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作为SETD5的候选病理因子,SETD5的高免疫组织化学表达是脂质肉瘤脱差和预后的候选病理因素
Makoto Abe1,2, Naoto Kubota1,2, Ken Yamazaki1
1Division of Molecular Pathology, Research Institute, Tochigi Cancer Center, Utsunomiya, Tochigi, Japan.
Pathology international
|December 30, 2025
概括
含有SET域5 (SETD5) 表达的SET域在脂肉瘤亚型中升高,并且与非分化脂肉瘤 (DDLPS) 的生存率较差相关. 在这些瘤中,SETD5可能表明脱差和预后.
科学领域:
- 在瘤学瘤学.
- 分子病理学分子病理学
- 癌症研究 癌症研究
背景情况:
- 含有5的SET域 (SETD5) 是一种染色质调节剂,与脂肪细胞分化有关.
- 在脂肪肉瘤中SETD5的作用,特别是其免疫组织化学表达和预后价值,还不清楚.
- 脂肉瘤是源自脂肪细胞的软组织肉瘤,具有不同程度的分化和预后.
研究的目的:
- 为了研究SETD5在各种脂类肉瘤亚型和良性脂肪细胞瘤中的免疫组织化学表达模式.
- 确定SETD5表达在脂质瘤中的预后意义,重点关注非分化脂质瘤 (DDLPS).
- 评估SETD5作为一种潜在的生物标志物,用于脱差和患者在脂肪肉瘤的结果.
主要方法:
- 用免疫组织化学分析了100种脂肪细胞瘤中的SETD5表达,包括DDLPS,WDLPS,myxoid脂肪瘤,多形脂肪瘤和脂质瘤.
- 使用免疫反活性得分量化SETD5表达水平.
- 进行了统计分析,以将SETD5表达与瘤类型,分化状态和患者存活率 (总体存活率和无病存活率) 相关联.
主要成果:
- 在正常脂肪组织中,SETD5表达不存在,在脂瘤中表达较低,但与脂瘤相比,在区分良好的脂类瘤 (WDLPS) 中显著高.
- 在DDLPS的无差异化成分中,相对于其有差异化的对应物,SETD5表达明显升高.
- 形脂肪肉瘤表现出最高的SETD5表达水平. 在DDLPS中,高SETD5表达在非分化区域与较差的整体存活率相关.
- 在DDLPS中,SETD5表达与无病存活率没有显著的相关性.
结论:
- SETD5的免疫组合化学表达与脂肪肉瘤亚型和分化程度有显著的关联.
- 提高SETD5表达,特别是在DDLPS的非分化成分中,与不利的整体存活率有关.
- 现在,SETD5成为一种潜在的预后生物标志物,用于脱差和脂肪肉瘤患者的治疗结果.
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