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https://www.readbyqxmd.com/read/28723574/proteomic-analysis-of-the-human-tankyrase-protein-interaction-network-reveals-its-role-in-pexophagy
#1
Xu Li, Han Han, Mao-Tian Zhou, Bing Yang, Albert Paul Ta, Nan Li, Junjie Chen, Wenqi Wang
Tankyrase 1 (TNKS) and tankyrase 2 (TNKS2) belong to the poly(ADP-ribose) polymerase family of proteins, which use nicotinamide adenine dinucleotide to modify substrate proteins with ADP-ribose modifications. Emerging evidence has revealed the pathological relevance of TNKS and TNKS2, and identified these two enzymes as potential drug targets. However, the cellular functions and regulatory mechanisms of TNKS/2 are still largely unknown. Through a proteomic analysis, we defined the protein-protein interaction network for human TNKS/2 and revealed more than 100 high-confidence interacting proteins with numerous biological functions in this network...
July 18, 2017: Cell Reports
https://www.readbyqxmd.com/read/28721406/chemical-proteomics-reveal-cd147-as-a-functional-target-of-pseudolaric-acid-b-in-human-cancer-cells
#2
Yiqing Zhou, Zhengao Di, Xiaoming Li, Yuanhong Shan, Weichao Li, Haibing Zhang, Youli Xiao
CD147 is a glycosylated transmembrane protein highly expressed on the surface of various tumor cells which plays vital roles in tumor invasion, progression and metastasis. We report the discovery of the natural product pseudolaric acid B (PAB) directly targeting CD147 by chemical proteomics utilizing a PAB-derived photoaffinity probe which could serve as a novel type of anticancer reagent.
July 19, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28720486/loss-of-synaptic-zinc-transport-in-progranulin-deficient-mice-may-contribute-to-progranulin-associated-psychopathology-and-chronic-pain
#3
Stefanie Hardt, Juliana Heidler, Boris Albuquerque, Lucie Valek, Christine Altmann, Annett Wilken-Schmitz, Michael K E Schäfer, Ilka Wittig, Irmgard Tegeder
Affective and cognitive processing of nociception contributes to the development of chronic pain and vice versa, pain may precipitate psychopathologic symptoms. We hypothesized a higher risk for the latter with immanent neurologic diseases and studied this potential interrelationship in progranulin-deficient mice, which are a model for frontotemporal dementia, a disease dominated by behavioral abnormalities in humans. Young naïve progranulin deficient mice behaved normal in tests of short-term memory, anxiety, depression and nociception, but after peripheral nerve injury, they showed attention-deficit and depression-like behavior, over-activity, loss of shelter-seeking, reduced impulse control and compulsive feeding behavior, which did not occur in equally injured controls...
July 15, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28719652/long-term-follow-up-of-human-t-cell-responses-to-conserved-hiv-1-regions-elicited-by-dna-simian-adenovirus-mva-vaccine-regimens
#4
Nathifa Moyo, Nicola J Borthwick, Edmund G Wee, Silvia Capucci, Alison Crook, Lucy Dorrell, Tomáš Hanke
BACKGROUND: Durability of vaccine-elicited immune responses is one of the key determinants for vaccine success. Our aim is to develop a vaccination strategy against the human immunodeficiency virus type 1 (HIV-1), which induces protective and durable CD8+ T-cell responses. The central theorem of our approach is to focus T cells on highly conserved regions of the HIV-1 proteome and this is achieved through the use of the first-generation conserved vaccine immunogen HIVconsv. This immunogen vectored by plasmid DNA, simian adenovirus and poxvirus MVA was tested in healthy, HIV-1-negative adults in UK and induced high magnitudes of HIVconsv-specific plurifunctional CD8+ T cells capable of in vitro HIV-1 inhibition...
