The present invention relates to a
PTEN oxidative inactivation
inducer comprising 1,1-diethoxyethane as an
active ingredient and use thereof. More specifically, the present invention relates to: a
PTEN oxidative inactivation
inducer comprising 1,1-diethoxyethane (1,1-DEE) as an
active ingredient; and use thereof, for example, a pharmaceutical composition, a cosmetic composition, a food composition, or a feed composition, as a composition for preventing, treating or ameliorating diseases requiring the oxidative inactivation of
PTEN, and a method for detecting PTEN
redox state.