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https://www.readbyqxmd.com/read/29332294/detection-of-mapk3-6-phosphorylation-during-hypersensitive-response-hr-associated-programmed-cell-death-in-plants
#1
Qingyu Wu, David Jackson
Programmed cell death (PCD) is an essential component of development, biotic and abiotic responses. Hypersensitive response (HR)-associated cell death activated under pathogen attack is one of the most dramatic manifestations of PCD in plants. Signal transduction through mitogen-activated protein kinase (MAPK) cascades, a very conserved signaling pathway across eukaryotes, is a core mediator for HR-associated PCD. Therefore, monitoring MAPK activation enables the mechanisms underlying HR-associated PCD to be elucidated...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29332191/genome-wide-characterization-of-differentially-expressed-genes-provides-insights-into-regulatory-network-of-heat-stress-response-in-radish-raphanus-sativus-l
#2
Ronghua Wang, Yi Mei, Liang Xu, Xianwen Zhu, Yan Wang, Jun Guo, Liwang Liu
Heat stress (HS) causes detrimental effects on plant morphology, physiology, and biochemistry that lead to drastic reduction in plant biomass production and economic yield worldwide. To date, little is known about HS-responsive genes involved in thermotolerance mechanism in radish. In this study, a total of 6600 differentially expressed genes (DEGs) from the control and Heat24 cDNA libraries of radish were isolated by high-throughput sequencing. With Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, some genes including MAPK, DREB, ERF, AP2, GST, Hsf, and Hsp were predominantly assigned in signal transductions, metabolic pathways, and biosynthesis and abiotic stress-responsive pathways...
January 13, 2018: Functional & Integrative Genomics
https://www.readbyqxmd.com/read/29332190/transcriptomic-profiling-of-developing-fiber-in-levant-cotton-gossypium-herbaceum-l
#3
Mithil J Parekh, Sushil Kumar, Ranbir S Fougat, Harshvardhan N Zala, Ramesh J Pandit
Cotton (Gossypium spp.) is an imperative economic crop of the globe due to its natural textile fiber. Molecular mechanisms of fiber development have been greatly revealed in allotetraploid cotton but remained unexplored in Gossypium herbaceum. G. herbaceum can withstand the rigors of nature like drought and pests but produce coarse lint. This undesirable characteristic strongly needs the knowledge of fiber development at molecular basis. The present study reported the transcriptome sequence of the developing fiber of G...
January 13, 2018: Functional & Integrative Genomics
https://www.readbyqxmd.com/read/29330894/structure-function-and-evolution-of-the-hemerythrin-like-domain-superfamily
#4
Claudia Alvarez-Carreño, Vikram Alva, Arturo Becerra, Antonio Lazcano
Hemerythrin-like proteins have generally been studied for their ability to reversibly bind oxygen through their binuclear non-heme iron centers. However, in recent years, it has become increasingly evident that some members of the hemerythrin-like superfamily also participate in many other biological processes. For instance, the binuclear non-heme iron site of YtfE, a hemerythrin-like protein involved in the repair of iron centers in Escherichia coli, catalyzes the reduction of nitric oxide to nitrous oxide, and the human F-box/LRR-repeat protein 5, which contains a hemerythrin-like domain, is involved in intracellular iron homeostasis...
January 13, 2018: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/29330550/a-metabolomics-pilot-study-on-desmoid-tumors-and-novel-drug-candidates
#5
Kelly A Mercier, Mushriq Al-Jazrawe, Raymond Poon, Zachery Acuff, Benjamin Alman
Desmoid tumors (aggressive fibromatosis) are locally invasive soft tissue tumors that lack the ability to metastasize. There are no directed therapies or standard treatment plan, and chemotherapeutics, radiation, and surgery often have temporary effects. The majority of desmoid tumors are related to T41A and S45F mutations of the beta-catenin encoding gene (CTNNB1). Using broad spectrum metabolomics, differences were investigated between paired normal fibroblast and desmoid tumor cells from affected patients...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330025/the-role-of-extracellular-and-intracellular-nicotinamide-phosphoribosyl-transferase-in-cancer-diagnostic-and-therapeutic-perspectives-and-challenges
#6
REVIEW
Maria Dalamaga, Gerasimos Socrates Christodoulatos, Christos S Mantzoros
Nicotinamide phosphoribosyl-transferase (Nampt) or pre-B cell colony-enhancing factor or visfatin represents a pleiotropic molecule acting as an enzyme, a cytokine and a growth factor. Intracellular Nampt plays an important role in cellular bioenergetics and metabolism, particularly NAD biosynthesis. NAD biosynthesis is critical in DNA repair, oncogenic signal transduction, transcription, genomic integrity and apoptosis. Although its insulin-mimetic function remains a controversial issue, extracellular Nampt presents proliferative, anti-apoptotic, pro-inflammatory, pro-angiogenic and metastatic properties...
