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Journal of Receptor and Signal Transduction Research

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https://www.readbyqxmd.com/read/28819999/high-glucose-induces-hgf-independent-activation-of-met-receptor-in-human-renal-tubular-epithelium
#1
Lucia Mesarosova, Peter Ochodnicky, Jaklien C Leemans, Sandrine Florquin, Peter Krenek, Jan Klimas
CONTEXT: The role of hepatocyte growth factor (HGF) in diabetic kidney damage remains controversial. OBJECTIVE: To test the hypothesis that high glucose levels activate pathways related to HGF and its receptor Met and that this could participate in glucose-induced renal cell damage. MATERIALS AND METHODS: HK2 cells, a human proximal tubule epithelial cell line, were stimulated with high glucose for 48 hours. Levels of pMet/Met, pEGFR/EGFR, pSTAT3/STAT3, pAkt/Akt and pERK1/2/ERK1/2 were studied by immunoblotting...
August 18, 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28537194/an-investigation-into-the-potential-role-of-brain-angiogenesis-inhibitor-protein-3-bai3-in-the-tumorigenesis-of-small-cell-carcinoma-a-review-of-the-surrounding-literature
#2
Michael Thomas, David Snead, Daniel Mitchell
Brain angiogenesis inhibitor protein 3 (BAI3) is from the adhesion group of seven-transmembrane spanning G protein-coupled receptors (GPCRs) and has been identified via gene expression profiling as being upregulated in small-cell lung cancer (SCLC) tumors. It has subsequently been validated as a sensitive and specific immunohistochemical marker for SCLC, helping to differentiate these tumors from morphologically similar large-cell neuroendocrine (LCNEC) malignancies. It is, however, still unclear as to the role BAI3 proteins might play in SCLC and indeed how they might contribute to tumorigenesis...
May 24, 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28812970/indole-3-carbinol-induces-g1-cell-cycle-arrest-and-apoptosis-through-aryl-hydrocarbon-receptor-in-thp-1-monocytic-cell-line
#3
Saeed Mohammadi, Fakhri Sadat Seyedhosseini, Nasser Behnampour, Yaghoub Yazdani
OBJECTIVES: The role of aryl hydrocarbon receptor (AhR) in carcinogenesis has been studied recently. Indole-3-carbinol (I3C) is an AhR agonist and a potential anticancer agent. Here, we investigated the effects of I3C on cell cycle progression and apoptosis through activation of AhR on THP-1 acute myeloid leukemia (AML) cell line. METHODS: MTT viability assay was used to measure the cytotoxic effects of I3C on THP-1 cells. Apoptosis and cell cycle assays were investigated using flow cytometry...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28812969/functional-expression-of-bmp7-receptors-in-oral-epithelial-cells-interleukin-17f-production-in-response-to-bmp7
#4
Kensuke Nishio, Yasumasa Ozawa, Hisanori Ito, Takashi Kifune, Tatsuya Narita, Toshimitsu Iinuma, Nobuhito Gionhaku, Masatake Asano
BACKGROUND: Bone morphogenetic proteins (BMPs) are members of the transforming growth factor-β (TGF-β) superfamily. Recently, BMP7 has been demonstrated to be produced by salivary glands and contribute to embryonic branching in mice. The BMP7 in saliva is thought to be delivered to the oral cavity and is expected to contact with stratified squamous epithelial cells which line the surface of oral mucosa. In this study, we attempted to investigate the effects of BMP7 on oral epithelial cells...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28812968/jnk-pathway-in-osteoarthritis-pathological-and-therapeutic-aspects
#5
Hong-Xing Ge, Fu-Man Zou, Yan Li, An-Min Liu, Min Tu
CONTEXT: Osteoarthritis (OA) is a common chronic degenerative joint disease resulting in physical disability and reduced quality of life. Different biochemical signaling pathways are involved in the progression of OA, including the c-Jun NH2-terminal kinase (JNK) signal transduction pathway. OBJECTIVE: In this study, we have reviewed the recent updates on the association of JNK pathway with OA. METHODS: In this review, we have explored the databases like PubMed, Google Scholar, Medline, Scopus, etc...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28812967/tanshinone-induced-ers-suppresses-igfii-activation-to-alleviate-ang-ii-mediated-cardiac-hypertrophy
