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https://www.readbyqxmd.com/read/28651171/the-relevance-of-inter-and-intrastrain-differences-in-mice-and-rats-and-their-implications-for-models-of-seizures-and-epilepsy
#1
REVIEW
Wolfgang Löscher, Russell J Ferland, Thomas N Ferraro
It is becoming increasingly clear that the genetic background of mice and rats, even in inbred strains, can have a profound influence on measures of seizure susceptibility and epilepsy. These differences can be capitalized upon through genetic mapping studies to reveal genes important for seizures and epilepsy. However, strain background and particularly mixed genetic backgrounds of transgenic animals need careful consideration in both the selection of strains and in the interpretation of results and conclusions...
June 23, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28649789/beyond-mitf-multiple-transcription-factors-directly-regulate-the-cellular-phenotype-in-melanocytes-and-melanoma
#2
REVIEW
Hannah E Seberg, Eric Van Otterloo, Robert A Cornell
MITF governs multiple steps in the development of melanocytes, including specification from neural crest, growth, survival, and terminal differentiation. In addition, the level of MITF activity determines the phenotype adopted by melanoma cells, whether invasive, proliferative, or differentiated. However, MITF does not act alone. Here we review literature on the transcription factors that co-regulate MITF-dependent genes. ChIP-seq studies have indicated that the transcription factors SOX10, YY1, and TFAP2A co-occupy subsets of regulatory elements bound by MITF in melanocytes...
June 26, 2017: Pigment Cell & Melanoma Research
https://www.readbyqxmd.com/read/28649363/genetic-and-epigenetic-control-of-gene-expression-by-crispr-cas-systems
#3
REVIEW
Albert Lo, Lei Qi
The discovery and adaption of bacterial clustered regularly interspaced short palindromic repeats (CRISPR)-CRISPR-associated (Cas) systems has revolutionized the way researchers edit genomes. Engineering of catalytically inactivated Cas variants (nuclease-deficient or nuclease-deactivated [dCas]) combined with transcriptional repressors, activators, or epigenetic modifiers enable sequence-specific regulation of gene expression and chromatin state. These CRISPR-Cas-based technologies have contributed to the rapid development of disease models and functional genomics screening approaches, which can facilitate genetic target identification and drug discovery...
2017: F1000Research
https://www.readbyqxmd.com/read/28649178/hotair-a-key-regulator-in-gynecologic-cancers
#4
REVIEW
Jing Li, Jing Wang, Yan Zhong, Ruixia Guo, Danxia Chu, Haifeng Qiu, Zhongfu Yuan
Long non-coding RNAs (lncRNAs) play critical roles in the initiation and progression of human cancers. HOX transcript antisense RNA (HOTAIR) is an lncRNA localized to the mammalian HOXC gene cluster; it can interact with polycomb repressive complex 2 and the lysine-specific histone demethylase/CoREST/REST complex, and it manipulates the expression of various genes. HOTAIR promotes tumor invasion and metastasis by silencing tumor suppressors, and activating oncogenes and signaling pathways. HOTAIR is deregulated in many human cancers; despite its critical roles in health and disease, the underlying mechanisms governing HOTAIR function are unknown...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/28648941/low-grade-fibromyxoid-sarcoma-clinical-morphologic-and-genetic-features
#5
REVIEW
Mustafa Mohamed, Cyril Fisher, Khin Thway
Low-grade fibromyxoid sarcoma (LGFMS) is a bland spindle cell neoplasm that typically arises in the deep soft tissues of the proximal extremities or trunk of young adults. The majority of LGFMS are characterized by a recurrent (7;16)(q34;p11) translocation, resulting in the FUS-CREB3L2 fusion gene, which generates a chimeric protein with transcriptional regulatory activity. Small numbers harbor a FUS-CREB3L1 fusion resulting from t(11;16)(p11;p11), whilst rare cases harbor the EWSR1-CREB3L1 fusion. LGFMS is of low to moderate cellularity and consists of bland spindle cells with small, angulated nuclei and scant, wispy cytoplasm, arranged in a whorled growth pattern and typically showing abrupt transition from myxoid to fibrous areas...
