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https://www.readbyqxmd.com/read/28109197/everolimus-is-better-than-rapamycin-in-attenuating-neuroinflammation-in-kainic-acid-induced-seizures
#1
Ming-Tao Yang, Yi-Chin Lin, Whae-Hong Ho, Chao-Lin Liu, Wang-Tso Lee
BACKGROUND: Microglia is responsible for neuroinflammation, which may aggravate brain injury in diseases like epilepsy. Mammalian target of rapamycin (mTOR) kinase is related to microglial activation with subsequent neuroinflammation. In the present study, rapamycin and everolimus, both as mTOR inhibitors, were investigated in models of kainic acid (KA)-induced seizure and lipopolysaccharide (LPS)-induced neuroinflammation. METHODS: In vitro, we treated BV2 cells with KA and LPS...
January 21, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28109179/quantitative-and-integrative-analysis-of-paracrine-hepatocyte-activation-by-non-parenchymal-cells-upon-lipopolysaccharide-induction
#2
Katharina Beuke, Frank A Schildberg, Federico Pinna, Ute Albrecht, Roman Liebe, Michaela Bissinger, Peter Schirmacher, Steven Dooley, Johannes G Bode, Percy A Knolle, Ursula Kummer, Kai Breuhahn, Sven Sahle
Gut-derived bacterial lipopolysaccharides (LPS) stimulate the secretion of tumor necrosis factor (TNF) from liver macrophages (MCs), liver sinusoidal endothelial cells (LSECs), and hepatic stellate cells (HSCs), which control the acute phase response in hepatocytes through activation of the NF-κB pathway. The individual and cooperative impact of non-parenchymal cells on this clinically relevant response has not been analysed in detail due to technical limitations. To gain an integrative view on this complex inter- and intracellular communication, we combined a multi-scale mathematical model with quantitative, time-resolved experimental data of different primary murine liver cell types...
January 21, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28109176/oncogenic-roles-of-smarcb1-ini1-and-its-deficient-tumors
#3
Kenichi Kohashi, Yoshinao Oda
SMARCB1/INI1 is one of the core subunit proteins of the ATP-dependent SWI/SNF chromatin remodeling complex, and is identified as a potent and bona fide tumor suppressor. Interactions have been demonstrated between SMARCB1/INI1 and key proteins in various pathways related to tumor proliferation and progression: the p16-RB pathway, WNT signaling pathway, sonic hedgehog signaling pathway and Polycomb pathway. Initially, no detectable SMARCB1/INI1 protein expression was found in malignant rhabdoid tumor cells, whereas all other kinds of tumor cells and non-tumorous tissue showed SMARCB1/INI1 protein expression...
January 21, 2017: Cancer Science
https://www.readbyqxmd.com/read/28109174/%C3%AE-%C3%AE-nac-cooperates-with-sam37-to-mediate-early-stages-of-mitochondrial-protein-import
#4
J Carlos Ponce-Rojas, M Clara Avendaño-Monsalve, A Roberto Yañez-Falcón, Fabiola Jaimes-Miranda, Erika Garay, Francisco Torres-Quiroz, Alexander DeLuna, Soledad Funes
The mitochondrial proteome is mostly composed of nuclear-encoded proteins. Such polypeptides are synthesized with signals that guide their intracellular transport to the surface of the organelle and later within the different mitochondrial sub-compartments until they reach their functional destination. It has been suggested that NAC - a cytosolic chaperone which recognizes nascent chains on translationally active ribosomes - has a role in the import of nuclear-encoded mitochondrial proteins. However, the molecular mechanisms that regulate the NAC-mediated co-translational import are still not clear...
January 21, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28109154/-inhibitory-effect-of-overexpressed-kisspeptin-on-proliferation-and-migration-of-mkn-45-gastric-cancer-cells
#5
Xin Wang, Yijiong Li, Ruihua Zhang, Chao Pang, Xiaoqing Jiao, Zhenlong Zhu, Zhengmin Wang
Objective To investigate the expression of kisspeptin in gastric adenocarcinoma and its effect on the proliferation and migration of gastric cancer cells. Methods The level of kisspeptin in 50 gastric cancer tissues and their paracancerous tissues were detected by quantitative real-time PCR and Western blotting. Kisspeptin-siRNA, control-siRNA, pEGFP-N1-kisspeptin, pEGFP-N1 were separately transfected into MKN-45 gastric cancer cells. After 48-hour culture, the levels of matrix metalloproteinase-2 (MMP-2), β-catenin, C-myc, MMP-9, kisspeptin were detected by Western blotting; MTT assay was used to detect the proliferation of MKN-45 cells; wound healing assay was performed to assess the migration ability of MKN-45 cells...
