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https://www.readbyqxmd.com/read/29691845/establishment-of-a-new-fish-cell-line-from-the-caudal-fin-of-golden-pompano-trachinotus-ovatus-and-its-susceptibility-to-iridovirus
#1
S Wei, Y Yu, Q Qin
A new cell line derived from the caudal fin of golden pompano Trachinotus ovatus (TOCF) was successfully established and characterized. TOCF cells grew well at 28° C in L-15 medium supplemented with 10% foetal bovine serum (FBS). The cell line has been subcultured in more than 100 passages. Molecular characterization of 18S ribosomal (r)RNA and cytochrome oxidase subunit 1 (COI) confirmed that the TOCF cells were derived indeed from T. ovatus. TOCF cells have a modal chromosome number of 54. It was further showed that TOCF cells were transfected successfully with pEGFP-N3 and pDsRED-N1 plasmid, suggesting that TOCF cells could be used to research gene functions in vitro...
April 24, 2018: Journal of Fish Biology
https://www.readbyqxmd.com/read/29691581/-upregulation-of-mir-498-suppresses-th17-cell-differentiation-by-targeting-stat3-in-rheumatoid-arthritis-patients
#2
Hai-Yan Xiang, Feng Pan, Ju-Zhen Yan, Li-Quan Hong, La-Hong Zhang, Yu-Hua Liu, Xiao Feng, Cheng-Song Cai
To investigate the effect and mechanism of miR-498 on Th17 cell differentiation of peripheral blood mononuclear cells (PMBCs) in rheumatoid arthritis (RA) patients, peripheral blood samples were collected from RA patients and healthy controls, respectively. The proportion of CD4+ IL-17+ T cells (Th17 cells) or CD4+ FOXP3+ T cells (Tregs) in T cells and the Th17/Treg ratio were identified by the flow cytometer. The STAT3 and miR-498 expression were measured by Western blot and real-time PCR, respectively. ELISA was used to detect IL-17 concentrations...
April 25, 2018: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/29691553/-klf10-silencing-inhibited-mechanical-force-induced-osteogenic-differentiation-of-human-periodontal-ligament-cells
#3
Xiao-Qin Yu, Yun-Long Li, Jin-Yu Gao, Hua Liu
PURPOSE: To investigate the effect of Klf10 silence on human periodontal ligament cells (HPDLCs) under mechanical force. METHODS: HPDLCs were isolated and transfected with Klf10 siRNA, and then exposed to centrifugal force for 6 h at 631 r/min. Purmorphamine, an hedgehog signaling pathway agonist, was used for intervention. The activity of alkaline phosphatase (ALP) was detected by ELISA. RT-PCR and Western blot were performed to detect the mRNA and protein expression of Klf10, Runt related transcription factor 2 (Runx2), osteopontin (OPN) and osteocalcin (OCN)...
December 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/29691127/digenic-heterozigosity-in-scn5a-and-cacna1c-explains-the-variable-expressivity-of-the-long-qt-phenotype-in-a-spanish-family
#4
Paloma Nieto-Marín, Juan Jiménez-Jáimez, David Tinaquero, Silvia Alfayate, Raquel G Utrilla, María Del Mar Rodríguez Vázquez Del Rey, Francesca Perin, Geòrgia Sarquella-Brugada, Lorenzo Monserrat, Josep Brugada, Luis Tercedor, Juan Tamargo, Eva Delpón, Ricardo Caballero
INTRODUCTION AND OBJECTIVES: A known long QT syndrome-related mutation in Nav1.5 cardiac channels (p.R1644H) was found in 4 members of a Spanish family but only 1 of them showed prolongation of the QT interval. In the other 3 relatives, a novel missense mutation in Cav1.2 cardiac channels was found (p.S1961N). Here, we functionally analyzed p.S1961N Cav1.2 channels to elucidate whether this mutation regulates the expressivity of the long QT syndrome phenotype in this family. METHODS: L-type calcium current (ICaL ) recordings were performed by using the whole-cell patch-clamp technique in Chinese hamster ovary cells transiently transfected with native and/or p...
April 21, 2018: Revista Española de Cardiología
https://www.readbyqxmd.com/read/29690954/mir-150-suppresses-tumor-growth-in-melanoma-through-downregulation-of-myb
#5
Xiyan Sun, Chao Zhang, Yang Cao, Erbiao Liu
MiR-150 has been demonstrated to inhibit tumor progression in various human cancers, including colorectal cancer, ovarian cancer and thyroid cancer. However, the role of miR-150 in melanoma remains to be determined. In this study, we found that miR-150 was underexpressed in melanoma tissues and cell lines. Through transfection of miR-150 mimics, we found that miR-150 significantly inhibited the proliferation, migration and invasion of melanoma cells. In mechanism, we found that MYB was a target of miR-150 in melanoma cells...
