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https://www.readbyqxmd.com/read/28437280/inhibition-of-rho-kinase-attenuates-left-ventricular-remodeling-caused-by-chronic-intermittent-hypoxia-in-rats-via-suppressing-myocardial-inflammation-and-apoptosis
#1
Zhi-Hua Wang, Die Zhu, Sheng Xie, Yan Deng, Yueying Pan, Jie Ren, Hui-Guo Liu
Chronic intermittent hypoxia (CIH), the hallmark of obstructive sleep apnea syndrome (OSAS), has been reported to play a key role in the development of OSAS-associated cardiovascular diseases including cardiac remodeling. RhoA/Rho-kinase (ROCK) pathway has also been implicated in myocardial remodeling, but the exact mechanisms are not fully elucidated. The current study's purpose is to investigate the influence of fasudil, a selective ROCK inhibitor, on CIH-induced left ventricular remodeling in rats and its possible mechanisms...
April 18, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28435064/salvianolate-attenuates-renal-fibrosis-in-rat-models-of-diabetic-nephropathy-by-inhibiting-inflammation-and-oxidative-stress-mechanisms
#2
Chongxiang Xiong, Jianrao Lu, Xinhua Wang, Monica V Masucci
OBJECTIVE: Mounting evidence has shown that inflammation and oxidative stress are involved in the development and progression of diabetic nephropathy. Salvianolate is proven to have multiple bioactivities including anti-inflammation and anti-oxidative stress effects in diverse diseases. However, its role in rat models of diabetic nephropathy remains unclear. METHODS: In this study, we examined the renoprotective effect of Salvianolate on rat models of diabetic nephropathy induced by streptozotocin intraperitoneal injection...
April 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28430389/combination-of-carmustine-and-selenite-inhibits-egfr-mediated-growth-signaling-in-androgen-independent-prostate-cancer-cells
#3
Vijayalakshmi Thamilselvan, Mani Menon, Gary S Stein, Fred Valeriote, Sivagnanam Thamilselvan
Although aberrant androgen receptor (AR) signaling is a central mechanism for castration resistant prostate cancer (CRPC) progression, AR-independent survival and growth signaling is also present in CRPC. The current therapeutic options for patients with CRPC are limited and new drugs are desperately needed to eliminate these crucial growth signaling pathways. Overexpression of EGFR in CRPC primarily mediates the proliferation of androgen-independent prostate cancer (AIPC) cells. We have previously shown that combination of carmustine and selenite effectively induces apoptosis and growth inhibition by targeting AR and AR-variants in castration resistant prostate cancer cells...
April 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28428633/inhibition-of-glutathione-metabolism-attenuates-esophageal-cancer-progression
#4
Liang Peng, Ruixia Linghu, Demeng Chen, Jing Yang, Xiaoxue Kou, Xiang-Zhen Wang, Yi Hu, Yi-Zhou Jiang, Junlan Yang
Esophageal squamous cell carcinoma (ESCC) is a deadly malignancy with regard to mortality and prognosis, and the 5-year survival rate for all patients diagnosed with ESCC remains poor. A better understanding of the biological mechanisms of ESCC tumorigenesis and progression is of great importance to improve treatment of this disease. In this study, we demonstrated that the glutathione metabolism pathway is highly enriched in ESCC cells compared with normal esophageal epithelial cells in an in vivo mouse model...
April 21, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28425867/chemokines-and-relevant-micrornas-in-the-atherogenic-process
#5
Dimitry A Chistiakov, Alexander N Orekhov, Yuri V Bobryshev
Chemokines play a significant role in initial and advanced steps of atherogenesis. In early steps, chemokines control the adhesion of leukocytes to endothelial cells (ECs) followed by transmigration of monocytes and their deposition in the intima where they differentiate to proinflammatory macrophages. Except proinflammatory activity, chemokines are responsible for homeostasis and homing of progenitor cells. Recently, microRNAs (miRs) were found to control expression and activity of chemokines in ECs, vascular smooth muscle cells (VSMCs), and macrophages at different steps of atherogenesis...
April 19, 2017: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/28424281/distinct-roles-of-vaccinia-virus-nf-kb-inhibitor-proteins-a52-b15-and-k7-in-the-immune-response
#6
Mauro Di Pilato, Ernesto Mejías-Pérez, Carlos Oscar S Sorzano, Mariano Esteban
Poxviruses use a complex strategy to escape immune control, by expressing immunomodulatory proteins that could limit their use as vaccine vectors. To test the role of poxvirus NF-κB pathway inhibitors A52, B15 and K7 in immunity, we deleted their genes in a NYVAC vaccinia virus strain that expresses HIV-1 clade C antigens. After infection of mice, ablation of A52R, B15R and K7R increased dendritic cell, natural killer cell and neutrophil migration as well as chemokine/cytokine expression. Revertant viruses for these genes confirmed their role in inhibiting the innate immune system...
