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https://www.readbyqxmd.com/read/28528178/expanding-biological-activities-of-ts19-frag-ii-toxin-insights-into-il-17-production
#1
Felipe Augusto Cerni, Manuela Berto Pucca, Karina Furlani Zoccal, Fabiani Gai Frantz, Lucia Helena Faccioli, Eliane Candiani Arantes
Tityus serrulatus (Ts) venom is composed of a mixture of toxins presenting diverse biological functions. However, although this venom has been studied over the past three decades, omics analysis revealed that most of its toxins are not identified or their biological activities are unknown. Ts19 Frag-II is included is this group, which function is still uncertain. This study aimed to expand the biological activities of Ts19 Frag-II through in vivo investigation. Our results demonstrates that mice challenged with Ts19 Frag-II presented biochemical alterations, increasing serum levels of urea, ALT and β-globulin, besides decreasing γ-globulins...
May 17, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28526808/the-impact-of-interleukin-10-il-10-gene-4-polymorphisms-on-peripheral-blood-il-10-variation-and-prostate-cancer-risk-based-on-published-studies
#2
Tingting Men, Cuicui Yu, Dan Wang, Fang Liu, Jingjing Li, Xiaoying Qi, Chunhua Yang, Wenguo Jiang, Xiaodan Wei, Xuri Li, Bin Wang, Jia Mi, Geng Tian
This study purported to investigate the impact of interleukin-10 (IL-10) gene 4 polymorphisms (-1082G>A, -819T>C, -592A>C and 210T>C) on peripheral blood IL-10 variation and prostate cancer (PCa) risk, with a special consideration given to various origins of between-study heterogeneity. 2 researchers independently fulfilled literature retrieval, quality assessment and information collection. Sub-grouped analyses per ethnicity, continent, design type, control source, genotyping procedure, genotype validation, age-matched status, study sample size, quality score and controls' mean age were conducted, respectively...
April 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28526557/the-frog-skin-host-defense-peptide-frenatin-2-1s-enhances-recruitment-activation-and-tumoricidal-capacity-of-nk-cells
#3
Jelena M Pantic, Ivan P Jovanovic, Gordana D Radosavljevic, Nevena M Gajovic, Nebojsa N Arsenijevic, J Michael Conlon, Miodrag L Lukic
Frog skin is a source of peptides with various biological properties. Frenatin 2.1S, derived from norepinephrine-stimulated skin secretions of the Orinoco lime tree frog Sphaenorhynchus lacteus, exhibits immunostimulatory effects as demonstrated by the promotion of proinflammatory phenotypes of mononuclear cells in mouse peritoneal cavity and spleen. The aim of this study was to identify the populations of host cells sensitive to the action of frenatin 2.1S in vivo and to study its effects on their functional antitumor capacity...
May 16, 2017: Peptides
https://www.readbyqxmd.com/read/28526442/comparative-study-of-interleukin-17c-il-17c-and-il-17d-in-large-yellow-croaker-larimichthys-crocea-reveals-their-similar-but-differential-functional-activity
#4
Yang Ding, Jingqun Ao, Xinhua Chen
Interleukin 17 (IL-17) family members are key players in regulating the immune response in mammals. Here, we identified the IL-17C and IL-17D homologs from large yellow croaker (Larimichthys crocea), named LcIL-17C and LcIL-17D, respectively. The deduced LcIL-17C and LcIL-17D proteins possessed the typical IL-17 domain and shared a conserved arrangement of eight cysteine residues. Both LcIL-17C and LcIL-17Dc genes were constitutively expressed in all tissues examined, although at different levels. After challenge with Aeromonas hydrophila, the expression of LcIL-17C and LcIL-17D was significantly increased in gills, head kidney, and spleen...
May 16, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28526436/intracranial-il-17a-overexpression-decreases-cerebral-amyloid-angiopathy-by-upregulation-of-abca1-in-an-animal-model-of-alzheimer-s-disease
#5
Junling Yang, Jinghong Kou, Robert Lalonde, Ken-Ichiro Fukuchi
Neuroinflammation is a pervasive feature of Alzheimer's disease (AD) and characterized by activated microglia, increased proinflammatory cytokines and/or infiltrating immune cells. T helper 17 (Th17) cells are found in AD brain parenchyma and interleukin-17A (IL-17A) is identified around deposits of aggregated amyloid β protein (Aβ). However, the role of IL-17A in AD pathogenesis remains elusive. We overexpressed IL-17A in an AD mouse model via recombinant adeno-associated virus serotype 5 (rAAV5)-mediated intracranial gene delivery...
