Project description:Identification of cyclical expressed coding and non-coding genes during the circadian rhythm in NIH3T3 cells. NIH3T3 cells were synchronized for their circadian rhythm and RNA sequencing were performed at several time points along the rhythm. This data was used to identify cyclical expressed genes as well as long intergenic non-coding RNAs.
Project description:Transcriptional profiling of mouse NIH3T3 cells comparing control NIH3T3 cells transfected with a pEFm6-BRAF with cells transfected with pEFm6-BRAFV600E. Goal was to determine the effects of BRAFV600E gene transfection on global mouse NIH3T3 cells gene expression.
Project description:Identification of cyclical expressed coding and non-coding genes during the circadian rhythm in NIH3T3 cells. NIH3T3 cells were synchronized for their circadian rhythm and RNA sequencing were performed at several time points along the rhythm. This data was used to identify cyclical expressed genes as well as long intergenic non-coding RNAs. NIH3T3 cells were synchronized with 100 nM Dexamethasone for 2 hours, then medium was changed to normal culture medium (0h). Every 4 hours cells were harvested, RNA isolated and RNAseq performed.
Project description:Introgressed variants from other species can be an important source of genetic variation because they may arise rapidly, can include multiple mutations on a single haplotype, and have often been pretested by selection in the species of origin. Although introgressed alleles are generally deleterious, several studies have reported introgression as the source of adaptive alleles-including the rodenticide-resistant variant of Vkorc1 that introgressed from Mus spretus into European populations of Mus musculus domesticus. Here, we conducted bidirectional genome scans to characterize introgressed regions into one wild population of M. spretus from Spain and three wild populations of M. m. domesticus from France, Germany, and Iran. Despite the fact that these species show considerable intrinsic postzygotic reproductive isolation, introgression was observed in all individuals, including in the M. musculus reference genome (GRCm38). Mus spretus individuals had a greater proportion of introgression compared with M. m. domesticus, and within M. m. domesticus, the proportion of introgression decreased with geographic distance from the area of sympatry. Introgression was observed on all autosomes for both species, but not on the X-chromosome in M. m. domesticus, consistent with known X-linked hybrid sterility and inviability genes that have been mapped to the M. spretus X-chromosome. Tract lengths were generally short with a few outliers of up to 2.7 Mb. Interestingly, the longest introgressed tracts were in olfactory receptor regions, and introgressed tracts were significantly enriched for olfactory receptor genes in both species, suggesting that introgression may be a source of functional novelty even between species with high barriers to gene flow.
Project description:Histones were isolated from brown adipose tissue and liver from mice housed at 28, 22, or 8 C. Quantitative top- or middle-down approaches were used to quantitate histone H4 and H3.2 proteoforms. See published article for complimentary RNA-seq and RRBS datasets.
Project description:Effect of the overexpression of the oncogenic forms of the Vav2 and Vav proteins in the NIH3T3 cell line. oncovav- and oncovav2-transformed NIH3T3 cells are compared to the parental NIH3T3 controls under exponential growth conditions
Project description:Expression profiling of normal NIH3T3 and transformed NIH3T3 K-ras cell lines grown for 72 hours in optimal glucose availability (25 mM glucose) or low glucose availability (1 mM). Low glucose induces apoptosis in transformed cells as compared to normal ones.
Project description:Translational research is commonly performed in the C57B6/J mouse strain, chosen for its genetic homogeneity and phenotypic uniformity. Here, we evaluate the suitability of the white-footed deer mouse (Peromyscus leucopus) as a model organism for aging research, offering a comparative analysis against C57B6/J and diversity outbred (DO) Mus musculus strains. Our study includes comparisons of body composition, skeletal muscle function, and cardiovascular parameters, shedding light on potential applications and limitations of P. leucopus in aging studies. Notably, P. leucopus exhibits distinct body composition characteristics, emphasizing reduced muscle force exertion and a unique metabolism, particularly in fat mass. Cardiovascular assessments showed changes in arterial stiffness, challenging conventional assumptions and highlighting the need for a nuanced interpretation of aging-related phenotypes. Our study also highlights inherent challenges associated with maintaining and phenotyping P. leucopus cohorts. Behavioral considerations, including anxiety-induced responses during handling and phenotyping assessment, pose obstacles in acquiring meaningful data. Moreover, the unique anatomy of P. leucopus necessitates careful adaptation of protocols designed for Mus musculus. While showcasing potential benefits, further extensive analyses across broader age ranges and larger cohorts are necessary to establish the reliability of P. leucopus as a robust and translatable model for aging studies.
Project description:Epigenetic H3k27me3 changes of mouse NIH3T3 cells comparing control NIH3T3 cells transfected with a pEFm6-BRAF with cells transfected with pEFm6-BRAFV600E. By obtaining over 30 Million bases of sequence from chromatin immunoprecipitated DNA, we generated genome-wide chromatin-state maps of BRAF transfected. We find that global lysine 3 and lysine 27 trimethylation levels changed under the condition of activated ERK by BRAFV600E, and specific genes might be downregulated for the hight level of H3K27me3 induced by BRAFV600E