清细胞细胞癌分级系统的转录和蛋白质代谢决定因素
Giuseppe Lucarelli1, Francesco Lasorsa1, Martina Milella1
1Department of Precision and Regenerative Medicine and Ionian Area - Urology, Andrology and Kidney Transplantation Unit, University of Bari "Aldo Moro", Bari, Italy.
Urologic oncology
|March 13, 2025
概括
清晰细胞细胞癌 (ccRCC) 呈现了依赖级别的代谢重编程,高级瘤显示出不同的代谢特征. 这些代谢变化和ccRCC中的肉类瘤特征影响患者的存活率,提供潜在的治疗点.
科学领域:
- 在瘤学瘤学.
- 代谢学 代谢学 代谢学
- 分子生物学分子生物学
背景情况:
- 病理等级是清晰细胞细胞癌 (ccRCC) 的关键预后因素,预测癌症特异性生存率.
- 了解低级 (LG) 和高级 (HG) ccRCC之间的代谢差异对于确定治疗点至关重要.
研究的目的:
- 在ccRCC中识别依赖级别的代谢特征.
- 为了将代谢变化与基因和蛋白质表达变异相关联.
- 为了研究ccRCC中sarcomatoid特征的预后价值.
主要方法:
- 40个ccRCC样本的代谢分析,分层按核级 (LG和HG).
- 从公共数据集和通过免疫组织化学/免疫光学分析基因和蛋白质表达数据.
- 使用卡普兰-梅尔和考克斯回归进行ccRCC和类ccRCC (sRCC) 亚型的生存分析 (CSS,PFS).
主要成果:
- 与LG ccRCC相比,HG ccRCC表现出更明显的华堡效应,改变了克雷布斯循环中间体,尿素循环重新编程和修改了谷甲代谢.
- HG瘤积累了减少的谷氨和肉酸衍生物,而LG瘤的长链和中链脂肪酸水平较高.
- 高类 (HS) ccRCC瘤与CSS和PFS显著下降有关,类成分丰富是不利的预后因素.
结论:
- ccRCC表现出明显的等级特定的代谢重编程,突出显示了潜在的治疗点,特别是在HG瘤中.
- 代谢途径和分子变化与ccRCC等级密切相关.
- 将sRCC分为HS和LS组的分类提供了有价值的预后信息.
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