaccination strategy to control the VL transmission dynamics. Therefore, a holistic approach is needed to generate T and B memory cells to mediate long-term immunity against VL infection. Consequently, immunoinformatics approach was applied to design Leishmania secretory protein based multi-epitope subunit vaccine construct consisting of B and T cell epitopes...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28809572/antigen-specific-gut-inflammation-and-systemic-immune-responses-induced-by-pro-longing-wheat-gluten-sensitization-in-balb-c-murine-model
#5
Vijaykrishnaraj M, Mohan Kumar Bv, Muthukumar Sp, Nawneet K Kurrey, Pichan Prabhasankar
Gluten-related diseases such as wheat allergy, celiac disease, and gluten intolerance are widespread in the globe to genetically pre-disposed individuals. The present study aims to develop wheat-gluten induced BALB/c murine model for addressing wheat-gluten related disorders by sensitizing the wheat gluten through the route of intraperitoneal and oral challenge in prolonged days. During the sensitization, the sera were collected for specific anti-gliadin antibodies response and pro-inflammatory markers quantification...
August 15, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28808963/extraction-and-qpcr-based-detection-of-mirnas-from-cultured-pbmcs-of-bubaline-origin
#6
Chandra S Mukhopadhyay, Ramneek Verma, Jasdeep Singh
MicroRNAs are small noncoding but functionally important RNA molecules that are involved in regulating diverse cellular, metabolic, and immune processes. Their small size necessitates modification in traditional acid phenol-chloroform based RNA isolation procedures to get highly enriched fraction of small RNA that includes miRNAs and siRNAs . Further, of the different methods available, real-time PCR is a powerful tool for precise and specific detection and quantification of miRNA. Moreover, real-time PCR is used to validate the screening or expression of miRNAs that are discovered during high-throughput sequencing, or microarray analysis...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28808328/light-guided-in-vivo-activation-of-innate-immune-cells-with-photocaged-tlr-2-6-agonist
#7
Keun Ah Ryu, Bethany McGonnigal, Troy Moore, Tawnya Kargupta, Rock J Mancini, Aaron P Esser-Kahn
The complexity of the immune system creates challenges in exploring its importance and robustness. To date, there have been few techniques developed to manipulate individual components of the immune system in an in vivo environment. Here we show a light-based dendritic cell (DC) activation allowing spatial and temporal control of immune activation in vivo. Additionally, we show time dependent changes in RNA profiles of the draining lymph node, suggesting a change in cell profile following DC migration and indicating that the cells migrating have been activated towards antigen presentation...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28807557/the-role-of-toll-like-receptor-3-in-chronic-contact-hypersensitivity-induced-by-repeated-elicitation
#8
Risa Yasuike, Risa Tamagawa-Mineoka, Mayumi Ueta, Naomi Nakamura, Shigeru Kinoshita, Norito Katoh
BACKGROUND: Accumulating evidence suggests that Toll-like receptor (TLR)-3 signaling is involved in non-infectious immune and inflammatory reactions as well as in viral infections. The skin of patients with atopic dermatitis (AD) is often infected with virus and bacteria, leading to the aggravation of atopic symptoms. These findings suggest TLR3 signaling may be involved in the pathogenesis of AD, but the exact role of TLR3 in AD remains to be defined. OBJECTIVE: The purpose of this study was to investigate the role of TLR3 in chronic contact hypersensitivity reactions induced by repeated elicitation, resembling the features of AD...
August 4, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28806745/persistent-mycobacteria-evade-an-antibacterial-program-mediated-by-phagolysosomal-tlr7-8-myd88-in-human-primary-macrophages
#9
Alexandre Gidon, Signe Elisabeth Åsberg, Claire Louet, Liv Ryan, Markus Haug, Trude Helen Flo
Pathogenic mycobacteria reside in macrophages where they avoid lysosomal targeting and degradation through poorly understood mechanisms proposed to involve arrest of phagosomal maturation at an early endosomal stage. A clear understanding of how this relates to host defenses elicited from various intracellular compartments is also missing and can only be studied using techniques allowing single cell and subcellular analyses. Using confocal imaging of human primary macrophages infected with Mycobacterium avium (Mav) we show evidence that Mav phagosomes are not arrested at an early endosomal stage, but mature to a (LAMP1+/LAMP2+/CD63+) late endosomal/phagolysosomal stage where inflammatory signaling and Mav growth restriction is initiated through a mechanism involving Toll-like receptors (TLR) 7 and 8, the adaptor MyD88 and transcription factors NF-κB and IRF-1...
August 14, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28804955/3m-052-as-an-adjuvant-for-a-plga-microparticle-based-leishmania-donovani-recombinant-protein-vaccine
#10
Qian Wang, Meagan A Barry, Christopher A Seid, Elissa M Hudspeth, C Patrick McAtee, Michael J Heffernan
It is believed that an effective vaccine against leishmaniasis will require a T helper type 1 (TH 1) immune response. In this study, we investigated the adjuvanticity of the Toll-like receptor (TLR) 7/8 agonist 3M-052 in combination with the Leishmania donovani 36-kDa nucleoside hydrolase recombinant protein antigen (NH36). NH36 and 3M-052 were encapsulated in separate batches of poly(lactic-co-glycolic acid) (PLGA) microparticles (MPs). The loading efficiency for NH36 was 83% and for 3M-052 was above 95%. In vitro stimulation of bone marrow-derived dendritic cells, measured by IL-12 secretion, demonstrated that 3M-052 (free or MP-formulated) had a concentration-dependent immunostimulatory effect with an optimum concentration of 2 µg/mL...