#6
Ya-Fang Chen, Nien-Hung Lee, Pei-Ying Pai, Li-Chin Chung, Chia-Yao Shen, Peramaiyan Rajendran, Yu-Feng Chen, Ray-Jade Chen, Vijaya Padma Viswanadha, Wei-Wen Kuo, Chih-Yang Huang
Cardiomyopathy involves changes in myocardial ultrastructure and cardiac hypertrophy. Angiotensin II (AngII) has previously been shown to stimulate the expression of IGF-2 and IGF-2R in H9c2 cardiomyoblasts and increase of blood pressure, and cardiac hypertrophy. Estrogen receptors (ERs) exert protective effects, such as anti-hypertrophy in cadiomyocytes. Tanshinone IIA (TSN), a main active ingredient from a Chinese medical herb, Salvia miltiorrhiza Bunge (Danshen), was shown to protect cardiomyocytes hypertrophy by different stress signals...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28770648/effect-of-uric-acid-on-inflammatory-cox-2-and-ros-pathways-in-vascular-smooth-muscle-cells
#7
Nurgül Oğuz, Mustafa Kırça, Arzu Çetin, Akın Yeşilkaya
Hyperuricemia is thought to play a role in cardiovascular diseases (CVD), including hypertension, coronary artery disease and atherosclerosis. However, exactly how uric acid contributes to these pathologies is unknown. An underlying mechanism of inflammatory diseases, such as atherosclerosis, includes enhanced production of cyclooxygenase-2 (COX-2) and superoxide anion. Here, we aimed to examine the effect of uric acid on inflammatory COX-2 and superoxide anion production and to determine the role of losartan...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28768454/insight-into-the-structural-requirements-of-thiophene-3-carbonitriles-based-murf-inhibitors-by-3d-qsar-molecular-docking-and-molecular-dynamics-study
#8
Mohammed Afzal Azam, Srikanth Jupudi
The discovery of clinically relevant inhibitors against MurF enzyme has proven to be a challenging task. In order to get further insight into the structural features required for the MurF inhibitory activity, we performed pharmacophore and atom-based three-dimensional quantitative structure-activity relationship studies for novel thiophene-3-carbonitriles based MurF inhibitors. The five-feature pharmacophore model was generated using 48 inhibitors having IC50 values ranging from 0.18 to 663 μm. The best-fitted model showed a higher coefficient of determination (R(2) = 0...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28758854/3d-qsar-pharmacophore-based-virtual-screening-molecular-docking-and-molecular-dynamics-simulation-toward-identifying-lead-compounds-for-ns2b-ns3-protease-inhibitors
#9
Pei H Luo, Xuan R Zhang, Lan Huang, Lun Yuan, Xang Z Zhou, X Gao, Ling S Li
NS2B-NS3 protease has been identified to serve as lead drug design target due to its significant role in West Nile viral (WNV) and dengue virus (DENV) reproduction and replication. There are currently no approved chemotherapeutic drugs and effective vaccines to inhibit DENV and WNV infections. In this work, 3D-QSAR pharmacophore model has been developed to discover potential inhibitory candidates. Validation through Fischer's model and decoy test indicate that the developed 3D pharmacophore model is highly predictive for DENV inhibitors, which was then employed to screen ZINC chemical library to obtain reasonable hits...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28758826/implication-of-sphingosine-1-phosphate-signaling-in-diseases-molecular-mechanism-and-therapeutic-strategies
#10
Mohd Arish, Mohammed Alaidarous, Rahat Ali, Yusuf Akhter, Abdur Rub
Sphingosine-1-phosphate signaling is emerging as a critical regulator of cellular processes that is initiated by the intracellular production of bioactive lipid molecule, sphingosine-1-phosphate. Binding of sphingosine-1-phosphate to its extracellular receptors activates diverse downstream signaling that play a critical role in governing physiological processes. Increasing evidence suggests that this signaling pathway often gets impaired during pathophysiological and diseased conditions and hence manipulation of this signaling pathway may be beneficial in providing treatment...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28670936/identification-and-characterization-of-erbb4-kinase-inhibitors-for-effective-breast-cancer-therapy
