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https://www.readbyqxmd.com/read/28822237/beyond-genomics-targeting-the-epigenome-in-diffuse-large-b-cell-lymphoma
#1
REVIEW
Andrea Kühnl, David Cunningham, Ian Chau
After decades of intense research on genetic alterations in cancer and successful implementation of genetically-based targeted therapies, the field of cancer epigenetics is only beginning to be fully recognized. The discovery of frequent mutations in genes modifying the epigenome in diffuse large B-cell lymphoma (DLBCL) has highlighted the outstanding role of epigenetic deregulation in this disease. Identification of epigenetically-driven DLBCL subgroups and development of novel epigenetic drugs have rapidly advanced...
August 9, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28822050/nuances-of-morphology-in-myelodysplastic-diseases-in-the-age-of-molecular-diagnostics
#2
REVIEW
Aaron C Shaver, Adam C Seegmiller
Morphologic dysplasia is an important factor in diagnosis of myelodysplastic syndrome (MDS). However, the role of dysplasia is changing as new molecular genetic and genomic technologies take a more prominent place in diagnosis. This review discusses the role of morphology in the diagnosis of MDS and its interactions with cytogenetic and molecular testing. Recent changes in diagnostic criteria have attempted to standardize approaches to morphologic diagnosis of MDS, recognizing significant inter-observer variability in assessment of dysplasia...
August 18, 2017: Current Hematologic Malignancy Reports
https://www.readbyqxmd.com/read/28821181/conservation-genetics-of-the-cheetah-lessons-learned-and-new-opportunities
#3
Stephen J O'Brien, Warren E Johnson, Carlos A Driscoll, Pavel Dobrynin, Laurie Marker
The dwindling wildlife species of our planet have become a cause célèbre for conservation groups, governments, and concerned citizens throughout the world. The application of powerful new genetic technologies to surviving populations of threatened mammals has revolutionized our ability to recognize hidden perils that afflict them. We have learned new lessons of survival, adaptation, and evolution from viewing the natural history of genomes in hundreds of detailed studies. A single case history of one species, the African cheetah, Acinonyx jubatus, is here reviewed to reveal a long-term story of conservation challenges and action informed by genetic discoveries and insights...
September 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28820000/novel-combination-strategies-for-enhancing-efficacy-of-immune-checkpoint-inhibitors-in-the-treatment-of-metastatic-solid-malignancies
#4
Michael J Flynn, James M G Larkin
Immune-checkpoint inhibitor (ICPI) drugs, which include antibodies against CTLA-4, PD-1 and PD-L1, have been shown to induce durable complete responses in a proportion of patients with particular efficacy demonstrated in both the first line and refractory setting in advanced NSCLC and melanoma. However, these drugs remain effective only in a minority of unselected patients. Areas covered: This review will focus on mechanisms of resistance to ICPI and underline the importance of identification of novel predictive markers of responsiveness...
August 18, 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28819821/anti-pd-1-antibodies-as-a-therapeutic-strategy-in-classical-hodgkin-lymphoma
#5
REVIEW
Michael D Jain, John Kuruvilla
Classical Hodgkin lymphoma (cHL) is defined by malignant Reed-Sternberg (RS) cells that recruit non-malignant immune cells into a supportive tumour microenvironment. In cHL, this is driven, in part, by genomic alterations of the 9p24.1 locus encoding the immune checkpoint ligands PD-L1 and PD-L2. Therapeutic anti-PD-1 antibodies have been developed that competitively inhibit the interaction between PD-1 and its ligands. Clinical trials of anti-PD-1 antibodies in cHL demonstrate high overall response rates but relapses still occur and new clinical challenges exist for toxicity management and response assessment...
August 17, 2017: Drugs
https://www.readbyqxmd.com/read/28819001/epigenomics-and-human-adaptation-to-high-altitude
#6
Colleen Glyde Julian
Over the past decade, major technological and analytical advancements have propelled efforts towards identifying the molecular mechanisms that govern human adaptation to high altitude. Despite remarkable progress with respect to the identification of adaptive genomic signals that are strongly associated with the 'hypoxia-tolerant' physiological characteristics of high-altitude populations, many questions regarding the fundamental biological processes underlying human adaptation remain unanswered. Vital to address these enduring questions will be to determine the role of epigenetic processes, or non-sequence based features of the genome, that are not only critical for the regulation of transcriptional responses to hypoxia but heritable across generations...
August 17, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28818857/modeling-inborn-errors-of-hepatic-metabolism-using-induced-pluripotent-stem-cells
#7
REVIEW
Behshad Pournasr, Stephen A Duncan
Inborn errors of hepatic metabolism are because of deficiencies commonly within a single enzyme as a consequence of heritable mutations in the genome. Individually such diseases are rare, but collectively they are common. Advances in genome-wide association studies and DNA sequencing have helped researchers identify the underlying genetic basis of such diseases. Unfortunately, cellular and animal models that accurately recapitulate these inborn errors of hepatic metabolism in the laboratory have been lacking...
