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https://www.readbyqxmd.com/read/29779281/-effects-of-tumor-necrosis-factor-%C3%AE-on-osteogenic-differentiation-and-notch-signaling-pathway-in-human-periodontal-ligament-stem-cells
#1
Yu Ma, Shu-Hui Li, Xin-Xin Ding, Pei-Ling Wu
OBJECTIVE: To evaluate the effects of tumor necrosis factor-α (TNF-α) on osteogenic differentiation and Notch signaling pathway of periodontal ligament stem cells (PDLSCs) and to investigate the regulatory role of Notch signaling pathway on the osteogenic differentiation of PDLSCs under the influence of TNF-α. METHODS: PDLSCs were obtained through enzyme digestion and tissue block method. The expression levels of stem cell surface markers CD105, CD90, CD146, CD45, and CD31 were detected by fluorescence activated cell sorter (FACS)...
April 1, 2018: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29779272/-effects-of-protein-kinase-c-and-motigen-activated-protein-kinase-kinase-extracellular-regulated-protein-kinases-signaling-pathway-on-mrna-level-of-inducible-nitric-oxide-synthase-in-tca8113-cells
#2
Xue-Feng Gao, Hai-Bin Jiao, Chang-Cheng Ye, Ying-Qun Liu
OBJECTIVE: To explore the regulatory mechanism of inducible nitric oxide synthase (NOS-2) expression related to proliferation of Tca8113 cells. METHODS: RNAi mediated by short hairpin RNAs was utilized to knock down NOS-2, protein kinase C (PKC)-α, PKC-β and PKC-δ. Griess Reagent played a significant role on the detection of NO product after NOS-2 silence. The cell proliferation was determined by CCK8 method. Quantitative real-time polymerase chain reaction (q-PCR) was recruited to check the mRNA level of NOS-2, PKC-α, PKC-β and PKC-δ after treated by a variety of ways...
April 1, 2018: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29779214/cyanidin-3-glucoside-inhibits-inflammatory-activities-in-human-fibroblast-like-synoviocytes-and-in-mice-with-collagen-induced-arthritis
#3
Yan Sun, Lingling Li
Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by joint tissue inflammation. Cyanidin-3-glucoside (C3G) is a major component in the flavonoid family and has shown anti-inflammatory, anti-oxidant and anti-tumor activity. In this study, we investigated the effects of C3G on lipopolysaccharides (LPS)-induced inflammation on human rheumatoid fibroblast-like synoviocytes (FLS) and on collagen-induced arthritis (CIA) mice model. We treated FLS with C3G followed by LPS induction, the expressions of tumor necrosis factor alpha (TNF-α), interleukin 1 beta (IL-1β) and IL-6 and the activation of nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and mitogen-activated protein kinase (MAPK) signaling pathway were analyzed...
May 19, 2018: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29779183/molecular-characterization-and-potential-synthetic-applications-of-gh1-%C3%AE-glucosidase-from-higher-termite-microcerotermes-annandalei
#4
Siriphan Arthornthurasuk, Wantha Jenkhetkan, Eukote Suwan, Daranee Chokchaichamnankit, Chantragan Srisomsap, Pakorn Wattana-Amorn, Jisnuson Svasti, Prachumporn T Kongsaeree
A novel β-glucosidase from higher termite Microcerotermes annandalei (MaBG) was obtained via a screening method targeting β-glucosidases with increased activities in the presence of glucose. The purified natural MaBG showed a subunit molecular weight of 55 kDa and existed in a native form as a dimer without any glycosylation. Gene-specific primers designed from its partial amino acid sequences were used to amplify the corresponding 1,419-bp coding sequence of MaBG which encodes a 472-amino acid glycoside hydrolase family 1 (GH1) β-glucosidase...
May 19, 2018: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/29779175/anthocyanins-improve-hippocampus-dependent-memory-function-and-prevent-neurodegeneration-via-jnk-akt-gsk3%C3%AE-signaling-in-lps-treated-adult-mice
#5
Muhammad Sohail Khan, Tahir Ali, Min Woo Kim, Myeung Hoon Jo, Jong Il Chung, Myeong Ok Kim
Microglia plays a critical role in the brain and protects neuronal cells from toxins. However, over-activation of microglia leads to deleterious effects. Lipopolysaccharide (LPS) has been reported to affect neuronal cells via activation of microglia as well as directly to initiate neuroinflammation. In the present study, we evaluated the anti-inflammatory and anti-oxidative effect of anthocyanins against LPS-induced neurotoxicity in an animal model and in cell cultures. Intraperitoneal injections of LPS (250 μg/kg/day for 1 week) induce ROS production and promote neuroinflammation and neurodegeneration which ultimately leads to memory impairment...
