深度免疫和RNA剖析揭示了与糖尿病相关并发症中不同的循环CD163+单细胞
Elisha Siwan1, Jencia Wong1,2, Belinda A Brooks2
1Greg Brown Diabetes and Endocrine Research Laboratory, Sydney Medical School (Central), Faculty of Medicine and Health, Charles Perkin Centre, The University of Sydney, Sydney, NSW 2006, Australia.
International journal of molecular sciences
|September 28, 2024
概括
糖尿病并发症改变CD163+单细胞,影响免疫调节和细胞周期基因. 这些发现揭示了糖尿病患者患有并发症的单细胞功能,这表明在组织损伤中发挥了作用.
科学领域:
- 免疫学 免疫学 免疫学
- 内分泌学 在内分泌学.
- 分子生物学分子生物学
背景情况:
- CD163是一种具有抗炎性质的清除受体,在单细胞/巨细胞上表达.
- 在糖尿病并发症中观察到CD163的失调.
- 了解CD163+单细胞特征对于糖尿病研究至关重要.
研究的目的:
- 在患有长期糖尿病的成年人中表征循环中的CD163+单细胞.
- 为了比较患有 (D+Comps) 和没有 (D-Comps) 糖尿病相关并发症的糖尿病患者之间的CD163+单细胞.
主要方法:
- 在CD163+单细胞上进行了RNA测序和质细胞计.
- 分析的重点是D+Comps与D-Comps组中的基因表达和蛋白质标记物.
- 用基因-蛋白质网络分析来确定关键的调节节点.
主要成果:
- 在D+Comps和D-Comps之间确定了10868个差异表达的基因.
- 与"中心细胞循环调节"相关的基因在D+Comps.中得到显著丰富.
- 在D+Comps中CD163+单细胞显示出招募和免疫调节标记物的表达减少 (例如,CCR5,CD11b,CD39,CD86).
结论:
- CD163+单细胞在糖尿病并发症中表现出不同的功能特征.
- 丰富的中心细胞循环基因和改变的miRNA表达表明细胞循环和亡的变化.
- 下调的单细胞激活和招募标记可能会导致与糖尿病相关的组织损伤.
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