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Mammalian Genome: Official Journal of the International Mammalian Genome Society

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https://www.readbyqxmd.com/read/28712062/genome-editing-and-genetic-engineering-in-livestock-for-advancing-agricultural-and-biomedical-applications
#1
Bhanu P Telugu, Ki-Eun Park, Chi-Hun Park
Genetic modification of livestock has a longstanding and successful history, starting with domestication several thousand years ago. Modern animal breeding strategies predominantly based on marker-assisted and genomic selection, artificial insemination, and embryo transfer have led to significant improvement in the performance of domestic animals, and are the basis for regular supply of high quality animal derived food. However, the current strategy of breeding animals over multiple generations to introduce novel traits is not realistic in responding to the unprecedented challenges such as changing climate, pandemic diseases, and feeding an anticipated 3 billion increase in global population in the next three decades...
July 15, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28712061/introduction-to-mammalian-genome-special-issue-genome-editing
#2
EDITORIAL
Lydia Teboul, Yann Hérault, Cynthia Smith, Bruce Whitelaw
No abstract text is available yet for this article.
July 15, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28707022/tldc-proteins-new-players-in-the-oxidative-stress-response-and-neurological-disease
#3
REVIEW
Mattéa J Finelli, Peter L Oliver
Oxidative stress (OS) arises from an imbalance in the cellular redox state, which can lead to intracellular damage and ultimately cell death. OS occurs as a result of normal ageing, but it is also implicated as a common etiological factor in neurological disease; thus identifying novel proteins that modulate the OS response may facilitate the design of new therapeutic approaches applicable to many disorders. In this review, we describe the recent progress that has been made using a range of genetic approaches to understand a family of proteins that share the highly conserved TLDc domain...
July 13, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28677007/modeling-human-disease-in-rodents-by-crispr-cas9-genome-editing
#4
Marie-Christine Birling, Yann Herault, Guillaume Pavlovic
Modeling human disease has proven to be a challenge for the scientific community. For years, generating an animal model was complicated and restricted to very few species. With the rise of CRISPR/Cas9, it is now possible to generate more or less any animal model. In this review, we will show how this technology is and will change our way to obtain relevant disease animal models and how it should impact human health.
July 4, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28653171/editing-mammalian-genomes-ethical-considerations
#5
Andy Greenfield
Genome editing is facilitating the manipulation of genomes on an unprecedented scale. It promises to revolutionize our ability to study gene function and generate models of human genetic disease in a range of organisms, most notably in mammals such as the mouse. Is this new technology likely to be disruptive to our research practices in any way? Will it alter the ways in which we implement the ethical imperatives of the 3Rs? In short, what ethical questions are raised by genome editing of mammals in a biomedical research context?...
June 26, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28634692/crispr-cas-orthologues-and-variants-optimizing-the-repertoire-specificity-and-delivery-of-genome-engineering-tools
#6
Alberto Cebrian-Serrano, Benjamin Davies
Robust and cost-effective genome editing in a diverse array of cells and model organisms is now possible thanks to the discovery of the RNA-guided endonucleases of the CRISPR-Cas system. The commonly used Cas9 of Streptococcus pyogenes shows high levels of activity but, depending on the application, has been associated with some shortcomings. Firstly, the enzyme has been shown to cause mutagenesis at genomic sequences resembling the target sequence. Secondly, the stringent requirement for a specific motif adjacent to the selected target site can limit the target range of this enzyme...
June 20, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28612238/gene-editing-in-birds-takes-flight
#7
Mark E Woodcock, Alewo Idoko-Akoh, Michael J McGrew
The application of gene editing (GE) technology to create precise changes to the genome of bird species will provide new and exciting opportunities for the biomedical, agricultural and biotechnology industries, as well as providing new approaches for producing research models. Recent advances in modifying both the somatic and germ cell lineages in chicken indicate that this species, and conceivably soon other avian species, has joined a growing number of model organisms in the gene editing revolution.
June 13, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28589393/a-history-of-genome-editing-in-mammals
#8
Almudena Fernández, Santiago Josa, Lluis Montoliu
Genome editing is now a routine procedure in many mammalian genetics laboratories. The ostensibly short but intense history of genome-editing approaches illustrates how a disruptive technology can universally colonize a field when this new methodology, conceived to alter mammalian genomes at specific locations, is found to efficiently and robustly deliver results. This review summarizes the early development of genome editing using nucleases, from the pioneering experiments using yeast meganucleases, to the latest prokaryotic nucleases used for precise genome manipulation...