2017: PloS One
https://www.readbyqxmd.com/read/28718674/design-and-synthesis-of-a-novel-photoaffinity-probe-for-labelling-egf-receptor-tyrosine-kinases
#5
You-Guang Zheng, Xiao-Qing Wu, Jun Su, Ping Jiang, Liang Xu, Jian Gao, Bin Cai, Min Ji
The epidermal growth factor receptor (EGFR) and HER2 are two important tyrosine kinases that play crucial roles in signal transduction pathways that regulate numerous cellular functions including proliferation, differentiation, migration, and angiogenesis. In the past 20 years, many proteomic methods have emerged as powerful methods to evaluate proteins in biological processes and human disease states. Among them, activity-based protein profiling (ABPP) is one useful approach for the functional analysis of proteins...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28718514/aldehyde-dehydrogenase-1-a1-regulates-energy-metabolism-in-adipocytes-from-different-species
#6
Kefeng Yang, Christopher Adin, Qiwen Shen, Ly James Lee, Lianbo Yu, Paolo Fadda, Arpad Samogyi, Kathleen Ham, Lu Xu, Chen Gilor, Ouliana Ziouzenkova
BACKGROUND: Survival and longevity of xenotransplants depend on immune function and ability to integrate energy metabolism between cells from different species. However, mechanisms for interspecies cross talk in energy metabolism are not well understood. White adipose tissue stores energy and is capable of mobilization and dissipation of energy as heat (thermogenesis) by adipocytes expressing uncoupling protein 1 (Ucp1). Both pathways are under the control of vitamin A metabolizing enzymes...
July 17, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28717845/proteomics-in-inflammatory-bowel-disease-approach-using-animal-models
#7
REVIEW
Fadi H Mourad, Yunki Yau, Valerie C Wasinger, Rupert W Leong
Recently, proteomics studies have provided important information on the role of proteins in health and disease. In the domain of inflammatory bowel disease, proteomics has shed important light on the pathogenesis and pathophysiology of inflammation and has contributed to the discovery of some putative clinical biomarkers of disease activity. By being able to obtain a large number of specimens from multiple sites and control for confounding environmental, genetic, and metabolic factors, proteomics studies using animal models of colitis offered an alternative approach to human studies...
July 17, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28715131/transcriptome-analysis-suggests-a-role-for-the-differential-expression-of-cerebral-aquaporins-and-the-mapk-signalling-pathway-in-human-temporal-lobe-epilepsy
#8
Mootaz M Salman, Mariam A Sheilabi, Dev Bhattacharyya, Philip Kitchen, Alex C Conner, Roslyn M Bill, M Nicola Woodroofe, Matthew T Conner, Alessandra P Princivalle
Epilepsies are common disorders of the central nervous system (CNS), affecting up to 2% of the global population. Pharmaco-resistance is a major clinical challenge affecting about 30% of temporal lobe epilepsy (TLE) patients. Water homeostasis has been shown crucial for regulation of neuronal excitability. The control of water movement is achieved through a family of small integral membrane channel proteins called aquaporins (AQPs). Despite the fact that changes in water homeostasis occur in sclerotic hippocampi of people with TLE, the expression of AQPs in the epileptic brain is not fully characterised...
July 17, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28714175/schwann-cells-secrete-extracellular-vesicles-to-promote-and-maintain-the-proliferation-and-multipotency-of-hdpcs
#9
Ziyue Li, Yan Liang, Kuangwu Pan, Hui Li, Mei Yu, Weihua Guo, Guoqing Chen, Weidong Tian
OBJECTIVES: Schwann cells (SCs) are the principal glial cells in peripheral nerve system, involved in neuropathies with great regenerative potential. Dental pulp cells have been reported to maintain neurogenic potential. In contrast, the regulatory role of SCs on human dental pulp cells (hDPCs) development remains undefined. MATERIALS AND METHODS: SC secretion and SC-derived extracellular vesicles (EVs) were collected and used to treat hDPCs; and proliferation and multiple differentiation of hDPCs were detected after EVs treatments...
August 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28714000/circulating-levels-of-angiogenesis-related-growth-factors-in-breast-cancer-a-study-to-profile-proteins-responsible-for-tubule-formation
#10
Gemma A Barron, Marie Goua, Klaus W J Wahle, Giovanna Bermano
The present study exploited a versatile in vitro endothelial cell/fibroblast co-culture cell system to investigate the association between angiogenesis and breast cancer by comparing the capacity of plasma from women with breast cancer and age-matched controls, to influence tubule formation and modulate angiogenesis in vitro, and to identify plasma circulating factors which might be responsible. Plasma from women with breast cancer (n=8) (added on day 7 after co-culture establishment) significantly increased tubule formation by 57% (P<0...
