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Cytokine signal transduction

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https://www.readbyqxmd.com/read/29453978/venlafaxine-prevents-morphine-antinociceptive-tolerance-the-role-of-neuroinflammation-and-the-l-arginine-nitric-oxide-pathway
#1
Mohammad Taghi Mansouri, Bahareh Naghizadeh, Behnam Ghorbanzadeh, Soheila Alboghobeish, Neda Amirgholami, Gholamreza Houshmand, Omar Cauli
Opioid-induced neuroinflammation and the nitric oxide (NO) signal-transduction pathway are involved in the development of opioid analgesic tolerance. The antidepressant venlafaxine (VLF) modulates NO in nervous tissues, and so we investigated its effect on induced tolerance to morphine, neuroinflammation, and oxidative stress in mice. Tolerance to the analgesic effects of morphine were induced by injecting mice with morphine (50 mg/kg) once a day for three consecutive days; the effect of co-administration of VLF (5 or 40 mg/kg) with morphine was similarly tested in a separate group...
February 14, 2018: Experimental Neurology
https://www.readbyqxmd.com/read/29438224/erlotinib-protects-lps-induced-acute-lung-injury-in-mice-by-inhibiting-egfr-tlr4-signaling-pathway
#2
Huan Tao, Na Li, Zhao Zhang, Honglan Mu, Chen Meng, Huimin Xia, Lisha Fu, Younian Xu, Shihai Zhang
Epidermal growth factor receptor (EGFR) has been reported to initiate the inflammatory response, but its activation in lipopolysaccharide (LPS)-induced murine model of acute lung injury (ALI) remains unclear. In this study, we investigated the role of EGFR in the LPS-induced murine model of ALI and explored whether its inhibitor erlotinib could affect the progression of lung injury. We first detected the phosphorylated EGFR (p-EGFR)/EGFR ratio at different time points after LPS stimulation, and then different concentrations of erlotinib were used to treat mice at 1 h before LPS stimulation and collected samples at the time point of the highest p-EGFR/EGFR ratio...
February 12, 2018: Shock
https://www.readbyqxmd.com/read/29435195/decorin-is-a-pivotal-effector-in-the-extracellular-matrix-and-tumour-microenvironment
#3
REVIEW
Wen Zhang, Yan Ge, Qian Cheng, Qi Zhang, Lin Fang, Junnian Zheng
Decorin (DCN), an extracellular matrix (ECM) protein, belongs to the small leucine-rich proteoglycan family. As a pluripotent molecule, DCN regulates the bioactivities of cell growth factors and participates in ECM assembly. Accumulating evidence has shown that DCN acts as a ligand of various cytokines and growth factors by directly or indirectly interacting with the corresponding signalling molecules involved in cell growth, differentiation, proliferation, adhesion and metastasis and that DCN especially plays vital roles in cancer cell proliferation, spread, pro-inflammatory processes and anti-fibrillogenesis...
January 12, 2018: Oncotarget
https://www.readbyqxmd.com/read/29434594/p38%C3%AE-and-p38%C3%AE-are-involved-in-t-lymphocyte-development
#4
Ana Risco, Miguel A Martin-Serrano, Domingo F Barber, Ana Cuenda
p38 mitogen-activated protein kinase (MAPK) signal transduction pathways are essential regulators of the immune response. Particularly, p38γ and p38δ regulate many immune cell functions such as cytokine production, migration, or T cell activation; however, their involvement in immune cell development is largely unknown. Here, we analysed the role of p38 MAPK isoforms p38γ and p38δ in T cell differentiation in the thymus and in lymph nodes, using mice deficient in p38γ, p38δ, or in both. We found that the T cell differentiation program in the thymus was affected at different stages in p38γ-, p38δ-, and p38γ/δ-deficient mice, and also peripheral T cell homaeostasis was compromised...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29429758/the-immunobiology-of-mucosal-associated-invariant-t-cell-mait-function-in-primary-biliary-cholangitis-regulation-by-cholic-acid-induced-interleukin-7
#5
Xiang Jiang, Min Lian, Yanmei Li, Weici Zhang, Qixia Wang, Yiran Wei, Jun Zhang, Weihua Chen, Xiao Xiao, Qi Miao, Zhaolian Bian, Dekai Qiu, Jingyuan Fang, Aftab A Ansari, Patrick S C Leung, Ross L Coppel, Ruqi Tang, M Eric Gershwin, Xiong Ma
Mucosal-associated invariant T (MAIT) cells are novel innate-like T cells constituting a significant proportion of circulating and hepatic T cells. Herein, we extensively examine the phenotypical and functional alterations of MAIT cells and their regulation in a cohort of 56 patients with Primary Biliary Cholangitis (PBC) and 53 healthy controls (HC). Additionally alterations of MAIT cells were assessed before and after UDCA treatment. Finally the localization of MAIT cell in liver was examined using specific tetramer staining and the underlying mechanisms of these alterations in PBC were explored...
