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https://www.readbyqxmd.com/read/28445987/context-dependent-mir-204-and-mir-211-affect-the-biological-properties-of-amelanotic-and-melanotic-melanoma-cells
#1
Marianna Vitiello, Andrea Tuccoli, Romina D'Aurizio, Samanta Sarti, Laura Giannecchini, Simone Lubrano, Andrea Marranci, Monica Evangelista, Silvia Peppicelli, Chiara Ippolito, Ivana Barravecchia, Elena Guzzolino, Valentina Montagnani, Michael Gowen, Elisa Mercoledi, Alberto Mercatanti, Laura Comelli, Salvatore Gurrieri, Lawrence W Wu, Omotayo Ope, Keith Flaherty, Genevieve M Boland, Marc R Hammond, Lawrence Kwong, Mario Chiariello, Barbara Stecca, Gao Zhang, Alessandra Salvetti, Debora Angeloni, Letizia Pitto, Lido Calorini, Giovanna Chiorino, Marco Pellegrini, Meenhard Herlyn, Iman Osman, Laura Poliseno
Despite increasing amounts of experimental evidence depicting the involvement of non-coding RNAs in cancer, the study of BRAFV600E-regulated genes has thus far focused mainly on protein-coding ones. Here, we identify and study the microRNAs that BRAFV600E regulates through the ERK pathway.By performing small RNA sequencing on A375 melanoma cells and a vemurafenib-resistant clone that was taken as negative control, we discover miR-204 and miR-211 as the miRNAs most induced by vemurafenib. We also demonstrate that, although belonging to the same family, these two miRNAs have distinctive features...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445507/various-mutations-compensate-for-a-deleterious-lacz%C3%AE-insert-in-the-replication-enhancer-of-m13-bacteriophage
#2
Emily M Zygiel, Karen A Noren, Marta A Adamkiewicz, Richard J Aprile, Heather K Bowditch, Christine L Carroll, Maria Abigail S Cerezo, Adelle M Dagher, Courtney R Hebert, Lauren E Hebert, Gloria M Mahame, Stephanie C Milne, Kelly M Silvestri, Sara E Sutherland, Alexandria M Sylvia, Caitlyn N Taveira, David J VanValkenburgh, Christopher J Noren, Marilena Fitzsimons Hall
M13 and other members of the Ff class of filamentous bacteriophages have been extensively employed in myriad applications. The Ph.D. series of phage-displayed peptide libraries were constructed from the M13-based vector M13KE. As a direct descendent of M13mp19, M13KE contains the lacZα insert in the intergenic region between genes IV and II, where it interrupts the replication enhancer of the (+) strand origin. Phage carrying this 816-nucleotide insert are viable, but propagate in E. coli at a reduced rate compared to wild-type M13 phage, presumably due to a replication defect caused by the insert...
2017: PloS One
https://www.readbyqxmd.com/read/28445245/ectopic-expression-of-innate-immune-protein-lipocalin-2-in-lactococcus-lactis-protects-against-gut-and-environmental-stressors
#3
Piu Saha, Benoit Chassaing, Beng San Yeoh, Emilie Viennois, Xia Xiao, Mary J Kennett, Vishal Singh, Matam Vijay-Kumar
BACKGROUND: Lipocalin-2 (Lcn2) is a multifunctional innate immune protein that exhibits antimicrobial activity by the sequestration of bacterial siderophores, regulates iron homeostasis, and augments cellular tolerance to oxidative stress. Studies in the murine model of colitis have demonstrated that Lcn2 deficiency exacerbates colitogenesis; however, the therapeutic potential of Lcn2 supplementation has yet to be elucidated. In light of its potential mucoprotective functions, we, herein, investigated whether expression of Lcn2 in the probiotic bacterium can be exploited to alleviate experimental colitis...
April 25, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28444740/chronic-lymphocytic-leukaemia-genomics-and-the-precision-medicine-era
#4
REVIEW
Hussein Ghamlouch, Florence Nguyen-Khac, Olivier A Bernard
Massive genomic analyses have underscored the diversity of chronic lymphocytic leukaemia (CLL) between patients. Genetic heterogeneity of tumour clones within a patient may fuel tumour evolution. Several recurrently deregulated intra-cellular pathways are candidates for targeted therapies that are very promising and are dramatically changing clinical patients' perspectives. In this review we present an overview of the genetic and epigenetic features of CLL and their clinical and biological implications.
