皮洛斯通过增强癌症干细胞性来促进卵巢癌复发
Zhiqing Huang1,2, Olivia Byrd3, Sarah Tan3
1Division of Reproductive Sciences, Department of Obstetrics and Gynecology, Duke University School of Medicine, Durham, USA. zhiqing.huang@duke.edu.
Scientific reports
|December 4, 2023
概括
在复发性卵巢癌中,质蛋白 (POSTN) 的升高促进了细胞的攻击性行为和干性. 向瘤微环境中的POSTN可能为卵巢癌提供一种新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 癌症生物学 癌症生物学
- 瘤微环境 瘤微环境
背景情况:
- 表皮卵巢癌 (OC) 的致死性源于复发和化学抵抗,涉及癌症干细胞和瘤微环境 (TME).
- 编码细胞外矩阵蛋白的基因Periostin (POSTN) 在与初级瘤相比,在复发性OC中显示显著增加表达.
研究的目的:
- 调查高细胞外POSTN对OC细胞功能,表型和干细胞的影响.
- 探索POSTN在TME中的作用及其作为治疗点的潜力.
主要方法:
- 来自配对的初级和复发性OC组织的基因表达微阵列数据的分析.
- 用含有高水平POSTN (CMPOSTNhigh) 的条件介质培养OC细胞,与控制介质 (CMCTL) 相比.
- 在小鼠中评估OC细胞迁移,入侵,化学抵抗,亡,干细胞种群 (CD133+),脂质代谢 (FASN),AKT通路活性和瘤生长.
主要成果:
- CMPOSTN高培养的OC细胞表现出增加的迁移,入侵,化学抵抗和干细胞种群,随着细胞亡的减少.
- 增加的POSTN与脂肪酸合成酶 (FASN) 的表达增加和AKT通路激活相关.
- 与CMPOSTNhigh培养的OC细胞与CMCTL培养的细胞相比,在小鼠中产生了较大的瘤体积.
结论:
- 细胞外POSTN的升高驱动了更具攻击性的OC细胞行为,并增强了癌症干细胞性.
- 在OC复发期间增加的肌肉POSTN有助于疾病的进展,并代表了潜在的治疗点.
- 匹配的初级复发性OC组织分析强调了理解复发期间分子变化的重要性,以开发新的治疗方法.
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