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https://www.readbyqxmd.com/read/28630024/proteolytic-control-of-interleukin-11-and-interleukin-6-biology
#1
REVIEW
Juliane Lokau, Maria Agthe, Charlotte M Flynn, Christoph Garbers
Interleukin-11 (IL-11) and IL-6 are secreted glycoproteins which fulfill important homeostatic functions. Activation of target cells occurs via membrane-bound IL-11 and IL-6 receptors (IL-11R and IL-6R, respectively). Formation of IL-11/IL-11R and IL-6/IL-6R complexes triggers the recruitment of a homodimer of the ubiquitously expressed signal-transducing β-receptor gp130 (classic signaling). IL-11R and IL-6R can be shed by several proteases, albeit with different preferences and specificities, and these soluble receptors (sIL-11R and sIL-6R) act as agonists and can activate in principle all cells via gp130...
June 16, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28620096/interleukin-6-family-cytokines
#2
Stefan Rose-John
The interleukin (IL)-6 family cytokines is a group of cytokines consisting of IL-6, IL-11, ciliary neurotrophic factor (CNTF), leukemia inhibitory factor (LIF), oncostatin M (OSM), cardiotrophin 1 (CT-1), cardiotrophin-like cytokine (CLC), and IL-27. They are grouped into one family because the receptor complex of each cytokine contains two (IL-6 and IL-11) or one molecule (all others cytokines) of the signaling receptor subunit gp130. IL-6 family cytokines have overlapping but also distinct biologic activities and are involved among others in the regulation of the hepatic acute phase reaction, in B-cell stimulation, in the regulation of the balance between regulatory and effector T cells, in metabolic regulation, and in many neural functions...
June 15, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28596035/the-pharmacokinetic-and-pharmacodynamic-properties-of-site-specific-pegylated-genetically-modified-recombinant-human-interleukin-11-in-normal-and-thrombocytopenic-monkeys
#3
Shan-Shan Ma, Seong-Hyun Ho, Su-Yong Ma, Yue-Juan Li, Kai-Tong Li, Xiao-Chuang Tang, Guang-Rong Zhao, Song-Shan Xu
In order to improve the pharmacokinetic and pharmacodynamic properties of recombinant human interleukin-11 mutein (mIL-11) and to reduce the frequency of administration, we examined the feasibility of chemical modification of mIL-11 by methoxy polyethylene glycol succinimidyl carbonate (mPEG-SC). PEG-mIL-11 was prepared by a pH controlled amine specific method. Bioactivity of the protein was determined in a IL-11-dependent in vitro bioassay, its pharmacodynamic and pharmacokinetic properties were investigated by using normal and thrombocytopenic monkey models...
June 5, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28552376/involvement-of-stat1-in-proliferation-and-invasiveness-of-trophoblastic-cells
#4
Francisco Lázaro Pereira de Sousa, Wittaya Chaiwangyen, Diana M Morales-Prieto, Stephanie Ospina-Prieto, Maja Weber, Stella M Photini, Nelson Sass, Silvia Daher, Ekkehard Schleussner, Udo R Markert
Trophoblast proliferation and invasion are controlled by cytokines and growth factors present at the implantation site. Members of the Interleukin-6 (IL-6) family of cytokines trigger their effects through activation of intracellular cascades including the Janus Kinase/Signal Transducer and Activator of Transcription (JAK-STAT) pathway. Functions of several STAT molecules in trophoblast cells have been described, but the role of STAT1 remained unclear. Here, potential functions of STAT1 and its activation by Oncostatin M (OSM) have been investigated in an in vitro model...
May 25, 2017: Reproductive Biology
https://www.readbyqxmd.com/read/28546021/sodium-butyrate-improved-intestinal-immune-function-associated-with-nf-%C3%AE%C2%BAb-and-p38mapk-signalling-pathways-in-young-grass-carp-ctenopharyngodon-idella
#5
Li Tian, Xiao-Qiu Zhou, Wei-Dan Jiang, Yang Liu, Pei Wu, Jun Jiang, Sheng-Yao Kuang, Ling Tang, Wu-Neng Tang, Yong-An Zhang, Fei Xie, Lin Feng
The present study evaluated the effect of dietary sodium butyrate (SB) supplementation on the growth and immune function in the proximal intestine (PI), middle intestine (MI) and distal intestine (DI) of young grass carp (Ctenopharyngodon idella). The fish were fed one powdery sodium butyrate (PSB) diet (1000.0 mg kg(-1) diet) and five graded levels of microencapsulated sodium butyrate (MSB) diets: 0.0 (control), 500.0, 1000.0, 1500.0 and 2000.0 mg kg(-1) diet for 60 days. Subsequently, a challenge test was conducted by injection of Aeromonas hydrophila...
