Mice, Inbred CBA

Publication Title: 
Cell Metabolism

Age-related disease, not aging per se, causes most morbidity in older humans. Here we report that skeletal muscle respiratory uncoupling due to UCP1 expression diminishes age-related disease in three mouse models. In a longevity study, median survival was increased in UCP mice (animals with skeletal muscle-specific UCP1 expression), and lymphoma was detected less frequently in UCP female mice. In apoE null mice, a vascular disease model, diet-induced atherosclerosis was decreased in UCP animals.

Author(s): 
Gates, Allison C.
Bernal-Mizrachi, Carlos
Chinault, Sharon L.
Feng, Chu
Schneider, Jochen G.
Coleman, Trey
Malone, James P.
Townsend, R. Reid
Chakravarthy, Manu V.
Semenkovich, Clay F.
Publication Title: 
American Journal of Physiology. Endocrinology and Metabolism

Ectopic expression of uncoupling protein 1 (UCP1) in skeletal muscle (SM) mitochondria increases lifespan considerably in high-fat diet-fed UCP1 Tg mice compared with wild types (WT). To clarify the underlying mechanisms, we investigated substrate metabolism as well as oxidative stress damage and antioxidant defense in SM of low-fat- and high-fat-fed mice. Tg mice showed an increased protein expression of phosphorylated AMP-activated protein kinase, markers of lipid turnover (p-ACC, FAT/CD36), and an increased SM ex vivo fatty acid oxidation.

Author(s): 
Keipert, S.
Ost, M.
Chadt, A.
Voigt, A.
Ayala, V.
Portero-Otin, M.
Pamplona, R.
Al-Hasani, H.
Klaus, S.
Publication Title: 
Proceedings of the National Academy of Sciences of the United States of America

Transcriptional dysregulation is an early feature of Huntington disease (HD). We observed gene-specific changes in histone H3 lysine 4 trimethylation (H3K4me3) at transcriptionally repressed promoters in R6/2 mouse and human HD brain. Genome-wide analysis showed a chromatin signature for this mark. Reducing the levels of the H3K4 demethylase SMCX/Jarid1c in primary neurons reversed down-regulation of key neuronal genes caused by mutant Huntingtin expression. Finally, reduction of SMCX/Jarid1c in primary neurons from BACHD mice or the single Jarid1 in a Drosophila HD model was protective.

Author(s): 
Vashishtha, Malini
Ng, Christopher W.
Yildirim, Ferah
Gipson, Theresa A.
Kratter, Ian H.
Bodai, Laszlo
Song, Wan
Lau, Alice
Labadorf, Adam
Vogel-Ciernia, Annie
Troncosco, Juan
Ross, Christopher A.
Bates, Gillian P.
Krainc, Dimitri
Sadri-Vakili, Ghazaleh
Finkbeiner, Steven
Marsh, J. Lawrence
Housman, David E.
Fraenkel, Ernest
Thompson, Leslie M.
Publication Title: 
Molecular Microbiology

Artemisinin- and artesunate-resistant Plasmodium chabaudi mutants, AS-ART and AS-ATN, were previously selected from chloroquine-resistant clones AS-30CQ and AS-15CQ respectively. Now, a genetic cross between AS-ART and the artemisinin-sensitive clone AJ has been analysed by Linkage Group Selection. A genetic linkage group on chromosome 2 was selected under artemisinin treatment. Within this locus, we identified two different mutations in a gene encoding a deubiquitinating enzyme.

Author(s): 
Hunt, Paul
Afonso, Ana
Creasey, Alison
Culleton, Richard
Sidhu, Amar Bir Singh
Logan, John
Valderramos, Stephanie G.
McNae, Iain
Cheesman, Sandra
do Rosário, Virgílio
Carter, Richard
Fidock, David A.
Cravo, Pedro
Publication Title: 
The American Journal of Tropical Medicine and Hygiene

Artemether (ART) is a well-described antimalarial with efficacy against juvenile schistosomes, with 7-day-old schistosomula being particularly susceptible. Both ART-affected worms and parasites developing from irradiated cercariae die at similar times after infection. Our aim was to determine if ART treatment of prepatent schistosomiasis japonica may result in the generation of a protective immune response. Female CBA mice were treated with a single dose of ART at defined time points after percutaneous infection with a virulent Chinese mainland strain of Schistosoma japonicum.

