BJC:肿瘤浸润中性粒细胞不利于转移性结直肠癌的抗VEGF治疗

2018-10-31 MedSci MedSci原创

免疫浸润与肿瘤抗血管生成治疗的获得性耐药产生有关。BJC近期发表了一篇文章,研究结直肠癌(CRC)患者转移灶中性粒细胞浸润与贝伐单抗治疗后患者生存之间的相关性。

免疫浸润与肿瘤抗血管生成治疗的获得性耐药产生有关。BJC近期发表了一篇文章,研究直肠癌CRC)患者转移灶中性粒细胞浸润与贝伐单抗治疗后患者生存之间的相关性。

研究共纳入85例转移性直肠癌患者,患者分为接受单纯化疗(n  = 39)或联合贝伐单抗(n  = 46)治疗两个队列。分析肿瘤中CD177 +中性粒细胞浸润与临床结局的相关性。在肿瘤模型中通过免疫组化研究中性粒细胞浸润对抗VEGF或抗VEGF /Ang2治疗的影响。研究结果表明,与CD177-转移的患者相比,存在CD177 +浸润并接受贝伐单抗治疗的CRC患者的预后显着降低。BI-880治疗可以减少与贝伐单抗治疗相关的缺氧的发生,并改善异种移植物中的血管正常化情况。此外,去除中性粒细胞或BI-880治疗在抗VEGF耐药的肿瘤模型中可以恢复治疗敏感性。

文章最后认为,这些研究结果表明CD177可以作为贝伐单抗的生物标志物,并提示VEGF / Ang2抑制可以作为克服中性粒细胞相关抗血管生成治疗耐药的治疗策略。

原始出处:

Lars Mortimer Schiffmann, Melanie Fritsch, et al. Tumour-infiltrating neutrophils counteract anti-VEGF therapy in metastatic colorectal cancer. BJC. October 2018 doi: https://doi.org/10.1038/s41416-018-0198-3

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    2018-11-02 d830379
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    2018-11-01 kafei

    学习了谢谢

    0

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