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https://www.readbyqxmd.com/read/28963485/human-amniotic-membrane-mesenchymal-stem-cells-inhibit-neutrophil-extracellular-traps-through-tsg-6
#1
Fátima Sofía Magaña-Guerrero, Alfredo Domínguez-López, Pamela Martínez-Aboytes, Beatriz Buentello-Volante, Yonathan Garfias
The mesenchymal stem cells obtained from human amniotic membrane (hAMSC) possess immunosuppressive functions through soluble factors such as prostanoids and proteins; thus, they have been proposed to ameliorate inflammatory processes. On the other hand, activated neutrophils are cells of the first line of immune defense that are able to release extracellular traps (NETs). NETs are formed of DNA and granular components; however, the excessive release of NETs is associated with the development of autoimmune and chronic inflammatory diseases...
September 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28886696/inhibition-of-pi3k-akt-mtor-pathway-sensitizes-endometrial-cancer-cell-lines-to-parp-inhibitors
#2
Charles-André Philip, Ido Laskov, Marie-Claude Beauchamp, Maud Marques, Oreekha Amin, Joanna Bitharas, Roy Kessous, Liron Kogan, Tahira Baloch, Walter H Gotlieb, Amber Yasmeen
BACKGROUND: Phosphatase and Tensin homolog (PTEN) is a tumor suppressor gene. Loss of its function is the most frequent genetic alteration in endometrioid endometrial cancers (70-80%) and high grade tumors (90%). We assessed the sensitivity of endometrial cancer cell lines to PARP inhibitors (olaparib and BMN-673) and a PI3K inhibitor (BKM-120), alone or in combination, in the context of their PTEN mutation status. We also highlighted a direct pathway linking PTEN to DNA repair. METHODS: Using endometrial cancer cellular models with known PTEN status, we evaluated their homologous recombination (HR) functionality by RAD51 foci formation assay...
September 8, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28859698/validated-hplc-dad-method-for-the-simultaneous-determination-of-six-selected-drugs-used-in-the-treatment-of-glaucoma
#3
Mostafa M Baker, Tarek S Belal
This work presents a simple, sensitive, and generic HPLC–diode-array detection method for the simultaneous determination of six drugs prescribed for the treatment of open-angle glaucoma and ocular hypertension. The investigated drugs include brimonidine tartarate (BMN), acetazolamide (AZA), brinzomaide (BZA), dorzolamide HCl (DZA), levobunolol HCl (LVB), and timolol maleate (TIM). Efficient chromatographic separation was achieved using a Thermo Hypersil BDS C18 column (4.6 × 250 mm, 5 µm) with a mobile phase consisting of phosphate buffer pH 5 and acetonitrile in a ratio of 78 + 22...
September 1, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28797905/evidence-for-the-role-of-bmnpv-bm65-protein-in-the-repair-of-ultraviolet-induced-dna-damage
#4
Qi Tang, Peng Wu, Zhaoyang Hu, Yanhua Yang, Lipeng Qiu, Hanqing Liu, Shanying Zhu, Zhongjian Guo, Hengchuan Xia, Keping Chen, Guohui Li
It is unclear how, or to what extent, baculovirus DNA that has been damaged by ultraviolet (UV) light is repaired during infection and replication. In our previous study, expression of Bombyx mori nucleopolyhedrovirus (BmNPV) ORF Bm65, a homolog of Autographa californica multiple nucleopolyhedrovirus (AcMNPV) ac79, correlated with decreased inactivation of virus by UV irradiation. In the current study, we accumulated more evidence pointing to a role for Bm65 in repair of UV-induced DNA damage. The localization of Bm65 was studied using enhanced green fluorescent protein (EGFP) fusion constructs expressed in BmN cells transfected with a Bm65 expression plasmid...
