Zhang Chao, Song Yisu, Cui Xiaobo, Wang Yina, Liu Jiang, Shen Zhouji
Department of Nephrology, The affiliated Lihuili Hospital of Ningbo University, Ningbo, 315000, Zhejiang, China.
Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Hangzhou, 310006, China.
Sci Rep. 2025 Jul 1;15(1):20533. doi: 10.1038/s41598-025-06051-4.
Clear cell renal cell carcinoma (ccRCC) is a prevalent malignant tumor in the field of urology. The effect of cell heterogeneity on the prognosis and reaction to treatment of ccRCC in large populations is still unclear. By analyzing public single cell RNA-sequencing and bulk RNA-sequencing data with the Scissor algorithm, we have identified three distinct prognosis related cancer cell subtypes which play an indispensable role on tumor metastasis, immune response and proliferation respectively. Besides, regulatory T cells (Tregs) and matrix producing cancer associated fibroblasts (matCAFs) were also recognized as crucial cell subtypes in the tumor microenvironment (TME). Moreover, potential interactions between Scissor + cells and other cells in TME were investigated to uncover regulatory mechanisms via 'Cell Chat' and cell2location algorithm. It is interesting that the interferon gamma signaling pathway and p53 signaling pathway contribute to the Scissor + transition of Tregs and matCAFs. The distinct activated transcription factor patterns were uncovered as well as the essential ligand-receptor pairs in the interactions among different cell subtypes, such as CXCL12-CXCR4 and COL6A2-SDC4. Then, we developed a risk score signature consisting of 10 genes, utilizing a 101-combination machine learning computational framework, which showed promising results in predicting the prognosis of patients. Furthermore, our study revealed variations in immune cell infiltration and the expression of immune related factors within the tumor microenvironment between different risk score groups, as well as the different sensitivity to the immunotherapy. In the end, we suggested Rapamycin as the additional therapy for the advanced ccRCC. In conclusion, our study created a signature to provide opportunities for predicting prognosis and improving treatments of ccRCC.
透明细胞肾细胞癌(ccRCC)是泌尿外科领域一种常见的恶性肿瘤。细胞异质性对大量人群中ccRCC预后和治疗反应的影响仍不清楚。通过使用Scissor算法分析公开的单细胞RNA测序和批量RNA测序数据,我们确定了三种不同的与预后相关的癌细胞亚型,它们分别在肿瘤转移、免疫反应和增殖中发挥不可或缺的作用。此外,调节性T细胞(Tregs)和产生基质的癌症相关成纤维细胞(matCAFs)也被认为是肿瘤微环境(TME)中的关键细胞亚型。此外,通过“Cell Chat”和cell2location算法研究了TME中Scissor+细胞与其他细胞之间的潜在相互作用,以揭示调节机制。有趣的是,干扰素γ信号通路和p53信号通路促成了Tregs和matCAFs的Scissor+转变。还发现了不同细胞亚型之间相互作用中独特的激活转录因子模式以及重要的配体-受体对,如CXCL12-CXCR4和COL6A2-SDC4。然后,我们利用101组合机器学习计算框架开发了一个由10个基因组成的风险评分特征,在预测患者预后方面显示出有前景的结果。此外,我们的研究揭示了不同风险评分组之间肿瘤微环境中免疫细胞浸润和免疫相关因子表达的差异,以及对免疫治疗的不同敏感性。最后,我们建议将雷帕霉素作为晚期ccRCC的辅助治疗。总之,我们的研究创建了一个特征,为预测ccRCC的预后和改善治疗提供了机会。
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