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https://www.readbyqxmd.com/read/28103497/host-microbiota-interactions-epigenomic-regulation
#1
REVIEW
Vivienne Woo, Theresa Alenghat
The coevolution of mammalian hosts and their commensal microbiota has led to the development of complex symbiotic relationships between resident microbes and mammalian cells. Epigenomic modifications enable host cells to alter gene expression without modifying the genetic code, and therefore represent potent mechanisms by which mammalian cells can transcriptionally respond, transiently or stably, to environmental cues. Advances in genome-wide approaches are accelerating our appreciation of microbial influences on host physiology, and increasing evidence highlights that epigenomics represent a level of regulation by which the host integrates and responds to microbial signals...
January 16, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28103468/poly-a-binding-proteins-are-required-for-translational-regulation-in-vertebrate-oocytes-and-early-embryos
#2
Saffet Ozturk, Fatma Uysal
Poly(A)-binding proteins (PABPs) function in the timely regulation of gene expression during oocyte maturation, fertilisation and early embryo development in vertebrates. To this end, PABPs bind to poly(A) tails or specific sequences of maternally stored mRNAs to protect them from degradation and to promote their translational activities. To date, two structurally different PABP groups have been identified: (1) cytoplasmic PABPs, including poly(A)-binding protein, cytoplasmic 1 (PABPC1), embryonic poly(A)-binding protein (EPAB), induced PABP and poly(A)-binding protein, cytoplasmic 3; and (2) nuclear PABPs, namely embryonic poly(A)-binding protein 2 and nuclear poly(A)-binding protein 1...
January 20, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28101591/functions-of-cancer-derived-extracellular-vesicles-in-immunosuppression
#3
REVIEW
Liliana Czernek, Markus Düchler
Extracellular vesicles, including exosomes, constitute an important element of intercellular communication by carrying a variety of molecules from producer to target cells. The transport of mRNA and miRNA can directly modulate gene expression in the target cells. The miRNA content in exosomes is characteristic for the cell from which the vesicles were derived enabling the usage of exosomes as biomarkers for the diagnosis various diseases, including cancer. Cancer-derived exosomes support the survival and progression of tumors in many ways and also contribute to the neutralization of the anti-cancer immune response...
January 18, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28100850/molecular-characteristic-and-physiological-role-of-dopa-decarboxylase
#4
Joanna Guenter, Robert Lenartowski
The enzyme DOPA decarboxylase (aromatic-L-amino-acid decarboxylase, DDC) plays an important role in the dopaminergic system and participates in the uptake and decarboxylation of amine precursors in the peripheral tissues. Apart from catecholamines, DDC catalyses the biosynthesis of serotonin and trace amines. It has been shown that the DDC amino acid sequence is highly evolutionarily conserved across many species. The activity of holoenzyme is regulated by stimulation/blockade of membrane receptors, phosphorylation of serine residues, and DDC interaction with regulatory proteins...
December 31, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28100240/reactivation-of-dormant-anti-tumor-immunity-a-clinical-perspective-of-therapeutic-immune-checkpoint-modulation
#5
REVIEW
Richard Greil, Evelyn Hutterer, Tanja Nicole Hartmann, Lisa Pleyer
In favor of their outgrowth, cancer cells must resist immune surveillance and edit the immune response. Cancer immunoediting is characterized by fundamental changes in the cellular composition and the inflammatory cytokine profiles in the microenvironment of the primary tumor and metastatic niches, with an ever increasing complexity of interactions between tumor cells and the immune system. Recent data suggest that genetic instability and immunoediting are not necessarily disparate processes. Increasing mutational load may be associated with multiple neoepitopes expressed by the tumor cells and thus increased chances for the immune system to recognize and combat these cells...
January 19, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28099275/characterization-regulation-and-targeting-of-erythroid-progenitors-in-normal-and-disordered-human-erythropoiesis
#6
Brian M Dulmovits, Jimmy Hom, Anupama Narla, Narla Mohandas, Lionel Blanc
PURPOSE OF REVIEW: The erythroid progenitors burst-forming unit-erythroid and colony-forming unit-erythroid have a critical role in erythropoiesis. These cells represent a heterogeneous and poorly characterized population with modifiable self-renewal, proliferation and differentiation capabilities. This review focuses on the current state of erythroid progenitor biology with regard to immunophenotypic identification and regulatory programs. In addition, we will discuss the therapeutic implications of using these erythroid progenitors as pharmacologic targets...
January 17, 2017: Current Opinion in Hematology
https://www.readbyqxmd.com/read/28098909/biology-and-function-of-glypican-3-as-a-candidate-for-early-cancerous-transformation-of-hepatocytes-in-hepatocellular-carcinoma-review
#7
Mauro Montalbano, Jeremias Georgiadis, Ashlyn L Masterson, Joshua T McGuire, Janika Prajapati, Ali Shirafkan, Cristiana Rastellini, Luca Cicalese
Glypican-3 (GPC-3), a transmembrane heparan sulfate proteoglycan (HSPG), has recently been investigated as a player in tissue-dependent cellular signaling, specifically as a regulator of growth. Noteworthy, the regulatory protein has been implicated in both stimulatory and inhibitory pathways involving cell growth. Initially, GPC-3 was thought to act as a cell cycle regulator, as a loss-of-function mutation in the gene caused a hyper-proliferative state known as Simpson-Golabi-Behmel (SGB) overgrowth syndrome...
