在人类中完全失去SLC30A8可以改善葡萄糖代谢和β细胞功能
Lindsey B Lamarche1, Christopher Koch1, Shareef Khalid2,3
1Biomedical Research at Novartis, Cambridge, MA, USA.
Diabetologia
|September 29, 2025
概括
完全丧失SLC30A8功能可以预防2型糖尿病. 这种遗传洞察力表明,SLC30A8的治疗抑制可能是2型糖尿病的安全有效治疗方法.
科学领域:
- 遗传学和人类健康
- 代谢疾病 代谢疾病
- 分子生物学分子生物学
背景情况:
- 已知SLC30A8中的部分功能丧失变体可以预防2型糖尿病.
- 完整的SLC30A8功能丧失对2型糖尿病风险和相关代谢表型的影响需要进一步研究.
研究的目的:
- 调查SLC30A8的完全功能丧失 (LoF) 变体与2型糖尿病风险之间的关联.
- 探索SLC30A8 LoF对人类葡萄糖代谢和胰岛素分泌的影响.
主要方法:
- 巴基斯坦基因组资源 (PGR) 生物库 (145 037 名参与者) 对 SLC30A8 LoF 变种和相关表型的分析.
- 涉及SLC30A8 LoF异构体,同构体及其家族成员的基因型回忆研究,包括口服葡萄糖耐受性测试 (OGTTs).
主要成果:
- 确定了18个SLC30A8淘汰赛 (包括同位素) 和1024个LoF变体的异位素.
- 显著降低SLC30A8LoF异构体和同构体的2型糖尿病风险,具有基因剂量依赖的保护作用.
- 在LOF载体中,OGTT显示了基因剂量依赖的葡萄糖水平降低和胰岛素水平升高.
结论:
- SLC30A8 LoF与改善葡萄糖刺激的胰岛素分泌和维护β细胞功能有关,独立于BMI.
- 这些发现支持治疗SLC30A8抑制的潜力,包括完全淘汰,作为一种安全有效的策略来管理2型糖尿病.
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