机构:[1]Capital Med Univ, Beijing Tian Tan Hosp, Dept Neurosurg, Beijing, Peoples R China;[2]China Natl Clin Res Ctr Neurol Dis NCRC ND, Beijing, Peoples R China;国家神经系统疾病临床医学研究中心国家神经系统疾病临床医学研究中心首都医科大学附属天坛医院[3]Beijing Key Lab Brain Tumor, Beijing, Peoples R China
Von Hippel-Lindau (VHL) disease is an autosomal dominantly inherited neoplastic disorder characterized by marked phenotypic variability and age-dependent penetrance. This disease is caused by germline mutations in the VHL tumor suppressor gene. Systematic physical examinations, imaging assessments and molecular genetic tests for the VHL gene were performed in a large Chinese VHL family. The examined Chinese VHL family, which has 25 members from four generations, including 7 diagnosed VHL patients and 2 asymptomatic mutation carriers. The average ages of first onset for generations I, II, and III were 37, 30 and 16, respectively. The male:female ratio among VHL patients was 6:1. Molecular genetic investigations detected the c.433C > T [p.Q145X] nonsense mutation in the VHL gene. Molecular modeling of the VHL-ElonginC- ElonginB-HIF-1 alpha complex predicted that the p.Q145X mutation markedly alters the L7 loop structure of the beta-domain of the VHL protein (pVHL), destabilizes the VHL-HIF-1 alpha complex, and induces the truncation of pVHL. We speculate that the p.Q145X nonsense mutation leads to relatively obvious familial aggregation. This mutation causes the type I phenotype of VHL disease and is associated with a high risk of retinal and central nervous system (CNS) hemangioblastomas (HGBs) and visceral cysts, but a low risk of renal cell carcinoma. Moreover, within a VHL family, the average ages of first onset became younger in successive generations, and the CNS HGBs are more likely to occur in male patients.
基金:
National Key Technology Research and Development Program of the Ministry of Science and Technology of ChinaNational Key Technology R&D Program [2014BAI04B01]; Beijing Natural Science Foundation (General Program) [7152050]
第一作者机构:[1]Capital Med Univ, Beijing Tian Tan Hosp, Dept Neurosurg, Beijing, Peoples R China;[2]China Natl Clin Res Ctr Neurol Dis NCRC ND, Beijing, Peoples R China;[3]Beijing Key Lab Brain Tumor, Beijing, Peoples R China
通讯作者:
通讯机构:[1]Capital Med Univ, Beijing Tian Tan Hosp, Dept Neurosurg, Beijing, Peoples R China;[2]China Natl Clin Res Ctr Neurol Dis NCRC ND, Beijing, Peoples R China;[3]Beijing Key Lab Brain Tumor, Beijing, Peoples R China
推荐引用方式(GB/T 7714):
Zhang Qing,Li De-Ling,Kang Peng,et al.Clinical presentation and mutation analysis of VHL disease in a large Chinese family[J].JOURNAL OF NEURO-ONCOLOGY.2015,125(2):369-375.doi:10.1007/s11060-015-1924-9.
APA:
Zhang, Qing,Li, De-Ling,Kang, Peng,Ji, Nan,Yang, Jun...&Jia, Gui-Jun.(2015).Clinical presentation and mutation analysis of VHL disease in a large Chinese family.JOURNAL OF NEURO-ONCOLOGY,125,(2)
MLA:
Zhang, Qing,et al."Clinical presentation and mutation analysis of VHL disease in a large Chinese family".JOURNAL OF NEURO-ONCOLOGY 125..2(2015):369-375