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Cytokine signal transduction

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https://www.readbyqxmd.com/read/29042364/a-cd200r-cd28-fusion-protein-appropriates-an-inhibitory-signal-to-enhance-t-cell-function-and-therapy-of-murine-leukemia
#1
Shannon K Oda, Andrew W Daman, Nicolas M Garcia, Felecia Wagener, Thomas M Schmitt, Xiaoxia Tan, Aude G Chapuis, Philip D Greenberg
Acute myeloid leukemia (AML), the most common adult acute leukemia in the U.S., has the poorest survival rate, with 26% of patients surviving 5 years. Adoptive immunotherapy with T cells genetically modified to recognize tumors is a promising and evolving treatment option. However, antitumor activity, particularly in the context of progressive leukemia, can be dampened both by limited costimulation and triggering of immunoregulatory checkpoints that attenuate T cell responses. Expression of CD200 (OX2), a negative regulator of T cell function that binds CD200R, is commonly increased in leukemia and other malignancies, and is associated with poor prognosis in leukemia patients...
October 17, 2017: Blood
https://www.readbyqxmd.com/read/29032156/suppressor-of-cytokine-signaling-2-12-regulates-antimicrobial-peptides-and-ecdysteroid-signaling-pathways-in-bombyx-mori-dazao
#2
Muhammad Nadeem Abbas, Bao-Jian Zhu, Saima Kausar, Li-Shang Dai, Yu-Xuan Sun, Ji Wu Tian, Chao-Liang Liu
Suppressors of cytokine signaling (SOCS) are a potent negative regulator of diverse cytokine-related responses to maintain various physiological processes in animals. Here, we obtained the SOCS2-12 gene sequence of Bombyx mori (Dazao) (BmSOCS2-12) from the National Center for Biotechnology Information (NCBI) to study its expression profile in different tissues, as well as in the immune tissues following larval exposure to pathogens. Further, we investigated the role of BmSOCS2-12 in producing antimicrobial peptides (AMPs) and as a regulator of ecdysteroid signaling transduction...
October 12, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/29031697/ubiquitin-modifying-enzymes-and-regulation-of-the-inflammasome
#3
REVIEW
Michael G Kattah, Barbara A Malynn, Averil Ma
Ubiquitin and ubiquitin-modifying enzymes play critical roles in a wide variety of intracellular signaling pathways. Inflammatory signaling cascades downstream of TNF, TLR agonists, antigen receptor cross-linking, and cytokine receptors, all rely on ubiquitination events to direct subsequent immune responses. In the past several years, inflammasome activation and subsequent signal transduction have emerged as an excellent example of how ubiquitin signals control inflammatory responses. Inflammasomes are multiprotein signaling complexes that ultimately lead to caspase activation and release of the interleukin-1 (IL-1) family members, IL-1β and IL-18...
October 12, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/29020964/il-27-mediates-hla-class-i-up-regulation-which-can-be-inhibited-by-the-il-6-pathway-in-hla-deficient-small-cell-lung-cancer-cells
#4
Grazia Carbotti, Amin Reza Nikpoor, Paola Vacca, Rosaria Gangemi, Chiara Giordano, Francesco Campelli, Silvano Ferrini, Marina Fabbi
BACKGROUND: Recently, immunotherapy with anti-PD-1 antibodies has shown clinical benefit in recurrent Small Cell Lung Cancer (SCLC). Since anti-PD-1 re-activates anti-tumor Cytotoxic T Lymphocyte (CTL) responses, it is crucial to understand the mechanisms regulating HLA class I, and PD-L1 expression in HLA-negative SCLC. Here we addressed the role of IL-27, a cytokine related to both IL-6 and IL-12 families. METHODS: The human SCLC cell lines NCI-N592, -H69, -H146, -H446 and -H82 were treated in vitro with different cytokines (IL-27, IFN-γ, IL-6 or a soluble IL-6R/IL-6 chimera [sIL-6R/IL-6]) at different time points and analyzed for tyrosine-phosphorylated STAT proteins by Western blot, for surface molecule expression by immunofluorescence and FACS analyses or for specific mRNA expression by QRT-PCR...
