Heidi O Nousiainen, Ileana B Quintero, Timo T Myöhänen, Vootele Voikar, Jelena Mijatovic, Mikael Segerstråle, Annakaisa M Herrala, Natalia Kulesskaya, Anitta E Pulkka, Tanja Kivinummi, Usama Abo-Ramadan, Tomi Taira, T Petteri Piepponen, Heikki Rauvala, Pirkko Vihko
Prostatic acid phosphatase (PAP), the first diagnostic marker and present therapeutic target for prostate cancer, modulates nociception at the dorsal root ganglia (DRG), but its function in the central nervous system has remained unknown. We studied expression and function of TMPAP (the transmembrane isoform of PAP) in the brain by utilizing mice deficient in TMPAP (PAP-/- mice). Here we report that TMPAP is expressed in a subpopulation of cerebral GABAergic neurons, and mice deficient in TMPAP show multiple behavioral and neurochemical features linked to hyperdopaminergic dysregulation and altered GABAergic transmission...
2014: PloS One