May 19, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29779049/biochemical-and-functional-interplay-between-ion-channels-and-the-components-of-the-dystrophin-associated-glycoprotein-complex
#6
REVIEW
Margarita Leyva-Leyva, Alejandro Sandoval, Ricardo Felix, Ricardo González-Ramírez
Dystrophin is a cytoskeleton-linked membrane protein that binds to a larger multiprotein assembly called the dystrophin-associated glycoprotein complex (DGC). The deficiency of dystrophin or the components of the DGC results in the loss of connection between the cytoskeleton and the extracellular matrix with significant pathophysiological implications in skeletal and cardiac muscle as well as in the nervous system. Although the DGC plays an important role in maintaining membrane stability, it can also be considered as a versatile and flexible molecular complex that contribute to the cellular organization and dynamics of a variety of proteins at specific locations in the plasma membrane...
May 19, 2018: Journal of Membrane Biology
https://www.readbyqxmd.com/read/29779043/glis1-3-transcription-factors-critical-roles-in-the-regulation-of-multiple-physiological-processes-and-diseases
#7
REVIEW
Anton M Jetten
Krüppel-like zinc finger proteins form one of the largest families of transcription factors. They function as key regulators of embryonic development and a wide range of other physiological processes, and are implicated in a variety of pathologies. GLI-similar 1-3 (GLIS1-3) constitute a subfamily of Krüppel-like zinc finger proteins that act either as activators or repressors of gene transcription. GLIS3 plays a critical role in the regulation of multiple biological processes and is a key regulator of pancreatic β cell generation and maturation, insulin gene expression, thyroid hormone biosynthesis, spermatogenesis, and the maintenance of normal kidney functions...
May 19, 2018: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29779034/ras-gtpase-activating-like-protein-iqgap1-iqgap1-promotes-breast-cancer-proliferation-and-invasion-and-correlates-with-poor-clinical-outcomes
#8
Fanye Zeng, Weihua Jiang, Wei Zhao, Yuxiang Fan, Yanhua Zhu, Hongliang Zhang
BACKGROUND Breast cancer is one of the most common female cancers in the world. As a key integrator of cell signaling pathways, IQGAP1 contributes to the development and progression of several cancers. However, the exact effects and molecular mechanisms of IQGAP1 in breast cancer progression remain poorly understood. MATERIAL AND METHODS In the present study, IQGAP1 expression was measured in 96 paired breast cancer samples and the corresponding adjacent non-cancerous tissues by immunohistochemistry and quantitative polymerase chain reaction...
May 20, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29779019/small-extracellular-vesicles-and-their-mirna-cargo-are-anti-apoptotic-members-of-the-senescence-associated-secretory-phenotype
#9
Lucia Terlecki-Zaniewicz, Ingo Lämmermann, Julie Latreille, Madhusudhan Reddy Bobbili, Vera Pils, Markus Schosserer, Regina Weinmüllner, Hanna Dellago, Susanna Skalicky, Dietmar Pum, Juan Carlos Higareda Almaraz, Marcel Scheideler, Frédérique Morizot, Matthias Hackl, Florian Gruber, Johannes Grillari
Loss of functionality during aging of cells and organisms is caused and accompanied by altered cell-to-cell communication and signalling. One factor thereby is the chronic accumulation of senescent cells and the concomitant senescence-associated secretory phenotype (SASP) that contributes to microenvironment remodelling and a pro-inflammatory status. While protein based SASP factors have been well characterized, little is known about small extracellular vesicles (sEVs) and their miRNA cargo. Therefore, we analysed secretion of sEVs from senescent human dermal fibroblasts and catalogued the therein contained miRNAs...
May 19, 2018: Aging
https://www.readbyqxmd.com/read/29778960/rapid-colorimetric-detection-of-p53-protein-function-using-dna-gold-nanoconjugates-with-applications-for-drug-discovery-and-cancer-diagnostics
#10
Enock Assah, Walter Goh, Xin Ting Zheng, Ting Xiang Lim, Jun Li, David Lane, Farid Ghadessy, Yen Nee Tan
The tumor suppressor protein p53 plays a central role in preventing cancer through interaction with DNA response elements (REs) to regulate target gene expression in cells. Due to its significance in cancer biology, relentless efforts have been directed toward understanding p53-DNA interactions for the development of cancer therapeutics and diagnostics. In this paper, we report a rapid, label-free and versatile colorimetric assay to detect wildtype p53 DNA-binding function in complex solutions. The assay design is based on a concept that alters interparticle-distances between RE-AuNPs from a crosslinking effect induced through tetramerization of wildtype p53 protein (p53-WT) upon binding to canonical DNA motifs modified on gold nanoparticles (RE-AuNPs)...