October 11, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28990423/dupilumab-for-the-treatment-of-asthma
#5
Corrado Pelaia, Alessandro Vatrella, Luca Gallelli, Rosa Terracciano, Paolo Navalesi, Rosario Maselli, Girolamo Pelaia
Dupilumab is a fully human IgG4 monoclonal antibody directed against the α subunit of the interleukin (IL)-4 receptor (IL-4Rα). Since the activation of IL-4Rα is utilized by both IL-4 and IL-13 to mediate their pathophysiological effects, dupilumab behaves as a dual antagonist of these two sister cytokines, which blocks IL-4/IL-13-dependent signal transduction. Areas covered: Herein, the authors review the cellular and molecular pathways activated by IL-4 and IL-13, which are relevant to asthma pathobiology...
October 8, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28990087/sirna-directed-against-nf%C3%A2-%C3%AE%C2%BAb-inhibits-mononuclear-macrophage-cells-releasing-proinflammatory-cytokines-in%C3%A2-vitro
#6
Chunting Wu, Jiahui Zhao, Guangfa Zhu, Yan Huang, Liyan Jin
Acute lung injury (ALI) is a condition of acute respiratory failure, characterized by diffuse pulmonary infiltrates and severe hypoxemia. During ALI, the acute phase of inflammation induces the recruitment of activated inflammatory cells, including macrophages and lymphocytes, to the damaged lesions. Nuclear factor (NF)‑κB is a key protein in many signal transduction pathways, over‑activation of which is followed by an approach of inflammation cells and release of pre‑inflammation cytokines. The aim of the present study was to explore the effect of NF‑κB P65 siRNA retroviruses on the activation of NF‑κB signaling pathway and release of pro‑inflammatory cytokines in THP‑1 cells...
October 4, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28977852/loss-of-calponin-h1-confers-anoikis-resistance-and-tumor-progression-in-the-development-of-high-grade-serous-carcinoma-originating-from-the-fallopian-tube-epithelium
#7
Kai-Hung Wang, Sung-Chao Chu, Tang-Yuan Chu
Increasing evidence indicates that ovarian high-grade serous carcinoma (HGSC) originates from the fallopian tube epithelium and metastasizes to the ovary as the secondary site. A working hypothesis is that detached tubal HGSC cells survive anoikis and implant on the ovary. In this study, we found that downregulation of calponin h1 (CNN1) is necessary for the anoikis survival and cell transformation. CNN1 was progressively downregulated in cells and tissues representing different stages of HGSC development from fallopian tube epithelium (FTE)...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28977795/il-27-modulates-chemokine-production-in-tnf-%C3%AE-stimulated-human-oral-epithelial-cells
#8
Yoshitaka Hosokawa, Ikuko Hosokawa, Kazumi Ozaki, Takashi Matsuo
BACKGROUND/AIMS: Interleukin-27 (IL-27) is a cytokine which belongs to the IL-12 family. However, the role of IL-27 in the pathogenesis of periodontal disease is uncertain. The aim of this study was to examine the effect of IL-27 on chemokine production in TNF-α-stimulated human oral epithelial cells (TR146). METHODS: We measured chemokine production in TR146 by ELISA. We used western blot analysis to detect the phosphorylation levels of signal transduction molecules, including STAT1 and STAT3 in TR146...
October 5, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28976997/transcription-analysis-of-the-responses-of-porcine-heart-to-erysipelothrix-rhusiopathiae
#9
Chao Kang, Qiang Zhang, Weifeng Zhu, Chengzhi Cai, Xiaomei Sun, Meilin Jin
Erysipelothrix rhusiopathiae (E. rhusiopathiae) is the causative agent of swine erysipelas. This microbe has caused great economic losses in China and in other countries. In this study, high-throughput cDNA microarray assays were employed to evaluate the host responses of porcine heart to E. rhusiopathiae and to gain additional insights into its pathogenesis. A total of 394 DE transcripts were detected in the active virulent E. rhusiopathiae infection group compared with the PBS group at 4 days post-infection...
2017: PloS One
https://www.readbyqxmd.com/read/28969526/evaluating-mrna-expression-levels-of-the-tlr4-irf5-signaling-axis-during-hepatic-ischemia-reperfusion-injuries
#10
Meysam Nasiri, Mostafa Saadat, Mohammad-Hossein Karimi, Negar Azarpira, Iraj Saadat
OBJECTIVES: Hepatic ischemia and reperfusion during liver transplant surgery result in hepatocellular damage. Toll-like receptors, especially TLR4, have a fundamental basic role in the inflammatory phase of ischemia-reperfusion injuries. The effect of the TRIF-dependent signaling pathway downstream of TLR4 in hepatic ischemia-reperfusion injury has been well established. However, the role of TLR4-MyD88-dependent signal transduction in hepatic ischemia-reperfusion injury has not yet been clarified...
