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开发新的抗CDH1/E-cadherin单克隆抗体,用于多种应用

Rena Ubukata¹, Hiroyuki Suzuki¹, Mika K Kaneko¹

¹Department of Antibody Drug Development, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.

Biochemistry and biophysics reports

|December 29, 2025

概括

研究人员开发了两种新的抗cadherin 1 (CDH1) 单克隆抗体 (mAbs) 用于流细胞计. 这些抗体,Ca1Mab-3和Ca1Mab-5,在乳腺癌细胞中检测CDH1并对研究和临床应用有用.

科学领域:

免疫学免疫学免疫学
细胞生物学细胞生物学
在瘤学瘤学.

背景情况:

阴素1 (CDH1/E-阴素) 对于上皮细胞粘附和组织平衡至关重要.
CDH1的损失促进了癌细胞的迁移和侵入.
现有的抗CDH1抗体对流细胞计缺乏敏感性.

研究的目的:

开发适合流细胞计的高度敏感的抗CDH1单克隆抗体 (mAbs).
在各种应用中描述新型抗CDH1mAbs的性能.

主要方法:

使用流细胞计进行高通量查,以开发抗CDH1mAbs.
抗体结合CDH1-过度表达细胞和癌细胞系内源性CDH1的特征.
确定抗体亲和力 (解离常数) 和验证在西部涂抹和免疫组织化学 (IHC).

主要成果:

两种抗CDH1 mAb克隆,Ca1Mab-3和Ca1Mab-5已经成功开发出来.
两种mAbs检测到CDH1在流动细胞计,西部涂抹,和IHC.
Ca1Mab-3和Ca1Mab-5在光型乳腺癌细胞 (MCF-7) 中特别识别了内源性CDH1,但不是三阴性细胞 (MDA-MB-231).
确定了高亲和度常数:Ca1Mab-3的5.9 × 10−10 M和Ca1Mab-5的1.8 × 10−9 M.

结论:

Ca1Mab-3和Ca1Mab-5是各种生物环境中检测CDH1的多功能工具.
这些抗体适用于基础研究,并有可能用于瘤诊断和治疗的临床应用.
Ca1Mab-5在甲固定胺嵌入的瘤组织中对IHC特别有效.

关键词:

CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 CDH1 基于细胞的免疫和查.在E-Cadherin中使用.流动细胞计量流动细胞计量免疫组织化学免疫组织化学一个单克隆抗体的抗体.

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