Aged skin equivalent, methods of preparation and uses thereof

摘要

Aged skin equivalent comprising an epidermis equivalent and an aged dermis equivalent, is new. Independent claims are also included for the following: (1) an aged dermis equivalent comprising glycated collagen and fibroblasts; (2) an epidermis equivalent that is obtainable by seeding keratinocytes onto a dermis equivalent comprising glycated collag and fibroblasts and/or has modified integrin beta 1 expression, especially expressing integrin beta 1 in the cells of at least the first three suprabasal layers; and (3) production of an aged skin equivalent by preparing a lattice comprising glycated collagen and fibroblasts and reconstituting an epidermis equivalent comprising keratinocytes on the lattice.