July 11, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28713344/outer-membrane-proteome-of-veillonella-parvula-a-diderm-firmicute-of-the-human-microbiome
#11
Daniel I Poppleton, Magalie Duchateau, Véronique Hourdel, Mariette Matondo, Jennifer Flechsler, Andreas Klingl, Christophe Beloin, Simonetta Gribaldo
Veillonella parvula is a biofilm-forming commensal found in the lungs, vagina, mouth, and gastro-intestinal tract of humans, yet it may develop into an opportunistic pathogen. Furthermore, the presence of Veillonella has been associated with the development of a healthy immune system in infants. Veillonella belongs to the Negativicutes, a diverse clade of bacteria that represent an evolutionary enigma: they phylogenetically belong to Gram-positive (monoderm) Firmicutes yet maintain an outer membrane (OM) with lipopolysaccharide similar to classic Gram-negative (diderm) bacteria...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28712655/insulin-regulation-of-proteostasis-and-clinical-implications
#12
REVIEW
Haleigh A James, Brian T O'Neill, K Sreekumaran Nair
Maintenance and modification of the cellular proteome are at the core of normal cellular physiology. Although insulin is well known for its control of glucose homeostasis, its critical role in maintaining proteome homeostasis (proteostasis) is less appreciated. Insulin signaling regulates protein synthesis and degradation as well as posttranslational modifications at the tissue level and coordinates proteostasis at the organism level. Here, we review regulation of proteostasis by insulin in postabsorptive, postprandial, and diabetic states...
July 10, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28712636/human-exoproteome-in-acute-apical-abscesses
#13
Cristiane F Alfenas, Tiago A O Mendes, Humberto J O Ramos, Fernanda P Bruckner, Henrique S Antunes, Isabela N Rôças, José F Siqueira, José C Provenzano
INTRODUCTION: An acute apical abscess is a severe response of the host to massive invasion of the periapical tissues by bacteria from infected root canals. Although many studies have investigated the microbiota involved in the process, information on the host factors released during abscess formation is scarce. The purpose of this study was to describe the human exoproteome in samples from acute apical abscesses. METHODS: Fourteen pus samples were obtained by aspiration from patients with an acute apical abscess...
July 13, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28712153/proteomic%C3%A2-analysis-reveals-the-enhancement-of-human-serum-apolipoprotein-a-1-apo-a-1-in%C3%A2-individuals%C3%A2-infected-with-multiple-dengue-virus-serotypes
#14
Manchala Nageswar Reddy, Ranjeet Dungdung, Rajendra Pilankatta
OBJECTIVES: Human serum protein profiling of the individual infected with multiple dengue virus serotypes for identifying the potential biomarkers and to investigate the cause for the severity of dengue virus infection. METHODS: Dengue virus NS1 positive serum samples were pooled into two groups (S2 and S3) based on the molecular serotyping and number of heterotypic infections. The pooled serum samples were subjected to two dimensional gel electrophoresis (2DGE) to identify the differentially expressed proteins...
July 16, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28711782/the-human-microbiome
#15
REVIEW
Hubert E Blum
Until recently, human microbiology was based on the identification of single microbes, such as bacteria, fungi and viruses, frequently isolated from patients with acute or chronic infections. Novel culture-independent molecular biochemical analyses (genomics, transcriptomics, proteomics, metabolomics) allow today to detect and classify the diverse microorganisms in a given ecosystem (microbiota), such as the gastrointestinal tract, the skin, the airway system, the urogenital tract and others, and to assess all genomes in these ecosystems (microbiome) as well as their gene products...
