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Gene regulation review

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https://www.readbyqxmd.com/read/29150934/the-current-status-and-perspectives-regarding-the-clinical-implication-of-intracellular-calcium-in-breast-cancer
#1
REVIEW
Amir Tajbakhsh, Alireza Pasdar, Mehdi Rezaee, Mostafa Fazeli, Saman Soleimanpour, Seyed Mahdi Hassanian, Zahra FarshchiyanYazdi, Tayebe Younesi Rad, Gordon A Ferns, Amir Avan
Calcium ions (Ca(2+) ) act as second messengers in intracellular signaling. Ca(2+) pumps, channels, sensors, and calcium binding proteins, regulate the concentrations of intracellular Ca(2+) as a key regulator of important cellular processes such as gene expression, proliferation, differentiation, DNA repair, apoptosis, metastasis, and hormone secretion. Intracellular Ca(2+) also influences the functions of several organelles, that include: the endoplasmic reticulum, mitochondria, the Golgi, and cell membrane both in normal and breast cancer cells...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150526/the-devil-is-in-the-domain-understanding-protein-recognition-of-multiple-rna-targets
#2
REVIEW
Glen R Gronland, Andres Ramos
RNA regulation provides a finely tuned and highly co-ordinated control of gene expression. Regulation is mediated by hundreds to thousands of multi-functional RNA-binding proteins which often interact with large sets of RNAs. In this brief review, we focus on a recent work that highlights how the proteins use multiple RNA-binding domains to interact selectively with the different RNA targets. Deconvoluting the molecular complexity of the RNA regulatory network is essential to understanding cell differentiation and function, and requires accurate models for protein-RNA recognition and protein target selectivity...
November 17, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/29150295/paternal-transmission-of-early-life-traumatization-through-epigenetics-do-fathers-play-a-role
#3
Enrique d'Harcourt Rowold, Lara Schulze, Sandra Van der Auwera, Hans Jörgen Grabe
Traumatizing events are known to have consequences for the victim which may lead to the development of several well-known mental disorders. Recent research has shown that traumatic events may affect not only the victims' lives, but also that of their progeny. It is generally accepted that this transmission of trauma occurs through parental behavior; however as has been recently discovered, the effects of trauma may also be inherited due to induced alterations in gene expression. These changes, so called epigenetic modifications, illuminate the interaction between genes and the environment...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29149895/novel-insights-into-chromosomal-conformations-in-cancer
#4
REVIEW
Ruobing Jia, Peiwei Chai, He Zhang, Xianqun Fan
Exploring gene function is critical for understanding the complexity of life. DNA sequences and the three-dimensional organization of chromatin (chromosomal interactions) are considered enigmatic factors underlying gene function, and interactions between two distant fragments can regulate transactivation activity via mediator proteins. Thus, a series of chromosome conformation capture techniques have been developed, including chromosome conformation capture (3C), circular chromosome conformation capture (4C), chromosome conformation capture carbon copy (5C), and high-resolution chromosome conformation capture (Hi-C)...
November 17, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/29149573/the-intrinsic-genetic-and-epigenetic-regulator-factors-as-therapeutic-targets-and-the-effect-on-fetal-globin-gene-expression
#5
Pegah Adelvand, Mohammed Hamid, Soroush Sardari
Introduction The effort to induce fetal globin or Hb F gene expression as an alternative therapy for blood transfusion has been ongoing for few decades, with promising results evident in patients with hemoglobinopathies. Although the clinical outcomes have been satisfactory and significant, there are still concerns about the safety of Hb F inducers in the long-term. There are potent inducers which lose their potency and safety over the course of therapy. Area Covered: In this work, efforts have been made to review the latest findings on intrinsic genetic and epigenetic factors which are able to induce the gene expression of fetal globin in adult patients with beta (β)-thalassemia Major, Intermedia and sickle cell disease (SCD)...
