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https://www.readbyqxmd.com/read/29458195/human-dorsal-root-ganglion-pulsed-radiofrequency-treatment-modulates-cerebrospinal-fluid-lymphocytes-and-neuroinflammatory-markers-in-chronic-radicular-pain
#1
Basabjit Das, Melissa Conroy, David Moore, Joanne Lysaght, Connail McCrory
Radicular pain is a common cause of disability. Traditionally treatment has been either epidural steroid injection providing short-term relief or surgery with associated complications. Pulsed radiofrequency (PRF) applied to the Dorsal Root Ganglion (DRG) is a minimally invasive day-care treatment, which is gaining significant clinical acceptance in a selective group of patients with pure radicular pain. Greater insights into the immunomodulatory effects of this procedure may help to further optimise its application and find alternative treatment options...
February 16, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29458191/a-novel-neuropilin-1-binding-sequence-in-the-human-t-cell-lymphotropic-virus-type-1-envelope-glycoprotein
#2
Hideki Kusunoki, Toshiyuki Tanaka, Toshiyuki Kohno, Kazuhiko Matsuhashi, Kazuo Hosoda, Kaori Wakamatsu, Isao Hamaguchi
Entry of human T-cell lymphotropic virus type 1 (HTLV-1) into host cells is mainly mediated by interactions between the viral envelope glycoprotein surface unit (SU) and three host receptors: glucose transporter type 1, heparin/heparan sulfate proteoglycan, and neuropilin-1 (Nrp1). Here, we analyzed the interaction between HTLV-1 SU and Nrp1 using nuclear magnetic resonance and isothermal titration calorimetry. We found that two SU peptides, residues 85-94 and residues 304-312, bound directly to the Nrp1 b1 domain with affinities of 7...
February 16, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29458182/a-direct-gateway-into-the-extracellular-space-unconventional-secretion-of-fgf2-through-self-sustained-plasma-membrane-pores
#3
REVIEW
Julia P Steringer, Walter Nickel
As illustrated by a diverse set of examples in this special issue, multiple mechanisms of protein secretion have been identified in eukaryotes that do not involve the endoplasmic reticulum (ER) and the Golgi apparatus. Here we focus on the type I pathway with Fibroblast Growth Factor 2 (FGF2) being the most prominent example. Unconventional secretion of FGF2 from cells is mediated by direct protein translocation across the plasma membrane. A unique feature of this process is the ability of FGF2 to form its own membrane translocation intermediate through oligomerization and membrane insertion...
February 16, 2018: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/29458170/downregulation-of-metabotropic-glutamate-receptor-5-inhibits-hepatoma-development-in-a-neurotoxin-rotenone-induced-parkinson-s-disease-model
#4
Xiao Xu Bai, Li Gu, Hui Min Yang, Shao Song Xi, Ning Xia, Song Zhang, Hong Zhang
Clinical epidemiological studies have shown that there is a link between Parkinson's disease (PD) and cancer, but how PD regulates cancer development remains unknown. In our study, the effect of metabotropic glutamate receptor 5 (mGlu5 ) on hepatoma was explored in a rotenone-induced PD model both in vitro and in vivo. We found that conditioned media derived from MN9D dopaminergic neuronal cells by rotenone-induced toxicity inhibited the growth, migration, invasion and promoted apoptosis of Hepa1-6 cells, which corresponded with decreased expression of mGlu5 ...
February 16, 2018: Toxicology Letters
https://www.readbyqxmd.com/read/29458141/long-non-coding-rnas-within-the-tumour-microenvironment-and-their-role-in-tumour-stroma-cross-talk
#5
Filippo Del Vecchio, Gui Han Lee, Joamir Hawezi, Rahul Bhome, Sian Pugh, Emre Sayan, Gareth Thomas, Graham Packham, John Primrose, Martin Pichler, Alexander Mirnezami, George Calin, Marc Bullock
Long non-coding RNAs (lncRNAs) are a diverse class of RNA transcripts which have limited protein coding potential. They perform a variety of cellular functions in health, but have also been implicated during malignant transformation. A further theme in recent years is the critical role of the tumour microenvironment and the dynamic interactions between cancer and stromal cells in promoting invasion and disease progression. Whereas the contribution of deregulated lncRNAs within cancer cells has received considerable attention, their significance within the tumour microenvironment is less well understood...
