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https://www.readbyqxmd.com/read/29245125/delayed-type-hypersensitivity-to-metals-in-connective-tissue-diseases-and-fibromyalgia
#1
REVIEW
Geir Bjørklund, Maryam Dadar, Jan Aaseth
Rheumatic diseases include a group of autoimmune disorders with environmental and genetic etiology that are characterized as a subgroup of connective tissue diseases (CTD). Rheumatoid arthritis (RA) often involves the small joints of the hands in a symmetrical fashion that can lead to loss of joint function, and RA, as well as Sjögren's syndrome (SS) and other rheumatic diseases, are often accompanied by sensitivity to metals. Numerous investigations on metal sensitivity were evaluated in this review. A detailed metal exposure history was collected by different evaluation of studies...
December 12, 2017: Environmental Research
https://www.readbyqxmd.com/read/29241676/breast-cancer-and-synchronous-multiple-myeloma-as-a-diagnostic-challenge-case-report-and-review-of-literature
#2
Marcin Sokołowski, Grzegorz Mazur, Aleksandra Butrym
Multiple myeloma is a hematological malignancy, which sometimes creates difficulties in diagnosis, based on the presence of monoclonal protein in serum/urine and plasmocyte infiltration in the bone marrow, and on the other hand, synchronous cancers are also a diagnostic challenge. We present a case report of a patient with concurrent breast cancer and multiple myeloma. A 68-year-old woman was admitted to the hospital with diagnosis of left breast cancer in first stage of the disease. In the past, she had had several episodes of thrombocytopenia, leucocytosis, and mild anaemia, which were followed by hematologist in outpatient setting...
November 22, 2017: Current Problems in Cancer
https://www.readbyqxmd.com/read/29237836/structure-of-the-paramyxovirus-piv5-nucleoprotein-in-complex-with-an-amino-terminal-peptide-of-the-phosphoprotein
#3
Megha Aggarwal, George P Leser, Christopher A Kors, Robert A Lamb
Parainfluenza virus 5 (PIV5) belongs to the family Paramyxoviridae, which consists of enveloped viruses with a non-segmented negative strand RNA genome encapsidated by the nucleoprotein (N). Paramyxovirus replication is regulated by the phosphoprotein (P) through protein-protein interactions with N and the RNA polymerase (L). The chaperone activity of P is essential to maintain the unassembled RNA-free form of N in order to prevent non-specific RNA binding and premature N oligomerization. Here, we determined the crystal structure of unassembled PIV5 N in complex with a P peptide (N0P) derived from the N-terminus of P (P50) at 2...
December 13, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29237752/ser7-of-rnapii-ctd-facilitates-heterochromatin-formation-by-linking-ncrna-to-rnai
#4
Takuya Kajitani, Hiroaki Kato, Yuji Chikashige, Chihiro Tsutsumi, Yasushi Hiraoka, Hiroshi Kimura, Yasuyuki Ohkawa, Chikashi Obuse, Damien Hermand, Yota Murakami
Some long noncoding RNAs (ncRNAs) transcribed by RNA polymerase II (RNAPII) are retained on chromatin, where they regulate RNAi and chromatin structure. The molecular basis of this retention remains unknown. We show that in fission yeast serine 7 (Ser7) of the C-terminal domain (CTD) of RNAPII is required for efficient siRNA generation for RNAi-dependent heterochromatin formation. Surprisingly, Ser7 facilitates chromatin retention of nascent heterochromatic RNAs (hRNAs). Chromatin retention of hRNAs and siRNA generation requires both Ser7 and an RNA-binding activity of the chromodomain of Chp1, a subunit of the RNA-induced transcriptional silencing (RITS) complex...
December 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29232713/long-disordered-regions-of-the-c-terminal-domain-of-abelson-tyrosine-kinase-have-specific-and-additive-functions-in-regulation-and-axon-localization
#5
Han S J Cheong, Mark F A VanBerkum
Abelson tyrosine kinase (Abl) is a key regulator of actin-related morphogenetic processes including axon guidance, where it functions downstream of several guidance receptors. While the long C-terminal domain (CTD) of Abl is required for function, its role is poorly understood. Here, a battery of mutants of Drosophila Abl was created that systematically deleted large segments of the CTD from Abl or added them back to the N-terminus alone. The functionality of these Abl transgenes was assessed through rescue of axon guidance defects and adult lethality in Abl loss-of-function, as well as through gain-of-function effects in sensitized slit or frazzled backgrounds that perturb midline guidance in the Drosophila embryonic nerve cord...