November 17, 2017: Expert Review of Hematology
https://www.readbyqxmd.com/read/29149404/the-translational-controlled-tumour-protein-tctp-biological-functions-and-regulation
#6
Ulrich-Axel Bommer
The Translational Controlled Tumour Protein TCTP (gene symbol TPT1, also called P21, P23, Q23, fortilin or histamine-releasing factor, HRF) is a highly conserved protein present in essentially all eukaryotic organisms and involved in many fundamental cell biological and disease processes. It was first discovered about 35 years ago, and it took an extended period of time for its multiple functions to be revealed, and even today we do not yet fully understand all the details. Having witnessed most of this history, in this chapter, I give a brief overview and review the current knowledge on the structure, biological functions, disease involvements and cellular regulation of this protein...
2017: Results and Problems in Cell Differentiation
https://www.readbyqxmd.com/read/29149101/how-does-p53-induce-apoptosis-and-how-does-this-relate-to-p53-mediated-tumour-suppression
#7
REVIEW
Brandon J Aubrey, Gemma L Kelly, Ana Janic, Marco J Herold, Andreas Strasser
The tumour suppressor gene TP53 is mutated in ~50% of human cancers. In addition to its function in tumour suppression, p53 also plays a major role in the response of malignant as well as nontransformed cells to many anticancer therapeutics, particularly those that cause DNA damage. P53 forms a homotetrameric transcription factor that is reported to directly regulate ~500 target genes, thereby controlling a broad range of cellular processes, including cell cycle arrest, cell senescence, DNA repair, metabolic adaptation and cell death...
November 17, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29149090/computational-methods-for-modeling-aptamers-and-designing-riboswitches
#8
REVIEW
Sha Gong, Yanli Wang, Zhen Wang, Wenbing Zhang
Riboswitches, which are located within certain noncoding RNA region perform functions as genetic "switches", regulating when and where genes are expressed in response to certain ligands. Understanding the numerous functions of riboswitches requires computation models to predict structures and structural changes of the aptamer domains. Although aptamers often form a complex structure, computational approaches, such as RNAComposer and Rosetta, have already been applied to model the tertiary (three-dimensional (3D)) structure for several aptamers...
November 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29149060/epigenetic-regulation-of-viral-biological-processes
#9
REVIEW
Lata Balakrishnan, Barry Milavetz
It is increasingly clear that DNA viruses exploit cellular epigenetic processes to control their life cycles during infection. This review will address epigenetic regulation in members of the polyomaviruses, adenoviruses, human papillomaviruses, hepatitis B, and herpes viruses. For each type of virus, what is known about the roles of DNA methylation, histone modifications, nucleosome positioning, and regulatory RNA in epigenetic regulation of the virus infection will be discussed. The mechanisms used by certain viruses to dysregulate the host cell through manipulation of epigenetic processes and the role of cellular cofactors such as BRD4 that are known to be involved in epigenetic regulation of host cell pathways will also be covered...
November 17, 2017: Viruses
https://www.readbyqxmd.com/read/29148977/the-role-of-micrornas-in-chronic-respiratory-disease-recent-insights
#10
Lindsay R Stolzenburg, Ann Harris
Chronic respiratory diseases encompass a group of diverse conditions affecting the airways, which all impair lung function over time. They include cystic fibrosis, idiopathic pulmonary fibrosis, chronic obstructive pulmonary disease, and asthma, which together affect hundreds of millions of people worldwide. MicroRNAs (miRNAs), a class of small non-coding RNAs involved in post-transcriptional gene repression, are now recognized as major regulators in the development and progression of chronic lung disease. Alterations in miRNA abundance occur in lung tissue, inflammatory cells, and freely circulating in blood and are thought to function both as drivers and modifiers of disease...