October 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28680961/bone-marrow-necrosis-in-newly-diagnosed-acute-leukemia-two-case-reports-and-review-of-the-literature
#5
Adrien Quintela, Pierre Sujobert, Isabelle Tigaud, Sandrine Hayette, Martine Ffrench, Gilles Salles, Xavier Thomas, Adriana Plesa
Bone marrow necrosis (BMN) in acute leukemia is a rare histopathological entity at the time of initial diagnosis. However, it represents an important diagnostic and prognostic challenge. Two cases of BMN are reported: a 44-year-old patient with B cell precursor (BCP) acute lymphoblastic leukemia (ALL) and a 27-year-old man with FAB-M5 acute myeloid leukemia (AML) who both presented with bone marrow failure and extensive necrosis. From these clinical cases, we conducted a brief review of the literature.
2017: Oncology and Therapy
https://www.readbyqxmd.com/read/28668346/identification-and-characterization-of-vp7-gene-in-bombyx-mori-cytoplasmic-polyhedrosis-virus
#6
Lei He, Xiaolong Hu, Min Zhu, Zi Liang, Fei Chen, Liyuan Zhu, Sulan Kuang, Guangli Cao, Renyu Xue, Chengliang Gong
The genome of Bombyx mori cytoplasmic polyhedrosis virus (BmCPV) contains 10 double stranded RNA segments (S1-S10). The segment 7 (S7) encodes 50kDa protein which is considered as a structural protein. The expression pattern and function of p50 in the virus life cycle are still unclear. In this study, the viral structural protein 7 (VP7) polyclonal antibody was prepared with immunized mouse to explore the presence of small VP7 gene-encoded proteins in Bombyx mori cytoplasmic polyhedrosis virus. The expression pattern of vp7 gene was investigated by its overexpression in BmN cells...
September 5, 2017: Gene
https://www.readbyqxmd.com/read/28664165/clearance-of-heparan-sulfate-and-attenuation-of-cns-pathology-by-intracerebroventricular-bmn-250-in-sanfilippo-type-b-mice
#7
Mika Aoyagi-Scharber, Danielle Crippen-Harmon, Roger Lawrence, Jon Vincelette, Gouri Yogalingam, Heather Prill, Bryan K Yip, Brian Baridon, Catherine Vitelli, Amanda Lee, Olivia Gorostiza, Evan G Adintori, Wesley C Minto, Jeremy L Van Vleet, Bridget Yates, Sara Rigney, Terri M Christianson, Pascale M N Tiger, Melanie J Lo, John Holtzinger, Paul A Fitzpatrick, Jonathan H LeBowitz, Sherry Bullens, Brett E Crawford, Stuart Bunting
Sanfilippo syndrome type B (mucopolysaccharidosis IIIB), caused by inherited deficiency of α-N-acetylglucosaminidase (NAGLU), required for lysosomal degradation of heparan sulfate (HS), is a pediatric neurodegenerative disorder with no approved treatment. Intracerebroventricular (ICV) delivery of a modified recombinant NAGLU, consisting of human NAGLU fused with insulin-like growth factor 2 (IGF2) for enhanced lysosomal targeting, was previously shown to result in marked enzyme uptake and clearance of HS storage in the Naglu(-/-) mouse brain...