August 14, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28804542/significant-association-of-trem-1-with-hmgb1-tlrs-and-rage-in-the-pathogenesis-of-insulin-resistance-in-obese-diabetic-populations
#11
Saravanan Subramanian, Pradeep K Pallati, Poonam Sharma, Devendra K Agrawal, Kalyana C Nandipati
Activated cell surface and intracellular receptors lead to insulin resistance in obesity. Among these receptors, triggering receptors expressed on myeloid cells (TREM)-1, toll like receptors (TLRs), and receptors for advanced glycation end products (RAGE) play a significant role in the induction of inflammatory response in innate immunity. TREM-1 potentially amplifies TLRs and RAGE synergistically with DNA-binding high-mobility group box 1 (HMGB-1). The objective of the study was to analyze the association between TREM-1/DAP12 and HMGB-1, RAGE and TLRs in obesity-induced insulin resistance...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28804538/exendin-4-assisted-adipose-derived-mesenchymal-stem-cell-therapy-protects-renal-function-against-co-existing-acute-kidney-ischemia-reperfusion-injury-and-severe-sepsis-syndrome-in-rat
#12
Pei-Hsun Sung, Hsin-Ju Chiang, Christopher Glenn Wallace, Chih-Chao Yang, Yen-Ta Chen, Kuan-Hung Chen, Chih-Hung Chen, Pei-Lin Shao, Yung-Lung Chen, Sarah Chua, Han-Tan Chai, Yi-Ling Chen, Tien-Hung Huang, Hon-Kan Yip, Mel S Lee
This study tested the hypothesis that combined therapy with exendin-4 (Ex4) and autologous adipose-derived mesenchymal stem cells (ADMSCs) was superior to either alone for protecting renal function against acute kidney ischemia-reperfusion (IR; 40-min ischemia/27-h reperfusion) injury when complicated by sepsis syndrome (SS; by cecal-ligation-puncture). Adult-male Sprague-Dawley rats (n=40) were equally divided into group 1 (sham-control), group 2 (IR-SS), group 3 (IR-SS + Ex4, 10 μg/kg subcutaneously 30 min after reperfusion and daily for 3 days), group 4 [IR-SS + ADMSC (1...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28801798/downregulation-of-paralemmin-3-ameliorates-lipopolysaccharide-induced-acute-lung-injury-in-rats-by-regulating-inflammatory-response-and-inhibiting-formation-of-tlr4-myd88-and-tlr4-trif-complexes
#13
Xuxin Chen, Lu Tang, Jian Feng, Yi Wang, Zhihai Han, Jiguang Meng
Previous studies have demonstrated paralemmin-3 (PALM3) participates in Toll-like receptor (TLR) signaling. This study investigated the effect of PALM3 knockdown on lipopolysaccharide (LPS)-induced acute lung injury (ALI) and its underlying mechanisms. We constructed a recombinant adenoviral vector containing short hairpin RNA for PALM3 to knockdown PALM3 expression. A transgene-free adenoviral vector was used as a negative control. The ALI rat model was established by LPS peritoneal injection at 48-h post-transfection...
August 12, 2017: Inflammation
https://www.readbyqxmd.com/read/28801370/impact-of-tlr-2-tlr-4-activation-on-the-expression-of-abca1-and-abcg1-in-raw-cells
#14
Kana Suzuki, Yasushi Kawakami, Kazuyoshi Yamauchi
Toll-like receptors (TLR) activation is thought to modulate the macrophage cholesterol efflux and contribute to the atherosclerosis progression; however, the precise pathophysiological mechanism remains unclear. We investigated the effects of TLR2- and TLR4-activation on the expression of the ATP-binding cassette (ABC) transporters ABCA1 and ABCG1 in a mouse macrophage cell line, Raw 264.7. Both TLR2- and TLR4-activation upregulated the expression of ABCA1 mRNA but downregulated that of ABCG1 mRNA. These alterations may be mainly regulated by the following 3 cascades: (1) the TLR/myeloid differentiation primary-response protein 88/Liver X receptor pathway, which upregulated the ABCA1 mRNA; (2) NF-κB pathway, which downregulated the ABCG1 mRNA, and (3) the p38 pathway, which upregulated and stabilized ABCA1 mRNA...
August 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/28801363/l-selectin-promotes-the-maturation-of-dendritic-cells-via-up-regulation-the-expression-of-tlr4-in-vitro
#15
Zhishuai Ye, Jia Liu, Jie Zheng, Jianing Zhang, Rongchong Huang
The relationship between dendritic cells (DCs) and L-selectin in the progress of atherosclerosis is unclear. Here, we used L-selectin co-cultured with DCs to investigate the effect of L-selectin on the maturation of DCs in vitro Monocytes derived DCs were isolated and cultured from human peripheral blood. After being stimulated with L-selectin and/or its antagonist for 24-48 hours, the feather of cells was observed by the electron microscope. The expression of mature antigens CD1a, CD80, CD83, and CD86 were investigated by flow cytometric analysis (FACS)...