November 27, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/29148236/emerging-roles-of-er-stress-in-the-aetiology-and-pathogenesis-of-alzheimer-s-disease
#11
REVIEW
Yannis Gerakis, Claudio Hetz
Alzheimer's disease (AD) is a progressive neurodegenerative disease characterized by synaptic dysfunction and accumulation of abnormal aggregates formed by amyloid-β peptides or phophorylated Tau proteins. Accumulating evidence suggests that alterations in the buffering capacity of the proteostasis network is a salient feature of AD. The endoplasmic reticulum (ER) is the main compartment involved in protein folding and secretion and is drastically affected in AD neurons. ER stress triggers the activation of the Unfolded Protein Response (UPR), a signal transduction pathway that enforces adaptive programs to recover homeostasis or trigger apoptosis of irreversibly damaged cells...
November 17, 2017: FEBS Journal
https://www.readbyqxmd.com/read/29147911/dj-1-as-a-therapeutic-target-against-cancer
#12
Ji Cao, Xiaobing Chen, Meidan Ying, Qiaojun He, Bo Yang
DJ-1 is a gene involved in various cellular processes, including transcriptional regulation, oxidative stress response, fertilization, mitochondrial regulation, inflammatory and fibrogenic niche formation, and glycation damage prevention. Although a disease-associated genetic study within the past decade has demonstrated that the mutation of DJ-1 is associated with autosomal early-onset Parkinson's disease, increasing evidence suggests that DJ-1 also plays a critical role in tumor development and progression...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29147905/transcriptional-regulation-of-dj-1
#13
Kazuko Takahashi-Niki, Takeshi Niki, Sanae M M Iguchi-Ariga, Hiroyoshi Ariga
DJ-1 is an oncogene and also a causative gene for familial Parkinson's disease. DJ-1 has various functions, and the oxidative status of a cysteine residue at position 106 (C106) is crucial for determination of the activation level of DJ-1.DJ-1 binds to many proteins, including various transcription factors, and acts as a coactivator or corepressor for regulating their target genes without direct binding to DNA, thereby affecting various cell functions. DJ-1-regulating transcription factors and their modified proteins are the androgen receptor and its regulatory proteins, p53; polypyrimidine tract-binding protein-associated splicing factor (PSF); Keap1, an inhibitor for nuclear factor erythroid2-related factor 2 (Nrf2); sterol regulatory element-binding protein (SREBP); Ras-responsive element-binding protein (RREB1); signal transducer and activator of transcription 1 (STAT1); and Nurr1...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29147648/molecular-crosstalking-among-noncoding-rnas-a-new-network-layer-of-genome-regulation-in-cancer
#14
REVIEW
Marco Ragusa, Cristina Barbagallo, Duilia Brex, Angela Caponnetto, Matilde Cirnigliaro, Rosalia Battaglia, Davide Barbagallo, Cinzia Di Pietro, Michele Purrello
Over the past few years, noncoding RNAs (ncRNAs) have been extensively studied because of the significant biological roles that they play in regulation of cellular mechanisms. ncRNAs are associated to higher eukaryotes complexity; accordingly, their dysfunction results in pathological phenotypes, including cancer. To date, most research efforts have been mainly focused on how ncRNAs could modulate the expression of protein-coding genes in pathological phenotypes. However, recent evidence has shown the existence of an unexpected interplay among ncRNAs that strongly influences cancer development and progression...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/29147078/long-noncoding-rnas-as-a-key-player-in-hepatocellular-carcinoma
#15
REVIEW
Mrigaya Mehra, Ranjit Chauhan
Hepatocellular carcinoma (HCC) is a major malignancy in the liver and has emerged as one of the main cancers in the world with a high mortality rate. However, the molecular mechanisms of HCC are still poorly understood. Long noncoding RNAs (lncRNAs) have recently come to the forefront as functional non-protein-coding RNAs that are involved in a variety of cellular processes ranging from maintaining the structural integrity of chromosomes to gene expression regulation in a spatiotemporal manner. Many recent studies have reported the involvement of lncRNAs in HCC which has led to a better understanding of the underlying molecular mechanisms operating in HCC...
