Rattus norvegicus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA104745 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:This SuperSeries is composed of the following subset Series:; GSE1589: Targets of HNF1b, HNF4a2 and HNF6 in INS-1 cells; GSE1590: Targets of HNF1b mutants in INS-1; GSE1591: INS-1 cell lines (FLP-In T-REx) Experiment Overall Design: Refer to individual Series
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Project description:Identification of genes regulated by the transcription factor HNF4a2 Experiment Overall Design: We used microarrays to identify genes regulated by the transcription factor HNF4a2. HEK293 cell lines containing doxycyclin-inducible wilt type or mutant forms of HNF4a2m which were introduced by FRT/FLP mediated recombination into FLP-In T-REx 293 cells (Invitrogen) were treated for 24 hours with 1 µg/ml doxycyclin. Gene expression profiles of induced and noninduced cells were compared to identify HNF4 regulated targets.
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Project description:Few studies have assessed the patterns of parasite populations of rodents over a longitudinal gradient in Chile. In this work, the gastrointestinal helminthic fauna of invasive rodents in Chile was examined to assess the association between their presence/absence and abundance with latitude, host sex, and host body condition, and to assess the coexistence and correlation of the abundance between parasite species. Rodents were obtained from 20 localities between 33 and 43°S. Helminths were extracted from the gastrointestinal tract and identified morphologically. Overall, 13 helminth taxa were obtained. The most frequently identified parasite species was Heterakis spumosa, and the most abundant was Syphacia muris, while Physaloptera sp. was the most widely distributed. No locality presented with a coexistence that was different from that expected by chance, while the abundance of five helminthic species correlated with the abundance of another in at least one locality, most likely due to co-infection rather than interaction. Host sex was associated with parasite presence or abundance, and female sex-biased parasitism was notably observed in all cases. Body condition and latitude presented either a positive or negative association with the presence or abundance of parasites depending on the species. It is notable that the likely native Physaloptera sp. is widely distributed among invasive rodents. Further, gravid females were found, suggesting spillback of this species to the native fauna. The low frequency and abundance of highly zoonotic hymenolepid species suggest that rodents are of low concern regarding gastrointestinal zoonotic helminths.
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Project description:Four rat insulinoma cell lines (INS-1) were generated that contain a FRT site for FLP recombinase mediated site specific integration of specific genes. In addition, the cell lines contain the tetracycline repressor allowing tetracycline (tet) induction of the introduced gene. By comparing the gene expression profiles of uninduced and tet-induced cells, target genes of introduced transcription factors or other signal tranduction molecules can be identified. The expression profiles of the parental INS-1 cell line and the four derivatives were determined on a RAE230A array, showing that the highly differentiated phenotype of the parental cell line was maintained in the clones.
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Project description:Flp-In T-REx-293 cells transfected with non-targeting control siRNA or UPF1-specific siRNA as indicated and used for total RNA-seq.
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Project description:This SuperSeries is composed of the SubSeries listed below.
2015-01-01 | GSE58692 | GEO
Project description:Four rat insulinoma cell lines (INS-1) were generated that contain a FRT site for FLP recombinase mediated site specific integration of specific genes. In addition, the cell lines contain the tetracycline repressor allowing tetracycline (tet) induction of the introduced gene. By comparing the gene expression profiles of uninduced and tet-induced cells, target genes of introduced transcription factors or other signal tranduction molecules can be identified. The expression profiles of the parental INS-1 cell line and the four derivatives were determined on a RAE230A array, showing that the highly differentiated phenotype of the parental cell line was maintained in the clones. Keywords: ordered
2004-11-05 | GSE1591 | GEO