CD142 识别了新生代形瘤细胞,揭示了新生代和流体细胞之间的相互作用,推动了增殖
Mushriq Al-Jazrawe1,2, Steven Xu1, Raymond Poon1
1Hospital for Sick Children, Program in Developmental & Stem Cell Biology, Toronto, Ontario, Canada.
Cancer research communications
|June 28, 2023
概括
研究人员将CD142确定为一种表面标记物,用于区分瘤与瘤中瘤细胞. 这种方法有助于研究瘤-肌瘤相互作用,并确定癌症的治疗点.
科学领域:
- 癌症生物学 癌症生物学
- 瘤微环境 瘤微环境
- 中介细胞瘤 中介细胞瘤
背景情况:
- 由于缺乏特定的标记物,在中细胞瘤中难以区分瘤 (瘤) 和肌层 (非瘤) 细胞.
- 了解瘤-肌瘤相互作用对于癌症的进展和治疗至关重要.
- 德斯莫伊德瘤是以β-catenin稳定突变为特征的介质细胞瘤.
研究的目的:
- 识别表面标记物,可以区分突变性瘤细胞和desmoid瘤中的 stromal 细胞.
- 开发一种方法来量化和分离这些独特的细胞亚群.
- 为了研究可溶性因素在瘤-肌瘤相互作用中的作用.
主要方法:
- 高通量表面抗原查来自人类desmoid瘤的单细胞衍生殖民地.
- 利用CD142作为突变细胞识别和分离的标记,通过细胞分类进行分离.
- 分析突变和非突变纤维细胞的分泌体.
主要成果:
- CD142被确定为突变的desmoid瘤细胞的高度表达标记物,与β-catenin活性相关.
- 基于CD142的细胞分类成功地分离了突变种群,甚至从以前没有检测到突变的样本中.
- 通过STAT6激活,发现PTX3,一种来自肌体的因子,可以通过STAT6激活来增强突变细胞增殖.
结论:
- 已经建立了一种使用CD142的敏感方法,用于量化和区分中介细胞瘤中的瘤细胞和 stromal 细胞.
- 这种方法有助于研究瘤-肌瘤相互作用,并确定调节性可溶性因子.
- 像PTX3这样的流体衍生因子代表调节突变细胞增殖的潜在治疗点.
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