February 16, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29458137/bisphenol-a-alters-oocyte-maturation-by-prematurely-closing-gap-junctions-in-the-cumulus-cell-oocyte-complex
#6
Deyanira Guadalupe Acuña-Hernández, Laura Arreola-Mendoza, Ramsés Santacruz-Márquez, Sihomara Patricia García-Zepeda, Lyda Yuliana Parra-Forero, Jesús Alberto Olivares-Reyes, Isabel Hernández-Ochoa
In ovarian follicles, cumulus cells communicate with the oocyte through gap junction intercellular communication (GJIC), to nurture the oocyte and control its meiosis arrest and division. Bisphenol A (BPA) is a monomer found in polycarbonate-made containers that can induce functional alterations, including impaired oocyte meiotic division and reduced molecule transfer in GJIC. However, how BPA alters oocyte meiotic division is unclear. We investigated whether BPA effects on oocyte meiotic division were correlated with reduced transfer in GJIC...
February 16, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29458091/role-of-the-ssek1-gene-in-the-pathogenicity-of-salmonella-enterica-serovar-enteritidis-in-vitro-and-in-vivo
#7
Yadong Yang, Chuan Yu, Ke Ding, Chunjie Zhang, Chengshui Liao, Yanyan Jia, Jing Li, Xiangchao Cheng
Salmonella enteritidis is a common food-borne pathogen associated with consumption of contaminated poultry meat and eggs, which frequently causes gastroenteritis in humans. Salmonella secreted effector K1 (SseK1), as a translocated and secreted protein has been identified to be essential for the virulence of Salmonella typhimurium in host cells. However, the role of the sseK1 gene in the pathogenicity of S. enteritidis remain unclear. In this study, a sseK1 deletion mutant of S. enteritidis was constructed and its biological characteristics were examined...
February 16, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29458087/ngf-fak-signal-pathway-is-implicated-in-angiogenesis-after-acute-cerebral-ischemia-in-rats
#8
Hai-Ting Zhao, Yu-Hu Zhang, Ying-Hui Zhang, Yue Shen, Yi-Dan Zhang, Fang-Fang Bi, Bo Xiao, Hao Zhang, Wen Ye, Hong-Hai Zhang, Yi-Wei Liao
Neurogenesis in the cerebral infarction after an ischemic event is important to the rehabilitation of patients. However, the mechanism of angiogenesis around cerebral ischemia is not clear. Our study designed to test whether the nerve growth factor (NGF)-P-focal adhesion kinase (FAK) signaling pathway for associations with angiogenesis plays a key role in post-acute cerebral ischemia of rats. Firstly, we implanted the Matrigel, a carrier of basement membrane matrix, into the abdominal skin of rats to identify the relevant components of the NGF-P-FAK signaling pathway related to angiogenesis...
February 16, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29458069/high-expression-of-nprl2-is-linked-to-poor-prognosis-in-patients-with-prostate-cancer
#9
Zhixiong Chen, Shengjun Luo, Yanlin Chen, Xuemei Xie, Zhongbo Du, Li Jiang
As a tumor suppressor candidate gene, NPRL2 has anti-cancer effects against several cancers, but its potential role in prostate cancer (PCa) has not been reported. The present study aimed to explore the expression of NPRL2 in PCa and its potential clinical significance. Our results showed that expression of NPRL2 in PCa tissues was significantly higher than in non-PCa tissues (P<.001). High NPRL2 expression in PCa tissue was significantly correlated with a high Gleason grade group (P<.001), high pT stage (P<...
February 16, 2018: Human Pathology
https://www.readbyqxmd.com/read/29458061/decreased-mcp-1-ccr2-axis-mediated-chemotactic-effect-of-conjunctival-fibroblasts-after-transdifferentiation-into-myofibroblasts
#10
Utako Tsutsumi-Kuroda, Toshihiro Inoue, Akiko Futakuchi, Kohei Shobayashi, Eri Takahashi, Sachi Kojima, Miyuki Inoue-Mochita, Tomokazu Fujimoto, Hidenobu Tanihara
The purpose of this study is to investigate the change in chemotactic effects of human conjunctival fibroblasts (HConFs) after transdifferentiation into myofibroblasts, and to explore related molecular mechanisms. HConFs were treated with 5 ng/mL transforming growth factor (TGF)-β2 for 48 h to induce transdifferentiation into myofibroblasts. The cytokine concentrations in the conditioned media of HConFs were measured by multiplex bead-based immunoassays. The Boyden chamber assay was used to assess the chemotactic effects using the monocyte cell line, THP-1 cells...