2017: PloS One
https://www.readbyqxmd.com/read/29222007/current-concepts-in-pathogenesis-diagnosis-and-management-of-smoking-related-interstitial-lung-diseases
#6
REVIEW
Anupam Kumar, Sujith V Cherian, Robert Vassallo, Eunhee S Yi, Jay H Ryu
Tobacco exposure results in various changes to the airways and lung parenchyma. While emphysema represents the more common injury pattern, in some individuals, cigarette smoke injures alveolar epithelial and other lung cells resulting in diffuse infiltrates and parenchymal fibrosis. Smoking can trigger interstitial injury patterns mediated via recruitment and inappropriate persistence of myeloid and other immune cells including eosinophils. As our understanding of the role of cigarette smoke constituents in triggering lung injury continues to evolve, so does our recognition of the spectrum of smoking-related interstitial lung changes...
December 5, 2017: Chest
https://www.readbyqxmd.com/read/29221149/prediction-on-the-risk-population-of-idiosyncratic-adverse-reactions-based-on-molecular-docking-with-mutant-proteins
#7
Hongbo Xie, Diheng Zeng, Xiujie Chen, Diwei Huo, Lei Liu, Denan Zhang, Qing Jin, Kehui Ke, Ming Hu
Idiosyncratic adverse drug reactions are drug reactions that occur rarely and unpredictably among the population. These reactions often occur after a drug is marketed, which means that they are strongly related to the genotype of the population. The prediction of such adverse reactions is a major challenge because of the lack of appropriate test models during the drug development process. In this study, we chose withdrawn drugs because the reasons why they were withdrawn and from which countries or regions is easily obtained...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29220656/mpk1-slt2-links-multiple-stress-responses-with-gene-expression-in-budding-yeast-by-phosphorylating-tyr1-of-the-rnap-ii-ctd
#8
Nathan Yurko, Xiaochuan Liu, Takashi Yamazaki, Mainul Hoque, Bin Tian, James L Manley
The RNA polymerase II largest subunit C-terminal domain consists of repeated YSPTSPS heptapeptides. The role of tyrosine-1 (Tyr1) remains incompletely understood, as, for example, mutating all Tyr1 residues to Phe (Y1F) is lethal in vertebrates but a related mutant has only a mild phenotype in S. pombe. Here we show that Y1F substitution in budding yeast resulted in a strong slow-growth phenotype. The Y1F strain was also hypersensitive to several different cellular stresses that involve MAP kinase signaling...
December 7, 2017: Molecular Cell
https://www.readbyqxmd.com/read/29219179/multidrug-resistant-lncrna-profile-in-chemotherapeutic-sensitive-and-resistant-ovarian-cancer-cells
#9
Juan Xu, Jiacong Wu, Chenyang Fu, Fang Teng, Siyu Liu, Chencheng Dai, Rong Shen, Xuemei Jia
Most ovarian cancer patients are chemosensitive initially, but finally relapse with acquired chemoresistance. Multidrug-resistance is the extremely terrible situation. The mechanism for the acquired chemoresistance of ovarian cancer patients is still not clear. LncRNAs have been recognized as the important regulator of a variety of biological processes, including the multidrug-resistant process. Here, we carried out the lncRNA sequencing of the ovarian cancer cell line A2780 and the paxitaxel resistant cell line A2780/PTX which is also cross resistant to the cisplatin and epirubicin...
