Abstract
Background: Increased cancer risk has been reported in Parkinson's disease (PD) patients carrying the leucine rich repeat kinase 2 (LRRK2) G2019S mutation (LRRK2-PD) in comparison with idiopathic PD (IPD). It is unclear whether the elevated risk would be maintained when compared with unaffected controls. Methods: Cancer outcomes were compared among 257 LRRK2-PD patients, 712 IPD patients, and 218 controls recruited from 7 LRRK2 consortium centers using mixed-effects logistic regression. Data were then pooled with a previous study to examine cancer risk between 401 LRRK2-PD and 1946 IPD patients. Results: Although cancer prevalence was similar among LRRK2-PD patients (32.3%), IPD patients (27.5%), and controls (27.5%; P = 0.33), LRRK2-PD had increased risks of leukemia (odds ratio [OR] = 4.55; 95% confidence interval [CI], 1.46–10.61) and skin cancer (OR = 1.61; 95% CI, 1.09–2.37). In the pooled analysis, LRRK2-PD patients had also elevated risks of leukemia (OR = 9.84; 95% CI, 2.15–44.94) and colon cancer (OR = 2.34; 95% CI, 1.15–4.74) when compared with IPD patients. Conclusions: The increased risks of leukemia as well as skin and colon cancers among LRRK2-PD patients suggest that LRRK2 mutations heighten risks of certain cancers.
Original language | English |
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Pages (from-to) | 1392-1398 |
Number of pages | 7 |
Journal | Movement Disorders |
Volume | 34 |
Issue number | 9 |
DOIs | |
State | Published - 1 Sep 2019 |
Externally published | Yes |
Keywords
- G2019S mutation
- LRRK2 gene
- Parkinson's disease
- colon cancer
- leukemia
- pooled analysis
ASJC Scopus subject areas
- Neurology
- Clinical Neurology