单细胞分析发现了与膀癌的发展和进展相关的基底细胞过渡状态
Yang Li1,2, Pengjie Shi1,2, Yuhong Ding1,2
1Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Journal of translational medicine
|November 10, 2024
概括
研究人员确定了正常膀上皮质中的过渡细胞状态,称为Basal_I,对基底细胞分化至关重要. 这一发现为膀癌 (BC) 病原和潜在的治疗点提供了新的见解.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
背景情况:
- 膀癌 (BC) 是一种常见的恶性瘤,具有显著的细胞异质性.
- 对于BC的现有单细胞多组数据仍然未得到充分探索,这阻碍了对其分子机制的理解.
- 迫切需要揭示BC病原体并确定新的治疗策略.
研究的目的:
- 重新分析现有的单细胞数据集,以发现对膀癌的新见解.
- 为了确定正常膀上皮细胞中的过渡细胞状态.
- 探索这种过渡状态在膀癌发展和进展中的作用.
主要方法:
- 从正常小鼠膀中检索和分析了三组单细胞转录组数据集.
- 在24930个细胞上进行了质量控制,批量效应消除,子组分析和伪时空分析.
- 进行了细胞间通信,转录因子分析,免疫组织化学和生存分析.
主要成果:
- 识别了多种上皮细胞亚型,包括基底细胞,雨细胞和中间细胞.
- 发现了从基底细胞到细胞的发育轨迹,Basal_I被确定为过渡状态.
- 突出了Basal_I在细胞与细胞相互作用中的作用,并确定了与BC进展相关的关键配体-受体对.
- 在Basal_I中发现关键转录因子的高表达与BC阶段和预后相关,通过免疫组织化学证实.
结论:
- 在正常的小鼠膀基底细胞中确定了一个过渡状态 (Basal_I),可能与BC发生和发展有关.
- 这一发现为了解BC病变的发生提供了关键的线索.
- 该研究为BC研究和治疗提供了潜在的分子机制和治疗点.
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