September 30, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28961195/choline-and-choline-alphoscerate-do-not-modulate-inflammatory-processes-in-the-rat-brain
#11
Seyed Khosrow Tayebati, Ilenia Martinelli, Michele Moruzzi, Francesco Amenta, Daniele Tomassoni
Choline is involved in relevant neurochemical processes. In particular, it is the precursor and metabolite of acetylcholine (ACh). Choline is an essential component of different membrane phospholipids that are involved in intraneuronal signal transduction. On the other hand, cholinergic precursors are involved in ACh release and carry out a neuroprotective effect based on an anti-inflammatory action. Based on these findings, the present study was designed to evaluate the effects of choline and choline precursor (Choline alphoscerate, GPC) in the modulation of inflammatory processes in the rat brain...
September 29, 2017: Nutrients
https://www.readbyqxmd.com/read/28959263/deciphering-of-the-human-interferon-regulated-proteome-by-mass-spectrometry-based-quantitative-analysis-reveals-extent-and-dynamics-of-protein-induction-and-repression
#12
Dominik A Megger, Jos Philipp, Vu Thuy Khanh Le-Trilling, Barbara Sitek, Mirko Trilling
Interferons (IFNs) are pleotropic cytokines secreted upon encounter of pathogens and tumors. Applying their antipathogenic, antiproliferative, and immune stimulatory capacities, recombinant IFNs are frequently prescribed as drugs to treat different diseases. IFNs act by changing the gene expression profile of cells. Due to characteristics such as rapid gene induction and signaling, IFNs also represent prototypical model systems for various aspects of biomedical research (e.g., signal transduction). In regard to the signaling and activated promoters, IFNs can be subdivided into two groups...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28957531/fibroblasts-and-the-extracellular-matrix-in-right-ventricular-disease
#13
Nikolaos G Frangogiannis
Right ventricular failure predicts adverse outcome in patients with pulmonary hypertension (PH), and in subjects with left ventricular heart failure and is associated with interstitial fibrosis. This review manuscript discusses the cellular effectors and molecular mechanisms implicated in right ventricular fibrosis. The right ventricular interstitium contains vascular cells, fibroblasts, and immune cells, enmeshed in a collagen-based matrix. Right ventricular pressure overload in PH is associated with the expansion of the fibroblast population, myofibroblast activation, and secretion of extracellular matrix proteins...
October 1, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28955045/effect-of-transforming-growth-factor-%C3%AE-upon-taenia-solium-and-taenia-crassiceps-cysticerci
#14
Laura Adalid-Peralta, Gabriela Rosas, Asiel Arce-Sillas, Raúl J Bobes, Graciela Cárdenas, Marisela Hernández, Celeste Trejo, Gabriela Meneses, Beatriz Hernández, Karel Estrada, Agnes Fleury, Juan P Laclette, Carlos Larralde, Edda Sciutto, Gladis Fragoso
Taeniids exhibit a great adaptive plasticity, which facilitates their establishment, growth, and reproduction in a hostile inflammatory microenvironment. Transforming Growth Factor-β (TGFβ), a highly pleiotropic cytokine, plays a critical role in vertebrate morphogenesis, cell differentiation, reproduction, and immune suppression. TGFβ is secreted by host cells in sites lodging parasites. The role of TGFβ in the outcome of T. solium and T. crassiceps cysticercosis is herein explored. Homologues of the TGFβ family receptors (TsRI and TsRII) and several members of the TGFβ downstream signal transduction pathway were found in T...
September 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28946660/molecular-mechanisms-and-pathways-as-targets-for-cancer-prevention-and-progression-with-dietary-compounds
#15
REVIEW
Nagisa Nosrati, Marica Bakovic, Gopinadhan Paliyath
A unique feature of bioactive food ingredients is their broad antioxidant function. Antioxidants having a wide spectrum of chemical structure and activity beyond basic nutrition; display different health benefits by the prevention and progression of chronic diseases. Functional food components are capable of enhancing the natural antioxidant defense system by scavenging reactive oxygen and nitrogen species, protecting and repairing DNA damage, as well as modulating the signal transduction pathways and gene expression...