April 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28423512/kinase-analysis-of-penile-squamous-cell-carcinoma-on-multiple-platforms-to-identify-potential-therapeutic-targets
#7
Eddy S Yang, Christopher D Willey, Amitkumar Mehta, Michael R Crowley, David K Crossman, Dongquan Chen, Joshua C Anderson, Gurudatta Naik, Deborah L Della Manna, Tiffiny S Cooper, Guru Sonpavde
Penile squamous cell carcinoma (PSCC) is an orphan malignancy with poorly understood biology and suboptimal systemic therapy. Given that kinases may be drivers and readily actionable, we performed comprehensive multiplatform analysis of kinases in PSCC tumor and normal tissue. Fresh frozen tumors were collected from 11 patients with PSCC. After macrodissection to demarcate tumor from normal tissue, the samples underwent multiplatform analysis of kinases. Next Generation Sequencing (NGS) of 517 kinase genes was performed using Agilent Kinome capture and run on the Illumina MiSeq at PE150bp...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28418119/endoplasmic-reticulum-stress-pathway-perk-eif2%C3%AE-confers-radioresistance-in-oropharyngeal-carcinoma-by-activating-nf-%C3%AE%C2%BAb
#8
Qiao Qiao, Chaonan Sun, Chuyang Han, Ning Han, Miao Zhang, Guang Li
Endoplasmic reticulum stress (ERS) plays an important role in the pathogenesis and development of malignant tumours, as well as in the regulation of radio- and chemoresistance in many malignancies. ERS signalling pathway protein kinase RNA-like endoplasmic reticulum kinase (PERK) -eukaryotic initiation factor-2 (eIF2α) may induce aberrant activation of nuclear factor-κB (NF-κB). Our previous study showed that NF-κB confered radioresistance in lymphoma cells. However, whether PERK-eIF2α regulates radioresistance in oropharyngeal carcinoma through NF-κB activation is unknown...
April 18, 2017: Cancer Science
https://www.readbyqxmd.com/read/28417263/rosuvastatin-attenuates-high-salt-and-cholesterol-diet-induced-neuroinflammation-and-cognitive-impairment-via-preventing-nuclear-factor-kappab-pathway
#9
Ibraheem Husain, Mohd Akhtar, Divya Vohora, Malik Zainul Abdin, Mohammad Islamuddin, Mohd Jawaid Akhtar, Abul Kalam Najmi
Recent attention is focused on the impact of diet on health and mental well-being. High-salt and cholesterol diet (HSCD) is known to be associated with neuroinflammation which is the predominant factor for neurodegenerative disease like Alzheimer disease (AD). In the present study, we examined the neuroprotective potential of rosuvastatin, an HMG-CoA reductase inhibitor against HSCD induced neuroinflammation and cognitive impairment. Our results demonstrated that HSCD-induced cognitive impairment as determined by Morris water maze (MWM) task...
April 18, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28416754/unique-synergistic-formulation-of-curcumin-epicatechin-gallate-and-resveratrol-tricurin-suppresses-hpv-e6-eliminates-hpv-cancer-cells-and-inhibits-tumor-progression
#10
Sumit Mukherjee, Priya Ranjan Debata, Rahman Hussaini, Kaushiki Chatterjee, Juliet N E Baidoo, Samay Sampat, Anita Szerszen, Joseph P Navarra, Jimmie Fata, Elena Severinova, Probal Banerjee, Mario R Castellanos
Curcumin (from curry) (C) is highly potent against cervical cancer cells (CCC), but poor bioavailability has limited its clinical use. Similar natural polyphenols resveratrol (from grapes) (R), and epicatechin gallate (from green tea) (E) also display activity against CCC. By treating CCC (HeLa) with C, E, or R, or combinations of these compounds, we computed combination indices and observed a strong synergism among C, E, and R at the unique molar ratio 4:1:12.5. This combination, named as TriCurin, rapidly down regulated HPV18 E6 and NF-kB expression while concomitantly inducing the tumor suppressor protein p53 in HeLa cells...
