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Molecular profiling

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https://www.readbyqxmd.com/read/28636152/dynamics-and-origin-of-cytokinins-involved-in-plant-manipulation-by-a-leaf-mining-insect
#1
Hui Zhang, Antoine Guiguet, Géraldine Dubreuil, Anna Kisiala, Peter Andreas, R J Neil Emery, Elisabeth Huguet, Mélanie Body, David Giron
Several herbivorous insects and plant-associated microorganisms control the phytohormonal balance, thus enabling them to successfully exploit the plant by inhibiting plant defences and withdrawing plant resources for their own benefit. The leaf-mining moth Phyllonorycter blancardella modifies the cytokinin (CK) profile of mined leaf-tissues, and the insect symbiotic bacteria Wolbachia is involved in the plant manipulation to the benefit of the insect host. To gain a deeper understanding into the possible origin and dynamics of CKs, we conducted an extensive characterization of CKs in larvae and in infected apple leaves...
June 21, 2017: Insect Science
https://www.readbyqxmd.com/read/28635632/glucose-and-lipid-dysmetabolism-in-a-rat-model-of-prediabetes-induced-by-a-high-sucrose-diet
#2
Ana Burgeiro, Manuela G Cerqueira, Bárbara M Varela-Rodríguez, Sara Nunes, Paula Neto, Frederico C Pereira, Flávio Reis, Eugénia Carvalho
Glucotoxicity and lipotoxicity are key features of type 2 diabetes mellitus, but their molecular nature during the early stages of the disease remains to be elucidated. We aimed to characterize glucose and lipid metabolism in insulin-target organs (liver, skeletal muscle, and white adipose tissue) in a rat model treated with a high-sucrose (HSu) diet. Two groups of 16-week-old male Wistar rats underwent a 9-week protocol: HSu diet (n = 10)-received 35% of sucrose in drinking water; Control (n = 12)-received vehicle (water)...
June 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28635594/translation-repression-via-modulation-of-the-cytoplasmic-poly-a-binding-protein-in-the-inflammatory-response
#3
Xu Zhang, Xiaoli Chen, Qiuying Liu, Shaojie Zhang, Wenqian Hu
Gene expression is precisely regulated during the inflammatory response to control infection and limit the detrimental effects of inflammation. Here, we profiled global mRNA translation dynamics in the mouse primary macrophage-mediated inflammatory response and identified hundreds of differentially translated mRNAs. These mRNAs' 3'UTRs have enriched binding motifs for several RNA-binding proteins, which implies extensive translational regulatory networks. We characterized one such protein, Zfp36, as a translation repressor...
June 21, 2017: ELife
https://www.readbyqxmd.com/read/28635333/molecular-biomarkers-to-guide-precision-medicine-in-localized-prostate-cancer
#4
Minke Smits, Niven Mehra, Michiel Sedelaar, Winald Gerritsen, Jack A Schalken
Major advances through tumor profiling technologies, that include next-generation sequencing, epigenetic, proteomic and transcriptomic methods, have been made in primary prostate cancer, providing novel biomarkers that may guide precision medicine in the near future. Areas covered: The authors provided an overview of novel molecular biomarkers in tissue, blood and urine that may be used as clinical tools to assess prognosis, improve selection criteria for active surveillance programs, and detect disease relapse early in localized prostate cancer...
June 21, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/28634732/engineering-poly-lactic-co-glycolic-acid-plga-micro-and-nano-carriers-for-controlled-delivery-of-17%C3%AE-estradiol
#5
Alesia V Prakapenka, Heather A Bimonte-Nelson, Rachael W Sirianni
With menopause, circulating levels of 17β-estradiol (E2) markedly decrease. E2-based hormone therapy is prescribed to alleviate symptoms associated with menopause. E2 is also recognized for its beneficial effects in the central nervous system (CNS), such as enhanced cognitive function following abrupt hormonal loss associated with ovariectomy. For women with an intact uterus, an opposing progestogen component is required to decrease the risk of developing endometrial hyperplasia. While adding an opposing progestogen attenuates these detrimental effects on the uterus, it can attenuate the beneficial effects of E2 in the CNS...