May 5, 2018: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29778844/identification-of-micrornas-with-heat-stress-responsive-and-immune-properties-in-marsupenaeus-japonicus-based-on-next-generation-sequencing-and-bioinformatics-analysis-essential-regulators-in-the-heat-stress-host-interactions
#11
Jinbin Zheng, Jiawen Cao, Yong Mao, Yongquan Su, Jun Wang
Summer mortality syndrome is one of the most serious issue for Marsupenaeus japonicus aquaculture in China. Since it causes massive economic loss and threatens sustainability of M. japonicus aquaculture industry, thus, there is an urgent desire to reveal the heat stress-host interactions mechanisms that lead to mass mortalities of M. japonicus in hot summer months. MicroRNAs (miRNAs) are small noncoding RNAs that involved in regulation of diverse biological processes, including stress and immune response, and might serve as potential regulators in the heat stress-host interactions...
May 17, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29778778/swimming-improves-cognitive-reserve-in-ovariectomized-rats-and-enhances-neuroprotection-after-global-cerebral-ischemia
#12
Meng Zhang, Yating Zhai, Yaping Sun, Wenli Zhang, Qian Li, Darrell Brann, Ruimin Wang
Cognitive reserve has been proposed to account for different responses to brain damage or pathology. Factors implicated to influence cognitive reserve include cognitive engagement, physical activity, leisure activities, stress levels, and diet. Furthermore, long-term ovariectomy (OVX), such as occurs in women that have underwent surgical menopause, has been reported to increase the risk of cognitive impairment. In the current study, we examined whether swimming improves cognitive function in long-term OVX-rats...
May 17, 2018: Brain Research
https://www.readbyqxmd.com/read/29778748/protein-kinases-are-involved-in-the-cardioprotective-effects-activated-by-platelet-glycoprotein-iib-iiia-inhibitor-tirofiban-at-reperfusion-in-rats-in-vivo
#13
Shih-Tai Chang, Ya-Ting Yang, Chi-Ming Chu, Kuo-Li Pan, Jen-Te Hsu, Ju-Feng Hsiao, Yu-Sheng Lin, Chang-Min Chung
The thrombolytic effect of platelet glycoprotein IIb/IIIa inhibitors (GP IIb/IIIa inhibitors) in myocardial infarction has been well established. Nevertheless, data on the mechanism of the cardioprotective effect of GP IIb/IIIa inhibitors in ischemic-reperfusion injury (IR) are lacking. Sprague-Dawley rats received 120min of coronary ischemia and 180min of reperfusion. A GP IIb/IIIa inhibitor was given via continuous intravenous infusion at a rate of 2 ug/kg/min 30min prior to reperfusion with/without inhibitors of PKCε (chelerythrine), PI3 kinase and Akt (wortmannin), p38 MAPK (SB203582), p42/44 MAPK (PD98059) and ERK1/2 (u0126) 15min prior to the GP IIb/IIIa inhibitor...
May 17, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29778718/nimbolide-epigenetically-regulates-autophagy-and-apoptosis-in-breast-cancer
#14
Venkatesh Pooladanda, Soumya Bandi, Sandhya Rani Mondi, Krishna Mohan Gottumukkala, Chandraiah Godugu
Autophagy is a critical regulator of cellular homeostasis and its dysregulation often results in various disease manifestations, including cancer. Nimbolide, an active chemical constituent of neem (Azadirachta indica) exhibits potent anticancer effects. Although, nimbolide mediated apoptosis activation in breast cancer cells is well known. Nevertheless, its role in autophagy induction mechanism and epigenetic alteration is not explored previously. Our current study intended to bridge the gaps in the existing research by exploring the potential of nimbolide in inducing autophagy, which could counter regulate the transformations in breast cancer...
May 17, 2018: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/29778670/possible-role-of-iron-containing-proteins-in-physiological-responses-of-soybean-to-static-magnetic-field
#15
Sanaz Shokrollahi, Faezeh Ghanati, Reza H Sajedi, Mohsen Sharifi
Iron is a component of many proteins that have crucial roles in plant growth and development, such as ferritin and catalase. Iron also, as a ferromagnetic element, is assumed to be influenced by a static magnetic field (SMF). In the present study, we examined the relationship between ferrous content and gene expression and activity of ferritin and catalase in soybean plants under the influence of 0, 20, and 30 mT SMF for 5 day, 5 h each. Exposure to 20 mT decreased gene expression of Fe transporter, ferrous and H2 O2 contents and gene expression, content and activity of ferritin and catalase...
