keyword
MENU ▼
Read by QxMD icon Read
search

Genetic mouse model

keyword
https://www.readbyqxmd.com/read/27913859/complex-genetics-architecture-contributes-to-salmonella-resistance-in-acb60-mice
#1
Sean Beatty, Leïla Rached-D'Astous, Danielle Malo
Human infection with Salmonella is of global public health concern. In low- and middle-income countries, Salmonella infection is a major source of disease in terms of both mortality and morbidity, while in high-income nations, the pathogen is an ongoing threat to food security. The outcome of infection with Salmonella enterica serovar Typhimurium (Salmonella Typhimurium) in mouse models is dependent upon a coordinated and complex immune response. A panel of recombinant congenic strains (RCS) derived from the reciprocal double backcross of A/J and C57BL/6J mice has been screened for their susceptibility to Salmonella infection, and the RCS AcB60 was identified to be the most resistant strain to Salmonella infection, more resistant than the parental strain A/J...
December 2, 2016: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/27913616/genetic-contributors-to-intergenerational-cag-repeat-instability-in-huntington-s-disease-knock-in-mice
#2
João Luís Neto, Jong-Min Lee, Ali Afridi, Tammy Gillis, Jolene R Guide, Stephani Dempsey, Brenda Lager, Isabel Alonso, Vanessa C Wheeler, Ricardo Mouro Pinto
Huntington's disease is a neurodegenerative disorder caused by the expansion of a CAG trinucleotide repeat in exon 1 of the HTT gene. Longer repeat sizes are associated with increased disease penetrance and earlier ages of onset. Intergenerationally unstable transmissions are common in Huntington's disease families, partly underlying the genetic anticipation seen in this disorder. Huntington's disease CAG knock-in mouse models also exhibit a propensity for intergenerational repeat size changes. In this work, we examine intergenerational instability of the CAG repeat in over 20,000 transmissions in the largest Huntington's disease knock-in mouse model breeding datasets reported to date...
December 2, 2016: Genetics
https://www.readbyqxmd.com/read/27913108/chicken-line-dependent-mortality-after-experimental-infection-with-three-type-iixiii-recombinant-toxoplasma-gondii-clones
#3
G Schares, D C Herrmann, P Maksimov, B Matzkeit, F J Conraths, G Moré, R Preisinger, S Weigend
Three genetically different clones of Toxoplasma gondii, also different in mouse virulence, were studied by experimental infection in chickens. For the experiments, four chicken lines were used, which differed in phylogenetic origin and performance level: two white egg layer lines, one with high laying performance (WLA), one with low (R11) and two brown layer lines, also displaying high (BLA) and low (L68) egg number. Chickens were intraperitoneally infected with three different T. gondii isolates representing type IIxIII recombinant clones, i...
November 29, 2016: Experimental Parasitology
https://www.readbyqxmd.com/read/27912148/anti-cancer-effect-of-lactic-acid-bacteria-expressing-antioxidant-enzymes-or-il-10-in-a-colorectal-cancer-mouse-model
#4
Silvina Del Carmen, Alejandra de Moreno de LeBlanc, Romina Levit, Vasco Azevedo, Philippe Langella, Luis G Bermúdez-Humarán, Jean Guy LeBlanc
The association between inflammatory bowel diseases and colorectal cancer is well documented. The genetic modification of lactic acid bacteria as a tool to increase the anti-inflammatory potential of these microorganisms has also been demonstrated. Thus the aim of the present work was to evaluate the anti-cancer potential of different genetically modified lactic acid bacteria (GM-LAB) producing antioxidant enzymes (catalase or superoxide dismutase) or the anti-inflammatory cytokine IL-10 (protein or DNA delivery) using a chemical induced colon cancer murine model...
November 29, 2016: International Immunopharmacology
https://www.readbyqxmd.com/read/27911742/current-perspectives-in-autism-spectrum-disorder-from-genes-to-therapy
#5
Maria Chahrour, Brian J O'Roak, Emanuela Santini, Rodney C Samaco, Robin J Kleiman, M Chiara Manzini
Autism spectrum disorder (ASD) is a constellation of neurodevelopmental presentations with high heritability and both phenotypic and genetic heterogeneity. To date, mutations in hundreds of genes have been associated to varying degrees with increased ASD risk. A better understanding of the functions of these genes and whether they fit together in functional groups or impact similar neuronal circuits is needed to develop rational treatment strategies. We will review current areas of emphasis in ASD research, starting from human genetics and exploring how mouse models of human mutations have helped identify specific molecular pathways (protein synthesis and degradation, chromatin remodeling, intracellular signaling), which are linked to alterations in circuit function and cognitive/social behavior...
