Hereditary pancreatitis caused by triplication of the trypsinogen locus

被引:151
作者
Le Marechal, Cedric
Masson, Emmanuelle
Chen, Jian-Min [1 ]
Morel, Frederic
Ruszniewski, Philippe
Levy, Philippe
Ferec, Claude
机构
[1] INSERM, U613, F-29220 Brest, France
[2] Univ Bretagne Occidentale, Fac Med Brest & Sci Sante, F-29238 Brest, France
[3] CHU Brest, Hop Morvan, Lab Genet Mol & Histocompatibil, F-29220 Brest, France
[4] Etablissement Francais Sang Bretagne, F-29220 Brest, France
[5] CHRU Brest, Hop Morvan, Serv Cytogenet Cytol & Biol Reprod, F-29238 Brest, France
[6] Hop Beaujon, AP HP, Pole Maladies Appareil Digest, F-92118 Clichy, France
关键词
D O I
10.1038/ng1904
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Hereditary pancreatitis has been reported to be caused by 'gain-of-function' missense mutations in the cationic trypsinogen gene (PRSS1). Here we report the triplication of a similar to 605-kb segment containing the PRSS1 gene on chromosome 7 in five families with hereditary pancreatitis. This triplication, which seems to result in a gain of trypsin through a gene dosage effect, represents a previously unknown molecular mechanism causing hereditary pancreatitis.
引用
收藏
页码:1372 / 1374
页数:3
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