Human Gene Set: WEIGEL_OXIDATIVE_STRESS_BY_TBH_AND_H2O2


Standard name WEIGEL_OXIDATIVE_STRESS_BY_TBH_AND_H2O2
Systematic name M11333
Brief description Oxidative stress genes down-regulated in ARPE-19 cells (retinal pigmented epithelium) in response to tert-butyl hydroperoxide (tBH) and H2O2 [PubChem=6410;784].
Full description or abstract Oxidative stress plays a key role in aging diseases of the posterior pole of the eye such as age-related macular degeneration. The oxidative stress response of in vitro RPE cells has been studied for a small number of genes. However, a comprehensive transcriptional response has yet to be elucidated. The purpose of this study was to determine if the transcription of a common set of genes is altered by exposure of ARPE-19 cells to three major generators of oxidative stress, hydrogen peroxide (H2O2), 4-hydroxynonenal (HNE), and tert-butylhydroperoxide (tBH). As expected, a common response was observed that included 35 genes differentially regulated by all three treatments. Of these, only one gene was upregulated, and only by one oxidant, while all other responses were downregulation. The majority of these genes fell into five functional categories: apoptosis, cell cycle regulation, cell-cell communication, signal transduction, and transcriptional regulation. Additionally, a large number of genes were differentially regulated by one oxidant only, including the majority of the conventional oxidative stress response genes present on the Clontech Human 1.2 microarray. This study raises questions regarding the generality of results that involve the use of a single oxidant and a single cell culture condition.
Collection C2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 12419474   Authors: Weigel AL,Handa JT,Hjelmeland LM
Exact source Table 5
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Source species Homo sapiens
Contributed by John Newman (University of Washington)
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identifier namespace		 HUMAN_SEQ_ACCESSION
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Version history 3.0: Renamed from OXSTRESS_RPE_H2O2TBH_DN

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