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https://www.readbyqxmd.com/read/29054964/gene-expression-profiling-of-the-notch-ahr-il22-axis-at-homeostasis-and-in-response-to-tissue-injury
#1
Marc Weidenbusch, Severin Rodler, Shangqing Song, Simone Romoli, Julian A Marschner, Franziska Kraft, Alexander Holderied, Santosh Kumar, Shrikant R Mulay, Mohsen Honarpisheh, Satish Kumar Devarapu, Maciej Lech, Hans-Joachim Anders
Notch and Interleukin-22 signaling are known to regulate tissue homeostasis and response to injury in humans and mice, and the induction of endogenous arylhydrocarbon receptor ligands through Notch links the two pathways in a hierarchical fashion. However, in adults the species-, organ- and injury-specific gene expression of the Notch-AhR-IL22 axis components is unknown. We therefore performed gene expression profiling of DLL1, DLL3, DLL4, DLK1, DLK2, JAG1, JAG2, Notch1, Notch2, Notch3, Notch4, ADAM17/TACE, PSEN1, BSG/CD147, RBP-J, HES1, HES5, HEY1, HEYL, AHR, ARNT, ARNT2, CYP1A1, CYP24A1, IL22, IL22RA1, IL22RA2, IL10RB, and STAT3 under homeostatic conditions in 10 mature murine and human organs...
October 20, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/29054602/stat1-gain-of-function-and-stat3-loss-of-function-mutations-impair-il-17-and-il-22-immunity-associated-with-cmc
#2
Julia Hiller, Beate Hagl, Renate Effner, Anne Puel, Martin Schaller, Birgit Mascher, Stefanie Eyerich, Kilian Eyerich, Annette F Jansson, Johannes Ring, Jean-Laurent Casanova, Ellen D Renner, Claudia Traidl-Hoffmann
No abstract text is available yet for this article.
October 17, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29052277/src-promotes-egf-induced-epithelial-to-mesenchymal-transition-and-migration-in-gastric-cancer-cells-by-upregulating-zeb1-and-zeb2-through-akt
#3
Lei Zhao, Xin Li, Na Song, Aodi Li, Kezuo Hou, Xiujuan Qu, Xiaofang Che, Yunpeng Liu
Epithelial-to-mesenchymal transition (EMT) plays important roles in the migration, invasion and metastasis of cancer cells. However, the role of Src in epidermal growth factor (EGF)-induced EMT and migration in gastric cancer cells remains to be clarified. In the current study, the effect of Src on EGF-stimulated EMT and migration was explored in gastric cancer cells. EGF induced EMT in gastric cancer cells and increased their migratory ability, which was accompanied by the phosphorylation of Src. PP2, the Src inhibitor, markedly suppressed EGF-mediated EMT and migration in gastric cancer cells...
October 20, 2017: Cell Biology International
https://www.readbyqxmd.com/read/29052076/-e-2-methoxy-4-3-4-methoxyphenyl-prop-1-en-1-yl-phenol-ameliorates-lps-mediated-memory-impairment-by-inhibition-of-stat3-pathway
#4
Ji Yeon Choi, Chul Ju Hwang, Do Yeon Lee, Sun Mi Gu, Hee Pom Lee, Dong Young Choi, Ki Wan Oh, Sang-Bae Han, Jin Tae Hong
Alzheimer's disease (AD) is pathologically characterized by an excessive accumulation of amyloid-beta (Aβ) fibrils within the brain. We tested the anti-inflammatory and anti-amyloidogenic effects of (E)-2-methoxy-4-(3-(4-methoxyphenyl) prop-1-en-1-yl) phenol (MMPP), a selective signal transducer and activator of transcription 3 (STAT3) inhibitor. We examined whether MMPP (5 mg/kg in drinking water for 1 month) prevents amyloidogenesis and cognitive impairment on AD model mice induced by intraperitoneal LPS (250 μg/kg daily 7 times) injections...
