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https://www.readbyqxmd.com/read/28231639/cell-cycle-rna-regulons-coordinating-early-lymphocyte-development
#1
REVIEW
Alison Galloway, Martin Turner
Lymphocytes undergo dynamic changes in gene expression as they develop from progenitor cells lacking antigen receptors, to mature cells that are prepared to mount immune responses. While transcription factors have established roles in lymphocyte development, they act in concert with post-transcriptional and post-translational regulators to determine the proteome. Furthermore, the post-transcriptional regulation of RNA regulons consisting of mRNAs whose protein products act cooperatively allows RNA binding proteins to exert their effects at multiple points in a pathway...
February 23, 2017: Wiley Interdisciplinary Reviews. RNA
https://www.readbyqxmd.com/read/28230703/omics-and-cachexia
#2
Brigitte Twelkmeyer, Nicolas Tardif, Olav Rooyackers
PURPOSE OF REVIEW: The purpose of this review is to recapture recent advances in cachexia-related diseases, mainly cancer cachexia, and treatment using genomic, transcriptomics, proteomic, and metabolomics-related techniques. RECENT FINDINGS: From recent studies in the cancer cachexia field it is clear that the tumor has a direct effect on distant organs via its secretome. The affected pathways on the other hand were largely known from earlier studies with changes in energy-related pathways (mainly lipid metabolism) and the protein degradation pathways...
February 21, 2017: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/28229048/anaplasma-phagocytophilum-infection-subverts-carbohydrate-metabolic-pathways-in-the-tick-vector-ixodes-scapularis
#3
Alejandro Cabezas-Cruz, Pilar Alberdi, James J Valdés, Margarita Villar, José de la Fuente
The obligate intracellular pathogen, Anaplasma phagocytophilum, is the causative agent of human, equine, and canine granulocytic anaplasmosis and tick-borne fever (TBF) in ruminants. A. phagocytophilum has become an emerging tick-borne pathogen in the United States, Europe, Africa, and Asia, with increasing numbers of infected people and animals every year. It has been recognized that intracellular pathogens manipulate host cell metabolic pathways to increase infection and transmission in both vertebrate and invertebrate hosts...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28227255/multi-omic-approaches-for-characterization-of-hepatocellular-carcinoma
#4
Habtom W Ressom, Cristina Di Poto, Alessia Ferrarini, Yunli Hu, Mohammad R Nezami Ranjbar, Ehwang Song, Rency S Varghese, Minkun Wang, Shiyue Zhou, Rui Zhu, Yiming Zuo, Mahlet G Tadesse, Yehia Mechref, Habtom W Ressom, Cristina Di Poto, Alessia Ferrarini, Yunli Hu, Mohammad R Nezami Ranjbar, Ehwang Song, Rency S Varghese, Minkun Wang, Shiyue Zhou, Rui Zhu, Yiming Zuo, Mahlet G Tadesse, Yehia Mechref, Mahlet G Tadesse, Shiyue ZhOU, Rui Zhu, Yehia Mechref, Alessia Ferrarini, Cristina Di Poto, Yiming Zuo, Habtom W Ressom, Mohammad R Nezami Ranjbar, Ehwang Song, Minkun Wang, Rency S Varghese, Yunli Hu
Multi-omic approaches offer the opportunity to characterize complex diseases such as cancer at various molecular levels. In this paper, we present transcriptomic, proteomic/glycoproteomic, glycomic, and metabolomic (TPGM) data we acquired by analysis of liver tissues from hepatocellular carcinoma (HCC) cases and patients with liver cirrhosis. We evaluated changes in the levels of transcripts, proteins, glycans, and metabolites between tumor and cirrhotic tissues by statistical methods. We demonstrated the potential of multi-omic approaches and network analysis to investigate the interactions among these biomolecules in the progression of liver cirrhosis to HCC...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225217/proteomic-analysis-of-the-cullin4b-interactome-using-proximity-dependent-biotinylation-in-living-cells
#5
Hailong Zhang, Shupeng Li, Pingting Liu, Frankie H F Lee, Albert H C Wong, Fang Liu
Cullin 4B (CUL4B) mutations have been implicated in mental retardation and dopamine-related behaviors due to disruptions in their interaction with Cullin-RING E3 ligases (CRLs). Thus, further identification of CUL4B substrates can increase the knowledge of protein homeostasis and illuminate the role of CUL4B in neuropsychiatric disease. However, the transient nature of the coupling between CUL4B and its substrates is difficult to detect in vivo using current approaches, thus hampers efforts to investigate functions of CRLs within unperturbed living systems...