May 22, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28521851/regulation-of-interleukin-11-expression-in-ovulatory-follicles-of-the-rat-ovary
#6
You-Jee Jang, You-Jee Jang, Jae-Il Park, Jae-Il Park, Seong-Eun Jeong, Seong-Eun Jeong, You-Mi Seo, You-Mi Seo, Phuong T M Dam, Phuong T M Dam, Young-Woo Seo, Young-Woo Seo, Bum-Chae Choi, Bum-Chae Choi, Sang-Jin Song, Sang-Jin Song, Sang-Young Chun, Sang-Young Chun, Moon-Kyoung Cho, Moon-Kyoung Cho
The aim of the present study was to examine the regulation of interleukin (IL)-11 expression, as well as the role of IL-11, during ovulation in gonadotropin-primed immature rats. Injection of equine chorionic gonadotropin (eCG), followed by human CG (hCG) to induce superovulation stimulated expression of the Il11 gene in theca cells within 6h, as revealed by northern blot and in situ hybridisation analyses. Real-time reverse transcription-polymerase chain reaction analysis showed that the IL-11 receptor, α subunit gene was expressed in granulosa and theca cells and that injection of hCG had no effect on its expression...
May 19, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28487027/interleukin-11-up-regulates-endoplasmic-reticulum-stress-induced-target-pdia4-in-human-first-trimester-placenta-and-in%C3%A2-vivo-in-mice
#7
A L Winship, K Sorby, J Correia, A Rainczuk, J Yap, E Dimitriadis
Interleukin (IL)11 is a crucial factor for human trophoblast function and placentation. Elevated levels are associated with pregnancy complications including preeclampsia, intrauterine growth restriction (IUGR) and preterm birth. However, the regulation of IL11 in the placenta has not been investigated. We examined the effect of pro-inflammatory cytokines IL1β and TNFα, as well as low oxygen tension (2%) on IL11 levels in first trimester placental villous explants. IL1β upregulated IL11 mRNA and protein, while TNFα and low oxygen had no effect...
May 2017: Placenta
https://www.readbyqxmd.com/read/28486793/inflammatory-bowel-disease-updates-on-molecular-targets-for-biologics
#8
REVIEW
Konstantinos H Katsanos, Konstantinos A Papadakis
Therapy for inflammatory bowel disease (IBD) has changed, with several new agents being evaluated. The era of anti-tumor necrosis factor (anti-TNF) antibody therapy saw remarkable progress in IBD therapy. Some patients, however, do not respond to anti-TNF treatment, or their response decreases over time. This phenomenon highlights the need to identify new molecular targets for therapy in IBD. The targets of new therapeutic molecules in IBD must aim to restore immune dysregulation by the inhibition of proinflammatory cytokines (TNF-α, interleukin [IL]-6, IL-13, IL-17, IL-18, and IL-21) and augmentation of the effect of anti-inflammatory cytokines (IL-10, IL-11, and transforming growth factor β) and to pursue new anti-inflammatory targets, such as regulatory T-cell therapy, Smad7 antisense, Janus-activated kinase inhibition, Toll-like receptor stimulation, leukocyte adhesion, and blockade of T-cell homing via integrins and mucosal addressin cellular adhesion molecule-1...
May 11, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28473863/role-of-acupoint-area-collagen-fibers-in-anti-inflammation-of-acupuncture-lifting-and-thrusting-manipulation
#9
Fan Wang, Guang-Wei Cui, Le Kuai, Jian-Min Xu, Ting-Ting Zhang, Huai-Jin Cheng, Hong-Sheng Dong, Gui-Rong Dong
The role of the acupoint area collagen fibers in the efficacy of acupuncture lifting and thrusting (L&T) manipulation will be explored in this paper. 30 male NZW rabbits were randomly divided into 6 groups: sham operation group (Group N), model group (Group M), acupuncture without manipulation group (Group W), acupuncture L&T manipulation group (Group A), collagenase pretreatment group (Group JM), and collagenase pretreatment + acupuncture L&T manipulation group (Group JA). The bacterial endotoxin was used to generate the rabbit fever models...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28469796/low-dose-radiation-modulates-human-mesenchymal-stem-cell-proliferation-through-regulating-cdk-and-rb
#10
Lei Yang, Ziling Liu, Chen Chen, Xiaofeng Cong, Zhi Li, Shasha Zhao, Meng Ren
Low-dose radiation (LDR) has been known to stimulate cell proliferation. The effect of LDR on human bone marrow mesenchymal stem cells (BMSCs), however, remains to be determined. The current study, therefore, aimed to investigate the effect of LDR on human BMSC proliferation and its mechanisms. To accomplish this, human BMSCs were isolated from ribs and cultured with or without exposition to LDR (75 mGy) for 24 h. Cell proliferation was assessed by MTT assay, the cytokines secreted by the BMSCs were quantified by ELISA, and the proteins associated with cell proliferation and cell cycle were evaluated by immunoblot analysis...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28447514/neuroprotective-effects-of-ellagic-acid-on-cuprizone-induced-acute-demyelination-through-limitation-of-microgliosis-adjustment-of-cxcl12-il-17-il-11-axis-and-restriction-of-mature-oligodendrocytes-apoptosis