October 19, 2017: Neuromolecular Medicine
https://www.readbyqxmd.com/read/29051763/il-12p35-inhibits-neuroinflammation-and-ameliorates-autoimmune-encephalomyelitis
#5
Jin Kyeong Choi, Ivy M Dambuza, Chang He, Cheng-Rong Yu, Anita N Uche, Mary J Mattapallil, Rachel R Caspi, Charles E Egwuagu
Multiple sclerosis (MS) is an inflammatory demyelinating disease in which cytokines produced by immune cells that infiltrate the brain and spinal cord play a central role. We show here that the IL-12p35, the alpha subunit of IL-12 or IL-35 cytokine, might be an effective biologic for suppressing neuroinflammatory responses and ameliorating the pathology of experimental autoimmune encephalomyelitis (EAE), the mouse model of human MS. We further show that IL-12p35 conferred protection from neuropathy by inhibiting the expansion of pathogenic Th17 and Th1 cells and inhibiting trafficking of inflammatory cells into the brain and spinal cord...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29051178/tlr4-mediated-inflammation-promotes-kshv-induced-cellular-transformation-and-tumorigenesis-by-activating-the-stat3-pathway
#6
Marion Gruffaz, Karthik Vasan, Brandon Tan, Suzane Ramos da Silva, Shou-Jiang Gao
Toll-like receptors (TLR) are conserved immune sensors mediating antimicrobial and antitumoral responses, but recent evidence implicates them in promoting carcinogenesis in certain cancers. Kaposi's sarcoma (KS) is caused by infection of Kaposi's sarcoma-associated herpesvirus (KSHV) and is characterized by uncontrolled neoangiogenesis and inflammation. Here we show that TLR4 is upregulated in KSHV-infected spindle tumor cells in human KS lesions. In a model of KSHV-induced cellular transformation, KSHV upregulated expression of TLR4, its adaptor MyD88, and coreceptors CD14 and MD2...
October 19, 2017: Cancer Research
https://www.readbyqxmd.com/read/29051082/magnetic-capture-of-polydopamine-encapsulated-hela-cells-for-the-analysis-of-cell-surface-proteins
#7
Yiying Liu, Guoquan Yan, Mingxia Gao, Xiangmin Zhang
A novel method to characterize cell surface proteins and complexes has been developed. Polydopamine (PDA)-encapsulated Hela cells were prepared for plasma membrane proteome research. Since the PDA protection, the encapsulated cells could be maintained for more than two weeks. Amino groups functionalized magnetic nanoparticles were also used for cell capture by the reaction with the PDA coatings. Plasma membrane fragments were isolated and enriched with assistance of an external magnetic field after disruption of the coated cells by ultrasonic treatment...
October 16, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/29050939/c6-glioma-conditioned-medium-induces-malignant-transformation-of-mesenchymal-stem-cells-possible-role-of-s100b-rage-pathway
#8
Bin Tan, Lianju Shen, Ke Yang, Daochao Huang, Xin Li, Yasha Li, Li Zhao, Jie Chen, Qing Yi, Hao Xu, Jie Tian, Jing Zhu
Mesenchymal stem cells (MSCs) have been widely studied as an attractive therapeutic agent for the treatment of tumors. However, the adverse effects of the tumor paracrine factors who affect MSCs are still unclear. In this study, we report for the first time that C6 glioma-conditioned medium (GCM) induces malignant transformation of MSCs. In contrast to MSCs, the transformed mesenchymal stem cells (TMCs) exhibited tumor cell characterizations in vitro and highly tumorigenic in vivo. Furthermore, GCM and recombinant S100B increased receptor for advanced glycation end products (RAGE) and its downstream Akt1, STAT3 genes expression as well as phosphorylation and transcriptional activation...
October 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29050872/manf-promotes-differentiation-and-migration-of-neural-progenitor-cells-with-potential-neural-regenerative-effects-in-stroke
#9
Kuan-Yin Tseng, Jenni E Anttila, Konstantin Khodosevich, Raimo K Tuominen, Maria Lindahl, Andrii Domanskyi, Mikko Airavaara
Cerebral ischemia activates endogenous reparative processes, such as increased proliferation of neural stem cells (NSCs) in the subventricular zone (SVZ) and migration of neural progenitor cells (NPCs) toward the ischemic area. However, this reparative process is limited because most of the NPCs die shortly after injury or are unable to arrive at the infarct boundary. In this study, we demonstrate for the first time that endogenous mesencephalic astrocyte-derived neurotrophic factor (MANF) protects NSCs against oxygen-glucose-deprivation-induced injury and has a crucial role in regulating NPC migration...