January 9, 2018: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29330021/ccn4-wisp1-controls-cutaneous-wound-healing-by-modulating-proliferation-migration-and-ecm-expression-in-dermal-fibroblasts-via-%C3%AE-5%C3%AE-1-and-tnf%C3%AE
#7
Mitsuaki Ono, Asuka Masaki, Azusa Maeda, Tina M Kilts, Emilio S Hara, Taishi Komori, Hai Pham, Takuo Kuboki, Marian F Young
Understanding the mechanisms that control cutaneous wound healing is crucial to successfully manage repair of damaged skin. The goal of the current study was to uncover novel extracellular matrix (ECM) components that control the wound healing process. Full thickness skin defects were created in mice and used to show CCN4 up-regulation during wound-healing as early as 1 day after surgery, suggesting a role in inflammation and subsequent dermal migration and proliferation. To determine how CCN4 could regulate wound healing we used Ccn4-KO mice and showed they had delayed wound closure accompanied by reduced expression of Col1a1 and Fn mRNA...
January 9, 2018: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29329433/rage-mediates-a%C3%AE-accumulation-in-a-mouse-model-of-alzheimer-s-disease-via-modulation-of-%C3%AE-and-%C3%AE-secretase-activity
#8
Fang Fang, Qing Yu, Ottavio Arancio, Doris Chen, Smruti S Gore, Shi Fang Yan, Shirley ShiDu Yan
Receptor for Advanced Glycation End products (RAGE) has been implicated in amyloid β-peptide (Aβ)-induced perturbation relevant to the pathogenesis of Alzheimer's disease (AD). However, whether and how RAGE regulates Aβ metabolism remains largely unknown. Aβ formation arises from aberrant cleavage of amyloid precursor protein (APP) by β- and γ-secretase. To investigate whether RAGE modulates β- and γ-secretase activity potentiating Aβ formation, we generated mAPP mice with genetic deletion of RAGE (mAPP/RO)...
January 10, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29329397/minar1-is-a-notch2-binding-protein-that-inhibits-angiogenesis-and-breast-cancer-growth
#9
Rachel Xi-Yeen Ho, Rosana D Meyer, Kevin B Chandler, Esma Ersoy, Michael Park, Philip A Bondzie, Nima Rahimi, Huihong Xu, Catherine E Costello, Nader Rahimi
Intrinsically disordered proteins (IDPs)/intrinsically unstructured proteins (IUPs) are characterized by the lack of fixed or stable tertiary structure, and are increasingly recognized as an important class of proteins with major roles in signal transduction and transcriptional regulation. In this study, we report the identification and functional characterization of a previously uncharacterized protein (UPF0258/KIAA1024), major intrinsically disordered Notch2-associated receptor 1 (MINAR1). While MINAR1 carries a single transmembrane domain and a short cytoplasmic domain, it has a large extracellular domain that shares no similarity with known protein sequences...
January 10, 2018: Journal of Molecular Cell Biology
https://www.readbyqxmd.com/read/29329079/the-interactome-of-ebv-lmp1-evaluated-by-proximity-based-bioid-approach
#10
Mark A Rider, Mujeeb R Cheerathodi, Stephanie N Hurwitz, Dingani Nkosi, Lauren A Howell, Deanna C Tremblay, Xia Liu, Fanxiu Zhu, David G Meckes
Epstein-Barr virus LMP1 is an oncoprotein required for immortalizing B lymphocytes and also plays important roles in transforming non-lymphoid tissue. The discovery of LMP1 protein interactions will likely generate targets to treat EBV-associated cancers. Here, we define the broader LMP1 interactome using the recently developed BioID method. Combined with mass spectrometry, we identified over 1000 proteins across seven independent experiments with direct or indirect relationships to LMP1. Pathway analysis suggests that a significant number of the proteins identified are involved in signal transduction and protein or vesicle trafficking...