April 25, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28444595/cloning-and-characterization-of-auxin-efflux-carrier-genes-ecpin1a-and-ecpin1b-from-finger-millet-eleusine-coracana-l
#5
Tapan Kumar Mohanta, Hanhong Bae
Auxin signaling events in plants play important role in developmental regulation as well as gravitropic responses and plays crucial role in the development of root, lateral root and root hairs. The gene that is known to be most important in the development of root, lateral root and root hairs is commonly known as auxin efflux carrier (PIN). Being commonly known as orphan plant, the genome sequence of Eleusine coracana is not known yet, and hence it was very difficult to conduct advanced research in root development in this plant...
May 2017: 3 Biotech
https://www.readbyqxmd.com/read/28444538/occurrence-and-genetic-diversity-analysis-of-apple-stem-pitting-virus-isolated-from-apples-in-china
#6
Guo-Jun Hu, Ya-Feng Dong, Zun-Ping Zhang, Xu-Dong Fan, Fang Ren, Zhengnan Li
Two primer pairs were used to detect apple stem pitting virus (ASPV) using a reverse transcription (RT)-PCR test. 82 out of the 141 randomly collected samples, from ten orchards in five provinces and regions of China, tested positive. In the positive samples forty-five (55%) were infected by ASPV and two other viruses. The full coat protein (CP) and the triple gene block (TGB) gene 1, 2 and 3 of partial ASPV isolates were subsequently cloned. The nucleotide and amino acid identities of 39 CP sequence variants from 31 Chinese apple samples were compared with that of previously reported ASPV isolates and were 67...
April 25, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28444537/molecular-characterization-of-a-novel-bipartite-begomovirus-isolated-from-lycianthes-biflora-in-china
#7
Y F Tang, Z F He, J K Brown, X M She, G B Lan
A bipartite begomovirus isolate GD was isolated from Lycianthes biflora plants showing yellow mosaic symptoms in Nanxiong, Guangdong Province, China. The apparently full-length DNA-A and DNA-B viral components were cloned after enrichment of circular DNA by rolling circle amplification, restriction digestion, cloning, and DNA sequencing. The DNA-A component (2752nt, KT582302) shares highest (80.2%) nucleotide (nt) sequence identity with tomato leaf curl Sulawesi virus [Indonesia-Sulawesi-Langowan F101-2006] (ToLCSuV- [ID-Sul -LanF09-06], FJ237618), reported in Indonesia as causing yellow leaf curl disease of chilli pepper...
April 25, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28444391/dual-display-phage-selection-driven-by-co-engagement-of-two-targets-by-two-different-antibody-fragments
#8
Séverine Fagète, Ledicia Botas-Perez, Irène Rossito-Borlat, Kenneth Adea, Franck Gueneau, Ulla Ravn, François Rousseau, Marie Kosco-Vilbois, Nicolas Fischer, Oliver Hartley
Antibody phage display technology has supported the emergence of numerous therapeutic antibodies. The development of bispecific antibodies, a promising new frontier in antibody therapy, could be facilitated by new phage display approaches that enable pairs of antibodies to be co-selected based on co-engagement of their respective targets. We describe such an approach, making use of two complementary leucine zipper domains that heterodimerize with high affinity. Phagemids encoding a first antibody fragment (scFv) fused to phage coat protein via the first leucine zipper are rescued in bacteria expressing a second scFv fused to the second leucine zipper as a soluble periplasmic protein, so that it is acquired by phage during assembly...
April 24, 2017: Protein Engineering, Design & Selection: PEDS
https://www.readbyqxmd.com/read/28444313/genotypic-variation-in-transpiration-efficiency-due-to-differences-in-photosynthetic-capacity-among-sugarcane-related-clones
#9
Chunjia Li, Phillip Jackson, Xin Lu, Chaohua Xu, Qing Cai, Jayapathi Basnayake, Prakash Lakshmanan, Oula Ghannoum, Yuanhong Fan
Sugarcane, derived from the hybridization of Saccharum officinarum×Saccharum spontaneum, is a vegetative crop in which the final yield is highly driven by culm biomass production. Cane yield under irrigated or rain-fed conditions could be improved by developing genotypes with leaves that have high intrinsic transpiration efficiency, TEi (CO2 assimilation/stomatal conductance), provided this is not offset by negative impacts from reduced conductance and growth rates. This study was conducted to partition genotypic variation in TEi among a sample of diverse clones from the Chinese collection of sugarcane-related germplasm into that due to variation in stomatal conductance versus that due to variation in photosynthetic capacity...
April 22, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28444294/st3268-a-geographically-widespread-primate-mrsa-clone
#10
Li-Yang Hsu, Matthew T G Holden, Tse Hsien Koh, Kerry A Pettigrew, Delphine Cao, Pei Yun Hon, Darvi M Sergio, Edgar Pena, Bryan E Ogden
No abstract text is available yet for this article.