June 6, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28589392/naming-crispr-alleles-endonuclease-mediated-mutation-nomenclature-across-species
#9
Michelle N Knowlton, Cynthia L Smith
The widespread use of CRISPR/Cas and other targeted endonuclease technologies in many species has led to an explosion in the generation of new mutations and alleles. The ability to generate many different mutations from the same target sequence either by homology-directed repair with a donor sequence or non-homologous end joining-induced insertions and deletions necessitates a means for representing these mutations in literature and databases. Standardized nomenclature can be used to generate unambiguous, concise, and specific symbols to represent mutations and alleles...
June 6, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28577119/gene-networks-for-total-number-born-in-pigs-across-divergent-environments
#10
Lucas L Verardo, Marcos S Lopes, Pramod Mathur, Ole Madsen, Fabyano F Silva, Martien A M Groenen, Egbert F Knol, Paulo S Lopes, Simone E F Guimarães
For reproductive traits such as total number born (TNB), variance due to different environments is highly relevant in animal breeding. In this study, we aimed to perform a gene-network analysis for TNB in pigs across different environments using genomic reaction norm models. Thus, based on relevant single-nucleotide polymorphisms and linkage disequilibrium blocks across environments obtained from GWAS, different sets of candidate genes having biological roles linked to TNB were identified. Network analysis across environment levels resulted in gene interactions consistent with known mammal's fertility biology, captured relevant transcription factors for TNB biology and pointing out different sets of candidate genes for TNB in different environments...
June 2, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28547032/car8-dorsal-root-ganglion-expression-and-genetic-regulation-of-analgesic-responses-are-associated-with-a-cis-eqtl-in-mice
#11
Roy C Levitt, Gerald Y Zhuang, Yuan Kang, Diana M Erasso, Udita Upadhyay, Mehtap Ozdemir, Eugene S Fu, Konstantinos D Sarantopoulos, Shad B Smith, William Maixner, Luda Diatchenko, Eden R Martin, Tim Wiltshire
Carbonic anhydrase-8 (Car8 mouse gene symbol) is devoid of enzymatic activity, but instead functions as an allosteric inhibitor of inositol trisphosphate receptor-1 (ITPR1) to regulate this intracellular calcium release channel important in synaptic functions and neuronal excitability. Causative mutations in ITPR1 and carbonic anhydrase-8 in mice and humans are associated with certain subtypes of spinal cerebellar ataxia (SCA). SCA mice are genetically deficient in dorsal root ganglia (DRG) Car8 expression and display mechanical and thermal hypersensitivity and susceptibility to subacute and chronic inflammatory pain behaviors...
May 25, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28516231/molecular-evolution-of-type-ii-mage-genes-from-ancestral-maged2-gene-and-their-phylogenetic-resolution-of-basal-mammalian-clades
#12
Marcos De Donato, Sunday O Peters, Tanveer Hussain, Hectorina Rodulfo, Bolaji N Thomas, Masroor E Babar, Ikhide G Imumorin
Type II melanoma-associated antigens (MAGE) are a subgroup of about a dozen proteins found in various locations in the genome and expressed in normal tissues, thus are not related to cancer as the type I MAGE genes. This gene family exists as a single copy in non-mammals and monotremata, but found as two copies in metatherians and occur as a diverse group in all eutherians. Our studies suggest MAGED2 as the ancestor of this subfamily and the most likely evolutionary history of eutherian type II MAGE genes is hereby proposed based on synteny conservation, phylogenetic relations, genome location, homology conservation, and the protein and gene structures...
May 17, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28500484/association-of-folate-metabolism-gene-polymorphisms-and-haplotype-combination-with-pulmonary-embolism-risk-in-chinese-han-population
#13
Xin Li, Ling Weng, Baihe Han, Yingnan Dai, Li Cha, Shujun Yan, Enze Jin
In this study, we aimed to investigate the association of four single nucleotide polymorphisms (SNPs) (MTHFR 677 C > T, MTHFR 1298 A > C, MTR 2756 A > G and MTRR 66 A > G), gene-gene interaction and haplotype combination with pulmonary embolism (PE) risk based on Chinese Han population. Logistic regression was performed to investigate association between four SNPs within folate metabolism gene and PE risk, and GMDR model was used to investigate the additional gene-gene interactions among the four SNPs...
May 12, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28497211/association-of-toll-like-receptor-gene-polymorphisms-and-its-interaction-with-hpv-infection-in-determining-the-susceptibility-of-cervical-cancer-in-chinese-han-population
#14
Ye Jin, Shuang Qiu, Na Shao, Jianhua Zheng
The aim of the study is to investigate the association of several single-nucleotide polymorphisms (SNPs) within Toll-like receptors (TLRs) gene and additional gene-gene and gene-human papillomavirus (HPV) infection interaction with cervical cancer risk. A total of 1262 participants are selected, including 420 cervical cancer patients and 842 control participants. Generalized multifactor dimensionality reduction (GMDR) was used to screen the best interaction combination among five SNPs within TLR gene and HPV infection...