2017: Biomarkers in Cancer
https://www.readbyqxmd.com/read/29146581/long-noncoding-rnas-emerging-players-in-thyroid-cancer-pathogenesis
#16
Avaniyapuram Kannan Murugan, Munirajan Arasambattu Kannan, Ali S Alzahrani
Thyroid cancer continues to be the most common malignancy of endocrine glands. The incidence of thyroid cancer rises significantly over the past 4 decades and emerges as a major health issue. In recent years, a significant progress has been achieved in our understanding of molecular mechanisms of thyroid carcinogenesis, resulting in significant diagnostic, prognostic and therapeutic implications; yet, it has not reached a satisfactory level. Identifying novel molecular therapeutic targets and molecules for diagnosis and prognosis are expected to advance the overall management of this common malignancy...
November 16, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/29146555/extranuclear-signaling-by-sex-steroid-receptors-and-clinical-implications-in-breast-cancer
#17
REVIEW
Viroj Boonyaratanakornkit, Nalo Hamilton, Diana C Márquez-Garbán, Prangwan Pateetin, Eileen M McGowan, Richard J Pietra
Estrogen and progesterone, play essential roles in the development and progression of breast cancer. Over 70% of breast cancers express estrogen receptors (ER) and progesterone receptors (PR), emphasizing the need for better understanding of ER and PR signaling. ER and PR are traditionally viewed as transcription factors and directly bind DNA to regulate gene networks. In addition to nuclear signaling, ER and PR mediate hormone-induced, rapid extranuclear signaling at the cell membrane or in the cytoplasm which initiates downstream signaling to regulate either rapid or extended cellular responses...
November 13, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/29146235/macrophages-their-role-activation-and-polarization-in-pulmonary-diseases
#18
REVIEW
Shweta Arora, Kapil Dev, Beamon Agarwal, Pragnya Das, Mansoor Ali Syed
Macrophages, circulating in the blood or concatenated into different organs and tissues constitute the first barrier against any disease. They are foremost controllers of both innate and acquired immunity, healthy tissue homeostasis, vasculogenesis and congenital metabolism. Two hallmarks of macrophages are diversity and plasticity due to which they acquire a wobbling array of phenotypes. These phenotypes are appropriately synchronized responses to a variety of different stimuli from either the tissue microenvironment or - microbes or their products...
November 12, 2017: Immunobiology
https://www.readbyqxmd.com/read/29145976/not-only-p-glycoprotein-amplification-of-the-abcb1-containing-chromosome-region-7q21-confers-multidrug-resistance-upon-cancer-cells-by-coordinated-overexpression-of-an-assortment-of-resistance-related-proteins
#19
Ilaria Genovese, Andrea Ilari, Yehuda G Assaraf, Francesco Fazi, Gianni Colotti
The development of drug resistance continues to be a dominant hindrance toward curative cancer treatment. Overexpression of a wide-spectrum of ATP-dependent efflux pumps, and in particular of ABCB1 (P-glycoprotein or MDR1) is a well-known resistance mechanism for a plethora of cancer chemotherapeutics including for example taxenes, anthracyclines, Vinca alkaloids, and epipodopyllotoxins, demonstrated by a large array of published papers, both in tumor cell lines and in a variety of tumors, including various solid tumors and hematological malignancies...
May 2017: Drug Resistance Updates: Reviews and Commentaries in Antimicrobial and Anticancer Chemotherapy
https://www.readbyqxmd.com/read/29145694/engineered-and-natural-promoters-and-chromatin-modifying-elements-for-recombinant-protein-expression-in-cho-cells
#20
REVIEW
Nadiya Romanova, Thomas Noll
Promoters play a pivotal role in integrating and processing the signals related to transcription initiation. Strong natural viral promoters, such as hCMV or SV40E, have been routinely employed to achieve a high rate of gene expression in ubiquitously used Chinese hamster ovary (CHO) cells. However, viral promoters are susceptible to epigenetic silencing and lack precise regulation levers. This has paved the way to more sensible control elements: endogenous, inducible and synthetic promoters. In this review we summarise and discuss the use of natural viral, mammalian and endogenous promoters, as well as recent advances in synthetic promoters and inducible systems for protein expression in CHO cells...
November 16, 2017: Biotechnology Journal
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