Do antidepressants actually heal and replace damaged brain cells?

Most antidepressants are thought to stimulate the production of natural healing and protective biochemicals, including brain-derived neurotrophic factor (BDNF), nerve growth factor (NGF), and neurotrophin-3 (NT-3). The ability of antidepressants to heal the brain is not yet fully appreciated. We may find that antidepressants also have a role in repairing brain cells damaged by injury, disease, toxins, and abused drugs, or in helping to slow down the aging process.