May 16, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28526351/docosahexaenoyl-serotonin-emerges-as-most-potent-inhibitor-of-il-17-and-ccl-20-released-by-blood-mononuclear-cells-from-a-series-of-n-acyl-serotonins-identified-in-human-intestinal-tissue
#6
Ya Wang, Michiel G J Balvers, Henk F J Hendriks, Tessa Wilpshaar, Tjarda van Heek, Renger F Witkamp, Jocelijn Meijerink
Fatty acid amides (FAAs), conjugates of fatty acids with ethanolamine, mono-amine neurotransmitters or amino acids are a class of molecules that display diverse functional roles in different cells and tissues. Recently we reported that one of the serotonin-fatty acid conjugates, docosahexaenoyl serotonin (DHA-5-HT), previously found in gut tissue of mouse and pig, attenuates the IL-23-IL-17 signaling axis in LPS-stimulated mice macrophages. However, its presence and effects in humans remained to be elucidated...
May 16, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28526072/differences-in-serum-and-synovial-cd4-t-cells-and-cytokine-profiles-to-stratify-patients-with-inflammatory-osteoarthritis-and-rheumatoid-arthritis
#7
Alessandra Penatti, Federica Facciotti, Roberta De Matteis, Paola Larghi, Moira Paroni, Antonella Murgo, Orazio De Lucia, Massimiliano Pagani, Luca Pierannunzii, Marcello Truzzi, Andreea Ioan-Facsinay, Sergio Abrignani, Jens Geginat, Pier Luigi Meroni
BACKGROUND: The aim was to investigate CD4(+)T-cell subsets, immune cells and their cytokine profiles in blood and synovial compartments in rheumatoid arthritis (RA) and inflammatory osteoarthritis (OA) to define specific immune signatures. METHODS: Peripheral blood, synovial fluid (SF) and synovial membranes (SM) of RA and OA patients were analyzed. CD4(+)T-cell subset frequencies were determined by flow cytometry, and cytokine concentrations in serum and SF were measured by ELISA...
May 19, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28524834/wild-type-p53-induced-phosphatase-1-deficiency-exacerbates-myocardial-infarction-induced-ischemic-injury
#8
Ke-Mei Liu, Hai-Hong Zhang, Ya-Nan Wang, Lian-Mei Wang, Hong-Yu Chen, Cai-Feng Long, Lian-Feng Zhang, Hong-Bing Zhang, Hong-Bing Yan
BACKGROUND: Myocardial infarction (MI) is a major disease burden. Wild-type p53-induced phosphatase 1 (Wip1) has been studied extensively in the context of cancer and the regulation of different types of stem cells, but the role of Wip1 in cardiac adaptation to MI is unknown. We investigated the significance of Wip1 in a mouse model of MI. METHODS: The study began in June 2014 and was completed in July 2016. We compared Wip1-knockout (Wip1-KO) mice and wild-type (WT) mice to determine changes in cardiac function and survival in response to MI...
June 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28524086/dietary-green-pea-protects-against-dss-induced-colitis-in-mice-challenged-with-high-fat-diet
#9
Shima Bibi, Luís Fernando de Sousa Moraes, Noelle Lebow, Mei-Jun Zhu
Obesity is a risk factor for developing inflammatory bowel disease. Pea is unique with its high content of dietary fiber, polyphenolics, and glycoproteins, all of which are known to be health beneficial. We aimed to investigate the impact of green pea (GP) supplementation on the susceptibility of high-fat diet (HFD)-fed mice to dextran sulfate sodium (DSS)-induced colitis. Six-week-old C57BL/6J female mice were fed a 45% HFD or HFD supplemented with 10% GP. After 7-week dietary supplementation, colitis was induced by adding 2...
May 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28524025/-effect-of-esmolol-on-hemodynamics-and-clinical-outcomes-in-patients-with-septic-shock
#10
Shupeng Wang, Min Li, Jun Duan, Li Yi, Xu Huang, Desheng Chen, Gang Li
OBJECTIVE: To evaluate the effect of heart rate control with esmolol on hemodynamics, inflammatory cytokines and clinical outcomes in patients with septic shock. METHODS: A prospective randomized controlled trial was conducted. The patients with septic shock admitted to Department of Critical Care Medicine of China-Japan Friendship Hospital from August 2014 to October 2016 were enrolled. After 24 hours of resuscitation and other therapy, they were randomly divided into two groups by sealed envelope...
May 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28524018/comparison-of-the-immune-responses-associated-with-experimental-bovine-mastitis-caused-by-different-strains-of-escherichia-coli
#11
Shlomo E Blum, Elimelech D Heller, Shamay Jacoby, Oleg Krifucks, Gabriel Leitner
We studied the mammary immune response to different mammary pathogenic Escherichia coli (MPEC) strains in cows, hypothesising that the dynamics of response would differ. E. coli is a major aetiologic agent of acute clinical bovine mastitis of various degrees of severity with specific strains being associated with persistent infections. We compared challenge with three distinct pathogenic MPEC strains (VL2874, VL2732 and P4), isolated from different forms of mastitis (per-acute, persistent and acute, respectively)...