February 16, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29458060/crim1-is-required-for-maintenance-of-the-ocular-lens-epithelium
#11
Oliver H Tam, David Pennisi, Lorine Wilkinson, Melissa H Little, Fatima Wazin, Victor L Wan, Frank J Lovicu
The development and growth of the vertebrate ocular lens is dependent on the regulated proliferation of an anterior monolayer of epithelial cells, and their subsequent differentiation into elongate fiber cells. The growth factor rich ocular media that bathes the lens mediates these cellular processes, and their respective intracellular signaling pathways are in turn regulated to ensure that the proper lens architecture is maintained. Recent studies have proposed that Cysteine Rich Motor Neuron 1 (Crim1), a transmembrane protein involved in organogenesis of many tissues, might influence cell adhesion, polarity and proliferation in the lens by regulating integrin-signaling...
February 16, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29458026/knockdown-of-fascin-1-expression-suppresses-cell-migration-and-invasion-of-non-small-cell-lung-cancer-by-regulating-the-mapk-pathway
#12
Da Zhao, Tao Zhang, Xiao-Ming Hou, Xiao-Ling Ling
Fascin-1 is a cytoskeletal protein and it can specifically bind to F-actin, it can be abnormally expressed in a variety of solid tumors. Fascin-1 was identified as a factor for poor prognosis in non-small cell lung cancer (NSCLC). However, the relevant molecular mechanisms are not yet fully understood. In this study, the fascin-1 knockdown cells were produced by lentivirus infection, and then cell proliferation, invasion and cell migration assay were used to investigate the role of fascin-1 in NSCLC cells. The MAPK pathway related proteins were determined by western blot...
February 16, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29458020/circrna-circ_0067934-promotes-tumor-growth-and-metastasis-in-hepatocellular-carcinoma-through-regulation-of-mir-1324-fzd5-wnt-%C3%AE-catenin-axis
#13
Qian Zhu, Guiyu Lu, Zihua Luo, Fenfang Gui, Jinghua Wu, Dongwei Zhang, Yong Ni
Recently, increasing evidences demonstrate that circular RNAs (circRNAs) exert very important functions in the progression of human cancers. However, the functions and molecular mechanism of circ_0067934 in hepatocellular carcinoma (HCC) are largely unknown. In the present study, we found that the expression of circ_0067934 was significantly upregulated in HCC tissues and cell lines compared to adjacent normal tissues. Furthermore, we showed that circ_0067934 knockdown remarkably suppressed the proliferation, migration and invasion of Hep3B and HuH7 cells while inducing their apoptosis...
February 16, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29458012/klf10-gene-expression-modulates-fibrosis-in-dystrophic-skeletal-muscle
#14
Joseph X DiMario
Dystrophic skeletal muscle is characterized by fibrotic accumulation of extracellular matrix components that compromise muscle structure, function, and capacity for regeneration. Tissue fibrosis is often initiated and sustained through transforming growth factor β (TGFβ) signaling, and KLF10 is an immediate early gene that is transcriptionally activated in response to TGFβ signaling. It encodes a transcriptional regulator that mediates the effects of TGFβ signaling in a variety of cell types. This report presents results of investigation of the effects of loss of KLF10 gene expression in wild-type and dystrophic (mdx) skeletal muscle...
February 16, 2018: American Journal of Pathology
https://www.readbyqxmd.com/read/29458011/inflammatory-cytokines-induce-podoplanin-expression-at-the-tumor-invasive-front
#15
Akiko Kunita, Vanessa Baeriswyl, Claudia Meda, Erik Cabuy, Kimiko Takeshita, Enrico Giraudo, Andreas Wicki, Masashi Fukayama, Gerhard Christofori
Tumor invasion is a critical first step in the organismic dissemination of cancer cells and the formation of metastasis in distant organs, the most important prognostic factor and the actual cause of death in most of the cancer patients. We report here that the cell surface protein podoplanin (PDPN), a potent inducer of cancer cell invasion, is conspicuously expressed by the invasive front of squamous cell carcinomas (SCC) of the cervix in patients and in the transgenic HPV/E2 mouse model of cervical cancer...