March 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415707/luteolin-reduces-inflammation-in-staphylococcus-aureus-induced-mastitis-by-inhibiting-nf-kb-activation-and-mmps-expression
#11
Ying-Fang Guo, Nian-Nian Xu, Weijing Sun, Yifan Zhao, Cheng-Ye Li, Meng-Yao Guo
Mastitis is a serious and prevalent disease caused by infection by pathogens such as Staphylococcus aureus. We evaluated the anti-inflammatory effects and mechanism of luteolin, a natural flavonoid with a wide range of pharmacological activities, in a mouse model of S. aureus mastitis. We also treated cultured mouse mammary epithelial cells (mMECs) with S. aureus and luteolin. Histopathological changes were examined by H&E staining and the levels of inflammatory cytokine proteins were analyzed using ELISAs...
March 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28412202/the-immunosuppressive-effects-of-a-novel-recombinant-lipq-rv2485c-protein-of-mycobacterium-tuberculosis-on-human-macrophage-cell-lines
#12
Anjani Kumar, Manisha, Gurkamaljit Kaur Sangha, Anju Shrivastava, Jagdeep Kaur
Mycobacterium tuberculosis (MTB), an intracellular pathogen, still represents a major global health challenge. A number of mycobacterial macromolecules have been shown to target biological processes within host macrophages; however, the exact mechanism for the majority of these host pathogen interactions is still poorly understood. Moreover, the lipid metabolic pathway is one of the most important physiologic pathways that plays a vital role in the survival and infection of Mycobacterium tuberculosis. In present study, we investigated the effect of rLipQ from Mycobacterium tuberculosis H37Rv on macrophage functions in vitro...
April 12, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28408068/quercus-infectoria-inhibits-set7-nf-%C3%AE%C2%BAb-inflammatory-pathway-in-macrophages-exposed-to-a-diabetic-environment
#13
Julalak Chokpaisarn, Norifumi Urao, Supayang P Voravuthikunchai, Timothy J Koh
Chronic inflammation plays a key role in the pathogenesis of myriad complications associated with diabetes and thus anti-inflammatory therapies may ameliorate these complications. Quercus infectoria (Qi) extract has been shown to downregulate inflammatory processes; however, the molecular mechanisms of this anti-inflammatory activity remain unclear. The hypothesis of our study was that Qi extract exerts its anti-inflammatory effect by downregulating the Set7/NF-κB pathway. Bone marrow-derived macrophages (BMM) were treated with high glucose plus palmitate medium (HG/Pa) to simulate the diabetic environment...
April 10, 2017: Cytokine
https://www.readbyqxmd.com/read/28406931/a-model-of-periventricular-leukomalacia-pvl-in-neonate-mice-with-histopathological-and-neurodevelopmental-outcomes-mimicking-human-pvl-in-neonates
#14
Nahla Zaghloul, Hardik Patel, Mohamed Nagy Ahmed
Periventricular leukomalacia (PVL), a brain injury affecting premature infants is commonly associated with cerebral palsy. PVL results from hypoxia-ischemia (HI) with or without infection and is characterized by white matter necrotic lesions, hypomyelination, microglial activation, astrogliosis, and neuronal death. It is important to study a PVL mouse model that mimics human PVL in symptomatology, anatomic and molecular basis. In our neonate mice model, bilateral carotid arteries were temporary ligated at P5 followed by hypoxic exposure (FiO2 of 8% for 20 min...
2017: PloS One
https://www.readbyqxmd.com/read/28405503/genotoxic-stress-modulates-the-release-of-exosomes-from-multiple-myeloma-cells-capable-of-activating-nk-cell-cytokine-production-role-of-hsp70-tlr2-nf-kb-axis
#15
Elisabetta Vulpis, Francesca Cecere, Rosa Molfetta, Alessandra Soriani, Cinzia Fionda, Giovanna Peruzzi, Giulio Caracciolo, Sara Palchetti, Laura Masuelli, Lucilla Simonelli, Ugo D'Oro, Maria Pia Abruzzese, Maria Teresa Petrucci, Maria Rosaria Ricciardi, Rossella Paolini, Marco Cippitelli, Angela Santoni, Alessandra Zingoni
Exosomes are a class of nanovesicles formed and released through the late endosomal compartment and represent an important mode of intercellular communication. The ability of anticancer chemotherapy to enhance the immunogenic potential of malignant cells mainly relies on the establishment of the immunogenic cell death (ICD) and the release of damage-associated molecular patterns (DAMPs). Here, we investigated whether genotoxic stress could promote the release of exosomes from multiple myeloma (MM) cells and studied the immunomodulatory properties they exert on NK cells, a major component of the antitumor immune response playing a key role in the immunosurveillance of MM...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28400477/il-4-primes-the-dynamics-of-breast-cancer-progression-via-dusp4-inhibition
#16
Miriam Gaggianesi, Alice Turdo, Aurora Chinnici, Elisa Lipari, Tiziana Apuzzo, Antonina Benfante, Isabella Sperduti, Simone Di Franco, Serena Meraviglia, Elena Lo Presti, Francesco Dieli, Valentina Caputo, Gabriella Militello, Salvatore Vieni, Giorgio Stassi, Matilde Todaro
The tumor microenvironment supplies pro-inflammatory cytokines favoring a permissive milieu for cancer cell growth and invasive behavior. Here we show how breast cancer progression is facilitated by IL-4 secreted by adipose tissue and estrogen receptor-positive and triple-negative breast cancer cell types. Blocking autocrine and paracrine IL-4 signaling with the IL-4Rα antagonist IL-4DM compromised breast cancer cell proliferation, invasion and tumor growth by downregulating MAPK pathway activity. IL-4DM reduced numbers of CD44+/CD24- cancer stem-like cells and elevated expression of the dual specificity phosphatase DUSP4 by inhibiting NF-kB...
