Research on pathway-specific regulation of motor and cognitive functions via dopamine D1 and D2 receptors

Countries/Regions
United States of America
Category
Research
Academic Field
Medicine
Related goals of SDGs
3 Good health and well-being
Keyword Genetically modified mice

Information on Niigata University

Name of the professor/researcher Toshikuni Sasaoka
Position/Faculty Professor, Brain Research Institute

Information on the Counterpart

Countries/Regions United States of America
Faculty/Institution University of Illinois at Urbana-Champaign

Detailed Information/Report on Activities

In collaboration with Prof. Sasaoka and Professors Sakimura and Abe, Dr. Yanyan Wang have made progress in generating the dopamine D2S conditional knockout (D2S cKO) mouse using the new RNA splicing and Cre-loxP recombination method. The D2S cKO is designed to express both D2L and D2S isoforms before Cre-loxP recombination and express only D2L after Cre-loxP recombination. Profs Sakimura and Abe have already obtained the targeted recombinant ES cells and generated progeny mice derived from ES cells. Prof. Sasaoka group is in the process of breeding these mice with recombinase-expressing mice to produce D2S cKO mice. It is expected that the D2S cKO mice will be obtained in 4-5 months.
In addition, we have established the condition and protocol for studying synaptic transmission in mouse striatal neurons using electrophysiological recordings in corticostriatal slices.
This collaborative research will enhance our understanding of the role of dopamine D1 receptor (D1R) and two isoforms of the dopamine D2 receptor (D2R) in the regulation of motor activity and cognitive functions and in dopaminergic-related neuropsychiatric disorders.