June 20, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28634597/molecular-characterization-of-salmonella-from-human-and-animal-origins-in-uganda
#6
Atek Atwiine Kagirita, Andrew Baguma, Tonny Jimmy Owalla, Joel Bazira, Samuel Majalija
Sporadic Salmonella outbreaks with varying clinical presentations have been on the rise in various parts of Uganda. The sources of outbreaks and factors underlying the different clinical manifestation are curtailed by paucity of information on Salmonella genotypes and the associated virulence genes. This study reports molecular diversity of Salmonella enterica and their genetic virulence profiles among human and animal isolates. Characterization was done using Kauffman-White classification scheme and virulence genes analysis using multiplex PCR...
2017: International Journal of Bacteriology
https://www.readbyqxmd.com/read/28634482/whole-plant-temperature-manipulation-affects-flavonoid-metabolism-and-the-transcriptome-of-grapevine-berries
#7
Chiara Pastore, Silvia Dal Santo, Sara Zenoni, Nushin Movahed, Gianluca Allegro, Gabriele Valentini, Ilaria Filippetti, Giovanni Battista Tornielli
Among environmental factors, temperature is the one that poses serious threats to viticulture in the present and future scenarios of global climate change. In this work, we evaluated the effects on berry ripening of two thermal regimes, imposed from veraison to harvest. Potted vines were grown in two air-conditioned greenhouses with High Temperature (HT) and Low Temperature (LT) regimes characterized by 26 and 21°C as average and 42 and 35°C as maximum air daily temperature, respectively. We conducted analyses of the main berry compositional parameters, berry skin flavonoids and berry skin transcriptome on HT and LT berries sampled during ripening...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28634138/intracellular-and-transdermal-protein-delivery-mediated-by-non-covalent-interactions-with-a-synthetic-guanidine-rich-molecular-carrier
#8
Jungkyun Im, Sanket Das, Dongjun Jeong, Chang-Jin Kim, Hyun-Suk Lim, Ki Hean Kim, Sung-Kee Chung
The impermeability of the cell plasma membrane is one of the major barriers for protein transduction into mammalian cells, and it also limits the use of proteins as therapeutic agents. Protein transduction has usually been achieved based on certain invasive processes or cell penetrating peptides (CPP). Herein we report our study in which a synthetic guanidine-rich molecular carrier is used as a delivery vector for intracellular and transdermal delivery of proteins. First a sorbitol-based molecular carrier having 8 guanidine units (Sor-G8) was synthesized, and then was simply mixed with a cargo protein of varying sizes to form the non-covalent complex of carrier-cargo proteins...
June 17, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28634081/quantitative-proteomic-reveals-the-dynamic-of-protein-profile-during-zebrafish-final-oocyte-maturation
#9
Chunmei Ge, Weiqun Lu, Aqin Chen
The molecular mechanisms underlying final oocyte maturation zebrafish (Danio rerio) remain poorly understood. The present study aimed to employ iTRAQ approach for a comprehensive characterization of during zebrafish oocyte maturation proteome and for comparison between fully-grow immature and mature oocytes prior to ovulation. A total of 1568 proteins were identified, which was representing the largest zebrafish isolated oocytes proteome dataset to date. Differential expression analysis revealed 190 proteins significantly changes between immature and mature oocytes, which 136 proteins were up-regulated and 54 proteins were down-regulated in mature oocytes comparison with immature oocytes...
June 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28634007/gene-expression-differences-between-ductal-carcinoma-in-situ-with-and-without-progression-to-invasive-breast-cancer
#10
Shusma C Doebar, Anieta M Sieuwerts, Vanja de Weerd, Hans Stoop, John W M Martens, Carolien H M van Deurzen
To understand the molecular alterations driving the progression of ductal carcinoma in situ (DCIS), we compared patients with pure DCIS and patients with DCIS and synchronous invasive breast cancer (IBC). Twelve patients with extensive pure DCIS were included as a representation of indolent lesions with limited invasive capacity. These cases were matched with 12 patients with a limited DCIS component and IBC, representing lesions with a high invasive potential. Matching included age and surrogate DCIS subtypes...
