Adina Wise, Robert Ortega, D. Raymond, Alessandra Cervera, Emma Thorn, Katherine Leaver, David S. Russell, S. Bressman, J. Crary, R. Saunders-Pullman
{"title":"LRRK2 G2019S帕金森病中的多发性硬化症和同源变异携带者的孤立黑质变性","authors":"Adina Wise, Robert Ortega, D. Raymond, Alessandra Cervera, Emma Thorn, Katherine Leaver, David S. Russell, S. Bressman, J. Crary, R. Saunders-Pullman","doi":"10.3389/fneur.2024.1450654","DOIUrl":null,"url":null,"abstract":"LRRK2 variants have been associated with immune dysregulation as well as immune-related disorders such as IBD. A possible relationship between multiple sclerosis (MS) and LRRK2 PD has also been suggested. Further, neuropathologic studies of homozygous LRRK2 G2019S carriers with Parkinson’s disease (PD) are rare, and there are no systematic reports of clinical features in those cases.We investigated the co-occurrence of PD and MS in our research cohort and report on two cases of MS in LRRK2 PD as well as neuropathological findings for one.MS preceded PD in 1.4% (2/138) of participants with LRRK2 G2019S variants, and in none (0/638) with idiopathic PD (p = 0.03). One case with MS and PD was a LRRK2 G2019S homozygous carrier, and neuropathology showed evidence of substantia nigra pars compacta degeneration and pallor without Lewy deposition, as well as multiple white matter lesions consistent with MS-related demyelination.The increased prevalence of MS in LRRK2 PD further supports an important role for immune function for LRRK2 PD. This co-occurrence, while rare, suggests that MS may be an expression of the LRRK2 G2019S variant that includes both MS and PD, with MS predating features diagnostic of PD. The neuropathology suggests that the MS-related effects occurred independent of synuclein deposition. Importantly, and in addition, the neuropathological results not only support the MS diagnosis, but provide further evidence that Lewy body pathology may be absent even in homozygote LRRK2 carriers.","PeriodicalId":503840,"journal":{"name":"Frontiers in Neurology","volume":"120 10","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Multiple sclerosis in LRRK2 G2019S Parkinson’s disease and isolated nigral degeneration in a homozygous variant carrier\",\"authors\":\"Adina Wise, Robert Ortega, D. Raymond, Alessandra Cervera, Emma Thorn, Katherine Leaver, David S. Russell, S. Bressman, J. Crary, R. Saunders-Pullman\",\"doi\":\"10.3389/fneur.2024.1450654\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"LRRK2 variants have been associated with immune dysregulation as well as immune-related disorders such as IBD. A possible relationship between multiple sclerosis (MS) and LRRK2 PD has also been suggested. Further, neuropathologic studies of homozygous LRRK2 G2019S carriers with Parkinson’s disease (PD) are rare, and there are no systematic reports of clinical features in those cases.We investigated the co-occurrence of PD and MS in our research cohort and report on two cases of MS in LRRK2 PD as well as neuropathological findings for one.MS preceded PD in 1.4% (2/138) of participants with LRRK2 G2019S variants, and in none (0/638) with idiopathic PD (p = 0.03). One case with MS and PD was a LRRK2 G2019S homozygous carrier, and neuropathology showed evidence of substantia nigra pars compacta degeneration and pallor without Lewy deposition, as well as multiple white matter lesions consistent with MS-related demyelination.The increased prevalence of MS in LRRK2 PD further supports an important role for immune function for LRRK2 PD. This co-occurrence, while rare, suggests that MS may be an expression of the LRRK2 G2019S variant that includes both MS and PD, with MS predating features diagnostic of PD. The neuropathology suggests that the MS-related effects occurred independent of synuclein deposition. Importantly, and in addition, the neuropathological results not only support the MS diagnosis, but provide further evidence that Lewy body pathology may be absent even in homozygote LRRK2 carriers.\",\"PeriodicalId\":503840,\"journal\":{\"name\":\"Frontiers in Neurology\",\"volume\":\"120 10\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-08-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Frontiers in Neurology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3389/fneur.2024.1450654\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Frontiers in Neurology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3389/fneur.2024.1450654","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Multiple sclerosis in LRRK2 G2019S Parkinson’s disease and isolated nigral degeneration in a homozygous variant carrier
LRRK2 variants have been associated with immune dysregulation as well as immune-related disorders such as IBD. A possible relationship between multiple sclerosis (MS) and LRRK2 PD has also been suggested. Further, neuropathologic studies of homozygous LRRK2 G2019S carriers with Parkinson’s disease (PD) are rare, and there are no systematic reports of clinical features in those cases.We investigated the co-occurrence of PD and MS in our research cohort and report on two cases of MS in LRRK2 PD as well as neuropathological findings for one.MS preceded PD in 1.4% (2/138) of participants with LRRK2 G2019S variants, and in none (0/638) with idiopathic PD (p = 0.03). One case with MS and PD was a LRRK2 G2019S homozygous carrier, and neuropathology showed evidence of substantia nigra pars compacta degeneration and pallor without Lewy deposition, as well as multiple white matter lesions consistent with MS-related demyelination.The increased prevalence of MS in LRRK2 PD further supports an important role for immune function for LRRK2 PD. This co-occurrence, while rare, suggests that MS may be an expression of the LRRK2 G2019S variant that includes both MS and PD, with MS predating features diagnostic of PD. The neuropathology suggests that the MS-related effects occurred independent of synuclein deposition. Importantly, and in addition, the neuropathological results not only support the MS diagnosis, but provide further evidence that Lewy body pathology may be absent even in homozygote LRRK2 carriers.