May 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/28523362/transoral-endoscopic-thyroidectomy-our-initial-experience-using-a-new-endoscopic-technique
#12
Jun-Ook Park, Dong-Il Sun
BACKGROUND: A transoral approach has been experimentally introduced to the field of thyroid surgery and several groups in Asia have recently used the technique to treat patients. We performed transoral endoscopic thyroidectomies on patients with thyroid cancer or a benign tumor. METHODS: We reviewed the medical records of patients who underwent transoral endoscopic thyroid surgery between July 2016 and January 2017. A midline incision was made in the vestibule, and a 10 mm cannula was placed; then, the working space was widened by insufflating CO2 at a pressure of 5-6 mmHg...
May 18, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28522873/recombinant-bcg-expressing-ltak63-adjuvant-induces-superior-protection-against-mycobacterium-tuberculosis
#13
Ivan P Nascimento, Dunia Rodriguez, Carina C Santos, Eduardo P Amaral, Henrique K Rofatto, Ana P Junqueira-Kipnis, Eduardo D C Gonçalves, Maria R D'Império-Lima, Mario H Hirata, Celio L Silva, Nathalie Winter, Brigitte Gicquel, Kingston H G Mills, Mariagrazia Pizza, Rino Rappuoli, Luciana C C Leite
In order to develop an improved BCG vaccine against tuberculosis we have taken advantage of the adjuvant properties of a non-toxic derivative of Escherichia coli heat labile enterotoxin (LT), LTAK63. We have constructed rBCG strains expressing LTAK63 at different expression levels. Mice immunized with BCG expressing low levels of LTAK63 (rBCG-LTAK63lo) showed higher Th1 cytokines and IL-17 in the lungs, and when challenged intratracheally with Mycobacterium tuberculosis displayed a 2.0-3.0 log reduction in CFU as compared to wild type BCG...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522399/anti-allergic-and-profilaggrin-proflg-mrna-expression-modulatory-effects-of-sacran
#14
Nlandu R Ngatu, Keiichi Motoyama, Yasumitsu Nishimura, Maiko Kaneko Okajima, Ryoji Hirota, Taishi Higashi, Suni Lee, Hidetoshi Arima, Mitsunori Ikeda, Sayumi Nojima, Tatsuo Kaneko
Atopic dermatitis (AD) is a skin disorder characterized by filaggrin (FLG) defect. We evaluated sacran's effects on dust-mite extracts (DME)-induced AD-like disease and also its effect on profilaggrin (proFLG) in a murine model of 2,4-dinitroflurobenze (DNFB)-induced contact hypersensitivity. In the murine AD-like disease model, allergic NC/Nga mice (N=60) were randomly divided into five treatment groups of 12 animals each: 0.2% and 1%sacran; 0.1% Tacrolimus; Vaseline and buffer-treated controls. Blood samples were drawn and serum levels of representative Th-1, Th-2 and also Th-17 (IL-17A) cytokines were assayed by Cytometric Bead Array (CBA)...
May 15, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28522256/sporadic-early-onset-diffuse-gastric-cancers-have-high-frequency-of-somatic-cdh1-alterations-but-low-frequency-of-somatic-rhoa-mutations-compared-with-late-onset-cancers
#15
Soo Young Cho, Jun Won Park, Yang Liu, Young Soo Park, Ju Hee Kim, Hanna Yang, Hyejin Um, Woo Ri Ko, Byung Il Lee, Sun Young Kwon, Seung Wan Ryu, Chae Hwa Kwon, Do Youn Park, Jae-Hyuk Lee, Sang Il Lee, Kyu Sang Song, Hoon Hur, Sang-Uk Han, Heekyung Chang, Su-Jin Kim, Byung-Sik Kim, Jeong-Hwan Yook, Moon-Won Yoo, Beom-Su Kim, In-Seob Lee, Myeong-Cherl Kook, Nina Thiessen, An He, Chip Stewart, Andrew Dunford, Jaegil Kim, Juliann Shih, Gordon Saksena, Andrew D Cherniack, Steven Schumacher, Amaro-Taylor Weiner, Mara Rosenberg, Gad Getz, Eun Gyeong Yang, Min Hee Ryu, Adam J Bass, Hark Kyun Kim
BACKGROUND & AIMS: Early-onset gastric cancer, which develops in younger patients than most gastric cancers, is usually detected at advanced stages, has diffuse histologic features, and occurs more frequently in women. We investigated somatic genomic alterations associated with the unique characteristics of sporadic diffuse gastric cancers (DGCs) from younger patients. METHODS: We conducted whole exome and RNA sequence analyses of 80 resected DGC samples from patients 45 years old or younger in Korea...