November 9, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27911079/trans-acting-epigenetic-effects-of-chromosomal-aneuploidies-lessons-from-down-syndrome-and-mouse-models
#6
Catherine Do, Zhuo Xing, Y Eugene Yu, Benjamin Tycko
An important line of postgenomic research seeks to understand how genetic factors can influence epigenetic patterning. Here we review epigenetic effects of chromosomal aneuploidies, focusing on findings in Down syndrome (DS, trisomy 21). Recent work in human DS and mouse models has shown that the extra chromosome 21 acts in trans to produce epigenetic changes, including differential CpG methylation (DS-DM), in specific sets of downstream target genes, mostly on other chromosomes. Mechanistic hypotheses emerging from these data include roles of chromosome 21-linked methylation pathway genes (DNMT3L and others) and transcription factor genes (RUNX1, OLIG2, GABPA, ERG and ETS2) in shaping the patterns of DS-DM...
December 2, 2016: Epigenomics
https://www.readbyqxmd.com/read/27910899/glial-pannexin1-contributes-to-tactile-hypersensitivity-in-a-mouse-model-of-orofacial-pain
#7
Regina Hanstein, Menachem Hanani, Eliana Scemes, David C Spray
Drug studies in animal models have implicated pannexin1 (Panx1) in various types of pain, including trigeminal hypersensitivity, neuropathic pain and migraine. However, the tested drugs have limited specificity and efficacy so that direct evidence for Panx1 contribution to pain has been lacking. We here show that tactile hypersensitivity is markedly attenuated by deletion of Panx1 in a mouse model of chronic orofacial pain; in this model, trigeminal ganglion Panx1 expression and function are markedly enhanced...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27910071/pi3k-pten-akt-genetic-mouse-models-of-endometrial-carcinoma
#8
Ayesha Joshi, Lora Hedrick Ellenson
The PI3K/PTEN/AKT pathway is the most frequently mutated pathway in endometrial carcinoma. Mouse models are invaluable tools to understand, at the molecular level, the contributions of components of this pathway towards initiation and progression of endometrial carcinoma. This chapter summarizes results of germline and tissue specific knockout mouse models generated to understand how mutations in components of this pathway lead to development of carcinoma and its interactions with other frequently altered pathways like mismatch repair and estrogen signaling...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27909303/conditional-knockout-of-n-wasp-in-mouse-fibroblast-caused-keratinocyte-hyper-proliferation-and-enhanced-wound-closure
#9
Neeraj Jain, Pazhanichamy Kalailingam, Kai Wei Tan, Hui Bing Tan, Ming Keat Sng, Jeremy Soon Kiat Chan, Nguan Soon Tan, Thirumaran Thanabalu
Neural-Wiskott Aldrich Syndrome Protein (N-WASP) is expressed ubiquitously, regulates actin polymerization and is essential during mouse development. We have previously shown that N-WASP is critical for cell-ECM adhesion in fibroblasts. To characterize the role of N-WASP in fibroblast for skin development, we generated a conditional knockout mouse model in which fibroblast N-WASP was ablated using the Cre recombinase driven by Fibroblast Specific Protein promoter (Fsp-Cre). N-WASP(FKO) (N-WASP(fl/fl); Fsp-cre) were born following Mendelian genetics, survived without any visible abnormalities for more than 1 year and were sexually reproductive, suggesting that expression of N-WASP in fibroblast is not critical for survival under laboratory conditions...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27907266/retinal-axon-guidance-at-the-midline-chiasmatic-misrouting-and-consequences
#10
REVIEW
Delphine S Prieur, Alexandra Rebsam
The visual representation of the outside world relies on the appropriate connectivity between the eyes and the brain. Retinal ganglion cells are the sole neurons that send an axon from the retina to the brain, and thus the guidance decisions of retinal axons en route to their targets in the brain shape the neural circuitry that forms the basis of vision. Here, we focus on the choice made by retinal axons to cross or avoid the midline at the optic chiasm. This decision allows each brain hemisphere to receive inputs from both eyes corresponding to the same visual hemifield, and is thus crucial for binocular vision...