September 15, 2017: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/28542469/biophysical-markers-of-the-peripheral-vasoconstriction-response-to-pain-in-sickle-cell-disease
#8
Patjanaporn Chalacheva, Maha Khaleel, John Sunwoo, Payal Shah, Jon A Detterich, Roberta M Kato, Wanwara Thuptimdang, Herbert J Meiselman, Richard Sposto, Jennie Tsao, John C Wood, Lonnie Zeltzer, Thomas D Coates, Michael C K Khoo
Painful vaso-occlusive crisis (VOC), a complication of sickle cell disease (SCD), occurs when sickled red blood cells obstruct flow in the microvasculature. We postulated that exaggerated sympathetically mediated vasoconstriction, endothelial dysfunction and the synergistic interaction between these two factors act together to reduce microvascular flow, promoting regional vaso-occlusions, setting the stage for VOC. We previously found that SCD subjects had stronger vasoconstriction response to pulses of heat-induced pain compared to controls but the relative degrees to which autonomic dysregulation, peripheral vascular dysfunction and their interaction are present in SCD remain unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28535791/clinical-outcomes-in-a-subpopulation-of-adults-with-morquio-a-syndrome-results-from-a-long-term-extension-study-of-elosulfase-alfa
#9
D Hughes, R Giugliani, N Guffon, S A Jones, K E Mengel, R Parini, R Matousek, S M Hawley, A Quartel
BACKGROUND: This post hoc subanalysis examined outcomes in adult patients with Morquio A (mucopolysaccharidosis IVA) who received enzyme replacement therapy (ERT) with elosulfase alfa over a 120-weeks period. Patients ≥18 years of age evaluated in an open-label, long-term extension study of elosulfase alfa (modified per protocol [MPP], n = 32; intent-to-treat [ITT], n = 37; MOR-005; NCT01415427) were compared with the ≥18-year-old untreated population with 2-years follow-up from a Morquio A natural history study (n = 10; MorCAP; NCT00787995)...
May 23, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28465230/molecular-characterization-and-expression-analysis-of-turtle-protein-in-silkworm-that-is-associated-with-nosema-bombycis-infection
#10
Feng Zhu, Shengyan Xiao, Yonghong Zhang, Yulan Shao, Fenfen Tang, Shiliang Chen, Xingrong Bai
In this report, we describe the cloning and characterization of a member of the immunoglobulin superfamily (IgSF); i.e., Turtle. The cDNA of Turtle was cloned from the silkworm Bombyx mori using the rapid amplification of cDNA ends (RACE) technique. Three isoforms of Bombyx Turtle were obtained, including Bmtutl-464, Bmtutl-519, and Bmtutl-810. The three isoforms had identical 27-amino acid signal peptides and four extracellular immunoglobulin (Ig) domains (IgI-IgIV). Sequence similarity and phylogenic analysis indicated that Bmtutl-810 belongs to the group of insect Turtle isoforms and shares 76...
April 30, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28414724/serine-protease-bm-sp142-was-differentially-expressed-in-resistant-and-susceptible-bombyx-mori-strains-involving-in-the-defence-response-to-viral-infection
#11
Guohui Li, Qian Zhou, Lipeng Qiu, Qin Yao, Keping Chen, Qi Tang, Zhaoyang Hu
Bm-SP142 is a 35 kDa protease in the silkworm, but its exact functions remain unknown. In this study, sequence alignment revealed that the His-Asp-Ser catalytic triad is embedded in the TAAHC-DIAL-GDSGGP sequence motif, establishing Bm-SP142 as a serine protease. Soluble recombinant GST-BmSP142 was expressed and purified, and serine protease activity was confirmed in vitro. RT-qPCR results indicated that Bm-SP142 was mainly expressed in the middle part of the silkworm midgut, and Bm-SP142 transcripts were significantly up-regulated at 24 hours post infection (hpi) in BmBDV-resistant strains (798) inoculated with BmBDV and BmNPV-resistant strains (NB) inoculated with BmNPV, but not in BmBDV-susceptible strains (306)...
2017: PloS One
https://www.readbyqxmd.com/read/28393918/inhibition-of-expression-of-the-circadian-clock-gene-period-causes-metabolic-abnormalities-including-repression-of-glycometabolism-in-bombyx-mori-cells
#12
Hui Tao, Xue Li, Jian-Feng Qiu, Wen-Zhao Cui, Yang-Hu Sima, Shi-Qing Xu
Abnormalities in the circadian clock system are known to affect the body's metabolic functions, though the molecular mechanisms responsible remain uncertain. In this study, we achieved continuous knockdown of B. mori Period (BmPer) gene expression in the B. mori ovary cell line (BmN), and generated a Per-KD B. mori model with developmental disorders including small individual cells and slow growth. We conducted cell metabolomics assays by gas chromatography/liquid chromatography-mass spectrometry and showed that knockdown of BmPer gene expression resulted in significant inhibition of glycometabolism...