April 21, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28444230/apoe-%C3%AE%C2%B54-%C3%AE%C2%B54-diminishes-neurotrophic-function-of-human-ipsc-derived-astrocytes
#11
Jing Zhao, Mary D Davis, Yuka Atagi, Mitsuru Shinohara, Neill R Graff-Radford, Steven G Younkin, Zbigniew K Wszolek, Takahisa Kanekiyo, Guojun Bu
The ε4 allele of the APOE gene encoding apolipoprotein E (apoE) is a strong genetic risk factor for aging-related cognitive decline as well as late-onset Alzheimer's disease (AD) compared to the common ε3 allele. In the central nervous system, apoE is produced primarily by astrocytes and functions in transporting lipids including cholesterol to support neuronal homeostasis and synaptic integrity. Although mouse models and corresponding primary cells have provided valuable tools for studying apoE isoform-dependent functions, recent studies have shown that human astrocytes have distinct gene expression profile compare with rodent astrocytes...
April 21, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28443628/intestinal-microbiota-link-lymphopenia-to-murine-autoimmunity-via-pd-1-cxcr5-dim-b-helper-t-cell-induction
#12
Toshiki Eri, Kimito Kawahata, Takeyuki Kanzaki, Mitsuru Imamura, Kazuya Michishita, Lisa Akahira, Ei Bannai, Noritada Yoshikawa, Yasumasa Kimura, Takeshi Satoh, Satoshi Uematsu, Hirotoshi Tanaka, Kazuhiko Yamamoto
T cell lymphopenia results in peripheral homeostatic expansion to maintain the T cell immune system, which is termed lymphopenia-induced proliferation (LIP). LIP is a potential risk for expanding autoreactive clones to become pathogenic in human and murine autoimmune diseases. However, the ontogeny of T cells that induce autoantibody production by autoreactive B cells in LIP remains unclear. Transfer of CD4(+)CD25(-) conventional T (Tc) cells into T-cell-deficient athymic nude mice has been previously reported as a LIP-induced autoimmune model which develops organ-specific autoimmune diseases and systemic antinuclear antibodies (ANAs)...
April 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28443471/suppressing-the-molecular-signaling-pathways-involved-in-inflammation-and-cancer-in-breast-cancer-cell-lines-mda-mb-231-and-mcf-7-by-mir-590
#13
Azar Sheikholeslami, Mohammad Nabiuni, Ehsan Arefian
Breast cancer is the most frequent cancer among women worldwide. Tumor immunology suggests relationships between the immune system, chronic inflammation, and cancer. The immune system may either prevent or promote carcinogenesis. Here, we evaluated molecular signaling pathways common in inflammation and cancer and detected the microRNAs which play pivotal roles in mediating these pathways. Using bioinformatics assays, signaling pathways common in inflammation and cancer, and microRNAs mediating these pathways were identified...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28443126/genome-wide-identification-characterization-and-expression-analysis-of-pht1-phosphate-transporters-in-wheat
#14
Wan Teng, Yan-Yan Zhao, Xue-Qiang Zhao, Xue He, Wen-Ying Ma, Yan Deng, Xin-Ping Chen, Yi-Ping Tong
The PHT1 family of phosphate (Pi) transporters mediates phosphorus (P) uptake and re-mobilization in plants. A genome-wide sequence analysis of PHT1 genes in wheat (Triticum aestivum) was conducted, and their expression locations and responses to P availability were further investigated. We cloned 21 TaPHT1 genes from the homologous alleles at TaPHT1.1 to 1.10 through screening a BAC library and amplifying genomic sequences. The TaPHT1 transporters were clustered into five branches in the phylogenetic tree of PHT1 proteins, and the TaPHT1 genes from a given branch shared high similarities in sequences, expression locations, and responses to P availability...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28443124/fine-mapping-of-a-resistance-gene-rpshn-that-controls-phytophthora-sojae-using-recombinant-inbred-lines-and-secondary-populations
#15
Jingping Niu, Na Guo, Jutao Sun, Lihong Li, Yongce Cao, Shuguang Li, Jianli Huang, Jinming Zhao, Tuanjie Zhao, Han Xing
Phytophthora root rot (PRR), caused by Phytophthora sojae, has negative effects on soybean yield in China and can be controlled by identifying germplasm resources with resistance genes. In this study, the resistance locus RpsHN in the soybean line Meng8206 was mapped using two mapping populations. Initial mapping was realized using two recombinant inbred line (RIL) populations and included 103 F6:8 RILs derived from a cross of Meng8206 × Linhedafenqing, including 2600 bin markers, and 130 F6:8 RILs derived from a cross of Meng8206 × Zhengyang148, including 2267 bin markers...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28443106/over-expression-of-ejlfy-1-leads-to-an-early-flowering-habit-in-strawberry-fragaria-%C3%A3-ananassa-and-its-asexual-progeny