Author(s): 
Bartley, Paul B.
Glanfield, Amber
Li, Yuesheng
Stanisic, Danielle I.
Duke, Mary
Jones, Malcolm K.
McManus, Donald P.
Publication Title: 
Malaria Journal

BACKGROUND: The control of malaria, caused by Plasmodium falciparum, is hampered by the relentless evolution of drug resistance. Because artemisinin derivatives are now used in the most effective anti-malarial therapy, resistance to artemisinin would be catastrophic. Indeed, studies suggest that artemisinin resistance has already appeared in natural infections. Understanding the mechanisms of resistance would help to prolong the effective lifetime of these drugs. Genetic markers of resistance are therefore required urgently.

Author(s): 
Henriques, Gisela
Martinelli, Axel
Rodrigues, Louise
Modrzynska, Katarzyna
Fawcett, Richard
Houston, Douglas R.
Borges, Sofia T.
D'Alessandro, Umberto
Tinto, Halidou
Karema, Corine
Hunt, Paul
Cravo, Pedro
Publication Title: 
Cancer Prevention Research (Philadelphia, Pa.)

Chemoprevention of head and neck squamous cell carcinoma (HNSCC), a disease associated with high mortality rates and frequent occurrence of second primary tumor (SPT), is an important clinical goal. The epidermal growth factor receptor (EGFR)-signal transducer and activator of transcription (STAT)-3 signaling pathway is known to play a key role in HNSCC growth, survival, and prognosis, thereby serving as a potential therapeutic target in the treatment of HNSCC.

Author(s): 
Leeman-Neill, Rebecca J.
Seethala, Raja R.
Singh, Shivendra V.
Freilino, Maria L.
Bednash, Joseph S.
Thomas, Sufi M.
Panahandeh, Mary C.
Gooding, William E.
Joyce, Sonali C.
Lingen, Mark W.
Neill, Daniel B.
Grandis, Jennifer R.
Publication Title: 
Cancer Prevention Research (Philadelphia, Pa.)

Chemoprevention of head and neck squamous cell carcinoma (HNSCC), a disease associated with high mortality rates and frequent occurrence of second primary tumor (SPT), is an important clinical goal. The epidermal growth factor receptor (EGFR)-signal transducer and activator of transcription (STAT)-3 signaling pathway is known to play a key role in HNSCC growth, survival, and prognosis, thereby serving as a potential therapeutic target in the treatment of HNSCC.

Author(s): 
Leeman-Neill, Rebecca J.
Seethala, Raja R.
Singh, Shivendra V.
Freilino, Maria L.
Bednash, Joseph S.
Thomas, Sufi M.
Panahandeh, Mary C.
Gooding, William E.
Joyce, Sonali C.
Lingen, Mark W.
Neill, Daniel B.
Grandis, Jennifer R.
Publication Title: 
Learning & Memory (Cold Spring Harbor, N.Y.)

In this paper, we demonstrate nondeclarative sequence learning in mice using an animal analog of the human serial reaction time task (SRT) that uses a within-group comparison of behavior in response to a repeating sequence versus a random sequence. Ten female B6CBA mice performed eleven 96-trial sessions containing 24 repetitions of a 4-trial sequence. During the 12th session, the repeating sequence was replaced with the random sequence halfway through the session.

Author(s): 
Christie, Michael A.
Hersch, Steven M.
Publication Title: 
PloS One

Huntington's disease (HD) is caused by a dominant polyglutamine expansion within the N-terminus of huntingtin protein and results in oxidative stress, energetic insufficiency and striatal degeneration. Copper and iron are increased in the striata of HD patients, but the role of these metals in HD pathogenesis is unknown. We found, using inductively-coupled-plasma mass spectroscopy, that elevations of copper and iron found in human HD brain are reiterated in the brains of affected HD transgenic mice.

Author(s): 
Fox, Jonathan H.
Kama, Jibrin A.
Lieberman, Gregory
Chopra, Raman
Dorsey, Kate
Chopra, Vanita
Volitakis, Irene
Cherny, Robert A.
Bush, Ashley I.
Hersch, Steven

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