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表面基氨酸1,一个瘤选择性标在人类三阴性乳腺癌中的瘤选择性标

Shih-Jing Yao¹, Farideh Amirrad², Elmira Ziaei¹

¹Department of Biomedical and Pharmaceutical Sciences, School of Pharmacy, Harry and Diane Rinker Health Science Campus, Chapman University, Irvine, CA, 92618-1908, USA.

Scientific reports

|July 2, 2025

概括

克拉1 (K1) 在三阴性乳腺癌 (TNBC) 细胞上高度表达,与正常细胞不同. 这一发现为开发用于TNBC治疗的选择性药物输送策略提供了一个新的目标.

科学领域:

在瘤学瘤学.
细胞生物学细胞生物学
生物化学生物化学

背景情况:

针对癌细胞的向药物输送依赖于识别特定的细胞表面受体.
三重阴性乳腺癌 (TNBC) 是一个挑战,因为缺乏明确的受体用于向治疗.
选择性向需要在癌细胞中过度表达的受体,而不是在正常组织中.

研究的目的:

确定一种新的细胞表面受体标,用于在三阴性乳腺癌 (TNBC) 中选择性药物输送.
调查TNBC中质素1 (K1) 的表达水平和局部化.
评估K1作为酸媒介药物输送的目标的潜力.

主要方法:

人类TNBC和正常乳腺组织的免疫组织化学 (IHC) 分析.
质谱学,质指纹检测,以及对TNBC和正常细胞溶解物的西方斑点分析.
免疫光共聚焦显微镜检测细胞表面K1表达.
通过细胞表面K1.1.介导的-18-4吸收的评估.

主要成果:

与正常的乳腺组织相比,人类TNBC组织表现出显著更高水平的角质蛋白1 (K1).
3级TNBC瘤的K1表达率是2级瘤的3倍.
细胞表面K1在TNBC细胞上均存在,但在正常乳腺上皮细胞上缺席或最小.
TNBC选择性18-4利用细胞表面的K1进行内细胞分裂,证明了K1介导的向吸收.

结论:

克拉1 (K1) 在人类三阴性乳腺癌 (TNBC) 中显著过度表达.
细胞表面K1是TNBC中定向药物输送的有希望和选择性的目标.
18-4表明TNBC细胞中有效的K1中介吸收,验证了K1作为治疗点.

关键词:

细胞表面的角质蛋白 1 1 蛋白1表达的表达方式美国TNBC电视台有针对性的药物输送.瘤选择性类.

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