Genome-wide scan for familial nasopharyngeal carcinoma reveals evidence of linkage to chromosome 4
Nasopharyngeal carcinoma (NPC) occurs with high frequency in Asian populations, especially among people of Cantonese ancestry. In areas with high incidence, NPC clusters in families, which suggests that both geography and genetics may influence disease risk 1 , 2 , 3 , 4 , 5 , 6 . Although the HLA-B...
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Published in | Nature genetics Vol. 31; no. 4; pp. 395 - 399 |
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Main Authors | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
New York
Nature Publishing Group US
01.08.2002
Nature Publishing Group |
Subjects | |
Online Access | Get full text |
ISSN | 1061-4036 1546-1718 |
DOI | 10.1038/ng932 |
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Summary: | Nasopharyngeal carcinoma (NPC) occurs with high frequency in Asian populations, especially among people of Cantonese ancestry. In areas with high incidence, NPC clusters in families, which suggests that both geography and genetics may influence disease risk
1
,
2
,
3
,
4
,
5
,
6
. Although the
HLA-Bw46
locus is associated with increased risk of NPC
7
,
8
, no predisposing genes have been identified so far. Here we report the results of a genome-wide search carried out in families at high risk of NPC from Guangdong Province, China. Parametric analyses provide evidence of linkage to the
D4S405
marker on chromosome 4 with a logarithm of odds for linkage (lod) score of 3.06 and a heterogeneity-adjusted lod (hlod) score of 3.21. Fine mapping with additional markers flanking
D4S405
resulted in a lod score of 3.54 and hlod score of 3.67 for the region 4p15.1–q12. Multipoint nonparametric linkage analysis gives lod scores of 3.54 at
D4S405
(
P
= 5.4 × 10
−5
) and 4.2 at
D4S3002
(
P
= 1.1 × 10
−5
), which is positioned 4.5 cM away from
D4S405
. When Epstein–Barr virus antibody titer was included as a covariate, the lod scores reached 4.70 (
P
= 2.0 × 10
−5
) and 5.36 (
P
= 4.36 × 10
−6
) for
D4S405
and
D4S3002
, respectively. Our findings provide evidence of a major susceptibility locus for NPC on chromosome 4 in a subset of families. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 ObjectType-Article-2 ObjectType-Feature-1 content type line 23 |
ISSN: | 1061-4036 1546-1718 |
DOI: | 10.1038/ng932 |