February 8, 2018: Journal of Autoimmunity
https://www.readbyqxmd.com/read/29427592/establishment-of-engineered-cell-based-assays-mediating-lag3-and-pd1-immune-suppression-enables-potency-measurement-of-blocking-antibodies-and-assessment-of-signal-transduction
#6
Bhagyashree Bhagwat, Holly Cherwinski, Manjiri Sathe, Wolfgang Seghezzi, Terrill K McClanahan, Rene de Waal Malefyt, Aarron Willingham
LAG3 is an important regulator of T cell homeostasis and studies in mouse tumor models have demonstrated that simultaneously antagonizing LAG3 and PD1 can augment tumor-specific T cell responses and induce tumor rejection. The combined use of LAG3 antagonist antibodies with established anti-PD1 therapies is currently being evaluated in human clinical trials. A functional assay for human LAG3 was developed by co-culture of a Jurkat T-cell lymphoma line overexpressing LAG3 with a Raji B-cell lymphoma line in the presence of staphylococcal enterotoxins...
February 7, 2018: Journal of Immunological Methods
https://www.readbyqxmd.com/read/29425209/retinal-genes-are-differentially-expressed-in-areas-of-primary-versus-secondary-degeneration-following-partial-optic-nerve-injury
#7
Wissam Chiha, Chrisna J LeVaillant, Carole A Bartlett, Alex W Hewitt, Phillip E Melton, Melinda Fitzgerald, Alan R Harvey
BACKGROUND: Partial transection (PT) of the optic nerve is an established experimental model of secondary degeneration in the central nervous system. After a dorsal transection, retinal ganglion cells (RGCs) with axons in ventral optic nerve are intact but vulnerable to secondary degeneration, whereas RGCs in dorsal retina with dorsal axons are affected by primary and secondary injuries. Using microarray, we quantified gene expression changes in dorsal and ventral retina at 1 and 7 days post PT, to characterize pathogenic pathways linked to primary and secondary degeneration...
2018: PloS One
https://www.readbyqxmd.com/read/29422542/protection-of-nigral-dopaminergic-neurons-by-aav1-transduction-with-rheb-s16h-against-neurotoxic-inflammation-in-vivo
#8
Sehwan Kim, Gyeong Joon Moon, Yong-Seok Oh, Jungha Park, Won-Ho Shin, Jae Yeong Jeong, Kwang Shik Choi, Byung Kwan Jin, Nikolai Kholodilov, Robert E Burke, Hyung-Jun Kim, Chang Man Ha, Seok-Geun Lee, Sang Ryong Kim
We recently reported that adeno-associated virus serotype 1 (AAV1) transduction of murine nigral dopaminergic (DA) neurons with constitutively active ras homolog enriched in brain with a mutation of serine to histidine at position 16 [Rheb(S16H)] induced the production of neurotrophic factors, resulting in neuroprotective effects on the nigrostriatal DA system in animal models of Parkinson's disease (PD). To further investigate whether AAV1-Rheb(S16H) transduction has neuroprotective potential against neurotoxic inflammation, which is known to be a potential event related to PD pathogenesis, we examined the effects of Rheb(S16H) expression in nigral DA neurons under a neurotoxic inflammatory environment induced by the endogenous microglial activator prothrombin kringle-2 (pKr-2)...
February 9, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29417309/il-33-can-promote-the-process-of-pulmonary-fibrosis-by-inducing-the-imbalance-between-mmp-9-and-timp-1
#9
Liyan Wu, Zujin Luo, Jinxu Zheng, Peng Yao, Zhenyan Yuan, Xiaohong Lv, Jing Zhao, Min Wang
IL-33 played an important role in inflammatory diseases as evidenced by their high levels of expression in diseased tissues. Previous studies showed that IL-33/ST2L signal transduction pathway participated in epithelial-mesenchymal transition (EMT) of A549 cells. Cytokine IL-1β can increase the expression of MMPs by activating NF-kB. The excessive or inappropriate expression of MMP-9 may randomly and non-selectively destroy the extracellular matrix. TIMP-1 (tissue inhibitor of MMP-9) effects on ebb and flow of ECM by inhibiting activation of MMP-9...
February 7, 2018: Inflammation
https://www.readbyqxmd.com/read/29410270/molecular-mechanisms-of-immunomodulatory-activity-by-polysaccharide-isolated-from-the-peels-of-citrus-unshiu
#10
Myoung-Sook Shin, Su Beom Park, Kwang-Soon Shin
The extracts of the Citrus unshiu fruit induce numerous biological activities such as anticancer, anti-adipogenic, and antimicrobial effects. Furthermore, its peel has been used as a Chinese medicine for centuries and is consumed as a tea in China, Japan, and Korea. We investigated the effects of the polysaccharide isolated from C. unshiu peel (CPE-II) on cytokine and inflammatory mediator production in RAW 264.7 macrophages and performed signal transduction experiments to identify the pathways involved in its actions...
