骨质细胞远程为肺瘤提供促进癌症的SiglecF高中性粒细胞
Camilla Engblom1,2, Christina Pfirschke1, Rapolas Zilionis3,4
1Center for Systems Biology, Massachusetts General Hospital Research Institute and Harvard Medical School, Boston, MA 02114, USA.
概括
肺腺癌远程激活骨质细胞,这些骨质细胞提供促进瘤的中性粒细胞. 减少表达骨素的细胞抑制了中性粒细胞的反应和肺瘤的生长.
科学领域:
- 癌症学
- 免疫学
- 骨生物学
背景情况:
- 瘤中的骨髓细胞可以促进癌症生长.
- 系统性宿主环境在瘤生长中的作用尚不清楚.
- 当地免疫与瘤的相互作用得到了广泛的研究.
研究的目的:
- 研究系统性宿主环境对肺腺癌生长的贡献.
- 确定非转移性肺癌影响骨微环境的机制.
- 探索骨质细胞和特定中性粒细胞子集在癌症进展中的作用.
主要方法:
- 在小鼠和70名癌症患者中研究了肺腺癌.
- 研究癌症诱导的骨活动变化.
- 分析了表达骨素 (Ocn+) 的骨质细胞的作用.
- 研究了Ocn+细胞对瘤透的SiglecFhigh中性粒细胞的影响.
- 评估了Ocn+细胞减少对瘤生长的影响.
主要成果:
- 即使没有骨转移,肺腺癌也会增加骨活动.
- 这种癌症诱导的骨表达细胞参与了这种癌症诱导的骨表型.
- Ocn+细胞远程提供高中性细胞,促进癌症.
- 减少Ocn+细胞数量抑制了中性粒细胞的反应和肺瘤的增长.
结论:
- 骨质细胞作为肺癌进展的远程调节者.
- 高中性粒细胞是骨质细胞驱动的前瘤反应的关键因子.
- 针对骨质细胞与中性细胞的相互作用可能为肺癌提供新的治疗策略.
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