July 13, 2017: Advances in Medical Sciences
https://www.readbyqxmd.com/read/28710702/bayesian-inference-for-biomarker-discovery-in-proteomics-an-analytic-solution
#16
Noura Dridi, Audrey Giremus, Jean-Francois Giovannelli, Caroline Truntzer, Melita Hadzagic, Jean-Philippe Charrier, Laurent Gerfault, Patrick Ducoroy, Bruno Lacroix, Pierre Grangeat, Pascal Roy
This paper addresses the question of biomarker discovery in proteomics. Given clinical data regarding a list of proteins for a set of individuals, the tackled problem is to extract a short subset of proteins the concentrations of which are an indicator of the biological status (healthy or pathological). In this paper, it is formulated as a specific instance of variable selection. The originality is that the proteins are not investigated one after the other but the best partition between discriminant and non-discriminant proteins is directly sought...
December 2017: EURASIP Journal on Bioinformatics & Systems Biology
https://www.readbyqxmd.com/read/28710530/proteomic-characterisation-reveals-active-wnt-signalling-by-human-multipotent-stromal-cells-as-a-key-regulator-of-beta-cell-survival-and-proliferation
#17
Miljan Kuljanin, Gillian I Bell, Stephen E Sherman, Gilles A Lajoie, David A Hess
AIMS/HYPOTHESIS: Novel strategies to stimulate the expansion of beta cell mass in situ are warranted for diabetes therapy. The aim of this study was to elucidate the secretome of human bone marrow (BM)-derived multipotent stromal cells (MSCs) with documented islet regenerative paracrine function. We hypothesised that regenerative MSCs will secrete a unique combination of protein factors that augment islet regeneration. METHODS: Human BM-derived MSCs were examined for glucose-lowering capacity after transplantation into streptozotocin-treated NOD/severe combined immunodeficiency (SCID) mice and segregated into samples with regenerative (MSC(R)) vs nonregenerative (MSC(NR)) capacity...
July 14, 2017: Diabetologia
https://www.readbyqxmd.com/read/28709399/draft-sequencing-and-assembly-of-the-genome-of-the-world-s-largest-fish-the-whale-shark-rhincodon-typus-smith-1828
#18
Timothy D Read, Robert A Petit, Sandeep J Joseph, Md Tauqeer Alam, M Ryan Weil, Maida Ahmad, Ravila Bhimani, Jocelyn S Vuong, Chad P Haase, D Harry Webb, Milton Tan, Alistair D M Dove
BACKGROUND: The whale shark (Rhincodon typus) has by far the largest body size of any elasmobranch (shark or ray) species. Therefore, it is also the largest extant species of the paraphyletic assemblage commonly referred to as fishes. As both a phenotypic extreme and a member of the group Chondrichthyes - the sister group to the remaining gnathostomes, which includes all tetrapods and therefore also humans - its genome is of substantial comparative interest. Whale sharks are also listed as an endangered species on the International Union for Conservation of Nature's Red List of threatened species and are of growing popularity as both a target of ecotourism and as a charismatic conservation ambassador for the pelagic ecosystem...
July 14, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28707887/full-characterization-of-localization-diversity-in-human-protein-interactome
#19
Lixin Cheng, Kaili Fan, Yan Huang, Dong Wang, Kwong-Sak Leung
Spatial-temporal regulation amongst proteins forms dynamic networks in cells. Co-existence in common cell compartments can improve biological reliability of the protein-protein interactions. However, this is usually overlooked by most proteomic studies and leads to unrealistic discoveries. In this paper, we systematically characterize the interaction localization diversity in human protein interactome using localization coefficient, a novel metric proposed for assessing how diversely the interactions localize among cell compartments...
July 14, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28707473/aggregatibacter-actinomycetemcomitans-growth-in-biofilm-versus-planktonic-state-differential-expression-of-proteins
#20
Arancha Llama-Palacios, Oksana Potupa, María Del Carmen Sánchez, Elena Figuero, David Herrera, Mariano Sanz
Aggregatibacter actinomycetemcomitans (Aa) is a pathogenic bacterium residing in the subgingival plaque biofilm strongly associated with the pathogenesis of periodontitis. The aim of this investigation was to study the protein differential expression of Aa when growing on biofilm compared to planktonic state using proteomic analysis by the 2D-DIGE™ system. Eighty-seven proteins were differentially expressed during biofilm growth (1.5-fold, p<0.05), being 13 over expressed and 37 down expressed. Those repressed were mainly proteins involved in metabolism, biosynthesis and transport...
July 14, 2017: Journal of Proteome Research
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