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Gene expression and DNA repair in progeroid syndromes and human aging.

Ageing Research Reviews

genetics, Werner Syndrome, Transcription, Genetic, Progeria, Oligonucleotide Array Sequence Analysis, Mutation, Humans, Gene Expression, DNA Repair, DNA Damage, DNA, Cockayne Syndrome, Animals, Aging

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      Human progeroid syndromes are caused by mutations in single genes accelerating some but not all features of normal aging. Most progeroid disorders are linked to defects in genome maintenance, and while it remains unknown if similar processes underlie normal and premature aging, they provide useful models for the study of aging. Altered transcription is speculated to play a causative role in aging, and is involved in the pathology of most if not all progeroid syndromes. Previous studies demonstrate that there is a similar pattern of gene expression changes in primary cells from old and Werner syndrome compared to young suggesting a presence of common cellular aging mechanisms in old and progeria. Here we review the role of transcription in progeroid syndromes and discuss the implications of similar transcription aberrations in normal and premature aging.

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