May 11, 2018: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29778567/emp3-which-is-regulated-by-mir-663a-suppresses-gallbladder-cancer-progression-via-interference-with-the-mapk-erk-pathway
#16
Qiang Ma, Yijian Zhang, Haibin Liang, Fei Zhang, Fatao Liu, Shili Chen, Yunping Hu, Lin Jiang, Yajuan Hao, Maolan Li, Yingbin Liu
Gallbladder cancer (GBC) is the most common malignancy of the biliary tract and its molecular pathogenesis is poorly understood. Aberrant expression of epithelial membrane protein-3 (EMP3) was reported in different kinds of cancers. Our study aimed to explore the elusive functional roles and the underlying molecular mechanisms of EMP3 with respect to GBC progression. The results showed that human GBC tissues exhibited decreased levels of EMP3 compared with non-malignant tissues. Kaplan-Meier analysis indicated that low expression of EMP3 was associated with poor prognosis of GBC patients...
May 17, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29778535/lysophosphatidic-acid-receptor-lpa-6-regulates-endothelial-blood-brain-barrier-function-implication-of-hepatic-encephalopathy
#17
Kayo Masago, Yasuyuki Kihara, Keisuke Yanagida, Fumie Hamano, Shinsuke Nakagawa, Masami Niwa, Takao Shimizu
Cerebral edema is a life-threatening neurological condition characterized by brain swelling due to accumulation of excess fluid both intracellularly and extracellularly. Fulminant hepatic failure (FHF) develops cerebral edema by disrupting blood brain barrier (BBB). However, the mechanisms by which mediator induces brain edema in FHF remain to be elucidated. Here, we assessed a linkage between brain edema and lysophosphatidic acid (LPA) signaling by utilizing an animal model of FHF and in vitro BBB model. Azoxymethane-treated mice developed FHF and hepatic encephalopathy, associated with higher autotaxin (ATX) activities in serum than controls...
May 17, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29778534/fibroblast-growth-factor-19-protects-the-heart-from-oxidative-stress-induced-diabetic-cardiomyopathy-via-activation-of-ampk-nrf2-ho-1-pathway
#18
Xin Li, Di Wu, Ye Tian
Diabetes affects cardiac structure and function, where it leads to diabetic cardiomyopathy. Reactive oxygen species (ROS) produced by oxidative stress play an important role in the development of diabetic cardiomyopathy. Fibroblast growth factor (FGF) 19, an enterokine, is synthesized and released into the ileum. In the present study, we revealed that FGF19 induced an antioxidant response through stimulating the expression of nuclear erythroid factor 2 (NE-F2)-related factor 2 (Nrf2) and as well as reducing ROS production through the AMPK signaling pathway...
May 18, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29778505/novel-peptide-nanoparticle-biased-antagonist-of-ccr3-blocks-eosinophil-recruitment-and-airway-hyperresponsiveness
#19
Milica Grozdanovic, Kimberly G Laffey, Hazem Abdelkarim, Ben Hitchinson, Anantha Harijith, Hyung-Geon Moon, Gye Young Park, Lee K Rousslang, Joanne C Masterson, Glenn T Furuta, Nadya I Tarasova, Vadim Gaponenko, Steven J Ackerman
BACKGROUND: Chemokine signaling through CCR3 is a key regulatory pathway for eosinophil recruitment into tissues associated with allergic inflammation and asthma. To date, none of the CCR3 antagonists have shown efficacy in clinical trials. One reason may be their unbiased mode of inhibition that prevents receptor internalization, leading to drug tolerance. OBJECTIVE: We sought to develop a novel peptide nanoparticle CCR3 inhibitor (R321) with a biased mode of inhibition that would block G-protein signaling, but enable or promote receptor internalization...
May 17, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29778504/solitary-chemosensory-cells-are-a-primary-epithelial-source-of-interleukin-25-in-chronic-rhinosinusitis-with-nasal-polyps
#20
Michael A Kohanski, Alan D Workman, Neil N Patel, Li-Yin Hung, Julie P Shtraks, Bei Chen, Mariel Blasetti, Laurel Doghramji, David W Kennedy, Nithin D Adappa, James N Palmer, De'Broski R Herbert, Noam A Cohen
BACKGROUND: IL-25 can function as an early signal for the respiratory Type 2 response characteristic of allergic asthma and chronic rhinosinusitis with nasal polyps (CRSwNP). In the mouse gut, tuft cells are the epithelial source of IL-25. However, the source of human airway epithelial IL-25 has remained elusive. OBJECTIVE: In this study, we sought to determine if the solitary chemosensory cell (SCC) is the predominant source of IL-25 in the sinonasal epithelium...
May 17, 2018: Journal of Allergy and Clinical Immunology
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