#11
Ankita Sahu, P K Patra, Manoj Kumar Yadav, Meena Varma
The overexpression of ErbB4 is associated with aggressive disease biology and reduced the survival of breast cancer patients. We have used ErbB4 receptor as a novel drug target to spearhead the rational drug design. The present study is divided into two parts. In the first part, we have exploited the hidden information inside ErbB4 kinase receptor both at sequence and structural level. PSI-BLAST algorithm is used to search similar sequences against ErbB4 kinase sequence. Top 15 sequences with high identity were selected for finding conserved and variable regions among sequences using multiple sequence alignment...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28553881/the-relationship-between-levels-of-plasma-soluble-urokinase-plasminogen-activator-receptor-supar-and-presence-of-migraine-attack-and-aura
#12
Nigar Yılmaz, Mustafa Yılmaz, Burcu Sirin, Sureyya Yılmaztekin, Gülnihal Kutlu
Migraine is one of the most common types of pain associated with sterile inflammatory conditions. Soluble urokinase plasminogen activator receptor (suPAR) is a potential novel inflammatory marker. We aim to determine the association between serum values of suPAR, procalcitonin, fibrinogen, and high-sensitivity C-reactive protein (hs-CRP) and migraine disease characteristics. The study involved a total of 60 migraine patients (33 patients in the interictal period, 27 patients in the attack period) and 30 healthy individuals...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28537140/molecular-modeling-driven-approach-for-identification-of-janus-kinase-1-inhibitors-through-3d-qsar-docking-and-molecular-dynamics-simulations
#13
Ramesh Itteboina, Srilata Ballu, Sree Kanth Sivan, Vijjulatha Manga
Janus kinase 1 (JAK 1) belongs to the JAK family of intracellular nonreceptor tyrosine kinase. JAK-signal transducer and activator of transcription (JAK-STAT) pathway mediate signaling by cytokines, which control survival, proliferation and differentiation of a variety of cells. Three-dimensional quantitative structure activity relationship (3 D-QSAR), molecular docking and molecular dynamics (MD) methods was carried out on a dataset of Janus kinase 1(JAK 1) inhibitors. Ligands were constructed and docked into the active site of protein using GLIDE 5...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28554304/ginsenoside-rb1-exerts-antidiabetic-action-on-c2c12-muscle-cells-by-leptin-receptor-signaling-pathway
#14
Mohammad Reza Tabandeh, Seyed Ahmad Hosseini, Maryam Hosseini
CONTEXT: Ginsenoside Rb1 improves insulin sensitivity and glucose uptake in muscle cells via different signaling pathways; however, it is not clear that it has any effect on leptin signaling in skeletal muscle. OBJECTIVES: The aim of this study was to investigate the effect of ginsenoside Rb1 on leptin receptors expression and main signaling pathways of leptin (STAT3, PI3 kinase and ERK kinase) in C2C12 skeletal muscle cells. MATERIALS AND METHODS: C2C12 myotubes were incubated with various concentrations of Rb1 (0...
August 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28554303/c-type-natriuretic-peptide-suppresses-mesangial-proliferation-and-matrix-expression-via-a-mmps-timps-independent-pathway-in-vitro
#15
Bao Yu Huang, Peng Hu, Dong Dong Zhang, Guang Mei Jiang, Si Yan Liu, Yao Xu, Yang Fang Wu, Xun Xia, Ya Wang
C-type natriuretic peptide (CNP) acts mainly in a local, paracrine fashion to regulate vascular tone and cell proliferation. Although several in vivo studies have demonstrated that CNP exerts an inhibitory effect on mesangial matrix generation, a limited number of reports exist about the anti-extracellular matrix (ECM) accumulation effect of CNP and its underlying mechanisms in mesangial cells (MCs) in vitro. In this study, human MCs were incubated in serum-containing medium in the absence or presence of CNP (0, 10 and 100 pM) for 24, 48 and 72 h, respectively...
