CALB2通过瘤微环境的炎症重编程驱动胰腺癌转移
Jinxin Tao1, Yani Gu2, Zeyu Zhang1
1General Surgery Department, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
Journal of experimental & clinical cancer research : CR
|October 2, 2024
概括
这项研究揭示了CALB2通过促进炎症驱动胰腺癌转移. 抑制CXCL14为胰腺管腺癌 (PDAC) 患者提供了一个有前途的治疗策略,患者有CALB2过度表达.
科学领域:
- 在瘤学瘤学.
- 癌症生物学 癌症生物学
- 免疫学 免疫学 免疫学
背景情况:
- 胰腺管腺癌 (PDAC) 由于早期转移,预后不佳.
- 慢性炎症会产生瘤微环境 (TME),推动PDAC的生长和扩散.
- 鉴定炎症性TME和生物标志物的调节剂对于向治疗至关重要.
研究的目的:
- 研究CALB2在调节炎性TME和促进PDAC转移中的作用.
- 阐明CALB2影响PDAC进展的分子机制.
- 评估针对CALB2介导途径的潜在治疗策略.
主要方法:
- 单细胞RNA测序和组织微阵列用于分析PDAC中的CALB2表达.
- 在体外共同培养系统 (CAF,PDO) 和体内模型研究CALB2效应.
- 分子测试 (CUT&RUN,RNA测序) 和功能测试以确定机制.
- 具有免疫能力的KPC有机体异位移植模型,以评估免疫抑制和治疗疗效.
主要成果:
- 在PDAC CAF和癌细胞中,CALB2的表达很高,与预后不佳和免疫抑制有关.
- CALB2激活炎症性纤维细胞表型,促进PDAC细胞迁移和生长.
- 在癌细胞中,CALB2通过IL6-STAT3上调自身的表达,并激活Ca2+-CXCL14轴,驱动转移和免疫抑制.
- 抑制CXCL14显著降低了PDAC转移并改善了体内生存率.
结论:
- CALB2是炎症重编程的关键调节者,驱动PDAC转移性进展.
- 针对CALB2-CXCL14轴,可能使用αCXCL14单克隆抗体和凝胺,是对CALB2-过度表达PDAC的一种有前途的治疗策略.
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