April 11, 2017: Cancer Research
https://www.readbyqxmd.com/read/28389378/sympathetic-regulation-and-anterior-cingulate-cortex-volume-are-altered-in-a-rat-model-of-chronic-back-pain
#17
Sara Touj, Sébastien Houle, Djamel Ramla, Renaud Jeffrey-Gauthier, Harumi Hotta, Gilles Bronchti, Maria-Grazia Martinoli, Mathieu Piché
Chronic pain is associated with autonomic disturbance. However, specific effects of chronic back pain on sympathetic regulation remain unknown. Chronic pain is also associated with structural changes in the anterior cingulate cortex (ACC), which may be linked to sympathetic dysregulation. The aim of this study was to determine whether sympathetic regulation and ACC surface and volume are affected in a rat model of chronic back pain, in which complete Freund Adjuvant (CFA) is injected in back muscles. Sympathetic regulation was assessed with renal blood flow (RBF) changes induced by electrical stimulation of a hind paw, while ACC structure was examined by measuring cortical surface and volume...
April 4, 2017: Neuroscience
https://www.readbyqxmd.com/read/28387915/effects-of-zeb1-on-regulating-osteosarcoma-cells-via-nf-%C3%AE%C2%BAb-inos
#18
X-M Xu, W Liu, Z-H Cao, M-X Liu
OBJECTIVE: Osteosarcoma is one common malignant bone tumors, as it frequently has invasion, metastasis and recurrence, causing unfavorable prognosis of patients. Osteosarcoma has complicated pathogenesis, which has not been elucidated fully. Therefore, the identification of effective molecular target of osteosarcoma onset can help to improve treatment efficacy and prognosis of osteosarcoma. Zinc finger E-box binding homeobox 1 (ZEB1) protein is one member of zinc finger E-box binding protein family, and participates in embryonic genesis and development...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28387444/comparative-modulation-of-levels-of-oxidative-stress-in-the-liver-of-anti-tuberculosis-drug-treated-wistar-rats-by-vitamin-b12-beta-carotene-and-spirulina-fusiformis-role-of-nf-kb-inos-il-6-and-il-10
#19
Sherry Joseph Martin, Evan Prince Sabina
PURPOSE: Isoniazid (INH) and Rifampicin (RIF) are known hepatotoxic agents. We compared the efficacy of Spirulina fusiformis and its active components vitamin B12 and beta-carotene in attenuating INH & RIF induced hepatotoxicity. We also tried to elucidate the inflammatory mechanism behind anti-tuberculosis drug induced hepatotoxicity. METHODS: INH & RIF were administered to Wistar albino rats for 28 days to induce hepatotoxicity. Spirulina fusiformis, vitamin B12 and beta-carotene were co-administered with INH & RIF and their hepatoprotective, antioxidant and immunomodulatory roles were studied through blood and liver analysis...
April 7, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28386305/a-fermented-whole-grain-prevents-lipopolysaccharides-induced-dysfunction-in-human-endothelial-progenitor-cells
#20
Laura Giusti, Morena Gabriele, Giuseppe Penno, Monia Garofolo, Vincenzo Longo, Stefano Del Prato, Daniela Lucchesi, Laura Pucci
Endogenous and exogenous signals derived by the gut microbiota such as lipopolysaccharides (LPS) orchestrate inflammatory responses contributing to development of the endothelial dysfunction associated with atherosclerosis in obesity, metabolic syndrome, and diabetes. Endothelial progenitor cells (EPCs), bone marrow derived stem cells, promote recovery of damaged endothelium playing a pivotal role in cardiovascular repair. Since healthy nutrition improves EPCs functions, we evaluated the effect of a fermented grain, Lisosan G (LG), on early EPCs exposed to LPS...
2017: Oxidative Medicine and Cellular Longevity
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