Expression profiling of aging in the human skin
Thomas Lener1, Pamela Renate Moll, Mark Rinnerthaler
1Department of Cell Biology, University of Salzburg, Hellbrunnerstrasse 34, A-5020 Salzburg, Austria.
Experimental Gerontology
|March 15, 2006
Summary
Gene expression changes in human skin aging were identified. This study reveals key genes and cellular processes impacted by natural skin aging, offering insights into age-related skin changes.
Area of Science:
- Genomics
- Dermatology
- Aging Research
Background:
- The aging process is genetically controlled across various organisms.
- Understanding human skin aging requires investigating age-related gene expression changes.
Purpose of the Study:
- To identify genes involved in the natural aging process of human skin.
- To analyze differential gene expression patterns between young and aged human skin.
Main Methods:
- cDNA microarray analysis was performed on human foreskin samples from young and old individuals.
- A set of 2135 pre-selected EST clones was used for array experiments.
- Real-time PCR was employed to confirm the expression of regulated genes.
Main Results:
- 105 genes showed altered expression (over 1.7-fold) in aged human skin compared to young skin.
- 62 genes were up-regulated, while 43 genes were down-regulated in the aging process.
- Key affected cellular processes include cell cycle control, cytoskeletal changes, inflammation, signaling, and metabolism.
Conclusions:
- Human skin aging is associated with the deregulation of numerous cellular processes.
- Identified gene expression changes provide molecular insights into skin aging.
- This research contributes to understanding the genetic basis of natural skin aging.
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