September 21, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/29050480/the-effect-of-leptin-and-resveratrol-on-jak-stat-pathways-and-sirt-1-gene-expression-in-the-renal-tissue-of-ischemia-reperfusion-induced-rats
#10
S Erkasap, N Erkasap, B Bradford, L Mamedova, O Uysal, M Ozkurt, R Ozyurt, O Kutlay, B Bayram
OBJECTIVE: Our study aimed to investigate the possible modifying effects of leptin and combined use of resveratrol on rat renal I/R injury and their relationship on signal pathways and apoptosis-related mechanisms. BACKGROUND: Renal ischemia-reperfusion (I/R) injury is an important cause of acute renal failure. METHODS: Male Sprague Dawley rats were divided into 5 groups: Control, I/R, I/R+leptin, I/R+resveratrol and I/R+leptin+resveratrol...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/29050290/gmi-ablates-cancer-stemness-and-cisplatin-resistance-in-oral-carcinomas-stem-cells-through-il-6-stat3-signaling-inhibition
#11
Tung Yuan Wang, Cheng-Chia Yu, Pei-Ling Hsieh, Yi-Wen Liao, Chuan-Hang Yu, Ming-Yung Chou
Cancer stem cells (CSCs) have been identified to exert tumor-initiating ability, resulting in the recurrence, metastasis and chemoresistance of oral squamous cell carcinomas. In the present study, we showed that GMI, an immunomodulatory protein from Ganoderma microsporum, induc ed a cytotoxic effect in oral carcinomas stem cells (OCSCs). Treatment of GMI dose-dependently inhibited the expression of CSC markers, including ALDH1 activity and CD44 positivity. Moreover, GMI suppressed the self-renewal property, colony formation, migration, and invasion abilities as well as potentiated chemo-sensitivity in OCSCs...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050266/physapubescin-b-inhibits-tumorgenesis-and-circumvents-taxol-resistance-of-ovarian-cancer-cells-through-stat3-signaling
#12
Xiaofeng Zhao, Lu Huang, Wanwan Xu, Xiaoyan Chen, Yan Shen, Wenjie Zeng, Xiao Chen
Ovarian cancer is the most lethal gynaecological malignancy. Recurrence and subsequent resistance to chemotherapy have become major obstacles to treating these diseases. In the present study, we showed that a natural withanolide isolated from the plant Physalis pubescens L. (Solanaceae), Physapubescin B, exhibited potent anti-tumor activity against ovarian cancer cells. Physapubescin B promoted apoptosis, induced cell-cycle arrest and inhibited invasion of ES-2 and A2780 cells. Physapubescin B treatment also resulted in suppression of the transcriptional activity of STAT3, an oncogenic transcription factor activated in many human malignancies including ovarian cancer, through disturbing the dimerization of STAT3, and thereby inhibited the nuclear translocation of Tyr705/Ser727-phosphorylated STAT3...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050232/progressive-modulation-of-the-human-olfactory-bulb-transcriptome-during-alzheimer%C3%A2-s-disease-evolution-novel-insights-into-the-olfactory-signaling-across-proteinopathies
#13
Mercedes Lachen-Montes, María Victoria Zelaya, Víctor Segura, Joaquín Fernández-Irigoyen, Enrique Santamaría
Alzheimer´s disease (AD) is characterized by progressive dementia, initially presenting olfactory dysfunction. Despite the olfactory bulb (OB) is the first central structure of the olfactory pathway, we lack a complete molecular characterization of the transcriptional events that occurs in this olfactory area during AD progression. To address this gap in knowledge, we have assessed the genome-wide expression in postmortem OBs from subjects with varying degree of AD pathology. A stage-dependent deregulation of specific pathways was observed, revealing transmembrane transport, and neuroinflammation as part of the functional modules that are disrupted across AD grading...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29049036/histone-deacetylase-inhibitor-bg45-mediated-ho-1-expression-induces-apoptosis-of-multiple-myeloma-cells-by-the-jak2-stat3-pathway
#14
Sishi Tang, Bingqing Cheng, Nana Zhe, Dan Ma, Jibing Xu, Xinyao Li, Yongling Guo, Weibing Wu, Jishi Wang
Multiple myeloma (MM) is a hematological malignancy that is characterized by the clonal expansion of plasma cells in the bone marrow. Histone deacetylases (HDACs) represent a new type of molecular targeted therapy for different types of cancers and promising targets for myeloma therapy. We showed that HDAC3 mRNA and protein levels of CD138 mononuclear cells from MM patients were higher than those in healthy donors. Therefore, we investigated the effects of a novel class I HDAC inhibitor BG45 on MM cells in vitro...
October 18, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/29048661/combination-of-fgfr4-inhibitor-blu9931-and-5-fluorouracil-effects-on-the-biological-characteristics-of-colorectal-cancer-cells
#15
Dongbao Jiang, Jingjing Li, Jie Li, Min Wang, Chao Han, Xinru Wang, Chunlin Zhao, Yanwei Ye
The aim of this study was to explore the effects of single agent treatments and combination of Blu9931 and 5-fluorouracil (5-FU) on the biological characteristics of colorectal cancer cells and its mechanism. Blu9931 is the first selective small molecule inhibitor of the fibroblast growth factor receptor 4 (FGFR4) and exquisitely selective for FGFR4 versus other FGFR family members and all other kinases. The colorectal cancer cells HCT116 and SW620 with high expression of FGFR4 were selected for a series of functional tests including cell viability, cell proliferation, apoptosis and cell cycle detection...