January 9, 2018: Virology
https://www.readbyqxmd.com/read/29328454/resveratrol-ameliorates-depressive-disorder-through-the-netrin1-mediated-extracellular%C3%A2-signal-regulated-kinase-camp-signal-transduction-pathway
#11
Feifei Wang, Jinhui Wang, Jinghong An, Guoming Yuan, Xiaolei Hao, Yi Zhang
Depressive disorder is a mental health disorder caused by the dysfunction of nerve regeneration, neuroendocrine and neurobiochemistry, which frequently results in cognitive impairments and disorder. Evidence has shown that resveratrol offers benefits for the treatment of depressive disorder. In the present study, the therapeutic effects of resveratrol were investigated and the potential mechanisms mediated by resveratrol were analyzed in hippocampal neuron cells. The anti‑oxidative stress and anti‑inflammatory properties of resveratrol were also examined in vitro and in vivo...
January 5, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29328452/hif%C3%A2-1%C3%AE-%C3%A2-induced-upregulation-of-lncrna-uca1-promotes-cell-growth-in-osteosarcoma-by-inactivating-the-pten-akt-signaling-pathway
#12
Tengfei Li, Yang Xiao, Tunsheng Huang
Increasing evidence indicates that long non‑coding RNAs (lncRNAs) play an important role in multiple biological processes including cell growth, differentiation, proliferation and invasion. Urothelial carcinoma associated 1 (UCA1) is a highly conserved nuclear ncRNA and a key regulator of cell proliferation and apoptosis in several types of cancers. However, its role in osteosarcoma progression is not well known. In the present study, we aimed to determine the biological role of UCA1 in osteosarcoma progression...
January 3, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29328021/the-presynaptic-ribbon-maintains-vesicle-populations-at-the-hair-cell-afferent-fiber-synapse
#13
Lars Becker, Michael E Schnee, Mamiko Niwa, Willy Sun, Stephan Maxeiner, Sara Talaei, Bechara Kachar, Mark A Rutherford, Anthony J Ricci
The ribbon is the structural hallmark of cochlear inner hair cell (IHC) afferent synapses, yet its role in information transfer to spiral ganglion neurons (SGNs) remains unclear. We investigated the ribbon's contribution to IHC synapse formation and function using KO mice lacking RIBEYE. Despite loss of the entire ribbon structure, synapses retained their spatiotemporal development and KO mice had a mild hearing deficit. IHCs of KO had fewer synaptic vesicles and reduced exocytosis in response to brief depolarization; high stimulus level rescued exocytosis in KO...
January 12, 2018: ELife
https://www.readbyqxmd.com/read/29327676/physiological-responses-to-taste-signals-of-functional-food-components
#14
Masataka Narukawa
The functions of food have three categories: nutrition, palatability, and bioregulation. As the onset of lifestyle-related diseases has increased, many people have shown interest in functional foods that are beneficial to bioregulation. We believe that functional foods should be highly palatable for increased acceptance from consumers. In order to design functional foods with a high palatability, we have investigated about the palatability, especially in relation to the taste of food. In this review, we discuss (1) the identification of taste receptors that respond to functional food components; (2) an analysis of the peripheral taste transduction system; and (3) the investigation of the relationship between physiological functions and taste signals...
January 12, 2018: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/29327510/zmstk1-and-zmstk2-encoding-receptor-like-cytoplasmic-kinase-are-involved-in-maize-pollen-development-with-additive-effect
#15
Mingxia Fan, Chunyu Zhang, Lei Shi, Chen Liu, Wenjuan Ma, Meiming Chen, Kuichen Liu, Fengchun Cai, Guohong Wang, Zhengyi Wei, Min Jiang, Zaochang Liu, Ansar Javeed, Feng Lin
Pollen germination and pollen tube growth are important physiological processes of sexual reproduction of plants, and also are involved in signal transduction. Our previous study reveals that ZmSTK1 and ZmSTK2 are two receptor-like cytoplasmic kinases (RLCK) homologs in Zea mays as members of receptor-like protein kinase (RLK) subfamily, sharing 86% identity at the amino acid level. Here, we report that ZmSTK1 and ZmSTK2, expressed at late stages of pollen development, regulate maize pollen development with additive effect...
