BMP2 signalling activation enhances bone metastases of non-small cell lung cancer.

BMP2 signalling activation enhances bone metastases of non-small cell lung cancer.
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BMP2信号激活增强非小细胞肺癌骨转移

DOI:
10.1111/jcmm.15702
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发表时间:
2020-09
影响因子:
5.3
通讯作者:
Fu L
Fu L
中科院分区:
医学2区
文献类型:
--
作者:
Huang F;Cao Y;Wu G;Chen J;CaihongWang;Lin W;Lan R;Wu B;Xie X;Hong J;Fu L

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当非小细胞肺癌(NSCLC)处于晚期时发生远处转移。骨转移是非小细胞肺癌最常见的转移灶之一,预后差。已有研究表明,骨形成蛋白2在非小细胞肺癌中的高表达与生存率相关,但骨形成蛋白2是否与非小细胞肺癌骨转移有关尚不清楚。在小鼠刘易斯肺癌的转移性骨肿瘤中发现BMP信号传导的激活,并预测人NSCLC的存活率差。BMP 2信号通路激活可促进刘易斯肺癌骨转移。此外,基质成纤维细胞分泌的BMP 2可促进NSCLC细胞的迁移和侵袭。此外,BMP 2与前成骨细胞和LLC结合,可促进巨噬细胞向破骨细胞分化,从而在NSCLC骨转移的溶骨机制中发挥作用。有趣的是,NSCLC细胞还可以将BMP 2富集到前成骨细胞中,以在成骨机制中发挥作用。我们的研究结果首次阐明了BMP 2信号在促进NSCLC骨转移中的作用机制。这些发现为通过抑制BMP 2信号传导预防NSCLC骨转移提供了一种新的潜在治疗选择。
Distant metastases occur when non‐small cell lung cancer (NSCLC) is at late stages. Bone metastasis is one of the most frequent metastases of NSCLC and leads to poor prognosis. It has been reported that high expression of BMP2 in NSCLC correlates with poor survival, but whether BMP2 contributes to NSCLC bone metastasis remains largely unknown. The activation of BMP signalling is found in metastatic bone tumours of mice Lewis lung carcinoma and predicts poor survival in human NSCLC. BMP2 signalling activation can enhance bone metastasis of Lewis lung carcinoma. Moreover, BMP2 secreted by stroma fibroblasts can promote the migration and invasion of NSCLC cells. Besides, in combination with pre‐osteoblast and LLCs, BMP2 could enhance the differentiation of macrophages into osteoclasts to play roles in the osteolytic mechanism of NSCLC bone metastasis. Interestingly, NSCLC cells can also enrich BMP2 to pre‐osteoblasts to function in the osteoblastic mechanism. Our results firstly demonstrate the detailed mechanisms about what roles BMP2 signalling play in enhancing NSCLC bone metastases. These findings provide a new potential therapy choice for preventing bone metastases of NSCLC via the inhibition of BMP2 signalling.
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