February 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28109152/-hepatic-stellate-cell-conditioned-medium-induces-proliferation-and-epithelial-mesenchymal-transition-via-activating-erk1-2-signaling-pathway-in-hepatoma-cells
#6
Yuxiao Xie, Rui Liao, Long Pan, Kai Fan, Cong Peng, Chengyou Du
Objective To investigate the influence of hepatic stellate cells (HSCs) on malignant biological behavior of hepatoma cells and related mechanisms. Methods Human hepatoma cell lines SMMC-7721 and HepG2, and hepatic stellate cell line LX-2 were cultured separately. HSC conditioned medium (LX2-CM), MAPK specific inhibitor U0126 were used to treat hepatoma cells, separately or together. The invasion and migration abilities of hepatoma cells were detected by Transwell(TM) assay, and cell proliferation was analyzed by CCK-8 assay...
February 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28109147/-co-culture-with-umbilical-cord-mesenchymal-stem-cells-promotes-the-synthesis-and-mechnism-of-milk-protein-in-bovine-mammary-epithelial-cells
#7
Yankun Zhao, Wei Shao, Chenglong Luo, Kaile Wu, Xiong Yu
Objective To explore the possible mechanism of umbilical cord mesenchymal stem cells (UCMSCs) regulating milk protein synthesis in bovine mammary gland epithelial cells (BMECs). Methods UCMSCs and BMECs were co-cultured by double-chamber Transwell(TM), and other BMECs were cultured alone as a control group. Insulin like growth factor 1 receptor (IGF-1R) inhibitor AG1024 was used to treat cells. IGF-1, β casein (CSN2) and κ casein (CSN3) content in the supernatants were determined by ELISA; the relative expression abundance of Janus kinase and signal transducer and activator of transcription factor (JAK/STAT) signaling pathway-related genes were detected by quantitative real-time PCR (qRT-PCR); and after the cells were treated with JAK2 signal blocker AG490, qRT-PCR was performed to test the relative expression abundance of CSN2 and CSN3 mRNAs...
February 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28109123/sodium-butyrate-protects-against-high-fat-diet-induced-cardiac-dysfunction-and-metabolic-disorders-in-type-ii-diabetic-mice
#8
Ling Zhang, Jianfeng Du, Naohiro Yano, Hao Wang, Yu Tina Zhao, Dubielecka-Szczerba Patricia, Shougang Zhuang, Eugene Y Chin, Gangjian Qin, Ting C Zhao
Histone deacetylases are recently identified to act as key regulators for cardiac pathophysiology and metabolic disorders. However, the function of histone deacetylase (HDAC) in controlling cardiac performance in type II diabetes and obesity remains unknown. Here we determine whether HDAC inhibition attenuates high fat diet (HFD)-induced cardiac dysfunction and improves metabolic features. Adult mice were fed with either HFD or standard chow food for 24 weeks. Starting at 12 weeks, mice were divided into four groups randomly, in which sodium butyrate (1%), a potent HDAC inhibitor, was provided to chow and HFD-fed mice in drinking water, respectively...
January 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28109119/serotonin-transporter-protects-the-placental-cells-against-apoptosis-in-caspase-3-independent-pathway
#9
Coedy Hadden, Tariq Fahmi, Anthonya Cooper, Alena V Savenka, Vladimir V Lupashin, Drucilla J Roberts, Luc Maroteaux, Sylvie Hauguel-de Mouzon, Fusun Kilic
Serotonin (5-HT) and its specific transporter, SERT play important roles in pregnancy. Using placentas dissected from 18d gestational SERT-knock out (KO), peripheral 5-HT (TPH1)-KO and wild-type (WT) mice, we explored the role of 5-HT and SERT in placental functions in detail. An abnormal thick band of fibrosis and necrosis under the giant cell layer in SERT-KO placentas appeared only moderately in TPH1-KO and minimally present in WT placentas. The majority of the changes were located at the junctional zone of the placentas in SERT...
January 21, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28109112/-targeted-imaging-ability-of-a-biotinylated-imaging-probe-biotin-s-s-rhodol-for-breast-cancer-cells-in-vitro
#10
Bi-Juan Wu, Xing-Zi Zhou, Jing-Wen Sun, Cui-Wen Tan, Xin-Rong Wu
OBJECTIVE: To investigate performance of a biotinylated imaging probe 3a for targeted imaging of breast cancer cells. METHODS: Ultraviolet absorption spectrum and fluorescence spectrum were employed to analyze the spectral characteristics of 3a. The fluorescence spectrums of 3a treated with different concentrations of glutathione (GSH) were obtained to determine the sensibility of 3a to GSH. Flow cytometry was used to determine the cellular uptake of 3a by MCF-7 cells, MDA-MB-231 cells and Hs 578Bst cells in the presence or absence of biotin, and the imaging performance of 3a in the 3 cell lines was assessed under an inverted fluorescent microscope...
