当前位置: X-MOL 学术Horm. Metab. Res. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Clinical Profile and Mutations Associated with Multiple Endocrine Neoplasia-Type1 (MEN1) and Their First-Degree Relatives at Risk of Developing MEN1: A Prospective Study
Hormone and Metabolic Research ( IF 2.0 ) Pub Date : 2021-04-14 , DOI: 10.1055/a-1402-0183
Asha Hesarghatta Shyamasunder 1 , Rekha Pai 2 , Hemalatha Ramamoorthy 2 , Dhananjayan Sakhti 2 , Marie Therese Manipadam 2 , Nitin Kapoor 1 , Thomas Vizhalil Paul 1 , Felix Jebasingh 1 , Nihal Thomas 1 , Deepak Thomas Abraham 3 , Mazhuvanchary Jacob Paul 3 , Ari George Chacko 4 , Krishna Prabhu 4 , Simon Rajaratnam 1
Affiliation  

Multiple Endocrine Neoplasia type-1 (MEN1) is an autosomal dominant disorder with a combined occurrence of tumours of parathyroid glands, pancreatic islets, and anterior pituitary. About 90% of these patients carry mutations in the MEN1 gene, though the spectrum is not well defined in India. Forty clinically suspected cases of MEN1 were enrolled prospectively over six years; 32 patients (23 index-cases and nine affected relatives) with≥2 classical endocrine tumours of MEN1 were considered definite, and eight were categorised as ‘MEN1-like’. Details of their clinical presentation, treatment and mutational analysis including MEN1 gene, 3′ and 5′ untranslated regions (UTR) of MEN1, CDKN1B, and CaSR genes were collated. Asymptomatic first-degree relatives were also screened. Among the 32 definite MEN1 patients, all had primary hyperparathyroidism, 22 (68.7%) had gastroentero-pancreatic neuroendocrine tumours, and 21 (66%) had pituitary adenoma. Of the 23 definite index-cases, 13 (56.5%) carried mutations in the MEN1 gene. Five of nine affected first-degree relatives (55.5%), and four of 10 asymptomatic relatives (40%) also had MEN1 mutations. Seven of 10 MEN1 mutation-negative definite index-cases harboured p.V109G polymorphism in the CDKN1B gene. All eight MEN1-like cases were negative for mutations and large deletions in MEN1, mutations in 3′ and 5′ UTR of MEN1, CaSR and CDKN1B genes. The study has helped to clearly document the pattern of mutations among Indian MEN1 patients. However, the absence of MEN1 mutation in ~44% of cases and the presence of p.V109G polymorphism in CDKN1B gene raise the question whether such polymorphisms could independently contribute to pathogenesis.

中文翻译:

与多发性内分泌肿瘤 1 型 (MEN1) 相关的临床特征和突变及其有发展为 MEN1 风险的一级亲属:一项前瞻性研究

多发性内分泌肿瘤 1 型 (MEN1) 是一种常染色体显性遗传疾病,同时伴有甲状旁腺、胰岛和垂体前叶肿瘤。这些患者中约有 90% 携带 MEN1 基因突变,尽管在印度并未明确定义该突变谱。在 6 年内前瞻性地招募了 40 例临床疑似 MEN1 病例;32 名患者(23 名指示病例和 9 名受影响的亲属)患有≥2 个 MEN1 经典内分泌肿瘤被认为是明确的,8 名被归类为“MEN1 样”。整理了他们的临床表现、治疗和突变分析的详细信息,包括 MEN1 基因、MEN1 的 3' 和 5' 非翻译区 (UTR)、CDKN1B 和 CaSR 基因。还筛查了无症状的一级亲属。在 32 名确诊的 MEN1 患者中,均患有原发性甲状旁腺功能亢进症,22 人 (68.7%) 患有胃肠胰神经内分泌肿瘤,21 人 (66%) 患有垂体腺瘤。在 23 个明确的指标病例中,13 个 (56.5%) 携带 MEN1 基因突变。9 名一级亲属中有 5 名受累 (55.5%),10 名无症状亲属中有 4 名 (40%) 也有 MEN1 突变。10 个 MEN1 突变阴性明确索引病例中有 7 个在 CDKN1B 基因中具有 p.V109G 多态性。所有八例 MEN1 样病例的 MEN1 突变和大缺失、MEN1、CaSR 和 CDKN1B 基因的 3' 和 5' UTR 突变均为阴性。该研究有助于清楚地记录印度 MEN1 患者的突变模式。然而,在约 44% 的病例中不存在 MEN1 突变以及 CDKN1B 基因中 p.V109G 多态性的存在提出了此类多态性是否可以独立促成发病机制的问题。7%) 患有胃肠-胰腺神经内分泌肿瘤,21 人 (66%) 患有垂体腺瘤。在 23 个明确的指标病例中,13 个 (56.5%) 携带 MEN1 基因突变。9 名一级亲属中有 5 名受累 (55.5%),10 名无症状亲属中有 4 名 (40%) 也有 MEN1 突变。10 个 MEN1 突变阴性明确索引病例中有 7 个在 CDKN1B 基因中具有 p.V109G 多态性。所有八例 MEN1 样病例的 MEN1 突变和大缺失、MEN1、CaSR 和 CDKN1B 基因的 3' 和 5' UTR 突变均为阴性。该研究有助于清楚地记录印度 MEN1 患者的突变模式。然而,在约 44% 的病例中不存在 MEN1 突变以及 CDKN1B 基因中 p.V109G 多态性的存在提出了此类多态性是否可以独立促成发病机制的问题。7%) 患有胃肠-胰腺神经内分泌肿瘤,21 人 (66%) 患有垂体腺瘤。在 23 个明确的指标病例中,13 个 (56.5%) 携带 MEN1 基因突变。9 名一级亲属中有 5 名受累 (55.5%),10 名无症状亲属中有 4 名 (40%) 也有 MEN1 突变。10 个 MEN1 突变阴性明确索引病例中有 7 个在 CDKN1B 基因中具有 p.V109G 多态性。所有八例 MEN1 样病例的 MEN1 突变和大缺失、MEN1、CaSR 和 CDKN1B 基因的 3' 和 5' UTR 突变均为阴性。该研究有助于清楚地记录印度 MEN1 患者的突变模式。然而,在约 44% 的病例中不存在 MEN1 突变以及 CDKN1B 基因中 p.V109G 多态性的存在提出了此类多态性是否可以独立促成发病机制的问题。
更新日期:2021-04-15
down
wechat
bug