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新型 Annexin V 衍生物的设计、合成及抗黑色素瘤活性研究。β-整联蛋白亲和力。

Design, Synthesis and Anti-Melanoma Activity of Novel Annexin V Derivative with β-Integrin Affinity.

机构信息

Beijing Key Lab of Biotechnology and Genetic Engineering, College of Life Sciences, Beijing Normal University, Beijing 100875, China.

出版信息

Int J Mol Sci. 2023 Jul 5;24(13):11107. doi: 10.3390/ijms241311107.

Abstract

Tumor tissues often exhibit unique integrin receptor presentation during development, such as high exposures of αβ and αβ integrins. These features are not present in normal tissues. The induction of selective thrombosis and infarction in the tumor-feeding vessels, as well as specific antagonism of αβ integrin on the surface of tumor endothelial cells, is a potential novel antitumor strategy. The Echistatin-Annexin V (EAV) fusion protein is a novel Annexin V (ANV) derivative that possesses a high degree of αβ and αβ integrin receptor recognition and binding characteristics while retaining the specific binding ability of the natural ANV molecule for phosphatidylserine (PS). We systematically investigated the biological effects of this novel molecule with superimposed functions on mouse melanoma. We found that EAV inhibited the viability and migration of B16F10 murine melanoma cells in a dose-dependent manner, exhibited good tumor suppressive effects in a xenograft mouse melanoma model, strongly induced tumor tissue necrosis in mice, and targeted the inhibition of angiogenesis in mouse melanoma tumor tissue. EAV exhibited stronger biological effects than natural ANV molecules in inhibiting melanoma in mice. The unique biological effects of EAV are based on its high β-type integrin receptor-specific recognition and binding ability, as well as its highly selective binding to PS molecules. Based on these findings, we propose that EAV-mediated tumor suppression is a novel and promising antitumor strategy that targets both PS- and integrin β-positive tumor neovascularization and the tumor cells themselves, thus providing a possible mechanism for the treatment of melanoma.

摘要

肿瘤组织在发育过程中经常表现出独特的整合素受体表达,例如高暴露的αβ和αβ整合素。这些特征在正常组织中不存在。诱导肿瘤供养血管选择性血栓形成和梗死,以及肿瘤内皮细胞表面αβ整合素的特异性拮抗作用,是一种潜在的新型抗肿瘤策略。 Echistatin-Annexin V(EAV)融合蛋白是一种新型 Annexin V(ANV)衍生物,具有高度的αβ和αβ整合素受体识别和结合特性,同时保留天然 ANV 分子对磷脂酰丝氨酸(PS)的特异性结合能力。我们系统地研究了这种具有叠加功能的新型分子对小鼠黑色素瘤的生物学效应。我们发现 EAV 以剂量依赖性方式抑制 B16F10 小鼠黑色素瘤细胞的活力和迁移,在异种移植小鼠黑色素瘤模型中表现出良好的肿瘤抑制作用,强烈诱导小鼠肿瘤组织坏死,并靶向抑制小鼠黑色素瘤肿瘤组织中的血管生成。EAV 在抑制小鼠黑色素瘤方面表现出比天然 ANV 分子更强的生物学效应。EAV 的独特生物学效应基于其对β型整合素受体的高特异性识别和结合能力,以及其对 PS 分子的高度选择性结合。基于这些发现,我们提出 EAV 介导的肿瘤抑制是一种针对 PS 和整合素β阳性肿瘤新生血管和肿瘤细胞本身的新型有前途的抗肿瘤策略,从而为治疗黑色素瘤提供了一种可能的机制。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cd60/10342375/0f9665d4a4fe/ijms-24-11107-g001.jpg

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