February 22, 2017: Proteomics
https://www.readbyqxmd.com/read/28225015/identification-of-protein-biomarkers-and-signaling-pathways-associated-with-prostate-cancer-radioresistance-using-label-free-lc-ms-ms-proteomic-approach
#6
Lei Chang, Jie Ni, Julia Beretov, Valerie C Wasinger, Jingli Hao, Joseph Bucci, David Malouf, David Gillatt, Peter H Graham, Yong Li
Identifying biomarkers and signaling pathways are important for the management of prostate cancer (CaP) radioresistance. In this study, we identified differential proteins and signaling pathways from parental CaP cell lines and CaP radioresistant (RR) sublines using a label-free LC-MS/MS proteomics approach. A total of 309 signaling pathway proteins were identified to be significantly altered between CaP and CaP-RR cells (p ≤ 0.05, fold differences >1.5, ≥80% power). Among these proteins, nineteen are common among three paired CaP cell lines and associated with metastasis, progression and radioresistance...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28224194/mycoepoxydiene-suppresses-hela-cell-growth-by-inhibiting-glycolysis-and-the-pentose-phosphate-pathway
#7
Kehua Jin, Li Li, Xihuan Sun, Qingyan Xu, Siyang Song, Yuemao Shen, Xianming Deng
Upregulation of glycolysis and the pentose phosphate pathway (PPP) is a major characteristic of the metabolic reprogramming of cancer and provides cancer cells with energy and vital metabolites to support their rapid proliferation. Targeting glycolysis and the PPP has emerged as a promising antitumor therapeutic strategy. Marine natural products are attractive sources for anticancer therapeutics, as evidenced by the antitumor drug Yondelis. Mycoepoxydiene (MED) is a natural product isolated from a marine fungus that has shown promising inhibitory efficacy against HeLa cells in vitro...
February 21, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28224023/evaluation-of-liver-cirrhosis-and-hepatocellular-carcinoma-using-protein-protein-interaction-networks
#8
Mohammad Javad Ehsani Ardakani, Akram Safaei, Afsaneh Arefi Oskouie, Hesam Haghparast, Mehrdad Haghazali, Hamid Mohaghegh Shalmani, Hassan Peyvandi, Nosratollah Naderi, Mohammad Reza Zali
AIM: In the current study, we analysised only the articles that investigate serum proteome profile of cirrhosis patients or HCC patients versus healthy controls. BACKGROUND: Increased understanding of cancer biology has enabled identification of molecular events that lead to the discovery of numerous potential biomarkers in diseases. Protein-protein interaction networks is one of aspect that could elevate the understanding level of molecular events and protein connections that lead to the identification of genes and proteins associated with diseases...
December 2016: Gastroenterology and Hepatology From Bed to Bench
https://www.readbyqxmd.com/read/28223998/rna-seq-analysis-of-cold-and-drought-responsive-transcriptomes-of-zea-mays-ssp-mexicana-l
#9
Xiang Lu, Xuan Zhou, Yu Cao, Meixue Zhou, David McNeil, Shan Liang, Chengwei Yang
The annual Zea mays ssp. mexicana L. is a member of teosinte, a wild relative of the Zea mays spp. mays L. This subspecies has strong growth and regeneration ability, high tiller numbers, high protein and lysine content as well as resistance to many fungal diseases, and it can be effectively used in maize improvement. In this study, we reported a Zea mays ssp. mexicana L. transcriptome by merging data from untreated control (CK), cold (4°C) and drought (PEG2000, 20%) treated plant samples. A total of 251,145 transcripts (N50 = 1,269 bp) and 184,280 unigenes (N50 = 923 bp) were predicted, which code for homologs of near 47% of the published maize proteome...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28223351/in-vivo-and-in-vitro-proteome-analysis-of-hiv-1-infected-human-cd4-t-cells
#10
Johannes Nemeth, Valentina Vongrad, Karin J Metzner, Victoria Strouvelle, Rainer Weber, Patrick Pedrioli, Ruedi Aebersold, Huldrych Guenthard, Ben C Collins
Host directed therapies against HIV-1 are thought to be critical for long term containment of the HIV-1 pandemic but remain elusive. Since HIV-1 infects and manipulates important effectors of both the innate and adaptive immune system, identifying modulations of the host cell systems in humans during HIV-1 infection may be crucial for the development of immune based therapies. Here, we quantified the changes of the proteome in human CD4+ T cells upon HIV-1 infection, both in vitro and in vivo. A SWATH-MS approach was used to measure the proteome of human primary CD4+ T cells infected with HIV-1 in vitro as well as CD4+ T cells from HIV-1 infected patients with paired samples on and off antiretroviral treatment...