January 18, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28098792/acknowledgement-to-reviewers-of-genes-in-2016
#8
EDITORIAL
Genes Editorial Office
The editors of Genes would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2016. We greatly appreciate the contribution of expert reviewers, which is crucial to the journal's editorial process. We aim to recognize reviewer contributions through several mechanisms, of which the annual publication of reviewer names is one. Reviewers receive a voucher entitling them to a discount on their next MDPI publication and can download a certificate of recognition directly from our submission system...
January 13, 2017: Genes
https://www.readbyqxmd.com/read/28095716/circrnas-a-regulator-of-cellular-stress
#9
Joseph W Fischer, Anthony K L Leung
Circular RNAs (CircRNAs) were first identified as a viroid and later found to also be an endogenous RNA splicing product in eukaryotes. In recent years, a series of RNA-sequencing analyses from a diverse range of eukaryotes have shed new light on these eukaryotic circRNAs, revealing dynamic expression patterns in various developmental stages and physiological conditions. In this review, we focus on circRNAs implicated in stress response pathways and explore potential mechanisms underlying their regulation. To date, circRNAs have been shown to act as scaffolds in the assembly of protein complexes, sequester proteins from native subcellular localization, activate transcription of parental genes, inhibit RNA-protein interactions, and function as regulators of microRNA activity...
January 17, 2017: Critical Reviews in Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28095647/new-generation-mass-spectrometry-expands-the-toolbox-of-cell-and-developmental-biology
#10
REVIEW
Camille Lombard-Banek, Erika P Portero, Rosemary M Onjiko, Peter Nemes
Systems cell biology understanding of development requires characterization of all the molecules produced in the biological system. Decades of research and new-generation sequencing provided functional information on key genes and transcripts. However, there is less information available on how differential gene expression translates into the domains of functionally important proteins, peptides, and metabolites, and how changes in these molecules impact development. Mass spectrometry (MS) is the current technology of choice for the detection and quantification of large numbers of proteins and metabolites, because it requires no use of antibodies, functional probes, or a priori knowledge of molecules produced in the system...
January 17, 2017: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/28095618/genome-wide-analysis-of-canonical-wnt-target-gene-regulation-in-xenopus-tropicalis-challenges-%C3%AE-catenin-paradigm
#11
REVIEW
Yukio Nakamura, Stefan Hoppler
Wnt/β-catenin signaling is an important cell-to-cell signaling mechanism that controls gene expression during embryonic development and is critically implicated in human diseases. Developmental, cellular, and transcriptional responses to Wnt signaling are remarkably context-specific in different biological processes. While nuclear localization of β-catenin is the key to activation of the Wnt/β-catenin pathway and target gene expression, the molecular mechanisms of how the same Wnt/β-catenin signaling pathway induces specific responses remain undetermined...
January 17, 2017: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/28095038/pure-androgen-producing-adrenal-tumor-clinical-features-and-pathogenesis
#12
Anli Tong, Jun Jiang, Fen Wang, Chunyan Li, Yushi Zhang, Xueyan Wu
OBJECTIVE: Pure androgen-secreting adrenal tumors (PASATs) are extremely rare, most reports involving only a single case. This study examined 9 cases of PASAT, with an attempt to characterize its clinical features and to explore their possible pathogenesis. METHODS: Clinical data of 9 patients with PASAT were retrospectively reviewed. Immunostaining were conducted, and Aryl hydrocarbon receptor-interacting protein (AIP) were amplified and directly sequenced. RESULTS: The onset age of the patients ranged from 3...
January 17, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28094775/nanotechnologies-in-delivery-of-mrna-therapeutics-using-nonviral-vector-based-delivery-systems
#13
REVIEW
S Guan, J Rosenecker
Due to its safe and effective protein expression profile, in vitro transcribed messenger RNA (IVT-mRNA) represents a promising candidate in the development of novel therapeutics for genetic diseases, vaccines or gene editing strategies, especially when its inherent shortcomings (e.g. instability and immunogenicity) have been partially addressed via structural modifications. However, numerous unsolved technical difficulties in successful in vivo delivery of IVT-mRNA have greatly hindered the applications of IVT-mRNA in clinical development...
January 17, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28094214/primary-intraosseous-adenoid-cystic-carcinoma-of-the-mandible-a-comprehensive-review-and-analysis-of-four-new-cases-with-emphasis-on-morphologic-immunophenotypic-and-molecular-characteristics
#14
Jing Han, Ting Gu, Xi Yang, Longwei Hu, Ronghui Xia, Zhen Tian, Jiang Li, Ling Zhu, Liqun Xu, Chunye Zhang
OBJECTIVE: To comprehensively review the clinical manifestations, imaging, diagnosis, treatment, and pathologic features of primary intraosseous adenoid cystic carcinoma (PIACC) of the mandible and analyze PIACC histopathology and molecular features in four cases. STUDY DESIGN: We reviewed the literature and retrospectively studied four cases of PIACC. RESULTS: The clinical and imaging findings of PIACC are similar to other malignant or borderline-malignant mandible tumors...
