{"title":"肿瘤微环境内皮-间质转化促进前列腺癌神经内分泌分化。","authors":"Takumi Kageyama, Manabu Kato, Shiori Miyachi, Xin Bao, Sho Sekito, Yusuke Sugino, Shinichiro Higashi, Takeshi Sasaki, Kouhei Nishikawa, Yasuhiro Murakawa, Masatoshi Watanabe, Takahiro Inoue","doi":"10.1111/cas.70144","DOIUrl":null,"url":null,"abstract":"<p>Neuroendocrine prostate cancer (NEPC) is a highly aggressive and treatment-resistant subtype of castration-resistant prostate cancer (CRPC) that often emerges during progression under androgen-receptor (AR) pathway inhibition. While lineage plasticity in cancer cells has been recognized as a key mechanism of resistance, the role of the tumor microenvironment in driving this transition remains unclear. Among its cellular components, vascular endothelial cells can undergo endothelial-mesenchymal transition (EndoMT), a phenotypic shift associated with tumor progression and fibrosis. Here, we investigated whether EndoMT contributes to NEPC development. Human umbilical vein endothelial cells (HUVEC) were induced to undergo EndoMT using IL-1β and TGF-β2, and are hereafter referred to as EndoMTed HUVEC. EndoMTed HUVEC promoted neuroendocrine features and functional changes in LNCaP cells. Transcriptome analysis revealed marked upregulation of granulocyte-macrophage colony-stimulating factor (GM-CSF) in EndoMTed HUVEC. Neutralization of GM-CSF signaling using mavrilimumab, a monoclonal antibody targeting the GM-CSF receptor alpha (CSF2RA), and siRNA-mediated CSF2RA knockdown both suppressed the neuroendocrine phenotype and STAT3 signaling of LNCaP cells. Conversely, GM-CSF stimulation alone reproduced these changes. Enzalutamide-treated LNCaP cells secreted IL-1β and TGF-β2, which in turn triggered EndoMT, suggesting a reciprocal loop. These findings indicate that anti-androgen therapy may inadvertently promote NEPC through a paracrine loop involving tumor-derived cytokines and endothelial GM-CSF secretion, highlighting EndoMT as a microenvironmental driver of treatment resistance.</p>","PeriodicalId":9580,"journal":{"name":"Cancer Science","volume":"116 10","pages":"2712-2722"},"PeriodicalIF":4.3000,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/cas.70144","citationCount":"0","resultStr":"{\"title\":\"Endothelial-Mesenchymal Transition in Tumor Microenvironment Promotes Neuroendocrine Differentiation of Prostate Cancer\",\"authors\":\"Takumi Kageyama, Manabu Kato, Shiori Miyachi, Xin Bao, Sho Sekito, Yusuke Sugino, Shinichiro Higashi, Takeshi Sasaki, Kouhei Nishikawa, Yasuhiro Murakawa, Masatoshi Watanabe, Takahiro Inoue\",\"doi\":\"10.1111/cas.70144\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Neuroendocrine prostate cancer (NEPC) is a highly aggressive and treatment-resistant subtype of castration-resistant prostate cancer (CRPC) that often emerges during progression under androgen-receptor (AR) pathway inhibition. While lineage plasticity in cancer cells has been recognized as a key mechanism of resistance, the role of the tumor microenvironment in driving this transition remains unclear. Among its cellular components, vascular endothelial cells can undergo endothelial-mesenchymal transition (EndoMT), a phenotypic shift associated with tumor progression and fibrosis. Here, we investigated whether EndoMT contributes to NEPC development. Human umbilical vein endothelial cells (HUVEC) were induced to undergo EndoMT using IL-1β and TGF-β2, and are hereafter referred to as EndoMTed HUVEC. EndoMTed HUVEC promoted neuroendocrine features and functional changes in LNCaP cells. Transcriptome analysis revealed marked upregulation of granulocyte-macrophage colony-stimulating factor (GM-CSF) in EndoMTed HUVEC. Neutralization of GM-CSF signaling using mavrilimumab, a monoclonal antibody targeting the GM-CSF receptor alpha (CSF2RA), and siRNA-mediated CSF2RA knockdown both suppressed the neuroendocrine phenotype and STAT3 signaling of LNCaP cells. Conversely, GM-CSF stimulation alone reproduced these changes. Enzalutamide-treated LNCaP cells secreted IL-1β and TGF-β2, which in turn triggered EndoMT, suggesting a reciprocal loop. These findings indicate that anti-androgen therapy may inadvertently promote NEPC through a paracrine loop involving tumor-derived cytokines and endothelial GM-CSF secretion, highlighting EndoMT as a microenvironmental driver of treatment resistance.</p>\",\"PeriodicalId\":9580,\"journal\":{\"name\":\"Cancer Science\",\"volume\":\"116 10\",\"pages\":\"2712-2722\"},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2025-07-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1111/cas.70144\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Cancer Science\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1111/cas.70144\",\"RegionNum\":2,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ONCOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cancer Science","FirstCategoryId":"3","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/cas.70144","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ONCOLOGY","Score":null,"Total":0}
Endothelial-Mesenchymal Transition in Tumor Microenvironment Promotes Neuroendocrine Differentiation of Prostate Cancer
Neuroendocrine prostate cancer (NEPC) is a highly aggressive and treatment-resistant subtype of castration-resistant prostate cancer (CRPC) that often emerges during progression under androgen-receptor (AR) pathway inhibition. While lineage plasticity in cancer cells has been recognized as a key mechanism of resistance, the role of the tumor microenvironment in driving this transition remains unclear. Among its cellular components, vascular endothelial cells can undergo endothelial-mesenchymal transition (EndoMT), a phenotypic shift associated with tumor progression and fibrosis. Here, we investigated whether EndoMT contributes to NEPC development. Human umbilical vein endothelial cells (HUVEC) were induced to undergo EndoMT using IL-1β and TGF-β2, and are hereafter referred to as EndoMTed HUVEC. EndoMTed HUVEC promoted neuroendocrine features and functional changes in LNCaP cells. Transcriptome analysis revealed marked upregulation of granulocyte-macrophage colony-stimulating factor (GM-CSF) in EndoMTed HUVEC. Neutralization of GM-CSF signaling using mavrilimumab, a monoclonal antibody targeting the GM-CSF receptor alpha (CSF2RA), and siRNA-mediated CSF2RA knockdown both suppressed the neuroendocrine phenotype and STAT3 signaling of LNCaP cells. Conversely, GM-CSF stimulation alone reproduced these changes. Enzalutamide-treated LNCaP cells secreted IL-1β and TGF-β2, which in turn triggered EndoMT, suggesting a reciprocal loop. These findings indicate that anti-androgen therapy may inadvertently promote NEPC through a paracrine loop involving tumor-derived cytokines and endothelial GM-CSF secretion, highlighting EndoMT as a microenvironmental driver of treatment resistance.
期刊介绍:
Cancer Science (formerly Japanese Journal of Cancer Research) is a monthly publication of the Japanese Cancer Association. First published in 1907, the Journal continues to publish original articles, editorials, and letters to the editor, describing original research in the fields of basic, translational and clinical cancer research. The Journal also accepts reports and case reports.
Cancer Science aims to present highly significant and timely findings that have a significant clinical impact on oncologists or that may alter the disease concept of a tumor. The Journal will not publish case reports that describe a rare tumor or condition without new findings to be added to previous reports; combination of different tumors without new suggestive findings for oncological research; remarkable effect of already known treatments without suggestive data to explain the exceptional result. Review articles may also be published.