尼姆叶糖蛋白破坏耗尽的CD8+T细胞介导的癌症干细胞侵略性
Mohona Chakravarti1, Saurav Bera1, Sukanya Dhar1
1Department of Immunoregulation and Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI), Kolkata, India.
Molecular cancer research : MCR
|May 14, 2024
概括
尼姆叶糖蛋白 (NLGP) 免疫疗法有效地向由耗尽的CD8+T细胞 (TEX) 加重的癌症干细胞 (CSCs). NLGP重新编程CSC,使它们对化疗敏感,并保护它们免受毒性.
科学领域:
- 免疫学 免疫学 免疫学
- 癌症生物学 癌症生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 耗尽的CD8+T细胞 (TEX) 会加剧癌症干细胞 (CSC) 的毒性,从而构成治疗挑战.
- 尼姆叶糖蛋白 (NLGP) 是一种来自植物的免疫调节剂,已经显示出免疫依赖的瘤限制.
- 对于NLGP对TEX进行重编程以针对CSC的潜力,需要进行调查.
研究的目的:
- 调查NLGP免疫疗法在向TEX诱导的CSC中的有效性.
- 阐明NLGP影响CSC和TEX的机制.
- 评估NLGP与化疗结合的治疗潜力.
主要方法:
- 使用了体内B16-F10黑色素瘤模型和体内TEX/CSC共同培养系统.
- 评估了NLGP治疗对CSC克隆原性,耐药性和关键标志物 (PDL1,OCT4,SOX2) 的影响.
- 进行了细胞循环分析,西部涂抹和Dectin-1,Notch1和mTOR通路调查.
主要成果:
- 在体内和体外,NLGP的使用显著降低了CSC的毒性.
- 在NLGP下调中,CSC的克隆原性,多药耐药性,PDL1,OCT4和SOX2.
- 经过NLGP培养的TEX诱导CSC进入S相,增强对5-甲 (5FU) 的敏感性并显示脏保护.
结论:
- NLGP免疫疗法有效地缓解了TEX诱导的CSC恶化.
- NLGP重新编程CSC,增加它们对化疗的敏感性,并减轻5FU的毒性.
- 德-1介导的NLGP作用突出了针对T细胞耗尽的新型免疫治疗点.
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