April 24, 2018: Oncology Research
https://www.readbyqxmd.com/read/29690804/expression-of-macrophage-migration-inhibitory-factor-in-footpad-skin-lesions-with-diabetic-neuropathy
#6
Sun Up Noh, Won-Young Lee, Won-Serk Kim, Yong-Taek Lee, Kyung Jae Yoon
Background Diabetic neuropathy (DN) originating in distal lower extremities is associated with pain early in the disease course, overwhelming in the feet. However, the pathogenesis of DN remains unclear. Macrophage migration inhibitory factor (MIF) has been implicated in the onset of neuropathic pain and the development of diabetes. Objective of this study was to observe pain syndromes elicited in the footpad of DN rat model and to assess the contributory role of MIF in the pathogenesis of DN. Methods DN was made in SD rats by streptozotocin (STZ)...
January 1, 2018: Molecular Pain
https://www.readbyqxmd.com/read/29690734/-effect-of-dishevelled-2-on-apoptosis-in-rheumatoid-arthritis-fibroblast-like-synoviocytes-through-inhibiting-jak-stat-pathway
#7
X Z Liu, Y Gao, C H Zhu, K Qi, X Xu, D B Zhao
Objective: To investigate if Dishevelled 2 (DVL2) regulates the apoptosis of rheumatoid arthritis fibroblast-like synoviocytes (RA-FLS) via the JAK-STAT pathway. Methods: DVL2 overexpressed lentivirus was transfected into RA-FLS and the apoptosis rate was detected by flow cytometry. The effect of DVL2 on RA-FLS signaling pathway was detected by RNA-seq, and then the key genes were verified by RT-PCR. Results: Compared with the control group, DVL2 significantly increased the apoptosis rate of MH7A (3.2%±2.2% vs 25...
April 17, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29690642/autophagic-removal-of-farnesylated-carboxy-terminal-lamin-peptides
#8
Xiang Lu, Karima Djabali
The mammalian nuclear lamina proteins—prelamin A- and B-type lamins—are post-translationally modified by farnesylation, endoproteolysis, and carboxymethylation at a carboxy-terminal CAAX (C, cysteine; a, aliphatic amino acid; X, any amino acid) motif. However, prelamin A processing into mature lamin A is a unique process because it results in the production of farnesylated and carboxymethylated peptides. In cells from patients with Hutchinson⁻Gilford progeria syndrome, the mutant prelamin A protein, progerin, cannot release its prenylated carboxyl-terminal moiety and therefore remains permanently associated with the nuclear envelope (NE), causing severe nuclear alterations and a dysmorphic morphology...
April 23, 2018: Cells
https://www.readbyqxmd.com/read/29690568/mycoviruses-as-triggers-and-targets-of-rna-silencing-in-white-mold-fungus-sclerotinia-sclerotiorum
#9
Pauline Mochama, Prajakta Jadhav, Achal Neupane, Shin-Yi Lee Marzano
This study aimed to demonstrate the existence of antiviral RNA silencing mechanisms in Sclerotinia sclerotiorum by infecting wild-type and RNA-silencing-deficient strains of the fungus with an RNA virus and a DNA virus. Key silencing-related genes were disrupted to dissect the RNA silencing pathway. Specifically, dicer genes ( dcl-1, dcl-2 , and both dcl-1 / dcl-2 ) were displaced by selective marker(s). Disruption mutants were then compared for changes in phenotype, virulence, and susceptibility to virus infections...
April 22, 2018: Viruses
https://www.readbyqxmd.com/read/29689569/microrna-223-regulates-cardiac-fibrosis-after-myocardial-infarction-by-targeting-rasa1
#10
Xiaoxiao Liu, Yifeng Xu, Yunfei Deng, Hongli Li
BACKGROUND/AIMS: Percutaneous coronary intervention reduces acute myocardial infarction (MI)-induced mortality to a great extent, but effective treatments for MI-induced cardiac fibrosis and heart failure are still lacking. MicroRNAs (miRNAs) play a variety of roles in cells and have thus been investigated extensively. MicroRNA-223 (miR-223) expression has been reported to be altered in post-MI heart failure in humans; however, the roles of miR-223 in MI remain unknown. Our study aimed to elucidate the roles of miR-223 in cardiac fibrosis...