December 8, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29216372/the-c-terminal-domain-of-p53-orchestrates-the-interplay-between-non-covalent-and-covalent-poly-adp-ribosyl-ation-of-p53-by-parp1
#10
Arthur Fischbach, Annika Krüger, Stephanie Hampp, Greta Assmann, Lisa Rank, Matthias Hufnagel, Martin T Stöckl, Jan M F Fischer, Sebastian Veith, Pascal Rossatti, Magdalena Ganz, Elisa Ferrando-May, Andrea Hartwig, Karin Hauser, Lisa Wiesmüller, Alexander Bürkle, Aswin Mangerich
The post-translational modification poly(ADP-ribosyl)ation (PARylation) plays key roles in genome maintenance and transcription. Both non-covalent poly(ADP-ribose) binding and covalent PARylation control protein functions, however, it is unknown how the two modes of modification crosstalk mechanistically. Employing the tumor suppressor p53 as a model substrate, this study provides detailed insights into the interplay between non-covalent and covalent PARylation and unravels its functional significance in the regulation of p53...
December 4, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29210629/development-of-a-substrate-identification-method-for-human-scp1-phosphatase-using-phosphorylation-mimic-phage-display
#11
Kodai Otsubo, Takashi Yoneda, Atsushi Kaneko, Seiya Yagi, Kazuhiro Furukawa, Yoshiro Chuman
Protein phosphorylation is strictly regulated by protein kinases and protein phosphatases, and disordered regulation of protein phosphorylation often causes serious diseases, such as cancer. Protein phosphatases are divided into two major groups: tyrosine (Tyr) phosphatases and serine/threonine (Ser/Thr) phosphatases. Substrate trapping mutants are frequently used to characterize Tyr phosphatases and identify their substrates; however, a rapid and simple method to identify substrates for Ser/Thr phosphatases has yet to be developed...
December 5, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/29202589/interstitial-lung-disease-in-systemic-autoimmune-rheumatic-diseases-a-comprehensive-review
#12
Fabiola Atzeni, Maria Chiara Gerardi, Giuseppe Barilaro, Ignazio Francesco Masala, Maurizio Benucci, Piercarlo Sarzi-Puttini
Interstitial lung diseases (ILDs) are among the most serious complications associated with systemic rheumatic diseases, and lead to significant morbidity and mortality; they may also be the first manifestation of connective tissue diseases (CTDs). The aim of this narrative review is to summarise the data concerning the pathogenesis of CTD/ILD and its distinguishing features in different rheumatic diseseas. Areas covered: The pathogenesis, clinical aspects and treatment of ILD associated with rheumatic systemic diseases and CTDs were reviewed by searching the PubMed, Medline, and Cochrane Library databases for papers published between 1995 and February 2017 using combinations of words or terms...
December 5, 2017: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/29196535/wnk1-kinase-and-the-termination-factor-pcf11-connect-nuclear-mrna-export-with-transcription
#13
Adam Volanakis, Kinga Kamieniarz-Gdula, Margarita Schlackow, Nick J Proudfoot
Nuclear gene transcription is coordinated with transcript release from the chromatin template and messenger RNA (mRNA) export to the cytoplasm. Here we describe the role of nuclear-localized kinase WNK1 (with no lysine [K] 1) in the mammalian mRNA export pathway even though it was previously established as a critical regulator of ion homeostasis in the cytoplasm. Our data reveal that WNK1 phosphorylates the termination factor PCF11 on its RNA polymerase II (Pol II) C-terminal domain (CTD)-interacting domain (CID)...
December 1, 2017: Genes & Development
https://www.readbyqxmd.com/read/29188653/-research-progress-on-the-type-%C3%A2-secretion-system-of-porphyromonas-gingivalis
#14
Zhang Jinmei, Zhao Lei, Wu Yafei
In recent years, the study found that Porphyromonas gingivalis type Ⅸ secretion system (T9SS) is a novel protein secretion system, also known as Por secretion system (PorSS). Unlike the eight protein secretion systems found in the past, the system is a polyprotein complex found only in Bacteroides. The secreted proteins have both N- and C-terminus, where the former includes Sec-dependent type Ⅰ signals peptide, and the latter contains conserved domains (C-terminal conserved domain, CTD). Porphyromonas gingivalis T9SS includes proteins such as intima, outer membrane, cytoplasm, and cell cycle, including at least 34 proteins containing CTD...
