Spread of cancer and development of solid metastases at distant sites is the main cause of cancer-related deaths. To understand and treat metastases, it is important to determine at which stages the most pivotal steps for development of metastases occur. In head and neck squamous cell carcinoma (HNSCC), metastasis nearly always occurs first in local lymph nodes before development of distant metastasis. Here, we have investigated gene expression patterns in HNSCC lymph node metastases using DNA m ...[more]
Project description:In order to study the physiological consequences of a high-copper diet on hepatic gene expression, 6 mM CuCl2 was added to the drinking water for a period of 1 month. After this period, livers of seven control mice and eight copper-treated mice were isolated and were subjected to microarray analysis and copper measurements. The hepatic gene expression profile of copper-treated mice was compared to non-treated mice using a pooled reference.
Project description:Nine time points for microarray analysis were chosen to study early and late transcriptional responses in copper metabolism upon copper overload in HepG2 cells. Samples of copper-treated cells were hybridized using non-treated samples as a reference.
Project description:We have established Drosophila melanogaster as a model system for ocular hypertension by expressing wild-type human myocilin (MYOC) in the Drosophila eye. Here, we have created transgenic flies that express four clinically relevant mutant forms of MYOC (R342K, Q368X, D380N and K423E) in their eyes using the gmr-Gal4/UAS binary system. We compare and identify human glaucoma candidate genes based on the transcription profiles of flies that express wt-MYOC or mutant-MYOCs.
Project description:In this study we explored the antiviral gene expression induced in the CNS of MHV-infected mice, by performing whole-genome expression profiling. Three different mouse strains (BALB/c, 129SvEv and 129SvEv IFNAR-/- mice), differing in their susceptibility to infection with MHV, were used.
Project description:A parallel expression profiling of wild-type and loss-of-function mutants of Mla6 and Mla1 powdery mildew resistance alleles was conducted using Barley1 GeneChip. Barley plants were inoculated with powdery mildew isolate 5874 and first leaves were harvested at 6 time points after pathogen inoculation. This experiment was conducted in split-split-plot experimental design with 3 replications.
Project description:A large-scale time course expression profiling of wild type (Mla12/Rar1/Rom1) and mutants (mla12-M66, M82 (rar1-1), M100 (rar1-2) and rom1) of barley cultivar Sultan 5 was conducted to understand the molecular mechanisms of delayed powdery mildew resistance. Barley plants were inoculated with powdery mildew pathogen isolate 5874. First leaves of inoculated and non-inoculated plants were harvested at six time points after pathogen inoculation. The experiment was laid out in split-split-plot design with 180 experimental units (3 replications x 2 treatments (inoculated and non-inoculated) x 5 genotypes x 6 time points).
Project description:RNA was isolated from dissected ventral midbrains of E14.5 Pitx3-/- and Pitx3+/+ mouse embryos. 3 Experimental samples each consisting of 3 Pitx3-/- ventral midbrains were hybridized to reference RNA derived from 10 Pitx3+/+ ventral midbrains
Project description:Homeostasis of histone acetylation and the control of transcription. Involvement of histone acetyl transferase HAG4 in the root development.<br> hag4 mutant (with a insertion in HAG4 gene encoding a Histone Acetyl Transferase) and wild-type ecotype (Ws) were grown during 15 days, in vitro. RNA were extrated from roots of seedlings. Each sample (ws or hag4) corresponds to a pool of 3 independant cultures and harvesting. <br>