000000673 001__ 673 000000673 005__ 20260225152244.0 000000673 0247_ $$2DOI$$a10.6083/M4WW7FND 000000673 037__ $$aETD 000000673 245__ $$aThe physiological function and pathogenic role of drosophila protein Swiss cheese 000000673 260__ $$bOregon Health and Science University 000000673 269__ $$a2010 000000673 336__ $$aDissertation 000000673 502__ $$bPh.D. 000000673 502__ $$gNeuroscience 000000673 520__ $$aThis dissertation investigates the physiological role of the Drosophila protein Swiss Cheese (SWS) and its involvement in pesticide‑induced neuropathy. First, a novel function for SWS is identified: regulating the kinase PKA‑C3 by binding it at the membrane and maintaining it in an inactive state. In sws¹ mutants, loss of this regulation leads to overactive PKA‑C3 and neurodegeneration. The work also shows that organophosphate exposure reduces kinase activity, likely by altering SWS and preventing activation of PKA‑C3, and that elevated SWS levels increase organophosphate toxicity. Preliminary data indicate that constitutively active PKA‑C3 or disrupted SWS binding promotes vacuole formation in the brain. Together, these findings demonstrate that SWS and PKA‑C3 interact to maintain neuronal integrity and that disruption of this regulatory system contributes to neurodegenerative disease. 000000673 540__ $$fCC BY 000000673 542__ $$fIn copyright - single owner 000000673 650__ $$aDrosophila Proteins$$033672 000000673 650__ $$aProteins$$024763 000000673 650__ $$aEsters$$018650 000000673 650__ $$aNerve Degeneration$$022797 000000673 650__ $$aNervous System$$022807 000000673 650__ $$aPesticides$$023885 000000673 650__ $$aDisease Models, Animal$$017932 000000673 650__ $$aOrganophosphates$$024056 000000673 6531_ $$aphosphoric acid esters 000000673 691__ $$aSchool of Medicine$$041369 000000673 692__ $$aVollum Institute$$041509 000000673 7001_ $$aWentzell, Jill$$uOregon Health and Science University$$041354 000000673 7201_ $$aKretzschmar, Doris$$uOregon Health and Science University$$041354$$7Personal$$eMentor 000000673 8564_ $$9de82ce97-a5a5-4909-957c-ceccb0ecdade$$s3716282$$uhttps://digitalcollections.ohsu.edu/record/673/files/674_etd.pdf$$ePublic$$2268c40f9382b8757faf400b217437e7f$$31 000000673 905__ $$a/rest/prod/q8/11/kj/62/q811kj62r 000000673 909CO $$ooai:digitalcollections.ohsu.edu:673$$pstudent-work 000000673 956__ $$aGet Accessible Copy$$uhttps://ohsu.libwizard.com/f/requestaccessibledocument 000000673 980__ $$aTheses and Dissertations