由于新型SMAD7突变导致的单一性炎症性肠病
Bipresh Chakraborty1, Pragnya Ghosh Dastidar1, Shamik Banerjee1
1Department of Gastroenterology, School of Digestive & Liver Diseases, Institute of Postgraduate Medical Education & Research, Kolkata, India.
ACG case reports journal
|December 17, 2025
概括
在一个患有非常早期发病的炎症性肠病 (IBD) 的孩子身上发现了SMAD7基因的新型突变. 这一发现强调了在早期发病的IBD病例中进行基因检测的重要性.
科学领域:
- 遗传学 是一个遗传学.
- 儿科 儿科 儿科
- 胃肠病学 胃肠病学
背景情况:
- 非常早期发病的炎症性肠病 (IBD) 通常涉及单一基因突变,其中10-15%的病例与遗传原因有关.
- 下一代测序 (NGS) 对于识别IBD的新型致病突变至关重要.
- 在对标准治疗无反应的儿科IBD患者中,应考虑单基性疾病.
研究的目的:
- 在儿童中报告一个非常早期发病的克罗恩病病例.
- 通过全外因组测序来识别疾病的遗传基础.
- 研究SMAD7基因在儿科IBD中的作用.
主要方法:
- 使用下一代测序 (NGS) 进行全外体序列 (WES) 测序.
- 在一个患有慢性血性腹和发育不良的4岁女孩身上诊断克罗恩病的临床诊断.
- 对生物药物治疗反应的评估.
主要成果:
- 在母亲中发现了一种新型的致病突变,该突变是对抗十角性同类7 (SMAD7) 基因的.
- 这位被诊断患有克罗恩病的患者对生物疗法产生了积极反应.
- 在SMAD7中发现的突变代表了IBD非常早期发作的新遗传因素.
结论:
- 基因分析,特别是NGS,对于诊断非常早期的IBD至关重要,特别是在免疫抑制反应不佳的情况下.
- SMAD7基因与IBD的病变发生有关,并具有潜在的治疗标.
- 早期识别单一性原因可以指导儿童IBD个性化治疗策略.
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