August 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/28800975/exopolysaccharides-from-lactobacillus-delbrueckii-oll1073r-1-modulate-innate-antiviral-immune-response-in-porcine-intestinal-epithelial-cells
#16
Paulraj Kanmani, Leonardo Albarracin, Hisakazu Kobayashi, Hikaru Iida, Ryoya Komatsu, A K M Humayun Kober, Wakako Ikeda-Ohtsubo, Yoshihito Suda, Hisashi Aso, Seiya Makino, Hiroshi Kano, Tadao Saito, Julio Villena, Haruki Kitazawa
Previous studies demonstrated that the extracellular polysaccharides (EPSs) produced by Lactobacillus delbrueckii OLL1073R-1 (LDR-1) improve antiviral immunity, especially in the systemic and respiratory compartments. However, it was not studied before whether those EPSs are able to beneficially modulate intestinal antiviral immunity. In addition, LDR-1-host interaction has been evaluated mainly with immune cells while its interaction with intestinal epithelial cells (IECs) was not addressed before. In this work, we investigated the capacity of EPSs from LDR-1 to modulate the response of porcine IECs (PIE cells) to the stimulation with the Toll-like receptor (TLR)-3 agonist poly(I:C) and the role of TLR2, TLR4, and TLR negative regulators in the immunoregulatory effect...
August 8, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28800779/proinflammatory-mg-63-cells-response-infection-with-enterococcus-faecalis-cps2-evaluated-by-the-expression-of-tlr-2-il-1%C3%AE-and-inos-mrna
#17
Boy M Bachtiar, Endang W Bachtiar
OBJECTIVE: We have previously demonstrated that unencapsulated Enterococcus faecalis cps2 inhibits biofilm formation of Candida albicans, a fungus commonly found with E. faecalis in periapical lesion. In this study, we compared encapsulated and unencapsulated E. faecalis cps2 strains relationship with osteoblastic (MG-63) cells, whereas E. faecalis ATCC 29212 were used as a reference strain. RESULTS: The binding capacity of E. faecalis to MG-63 cells as shown by each tested strain was comparable, but the unencapsulated strain was less invasive compared to the encapsulated and the reference strains...
August 11, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28799238/everolimus-eluting-bioresorbable-vascular-scaffold-implantation-to-treat-saphenous-vein-graft-disease-single-center-initial-experience
#18
Fabien Picard, Guillaume Marquis-Gravel, Robert Avram, Hung Q Ly, Jean-François Dorval, Serge Doucet, Quentin de Hemptinne, Philippe L L'allier, Jean-François Tanguay
AIMS: Recent studies have shown favorable outcomes with everolimus-eluting bioresorbable vascular scaffold (BVS) in patients with stable coronary artery disease. Data on the use of BVS in saphenous vein graft disease (SVG) is currently lacking. METHODS AND RESULTS: A total of 10 consecutive patients (13 lesions, including 6 in-stent restenosis) who underwent BVS for SVG disease between May 2013 and June 2015 at a tertiary care institution were included. Median follow-up period was 874 (720-926) days...
August 10, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/28798732/activation-of-erk-signaling-via-tlr11-induces-il-12p40-production-in-peritoneal-macrophages-challenged-by-neospora-caninum
#19
Xiaoxia Jin, Pengtao Gong, Xichen Zhang, Guojiang Li, Tao Zhu, Mengge Zhang, Jianhua Li
Neospora caninum, an obligate intracellular protozoan parasite, can infect a large variety of vertebrate hosts including the most economically important cattle. Infection with N. caninum is a main cause of abortion in both dairy and beef cattle, which causes great economic losses worldwide. However, the mechanism of host cell infection by N. caninum has not been fully elucidated, especially in terms of inflammatory responses. In this study, the effect of TLR-ERK signaling pathway on the synthesis of pro-inflammatory interleukin-12p40 in mouse peritoneal macrophages (PMϕ) challenged by N...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28796783/myd88-contribution-to-ocular-surface-homeostasis
#20
Rose Y Reins, Justin Courson, Carolina Lema, Rachel L Redfern
The cornea must maintain homeostasis, enabling rapid response to injury and microbial insult, to protect the eye from insult and infection. Toll-like receptors (TLRs) are critical to this innate immune response through the recognition and response to pathogens. Myeloid differentiation primary response (MyD88) is a key signaling molecule necessary for Toll-like receptor (TLR) and interleukin-1 receptor (IL-1R)-mediated immune defense and has been shown to be necessary for corneal defense during infection. Here, we examined the intrinsic role of TLR signaling in ocular surface tissues by determining baseline levels of inflammatory mediators, the response to mechanical stimuli, and corneal infection in MyD88-deficient mice (MyD88-/-)...
2017: PloS One
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