#16
Yuexue Liu, Qian Zhao, Nan Meng, Huwei Song, Chaochao Li, Guibing Hu, Jincheng Wu, Shunquan Lin, Zhihong Zhang
As a master regulator involved in flower development, LEAFY-like gene has been demonstrated to play a key role in the flowering process regulation of angiosperms. Expression analysis of EjLFY-1, a LEAFY (LFY) homolog of loquat (Eriobotrya japonica Lindl.), indicated its participation in the regulation of flowering in loquat. To verify its function and potential value in the genetic engineering to shorten the juvenile phase, ectopic expression of EjLFY-1 in strawberry (Fragaria × ananassa) was achieved using Agrobacterium-mediated gene transfer of a plant expression vector with the loquat EjLFY-1 gene driven by the CaMV 35S promoter...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28443063/on-the-molecular-evolution-of-leptin-leptin-receptor-and-endospanin
#17
Richard Lyle Londraville, Jeremy W Prokop, Robert Joel Duff, Qin Liu, Matthew Tuttle
Over a decade passed between Friedman's discovery of the mammalian leptin gene (1) and its cloning in fish (2) and amphibians (3). Since 2005, the concept of gene synteny conservation (vs. gene sequence homology) was instrumental in identifying leptin genes in dozens of species, and we now have leptin genes from all major classes of vertebrates. This database of LEP (leptin), LEPR (leptin receptor), and LEPROT (endospanin) genes has allowed protein structure modeling, stoichiometry predictions, and even functional predictions of leptin function for most vertebrate classes...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28442418/tlr22-structure-and-expression-characteristic-of-barbel-chub-squaliobarbus-curriculus-provides-insights-into-antiviral-immunity-against-infection-with-grass-carp-reovirus
#18
Rong-Hua Wang, Wei Li, Yu-Ding Fan, Qiao-Lin Liu, Ling-Bing Zeng, Tiao-Yi Xiao
Grass carp reovirus (GCRV) is the most virulent agent to Grass carp, Ctenopharyngodon idella, and causes a severe infectious disease called hemorrhagic disease of grass carp. Generally, barbel chub, Squaliobarbus curriculus, a genetically closely related species to grass carp, exhibits significant resistance against GCRV infection compared to grass carp. To investigate whether the Toll-like receptor 22 (tlr22) has got a vital role against the GCRV infection, the full cDNA sequence of tlr22 from barbel chub (Sctlr22) was cloned by RACE-PCR, and the structure and expression feature were studied...
April 22, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28442417/cloning-expression-analysis-and-antibacterial-propertiesof-three-serum-amyloid-a-in-common-carp-cyprinus-carpio
#19
Juhua Yu, Yongkai Tang, Jianlin Li, Hongxia Li, Fan Yu, Wenjuan Yu, Feng He, Chunjie Fu, Shuntao Mao
Three serum amyloid A (SAA) genes were identified from the common carp (Cyprinus carpio) by PCR and RT-PCR. Considering both direction and sequence similarity with mammal's orthologs, they were named CcSAA3a, CcSAA3b and CcSAA1. CcSAA3b and CcSAA1 are adjacent on contig LHQP01017858, suggesting that the prototype of or the simplest SAA multigene family have occurred in common carp. A phylogenetic analysis of the SAAs indicated that the fish SAAs were closer to those of invertebrates and Ornithorhynchus anatinus, a primitive mammal, than to mammalian SAAs...
April 23, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28442416/molecular-characterization-and-expression-of-interleukin-10-and-interleukin-22-in-golden-pompano-trachinotus-ovatus-in-response-to-streptococcus-agalactiae-stimulus
#20
Yinhui Peng, Xiaohui Cai, Guoyin Zhang, Junlin Wang, Yuan Li, Zhiwen Wang, Bei Wang, Xiangying Xiong, Zaohe Wu, Jichang Jian
In the present study, members of the interleukin (IL)-10 family of cytokines, including IL-10 (TOIL-10) and IL-22 (TOIL-22) of golden pompano (Trachinotus ovatus), were cloned for the first time, and their expression patterns and 3D structures analyzed. The full-length cDNA sequences of TOIL-10 and TOIL-22 contained open reading frames of 564 and 567 bp, respectively. TOIL-10 and TOIL-22 shared higher homology (78%-89%) with the corresponding genes from various fish relative to other species (25%-34%) and contained the IL-10 family signature and four cysteine residues that are well conserved in other vertebrate IL-10 members...
April 22, 2017: Fish & Shellfish Immunology
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