July 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28633965/phosphoproteome-analysis-reveals-a-critical-role-for-hedgehog-signalling-in-osteoblast-morphological-transitions
#11
Ariane Marumoto, Renato Milani, Rodrigo A da Silva, Célio Junior da Costa Fernandes, José Mauro Granjeiro, Carmen V Ferreira, Maikel P Peppelenbosch, Willian F Zambuzzi
The reciprocal and adaptive interactions between cells and substrates governing morphological transitions in the osteoblast compartment remain largely obscure. Here we show that osteoblast cultured in basement membrane matrix (Matrigel™) exhibits significant morphological changes after ten days of culture, and we decided to exploit this situation to investigate the molecular mechanisms responsible for guiding osteoblast morphological transitions. As almost all aspects of cellular physiology are under control of kinases, we generated more or less comprehensive cellular kinome profiles employing PepChip peptide arrays that contain over 1000 consensus substrates of kinase peptide...
June 17, 2017: Bone
https://www.readbyqxmd.com/read/28633944/gene-expression-analysis-identify-a-metabolic-and-cell-function-alterations-as-a-hallmark-of-obesity-without-metabolic-syndrome-in-peripheral-blood-a-pilot-study
#12
Daniel Antonio de Luis, Raquel Almansa, Rocío Aller, Olatz Izaola, E Romero
BACKGROUND: Understanding molecular basis involved in overweight is an important first step in developing therapeutic pathways against excess in body weight gain. OBJECTIVE: The purpose of our pilot study was to evaluate the gene expression profiles in the peripheral blood of obese patients without other metabolic complications. DESIGN: A sample of 17 obese patients without metabolic syndrome and 15 non obese control subjects was evaluated in a prospective way...
June 10, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28633930/phospholipase-a2-in-the-venom-of-three-cottonmouth-snake-species
#13
Ying Jia, Boris Ermolinsky, Aryana Garza, Daniele Provenzano
Two phospholipase A2s (PLA2s), Asp49 (D49) and Lys49 (K49), were purified by one-step reverse-phase high performance liquid chromatography (RP-HPLC) from the venom of each of the three subspecies of cottonmouth snake, Western cottonmouth (Agkistrodon piscivorus leucostoma; Apl), Eastern cottonmouth (Agkistrodon piscivorus piscivorus; App) and Florida cottonmouth (Agkistrodon piscivorus conanti; Apc). Venom protein profiles and PLA2s elution pattern of the three cottonmouth snakes were remarkably similar displaying four similar sharp and two wide peaks; in all cases K49 PLA2 eluted first followed by D49 PLA2...
June 17, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28633877/epithelial-proteome-profiling-suggests-essential-role-of-interferon-inducible-proteins-in-allergic-rhinitis
#14
Joseph Ndika, Liisa Airaksinen, Hille Suojalehto, Piia Karisola, Nanna Fyhrquist, Anne Puustinen, Harri Alenius
BACKGROUND: Seasonal allergic rhinitis (SAR) as a result of intermittent exposure to seasonal pollen, causes itching, nasal congestion and repeated sneezing, with profound effects on the quality of life, work productivity and school performance. While both the genotype and environmental factors may contribute to the immunological basis of allergic reactions, the molecular underpinnings associated with the pathogenesis of allergic rhinitis are not entirely clear. METHODS: To address these questions, nasal epithelial brushings were collected from 29 SAR and 31 Control individuals during and after the pollen season...
June 17, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28633586/porphyromonas-gingivalis-and-its-lps-differentially-regulate-the-expression-of-peptidyl-arginine-deiminases-in-human-chondrocytes
#15
René Elkaim, Isaac Maximiliano Bugueno-Valdebenito, Nadia Benkirane-Jessel, Henri Tenenbaum
Periodontitis, an inflammatory disease initiated by Gram-negative bacteria such as Porphyromonas gingivalis ( Pg), is considered as a risk factor for rheumatoid arthritis (RA). Our study aimed to determine the effect of Pg and its LPS on the expression of peptidyl arginine deiminase isotypes (PADs) in human primary chondrocytes (HC). HCs were infected with Pg and activated by its LPS (LPS- Pg). The mRNA expression levels of human PADs (1, 2, 3, 4 and 6) and bacterial enzyme (PADPg) were quantified by RT-qPCR...
