介质干细胞分泌的IL-10对免疫检查点分子的影响
Mutiara Indah Sari1, Nelva Karmila Jusuf2, Delfitri Munir3
1Philosophy Doctor in Medicine Program, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia.
概括
含有互白素-10的介质干细胞分泌体,可以通过降低计划死亡-1 (PD-1) 和计划死亡联体-1 (PD-L1) 在大鼠中的表达来降低败血症中的免疫抑制.
科学领域:
- 免疫学 免疫学 免疫学
- 败血症研究 败血症研究
- 再生医学是一种再生医学.
背景情况:
- 败血症诱导的免疫抑制与增加的免疫检查点分子编程死亡-1 (PD-1) 和编程死亡连接物-1 (PD-L1) 有关.
- 介酶干细胞 (MSC) 秘密体,特别是互白素-10 (IL-10),具有已知的免疫调节特性.
研究的目的:
- 调查MSC内IL-10对大鼠败血症模型中PD-1和PD-L1表达的影响.
- 评估MSC分泌物的潜力,作为治疗性药物,用于与败血症相关的免疫抑制.
主要方法:
- 使用了48只雄性大鼠,分为假,对照 (败血症诱导) 和两组接受不同剂量的MSC分泌IL-10的治疗组.
- 诱导性败血症,并用MSC秘密或安慰剂治疗大鼠.
- 在败血症诱导后48小时采集了血液样本,以分析PD-1和PD-L1表达水平.
主要成果:
- 与对照组相比,在接受MSC分泌的IL-10治疗的老鼠中观察到PD-1相对表达的下降,尽管在统计学上并不显著.
- 与对照组相比,治疗组的PD-L1mRNA相对表达也下降了.
结论:
- 给药MSC分泌的IL-10在败血症模型中显示了减少PD-1和PD-L1表达的趋势.
- 这些发现表明,MSC分泌体具有减轻败血症引起的免疫抑制的潜力.
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