August 17, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28818341/harnessing-the-power-of-genomics-to-secure-the-future-of-seafood
#8
REVIEW
Louis Bernatchez, Maren Wellenreuther, Cristián Araneda, David T Ashton, Julia M I Barth, Terry D Beacham, Gregory E Maes, Jann T Martinsohn, Kristina M Miller, Kerry A Naish, Jennifer R Ovenden, Craig R Primmer, Young Suk Ho, Nina O Therkildsen, Ruth E Withler
Best use of scientific knowledge is required to maintain the fundamental role of seafood in human nutrition. While it is acknowledged that genomic-based methods allow the collection of powerful data, their value to inform fisheries management, aquaculture, and biosecurity applications remains underestimated. We review genomic applications of relevance to the sustainable management of seafood resources, illustrate the benefits of, and identify barriers to their integration. We conclude that the value of genomic information towards securing the future of seafood does not need to be further demonstrated...
August 14, 2017: Trends in Ecology & Evolution
https://www.readbyqxmd.com/read/28817982/current-challenges-in-optimizing-systemic-therapy-for-patients-with-pancreatic-cancer-expert-perspectives-from-the-australian-gastrointestinal-trials-group-with-invited-international-faculty
#9
Eva Segelov, Florian Lordick, David Goldstein, Lorraine A Chantrill, Daniel Croagh, Ben Lawrence, Dirk Arnold, Ian Chau, Radka Obermannova, Timothy Jay Price
Despite recent progress, the outlook for most patients with pancreatic cancer remains poor. There is variation in how patients are managed globally due to differing interpretations of the evidence, partly because studies in this disease are challenging to undertake. This article collates the evidence upon which current best practice is based and offers an expert opinion from an international faculty on how latest developments should influence current treatment paradigms. Areas covered: Optimal chemotherapy for first and subsequent lines of therapy; optimal management of locally advanced, non-metastatic cancer including the role of neoadjuvant chemo(radio)therapy, current evidence for adjuvant chemotherapy, major advances in pancreatic cancer genomics and challenges in supportive care particularly relevant to patients with pancreatic cancer...
August 18, 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/28816567/how-close-are-we-to-implementing-a-genetic-risk-score-for-coronary-heart-disease
#10
Katherine Beaney, Fotios Drenos, Steve E Humphries
Genome-wide association meta-analysis have now identified more than 150 loci where common variants (SNPs) are significantly associated with coronary heart disease (CHD) and CHD end points. Areas Covered: The authors review publications from their own laboratory and published recently where identified CHD risk SNPs are used in combination, and "scaled" by their effect size, to create a "weighted" Genetic risk Score (GRS), which, in combination with an individual's classical CHD risk factors, can be used to identify those at overall low, intermediate and high future risk...
August 17, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/28816391/cytoskeleton-and-nucleoskeleton-involvement-in-processes-of-cytomixis-in-plants
#11
REVIEW
E A Kravets, A I Yemets, Ya B Blume
Cytomixis, is a form of cell-to-cell nuclear migration that involves the interaction of dynamic cytoskeletal components with the nucleus through signalling systems and linker complexes. In cytomixis two known mechanisms can be involved: actomyosin and/or microtubules and their associated motors. Perinuclear actin anchors and determines the direction of nuclear movement. In microsporogenesis cytomixis is probably initiated by a cascade of signals that trigger prophase reorganization of nucleus and cytoskeleton, and is a result of cytoskeletal protein activation, as well as a weakening of mechanisms responsible for anchoring the nucleus...
August 17, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28816078/pathobiology-of-lp-a-in-calcific-aortic-valve-disease
#12
Patrick Mathieu, Benoit J Arsenault, Marie-Chloé Boulanger, Yohan Bossé, Marlys L Koschinsky
Calcific aortic valve disease (CAVD) is the most prevalent heart valve disorder. Gene variant in the LPA gene, which encodes for apolipoprotein(a), has been associated at the genome-wide level with CAVD. The process whereby Lp(a) promotes the development of CAVD is under intensive investigation and recent data have shed important insights into disease biology. In this regard, autotaxin (ATX), a lysophospholipase D, interacts with Lp(a) and promotes the mineralization of the aortic valve. Areas covered: In this paper, we are reviewing the biology of Lp(a) and the latest discoveries about the molecular processes that link this lipoprotein with the development of CAVD including the role of ATX...
