Prostaglandin D2-Enhanced Testosterone Metabolism in Human Keratinocytes Is Mediated by Reactive Oxygen Species
April 2016
in “
Journal of Investigative Dermatology
”
Studysummary In this study, PGD2 treatment in keratinocytes increased testosterone production via reactive oxygen species, suggesting a potential role for the NRF2 pathway in androgenic alopecia treatment strategies. Our plain-language summary of this paper — not a Tressless recommendation.
The 2016 study investigated the role of Prostaglandin D2 (PGD2) in testosterone synthesis in human keratinocytes, cells that produce keratin, a key component of hair. PGD2 is known to promote androgenic alopecia (hair loss) and inhibit hair follicle growth. The study found that PGD2 treatment elevated testosterone levels, a process mediated by reactive oxygen species (ROS), not by the enzyme aldo-keto reductase 1C3 (AKR1C3) as previously thought. The application of a ROS scavenger blocked this testosterone elevation, indicating the crucial role of ROS in this process. Furthermore, PGD2 treatment activated NRF2, a major cellular anti-oxidant regulator, leading to an upregulation of its downstream genes involved in ROS clearance and other processes. The study suggested that understanding the role of ROS and NRF2 in PGD2-induced testosterone synthesis could lead to new treatments for androgenic alopecia and other testosterone-driven skin conditions.