January 1, 2017: Innate Immunity
https://www.readbyqxmd.com/read/28633569/thermal-and-chemical-denaturation-of-colocasia-esculenta-tuber-agglutinin-from-%C3%AE-2%C3%AE-2-to-unfolded-state
#16
Himadri Biswas, Rajagopal Chattopadhyaya
The major tuber storage protein of Colocasia esculenta, is a monocot mannose-binding, widely used dietary lectin, containing two polypeptides of 12.0 and 12.4 kDa. By both gel filtration and dynamic light scattering at pH 7.2, the lectin has a α2β2 form of apparent molecular mass of 48.2 kDa and a hydrodynamic radius of 6.1±0.2 nm; however, at pH 3, it migrates as αβ and has a reduced hydrodynamic radius of 4.6±0.3 nm. Our circular dichroism spectroscopy studies show that the lectin retains approximately 100% of its secondary structure between pH 2-8, going down to ~90% for extreme acidic / alkaline conditions...
June 20, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/28633480/a-prospective-examination-of-circulating-tumor-cell-profiles-in-non-small-cell-lung-cancer-molecular-subgroups
#17
C R Lindsay, V Faugeroux, S Michiels, E Pailler, F Facchinetti, D Ou, M V Bluthgen, C Pannet, M Ngo-Camus, G Bescher, C Caramella, F Billiot, J Remon, D Planchard, J-C Soria, B Besse, F Farace
Background: We report the first study examining the clinical, numerical and biological properties of circulating tumor cells (CTCs) according to molecular subtypes of non-small cell lung cancer (NSCLC). Patients and Methods: 125 patients with treatment-naïve stage IIIb-IV NSCLC were prospectively recruited for CellSearch analysis. Anti-vimentin antibody was included for examination of CTCs to assess their mesenchymal character. Associations of total CTCs and vimentin-positive (vim +) CTCs with clinical characteristics, tumor genotype and survival were assessed...
June 19, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28633365/phase-ii-study-of-copanlisib-a-pi3k-inhibitor-in-relapsed-or-refractory-indolent-or-aggressive-lymphoma
#18
M Dreyling, F Morschhauser, K Bouabdallah, D Bron, D Cunningham, S E Assouline, G Verhoef, K Linton, C Thieblemont, U Vitolo, F Hiemeyer, M Giurescu, J Garcia-Vargas, I Gorbatchevsky, L Liu, K Koechert, C Peña, M Neves, B H Childs, P L Zinzani
Background: Copanlisib is a pan-class I phosphatidylinositol 3-kinase (PI3K) inhibitor with predominant activity against the α- and δ- isoforms. Patients and methods: This phase II study evaluated the response rate of copanlisib administered intravenously on days 1, 8, and 15 of a 28-day cycle, in patients with indolent or aggressive malignant lymphoma. Archival tumor tissues were used for immunohistochemistry, gene-expression profiling, and mutation analysis...
June 14, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28633362/human-papillomavirus-related-oropharyngeal-cancer
#19
M Taberna, M Mena, M A Pavón, L Alemany, M L Gillison, R Mesía
High-risk (HR) human papillomavirus (HPV) is now recognised as the principal cause of the increasing incidence rates of oropharyngeal squamous cell carcinoma (OPSCC) in some parts of the world.The primary risk factor for developing HPV-related OPSCC is oral HPV-infection and the majority of oral HPV-infections are acquired by oral sex. Progression into a OPSCC includes persistent infection with evasion of immune response in the microenvironment, the activation of viral early genes (E6, E7) in basal epithelial cells, the deregulation of cell cycle and the accumulation of chromosomal instability...
June 15, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28632334/functional-analysis-of-female-biased-odorant-binding-protein-6-for-volatile-and-nonvolatile-host-compounds-in-adelphocoris-lineolatus-goeze
#20
L Sun, Q Wang, S Yang, Q Wang, Z Zhang, A Khashaveh, Y-J Zhang, Y-Y Guo
The polyphagous mirid bug Adelphocoris lineolatus relies heavily on olfactory cues to track suitable host plants. Thus, a better understanding of the molecular basis of its olfactory detection could contribute to the development of effective pest management strategies. In the present study, we report the expression profile of the odorant binding protein gene A. lineolatus odorant binding protein 6 (AlinOBP6). Quantitative real-time PCR experiments suggest that AlinOBP6 is female adult antennae-biased. Cellular immunolocalization analyses show that AlinOBP6 is highly expressed in the lymph of both multiporous sensilla basiconica and uniporous sensilla chaetica...
June 20, 2017: Insect Molecular Biology
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