免疫检查点调节在狗皮肤囊细胞瘤回归过程中具有关键作用
Benjamin Diehl1, Florian Hansmann1
1Institute of Veterinary Pathology, Faculty of Veterinary Medicine, Leipzig University, Leipzig, Germany.
Frontiers in veterinary science
|July 4, 2024
概括
这项研究研究了免疫检查点和干扰素反应在狗皮肤囊细胞瘤 (CCH) 回归. 减少CD80表达和增加的亡与回归相关,这表明这些因素在CCH瘤清除中发挥了作用.
科学领域:
- 兽医瘤学 兽医瘤学
- 免疫学 免疫学 免疫学
- 皮肤病理学 皮肤病理学
背景情况:
- 狗皮质细胞瘤 (CCH) 是年轻犬群中常见的良性瘤,其特征是快速生长和自发回归.
- 免疫反应,包括免疫检查点和干扰素信号传递,在瘤发育和回归中起着至关重要的作用,但其在CCH中的作用尚未完全理解.
研究的目的:
- 为了确定免疫检查点分子和干扰素介导的免疫反应分子参与CCH回归.
- 阐明狗皮肤囊细胞瘤自发回归背后的机制.
主要方法:
- 用免疫组织化学和RNA in situ杂交来分析来自年轻狗的48个CCH样本.
- 研究了编程死亡蛋白联体1 (PD-L1),CD80,CD86,Survivin,Ki-67,切割的caspase-3,CD3和mx1的表达,以及干扰素-玛转录.
主要成果:
- 新生细胞表达了PD-L1,CD80,CD86和生存.
- 减少CD80表达和增加分裂的卡斯巴-3阳性细胞与瘤回归相关.
- 在瘤细胞中发现了Mx1转录和蛋白质,而在T细胞中检测到了干扰素-玛转录.
结论:
- 免疫检查点,特别是CD86和PD-L1,以及减少CD80表达,影响CCH回归.
- 在回归过程中建议激活亡.
- Mx1表达表明抗细胞信号在CCH瘤免疫力中的潜在作用.
关键词:
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