February 2, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29409726/intranuclear-delivery-of-the-transcription-modulation-domain-of-tbet-improved-lupus-nephritis-in-nzb-nzw-f1-lupus-prone-mice
#11
Jae-Seung Moon, Chin Hee Mun, Jung-Ho Kim, Jen-Young Cho, Sung-Dong Park, Tae-Yoon Park, Jin-Su Shin, Chun-Chang Ho, Yong-Beom Park, Sankar Ghosh, Alfred L M Bothwell, Sang-Won Lee, Sang-Kyou Lee
Excessive expression of Tbet and IFNγ is evidence of systemic lupus erythematosus (SLE) in lupus patients. In this study, the nucleus-transducible form of Transcription Modulation Domain (TMD) of Tbet (ntTbet-TMD), which is a fusion protein between Protein Transduction Domain Hph-1 (Hph-1-PTD) and the TMD of Tbet comprising DNA binding domain and isotype-specific domain, was generated to inhibit Tbet-mediated transcription in the interactomic manner. ntTbet-TMD was effectively delivered into the nucleus of the cells and specifically inhibited Tbet-mediated transcription without influencing the differentiation of other T cell subsets and signaling events for T cell activation...
February 3, 2018: Kidney International
https://www.readbyqxmd.com/read/29406386/low-shear-stress-upregulates-the-expression-of-fractalkine-through-the-activation-of-mitogen-activated-protein-kinases-in-endothelial-cells
#12
Amanguli Ruze, Yiwei Zhao, Hui Li, Xiayimaidan Gulireba, Jing Li, Dongyu Lei, Hongyan Dai, Jiang Wu, Xin Zhao, Yongmei Nie
: Fractalkine (FKN) is a cytokine which plays an important role in atherosclerosis and other inflammatory diseases. Studies have shown that FKN induces integrin-independent leukocyte adhesion to primary endothelial cells under physiological flow conditions. Further, increased expression of FKN has been demonstrated in atherosclerotic lesions induced by low shear stress. However, the signal transduction mechanisms involved in low shear stress-induced FKN upregulation are not well characterized. In this study, EA...
February 5, 2018: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/29405371/disclosing-the-physiology-of-dental-pulp-for-vital-pulp-therapy
#13
REVIEW
W L O da Rosa, E Piva, A F Silva
The discovery that dentine is a reservoir of bioactive molecules that can be recruited on demand has attracted efforts to develop new protocols and materials for vital pulp therapy (VPT). The non-collagenous proteins (NCPs) present in the dentine extracellular matrix (ECM) include growth factors (TGF-β1, BMP-7, FGF-2, IGF-1 and -2, NGF, and GDNF), extracellular matrix molecules (DSP, DPP, BSP, DMP-1, and DSPP), and both anti- and pro-inflammatory chemokines and cytokines (TNF-α, IL-1, IL-6, and IL-10). Molecules such as DSP and DPP are mainly expressed by odontoblasts, and they are cleaved products from dentine sialophosphoprotein (DSPP)...
February 6, 2018: International Endodontic Journal
https://www.readbyqxmd.com/read/29402895/visualization-and-quantification-of-dynamic-stat3-homodimerization-in-living-cells-using-homofluoppi
#14
Yusuke Okada, Taku Watanabe, Toru Shoji, Kyoko Taguchi, Naohisa Ogo, Akira Asai
Dimerization in signal transduction is a dynamically regulated process and a key regulatory mechanism. Signal transducer and activator of transcription 3 (STAT3) dimerizes after tyrosine phosphorylation upon cytokine stimulation. Because only the STAT3 dimer possesses the trans-activation activity, dimerization is an indispensable process for cytokine signaling. Here we report the detection of dynamic STAT3 dimerization in living cells using the homoFluoppi system. This method allowed us to validate the presence of an intact Src homology 2 domain and STAT3 Tyr705 phosphorylation, which facilitate puncta formation and homodimerization...
February 5, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29400705/taok1-negatively-regulates-il-17-mediated-signaling-and-inflammation
#15
Zhaoru Zhang, Zhen Tang, Xianwei Ma, Kai Sun, Liping Fan, Jie Fang, Jianping Pan, Xiaojian Wang, Huazhang An, Jun Zhou
Interleukin 17 (IL-17) is an important cytokine that can induce tissue inflammation and is involved in the pathogenesis of numerous autoimmune diseases. However, the regulation of its signaling transduction has not been well described. In this study, we report that thousand and one kinase 1 (TAOK1) functions as a negative regulator of IL-17-mediated signal transduction and inflammation. TAOK1 knockdown promotes IL-17-induced cytokine and chemokine expression and the activation of mitogen-activated protein kinases and nuclear factor-κB...
