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多omics分析破译细胞间通信调节氧化应激促进口腔状细胞癌的进展
Hongrong Zhang1,2, Yemei Qian1,2, Yang Zhang3
1Department of Oral and Maxillofacial Surgery, Affiliated Stomatology Hospital of Kunming Medical University, Kunming, China.
NPJ precision oncology
|November 21, 2024
概括
口腔状细胞癌 (OSCC) 涉及癌细胞和纤维细胞之间的复杂相互作用. AKR1C3+细胞促进入侵,而早期的CAF可能最初会抑制它们,从而揭示出新的治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 基因组学就是基因组学.
背景情况:
- 口腔状细胞癌 (OSCC) 是一种普遍存在的头癌,复发率高,患者的治疗结果差.
- 了解OSCC瘤微环境中的细胞和分子动力学对于开发有效的治疗方法至关重要.
研究的目的:
- 在OSCC中创建表皮细胞和癌症相关纤维细胞 (CAF) 的综合图谱,使用集成的单细胞RNA和空间转录基因数据.
- 阐明特定细胞群之间的复杂相互作用,驱动瘤入侵和OSCC中的进展.
主要方法:
- 单细胞RNA测序 (scRNA-seq) 和空间转录组学的综合分析.
- 在癌症和正常口腔组织中识别和描述不同的上皮细胞和CAF群体.
- 分析细胞通信通路和参与瘤-瘤相互作用的分子机制.
主要成果:
- 鉴定了瘤前端的AKR1C3+上皮细胞,表现出拷贝数变化和不良预后指标,表明在入侵中发挥了作用.
- 发现了一种新的早期CAF组 (OSCC_Normal),其特征是ADH1B+,MFAP4+和PLA2G2A+标记物.
- 揭示了一个复杂的相互作用,其中OSCC_Normal CAFs可以通过IGF1/IGF1R轴抑制上皮细胞的氧化还原通路,从而导致氧化应激,而AKR1C3+细胞使用ITGA6/ITGB4来抵消这种作用,以促进入侵.
结论:
- 这项研究揭示了OSCC瘤微环境中的复杂细胞交叉,突出了AKR1C3+上皮细胞和OSCC_Normal CAFs在癌症进展中的作用.
- 这些发现为口腔状细胞癌的侵袭机制提供了新的见解,并表明瘤微环境中的潜在治疗点.
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