December 1, 2016: Developmental Neurobiology
https://www.readbyqxmd.com/read/27903722/adenosine-kinase-deficiency-in-the-brain-results-in-maladaptive-synaptic-plasticity
#11
Ursula S Sandau, Mariana Colino-Oliveira, Abbie Jones, Bounmy Saleumvong, Shayla Q Coffman, Long Liu, Catarina Miranda-Lourenço, Cátia Palminha, Vânia L Batalha, Yiming Xu, Yuqing Huo, Maria J Diógenes, Ana M Sebastião, Detlev Boison
: Adenosine kinase (ADK) deficiency in human patients (OMIM:614300) disrupts the methionine cycle and triggers hypermethioninemia, hepatic encephalopathy, cognitive impairment, and seizures. To identify whether this neurological phenotype is intrinsically based on ADK deficiency in the brain or if it is secondary to liver dysfunction, we generated a mouse model with a brain-wide deletion of ADK by introducing a Nestin-Cre transgene into a line of conditional ADK deficient Adk(fl/fl) mice...
November 30, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27903288/untangling-the-transmission-dynamics-of-primary-and-secondary-vectors-of-trypanosoma-cruzi-in-colombia-parasite-infection-feeding-sources-and-discrete-typing-units
#12
Carolina Hernández, Camilo Salazar, Helena Brochero, Aníbal Teherán, Luz Stella Buitrago, Mauricio Vera, Hugo Soto, Zulibeth Florez-Rivadeneira, Sussane Ardila, Gabriel Parra-Henao, Juan David Ramírez
BACKGROUND: Trypanosoma cruzi is the causative agent of Chagas disease. Due to its genetic diversity has been classified into six Discrete Typing Units (DTUs) in association with transmission cycles. In Colombia, natural T. cruzi infection has been detected in 15 triatomine species. There is scarce information regarding the infection rates, DTUs and feeding preferences of secondary vectors. Therefore, the aim of this study was to determine T. cruzi infection rates, parasite DTU, ecotopes, insect stages, geographical location and bug feeding preferences across six different triatomine species...
December 1, 2016: Parasites & Vectors
https://www.readbyqxmd.com/read/27902734/galectin-7-expression-potentiates-her-2-positive-phenotype-in-breast-cancer
#13
Andrée-Anne Grosset, Françoise Poirier, Louis Gaboury, Yves St-Pierre
HER-2 positive tumors are among the most aggressive subtypes of breast cancer and are frequently associated with metastasis and poor outcome. As with other aggressive subtypes of breast cancer, these tumors are associated with abnormally high expression of galectin-7 (gal-7), which confers metastatic breast tumor cells with increased invasive behavior. Although previous studies in the rat model of breast tumorigenesis have shown that gal-7 is also increased in primary breast tumor, its contribution to the development of the primary breast tumors remains unclear...
2016: PloS One
https://www.readbyqxmd.com/read/27899381/castration-resistance-in-prostate-cancer-is-mediated-by-the-kinase-nek6
#14
Atish D Choudhury, Anna C Schinzel, Maura B Cotter, Rosina T Lis, Katherine Labella, Ying Jie Lock, Francesca Izzo, Isil Guney, Michaela Bowden, Yvonne Y Li, Jinal Patel, Emily Hartman, Steven A Carr, Monica Schenone, Jacob D Jaffe, Philip W Kantoff, Peter S Hammerman, William C Hahn
In prostate cancer, the development of castration resistance is pivotal in progression to aggressive disease. However, understanding of the pathways involved remains incomplete. In this study, we performed a high-throughput genetic screen to identify kinases that enable tumor formation by androgen-dependent prostate epithelial (LHSR-AR) cells under androgen-deprived conditions. In addition to the identification of known mediators of castration resistance, which served to validate the screen, we identified a mitotic-related serine/threonine kinase, NEK6, as a mediator of androgen-independent tumor growth...
November 29, 2016: Cancer Research
https://www.readbyqxmd.com/read/27899315/injury-stimulated-sonic-hedgehog-expression-in-microglia-contributes-to-neuroinflammatory-response-in-the-mptp-model-of-parkinson-s-disease
#15
Jung Hwi Lee, Young Cheul Chung, Eugene Bok, Hankyu Lee, Sue Hee Huh, Ji Eun Lee, Byung Kwan Jin, Hyuk Wan Ko
Parkinson's disease (PD) is a progressive neurodegenerative disorder in which dopamine (DA) neurons in the substantia nigra pars compacta (SNpc) region are selectively destroyed. Sonic hedgehog (Shh) has been well known to play a key role in a variety of processes such as embryogenesis, cell proliferation and protection, and tissue repair during inflammation. However, the evidences for the innate role of Shh in adult brain injury are presently lacking and studies have been needed to unveil the importance of Shh in the process of neurodegeneration...
