Rare variants analysis of cutaneous malignant melanoma genes in Parkinson's disease

Lubbe, S.J. et al. (2016) Rare variants analysis of cutaneous malignant melanoma genes in Parkinson's disease. Neurobiology of Aging, 48, 222.e1-222.e7. (doi: 10.1016/j.neurobiolaging.2016.07.013) (PMID:27640074) (PMCID:PMC5096891)

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A shared genetic susceptibility between cutaneous malignant melanoma (CMM) and Parkinson's disease (PD) has been suggested. We investigated this by assessing the contribution of rare variants in genes involved in CMM to PD risk. We studied rare variation across 29 CMM risk genes using high-quality genotype data in 6875 PD cases and 6065 controls and sought to replicate findings using whole-exome sequencing data from a second independent cohort totaling 1255 PD cases and 473 controls. No statistically significant enrichment of rare variants across all genes, per gene, or for any individual variant was detected in either cohort. There were nonsignificant trends toward different carrier frequencies between PD cases and controls, under different inheritance models, in the following CMM risk genes: BAP1, DCC, ERBB4, KIT, MAPK2, MITF, PTEN, and TP53. The very rare TYR p.V275F variant, which is a pathogenic allele for recessive albinism, was more common in PD cases than controls in 3 independent cohorts. Tyrosinase, encoded by TYR, is the rate-limiting enzyme for the production of neuromelanin, and has a role in the production of dopamine. These results suggest a possible role for another gene in the dopamine-biosynthetic pathway in susceptibility to neurodegenerative Parkinsonism, but further studies in larger PD cohorts are needed to accurately determine the role of these genes/variants in disease pathogenesis.

Item Type:Articles
Additional Information:S.J.Lubbe, V.Escott-Price, A.Brice, T.Gasser, A.M.Pittman, J.Bras, J.Hardy, P.Heutink, N.M.Wood, A.B. Singleton, D.G.Grosset C.B.Carroll, M.H.Law F.Demenais , M.M. Iles on behalf of the Melanoma Meta-Analysis Consortium ; D.T. Bishop, J. Newton-Bishop, N.M. Williams and H.R. Morris for the International Parkinson's Disease Genomics Consortium.
Glasgow Author(s) Enlighten ID:Grosset, Dr Donald
Authors: Lubbe, S.J., Escott-Price, V., Brice, A., Gasser, T., Pittman, A.M., Bras, J., Hardy, J., Heutink, P., Wood, N.M., Singleton, A.B., Grosset, D.G., Carroll, C.B., Law, M.H., Demenais, F., Iles, M.M., Bishop, D.T., Newton-Bishop, J., Williams, N.M., and Morris, H.R.
College/School:College of Medical Veterinary and Life Sciences > Institute of Neuroscience and Psychology
Journal Name:Neurobiology of Aging
ISSN (Online):1558-1497
Published Online:28 July 2016
Copyright Holders:Copyright © 2016 The Authors
First Published:First published in Neurobiology of Aging 48:222.e1-222.e7
Publisher Policy:Reproduced under a Creative Commons License
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