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https://www.readbyqxmd.com/read/28635072/plgf-enhances-tlr-dependent-inflammatory-responses-in-human-mononuclear-phagocytes
#1
Laura F Newell, Shernan G Holtan, Jane E Yates, Leonardo Pereira, Jeffrey W Tyner, Irina Burd, Grover C Bagby
PROBLEM: Levels of placental growth factor (PlGF) peak during third trimester of pregnancy, a time when women are at increased risk of virus-induced morbidity. We hypothesized PlGF might contribute to an exaggerated inflammatory response to Toll-like receptor (TLR) activation. METHOD OF STUDY: Primary human adult and cord blood CD14(+) cells were cultured in the presence of TLR ligands and/or PlGF. RESULTS: PlGF significantly enhanced the magnitude and duration of TNF messenger RNA and protein production by TLR-7/8-activated monocytes, and increased subsequent production of TNF-independent inflammatory cytokines...
June 20, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28634588/antitumor-effect-of-kml-b-treated-dendritic-cells-via-induction-of-lymphocyte-activation
#2
Jong-Jin Kim, Yun-Ho Hwang, Kyung-Yun Kang, Sung-Ju Lee, Jong-Bae Kim, Jina Choi, Sung-Tae Yee
Lectins are carbohydrate-binding proteins with various biological activities, such as antitumor and immunomodulatory effects. Although lectins have various biological activities, they are still limited by cytotoxicity in normal cells. To overcome this problem, we used the noncytotoxic part of Korean mistletoe lectin B-chain (KML-B) to induce maturation of dendritic cells (DCs). A previous study reported that KML-B induces DC maturation by triggering TLR-4, including expression of costimulatory molecules (CD40, CD80, and CD86), MHC II, and secretion of cytokines in DCs...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28633471/development-of-a-chicken-ileal-explant-culture-model-for-measurement-of-gut-inflammation-induced-by-lipopolysaccharide
#3
Qian Zhang, Susan D Eicher, Kolapo M Ajuwon, Todd J Applegate
Gut mucosa holds a single layer of epithelial cells and the largest mass of lymphoid tissue in the body. Although the epithelial cell culture model is widely used to assess intestinal barrier function, it has limitations for studying cellular interactions, in particular those of the immune system. In this study, a chicken ileal explant culture model was developed for investigating short-term gut inflammatory and secretory responses in an ex vivo environment. Initially, ileal explants from broilers at 21 d of age were cultured ex vivo up to 6 h...
June 16, 2017: Poultry Science
https://www.readbyqxmd.com/read/28631105/stent-fracture-is-associated-with-a-higher-mortality-in-patients-with-type-2-diabetes-treated-by-implantation-of-a-second-generation-drug-eluting-stent
#4
Zhen Ge, Zhi-Zhong Liu, Jing Kan, Jun-Jie Zhang, Sui-Ji Li, Nai-Liang Tian, Fei Ye, Xue-Song Qian, Song Yang, Meng-Xuan Chen, Tanveer S Rab, Shao-Liang Chen
Type 2 diabetes correlates with clinical events after the implantation of a second-generation drug-eluting stent (DES). The rate and prognostic value of stent fracture (SF) in patients with diabetes who underwent DES implantation remain unknown. A total of 1160 patients with- and 2251 without- diabetes, who underwent surveillance angiography at 1 year after DES implantation between June 2004 and August 2014, were prospectively studied. The primary endpoints included the incidence of SF and a composite major adverse cardiac event [MACE, including myocardial infarction (MI), cardiac death, and target-vessel revascularization (TVR)] at 1-year follow-up and at the end of follow-up for overall patients, and target lesion failure [TLF, including cardiac death, target vessel myocardial infarction (TVMI) and target lesion revascularization (TLR)] at the end of study for SF patients...
