Localization of a susceptibility locus for hepatocellular carcinoma to chromosome 4q in a hepatitis B hyperendemic area
Journal
Oncogene
Journal Volume
25
Journal Issue
22
Pages
3219-3224
Date Issued
2006
Author(s)
Lo M.-T.
Chang H.-C.
Liaw Y.-F.
Lin S.-M.
Lee S.-D.
Lin C.-L.
Yang S.-Y.
Chen C.-J.
Abstract
Chromosome 4q is one of the most common regions with a high frequency of allelic loss in hepatocellular carcinoma (HCC). To identify the HCC-susceptibility locus on chromosome 4q, we have performed linkage and family-based association analyses on Chinese families with HCC from Taiwan, where hepatitis B is hyperendemic. Using 77 microsatellite markers spanning chromosome 4q on 52 multiplex families, we found suggestive evidence of linkage to 4q22.3-28.1 with a maximum two-point heterogeneity LOD (HLOD) score of 2.55 at marker D4S3240 on chromosome 4q25. Multipoint analyses with microsatellite markers in the region 4q22.3-28.1 resulted in a maximum HLOD score of 3.12 and a maximum nonparametric linkage (NPL) Z score of 1.98 (pointwise P=0.0080; region-wide empirical P=0.021) for D4S3240. The evidence for linkage to D4S3240 was seen mostly in a subset of 28 families lacking affected parents, which showed multipoint HLOD and NPL scores of 3.25 and 2.79 (pointwise P=0.0028; region-wide empirical P=0.008), respectively. Family-based association analyses of the 77 microsatellite markers in 191 families (53 multiplex plus 138 singleton families) using the pedigree disequilibrium test provide further support for observed linkage. Additional genotyping in the 52 multiplex families informative for linkage analyses was performed for 29 single-nucleotide polymorphisms around D4S3240. A common haplotype (at markers rs7442180 and rs221330) positioned ?873 kb away from D4S3240 was associated with HCC, with P=0.0074. ? 2006 Nature Publishing Group All rights reserved.
SDGs
Other Subjects
adolescent; adult; aged; article; cancer susceptibility; child; Chinese; chromosome 4q; chromosome loss; controlled study; endemic disease; family; female; gene frequency; gene linkage disequilibrium; gene location; genetic analysis; genetic association; genetic heterogeneity; genetic linkage; genetic susceptibility; genotype; haplotype; hepatitis B; heterozygosity loss; human; infant; linkage analysis; liver cell carcinoma; major clinical study; male; microsatellite marker; newborn; nonparametric test; pedigree; priority journal; scoring system; single nucleotide polymorphism; Taiwan
Publisher
Nature Publishing Group
Type
journal article
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