title: The role of peroxisome proliferator-activated receptor-coactivator-1 gene in skin aging.
abstract: Skin aging is a continuous process that exhibits fine and deep wrinkles, thin and transparent skin, loss of underlying fat, dry skin and itch, following decreased collagen and elastin synthesis. Both extrinsic and intrinsic agents are considered in the pathogenesis on skin aging. Extrinsic factors such as sun exposure, windy and dry weather, nutrition, and lifestyle may induce premature aging, toxic-free radicals, and reactive oxygen species due to decreasing normal function of mitochondria which play the major intrinsic factors in premature skin aging. One of the major genetic factors in mitochondrial function is peroxisome proliferator-activated receptor-coactivator-1 (PGC-1) gene. This factor could delay skin aging by increasing the mitochondrial biogenesis and replication and oxidative phosphorylation and so may induce free radical scavenging. This review is focused on intrinsic skin aging and the role of PGC-1 protein in decreasing effect of aging causes.
authors.affiliation: Department of Genetics, Shahrekord University, Shahrekord, Iran.
authors.forename: Shahrzad
authors.initials: S
authors.lastname: Aghaei
authors.affiliation: Skin and Stem Cell Research Center, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Mohammad Ali
authors.initials: MA
authors.lastname: Nilforoushzadeh
authors.affiliation: Skin Disease and Leishmaniasis Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran.
authors.forename: Maryam
authors.initials: M
authors.lastname: Aghaei
keywords: Free radicals; mitochondria; peroxisome proliferator-activated receptor-coactivator-1; replication; skin aging; wrinkle