June 19, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28630706/effects-of-feeding-untreated-pasteurized-and-acidified-waste-milk-and-bunk-tank-milk-on-the-performance-serum-metabolic-profiles-immunity-and-intestinal-development-in-holstein-calves
#5
Yang Zou, Yajing Wang, Youfei Deng, Zhijun Cao, Shengli Li, Jiufeng Wang
BACKGROUND: The present experiment was performed to assess the effects of different sources of milk on the growth performance, serum metabolism, immunity, and intestinal development of calves. Eighty-four Holstein male neonatal calves were assigned to one of the following four treatment groups: those that received bunk tank milk (BTM), untreated waste milk (UWM), pasteurized waste milk (PWM), and acidified waste milk (AWM) for 21 d. RESULTS: Calves in the BTM and AWM groups consumed more starter (P < 0...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28630328/toll-like-receptor-pathway-evolution-in-deuterostomes
#6
Michael G Tassia, Nathan V Whelan, Kenneth M Halanych
Animals have evolved an array of pattern-recognition receptor families essential for recognizing conserved molecular motifs characteristic of pathogenic microbes. One such family is the Toll-like receptors (TLRs). On pathogen binding, TLRs initiate specialized cytokine signaling catered to the class of invading pathogen. This signaling is pivotal for activating adaptive immunity in vertebrates, suggesting a close evolutionary relationship between innate and adaptive immune systems. Despite significant advances toward understanding TLR-facilitated immunity in vertebrates, knowledge of TLR pathway evolution in other deuterostomes is limited...
June 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28630066/porphyromonas-gulae-activates-unprimed-and-ifn%C3%AE-primed-macrophages-via-the-pattern-recognition-receptors-tlr-2-tlr-4-and-nod2
#7
James A Holden, Neil M O'Brien-Simpson, Jason C Lenzo, Rebecca K H Orth, Ashley Mansell, Eric C Reynolds
Porphyromonas gulae is an anaerobic, Gram-negative coccobacillus that has been associated with periodontal disease in companion animals. The aims of this study were to analyse the ligation of pattern recognition receptors by P. gulae and the subsequent activation of macrophages. Exposure of HEK cells transfected with Toll-like receptors or NOD-like receptors to P. gulae resulted in the ligation of TLR2, TLR4 and NOD2. The effect of this engagement of receptors was investigated by measuring the synthesis of nitric oxide, CD86 expression and inflammatory cytokine production using wild type, TLR2-/- and TLR4-/- macrophages...
June 19, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28629622/optical-coherence-tomography-compared-with-fractional-flow-reserve-guided-approach-in-acute-coronary-syndromes-a-propensity-matched-analysis
#8
Fabrizio D'Ascenzo, Mario Iannaccone, Ovidio De Filippo, Antonio Maria Leone, Giampaolo Niccoli, Filippo Zilio, Fabrizio Ugo, Enrico Cerrato, Massimo Fineschi, Massimo Mancone, Stefano Rigattieri, Nicolas Amabile, Marco Ferlini, Gennaro Sardella, Alberto Cresti, Umberto Barbero, Pascal Motreff, Francesco Colombo, Salvatore Colangelo, Roberto Garbo, Giuseppe Biondi-Zoccai, Corrado Tamburino, Antonio Montefusco, Pierlugi Omedè, Claudio Moretti, Maurizio D'amico, Geraud Souteyrand, Fiorenzo Gaita, Ugo Limbruno, Andrea Picchi
AIM: To compare in patients with ACS (acute coronary syndromes) a PCI (percutaneous coronary intervention) approach based on FFR (fractional flow reserve) vs. one based on OCT (optical coherence tomography). METHODS AND RESULTS: Consecutive patients admitted for ACS and treated with a PCI approach based on OCT or on FFR (recruited in two different studies) were compared and matched with propensity score analysis. Target Lesion revascularization (TLR) was the primary end point, while major adverse cardiovascular events [MACEs defined as the composite of death from cardiac causes, non-fatal MI, clinically driven target vessel revascularization (TVR), or re-hospitalization due to unstable angina] were the secondary ones...