#11
Nima Sanadgol, Fereshteh Golab, Zakiyeh Tashakkor, Nooshin Taki, Samira Moradi Kouchi, Ali Mostafaie, Mehdi Mehdizadeh, Mohammad Abdollahi, Ghorban Taghizadeh, Mohammad Sharifzadeh
CONTEXT: Ellagic acid (EA) is a natural phenol antioxidant with various therapeutic activities. However, the efficacy of EA has not been examined in neuropathologic conditions. OBJECTIVE: In vivo neuroprotective effects of EA on cuprizone (cup)-induced demyelination were evaluated. MATERIAL AND METHODS: C57BL/6 J mice were fed with chow containing 0.2% cup for 4 weeks to induce oligodendrocytes (OLGs) depletion predominantly in the corpus callosum (CC)...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28400554/essential-turmeric-oils-enhance-anti-inflammatory-efficacy-of-curcumin-in-dextran-sulfate-sodium-induced-colitis
#12
Shusuke Toden, Arianne L Theiss, Xuan Wang, Ajay Goel
Turmeric has been used as a medicinal herb for thousands of years for treatment of various disorders. Although curcumin is the most studied active constituents of turmeric, accumulating evidence suggests that other components of turmeric have additional anti-inflammatory and anti-tumorigenic properties. Herein, we investigated anti-inflammatory efficacy and associated gene expression alterations of a specific, curcumin preparation containing essential turmeric oils (ETO-curcumin) in comparison to standard curcumin at three specific doses (0, 5, 25 or 50 mg/kg), in an animal model of dextran sodium sulfate (DSS)-induced colitis...
April 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28390266/relationship-between-serum-25-hydroxyvitamin-d-and-inflammatory-cytokines-in-paediatric-sickle-cell-disease
#13
Samuel Ademola Adegoke, Olufemi Samuel Smith, Adekunle D Adekile, Maria Stella Figueiredo
BACKGROUND: Alteration in the concentration of inflammatory cytokines may contribute to pathogenesis in sickle cell anaemia (SCA). Vitamin D may suppress pro-inflammatory cytokines and enhance anti-inflammatory cytokines. OBJECTIVE: To compare steady state levels of pro-and anti-inflammatory cytokines of Nigerian SCA children with age- and sex-matched healthy controls, and determine the relationship with 25-hydroxyvitamin-D (25-OHD). Effects of three months of vitamin D supplementation on cytokines of SCA children with suboptimal 25-OHD were also evaluated...
April 5, 2017: Cytokine
https://www.readbyqxmd.com/read/28363952/cd73-derived-adenosine-and-tenascin-c-control-cytokine-production-by-epicardium-derived-cells-formed-after-myocardial-infarction
#14
Julia Hesse, Stella Leberling, Elisabeth Boden, Daniela Friebe, Timo Schmidt, Zhaoping Ding, Peter Dieterich, Andreas Deussen, Claudia Roderigo, Christine R Rose, Doreen M Floss, Jürgen Scheller, Jürgen Schrader
Epicardium-derived cells (EPDCs) play a fundamental role in embryonic cardiac development and are reactivated in the adult heart in response to myocardial infarction (MI). In this study, EPDCs from post-MI rat hearts highly expressed the ectoenzyme CD73 and secreted the profibrotic matricellular protein tenascin-C (TNC). CD73 on EPDCs extensively generated adenosine from both extracellular ATP and NAD. This in turn stimulated the release of additional nucleotides from a Brefeldin A-sensitive intracellular pool via adenosine-A2BR signaling, forming a positive-feedback loop...
March 31, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28352325/analysis-of-clinical-effects-and-mechanism-of-recombinant-human-interleukin-11-with-glucocorticoids-for-treatment-of-idiopathic-thrombocytopenic-purpura
#15
Xifeng Wu, Lijuan Wang, Lin Sun, Tantan Li, Xuehong Ran
The aim of the present study was to evaluate the effectiveness and safety of recombinant human interleukin-11 (IL-11) with glucocorticoids for treatment of adult idiopathic thrombocytopenic purpura (ITP) and the regulatory effect on immune mechanisms. A total of 80 patients with initial diagnosis of ITP admitted to our hospital were selected. Patients were randomly divided into the control group and observation group, with 40 cases each. The control group received glucocorticoids treatment, and the observation group received IL-11 and glucocorticoids...