August 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28554302/new-cardiac-expression-of-two-adenosine-2a-receptor-isoforms-in-dysfunctioning-minipigs
#16
Manuela Cabiati, Benedetta Svezia, Marco Matteucci, Luca Panchetti, Silvia Burchielli, Maria-Aurora Morales, Silvia Del Ry
PURPOSE: Eight A2AR variants are reported in humans while no A2AR isoforms in pigs. The aim of this study was to evaluate potential isoforms presence in cardiac pig tissue to better define possible involvement of A2AR in the cardiovascular pathophysiology. MATERIALS AND METHODS: In adult male minipigs (n = 4) left ventricular dysfunction (LVD) was induced by pacing at 200 bpm in the right ventricular (RV) apex. In these animals and in sham operated pigs (C-SHAM, n = 4) cardiac tissue was collected from LV-septal wall (LV-SW)-close to pacing site-and from lateral (opposite) site (LV-OSW)...
August 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28554301/exploring-disorder-in-the-human-charged-biased-proteins
#17
Mouna Choura, Ahmed Rebaï
A considerable interest has been put in the identification of biased regions in proteins. These regions are frequently associated with a structural role in the cell and particularly with protein disorder. Here, we have investigated the intrinsically disordered regions (IDRs) in the human charged biased proteins identified in our earlier work. We found that 65% of charged biased proteins contained significant IDRs involved particularly in DNA and RNA binding. Also, we have observed that these proteins are well conserved in metazoans and more particularly in mammalian...
August 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28095746/targeting-of-herbal-bioactives-through-folate-receptors-a-novel-concept-to-enhance-intracellular-drug-delivery-in-cancer-therapy
#18
REVIEW
Anshita Gupta, Chanchal Deep Kaur, Shailendra Saraf, Swarnlata Saraf
Targeted drug delivery through folate receptor (FR) has emerged as a most biocompatible, target oriented, and non-immunogenic cargoes for the delivery of anticancer drugs. FRs are highly overexpressed in many tumor cells (like ovarian, lung, breast, kidney, brain, endometrial, and colon cancer), and targeting them through conjugates bearing specific ligand with encapsulated nanodrug moiety is undoubtedly, a promising approach toward tumor targeting. Folate, being an endogenous ligand, can be exploited well to affect various cellular events occurring during the progress of tumor, in a more natural and definite way...
June 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/27829319/effect-of-different-concentrations-of-oxygen-on-expression-of-sigma-1-receptor-and-superoxide-dismutases-in-human-colon-adenocarcinoma-cell-lines
#19
Michał Skrzycki, Hanna Czeczot, Magdalena Mielczarek-Puta, Dagmara Otto-Ślusarczyk, Wojciech Graboń
CONTEXT: Tumor cells due to distance from capillary vessels exist in different oxygenation conditions (anoxia, hypoxia, normoxia). Changes in cell oxygenation lead to reactive oxygen species production and oxidative stress. Sigma 1 receptor (Sig1R) is postulated to be stress responding agent and superoxide dismutases (SOD1 and SOD2) are key antioxidant enzymes. It is possible that they participate in tumor cells adaptation to different concentrations of oxygen. OBJECTIVE: Evaluation of Sig1R, SOD1, and SOD2 expression in different concentrations of oxygen (1%, 10%, 21%) in colon adenocarcinoma cell lines...
June 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/27808000/regulation-of-dendritic-cell-function-by-insulin-igf-1-pi3k-akt-signaling-through-klotho-expression
#20
Nguyen Thi Xuan, Nguyen Huy Hoang, Vu Phuong Nhung, Nguyen Thuy Duong, Nguyen Hai Ha, Nong Van Hai
Insulin or insulin-like growth factor 1 (IGF-1) promotes the activation of phosphoinositide 3 kinase (PI3K)/Akt signaling in immune cells including dendritic cells (DCs), the most potent professional antigen-presenting cells for naive T cells. Klotho, an anti-aging protein, participates in the regulation of the PI3K/Akt signaling, thus the Ca(2+)-dependent migration is reduced in klotho-deficient DCs. The present study explored the effects of insulin/IGF-1 on DC function through klotho expression. To this end, the mouse bone marrow cells were isolated and cultured with GM-CSF to attain bone marrow-derived DCs (BMDCs)...
June 2017: Journal of Receptor and Signal Transduction Research
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