October 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29170107/analytical-and-clinical-comparison-of-two-fully-automated-immunoassay-systems-for-the-detection-of-autoantibodies-to-extractable-nuclear-antigens
#15
Pieter van der Pol, Liesbeth E Bakker-Jonges, Jac H S A M Kuijpers, Marco W J Schreurs
BACKGROUND: Detection of antinuclear antibodies (ANA) by indirect immunofluorescence assay (IIFA) is increasingly substituted by fully automated solid phase immunoassays. This study evaluated the performance of an automated chemiluminescence immunoassay (CIA) and fluorescence enzyme immunoassay (FEIA) and compared their performance to that of IIFA. METHODS: The study included an unselected prospective study population suspected of systemic autoimmune rheumatic disease...
November 21, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29169363/impact-of-connective-tissue-disease-on-the-surgical-outcomes-of-aortic-dissection-in-patients-with-cystic-medial-necrosis
#16
Toshiki Fujiyoshi, Kenji Minatoya, Yoshihiko Ikeda, Hatsue Ishibashi-Ueda, Takayuki Morisaki, Hiroko Morisaki, Hitoshi Ogino
BACKGROUND: A retrospective analysis was performed to determine the impact of genetically diagnosed connective tissue disease (CTD) on the early and late outcomes of surgical treatment for aortic dissection in patients having aortic pathology associated with cystic medial necrosis (CMN). METHODS: Between 2003 and 2013, a total of 43 patients (37 ± 12.8 years old, 23 men, 20 women) who had undergone surgery for aortic dissection associated with CMN in the aortic wall underwent genetic examinations...
November 23, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29167319/granting-an-extension-phosphorylation-of-the-pol-ii-ctd-regulates-mrnas-produced-by-read-through-from-small-nuclear-rnas
#17
Jennifer Mach
No abstract text is available yet for this article.
November 22, 2017: Plant Cell
https://www.readbyqxmd.com/read/29162720/direct-interactions-of-mitotic-arrest-deficient-1-mad1-domains-with-each-other-and-mad2-conformers-are-required-for-mitotic-checkpoint-signaling
#18
Wenbin Ji, Yibo Luo, Ejaz Ahmad, Song-Tao Liu
As a sensitive signaling system, the mitotic checkpoint ensures faithful chromosome segregation by delaying anaphase onset even when a single kinetochore is unattached to mitotic spindle microtubules. The key signal amplification reaction for the checkpoint is the conformational conversion of "open" mitotic arrest deficient 2 (O-MAD2) into "closed" MAD2 (C-MAD2). The reaction has been suggested to be catalyzed by an unusual catalyst, a MAD1:C-MAD2 tetramer, but how the catalysis is executed and regulated remains elusive...
November 21, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29157187/quantitative-weight-of-evidence-assessment-of-higher-tier-studies-on-the-toxicity-and-risks-of-neonicotinoid-insecticides-in-honeybees-1-methods
#19
Keith R Solomon, Gladys L Stephenson
A quantitative weight of evidence (QWoE) methodology was developed and used to assess many higher-tier studies on the effects of three neonicotinoid insecticides: clothianidin (CTD), imidacloprid (IMI), and thiamethoxam (TMX) on honeybees. A general problem formulation, a conceptual model for exposures of honeybees, and an analysis plan were developed. A QWoE methodology was used to characterize the quality of the available studies from the literature and unpublished reports of studies conducted by or for the registrants...
November 20, 2017: Journal of Toxicology and Environmental Health. Part B, Critical Reviews
https://www.readbyqxmd.com/read/29157159/quantitative-weight-of-evidence-assessment-of-risk-to-honeybee-colonies-from-use-of-imidacloprid-clothianidin-and-thiamethoxam-as-seed-treatments-a-postscript
#20
Keith R Solomon, Gladys L Stephenson
This paper is a postscript to the four companion papers in this issue of the Journal (Solomon and Stephenson 2017a , 2017b ; Stephenson and Solomon 2017a , 2017b ). The first paper in the series described the conceptual model and the methods of the QWoE process. The other three papers described the application of the QWoE process to studies on imidacloprid (IMI), clothianidin (CTD), and thiamethoxam (TMX). This postscript was written to summarize the utility of the methods used in the quantitative weight of evidence (QWoE), the overall relevance of the results, and the environmental implications of the findings...
November 20, 2017: Journal of Toxicology and Environmental Health. Part B, Critical Reviews
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