在人类恶性黑色素瘤的发展中对模拟太阳辐射的巨细胞反应
Sherman Chu1,2, Tatyana A Petukhova3, Jeremy S Bordeaux1
1Department of Dermatology, University Hospitals Cleveland Medical Center, Cleveland, OH, USA.
Archives of clinical & experimental dermatology
|June 13, 2023
概括
黑色素瘤中的巨细胞产生干扰素- (IFN-γ),影响瘤细胞和淋巴细胞. 然而,黑色素瘤患者显示皮肤免疫细胞透减少,尽管IFN-γ信号.
科学领域:
- 免疫学 免疫学 免疫学
- 皮肤病学 皮肤病学
- 在瘤学瘤学.
背景情况:
- 干扰素- (IFN-γ) 已经在癌症中发挥了争论的作用,可能起到抗瘤或促瘤的作用.
- 鼠类模型表明,来自巨细胞的IFN-γ有助于黑色素的产生.
- 这项研究调查了人类恶性黑色素瘤中巨细胞衍生IFN-γ的产生.
研究的目的:
- 为了确定巨细胞在人类原发性恶性黑色素瘤中是否产生IFN-γ.
- 检查IFN-γ与免疫细胞和黑色素瘤下游标记物的同局部化.
- 为了比较黑色素瘤患者和对照者之间对模拟太阳辐射 (SSR) 的免疫细胞透反应.
主要方法:
- 来自原发性黑色素瘤组织的活检样本的分析.
- 量化IFN-γ,巨细胞 (CD68+),淋巴细胞 (CD3+) 和IFN-γ特征的同位定位.
- 对黑色素瘤患者与健康对照者的模拟太阳辐射 (SSR) 皮肤反应的评估.
主要成果:
- 瘤透的巨细胞和淋巴细胞与IFN-γ在原发性黑色素瘤中的同位.
- 黑色素瘤细胞表达了IFN-γ反应元素 (MIG/CXCL9) 和酸化的STAT-1 (P-STAT-1).
- 与对照组相比,黑色素瘤患者的SSR暴露诱导了CXCL9,但减少了巨细胞透.
结论:
- 黑色素瘤中的周巨细胞产生IFN-γ,黑色素细胞对它做出反应.
- 黑色素瘤患者的皮肤表现出减少白细胞透,尽管有炎症信号.
- 未来的黑色素瘤免疫调节策略需要考虑复杂的细胞交叉通话.
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