Transcriptomic changes in developing kidney exposed to chronic hypoxia

cDNA arrays compared gene expression in kidneys of neonatal mice subjected to 1, 2, and 4 weeks of chronic constant (CCH) or intermittent (CIH) hypoxia with normoxic littermates. Five to twenty percent of genes were regulated in each condition, with greater changes in CCH. Up-regulation of 42% of th...

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Bibliographic Details
Published in:Biochemical and biophysical research communications 2006-10, Vol.349 (1), p.329-338
Main Authors: Iacobas, Dumitru A., Fan, Chenhao, Iacobas, Sanda, Spray, David C., Haddad, Gabriel G.
Format: Article
Language:English
Subjects:
Aging
Animals
Apoptosis
Development
Female
Gender difference
Gene expression
Gene Expression Regulation, Developmental
Growth factor
Heat shock protein
Heat-Shock Proteins - metabolism
Hydrogen-Ion Concentration
Hypoxia
Kidney - embryology
Male
Maturation
Mice
Renal
Sex Factors
Solute carrier
Time Factors
Transcription, Genetic
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Summary:cDNA arrays compared gene expression in kidneys of neonatal mice subjected to 1, 2, and 4 weeks of chronic constant (CCH) or intermittent (CIH) hypoxia with normoxic littermates. Five to twenty percent of genes were regulated in each condition, with greater changes in CCH. Up-regulation of 42% of the solute carriers after 1 week of CCH suggests a strong activation of pH controlling pathways. Significant reduction in expression change of genes important in growth, development, and aging as a function of time indicates reduced maturation rate in CIH and CCH treatments. Regulated genes showed gender dependence in CCH, being higher in females than males at 1 week and higher in males than females thereafter. Transcriptional control was enhanced in CCH but not in CIH. Thus, CCH and CIH both alter gene expression and retard maturation with the more profound changes occurring in CCH than in CIH.
ISSN:0006-291X
1090-2104
DOI:10.1016/j.bbrc.2006.08.056