碳素乙脂酶混合1 (CEL-HYB1) 单体类型为慢性胰腺炎带来不同的风险
Gergő Berke1, Máté Sándor2, Xunjun K Xiao3
1Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary.
Scientific reports
|December 27, 2024
概括
混合CEL-HYB1等位基因,特别是Thr488-Thr548单位基因,在欧洲很常见,并增加了慢性胰腺炎的风险. 虽然Thr488-Ile548单元型较为罕见,但对这种疾病的风险要高得多.
科学领域:
- 遗传学 是一个遗传学.
- 胃肠病学 胃肠病学
- 分子生物学分子生物学
背景情况:
- 碳素脂酶 (CEL) 基因的CEL-HYB1混合等位基因与慢性胰腺炎 (CP) 有关.
- 以前的研究表明,CEL-HYB1中的氨基酸位置488和548决定了病原性,其中Thr488-Ile548与CP相关,Thr488-Thr548被认为是良性的.
- 功能分析表明,Thr488是CEL-HYB1错误折叠和内质网膜 (ER) 应激的主要驱动因素.
研究的目的:
- 在匈牙利队列中调查CEL-HYB1单元类型与慢性胰腺炎的关联.
- 分析不同欧洲人群中CEL-HYB1单元型 (Thr488-Thr548和Thr488-Ile548) 的分布和致病性.
- 为了澄清特定的CEL-HYB1单元类型在CP病原和ER压力中的作用.
主要方法:
- 病例控制研究分析了匈牙利CP患者和对照者的CEL-HYB1载体频率.
- 来自现有的欧洲队列 (德国,波兰,法国) 的CEL-HYB1载体的哈普洛型分析.
- 涉及转染细胞的功能研究,以评估不同CEL-HYB1单元型的ER应激诱导.
主要成果:
- 在匈牙利CP病例 (2.8%) 与对照 (0.8%) 中观察到显著更高的CEL-HYB1载体频率,赔率比率为3.6.
- 所有匈牙利的CEL-HYB1阳性携带者都具有Thr488-Thr548单元型.
- 在德国和波兰的CP病例中发现了Thr488-Ile548单元型,但在对照组中没有发现,而Thr488-Thr548单元型存在于法国的CP病例和对照组中.
结论:
- CEL-HYB1的Thr488-Thr548亚型在欧洲普遍存在,并使慢性胰腺炎的风险增加近四倍.
- 虽然Thr488-Ile548单元型在区域上受到限制,但它与慢性胰腺炎的风险明显增加有关.
- 这两种CEL-HYB1单元类型都诱导了ER压力,而Thr488-Ile548表现出更强大的效果,突出了ER压力在CP发展中的作用.
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