January 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28109109/-role-of-camp-creb-bdnf-signaling-pathway-in-anti-depressive-effect-of-vortioxetine-in-mice
#11
Hui Yu, Jia-Jia Chen, Bing-Qing Zeng, Qiu-Ping Zhong, Jiang-Ping Xu, Yong-Gang Liu
OBJECTIVE: To investigate the effects of vortioxetine on cAMP/CREB/BDNF signal pathway. METHODS: Forty Kunming mice were randomized into control group and chronic unpredictable mild stress (CUMS) group. After establishment of depressive models verified by sucrose preference test, the mice in CUMS group were divided into model group, fluoxetine group and vortioxetine group. The antidepressive effect of vortioxetine was analyzed by tail suspension test, forced swim test and open field test...
January 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28109103/-value-of-diffusion-weighted-imaging-1-h-magnetic-resonance-spectroscopy-and-3d-whole-brain-arterial-spin-labeling-in-the-diagnosis-of-medulloblastoma
#12
Dong-Liang Cheng, Wen-Sheng Wang, Yi-Xin Hu, Meng-Lin Chen, Ge Wen, Li-Na Cheng, Jing Wu, Liu-Qing Yan
OBJECTIVE: To explore the value of diffusion-weighted imaging (DWI), (1)H-magnetic resonance spectroscopy (1H-MRS) and 3D whole-brain arterial spin labeling (3D ASL) in the diagnosis of medulloblastoma in the posterior cranial fossa. METHODS: The magnetic resonance imaging (MRI) findings of 16 patients with pathologically confirmed medulloblastoma in the posterior cranial fossa were analyzed retrospectively. All the patients were examined with plane and enhanced brain MRI scans; 5 patients also underwent examinations with DWI, 12 with MRS, and 5 with 3D ASL...
January 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28109094/-lactobacillus-rhamnosus-gg-conditioned-medium-prevents-e-coli-meningitis-by-inhibiting-nuclear-factor-%C3%AE%C2%BAb-pathway
#13
Qing Zeng, Xiao-Long He, Han-Sheng Xiao, Lei DU, Yu-Jing Li, Le-Cheng Chen, Hui-Wen Tian, Sheng-He Huang, Hong Cao
OBJECTIVE: To investigate whether Lactobacillus rhamnosus GG conditioned medium(LGG-CM)has preventive effect against E. coli K1-induced neuropathogenicity in vitro by inhibiting nuclear factor-κB (NF-κB) signaling pathway. METHODS: An in vitro blood-brain barrier (BBB) model was constructed using human brain microvascular endothelial cells (HBMECs). The effect of LGG-CM on E. coli-actived NF-κB signaling pathway was assayed using Western blotting. Invasion assay and polymorphonuclear leukocyte (PMN) transmigration assay were performed to explore whether LGG-CM could inhibit E...
January 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28109089/betulinic-acid-inhibits-cell-proliferation-in-human-oral-squamous-cell-carcinoma-via-modulating-ros-regulated-p53-signaling
#14
Huan Shen, Li Liu, Yongjin Yang, Wenxing Xun, Kewen Wei, Guang Zeng
Oral squamous cell carcinoma (OSCC) is a common cancer of the head and neck. Betulinic acid (BA) is a naturally occurring pentacyclic triterpenoid. The present study was designed to explore the effects of BA on OSCC KB cell proliferation <em>in vitro</em> and implanted tumor growth <em>in vivo</em> and to examine the possible molecular mechanisms. The results showed that BA dose-dependently inhibited KB cell proliferation and decreased implanted tumor volume. In addition, BA significantly promoted mitochondrial apoptosis, as reflected by increase of TUNEL-positive cells and activities of caspase 3 and 9, increase of Bax expression and decrease of Bcl-2 expression and mitochondrial oxygen consumption rate...
January 20, 2017: Oncology Research
https://www.readbyqxmd.com/read/28109086/grade-dependent-expression-of-nima-related-kinase-2-in-glioma-and-its-cellular-upregulatory-activity-on-proliferation-and-invasion
#15
Li Tian, Peng Cheng, Huaiyu Sun, Yulin Wang, Lei Zhang, Zongze Guo
Glioma is one of the most common tumors in central nervous system. The median life expectancy for glioma patients is only 13-15 months. NIMA-related expressed kinase 2 (NEK2) is a kind of serine-threonine kinases and involves in carcinogenesis and progression of cancer, however, the specific roles in the glioma remains unknown. We found the high expression of NEK2 was positively correlated with deteriorated severity of glioma. Therefore, we sought to investigate the effects of NEK2 on U87 and U251 cells. To explore the expression of NEK2 and alteration of signaling pathway factors, qRT-PCR and Western blot analysis were performed...