June 3, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28628927/curcumin-promotes-apoptosis-of-activated-hepatic-stellate-cells-by-inhibiting-protein-expression-of-the-myd88-pathway
#9
Ya-Jun He, Kenny Kuchta, Yan-Mei Deng, Silke Cameron, Yu Lin, Xu-You Liu, Guo-Ron Ye, Xia Lv, Yuta Kobayashi, Jian-Chang Shu
Activation and proliferation of hepatic stellate cells (HSC) play an important role in the progress of liver fibrosis. HSC activation occurs in response to inflammatory cytokines, cellular interactions with immune cells, and morphogenetic signals. The literature hints to a role of the adaptor protein MyD88 in fibrosis. Although curcumin has been shown to exert inhibitory effects on the proliferation of HSC in vitro, its influence on the MyD88 pathway in HSC has remained unclear. Here, we investigated whether curcumin accelerates apoptosis of HSC through the MyD88 pathway...
June 19, 2017: Planta Medica
https://www.readbyqxmd.com/read/28627973/profile-of-gene-expression-of-tlr-signaling-pathways-in-colorectal-cancer-tissues
#10
Martyna Bednarczyk, Małgorzata Muc-Wierzgoń, Katarzyna Walkiewicz, Teresa Kokot, Edyta Fatyga, Urszula Mazurek
Toll-like receptors (TLRs) are involved in transduction of molecular signals in immune process such as induction and regulation of immunity, production of cytokines, and recognition of specific molecular patterns on the surface of microorganisms, but also in cancer development-which was partially proven in previous studies. There is a lack of detailed research on differentiating levels of TLR expression in colorectal cancer at different stages of its advancement, so in our study we want to determine whether there is such a difference of TLRs and TLR-connected protein expression...
June 1, 2017: International Journal of Immunopathology and Pharmacology
https://www.readbyqxmd.com/read/28627266/anti-inflammatory-effect-of-a-powder-formulation-of-coconut-inflorescence-sap-against-ox-ldl-induced-inflammatory-responses-in-human-peripheral-blood-mononuclear-cells-by-modulating-tlr-nf-%C3%B2-b-signaling-pathway
#11
Ratheesh M, Svenia P Jose, Asha S, Sandya S, Girish Kumar B, Krishnakumar Im
An inflammatory response induced by oxidized low density lipoprotein (ox-LDL) was reported to play an important role in the pathogenesis of atherosclerosis. The purpose of this study was to explore the anti-inflammatory effect of a novel powder formulation of coconut inflorescence sap (CSP) against ox-LDL induced inflammatory responses in human peripheral blood mononuclear cells (hPBMCs). The hPBMCs were isolated from healthy human volunteers and cultured in collagen coated plates at 37°C. The cells were grouped as Group I (Control), Group II (ox-LDL treated) and Group III (ox-LDL+CSP treated)...
June 19, 2017: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/28626766/involvement-of-the-toll-like-receptor-nitric-oxide-signaling-pathway-in-the-pathogenesis-of-cervical-cancer-caused-by-high-risk-human-papillomavirus-infection
#12
Jie Li, Heping Rao, Chang'e Jin, Jinrong Liu
Human papillomavirus (HPV) can activate Toll-like receptor (TLR)/nitric oxide (NO) signaling pathways; however, whether the TLR/NO pathway is involved in cervical cancer caused by high-risk HPV (HR-HPV) remains unclear. In this study, 43 HR-HPV-positive patients with cervical cancer (CC group), 39 HR-HPV-positive patients with a healthy cervix (HR-HPV group), and 33 HR-HPV-negative controls were recruited. NO concentration in cervical canal and expression of inducible NO synthase (iNOS) in cervical tissues were detected...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28626202/stent-fracture-and-peri-stent-contrast-staining-after-everolimus-eluting-stent-implantation%C3%A3-5-year-outcomes
#13
Katsuya Miura, Takeshi Tada, Akinune Kuwayama, Takenobu Shimada, Masanobu Ohya, Hidewo Amano, Shunsuke Kubo, Yusuke Hyodo, Suguru Otsuru, Seiji Habara, Hiroyuki Tanaka, Yasushi Fuku, Tsuyoshi Goto, Kazushige Kadota
BACKGROUND: Stent fracture (SF) and peri-stent contrast staining (PSS) after sirolimus-eluting stent implantation are reported to be risk factors of adverse events. However, the effect of these after everolimus-eluting stent (EES) implantation on long-term outcomes remains unclear.Methods and Results:The study sample comprised 636 patients (1,081 lesions) undergoing EES implantation in 2010 and follow-up angiography within 1 year. The 5-year cumulative rates of target lesion revascularization (TLR) and major adverse cardiac events (MACE: a combination of all-cause death, myocardial infarction, and TLR) were compared between patients with and without SF or PSS...