June 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28648509/pendred-syndrome
#6
REVIEW
Jean-Louis Wémeau, Peter Kopp
Pendred syndrome is an autosomal recessive disorder that is classically defined by the combination of sensorineural deafness/hearing impairment, goiter, and an abnormal organification of iodide with or without hypothyroidism. The hallmark of the syndrome is the impaired hearing, which is associated with inner ear malformations such as an enlarged vestibular aqueduct (EVA). The thyroid phenotype is variable and may be modified by the nutritional iodine intake. Pendred syndrome is caused by biallelic mutations in the SLC26A4/PDS gene, which encodes the multifunctional anion exchanger pendrin...
March 2017: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/28648147/functional-roles-of-ctcf-in-breast-cancer
#7
Sumin Oh, Chaeun Oh, Kyung Hyun Yoo
CTCF, Zn-finger protein, has been identified as multifunctional transcription factor to regulate gene expression through recruitment of other co-activators and binding to promoter regions of target genes. Furthermore, it has been proposed as an insulator protein that contributes to the establishment of functional three-dimensional chromatin structures. It could disrupt transcription through block the connection between enhancer and promoter. Previous studies revealed that various diseases including breast cancer were developed from aberrant expression of CTCF itself or their target genes...
June 26, 2017: BMB Reports
https://www.readbyqxmd.com/read/28647757/arbuscular-mycorrhiza-effects-on-plant-performance-under-osmotic-stress
#8
REVIEW
Christian Santander, Ricardo Aroca, Juan Manuel Ruiz-Lozano, Jorge Olave, Paula Cartes, Fernando Borie, Pablo Cornejo
At present, drought and soil salinity are among the most severe environmental stresses that affect the growth of plants through marked reduction of water uptake which lowers water potential, leading to osmotic stress. In general, osmotic stress causes a series of morphological, physiological, biochemical, and molecular changes that affect plant performance. Several studies have found that diverse types of soil microorganisms improve plant growth, especially when plants are under stressful conditions. Most important are the arbuscular mycorrhizal fungi (AMF) which form arbuscular mycorrhizas (AM) with approximately 80% of plant species and are present in almost all terrestrial ecosystems...
June 25, 2017: Mycorrhiza
https://www.readbyqxmd.com/read/28646613/novel-tmc8-splice-site-mutation-in-epidermodysplasia-verruciformis-and-review-of-hpv-infections-in-patients-with-the-disease
#9
E Imahorn, Z Yüksel, I Spoerri, G Gürel, C Imhof, Z N Saraçoğlu, A E Koku Aksu, P L Rady, S K Tyring, W Kempf, P H Itin, B Burger
BACKGROUND: Epidermodysplasia verruciformis (EV) is a genodermatosis leading to infections with cutaneous HPV, persistent plane warts and a high rate of non-melanoma skin cancer (NMSC). Biallelic loss-of-function mutations in TMC6 and TMC8 are known to be causative. OBJECTIVE: The aim of this study was to report EV-causing mutations in four patients with EV and to give an overview of all described EV patients. PATIENTS AND METHODS: We investigated four patients with classical features of EV from two families...
June 24, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28646556/injury-induced-maladaption-and-dysregulation-of-calcium-channel-alpha-2-delta-subunit-proteins-and-its-contribution-to-neuropathic-pain-development
#10
REVIEW
Nian Gong, John Park, Z David Luo
Voltage gated calcium channels (VGCCs) play important roles in physiological functions including modulations of neurotransmitter release, neuronal network activities, intracellular signaling pathways, and gene expression. Some pathological conditions, including nerve injuries, can cause dysregulation of VGCCs and their subunits. This in turn can lead to functional maladaption of VGCCs and their subunits, which can contribute to development of disorders such as pain sensations. This review summarized recent findings related to maladaptive changes of dysregulated VGCC alpha-2-delta-1 subunit (Cav α2 δ1 ) with a focus on exploration of mechanisms underlying contribution of Cav α2 δ1 to pain signal transduction...
