BACKGROUND volatile anesthetics inhibit mucociliary clearance in the airways. Two-pore domain K + channels, TASK-1, is one of their molecular targets that they increase the probability of open. Here, we determine whether the speed of transport of particles (PTS) in the mucosal Mouse Clia Kits surface of the mouse trachea, is an important factor of cilia-driven mechanism of mucociliary clearance, is governed by the TASK-1. RESULTS RT-PCR analysis revealed expression of TASK-1 mRNA in the dissected and laser-assisted tracheal epithelium microdissected mouse. Anesthesia (isoflurane and Avertin®) and TASK-1 inhibitor (anandamide and A293) cilia activity was investigated by the assessment of PTS in murine tracheal mucosal surface of explanted and opened. Both TASK-1 inhibitor or isoflurane have an impact on the basal and ATP-stimulated PTS. Avertin® PTS reduced basal and ATP-stimulated PTS decreased its presence in wild-type (WT) mice. Avertin® basal PTS-induced reduction in the WT mi...
Serotonin 5-HT6 receptors affect cognition in a mouse model of Alzheimer's disease by regulating cilia function.
BACKGROUND Serotonin 5-HT6 receptor is involved in cognition and Alzheimer's disease (AD) development. However, the mechanism of 5-HT6 in the pathology of AD is unclear. METHOD Since the 5-HT6 almost exclusively expressed in primary cilia, using Human Clia Kits immunostaining we examine the number of cilia in an animal model of AD hippocampus of APP / PS1 mice. By expressing and knocking down 5-HT6 in primary cultured hippocampal neurons, we investigated the role of 5-HT6 in alternating cilia morphology. Furthermore, 5-HT6 antagonists are applied to confirm its role in cognition using the Morris water maze test, Y maze and fear conditioning. RESULTS In this study, we found that primary cilia extending in the hippocampus of APP / PS1 mice compared with WT mice. 5-HT6 long set of cilia, cilia affected and axon initial segment (AIS) morphology and localization of affected ARL13B and AnkG. We also found that, by changing the morphology of cilia, AIS was elongated, branched, and more ...