April 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28350129/apoptosis-is-augmented-in-high-grade-serous-ovarian-cancer-by-the-combined-inhibition-of-bcl-2-bcl-xl-and-parp
#13
Takuhei Yokoyama, Elise C Kohn, Ethan Brill, Jung-Min Lee
The aim of our study was to evaluate possible synergistic cytotoxic effects of the combination treatment with the BH3-mimetic ABT-263 and the PARP inhibitor BMN 673 in high-grade serous ovarian cancer (HGSOC) cells using clinically achievable concentrations of each drug. In vitro cytotoxic effects of ABT-263 and BMN 673 were assessed by XTT assay in three HGSOC cell lines: OVCAR3, OVCAR8, and OV90 cells. Combination index values and synergy/antagonism volumes were used to determine synergy. The drug effects on DNA damage accumulation, cell cycle progression, apoptosis induction, and expression levels of Bcl-2 family proteins were examined to dissect molecular mechanisms...
March 15, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28211356/correction-synergistic-activity-of-parp-inhibition-by-talazoparib-bmn-673-with-temozolomide-in-pediatric-cancer-models-in-the-pediatric-preclinical-testing-program
#14
(no author information available yet)
No abstract text is available yet for this article.
February 15, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28160078/proteomic-analysis-of-bmn-cell-lipid-rafts-reveals-roles-in-bombyx-mori-nucleopolyhedrovirus-infection
#15
Xiaolong Hu, Min Zhu, Zi Liang, Dhiraj Kumar, Fei Chen, Liyuan Zhu, Sulan Kuang, Renyu Xue, Guangli Cao, Chengliang Gong
The mechanism of how Bombyx mori nucleopolyhedrovirus (BmNPV) enters cells is unknown. The primary components of membrane lipid rafts are proteins and cholesterol, and membrane lipid rafts are thought to be an active region for host-viral interactions. However, whether they contribute to the entry of BmNPV into silkworm cells remains unclear. In this study, we explored the membrane protein components of lipid rafts from BmN cells with mass spectrometry (MS). Proteins and cholesterol were investigated after establishing infection with BmNPV in BmN cells...
April 2017: Molecular Genetics and Genomics: MGG
https://www.readbyqxmd.com/read/28065477/quantitative-analysis-of-the-yield-of-avian-h7-influenza-virus-haemagglutinin-protein-produced-in-silkworm-pupae-with-the-use-of-the-codon-optimized-dna-a-possible-oral-vaccine
#16
Kuniaki Nerome, Sayaka Matsuda, Kenichi Maegawa, Shigeo Sugita, Kazumichi Kuroda, Kazunori Kawasaki, Reiko Nerome
In this study, we aimed to quantitatively compare the increased production of three H7 influenza virus-like particle (VLP) haemagglutinin (HA) with the use of a codon-optimized single HA gene in silkworm pupae. Recombinant baculovirus (Korea H7-BmNPV) could produce 0.40 million HA units per pupa, corresponding to 1832μg protein. The yield of the HA produced in larva was estimated to be approximately 0.31 million HA units per larva, and there were no significant differences between the three HA proteins. We could establish efficient recovery system of HA production in larvae and pupae with the use of three cycles sonication methods...