February 16, 2018: American Journal of Pathology
https://www.readbyqxmd.com/read/29458005/14-3-3%C3%AE-promotes-esophageal-squamous-cell-carcinoma-invasion-by-repressing-s1pr2-protein-expression-through-nf-%C3%AE%C2%BAb-signaling
#16
Tong Song, Chen Sheng-Cai, Xu Kai-Ying, Fang Bin, Wang Si-Hua, Wang Jian-Jun
14-3-3ζ is overexpressed in several cancers, including esophageal squamous cell carcinoma (ESCC), and plays an important role in tumorigenesis. However, the mechanisms underlying its tumorigenesis remain unclear. Here we report that 14-3-3ζ was upregulated in ESCC tumors, compared with adjacent normal tissues; 14-3-3ζ levels were positively correlated with ESCC lymph node metastasis and recurrence. Overexpression of 14-3-3ζ promoted the tumor growth and invasion of ESCC in vitro and in vivo, whereas depletion of 14-3-3ζ suppressed these effects...
February 16, 2018: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/29457968/in-vitro-and-in-vivo-effects-of-mk2206-and-chloroquine-combination-therapy-on-endometriosis-autophagy-may-be-required-for-regrowth-of-endometriosis
#17
Sachiko Matsuzaki, Jean-Luc Pouly, Michel Canis
BACKGROUND AND PURPOSE: A high recurrence rate after medical treatment is a major clinical problem for patients with endometriosis. In the present study, we evaluated the in vitro effects of combined treatment with MK2206 (an AKT inhibitor) + chloroquine on cell growth and regrowth of endometriotic stromal cells, and the in vivo effects on endometriotic implants in a mouse xenograft model of endometriosis. EXPERIMENTAL APPROACH: We evaluated the effects of autophagy inhibition by knockdown of the ATG13, Beclin-1, and ATG12 genes and pharmacologic agents (chloroquine, bafilomycin A1, or 3-methyalanine) individually and in combination with MK2206 on cell growth and/or cell regrowth of endometriotic stromal cells in vitro...
February 19, 2018: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29457966/combined-treatment-with-valproic-acid-and-5-aza-2-deoxycytidine-synergistically-inhibits-human-clear-cell-renal-cell-carcinoma-growth-and-migration
#18
Wenjin Xi, Xu Chen, Jinbo Sun, Wei Wang, Yi Huo, Guoxu Zheng, Jieheng Wu, Yufang Li, Angang Yang, Tao Wang
BACKGROUND Histone acetylation and DNA methylation are important mammalian epigenetic modifications that participate in the regulation of gene expression. Because dysregulation of histone deacetylase and DNA methyltransferases are hallmarks of malignancy, they have become promising therapeutic targets. In this study, we explored the anti-tumor activity of valproic acid (VPA), a histone deacetylase inhibitor (HDACi) and 5-Aza-2'-deoxycytidine (5-Aza), an inhibitor of DNA methyltransferases, on renal cell carcinoma (RCC) cell lines 786-O and 769-P...
February 19, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29457847/preconditioning-with-low-level-laser-irradiation-enhances-the-therapeutic-potential-of-human-adipose-derived-stem-cells-in-a-mouse-model-of-photoaged-skin
#19
Xuan Liao, Sheng-Hong Li, Guang-Hui Xie, Shan Xie, Li-Ling Xiao, Jian-Xing Song, Hong-Wei Liu
The present study was conducted to explore the therapeutic potential of human adipose-derived stem cells (ADSCs) irradiated with a low level laser (LLL). Cultured ADSCs were treated with 650-nm GaAlAs laser irradiation at 2, 4, and 8 J/cm2 . Cell proliferation was quantified by MTT assays, cytokine secretion was determined by enzyme-linked immunosorbent assays, and adipogenic differentiation was examined by oil red O staining. Additionally, the expression profiles of putative ADSC surface markers were analyzed by quantitative real-time PCR...
February 19, 2018: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/29457830/mirna-124-3p-neuropilin-1-nrp-1-axis-plays-an-important-role-in-mediating-glioblastoma-growth-and-angiogenesis
#20
Guilong Zhang, Lukui Chen, Ahsan Ali Khan, Bingqian Li, Bin Gu, Fan Lin, Xinhui Su, Jianghua Yan
Glioblastoma Multiforme (GBM) is the most lethal brain malignancy which involves multi-gene abnormality. Unfortunately, effective therapy against GBM is still lacking. Previously, we found that NRP-1 and its downstream NRP-1/GIPC1 pathway played an important role in GBM. In this study, we further investigated the upstream signaling of NRP-1 to understand how it is regulated. Firstly, we identified that hsa-miR-124-3p was miRNA differentially expressed in GBM and in normal brain tissues by high-throughput sequencing...
February 19, 2018: International Journal of Cancer. Journal International du Cancer
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