May 15, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28522011/vaccination-with-a-live-attenuated-acinetobacter-baumannii-deficient-in-thioredoxin-provides-protection-against-systemic-acinetobacter-infection
#16
Sarah Ainsworth, Patrick M Ketter, Jieh-Juen Yu, Rose C Grimm, Holly C May, Andrew P Cap, James P Chambers, M Neal Guentzel, Bernard P Arulanandam
Multi-drug resistant Acinetobacter baumannii (MDR-Ab), an opportunistic pathogen associated with nosocomial and combat related infections, has a high mortality due to its virulence and limited treatment options. Deletion of the thioredoxin gene (TrxA) from a clinical isolate of MDR-Ab resulted in a 100-fold increase in 50% lethal dose (LD50) in a systemic challenge murine model. Thus, we investigated the potential use of this attenuated strain as a live vaccine against MDR-Ab. Mice were vaccinated by subcutaneous (s...
May 15, 2017: Vaccine
https://www.readbyqxmd.com/read/28521607/intravenous-fish-oil-and-pediatric-intestinal-failure-associated-liver-disease-changes-in-plasma-phytosterols-cytokines-and-bile-acids-and-erythrocyte-fatty-acids
#17
Kara L Calkins, Andrea DeBarber, Robert D Steiner, Martiniano J Flores, Tristan R Grogan, Susanne M Henning, Laurie Reyen, Robert S Venick
BACKGROUND: Soybean oil (SO) emulsions are associated with intestinal failure-associated liver disease (IFALD); fish oil (FO) emulsions are used to treat IFALD. SO and FO differ with respect to their fatty acid and phytosterol content. In children with IFALD whose SO was replaced with FO, we aimed to (1) quantify changes in erythrocyte fatty acids and plasma phytosterols, cytokines, and bile acids and (2) correlate these changes with direct bilirubin (DB). DESIGN: This study enrolled IFALD children who received 6 months of FO...
May 1, 2017: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28521565/interleukin-17-inhibition-role-in-psoriasis-and-inflammatory-bowel-disease
#18
Megan Hohenberger, Leah A Cardwell, Elias Oussedik, Steven R Feldman
INTRODUCTION: Interleukin 17 (IL-17) antagonism provides a highly effective approach for treating psoriasis. Exacerbations of inflammatory bowel disease have been reported in anti-IL-17 psoriasis trials. AIM: To characterize the relationship between IL-17 inhibition and inflammatory bowel disease. METHODS: A review of English-language articles was performed. Search terms included IL-17, psoriasis, inflammatory bowel disease, secukinumab, ixekizumab, and brodalumab...
May 18, 2017: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/28521477/t-cell-immunity-induced-by-a-bivalent-salmonella-based-ceacam6-and-4-1bbl-vaccines-in-a-rat-colorectal-cancer-model
#19
Chunhui Jin, Xiaoqing Duan, Yingying Liu, Jianhong Zhu, Ke Zhang, Yuanting Zhang, Tingting Xia, Yajun Fei, Jianxin Ye
The present study investigated the anti-tumor mechanisms of recombinant non-specific cross-reacting antigen (CEACAM6) and 4-1BB ligand (4-1BBL) Salmonella-based vaccines, and the effect that these vaccinations have on memory T cells and T helper (Th) cell polarization. Colon tumors were induced in rats via 1,2-dimethylhydrazine (DMH) injections. Rats were then treated with injections of attenuated Salmonella typhimurium carrying pIRES-CEACAM6, pIRES-4-1BBL or pIRES-CEACAM6-4-1BBL. In total, 4 vaccine injections, one every other week, were administered during the 8 weeks subsequent to the DMH injection...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28521432/interleukin-17-augments-tumor-necrosis-factor-%C3%AE-mediated-increase-of-hypoxia-inducible-factor-1%C3%AE-and-inhibits-vasodilator-stimulated-phosphoprotein-expression-to-reduce-the-adhesion-of-breast-cancer-cells
#20
Kuang Changchun, Hu Pengchao, Su Ke, Wang Ying, Wei Lei
Interleukin-17 (IL-17) and tumor necrosis factor (TNF)-α are able to cooperatively alter the expression levels of a number of genes. In the present study, the mRNA expression levels of hypoxia-inducible factor (HIF)-1α were analyzed in MDA-MB-231 breast cancer cells following treatment with IL-17, TNF-α or the combination of IL-17 and TNF-α. The protein expression levels of HIF-1α and vasodilator-stimulated phosphoprotein (VASP) were evaluated using western blot analysis. The adhesive ability of the cells was determined using an MTT assay following treatment with HIF-1α-small interfering RNA and short hairpin RNA-VASP that were used to suppress the expression levels of HIF-1α and VASP protein, respectively...
May 2017: Oncology Letters
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