Peptidyl-prolyl cis-trans isomerase FKBP5 (FKBP5) mRNA (FKBP5 mRNA)

FKBP5 mRNA encodes the FK506-binding protein 51 (FKBP51), a co-chaperone that plays a pivotal role in regulating the hypothalamic-pituitary-adrenal (HPA) axis [UniProt, Q13451]. The protein product of this mRNA binds to the glucocorticoid receptor (GR) complex, decreasing its sensitivity to cortisol and inhibiting its nuclear translocation [Binder, 2009]. High levels of FKBP5 mRNA expression are strongly associated with glucocorticoid resistance and are often linked to genetic variants or epigenetic changes resulting from early-life stress [Zannas et al., 2016]. This dysregulation is a key factor in the development of post-traumatic stress disorder (PTSD), major depressive disorder, and chronic pain conditions [Maiarù et al., 2018]. Therapeutic interventions targeting FKBP5 mRNA, such as antisense oligonucleotides (ASOs) and small interfering RNAs (siRNAs), aim to knockdown protein expression to restore normal GR signaling [Maiarù et al., 2018]. Research suggests that reducing FKBP5 mRNA can alleviate stress-induced behavioral deficits and hypersensitivity in animal models [Zannas et al., 2016]. However, challenges remain regarding the delivery of these RNA-based therapies to the central nervous system and the potential for off-target effects [Maiarù et al., 2018].

Other names

FK506-binding protein 5 mRNAFKBP51 mRNAP54 mRNAPPIase FKBP5 mRNAFKBP5 transcript

RNase H-mediated mRNA degradation (for ASOs) and RNA interference (for siRNA) to reduce the translation of the FKBP51 protein.