在单相和双相突肉瘤中瘤微环境的比较性表征
Anna Kosyreva1,2, Enar Jumaniyazova1, Alexandra Sentyabreva1,2
1Research Institute of Molecular and Cellular Medicine, Peoples' Friendship University of Russia, 6 Miklukho-Maklaya Street, 117198 Moscow, Russia.
International journal of molecular sciences
|October 29, 2025
概括
突肉瘤 (SSs) 根据亚型显示出不同的瘤微环境. 双相SS具有更多的淋巴细胞,而单相SS表现出更多的M2巨细胞,并表达出更高水平的与癌症相关的基因.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 癌症生物学 癌症生物学
背景情况:
- 瘤微环境 (TME) 显著影响癌症的进展和治疗反应.
- 了解不同突肉瘤 (SS) 组织学亚型的免疫性质对于向治疗至关重要.
- 以前的研究还没有完全阐明单相和双相SS之间的TME差异.
研究的目的:
- 为了比较评估单相和双相突肉瘤的瘤微环境.
- 在不同SS亚型的TME内识别不同的分子和细胞模式.
- 根据亚型特定的基因表达来探索潜在的治疗点.
主要方法:
- 使用免疫组织化学 (IHC),流细胞计和实时PCR分析了九名SS患者的生物材料.
- 免疫细胞透的量化,包括白细胞,巨细胞,CD4+ T细胞和CD8+ T细胞.
- 对瘤标记物 (CDKN2A,EGFR,PDGFRL) 和巨细胞标记物 (ARG1,NOS2) 的基因表达的评估.
主要成果:
- 单相和双相SS都被CD45+白细胞和CD68+巨细胞透.
- 双相SSs显示了显著更高的CD4+和CD8+淋巴细胞数量和表达的E-cadherin.
- 单相SSs表现出更强的维门丁表达,瘤标记物的表达更高 (CDKN2A,EGFR,PDGFRL),以及M1/M2巨细胞标记物的增加 (NOS2,ARG1).
结论:
- 单相和双相SS具有不同的分子配置和不同程度的免疫细胞透.
- 双相SS的特征是淋巴细胞的存在,而单相SS则显示出更大的M2巨细胞透.
- 单相SSs具有与癌症相关的基因 (CDKN2A,EGFR,PDGFRL) 的更高表达,表明潜在的治疗点.
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