February 21, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28223137/human-clec16a-regulates-autophagy-through-modulating-mtor-activity
#11
Rachel Chun Yee Tam, Michelle Wing Man Li, Yan Pan Gao, Yuen Ting Pang, Sheng Yan, Wei Ge, Chak Sing Lau, Vera Sau Fong Chan
CLEC16A is genetically linked with multiple autoimmune disorders but its functional relevance in autoimmunity remains obscure. Recent evidence has signposted the emerging role of autophagy in autoimmune disease development. Here, by ectopic expression and siRNA silencing, we show that CLEC16A has an inhibitory role in starvation-induced autophagy in human cells. Combining quantitative proteomics and immunoblotting analyses, we found that CLEC16A likely regulates autophagy by activating mTOR pathway. Overexpression of CLEC16A was found to sensitize cells towards the availability of nutrients, resulting in a heightened mTOR activity, which in turn diminished LC3 autophagic activity following nutrient deprivation...
February 18, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28223106/diagnosis-of-major-depressive-disorder-by-combining-multimodal-information-from-heart-rate-dynamics-and-serum-proteomics-using-machine-learning-algorithm
#12
Eun Young Kim, Min Young Lee, Se Hyun Kim, Kyooseob Ha, Kwang Pyo Kim, Yong Min Ahn
OBJECTIVE: Major depressive disorder (MDD) is a systemic and multifactorial disorder that involves abnormalities in multiple biochemical pathways and the autonomic nervous system. This study applied a machine-learning method to classify MDD and control groups by incorporating data from serum proteomic analysis and heart rate variability (HRV) analysis for the identification of novel peripheral biomarkers. METHODS: The study subjects consisted of 25 drug-free female MDD patients and 25 age- and sex-matched healthy controls...
February 18, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28221766/proteoform-profile-mapping-of-the-human-serum-complement-component-c9-reveals-unexpected-new-features-of-n-o-and-c-glycosylation
#13
Vojtech Franc, Yang Yang, Albert J R Heck
The human complement C9 protein (~65 kDa) is a member of the complement pathway. It plays an essential role in the membrane attack complex (MAC), which forms a lethal pore on the cellular surface of pathogenic bacteria. Here, we charted in detail the structural micro-heterogeneity of C9 purified from human blood serum, using an integrative workflow combining high-resolution native mass spectrometry and (glyco)peptide-centric proteomics. The proteoform profile of C9 was acquired by high-resolution native mass spectrometry, which revealed the co-occurrence of ~50 distinct MS signals...
February 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28221718/quantitative-analysis-of-shigella-flexneri-protein-expression-under-acid-stress
#14
Kaiwen Yu, Zhen Wang, Fan Zhou, Jiezhang Jiang, Yanhua Liu, Mo Hu, Xiaoyun Liu
As an important foodborne pathogen, Shigella flexneri can cause widespread enteric infection with bacteria as few as hundreds. This is, at least in part, attributed to its robust anti-acid strategies because passage through the highly acidic human digestive tract is a prerequisite for successful bacterial infection. Nevertheless, our understanding of these mechanisms and the impact of acid stress on Shigella protein expression still remains largely incomplete. Herein we conducted a proteomic survey of Shigella spp...
February 21, 2017: Proteomics
https://www.readbyqxmd.com/read/28220989/global-and-local-mechanisms-sustain-axonal-proteostasis-of-transmembrane-proteins
#15
REVIEW
Víctor Hugo Cornejo, Alejandro Luarte, Andrés Couve
The control of neuronal protein homeostasis or proteostasis is tightly regulated both spatially and temporally, assuring accurate and integrated responses to external or intrinsic stimuli. Local or autonomous responses in dendritic and axonal compartments are crucial to sustain function during development, physiology and in response to damage or disease. Axons are responsible for generating and propagating electrical impulses in neurons, and the establishment and maintenance of their molecular composition are subject to extreme constraints exerted by length and size...