January 11, 2018: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/29326489/ondansetron-ameliorates-depression-associated-with-obesity-in-high-fat-diet-fed-experimental-mice-an-investigation-based-on-the-behavioral-biochemical-and-molecular-approach
#16
Yeshwant Kurhe, Radhakrishnan Mahesh
INTRODUCTION: Obesity is an important risk factor for depression as more than half of the obese population is susceptible for depression at double rate. Our earlier studies reported the antidepressant potential of 5-HT3 receptor antagonist, ondansetron (OND) in depression associated obesity using behavioral tasks. The present research work is aimed to evaluate the effect of OND on depression associated with obesity with special emphasis on biochemical and molecular mechanisms such as hippocampal brain-derived neurotrophic factor (BDNF), cyclic adenosine monophosphate (cAMP), 5-hydroxytryptamine (5-HT), hippocampal histological examination and immunohistochemical expression of p53 proteins...
July 2017: Indian Journal of Pharmacology
https://www.readbyqxmd.com/read/29323472/integrated-analysis-of-the-transcriptome-and-metabolome-of-corynebacterium-glutamicum-during-penicillin-induced-glutamic-acid-production
#17
Takashi Hirasawa, Masaki Saito, Katsunori Yoshikawa, Chikara Furusawa, Hiroshi Shmizu
Corynebacterium glutamicum is known for its ability to produce glutamic acid and has been utilized for the fermentative production of various amino acids. Glutamic acid production in C. glutamicum is induced by penicillin. In this study, we analyzed the transcriptome and metabolome of C. glutamicum to understand the mechanism of penicillin-induced glutamic acid production. Transcriptomic analysis with DNA microarray revealed that expression of some glycolysis- and TCA cycle-related genes, which include those encoding the enzymes involved in conversion of glucose to 2-oxoglutaric acid, was upregulated after penicillin addition...
January 11, 2018: Biotechnology Journal
https://www.readbyqxmd.com/read/29323277/structure-and-dynamics-of-gpcr-signaling-complexes
#18
REVIEW
Daniel Hilger, Matthieu Masureel, Brian K Kobilka
G-protein-coupled receptors (GPCRs) relay numerous extracellular signals by triggering intracellular signaling through coupling with G proteins and arrestins. Recent breakthroughs in the structural determination of GPCRs and GPCR-transducer complexes represent important steps toward deciphering GPCR signal transduction at a molecular level. A full understanding of the molecular basis of GPCR-mediated signaling requires elucidation of the dynamics of receptors and their transducer complexes as well as their energy landscapes and conformational transition rates...
January 2018: Nature Structural & Molecular Biology
https://www.readbyqxmd.com/read/29323240/engineered-3d-printed-artificial-axons
#19
Daniela Espinosa-Hoyos, Anna Jagielska, Kimberly A Homan, Huifeng Du, Travis Busbee, Daniel G Anderson, Nicholas X Fang, Jennifer A Lewis, Krystyn J Van Vliet
Myelination is critical for transduction of neuronal signals, neuron survival and normal function of the nervous system. Myelin disorders account for many debilitating neurological diseases such as multiple sclerosis and leukodystrophies. The lack of experimental models and tools to observe and manipulate this process in vitro has constrained progress in understanding and promoting myelination, and ultimately developing effective remyelination therapies. To address this problem, we developed synthetic mimics of neuronal axons, representing key geometric, mechanical, and surface chemistry components of biological axons...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29323174/large-scale-transcriptome-changes-in-the-process-of-long-term-visual-memory-formation-in-the-bumblebee-bombus-terrestris
#20
Li Li, Songkun Su, Clint J Perry, Maurice R Elphick, Lars Chittka, Eirik Søvik
Many genes have been implicated in mechanisms of long-term memory formation, but there is still much to be learnt about how the genome dynamically responds, transcriptionally, during memory formation. In this study, we used high-throughput sequencing to examine how transcriptome profiles change during visual memory formation in the bumblebee (Bombus terrestris). Expression of fifty-five genes changed immediately after bees were trained to associate reward with a single coloured chip, and the upregulated genes were predominantly genes known to be involved in signal transduction...
January 11, 2018: Scientific Reports
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