Insights into early-onset colorectal cancer from a single-nucleus RNA-seq atlas of colorectal cancer across the age continuum.
早发性结直肠癌(EO-CRC,50岁前确诊)的全球发病率持续上升,但与其生物学特征相关的分子差异尚不明确。为此,研究者构建了涵盖八个十年年龄段、共189例原发性结直肠癌肿瘤(54例EO-CRC,135例AO-CRC)的单核RNA测序图谱,并按微卫星状态分层,同时考虑肿瘤侧别、分期、患者性别及新辅助治疗史。结果显示,在微卫星稳定肿瘤中,年轻患者肿瘤表现为基质比例增加、上皮比例减少,该结果在712例MSS CRC外部队列中得到多光谱免疫荧光和机器学习验证。年轻患者肿瘤上皮细胞的长非编码RNA和FN1表达增加,拷贝数改变异质性呈增加趋势。MSS左侧EO-CRC肿瘤的细胞间相互作用更多,上皮-间质转化相关信号通路(FN1/GDF/ACTIVIN)的细胞类型特异性相互作用增强。该高分辨率图谱揭示了结直肠癌的年龄相关特征,为理解EO-CRC生物学提供了资源。
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完整作者
Caroline B M Porter、Shane P Murphy、Jules Cazaubiel、Toni M Delorey、Liat Amir-Zilberstein、Orr Ashenberg、Liubou Klindziuk、Elizabeth Andrews、William Tan、Kosuke Matsuda、Atsushi Kondo、Satoko Ugai、Tomotaka Ugai、Shuji Ogino、Emily Finan、Jacques Deguine、Ewa Sicinska、Lauren K Brais、Jennifer S Thalappillil、Marios Giannakis、Ramnik J Xavier、Ana C Anderson、Kimmie Ng
作者机构
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA.
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Program in Molecular Pathological Epidemiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
- Department of Pathology, Keio University, Tokyo, Japan.
- Division of Integrative Cancer Science, National Cancer Center Research Institute, Tokyo, Japan.
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
- Division of Nutrition, Harvard Medical School, Boston, MA, USA.
- Institute of Science Tokyo, Tokyo, Japan.
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA, USA. rxavier@broadinstitute.org.
- Center for Computational and Integrative Biology, Department of Molecular Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. rxavier@broadinstitute.org.
- Gene Lay Institute of Immunology and Inflammation of Brigham and Women's Hospital, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA. rxavier@broadinstitute.org.
- Gene Lay Institute of Immunology and Inflammation of Brigham and Women's Hospital, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA. acanderson@bwh.harvard.edu.
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. acanderson@bwh.harvard.edu.
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA. Kimmie_Ng@DFCI.HARVARD.EDU.
技术路线
189例原发CRC肿瘤(54例EO-CRC、135例AO-CRC)单核RNA测序构建图谱→按微卫星状态分层并纳入肿瘤部位、分期、性别、新辅助治疗史,以连续或分类年龄建模分析→外部712例MSS CRC队列(18例EO-CRC、694例AO-CRC)经多光谱免疫荧光与机器学习验证基质/上皮比例差异
最近 5 个完整年度引用趋势
不含 2026 年,仅展示最近 5 个完整年度。

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