Mutation screening of LKB1 gene in familial Peutz-Jeghers syndrome patients / 中华医学遗传学杂志
Chinese Journal of Medical Genetics
;
(6): 121-125, 2012.
Article
Dans Chinois
| WPRIM
| ID: wpr-295524
ABSTRACT
<p><b>OBJECTIVE</b>To screen for potential mutations of LKB1 gene in Chinese familial Peutz-Jeghers syndrome (PJS) patients and analyze their clinical manifestations.</p><p><b>METHODS</b>Eleven PJS families were collected and genomic DNA of peripheral blood was extracted. Typically mucosal pigmentation and hamartomatous polyps were present in all 11 probands. Mutation screening of the probands were carried out by PCR and direct sequencing. Two hundred and fifty healthy adults were enrolled as normal controls, for whom genomic DNA of peripheral blood was also extracted. PCR-denaturing high performance liquid chromatography was carried out to verify the mutation identified in the patients.</p><p><b>RESULTS</b>Nine germline mutations were identified in eight PJS patients, which included 7 point mutations, 1 deletion and 1 insertion. Among these, 4 were considered to be pathogenic, of which 2 were de novel, 4 were considered to be polymorphism, and 1 was uncertain.</p><p><b>CONCLUSION</b>LKB1 gene mutations with pathogenic effect are a common cause of familial PJS in Chinese patients. Most mutations are point mutations.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Syndrome de Peutz-Jeghers
/
Données de séquences moléculaires
/
Séquence nucléotidique
/
Chine
/
Protein-Serine-Threonine Kinases
/
Mutation germinale
/
Prédisposition génétique à une maladie
/
Génétique
Type d'étude:
Etude diagnostique
/
Étude de dépistage
Limites du sujet:
Adolescent
/
Adulte
/
Femelle
/
Humains
/
Mâle
Pays comme sujet:
Asie
langue:
Chinois
Texte intégral:
Chinese Journal of Medical Genetics
Année:
2012
Type:
Article
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