April 19, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29689560/oxidative-stress-induces-neuronal-apoptosis-through-suppressing-transcription-factor-eb-phosphorylation-at-ser467
#11
Qian Su, Bin Zheng, Chen-Yao Wang, Yun-Zhi Yang, Wen-Wen Luo, Shu-Min Ma, Xin-Hua Zhang, Dong Ma, Yan Sun, Zhan Yang, Jin-Kun Wen, Zhi-Xue Liu
BACKGROUND/AIMS: This study determined the role and mechanism of action of transcription factor EB (TFEB) in H2O2-induced neuronal apoptosis. METHODS: SH-SY5Y cells were treated with Akt inhibitor/activator and different concentrations of H2O2. Cell apoptosis was detected by flow cytometric analysis. Akt and TFEB phosphorylation and PARP cleavage were determined by Western blotting. HEK293T cells were transfected with different truncated TFEB mutants and HA-Akt-WT; SH-SY5Y cells were transfected with Flag-vector, Flag-TFEB, Flag-TFEB-S467A or Flag-TFEB-S467D; and TFEB interaction with Akt was determined by co-immunoprecipitation and GST pull-down assays...
April 19, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29689549/cardiomyocyte-derived-mir-328-promotes-cardiac-fibrosis-by-paracrinely-regulating-adjacent-fibroblasts
#12
Dandan Zhao, Cui Li, He Yan, Tianyu Li, Ming Qian, Nan Zheng, Hua Jiang, Li Liu, Bozhi Xu, Qiuxia Wu, Xuelian Li, Haihai Liang, Hongli Shan
BACKGROUND/AIMS: In our previous study, we demonstrated that elevated expression of miR-328 is a potent determinant of cardiac fibrosis during myocardial infarction (MI). In the present study, histological examination revealed progressive fibrosis in transgenic mice overexpressing cardiomyocyte-specific miR-328. This study investigated whether the transfer of miR-328 from cardiomyocytes (CMs) to cardiac fibroblasts (CFs) in a paracrine manner contributes to myocardial fibrosis. METHODS: Myocardial infarction was established by the occlusion of the left coronary artery...
April 19, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29689547/sirt3-facilitates-amniotic-fluid-stem-cells-to-repair-diabetic-nephropathy-through-protecting-mitochondrial-homeostasis-by-modulation-of-mitophagy
#13
Jianxun Feng, Chang Lu, Qin Dai, Junqin Sheng, Min Xu
BACKGROUND/AIMS: Amniotic fluid stem cells (AFSCs) transplantation is a promising therapeutic strategy for diabetic nephropathy. Sirtuin3 (SIRT3) is a novel mitochondrial protective factor. In the present study, we aimed to investigate whether SIRT3 protects against hyperglycemia-induced AFSCs damage and enhances the therapeutic efficiency of AFSCs in diabetic nephropathy. METHODS: To establish the diabetic nephropathy model, db/ db mice were used. AFSCs were obtained and transplanted into the kidney tissue of db/ db mice...
April 19, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29689531/genomic-and-transcriptomic-alterations-in-leishmania-donovani-lines-experimentally-resistant-to-antileishmanial-drugs
#14
Alberto Rastrojo, Raquel García-Hernández, Paola Vargas, Esther Camacho, Laura Corvo, Hideo Imamura, Jean-Claude Dujardin, Santiago Castanys, Begoña Aguado, Francisco Gamarro, Jose M Requena
Leishmaniasis is a serious medical issue in many countries around the World, but it remains largely neglected in terms of research investment for developing new control and treatment measures. No vaccines exist for human use, and the chemotherapeutic agents currently used are scanty. Furthermore, for some drugs, resistance and treatment failure are increasing to alarming levels. The aim of this work was to identify genomic and trancriptomic alterations associated with experimental resistance against the common drugs used against VL: trivalent antimony (SbIII , S line), amphotericin B (AmB, A line), miltefosine (MIL, M line) and paromomycin (PMM, P line)...
April 13, 2018: International Journal for Parasitology, Drugs and Drug Resistance
https://www.readbyqxmd.com/read/29689167/tailoring-the-supramolecular-structure-of-guanidinylated-pullulan-toward-enhanced-genetic-photodynamic-therapy
#15
Jie Zhou, Aisha Roshan Mohamed Wali, Shengnan Ma, Yiyan He, Dong Yue, James Zhenggui Tang, Zhongwei Gu
In the progress of designing a gene carrier system, what is urgently needed is a balance of excellent safety and satisfactory efficiency. Herein, a straightforward and versatile synthesis of a cationic guanidine-decorated dendronized pullulan (OGG3P) for efficient genetic photodynamic therapy was proposed. OGG3P was able to block the mobility of DNA from a weight ratio of 2. However, G3P lacking guanidine residues could not block DNA migration until at a weight ratio of 15, revealing guanidination could facilitate DNA condensation via specific guanidinium-phosphate interactions...