October 2, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29048621/irisin-reverses-the-il-6-induced-epithelial-mesenchymal-transition-in-osteosarcoma-cell-migration-and-invasion-through-the-stat3-snail-signaling-pathway
#16
Gang Kong, Yunpeng Jiang, Xiujiang Sun, Zhilin Cao, Guodong Zhang, Zhongyuan Zhao, Yong Zhao, Qian Yu, Gong Cheng
As a novel discovered myokine, irisin is considered to be a promising candidate for the treatment of metabolic disorders and cancer. However, little is known about the anti-metastasic effect of irisin on osteosarcoma cells and its underlying mechanisms. In the present study, we aimed to explore the effect of irisin on the migration and invasion of osteosarcoma cells and the underlying mechanisms involved. Viability and proliferation of osteosarcoma cells were examined by MTT assay. Then, by using scratch wound healing assay and Transwell assays, we evaluated migratory and invasive ability of the cells, respectively...
September 20, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29047406/loss-of-mkp-5-promotes-myofiber-survival-by-activating-stat3-bcl-2-signaling-during-regenerative-myogenesis
#17
Kisuk Min, Ahmed Lawan, Anton M Bennett
BACKGROUND: The mitogen-activated protein kinases (MAPKs) have been shown to be involved in regulating myofiber survival. In skeletal muscle, p38 MAPK and JNK are negatively regulated by MAPK phosphatase-5 (MKP-5). During muscle regeneration, MKP-5 is downregulated, thereby promoting p38 MAPK/JNK signaling, and subsequent repair of damaged muscle. Mice lacking MKP-5 expression exhibit enhanced regenerative myogenesis. However, the effect of MKP-5 on myofiber survival during regeneration is unclear...
October 18, 2017: Skeletal Muscle
https://www.readbyqxmd.com/read/29046352/the-lignan-manassantin-is-a-potent-and-specific-inhibitor-of-mitochondrial-complex-i-and-bioenergetic-activity-in-mammals
#18
Yibao Ma, Hae-Ki Min, Unsong Oh, Adam M Hawkridge, Wei Wang, Ahmed A Mohsin, Qun Chen, Arun Sanyal, Edward J Lesnefsky, Xianjun Fang
Dineolignans manassantin A and B from the plant Saururus cernuus are used in traditional medicine to manage a wide range of ailments such as edema, jaundice, and gonorrhea. Cell-based studies have identified several molecular target candidates of manassantin including NF-kappaB, MAPK, STAT3 and hypoxia-inducible factor 1 alpha (HIF-1alpha). It is unclear whether or how these structurally diverse proteins or pathways mediate any of the medical benefits of manassantin in vivo. Moreover, it has been recently reported that manassantin causes developmental arrest in zebrafish by inhibiting the mitochondrial complex I, but it is unknown whether manassantin inhibits mitochondrial respiration in intact mammalian cells and live animals...
October 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29045353/impaired-il-10-receptor-mediated-suppression-in-monocyte-from-patients-with-crohn-s-disease
#19
Moran Y Nunberg, Lael Werner, Uri Kopylov, Yael Haberman, Avishay Lahad, Batia Weiss, Dror S Shouval
OBJECTIVES: Interleukin-10 (IL-10) is an immunoregulatory cytokine that has a central role in suppressing pro-inflammatory responses. Patients with deleterious mutations in IL-10 or IL-10 receptor (IL-10R) genes develop severe colitis and perianal disease in the first months of life. Whether IL-10R expression and signaling in pediatric- or adult-onset Crohn's disease (CD) are altered is unknown. The objective of this study was to characterize IL-10R expression and IL-10R-mediated suppression in patients with CD...
October 17, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/29045271/rhabdomyosarcoma-cells-are-susceptible-to-cell-death-by-ldk378-alone-or-in-combination-with-sorafenib-independently-of-anaplastic-lymphoma-kinase-status
#20
Nadezda Dolgikh, Simone Fulda
Anaplastic lymphoma kinase (ALK) is a receptor tyrosine kinase that is often overexpressed in rhabdomyosarcoma (RMS). However, its oncogenic and functional role in RMS remains unclear. Therefore, we investigated the antitumor activity of LDK378 (ceritinib), a new second-generation ALK inhibitor approved for patients with ALK-positive non-small-cell lung cancers. Here, we report that LDK378 reduces cell viability and induces cell death in RMS cell lines at low micromolar IC50 concentrations irrespective of ALK expression levels or phosphorylation status...
November 2017: Anti-cancer Drugs
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