February 21, 2017: Traffic
https://www.readbyqxmd.com/read/28220896/mitochondrial-dysregulation-secondary-to-endoplasmic-reticulum-stress-in-autosomal-dominant-tubulointerstitial-kidney-disease-umod-adtkd-umod
#16
Elisabeth Kemter, Thomas Fröhlich, Georg J Arnold, Eckhard Wolf, Rüdiger Wanke
'Autosomal dominant tubulointerstitial kidney disease - UMOD' (ADTKD-UMOD) is caused by impaired maturation and secretion of mutant uromodulin (UMOD) in thick ascending limb of Henle loop (TAL) cells, resulting in endoplasmic reticulum (ER) stress and unfolded protein response (UPR). To gain insight into pathophysiology, we analysed proteome profiles of TAL-enriched outer renal medulla samples from ADTKD-UMOD and control mice by quantitative LC-MS/MS. In total, 212 differentially abundant proteins were identified...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28220839/pten-status-is-a-crucial-determinant-of-the-functional-outcome-of-combined-mek-and-mtor-inhibition-in-cancer
#17
Michele Milella, Italia Falcone, Fabiana Conciatori, Silvia Matteoni, Andrea Sacconi, Teresa De Luca, Chiara Bazzichetto, Vincenzo Corbo, Michele Simbolo, Isabella Sperduti, Antonina Benfante, Anais Del Curatolo, Ursula Cesta Incani, Federico Malusa, Adriana Eramo, Giovanni Sette, Aldo Scarpa, Marina Konopleva, Michael Andreeff, James Andrew McCubrey, Giovanni Blandino, Matilde Todaro, Giorgio Stassi, Ruggero De Maria, Francesco Cognetti, Donatella Del Bufalo, Ludovica Ciuffreda
Combined MAPK/PI3K pathway inhibition represents an attractive, albeit toxic, therapeutic strategy in oncology. Since PTEN lies at the intersection of these two pathways, we investigated whether PTEN status determines the functional response to combined pathway inhibition. PTEN (gene, mRNA, and protein) status was extensively characterized in a panel of cancer cell lines and combined MEK/mTOR inhibition displayed highly synergistic pharmacologic interactions almost exclusively in PTEN-loss models. Genetic manipulation of PTEN status confirmed a mechanistic role for PTEN in determining the functional outcome of combined pathway blockade...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28218735/aurora-kinase-a-regulates-survivin-stability-through-targeting-fbxl7-in-gastric-cancer-drug-resistance-and-prognosis
#18
M Kamran, Z-J Long, D Xu, S-S Lv, B Liu, C-L Wang, J Xu, E W-F Lam, Q Liu
Aurora kinase A (AURKA) has been implicated in the regulation of cell cycle progression, mitosis and a key number of oncogenic signaling pathways in various malignancies. However, little is known about its role in gastric cancer prognosis and genotoxic resistance. Here we found that AURKA was highly overexpressed in gastric cancer and inversely correlated with disease prognosis. Overexpression of AURKA exacerbated gastric cancer drug resistance through upregulating the expression of the anti-apoptotic protein Survivin...
February 20, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28217095/endogenous-protein-interactome-of-human-udp-glucuronosyltransferases-exposed-by-untargeted-proteomics
#19
Michèle Rouleau, Yannick Audet-Delage, Sylvie Desjardins, Mélanie Rouleau, Camille Girard-Bock, Chantal Guillemette
The conjugative metabolism mediated by UDP-glucuronosyltransferase enzymes (UGTs) significantly influences the bioavailability and biological responses of endogenous molecule substrates and xenobiotics including drugs. UGTs participate in the regulation of cellular homeostasis by limiting stress induced by toxic molecules, and by controlling hormonal signaling networks. Glucuronidation is highly regulated at genomic, transcriptional, post-transcriptional and post-translational levels. However, the UGT protein interaction network, which is likely to influence glucuronidation, has received little attention...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28216640/the-ubiquitin-ligase-cullin5-socs2-regulates-ndr1-stk38-stability-and-nf-%C3%AE%C2%BAb-transactivation
#20
Indranil Paul, Tanveer S Batth, Diego Iglesias-Gato, Amna Al-Araimi, Ibrahim Al-Haddabi, Amira Alkharusi, Gunnar Norstedt, Jesper V Olsen, Fahad Zadjali, Amilcar Flores-Morales
SOCS2 is a pleiotropic E3 ligase. Its deficiency is associated with gigantism and organismal lethality upon inflammatory challenge. However, mechanistic understanding of SOCS2 function is dismal due to our unawareness of its protein substrates. We performed a mass spectrometry based proteomic profiling upon SOCS2 depletion and yield quantitative data for ~4200 proteins. Through this screen we identify a novel target of SOCS2, the serine-threonine kinase NDR1. Over-expression of SOCS2 accelerates turnover, while its knockdown stabilizes, endogenous NDR1 protein...
February 20, 2017: Scientific Reports
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