口腔医学研究 ›› 2026, Vol. 42 ›› Issue (6): 534-536.DOI: 10.13701/j.cnki.kqyxyj.2026.06.013

• 病例报告 • 上一篇    下一篇

MEN1基因突变致同胞共患颌骨骨化纤维瘤2例

张兰兰1, 刘明莉1, 崔庆赢1, 李亮1, 孙思扬1, 施延安1, 李柯成1, 张永辉2, 王卫红1*   

  1. 1.云南省口腔医学重点实验室,昆明医科大学附属口腔医院口腔颌面外科 云南 昆明 650106;
    2.云南省口腔医学重点实验室,昆明医科大学附属口腔医院影像科 云南 昆明 650031
  • 收稿日期:2025-08-05 出版日期:2026-06-28 发布日期:2026-06-23
  • 通讯作者: *王卫红,E-mail:wangweihong@kmmu.edu.cn
  • 作者简介:张兰兰(1997~),女,河南驻马店人,博士在读,研究方向:颌面部肿瘤。
  • 基金资助:
    云南省卫健委医学领军人才项目(编号:L-2018010);云南省科技厅昆明医科大学基础研究联合专项重点项目(编号:202501AY070001-016)

MEN1 Mutation in Two Siblings with Ossifying Fibroma of the Jaw

ZHANG Lanlan1, LIU Mingli1, CUI Qingying1, LI Liang1, SUN Siyang1, SHI Yan'an1, LI Kecheng1, ZHANG Yonghui2, WANG Weihong1*   

  1. 1. Yunnan Key Laboratory of Stomatology & Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital, Kunming Medical University, Kunming 650106, China;
    2. Yunnan Key Laboratory of Stomatology & Department of Radiology, The Affiliated Stomatology Hospital, Kunming Medical University, Kunming 650031, China
  • Received:2025-08-05 Online:2026-06-28 Published:2026-06-23

摘要: 本研究在2例经病理确诊的颌骨骨化纤维瘤患者中发现多发性内分泌肿瘤Ⅰ型(multiple endocrine neoplasia type 1,MEN1)基因第10外显子错义突变(p.Thr541Ala),全外显子测序结合生物信息学分析提示该突变具有致病性。通过AlphaFold 2蛋白结构预测发现突变导致结构域空间位移及疏水核心破坏,提示MEN1功能缺陷可能参与颌骨骨化纤维瘤发病机制。这一发现为纤维-骨性病损的分子诊断提供了新依据,但其具体致病机制仍需进一步研究验证。

关键词: 骨化纤维瘤, MEN1基因, 基因突变

Abstract: This study identified a heterozygous missense mutation (p.Thr541Ala) in exons 10 of the multiple endocrine neoplasia type 1 (MEN1) gene in two male patients diagnosed with histopathologically confirmed ossifying fibroma of the jaw. Whole-exome sequencing combined with bioinformatics analysis confirmed the pathogenic potential of this variant. AlphaFold 2-based structural modeling demonstrated that this variant induces conformational changes in the functional domain and disrupts the hydrophobic core, suggesting MEN1 functional impairment may contribute to the pathogenesis ofossifying fibroma of the jaw. These findings provide novel insights into the molecular diagnosis of fibro-osseous lesions. However, the precise pathogenic mechanisms underlying this association require further investigation.

Key words: ossifying fibroma, MEN1 gene, gene mutation