April 24, 2018: Biomacromolecules
https://www.readbyqxmd.com/read/29689091/higher-expression-of-mir-133b-is-associated-with-better-efficacy-of-erlotinib-as-the-second-or-third-line-in-non-small-cell-lung-cancer-patients
#16
Alessandra Bisagni, Maria Pagano, Sally Maramotti, Francesca Zanelli, Martina Bonacini, Elena Tagliavini, Luca Braglia, Massimiliano Paci, Andrea Mozzarelli, Stefania Croci
Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (gefitinib, erlotinib and afatinib) are indicated as first-line therapy in patients with non-small cell lung cancer (NSCLC) whose tumors harbor activating mutations in the EGFR gene. Erlotinib is also used in second and third-line therapy for patients whose tumors have wild type EGFR but to date there are no validated biomarkers useful to identify which patients may benefit from this treatment. The expression level of four miRNAs: miR-133b, -146a, -7 and -21 which target EGFR was investigated by real-time PCR in tumor specimens from NSCLC patients treated with erlotinib administered as the second or third line...
2018: PloS One
https://www.readbyqxmd.com/read/29689087/identification-of-rna-binding-proteins-in-exosomes-capable-of-interacting-with-different-types-of-rna-rbp-facilitated-transport-of-rnas-into-exosomes
#17
Luisa Statello, Marco Maugeri, Elena Garre, Muhammad Nawaz, Jessica Wahlgren, Alexandros Papadimitriou, Christina Lundqvist, Lennart Lindfors, Anna Collén, Per Sunnerhagen, Marco Ragusa, Michele Purrello, Cinzia Di Pietro, Natalie Tigue, Hadi Valadi
The RNA that is packaged into exosomes is termed as exosomal-shuttle RNA (esRNA); however, the players, which take this subset of RNA (esRNA) into exosomes, remain largely unknown. We hypothesized that RNA binding proteins (RBPs) could serve as key players in this mechanism, by making complexes with RNAs and transporting them into exosomes during the biosynthesis of exosomes. Here, we demonstrate the presence of 30 RBPs in exosomes that were shown to form RNA-RBP complexes with both cellular RNA and exosomal-RNA species...
2018: PloS One
https://www.readbyqxmd.com/read/29688780/hyaluronic-acid-synthase-2-gene-transfer-into-the-joints-of-beagles-by-use-of-recombinant-adeno-associated-viral-vectors
#18
Sirkka Kyostio-Moore, Patricia Berthelette, Cathleen Sookdeo Cornell, Bindu Nambiar, Monica Dias Figueiredo
OBJECTIVE To evaluate gene transfer of recombinant adeno-associated viral (rAAV) vectors with AAV2 or AAV5 capsid and encoding hyaluronic acid (HA) synthase-2 (HAS2) into joints of healthy dogs. ANIMALS 22 purpose-bred Beagles. PROCEDURES Plasmid expression cassettes encoding canine HAS2 (cHAS2) were assessed in vitro for concentration and molecular size of secreted HA. Thereafter, rAAV2-cHAS2 vectors at 3 concentrations and rAAV5-cHAS2 vectors at 1 concentration were each administered intra-articularly into the left stifle joint of 5 dogs; 2 dogs received PBS solution instead...
May 2018: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/29688519/a-possible-novel-mechanism-of-action-of-genistein-and-daidzein-for-activating-thyroid-hormone-receptor-tr-mediated-transcription
#19
Winda Ariyani, Toshiharu Iwasaki, Wataru Miyazaki, Yu Lu, Shigeki Takeda, Noriyuki Koibuchi
Thyroid hormone receptors (TRs) are members of the nuclear receptor superfamily that regulate their target genes for controlling organ development and functional maintenance. Soybean isoflavones, especially genistein and daidzein, modulate various hormone-mediated pathways. However, their effects on TRs have not yet been extensively studied. In this study, the effects of these isoflavones on TR action were evaluated using transient transfection-based reporter gene assays and molecular docking studies. Genistein and daidzein augmented T3-liganded TR-mediated transcription in a concentration-dependent manner...
April 23, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29688330/novel-thioglycoside-analogs-of-%C3%AE-galactosylceramide-stimulate-cytotoxicity-and-preferential-th1-cytokine-production-by-human-invariant-natural-killer-t-cells
#20
Ashanty M Melo, Lei Zhang, Éilis F Dockry, Andreea Petrasca, Yasmeen G Ghnewa, Eamon P Breen, Maria E Morrissey, Ciara O'Reilly, Robyn Bruen, Andrew O'Meara, Joanne Lysaght, Xiangming Zhu, Derek G Doherty
Invariant natural killer T (iNKT) cells recognize glycolipid antigens bound to CD1d molecules on antigen-presenting cells. Therapeutic activation of iNKT cells with the xenogeneic glycolipid α-galactosylceramide (α-GalCer) can prevent and reverse tumor growth in murine models, but clinical trials using α-GalCer-stimulated human iNKT cells have shown limited efficacy. We synthesized a series of thioglycoside analogs of α-GalCer with different substituents to the galactose residue and found that two of these compounds, XZ7 and XZ11, bound to CD1d-transfected HeLa cells and activated lines of expanded human iNKT cells...
April 6, 2018: Glycobiology
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