Transcription profiling of mouse leydig tumor cell line stimulated with either human chorionic gonadotropin alone or with bisphenol A, an endrocrine disrupting chemical
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ABSTRACT: A mouse leydig tumour cell line (mLTC-1) was grown in culture and stimulated with either human chorionic gonadotropin (hCG, 10 ng/ml) alone or hCG & bisphenol A (BPA, an endrocrine disrupting chemical, 10 uM) for three hours. Cells from triplicate plates were harvested, RNA extracted, labelled and hybridised to Affymetrix Mouse genome 430 2.0 arrays. Preliminary work by RT-PCR had shown that stimulation of the cell line by BPA resulted in changes in gene expression in the spermatogenesis pathway at this time point.
Project description:A mouse embryonic stem cell line was generated which stably expressed the ngn3 transcription factor under the control of the Tet-On inducible system using knock-ins in the ROSA26 and the HPRT loci. The undifferentiated mouse embryonic stem cells were then differentiated into Embryoid Bodies in suspension culture and were either treated with Doxycycline to induce NGN3 expression or left untreated as a contol. Cells were harvested at 12 hours, 24 hours and 48 hours.
Project description:Total RNA was isolated from interleukin 7 (overexpressed) transgenic mice-derived pre-leukaemic cell line B3, labelled cRNA was prepared and hybridised to Affymetrix Mouse 430 2.0 arrays.
Project description:BXH/HXB rat recombinant inbred (RI) strains are derived from the spontaneously hypertensive rat (SHR/Ola) and the Brown Norway congenic strains carrying the polydactylyl-luxate mutation (BN-Lx). Tissue from the apex of left ventricle of the heart was disected from 128 RI SHR/Ola and BN-Lx parental strains, RNA was extracted and labelled and hybridised to Affymetrix Rat Genome 230 2.0 Arrays.
Project description:Ventricles were removed from 2-day Sprague_Dawley rat litters from which primary cardiac myocytes (>95%) were isolated. Myocytes were either untreated or exposed to either endothelin-1 for 30, 60 or 120 minutes, cycloheximide for 70 or 130 minutes, endothelin-1 for 10 minutes followed by cycloheximide for 70 minutes, azekenpaullone for 60 minutes before extraction of total or polysomal (actively transcribed) RNA. Labelled cRNA was hybridised to Affymetrix Rat 230 2.0 arrays.
Project description:Mononuclear cells were isolated from granulocyte colony stimulating factor mobilised peripheral blood. CD34+ cells were selected and separated into adherent and non-adherent cells. Adherent and non-adherent samples were amplified and labelled using two IVT cycles, and gene expression profiling was performed by hybridisation to Affymetrix Human Genome U133 Plus2.0 Arrays.
Project description:Blood taken from a healthy human donor was used to isolate CD4CD45RO T-cells. Purified cells were stimulated with either interleukin-2 (IL-2), Interleukin-6 (IL-6) and TNF-alpha and harvested at 24 hours, 72 hours (3 days) and 144 hours (6 days) or anti-CD3 antibodies and harvested at 24 hours. These were compared to unstimulated purified CD4CD45RO T-cells harvested at 0 hours.
Project description:Undifferentiated mouse embryonic stem cells stably expressing the HOXB1 transcription factor under doxycycline tet-on control were differentiated into embryoid bodies. Nestin+ neuroepithelial cells were selected by transfer of the embryoid bodies to ISTFn media. Expression of HOXB1 was induced by addition of doxycycline or not induced on the seventh day of selection and also for one day after trypsination and transfer to laminin/polyornithine substrate on matrigel substrate.
Project description:Title: Comparison of ovarian gene expression in RIP140 wild type, heterozygous and knock out mice.<br/> Description: RIP140 null mice fail to ovulate. This experiment was designed to <br/> determine the gene expression profile of these animals compared <br/> to wild type and heterozygous animals following hormone treatments <br/> that induce the biological changes required for ovulation to occur.
Project description:Title: Gene expression profiling of human heart samples: a comparison between normal and hibernating myocardium.<br/> Description: The aim of this project is to investigate the changes in global gene<br/> expression in hibernating,(preserved wall thickness, impaired <br/> contractility at rest, recruitable with low dose dobutamine <br/> and 50% transmural hyperenhancement with gadolinium) and normal myocardium,<br/> (preserved myocardial wall thickness, normal contractility, no significant improvement in functional recruitability with dobutamine and no cardiac fibrosis seen).
Project description:Title: Gene Expression analysis of the role of RIP140 in adipocyte differentiation<br/> Description: RIPKO cells are mouse embryo fibroblasts (MEF) that were derived from <br/> RIP140-knockout mice and have been established as a RIP140 null cell line,<br/> while RIPKO-L7 and RIPKO-L16 are RIPKO cells for which the expression of<br/> RIP140 has been reintroduced using a lentiviral expression system. <br/> Using an established standard cocktail of hormones that includes IBMX, <br/> insulin, dexamethasone and a PPAR gamma agonist the cells were <br/> differentiated into adipocytes and RNA isolated at day 0 and day 10 <br/> after the addition of the cocktail.