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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/29458137/bisphenol-a-alters-oocyte-maturation-by-prematurely-closing-gap-junctions-in-the-cumulus-cell-oocyte-complex
#4
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/29458087/ngf-fak-signal-pathway-is-implicated-in-angiogenesis-after-acute-cerebral-ischemia-in-rats
#5
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/29458061/decreased-mcp-1-ccr2-axis-mediated-chemotactic-effect-of-conjunctival-fibroblasts-after-transdifferentiation-into-myofibroblasts
#6
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
#7
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/29458057/roles-of-the-insulin-signaling-pathway-in-insect-development-and-organ-growth
#8
Xianyu Lin, Guy Smagghe
Organismal development is a complex process as it requires coordination of many aspects to grow into fit individuals, such as the control of body size and organ growth. Therefore, the mechanisms of precise control of growth are essential for ensuring the growth of organisms at a correct body size and proper organ proportions during development. The control of the growth rate and the duration of growth (or the cessation of growth) are required in size control. The insulin signaling pathway and the elements involved are essential in the control of growth...
February 16, 2018: Peptides
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
#9
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/29458012/klf10-gene-expression-modulates-fibrosis-in-dystrophic-skeletal-muscle
#10
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
#11
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/29457983/antimycobacterial-effect-of-ifng-interferon-gamma-induced-autophagy-is-dependent-on-the-hmox1-heme-oxygenase-1-mediated-increase-in-the-intracellular-calcium-levels-and-modulation-of-ppp3-calcineurin-tfeb-transcription-factor-eb-axis
#12
Nisha Singh, Pallavi Kansal, Zeeshan Ahmad, Naveen Baid, Hariom Kushwaha, Neeraj Khatri, Ashwani Kumar
IFNG (interferon gamma)-induced autophagy plays an important role in the elimination of intracellular pathogens, such as Mycobacterium tuberculosis (Mtb). However, the signaling cascade that leads to the increase in autophagy flux in response to IFNG is poorly defined. Here, we demonstrate that HMOX1 (heme oxygenase 1)-generated carbon monoxide (CO) is required for the induction of autophagy and killing of Mtb residing in macrophages in response to immunomodulation by IFNG. Interestingly, IFNG exposure of macrophages induces an increase in intracellular calcium levels that is dependent on HMOX1 generated CO...
February 19, 2018: Autophagy
https://www.readbyqxmd.com/read/29457931/synthesis-and-characterization-of-nanodiamond-growth-factor-complexes-towards-applications-in-oral-implantation-and-regenerative-medicine
#13
Julie Bang, Caleb Ting, Peter Wang, Ted Kim, Kenneth Wang, Theodore Kee, Darron Miya, Dean Ho, Dong-Keun Lee
Current challenges in the field of regenerative medicine include the need to deliver sustained concentrations of growth factors and genes that are required to induce the repair of deficient tissues. Enhancement of drug delivery and uptake may result in improved growth factor efficacy. Nanodiamonds (NDs) were explored as potential growth factor delivery agents due to the many favorable properties that they possess. For example, ND's biocompatibility has been extensively validated pre-clinically. In addition, they can be scalably produced through impact events such as detonation...
February 19, 2018: Journal of Oral Implantology
https://www.readbyqxmd.com/read/29457921/ribociclib-for-the-treatment-of-hormone-receptor-positive-human-epidermal-growth-factor-receptor-2-negative-advanced-breast-cancer
#14
Howard A Burris
The emergence of cyclin-dependent kinases 4 and 6 (CDK4/6) inhibitors marked a significant advancement in the treatment of advanced breast cancer. Ribociclib is an orally bioavailable, highly selective inhibitor of CDK4/6. In combination with various endocrine therapies, ribociclib has demonstrated clinical activity as a first-line therapy for patients with HR+, HER2- advanced breast cancer, without compromising the favorable toxicity profile associated with endocrine therapy. Thus, ribociclib is now considered a new standard of care for HR+, HER2- advanced breast cancer...
March 2018: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/29457855/experimental-study-on-tgf-%C3%AE-1-mediated-cd147-expression-in-oral-submucous-fibrosis
#15
Weiming Wang, Haofeng Xiong, Zhengmao Hu, Rongjuan Zhao, Yue Hu, Wenxin Chen, Ying Han, Liudi Yang, Xin Hu, Can Wang, Ting Mao, Kun Xia, Tong Su
OBJECTIVE: Although previous evidence indicates that CD147 is closely involved in the progression of organ fibrosis and various signaling pathways have been proven to regulate its expression, the role of CD147 in oral submucous fibrosis (OSF) remain largely unknown. METHODS: In the present study, we investigated the expression of CD147 and transforming growth factor β1 (TGF-β1) in human samples of an OSF tissue array by immunohistopathology. Pearson's correlation analysis was conducted to explore the correlation between CD147 and TGF-β1...