June 13, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28625598/predictors-of-long-term-outcomes-after-drug-eluting-balloon-angioplasty-for-bare-metal-stent-restenosis
#14
Ming-Jer Hsieh, Yu-Chang Huang, Jih-Kai Yeh, Chun-Chi Chen, Dong-Yi Chen, Chia-Hung Yang, Ming-Lung Tsai, Ming-Yun Ho, Shang-Hung Chang, Chao-Yung Wang, Cheng-Hung Lee, I-Chang Hsieh
BACKGROUND: Clinical trials have investigated efficacy of drug-eluting balloon (DEB) angioplasty for bare-metal stent (BMS) in-stent restenosis (ISR). Few studies have investigated predictors of long-term outcomes following BMS-ISR treatment with DEB. METHODS: From June 2011 to April 2015, 105 patients with 125 BMS-ISR lesions were enrolled from the Cardiovascular Atherosclerosis and Percutaneous TrAnsluminal INterventions (CAPTAIN) registry. All these lesions were treated with DEB angioplasty as final therapy...
May 24, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28624699/toll-like-receptor-2-rs4696480-polymorphism-and-risk-of-oral-cancer-and-oral-potentially-malignant-disorder
#15
Camila de Barros Gallo, Xabier Marichalar-Mendia, Amaia Setien-Olarra, Amelia Acha-Sagredo, Naiara Garcia Bediaga, Maria Luisa Gainza-Cirauqui, Norberto Nobuo Sugaya, Jose Manuel Aguirre-Urizar
OBJECTIVES: The aim of this study was to identify the possible association between TLR polymorphisms and an increased risk of developing head and neck cancer, including oral (OSCC) and laryngeal squamous cell carcinoma (LSCC), and oral potentially malignant disorders, such as oral lichenoid disease (OLD), including oral lichen planus (OLP) and oral lichenoid lesions (OLL). DESIGN: This case-control study included 40 OSCC, 35 LSCC, 175 OLD (129 OLP and 46 OLL) patients and 89 healthy controls, all of them from the Basque Country, Spain...
June 6, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28624224/optimizing-the-dna-donor-template-for-homology-directed-repair-of-double-strand-breaks
#16
Fei Song, Knut Stieger
The CRISPR-Cas (clustered regularly interspaced short palindromic repeats-associated proteins) technology enables rapid and precise genome editing at any desired genomic position in almost all cells and organisms. In this study, we analyzed the impact of different repair templates on the frequency of homology-directed repair (HDR) and non-homologous end joining (NHEJ). We used a stable HEK293 cell line expressing the traffic light reporter (TLR-3) system to quantify HDR and NHEJ events following transfection with Cas9, eight different guide RNAs, and a 1,000 bp donor template generated either as circular plasmid, as linearized plasmid with long 3' or 5' backbone overhang, or as PCR product...