June 23, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28646339/roles-of-non-coding-rnas-in-respiratory-syncytial-virus-rsv-infection
#11
Ralph A Tripp, Abhijeet A Bakre
Analysis of host gene expression profiles following viral infections of target cells/tissues can reveal crucial insights into the host: virus interaction and enables the development of novel therapeutics and prophylactics. Regions of the host genome that do not code for protein, encode structural, and functional non-coding RNAs that are important not only in regulation of host gene expression but also may impact viral replication. This review summarizes the role of host non-coding RNAs during replication of multiple respiratory viruses with a focus on Respiratory Syncytial Virus (RSV), an important pediatric pathogen...
June 24, 2017: Current Topics in Microbiology and Immunology
https://www.readbyqxmd.com/read/28645852/g0s2-a-small-giant-controller-of-lipolysis-and-adipose-liver-fatty-acid-flux
#12
REVIEW
Xiaodong Zhang, Bradlee L Heckmann, Latoya E Campbell, Jun Liu
The discovery of adipose triglyceride lipase (ATGL) and its coactivator comparative gene identification-58 (CGI-58) provided a major paradigm shift in the understanding of intracellular lipolysis in both adipocytes and nonadipocyte cells. The subsequent discovery of G0/G1 switch gene 2 (G0S2) as a potent endogenous inhibitor of ATGL revealed a unique mechanism governing lipolysis and fatty acid (FA) availability. G0S2 is highly conserved in vertebrates, and exhibits cyclical expression pattern between adipose tissue and liver that is critical to lipid flux and energy homeostasis in these two tissues...
June 20, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28645641/homogenizing-bacterial-cell-factories-analysis-and-engineering-of-phenotypic-heterogeneity
#13
REVIEW
Dennis Binder, Thomas Drepper, Karl-Erich Jaeger, Frank Delvigne, Wolfgang Wiechert, Dietrich Kohlheyer, Alexander Grünberger
In natural habitats, microbes form multispecies communities that commonly face rapidly changing and highly competitive environments. Thus, phenotypic heterogeneity has evolved as an innate and important survival strategy to gain an overall fitness advantage over cohabiting competitors. However, in defined artificial environments such as monocultures in small- to large-scale bioreactors, cell-to-cell variations are presumed to cause reduced production yields as well as process instability. Hence, engineering microbial production toward phenotypic homogeneity is a highly promising approach for synthetic biology and bioprocess optimization...
June 20, 2017: Metabolic Engineering
https://www.readbyqxmd.com/read/28645300/bacterial-ghosts-as-adjuvants-mechanisms-and-potential
#14
REVIEW
Irshad A Hajam, Pervaiz A Dar, Gayeon Won, John Hwa Lee
Bacterial ghosts (BG) are empty cell envelopes derived from Gram-negative bacteria. They contain many innate immunostimulatory agonists, and are potent activators of a broad range of cell types involved in innate and adaptive immunity. Several considerable studies have demonstrated the effectiveness of BG as adjuvants as well as their ability to induce proinflammatory cytokine production by a range of immune and non-immune cell types. These proinflammatory cytokines trigger a generalized recruitment of T and B lymphocytes to lymph nodes that maximize the chances of encounter with their cognate antigen, and subsequent elicitation of potent immune responses...
June 24, 2017: Veterinary Research
https://www.readbyqxmd.com/read/28645240/engineered-expression-of-broadly-neutralizing-antibodies-against-human-immunodeficiency-virus
#15
Maham Ahmad, Osama M Ahmed, Bruce Schnepp, Philip R Johnson
This review discusses recent progress made in developing a vaccine and novel treatments for human immunodeficiency virus (HIV). It highlights the shortcomings of the RV144 vaccination trial [ALVAC-HIV (vCP1521) and AIDSVAX B/E] and the current standard of care and proposes that engineered expression of broadly neutralizing antibodies (bNAbs) against HIV-1 could overcome these shortcomings. Current developments in three major lines of research on HIV prevention and treatment using bNAbs are reviewed: firstly, the use of sequential immunogens to activate B cells to express bNAbs; secondly, the delivery of novel and extremely potent bNAbs through passive administration; and finally, the use of gene transfer using adeno-associated viral vectors to deliver bNAbs...