February 19, 2018: Oral Diseases
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
#16
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/29457693/growth-yield-and-selection-of-nosz-clade-ii-types-in-a-continuous-enrichment-culture-of-n-2-o-respiring-bacteria
#17
Monica Conthe, Lea Wittorf, J Gijs Kuenen, Robbert Kleerebezem, Sara Hallin, Mark C M van Loosdrecht
Nitrous oxide (N2 O) reducing microorganisms may be key in the mitigation of N2 O emissions from managed ecosystems. However, there is still no clear understanding of the physiological and bioenergetic implications of microorganisms possessing either of the two N2 O reductase genes (nosZ), clade I and the more recently described clade II type nosZ. It has been suggested that organisms with nosZ clade II have higher growth yields and a lower affinity constant (Ks ) for N2 O. We compared N2 O reducing communities with different nosZI/nosZII ratios selected in chemostat enrichment cultures, inoculated with activated sludge, fed with N2 O as a sole electron acceptor and growth limiting factor, and acetate as electron donor...
February 19, 2018: Environmental Microbiology Reports
https://www.readbyqxmd.com/read/29457633/binding-efficiency-of-recombinant-collagen-binding-basic-fibroblast-growth-factors-cbd-bfgfs-and-their-promotion-for-nih-3t3-cell-proliferation
#18
Zhenxu Wu, Yulai Zhou, Li Chen, Mingxin Hu, Yu Wang, Linlong Li, Zongliang Wang, Peibiao Zhang
The recombinant basic fibroblast growth factor (bFGF) containing collagen-binding domain (CBD) has been found to be a potential therapeutic factor in tissue regeneration. However, its binding efficiency and quantification remain uncertain. In this research, massive recombinant bFGFs with good bioactivity for enhancing the proliferation of NIH-3T3 cells were achieved. An ELISA-based quantitative method was set up to investigate the binding efficiency of CBD-bFGFs on collagen films. It indicated that the CBDs significantly increased the collagen-binding ability of bFGF (P < ...
February 19, 2018: Biopolymers
https://www.readbyqxmd.com/read/29457552/reciprocal-regulation-of-yap-taz-by-the-hippo-pathway-and-the-small-gtpase-pathway
#19
Ju-Won Jang, Min-Kyu Kim, Suk-Chul Bae
Yes-associated protein 1 (YAP) and transcriptional co-activator with PDZ-binding motif (TAZ) (YAP/TAZ) are transcriptional coactivators that regulate genes involved in proliferation and transformation by interacting with DNA-binding transcription factors. Remarkably, YAP/TAZ are essential for cancer initiation or growth of most solid tumors. Their activation induces cancer stem cell attributes, proliferation, and metastasis. The oncogenic activity of YAP/TAZ is inhibited by the Hippo cascade, an evolutionarily conserved pathway that is governed by two kinases, mammalian Ste20-like kinases 1/2 (MST1/2) and Large tumor suppressor kinase 1/2 (LATS1/2), corresponding to Drosophila's Hippo (Hpo) and Warts (Wts), respectively...
February 18, 2018: Small GTPases
https://www.readbyqxmd.com/read/29457462/determination-of-site-specific-phosphorylation-ratios-in-proteins-with-targeted-mass-spectrometry
#20
Lennard J M Dekker, Lona Zeneyedpour, Sandor Snoeijers, Jos Joore, Sieger Leenstra, Theo M Luider
We show that parallel reaction monitoring (PRM) can be used for exact quantification of phosphorylation ratios of proteins using stable isotope labelled peptides. We have compared two different PRM approaches on a digest of a U87 cell culture, namely direct-PRM (tryptic digest measured by PRM without any further sample preparation) and TiO2-PRM (tryptic digest enriched with TiO2 cartridges, followed by PRM measurement); these approaches are compared for the following phosphorylation sites: Neuroblast differentiation-associated protein (AHNAK S5480-p), Calcium/calmodulin-dependent protein kinase type II subunit delta (CAMK2D T337-p) and Epidermal growth factor receptor (EGFR S1166-p)...
February 19, 2018: Journal of Proteome Research
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