Cancer Cell Int:与骨肉瘤微环境相关的免疫相关预后生物标记物

2020-05-26 MedSci原创 MedSci原创

骨肉瘤是一种高侵袭性的骨肿瘤,多见于儿童和青少年。在过去30年里,骨肉瘤的治疗和结局一直没有改变。骨肉瘤与免疫微环境之间的关系可能是治疗骨肉瘤的关键。

骨肉瘤是一种高侵袭性的骨肿瘤,多见于儿童和青少年。在过去30年里,骨肉瘤的治疗和结局一直没有改变。骨肉瘤与免疫微环境之间的关系可能是治疗骨肉瘤的关键。

 

我们使用ESTIMATE算法计算了Target数据库中的骨肉瘤病例的免疫和基质评分。然后,我们使用CIBERSORT算法探索肿瘤微环境,分析骨肉瘤的免疫浸润。根据免疫评分和基质评分来确定差异性表达基因(DEGs)。利用检索相互作用基因数据库(STRING)检索工具评估蛋白-蛋白相互作用(PPI)信息,利用Molecular Complex Detection(MCODE)插件筛选Cytoscape中的PPI网络枢纽模块。在一个独立的GSE39058队列中验证了该基因签名的预后价值。进行了基因集富集分析(GSEA)以研究信号通路中的中枢基因。

 

结果,研究人员从目标数据集中获得的83个骨肉瘤样本中,鉴定出137个DEG,包括134个上调基因和3个下调基因。功能性富集分析和PPI网络表明,这些基因主要参与了中性粒细胞脱胶和中性粒细胞激活参与免疫反应,并参与了神经活性配体-受体相互作用和金黄色葡萄球菌感染。

 

总之,我们的研究建立了一个免疫相关的基因标志物来预测骨肉瘤的预后,这可能是个体治疗的重要靶点。

 

原始出处:

 

Weifeng HongHong Yuan, et al., Immune-related Prognosis Biomarkers Associated With Osteosarcoma Microenvironment. Cancer Cell Int. 2020 Mar 16;20:83. doi: 10.1186/s12935-020-1165-7. eCollection 2020.

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    2020-09-14 维他命
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    2021-04-27 wjywjy
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