January 20, 2017: Oncology Research
https://www.readbyqxmd.com/read/28109082/microrna-133a-inhibits-proliferation-of-gastric-cancer-cells-by-downregulating-erbb2-expression
#16
Chang Li, Xiaoping Li, Shuohui Gao, Chang Li, Lianjun Ma
Gastric cancer is the fourth most common cancer and the second leading cause of cancer-related deaths worldwide. It hasalready been established that miR-133a is involved in gastric cancer. In this study, we aimed to investigate the molecular mechanisms by which miR-133a inhibits the proliferation of gastric cancer cells. We analyzed the proliferative capacity of human gastric cancer cells SNU-1, using MTT assay. Cell apoptosis was determined using flow cytometry. The expression levels of ERBB2, p-ERK1/2 and p-AKT in SNU-1 cells were determined using Western blot analysis...
January 20, 2017: Oncology Research
https://www.readbyqxmd.com/read/28109079/silencing-of-ribosomal-protein-l34-rpl34-inhibits-the-proliferation-and-invasion-of-esophageal-cancer-cells
#17
Huijie Fan, Jing Li, Yongxu Jia, Jingjing Wu, Long Yuan, Mingjun Li, Jiangqi Wei, Benling Xu
Ribosomal protein L34 (RPL34) belongs to the L34E family of ribosomal proteins and contains a zinc finger motif. Aberrant expression of RPL34 has been reported in several human malignancies. However, the precise role and potential underlying mechanisms of RPL34 in human esophageal cancer remain largely unknown. Thus, the objective of this study was to investigate the role of RPL34 in esophageal cancer progression. Our results showed that the expression of RPL34 at both mRNA and protein levels was frequently up-regulated in esophageal cancer cell lines...
January 20, 2017: Oncology Research
https://www.readbyqxmd.com/read/28109078/3-phosphoinositide-dependent-protein-kinase-1-pdk-1-promotes-migration-and-invasion-in-gastric-cancer-cells-through-activating-the-nf-%C3%AE%C2%BAb-pathway
#18
Ning Wu, Changyu He, Bohui Zhu, Jinling Jiang, Yiwen Chen, Tao Ma
Gastric cancer (GC) is one of the most common cancers and the second leading cause of cancer deaths in the world. Manyfactors were reported involving the progression and development of GC. In this study, we aimed to investigate the correlation of 3-phosphoinositide dependent protein kinase 1 (PDK-1) with cell viability, cell migration, and cell invasion of GC. The expression of PDK-1 was measured in different GC cell lines. Thereafter, the expression of PDK-1 was interfered by small hairpin RNA (shRNA) and then incubated with or without the inhibitor of NF-κB pyrrolidine dithiocarbamate (PDTC)...
January 20, 2017: Oncology Research
https://www.readbyqxmd.com/read/28109075/knockdown-of-tacc3-inhibits-the-proliferation-and-invasion-of-human-renal-cell-carcinoma-cells
#19
Feng Guo, Yaquan Liu
Transforming acidic coiled-coil protein 3 (TACC3) is a member of the TACC family and plays an important role in regulating cell mitosis, transcription and tumorigenesis. However, the expression pattern and roles of TACC3 in renal cell carcinoma (RCC) remain unclear. The aim of this study was to investigate the role of TACC3 in RCC. We demonstrated overexpression of TACC3 in human RCC cell lines at both RNA and protein levels. Moreover, knockdown of TACC3 repressed RCC cell proliferation, migration and invasion <em>in vitro</em>...
January 20, 2017: Oncology Research
https://www.readbyqxmd.com/read/28109059/maintaining-stability-of-the-rumen-ecosystem-is-associated-with-changes-of-microbial-composition-and-epithelial-tlr-signaling
#20
Hong Shen, Zhan Chen, Zanming Shen, Zhongyan Lu
We used the goat as a model to study the effects of rumen microbial composition and epithelial TLR signaling on maintaining rumen stability during exogenous butyrate interference. Six cannulated goats received a rapid intraruminal infusion of 0.1 mol/L potassium phosphate buffer with (BT, n = 3) or without (CO, n = 3) 0.3 g/kg·BW·day sodium butyrate for 28 days. The ruminal pH and the concentration of total SCFA were not affected by the interference. 16S rRNA gene amplicon sequencing revealed a change in microbial composition after the butyrate infusion...
January 21, 2017: MicrobiologyOpen
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