November 11, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28094005/imprinted-genes-and-the-regulation-of-placental-endocrine-function-pregnancy-and-beyond
#15
Rosalind M John
Genomic imprinting is an epigenetic process responsible for the monoallelic expression of a subset of genes in mammals. Imprinted genes have been demonstrated to play important functions prenatally regulating fetal growth and placental development with some functions persisting beyond pregnancy to influence both metabolism and behaviour in adults. This review focuses on the function of imprinted genes in regulating placental hormones, and the probability that these functions manifest their impact beyond pregnancy...
January 10, 2017: Placenta
https://www.readbyqxmd.com/read/28092669/interplay-between-epigenetics-and-metabolism-in-oncogenesis-mechanisms-and-therapeutic-approaches
#16
REVIEW
C C Wong, Y Qian, J Yu
Epigenetic and metabolic alterations in cancer cells are highly intertwined. Oncogene-driven metabolic rewiring modifies the epigenetic landscape via modulating the activities of DNA and histone modification enzymes at the metabolite level. Conversely, epigenetic mechanisms regulate the expression of metabolic genes, thereby altering the metabolome. Epigenetic-metabolomic interplay has a critical role in tumourigenesis by coordinately sustaining cell proliferation, metastasis and pluripotency. Understanding the link between epigenetics and metabolism could unravel novel molecular targets, whose intervention may lead to improvements in cancer treatment...
January 16, 2017: Oncogene
https://www.readbyqxmd.com/read/28092617/supplementation-of-pigs-diet-with-zinc-and-copper-as-alternative-to-conventional-antimicrobials
#17
B Dębski
Modern commercial pig farming systems inflict increased stress in animals, which often leads to various negative changes in the gastro-intestinal tract, especially in the case of piglets. Ban of antibiotics, used as growth promoters, has caused a need for alternatives to conventional antimicrobials in swine diets. Use of pre-/or probiotics, organic acids and plant extracts is often recommended, but it seems that zinc oxide and cooper salts, which were traditionally included in high doses to piglets diet, possess the highest efficacy...
December 1, 2016: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28092162/clinical-use-of-high-mobility-group-box-1-and-the-receptor-for-advanced-glycation-end-products-in-the-prognosis-and-risk-stratification-of-heart-failure-a-literature-review
#18
Amanda M Marsh, Austin Huy Nguyen, Taylor M Parker, Devendra K Agrawal
Heart failure (HF) is a clinical syndrome that represents the end stage of heart disease and remains the leading cause of morbidity and mortality worldwide. As heart failure mortality rates remain elevated, additional biomarkers that facilitate early detection or risk stratification in HF is of particularly great interest. High mobility group box 1 (HMGB1) and receptor for advanced glycation end products (RAGE) cause the activation of intracellular signaling, gene expression, and production of inflammatory cytokines and have been linked to many inflammatory disease states such as diabetes mellitus and atherosclerosis...
November 30, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28091933/flagellar-regulation-and-virulence-in-the-entomopathogenic-bacteria-xenorhabdus-nematophila-and-photorhabdus-luminescens
#19
Alain Givaudan, Anne Lanois
There is a complex interplay between the regulation of flagellar motility and the expression of virulence factors in many bacterial pathogens. Here, we review the literature on the direct and indirect roles of flagellar motility in mediating the tripartite interaction between entomopathogenic bacteria (Photorhabdus and Xenorhabdus), their nematode hosts, and their insect targets. First, we describe the swimming and swarming motility of insect pathogenic bacteria and its impact on insect colonization. Then, we describe the coupling between the expression of flagellar and virulence genes and the dynamic of expression of the flagellar regulon during invertebrate infection...
December 28, 2016: Current Topics in Microbiology and Immunology
https://www.readbyqxmd.com/read/28090518/clinical-characteristics-and-molecular-pathology-of-skull-ectopic-thyroid-cancer
#20
Longxing Cao, Zhongyong Wang, Jiawei Ma, Jinsheng Chen, Haojiang Zhu, Xiaohua Zhou, Qing Zhu, Jun Dong, Qing Lan, Qiang Huang
Thyroid cancer is very common, but skull ectopic thyroid cancer has not been reported in 50 years of literatures in foreign countries. There are only four cases of the skull ectopic thyroid cancer reported in more than 30 years of domestic literature including the cases in this report. This paper aims to investigate the clinical characteristics and possible molecular mechanisms of this rare disease. Five keywords of "thyroid gland", "ectopic thyroid", "thyroid cancer", "ectopic thyroid cancer" and "metastatic thyroid cancer" were included and 50 years of literatures in the PubMed-MEDLINE and Wanfang database were reviewed...
December 2016: Annals of Translational Medicine
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