RNF43 p.G659fs 通过 PI3K/AKT/mTOR 信号通路和 HLA-E 上调导致 MSI-high 结直肠癌中 NK 细胞功能障碍
RNF43 p.G659fs leads to natural killer cell dysfunction in MSI-high colorectal cancer through PI3K/AKT/mTOR signaling and HLA-E up-regulation.
CELL INTELLIGENCE · 肿瘤细胞治疗研究
肿瘤细胞治疗研究
英文原题:UBE2S emerges as a key driver in an NK cell-based prognostic model for clear cell renal cell carcinoma.
UBE2S emerges as a key driver in an NK cell-based prognostic model for clear cell renal cell carcinoma.
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我们的研究确定了 NK 细胞亚群和 UBE2S 是肾透明细胞癌(ccRCC)进展的关键因素,并建立了具有临床意义的 12 基因预后模型,为精准治疗提供了潜在靶点。
透明细胞肾细胞癌(ccRCC)具有高度异质性,用于风险分层和治疗指导的可靠生物标志物仍有限。
研究整合肿瘤及癌旁组织的单细胞 RNA 测序(scRNA-seq),并通过多个队列进行转录组验证。采用高维加权基因共表达网络分析(hdWGCNA)识别致病性免疫细胞亚群和候选基因。使用 CoxBoost 构建预后模型,并通过体外敲低实验验证 UBE2S 的功能。
scRNA-seq 揭示肿瘤微环境发生广泛重塑,并发现细胞间信号传导活跃的 NK 细胞亚群。hdWGCNA 识别出 12 个核心基因,富集于蛋白质加工和 MAPK 通路,其中 UBE2S 是最主要的驱动因子。基于 CoxBoost 的 12 基因特征在独立数据集中显示出稳定的预测准确性。功能实验显示,敲低 UBE2S 可抑制 ccRCC 细胞增殖和迁移;免疫相关性分析则将 UBE2S 与肿瘤免疫原性及基因组稳定性改变联系起来。
本研究确定 NK 细胞亚群和 UBE2S 是 ccRCC 进展的重要因素,并建立具有临床相关性的 12 基因预后模型,为精准治疗提供潜在靶点。
Clear cell renal cell carcinoma (ccRCC) is highly heterogeneous, and robust biomarkers for risk stratification and therapeutic guidance remain limited.
We integrated single-cell RNA sequencing (scRNA-seq) of tumor and adjacent tissues with multi-cohort transcriptomic validation. High-dimensional weighted gene co-expression network analysis (hdWGCNA) was applied to identify pathogenic immune subsets and candidate genes. Prognostic modeling was performed using CoxBoost, and UBE2S function was validated by in vitro knockdown assays.
scRNA-seq revealed extensive remodeling of the tumor microenvironment, highlighting NK cell subpopulations with strong intercellular signaling. hdWGCNA identified 12 core genes enriched in protein processing and MAPK pathways, with UBE2S emerging as the top driver. A CoxBoost-based 12-gene signature demonstrated robust predictive accuracy across independent datasets. Functionally, UBE2S knockdown suppressed ccRCC cell proliferation and migration, while immune correlation analyses linked UBE2S to altered tumor immunogenicity and genomic stability.
Our study identifies NK cell subsets and UBE2S as key contributors to ccRCC progression and establishes a clinically relevant 12-gene prognostic model, offering potential targets for precision therapy.
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