Targeting BMP-1 enhances anti-tumoral effects of doxorubicin in metastatic mammary cancer: common and distinct features of TGF-β inhibition.

IF 3 3区医学 Q2 ONCOLOGY

Breast Cancer Research and Treatment Pub Date : 2025-01-10 DOI:10.1007/s10549-024-07592-4

Nuray Erin, Esra Tavşan, Seren Haksever, Azmi Yerlikaya, Chiara Riganti

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引用次数: 0

Abstract

Purpose: Mammary carcinoma is comprised heterogeneous groups of cells with different metastatic potential. 4T1 mammary carcinoma cells metastasized to heart (4THM), liver (4TLM) and brain (4TBM) and demonstrate cancer-stem cell phenotype. Using these cancer cells we found thatTGF-β is the top upstream regulator of metastatic process. In addition, secretion of bone morphogenetic protein 1 (BMP-1), which is crucial for the proteolytic release of TGF-β, was markedly high in metastatic mammary cancer cells compared to non-metastatic cells. Although TGF-β inhibitors are in clinical trials, systemic inhibition of TGF-β may produce heavy side effects. We here hypothesize that inhibition of BMP-1 proteolytic activity inhibits TGF-β activity and induces anti-tumoral effects.

Method and results: Effects of specific BMP-1 inhibitor on liver and brain metastatic murine mammary cancer cells (4TLM and 4TBM), as well as on human mammary cancer MDA-MB-231 and MCF-7 cells, were examined and compared with the results of TGF-β inhibition. Inhibition of BMP-1 activity markedly suppressed proliferation of cancer cells and enhanced anti-tumoral effects of doxorubicin. Inhibition of BMP-1 activity but not of TGF-β activity decreased colony and spheroid formation. Differential effects of BMP-1 and TGF-β inhibitors on TGF-β secretion was also observed.

Conclusions: These results demonstrated for the first time that the inhibition of BMP-1 activity has therapeutic potential for treatment of metastatic mammary cancer and enhances the anti-tumoral effects of doxorubicin.

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靶向BMP-1增强阿霉素在转移性乳腺癌中的抗肿瘤作用：TGF-β抑制的共同和独特特征

目的：乳腺癌是由具有不同转移潜能的异质性细胞群组成的。4T1乳腺癌细胞转移到心脏（4THM）、肝脏（4TLM）和大脑（4TBM），并表现出癌症干细胞表型。利用这些癌细胞，我们发现attgf -β是转移过程的顶级上游调节剂。此外，与非转移细胞相比，转移性乳腺癌细胞中骨形态发生蛋白1 （bone morphogenetic protein 1, BMP-1）的分泌明显高，BMP-1是TGF-β蛋白水解释放的关键。虽然TGF-β抑制剂还在临床试验中，但全身抑制TGF-β可能会产生严重的副作用。我们在此假设抑制BMP-1蛋白水解活性可抑制TGF-β活性并诱导抗肿瘤作用。方法与结果：检测特异性BMP-1抑制剂对小鼠肝、脑转移性乳腺癌细胞（4TLM和4TBM）以及人乳腺癌MDA-MB-231和MCF-7细胞的影响，并与TGF-β抑制结果进行比较。抑制BMP-1活性可显著抑制癌细胞增殖，增强阿霉素的抗肿瘤作用。抑制BMP-1活性而不抑制TGF-β活性可减少菌落和球状体的形成。BMP-1和TGF-β抑制剂对TGF-β分泌的影响也存在差异。结论：这些结果首次证明抑制BMP-1活性具有治疗转移性乳腺癌的潜力，并增强了阿霉素的抗肿瘤作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Breast Cancer Research and Treatment 医学-肿瘤学

CiteScore

6.80

自引率

2.60%

发文量

342

审稿时长

1 months

期刊介绍： Breast Cancer Research and Treatment provides the surgeon, radiotherapist, medical oncologist, endocrinologist, epidemiologist, immunologist or cell biologist investigating problems in breast cancer a single forum for communication. The journal creates a "market place" for breast cancer topics which cuts across all the usual lines of disciplines, providing a site for presenting pertinent investigations, and for discussing critical questions relevant to the entire field. It seeks to develop a new focus and new perspectives for all those concerned with breast cancer.