August 17, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28816066/stressing-the-epi-genome-dealing-with-ros-in-cancer
#13
Akshay V Bhat, Shainan Hora, Ananya Pal, Sudhakar Jha, Reshma Taneja
SIGNIFICANCE: Growing evidence indicates cross-talk between Reactive oxygen species (ROS) and several key epigenetic processes like DNA methylation, histone modifications and miRNAs in normal physiology and human pathologies including cancer. This review focuses on how ROS-induced oxidative stress, metabolic intermediates and epigenetic processes influence each other in various cancers. Recent Advances: ROS alters chromatin structure and metabolism which impact the epigenetic landscape in cancer cells...
August 17, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28815851/basics-of-genome-editing-technology-and-its-application-in-livestock-species
#14
REVIEW
Bjoern Petersen
In the last decade, the research community has witnessed a blooming of targeted genome editing tools and applications. Novel programmable DNA nucleases such as zinc finger nucleases (ZFNs), transcription activator-like endonucleases (TALENs) and the clustered regularly interspaced short palindromic repeats/Cas9 system (CRISPR/Cas9) possess long recognition sites and are capable of cutting DNA in a very specific manner. These DNA nucleases mediate targeted genetic alterations by enhancing the DNA mutation rate via induction of double-strand breaks at a predetermined genomic site...
August 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28815544/technological-developments-in-lncrna-biology
#15
Sonali Jathar, Vikram Kumar, Juhi Srivastava, Vidisha Tripathi
It is estimated that more than 90% of the mammalian genome is transcribed as non-coding RNAs. Recent evidences have established that these non-coding transcripts are not junk or just transcriptional noise, but they do serve important biological purpose. One of the rapidly expanding fields of this class of transcripts is the regulatory lncRNAs, which had been a major challenge in terms of their molecular functions and mechanisms of action. The emergence of high-throughput technologies and the development in various conventional approaches have led to the expansion of the lncRNA world...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28815536/long-noncoding-rna-genome-organization-and-mechanism-of-action
#16
Vijay Suresh Akhade, Debosree Pal, Chandrasekhar Kanduri
For the last four decades, we have known that noncoding RNAs maintain critical housekeeping functions such as transcription, RNA processing, and translation. However, in the late 1990s and early 2000s, the advent of high-throughput sequencing technologies and computational tools to analyze these large sequencing datasets facilitated the discovery of thousands of small and long noncoding RNAs (lncRNAs) and their functional role in diverse biological functions. For example, lncRNAs have been shown to regulate dosage compensation, genomic imprinting, pluripotency, cell differentiation and development, immune response, etc...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28815535/history-discovery-and-classification-of-lncrnas
#17
Julien Jarroux, Antonin Morillon, Marina Pinskaya
The RNA World Hypothesis suggests that prebiotic life revolved around RNA instead of DNA and proteins. Although modern cells have changed significantly in 4 billion years, RNA has maintained its central role in cell biology. Since the discovery of DNA at the end of the nineteenth century, RNA has been extensively studied. Many discoveries such as housekeeping RNAs (rRNA, tRNA, etc.) supported the messenger RNA model that is the pillar of the central dogma of molecular biology, which was first devised in the late 1950s...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28815532/hepatitis-c-virus-replication
#18
Tetsuro Suzuki
Viruses use synthetic mechanism and organelles of the host cells to facilitate their replication and make new viruses. Host's ATP provides necessary energy. Hepatitis C virus (HCV) is a major cause of liver disease. Like other positive-strand RNA viruses, the HCV genome is thought to be synthesized by the replication complex, which consists of viral- and host cell-derived factors, in tight association with structurally rearranged vesicle-like cytoplasmic membranes. The virus-induced remodeling of subcellular membranes, which protect the viral RNA from nucleases in the cytoplasm, promotes efficient replication of HCV genome...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28815490/generating-genetically-modified-mice-a-decision-guide
#19
Ivo J Huijbers
The generation of a new genetically modified mouse strain is a big hurdle to take for many researchers. It is often unclear which steps and decisions have to be made prior to obtaining the desired mouse model. This review aims to help researchers by providing a decision guide that answers the essential questions that need to be asked before generating the most suitable genetically modified mouse line in the most optimal timeframe. The review includes the latest technologies in both the stem cell culture and gene editing tools, particularly CRISPR/Cas9, and provides compatibility guidelines for selecting among the different types of genetic modifications that can be introduced in the mouse genome and the various routes for introducing these modifications into the mouse germline...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28815209/pathways-to-genome-targeted-therapies-in-serous-ovarian-cancer
#20
Joshua Axelrod, Joe Delaney
Genome sequencing technologies and corresponding oncology publications have generated enormous publicly available datasets for many cancer types. While this has enabled new treatments, and in some limited cases lifetime management of the disease, the treatment options for serous ovarian cancer remain dismal. This review summarizes recent advances in our understanding of ovarian cancer, with a focus on heterogeneity, functional genomics, and actionable data.
July 2017: Journal of Nature and Science
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