Research on the FKBP5 gene and FKBP51 protein has more than doubled since the discovery that
polymorphisms in this gene could alter treatment outcomes and depressive behavior in humans. This coincided with other
data suggesting that the stress hormone axis contributes to the development of numerous mental illnesses. As a result,
FKBP51 now lies at the heart of the research of many stress related psychiatric disorders, which has led to advances in the
understanding of this protein and its role in humans and in animal models. Specifically, FKBP5-/- mice and a naturally
existing overexpression of FKBP5 in 3 genera of new world monkeys have helped understand the effects of FKBP5 in
vivo. This review will highlight these finding as well as discuss the current evolutionary need for the FKBP5 gene.
Keywords: FK506-binding protein 51, FKBP5 gene, Heat shock protein 90, glucocorticoid receptor, depression, post-traumatic
stress disorder, suicide, polymorphisms, genome-wide association studies, stress, behavior, resilience.
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Published on: 04 September, 2013
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