Genomic approaches for the understanding of aging in model organisms

  • Park, Sang-Kyu (Department of Medical Biotechnology, College of Medical Science, Soonchunhyang University)
  • Received : 2011.04.18
  • Published : 2011.05.31


Aging is one of the most complicated biological processes in all species. A number of different model organisms from yeast to monkeys have been studied to understand the aging process. Until recently, many different age-related genes and age-regulating cellular pathways, such as insulin/IGF-1-like signal, mitochondrial dysfunction, Sir2 pathway, have been identified through classical genetic studies. Parallel to genetic approaches, genome-wide approaches have provided valuable insights for the understanding of molecular mechanisms occurring during aging. Gene expression profiling analysis can measure the transcriptional alteration of multiple genes in a genome simultaneously and is widely used to elucidate the mechanisms of complex biological pathways. Here, current global gene expression profiling studies on normal aging and age-related genetic/environmental interventions in widely-used model organisms are briefly reviewed.


Aging;C. elegans;DNA microarray;Drosophila melanogaster;Mice;Transcriptional profiling


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