Mao XY, Zhang YF, Mao GP, Wang HF, Ning SB.
STK11 gene mutations in patients with Peutz-Jeghers syndrome.
Shijie Huaren Xiaohua Zazhi 2015;
23:332-337. [DOI:
10.11569/wcjd.v23.i2.332]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To identify point mutations in the STK11 gene coding region in patients with Peutz-Jeghers syndrome (PJS).
METHODS: The sequences of the coding region of the STK11 gene in 36 PJS patients were analyzed using PCR and DNA sequencing and compared with the normal sequence of the STK11 gene.
RESULTS: Of the 36 patients with PJS, 22 showed STK11 gene mutations in the coding region, including 3 patients having the same mutation and 19 patients with a unique mutation site. The remaining 14 patients were not found to have mutations in the STK11 gene coding region. Of the 22 patients with STK11 gene mutations, 5 showed frame-shift mutations, of which 2 were included in SNP gene databases, and 17 showed missense mutations, of which 8 were changed to a termination codon and 4 were included in SNP gene databases. Among the gene mutations identified in our patients, 15 were not included in gene databases and were considered new mutations. The gene mutation rate was 62.5% in patients with a family history and 60.0% in sporadic cases (P > 0.05).
CONCLUSION: Mutations of the STK11 gene are a major cause of PJS. The newly found missense and frame-shift mutations may be associated with PJS.
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