UASt regulates expression of Hsap\LRRK2 containing a Y1699C mutation, tagged with Tag:MYC at the C terminus.
Scer\GAL4elav.PU-mediated expression of Hsap\LRRK2Y1699C.Scer\UAS.T:Hsap\MYC does not appear to compromise the overall anatomical integrity of the fly brain up to 60 d after eclosion. Scanning electron microscope analysis reveals no apparent eye abnormalities in Scer\GAL4GMR.PU Hsap\LRRK2Y1699C.Scer\UAS.T:Hsap\MYC flies at 20 d after eclosion. Similar observations are made when these flies are aged to 60 d. In 60 day old, but not 1 or 20 day old, flies expressing Hsap\LRRK2Y1699C.Scer\UAS.T:Hsap\MYC via Scer\GAL4Ddc.PL, there is significant degeneration of DA neurons in the PPM clusters 1 and 3 (but not PAL, PPM2, PPL1 or PPL2) compared with age-matched normal control flies. 60 day old, but not 20 day old, flies expressing Hsap\LRRK2Y1699C.Scer\UAS.T:Hsap\MYC via Scer\GAL4Ddc.PL record dramatically poorer climbing scores compared to controls. Flies expressing Hsap\LRRK2Y1699C.Scer\UAS.T:Hsap\MYC via Scer\GAL4Ddc.PL have a reduced lifespan. There is no accelerated loss of DA neurons of rotenone-treated flies expressing Hsap\LRRK2Y1699C.Scer\UAS.T:Hsap\MYC via Scer\GAL4Ddc.PL, compared to controls.