The number of p16INK4a positive cells in human skin reflects biological age

MEC Waaijer, WE Parish, BH Strongitharm… - Aging cell, 2012 - Wiley Online Library
MEC Waaijer, WE Parish, BH Strongitharm, D van Heemst, PE Slagboom, AJM de Craen…
Aging cell, 2012Wiley Online Library
Cellular senescence is a defense mechanism in response to molecular damage which
accumulates with aging. Correspondingly, the number of senescent cells has been reported
to be greater in older than in younger subjects and furthermore associates with age‐related
pathologies. Inter‐individual differences exist in the rate at which a person ages (biological
age). Here, we studied whether younger biological age is related to fewer senescent cells in
middle‐aged individuals with the propensity for longevity, using p16INK4a as a marker for …
Summary
Cellular senescence is a defense mechanism in response to molecular damage which accumulates with aging. Correspondingly, the number of senescent cells has been reported to be greater in older than in younger subjects and furthermore associates with age‐related pathologies. Inter‐individual differences exist in the rate at which a person ages (biological age). Here, we studied whether younger biological age is related to fewer senescent cells in middle‐aged individuals with the propensity for longevity, using p16INK4a as a marker for cellular senescence. We observed that a younger biological age associates with lower levels of p16INK4a positive cells in human skin.
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