September 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28944843/microarray-and-bioinformatics-analyses-of-gene-expression-profiles-in-balb-c-murine-macrophage-polarization
#16
Li Jiang, Xueqin Li, Yingying Zhang, Mengying Zhang, Zongsheng Tang, Kun Lv
Macrophages possess the hallmark feature of plasticity, allowing them to undergo a dynamic transition between M1 and M2 polarized phenotypes. The aim of the present study was to screen for differentially-expressed genes (DEGs) that were associated with BALB/c murine macrophage polarization. The transcription profiles of three M1 and three M2 samples were obtained using microarray analysis. Based on the threshold of fold‑change >2.0 and P‑value <0.05, a total of 1,253 DEGs were identified, of which 696 were upregulated and 557 downregulated in M1 macrophages compared with M2 macrophages...
November 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28939528/functional-activities-of-interferon-gamma-in-large-yellow-croaker-larimichthys-crocea
#17
Sisi Yang, Qiuhua Li, Yinnan Mu, Jingqun Ao, Xinhua Chen
Interferon gamma (IFN-γ) is a T helper cell type 1 (Th1) cytokine that plays important roles in almost all phases of immune and inflammatory responses. Although IFN-γ gene in large yellow croaker Larimichthys crocea has been reported, little is known about its bioactivity. In this study, large yellow croaker IFN-γ (LycIFN-γ) gene was found to be constitutively expressed in all tissues tested, with the highest levels in blood and heart. Based on stimulation with polyinosinic-polycytidylic acid [poly (I:C)] or inactivated trivalent bacterial vaccine, LycIFN-γ mRNA was significantly increased in spleen and head kidney tissues...
September 20, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28934926/irs-1-py612-and-akt-1-pkb-pt308-phosphorylation-and-antiinflammatory-effect-of-diindolylmethane-in-adipocytes-cocultured-with-macrophages
#18
Alfonso López-Vázquez, Jesús Garcia-Bañuelos, Angélica González-Garibay, Pedro Urzúa-Lozano, Del Toro-Arreola Susana, Miriam Bueno-Topete, Sergio Sánchez-Enríquez, José Muñoz-Valle, Luis Jave-Suárez, Juan Armendáriz-Borunda, Vlanca Bastidas-Ramírez
BACKGROUND: 3,3'-Diindolylmethane (DIM) is a condensation product of indole-3-carbinol, a glucosinolate naturally occurring in Brassica genus vegetables. The antiinflammatory properties of DIM through the inhibition of NF-κB, as well as its ameliorating effects on glucose tolerance and hyperglicemic states, have been described. A subclinical proinflammatory profile resultant from the interaction of adipocytes and macrophages have been reported in obesity, affecting the insulin signaling pathway, contributing to insulin resistance...
September 21, 2017: Medicinal Chemistry
https://www.readbyqxmd.com/read/28928970/the-role-of-hyperuricemia-on-vascular-endothelium-dysfunction
#19
Haitao Zhen, Fen Gui
Hyperuricemia appears to be associated with an increased risk for cardiovascular disease and associated mortality. Population epidemiological data support a causal link between hyperuricemia and cardiovascular disease. Endothelium injury could be one of the potential mechanisms in hyperuricemia-induced cardiovascular disease. However, the specific role of uric acid (UA) in the impairment of vascular relaxation and its signal transduction pathway has not been examined. The authors investigated the role of UA on vascular relaxation, nitric oxide (NO) production and expression of proinflammatory cytokines...
October 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28928827/inhibition-of-c-myc-expression-accounts-for-an-increase-in-the-number-of-multinucleated-cells-in-human-cervical-epithelial-cells
#20
Feng Mei Cui, Xiu Jin Sun, Cheng Cheng Huang, Qiu Chen, Yong Ming He, Shi Meng Zhang, Hua Guan, Man Song, Ping Kun Zhou, Jun Hou
The present study aimed to explore the mechanisms by which c-Myc is involved in mitotic catastrophe. HeLa-630 is a cell line stably silenced for c-Myc expression that was established in the laboratory of the School of Radiation Medicine and Protection. Multinucleated cells were observed in this line, and gene expression analysis was utilized to examine differences in gene expression in these cells compared with in the control cells transfected with the control plasmid. Gene ontology analysis was performed for differentially expressed genes...
September 2017: Oncology Letters
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