02011nas a2200229   4500000000100000008004100001100001100042700000900053700000900062700001100071700001000082700001400092700000900106700000900115700001200124700001100136700001100147700001200158245010100170520149600271022001401767       2014                            d1 aWang D1 aXu L1 aLv L1 aSu L-Y1 aFan Y1 aZhang D-F1 aBi R1 aYu D1 aZhang W1 aLi X-A1 aLi Y-Y1 aYao Y-G00aAssociation of the LRRK2 genetic polymorphisms with leprosy in Han Chinese from Southwest China.3 a<p>Leprosy is a chronic infectious and neurological disease that is caused by infection of Mycobacterium leprae (M. leprae). A recent genome-wide association study indicated a suggestive association of LRRK2 genetic variant rs1873613 with leprosy in Chinese population. To validate this association and further identify potential causal variants of LRRK2 with leprosy, we genotyped 13 LRRK2 variants in 548 leprosy patients and 1078 healthy individuals from Yunnan Province and (re-)analyzed 3225 Han Chinese across China. Variants rs1427267, rs3761863, rs1873613, rs732374 and rs7298930 were significantly associated with leprosy per se and/or paucibacillary leprosy (PB). Haplotype A-G-A-C-A was significantly associated with leprosy per se (P=0.018) and PB (P=0.020). Overexpression of the protective allele (Thr2397) of rs3761863 in HEK293 cells led to a significantly increased nuclear factor of activated T-cells' activity compared with allele Met2397 after lipopolysaccharides stimulation. Allele Thr2397 could attenuate 1-methyl-4-phenyl-1, 2, 3, 6-tetrahydropyridine-induced autophagic activity in U251 cells. These data suggest that the protective effect of LRRK2 variant p.M2397T on leprosy might be mediated by increasing immune response and decreasing neurotoxicity after M. leprae loading. Our findings confirm that LRRK2 is a susceptible gene to leprosy in Han Chinese population.Genes and Immunity advance online publication, 18 December 2014; doi:10.1038/gene.2014.72.</p>
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