February 5, 2018: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/29388044/mir-145-improves-macrophage-mediated-inflammation-through-targeting-arf6
#16
Rumei Li, Qiwei Shen, Nan Wu, Min He, Naijia Liu, Jinya Huang, Bin Lu, Qiyuan Yao, Yehong Yang, Renming Hu
PURPOSE: To explore the relationship between miR-145 and ADP ribosylation factor 6 (Arf6) in regulating macrophage-mediated inflammation. METHODS: THP-1 cells were induced by 160 nM of phorbol 12-myristate 13-acetate (PMA) for 48 h to differentiate to macrophages and then were treated with LPS (100 ng/ml) for 8 h to simulate chronic metabolic inflammation in vitro. Dual-luciferase reporter assay was performed. MiR-145 siRNA and LV-ARF6-RNAi were used to up or down regulate miR-145 and Arf6 expression in THP-1 cells, respectively...
January 31, 2018: Endocrine
https://www.readbyqxmd.com/read/29386194/improving-t-cell-expansion-and-function-for-adoptive-t-cell-therapy-using-ex-vivo-treatment-with-pi3k%C3%AE-inhibitors-and-vip-antagonists
#17
Christopher T Petersen, Mojibade Hassan, Anna B Morris, Jasmin Jeffery, Kunhee Lee, Neera Jagirdar, Ashley D Staton, Sunil S Raikar, Harold T Spencer, Todd Sulchek, Christopher R Flowers, Edmund K Waller
Adoptive therapy with ex vivo-expanded genetically modified antigen-specific T cells can induce remissions in patients with relapsed/refractory cancer. The clinical success of this therapy depends upon efficient transduction and expansion of T cells ex vivo and their homing, persistence and cytotoxicity following reinfusion. Lower rates of ex vivo expansion and clinical response using anti-CD19 chimeric antigen receptor (CAR) T cells have been seen in heavily pretreated lymphoma patients compared with B-cell acute lymphoblastic leukemia patients and motivate the development of novel strategies to enhance ex vivo T cell expansion and their persistence in vivo...
February 13, 2018: Blood Advances
https://www.readbyqxmd.com/read/29382485/proteomic-changes-in-a-childhood-acute-lymphoblastic-leukemia-cell-line-during-the-adaptation-to-vincristine
#18
Ana Laura Guzmán-Ortiz, Gerardo Aparicio-Ozores, Ricardo Valle-Rios, Oscar Medina-Contreras, Genaro Patiño-López, Héctor Quezada
INTRODUCTION: Relapse occurs in approximately 20% of Mexican patients with childhood acute lymphoblastic leukemia (ALL). In this group, chemoresistance may be one of the biggest challenges. An overview of complex cellular processes like drug tolerance can be achieved with proteomic studies. METHODS: The B-lineage pediatric ALL cell line CCRF-SB was gradually exposed to the chemotherapeutic vincristine until proliferation was observed at 6nM, control cells were cultured in the absence of vincristine...
May 2017: Boletín Médico del Hospital Infantil de México
https://www.readbyqxmd.com/read/29378215/roles-of-trafs-in-nf-%C3%AE%C2%BAb-signaling-pathways-mediated-by-baff
#19
REVIEW
Xiaoyu Tang, Lingling Zhang, Wei Wei
B cell activating factor (BAFF) is an important cytokine for the maintenance of B cell development, survival and homeostasis. BAFF/BAFF-R could directly activate nuclear factor kappa B (NF-κB) pathway. Tumour necrosis factor receptor-associated factors (TRAFs) are key regulatory proteins in NF-κB signaling pathways. TRAF1 enhances the activation of tumor necrosis factor receptor 2 (TNF-R2) induced by NF-κB. TRAF2 and TRAF3 signal adapters act cooperatively to control the maturation and survival signals mediated by BAFF receptor...
January 25, 2018: Immunology Letters
https://www.readbyqxmd.com/read/29374568/diverse-functions-of-protein-tyrosine-phosphatase-%C3%AF-in-the-nervous-and-immune-systems
#20
REVIEW
Yosuke Ohtake, Atsushi Saito, Shuxin Li
Tyrosine phosphorylation is a common means of regulating protein functions and signal transduction in multiple cells. Protein tyrosine phosphatases (PTPs) are a large family of signaling enzymes that remove phosphate groups from tyrosine residues of target proteins and change their functions. Among them, receptor-type PTPs (RPTPs) exhibit a distinct spatial pattern of expression and play essential roles in regulating neurite outgrowth, axon guidance, and synaptic organization in developmental nervous system...
January 25, 2018: Experimental Neurology
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