February 1, 2017: Vaccine
https://www.readbyqxmd.com/read/28032930/20-hydroxyecdysone-enhances-the-expression-of-the-chitinase-5-via-broad-complex-zinc-finger-4-during-metamorphosis-in-silkworm-bombyx-mori
#17
X Zhang, S Zheng
Insect chitinases are hydrolytic enzymes required for the degradation of chitin. They are essential for insect moulting and metamorphosis. In this study, the regulation mechanism of a chitinase gene, Bombyx mori chitinase 5 (BmCHT5), was studied. Quantitative reverse transcription PCR (qRT-PCR) analysis showed that BmCHT5 was up-regulated during the larval-larval and larval-pupa transitions and notably induced by 20-hydroxyecdysone (20E). Analysis of the BmCHT5 promoter revealed the presence of one Bombyx mori Broad-Complex Zinc-Finger Isoform 4 (BR-C Z4), two BR-C Z2 and two ecdysone-induced protein 74A (E74A) cis-regulatory elements (CREs) that are related to 20E...
December 29, 2016: Insect Molecular Biology
https://www.readbyqxmd.com/read/28002809/preclinical-evaluation-of-the-parp-inhibitor-bmn-673-for-the-treatment-of-ovarian-clear-cell-cancer
#18
Paul M Wilkerson, Konstantin J Dedes, Eleftherios Pierre Samartzis, Ioannis Dedes, Maryou B Lambros, Rachael Natrajan, Arnaud Gauthier, Salvatore Piscuoglio, Chantal Töpfer, Vesna Vukovic, Frances Daley, Britta Weigelt, Jorge S Reis-Filho
PURPOSE: To determine if models of ovarian clear cell carcinomas (OCCCs) harbouring defects in homologous recombination (HR) DNA repair of double strand breaks (DSBs) are sensitive to cisplatin and/or PARP inhibition. EXPERIMENTAL DESIGN: The HR status of 12 OCCC cell lines was determined using RAD51/γH2AX foci formation assays. Sensitivity to cisplatin and the PARP inhibitor BMN-673 was correlated with HR status. BRCA1, BRCA2, MRE11 and PTEN loss of expression was investigated as a potential determinant of BMN-673 sensitivity...
January 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/27965095/bmnhr96-participate-bv-entry-of-bmn-swu1-cells-via-affecting-the-cellular-cholesterol-level
#19
Xiao-Long Dong, Tai-Hang Liu, Wei Wang, Cai-Xia Pan, Guo-Yu Du, Yun-Fei Wu, Min-Hui Pan, Cheng Lu
B.mori nucleopolyhedrovirus (BmNPV), which produces BV and ODV two virion phenotypes in its life cycle, caused the amount of economic loss in sericulture. But the mechanism of its infection was still unclear. In this study we characterized B.mori nuclear hormone receptor 96 (BmNHR96) as a NHR96 family member, which was localized in the nucleus. We also found BmNHR96 over-expression could enhance the entry of BV as well as cellular cholesterol level. Furthermore, we validated that BmNHR96 increased membrane fusion mediated by GP64, which could probably promote BV-infection...
January 22, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27941282/donor-cell-leukemia-with-bone-marrow-necrosis
#20
Shuntaro Ikegawa, Yuho Najima, Naoki Sano, Shin-Ichiro Horiguchi, Satoshi Kaito, Shuhei Kurosawa, Masahiro Sakaguchi, Kaito Harada, Yutaro Hino, Keita Yamamoto, Yasushi Senoo, Daisuke Watanabe, Kosuke Yoshioka, Kyoko Watakabe, Aiko Igarashi, Noriko Doki, Takeshi Kobayashi, Kazuhiko Kakihana, Hisashi Sakamaki, Tsunekazu Hishima, Kazuteru Ohashi
A 60-year-old man with myelodysplastic syndrome underwent allogeneic transplantation of female umbilical cord blood in 2010 and sustained a complete remission. He experienced severe pain in his left hip joint and was admitted to the orthopedic surgery division of our institution in February 2015. After admission, he was suspected to have hemophagocytic syndrome (HPS) and was thus transferred to the hematology division. Bone marrow aspiration revealed hyper-cellular marrow filled with abnormal collapsed cells, consistent with bone marrow necrosis (BMN)...
2016: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
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