May 11, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28474168/haplotype-analysis-on-relationship-of-ercc2-and-ercc3-gene-polymorphisms-with-osteosarcoma-risk-in-chinese-young-population
#15
Qiang Xu, Zuofu Zhang, Weixue Sun, Baiqiang Hu
The purpose of the study was to investigate the association of single-nucleotide polymorphisms (SNPs) within excision repair cross-complementation (ERCC) gene polymorphisms, additional gene-gene interaction, and haplotype combination with osteosarcoma risk. Generalized multifactor dimensionality reduction (GMDR) was used to screen the best interaction combination among SNPs. Logistic regression was performed to investigate the association between six SNPs within ERCC gene, additional gene-gene interaction on osteosarcoma risk...
May 4, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28283737/mild-reproductive-impact-of-a-y-chromosome-deletion-on-a-c57bl-6j-substrain
#16
Megan M MacBride, Adam Navis, Amar Dasari, Ana V Perez
A recently reported deletion of about 40 Mb in length between 6.12/6.57 and 46.73/47.31 Mb on the Y chromosome long arm of the C57BL/6JBomTac inbred strain made us closely examine the strain's breeding history and reproductive characteristics. We verified that the two copies of Rbm31y that are present inside the putative deletion were indeed deleted. This inbred strain presents an expected litter size for a C57BL/6 substrain. In vitro fertilization (IVF) efficiency and breeding efficiencies are comparable to those of the C57BL/6NTac substrain; however, the male/female sex ratio in the C57BL/6JBomTac is mildly skewed towards females...
June 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28405742/crispr-cas9-mediated-deletion-of-lncrna-gm26878-in-the-distant-foxf1-enhancer-region
#17
Przemyslaw Szafranski, Justyna A Karolak, Denise Lanza, Marzena Gajęcka, Jason Heaney, Paweł Stankiewicz
Recent genome editing techniques, including CRISPR mutagenesis screens, offer unparalleled opportunities to study the regulatory non-coding genomic regions, enhancers, promoters, and functional non-coding RNAs. Heterozygous point mutations in FOXF1 and genomic deletion copy-number variants at chromosomal region 16q24.1 involving FOXF1 or its regulatory region mapping ~300 kb upstream of FOXF1 and leaving it intact have been identified in the vast majority of patients with a lethal neonatal lung disease, alveolar capillary dysplasia with misalignment of pulmonary veins (ACDMPV)...
April 12, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28401291/the-human-retinoblastoma-susceptibility-gene-rb1-an-evolutionary-story-in-primates
#18
Maria C Viana, William C Tavares, Ayslan C Brant, Mariana Boroni, Héctor N Seuánez
The tumor suppressor gene RB1 (Human Retinoblastoma Susceptibility Gene) plays a prominent role in normal development, gene transcription, DNA replication, repair, and mitosis. Its complete biallelic dysfunction in retinoblasts is the main cause of retinoblastoma in the human. Although this gene has been evolutionary conserved, comparisons between the reference and human RB1 coding region with its counterparts in 19 non-human primates showed 359 sites where nucleotide replacements took place during the radiation of these species...
April 11, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28396939/fat-and-carbohydrate-content-in-the-diet-induces-drastic-changes-in-gene-expression-in-young-g%C3%A3-ttingen-minipigs
#19
Caroline M Junker Mentzel, Tainã Figueiredo Cardoso, Annika M J Lex, Dorte Bratbo Sørensen, Merete Fredholm, Susanna Cirera
In human health, there is interest in developing specific diets to reduce body weight. These studies are mainly focused on phenotypic changes induced in blood measurements, i.e., triglycerides, HDL, LDL, and insulin, and on physical changes, i.e., body weight and BMI. To evaluate the biological impact of diet interventions, it is very important to investigate the molecular mechanisms driving the diet-induced phenotypic changes in relevant tissues. However, studying these effects in humans is difficult due to ethical concerns in doing interventions and obtaining tissue samples and good animal models are therefore needed...
April 10, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28378063/bridging-the-gap-large-animal-models-in-neurodegenerative-research
#20
REVIEW
S L Eaton, T M Wishart
The world health organisation has declared neurological disorders as one of the greatest public health risks in the world today. Yet, despite this growing concern, the mechanisms underpinning many of these conditions are still poorly understood. This may in part be due to the seemingly diverse nature of the initiating insults ranging from genetic (such as the Ataxia's and Lysosomal storage disorders) through to protein misfolding and aggregation (i.e. Prions), and those of a predominantly unknown aetiology (i...
April 4, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
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