June 16, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28624137/effect-of-tlr-ligands-co-encapsulated-with-multiepitopic-antigen-in-nanoliposomes-targeted-to-human-dcs-via-fc-receptor-for-cancer-vaccines
#17
Felix Rueda, Christina Eich, Begoña Cordobilla, Pere Domingo, Gerardo Acosta, Fernando Albericio, Luis J Cruz, Joan C Domingo
Nanoliposomes (NLs) hold promise as new highly specific nanomedicine for anti-tumor vaccines, since they could be targeted to specific receptors on dendritic cell (DC) to induce maturation and activation and increase the anti-tumor immune response. Here we studied a NLs formulation targeted or not to FcR (the receptor for the IgG Fc fragment) for the treatment of androgen-responsive prostate cancer. Luteinizing-hormone-releasing hormone (LHRH) peptide (B- and T-cell epitopes), in tandem with a tetanus toxoid T-helper epitope (830-844 region) and several TLR (Toll-Like Receptor) ligands as adjuvants were co-encapsulated...
June 10, 2017: Immunobiology
https://www.readbyqxmd.com/read/28623271/decoy-peptide-targeted-to-toll-il-1r-domain-inhibits-lps-and-tlr4-active-metabolite-morphine-3-glucuronide-sensitization-of-sensory-neurons
#18
Yohance M Allette, Youngsook Kim, Aaron L Randolph, Jared A Smith, Matthew S Ripsch, Fletcher A White
Accumulating evidence indicates that Toll-like receptor (TLR) signaling adapter protein interactions with Toll/Interleukin-1 Receptor (TIR) domains present in sensory neurons may modulate neuropathic pain states. Following ligand interaction with TLRs, TIR serves to both initiate intracellular signaling and facilitate recruitment of signaling adapter proteins to the intracytoplasmic domain. Although TLR TIR is central to a number of TLR signaling cascades, its role in sensory neurons is poorly understood. In this study we investigated the degree to which TLR TIR decoy peptide modified to include a TAT sequence (Trans-Activator of Transcription gene in HIV; TAT-4BB) affected LPS-induced intracellular calcium flux and excitation in sensory neurons, and behavioral changes due to TLR4 active metabolite, morphine-3-glucuronide (M3G) exposure in vivo...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28622534/increased-expression-of-toll-like-receptors-2-and-9-is-associated-with-reduced-dna-methylation-in-spontaneous-preterm-labor
#19
Scott W Walsh, Anuja A Chumble, Sonya L Washington, Kellie J Archer, Sinem E Sahingur, Jerome F Strauss
The cause of spontaneous preterm labor (sPTL) is not known, but it could be due to epigenetic alterations that increase the sensitivity of decidual tissue to inflammatory stimuli. We collected decidual tissue from women at term not in labor (TNL), women at term in labor (TL), and women with sPTL. Illumina Infinium HumanMethylation450 BeadChip analysis revealed significantly reduced DNA methylation for TLR-2 and TLR-9 in sPTL as compared to TL. Immunohistochemical staining documented significantly increased expression of TLR-2 and TLR-9 in decidual tissue of women with sPTL as compared to TL or TNL...
June 3, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28621230/lncrna-crnde-triggers-inflammation-through-the-tlr3-nf-%C3%AE%C2%BAb-cytokine-signaling-pathway
#20
Haowen Li, Qi Li, Tao Guo, Wenyan He, Chengya Dong, Yajie Wang
Colorectal neoplasia differentially expressed (CRNDE), an oncogene, is highly expressed in many tumor cells and affects cellular proliferation, migration, invasion, and apoptosis. Its function and mechanism of action is a research hotspot. In this study, microarray analysis was performed to discover the differentially expressed genes in CRNDE over-expression cells. RT² Profiler PCR Array was used to study the expression of genes related to the toll-like receptor (TLR) pathway. We found that over-expression of CRNDE in astrocytes increased the expression of key factors in the toll-like receptor signaling pathway, especially toll-like receptor-3-mediated MyD88-independent pathway...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
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