November 26, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27899218/modeling-myeloproliferative-neoplasms-from-mutations-to-mouse-models-and-back-again
#16
REVIEW
Alessandro Morotti, Stefania Rocca, Giovanna Carrà, Giuseppe Saglio, Mara Brancaccio
Myeloproliferative neoplasms (MPNs) are defined according to the 2008 World Health Organization (WHO) classification and the recent 2016 revision. Over the years, several genetic lesions have been associated with the development of MPNs, with important consequences for identifying unique biomarkers associated with specific neoplasms and for developing targeted therapies. Defining the genotype-phenotype relationship in MPNs is essential to identify driver somatic mutations that promote MPN development and maintenance in order to develop curative targeted therapies...
November 24, 2016: Blood Reviews
https://www.readbyqxmd.com/read/27898092/transposon-mediated-generation-of-cellular-and-mouse-models-of-splicing-mutations-to-assess-the-efficacy-of-snrna-based-therapeutics
#17
Elena Barbon, Mattia Ferrarese, Laetitia van Wittenberghe, Peggy Sanatine, Giuseppe Ronzitti, Fanny Collaud, Pasqualina Colella, Mirko Pinotti, Federico Mingozzi
Disease-causing splicing mutations can be rescued by variants of the U1 small nuclear RNA (U1snRNAs). However, the evaluation of the efficacy and safety of modified U1snRNAs as therapeutic tools is limited by the availability of cellular and animal models specific for a given mutation. Hence, we exploited the hyperactive Sleeping Beauty transposon system (SB100X) to integrate human factor IX (hFIX) minigenes into genomic DNA in vitro and in vivo. We generated stable HEK293 cell lines and C57BL/6 mice harboring splicing-competent hFIX minigenes either wild type (SChFIX-wt) or mutated (SChFIXex5-2C)...
November 29, 2016: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/27897192/pi3-kinase-inhibition-improves-vascular-malformations-in-mouse-models-of-hereditary-haemorrhagic-telangiectasia
#18
Roxana Ola, Alexandre Dubrac, Jinah Han, Feng Zhang, Jennifer S Fang, Bruno Larrivée, Monica Lee, Ana A Urarte, Jan R Kraehling, Gael Genet, Karen K Hirschi, William C Sessa, Francesc V Canals, Mariona Graupera, Minhong Yan, Lawrence H Young, Paul S Oh, Anne Eichmann
Activin receptor-like kinase 1 (ALK1) is an endothelial serine-threonine kinase receptor for bone morphogenetic proteins (BMPs) 9 and 10. Inactivating mutations in the ALK1 gene cause hereditary haemorrhagic telangiectasia type 2 (HHT2), a disabling disease characterized by excessive angiogenesis with arteriovenous malformations (AVMs). Here we show that inducible, endothelial-specific homozygous Alk1 inactivation and BMP9/10 ligand blockade both lead to AVM formation in postnatal retinal vessels and internal organs including the gastrointestinal (GI) tract in mice...
November 29, 2016: Nature Communications
https://www.readbyqxmd.com/read/27896310/preservation-of-essential-odor-guided-behaviors-and-odor-based-reversal-learning-after-targeting-adult-brain-serotonin-synthesis
#19
Kaitlin S Carlson, Meredith S Whitney, Marie A Gadziola, Evan S Deneris, Daniel W Wesson
The neurotransmitter serotonin (5-HT) is considered a powerful modulator of sensory system organization and function in a wide range of animals. The olfactory system is innervated by midbrain 5-HT neurons into both its primary and secondary odor-processing stages. Facilitated by this circuitry, 5-HT and its receptors modulate olfactory system function, including odor information input to the olfactory bulb. It is unknown, however, whether the olfactory system requires 5-HT for even its most basic behavioral functions...
September 2016: ENeuro
https://www.readbyqxmd.com/read/27895593/baseline-muscle-mass-is-a-poor-predictor-of-functional-overload-induced-gain-in-the-mouse-model
#20
Audrius Kilikevicius, Lutz Bunger, Arimantas Lionikas
Genetic background contributes substantially to individual variability in muscle mass. Muscle hypertrophy in response to resistance training can also vary extensively. However, it is less clear if muscle mass at baseline is predictive of the hypertrophic response. The aim of this study was to examine the effect of genetic background on variability in muscle mass at baseline and in the adaptive response of the mouse fast- and slow-twitch muscles to overload. Males of eight laboratory mouse strains: C57BL/6J (B6, n = 17), BALB/cByJ (n = 7), DBA/2J (D2, n = 12), B6...
2016: Frontiers in Physiology
keyword
keyword
119167
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"