June 23, 2017: Annual Review of Virology
https://www.readbyqxmd.com/read/28645233/adaptation-to-the-host-environment-by-plant-pathogenic-fungi
#16
H Charlotte van der Does, Martijn Rep
Many fungi can live both saprophytically and as endophyte or pathogen inside a living plant. In both environments, complex organic polymers are used as sources of nutrients. Propagation inside a living host also requires the ability to respond to immune responses of the host. We review current knowledge of how plant-pathogenic fungi do this. First, we look at how fungi change their global gene expression upon recognition of the host environment, leading to secretion of effectors, enzymes, and secondary metabolites; changes in metabolism; and defense against toxic compounds...
June 23, 2017: Annual Review of Phytopathology
https://www.readbyqxmd.com/read/28645180/alcohol-metabolism-and-oesophageal-cancer-a-systematic-review-of-the-evidence
#17
Marco Matejcic, M J Gunter, Pietro Ferrari
Alcohol is a major risk factor for oesophageal squamous cell carcinoma (OSCC), the most prevalent histological subtype of oesophageal cancer (OC) worldwide. The metabolism of alcohol is regulated by specific enzymes whose activity and expression is influenced by genetic polymorphisms. We conducted a systematic review of current epidemiological evidence of the relationship between alcohol intake and OC risk, including the role of tobacco smoking and functional polymorphisms of dehydrogenases (ADHs) and aldehyde dehydrogenases (ALDHs)...
June 22, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28644920/genome-scale-metabolic-models-applied-to-human-health-and-disease
#18
REVIEW
Daniel J Cook, Jens Nielsen
Advances in genome sequencing, high throughput measurement of gene and protein expression levels, data accessibility, and computational power have allowed genome-scale metabolic models (GEMs) to become a useful tool for understanding metabolic alterations associated with many different diseases. Despite the proven utility of GEMs, researchers confront multiple challenges in the use of GEMs, their application to human health and disease, and their construction and simulation in an organ-specific and disease-specific manner...
June 23, 2017: Wiley Interdisciplinary Reviews. Systems Biology and Medicine
https://www.readbyqxmd.com/read/28644133/prognostic-value-of-decreased-long-non-coding-rna-tusc7-expression-in-some-solid-tumors-a-systematic-review-and-meta-analysis
#19
Na Li, Meilan Yang, Ke Shi, Wei Li
Accumulating evidences indicated that tumor suppressor candidate 7 (TUSC7) is a putatively tumor suppressor gene in various tumors. We carried out current systematic review and meta-analysis to explore the decreased expression of TUSC7 associate with prognostic and clinicopathological characteristic in cancer patients. A literature collection search in the online electronic databases PubMed, Embase, Web of Science, and CNKI was conducted to obtain eligible studies (up to February 20, 2017). A total of nine studies comprise 757 patients were identified and included in present meta-analysis based on the selection and inclusion criteria...
June 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28643821/non-invasive-approaches-in-the-diagnosis-of-acute-rejection-in-kidney-transplant-recipients-part-i-in-vivo-imaging-methods
#20
REVIEW
Oriane Hanssen, Pauline Erpicum, Pierre Lovinfosse, Paul Meunier, Laurent Weekers, Luaba Tshibanda, Jean-Marie Krzesinski, Roland Hustinx, François Jouret
Kidney transplantation (KTx) represents the best available treatment for patients with end-stage renal disease. Still, full benefits of KTx are undermined by acute rejection (AR). The diagnosis of AR ultimately relies on transplant needle biopsy. However, such an invasive procedure is associated with a significant risk of complications and is limited by sampling error and interobserver variability. In the present review, we summarize the current literature about non-invasive approaches for the diagnosis of AR in kidney transplant recipients (KTRs), including in vivo imaging, gene expression profiling and omics analyses of blood and urine samples...
February 2017: Clinical Kidney Journal
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