February 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28321811/interleukin-2-old-and-new-approaches-to-enhance-immune-therapeutic-efficacy
#16
Pooja Dhupkar, Nancy Gordon
Interleukin-2 (IL-2) is a very well-known cytokine that has been studied for the past 35 years. It plays a major role in the growth and proliferation of many immune cells such NK and T cells. It is an important immunotherapy cytokine for the treatment of various diseases including cancer. Systemic delivery of IL-2 has shown clinical benefit in renal cell carcinoma and melanoma patients. However, its use has been limited by the numerous toxicities encountered with the systemic delivery. Intravenous IL-2 causes the well-known "capillary leak syndrome," or the leakage of fluid from the circulatory system to the interstitial space resulting in hypotension (low blood pressure), edema, and dyspnea that can lead to circulatory shock and eventually cardiopulmonary collapse and multiple organ failure...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28293407/thrombocytopenia-in-patients-with-chronic-hepatitis-c-virus-infection
#17
REVIEW
Sumit Dahal, Smrity Upadhyay, Rashmi Banjade, Prajwal Dhakal, Nabin Khanal, Vijaya Raj Bhatt
Thrombocytopenia in patients with chronic hepatitis C virus (HCV) infection is a major problem. The pathophysiology is multifactorial, with auto-immunogenicity, direct bone marrow suppression, hypersplenism, decreased production of thrombopoietin and therapeutic adverse effect all contributing to thrombocytopenia in different measures. The greatest challenge in the care of chronic HCV patients with thrombocytopenia is the difficulty in initiating or maintaining IFN containing anti-viral therapy. Although at present, it is possible to avoid this challenge with the use of the sole Direct Antiviral Agents (DAAs) as the primary treatment modality, thrombocytopenia remains of particular interest, especially in cases of advanced liver disease...
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/28289419/cytokine-signatures-in-mucocutaneous-and-ocular-beh%C3%A3-et-s-disease
#18
Giuseppe Lopalco, Orso Maria Lucherini, Antonio Lopalco, Vincenzo Venerito, Claudia Fabiani, Bruno Frediani, Mauro Galeazzi, Giovanni Lapadula, Luca Cantarini, Florenzo Iannone
Behçet's disease (BD) is a multi-systemic inflammatory disorder consisting of recurrent oral aphthosis, genital ulcers, and chronic relapsing bilateral uveitis; however, many other organs may be affected. Several pro-inflammatory cytokines, mainly derived from Th1 and Th17 lymphocytes, seem to be involved in different pathogenic pathways leading to development of the clinical manifestations. On this basis, the primary aim of our study was to compare a core set of pro-inflammatory cytokines between patients with BD and healthy control (HC)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28228280/autocrine-loop-involving-il-6-family-member-lif-lif-receptor-and-stat4-drives-sustained-fibroblast-production-of-inflammatory-mediators
#19
Hung N Nguyen, Erika H Noss, Fumitaka Mizoguchi, Christine Huppertz, Kevin S Wei, Gerald F M Watts, Michael B Brenner
Fibroblasts are major contributors to and regulators of inflammation and dominant producers of interleukin-6 (IL-6) in inflammatory diseases like rheumatoid arthritis. Yet, compared to leukocytes, the regulation of inflammatory pathways in fibroblasts is largely unknown. Here, we report that analyses of genes coordinately upregulated with IL-6 pointed to STAT4 and leukemia inhibitory factor (LIF) as potentially linked. Gene silencing revealed that STAT4 was required for IL-6 transcription. STAT4 was recruited to the IL-6 promoter after fibroblast activation, and LIF receptor (LIFR) and STAT4 formed a molecular complex that, together with JAK1 and TYK2 kinases, controlled STAT4 activation...
February 21, 2017: Immunity
https://www.readbyqxmd.com/read/28186993/therapeutically-blocking-interleukin-11-receptor-%C3%AE-enhances-doxorubicin-cytotoxicity-in-high-grade-type-i-endometrioid-tumours
#20
Amy Winship, Michelle Van Sinderen, Katarzyna Rainczuk, Evdokia Dimitriadis
High grade type I endometrial cancers have poor prognosis. Interleukin (IL)11 is elevated in tumours and uterine lavage with increasing tumour grade in women. IL11 regulates cell cycle, invasion and migration and we recently demonstrated that IL11 receptor (R)α inhibition impaired low and moderate grade endometrial tumourigenesis in vivo. In this report, we hypothesized that micro-RNA(miR)-1 regulates IL11 and that IL11 promotes high grade endometrial tumour growth. We aimed to determine whether combination treatment using an anti-human IL11Rα blocking antibody (Ab) and doxorubicin chemotherapeutic impairs high grade tumour growth...
April 4, 2017: Oncotarget
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