TPP-45142是一种抗HER2T细胞激活剂,用于选择性HER2-低癌症免疫疗法
Evelyn De Tavernier1, Peter S Kim2, Eduardo M Bruch3
1Sanofi (Belgium) Ghent India.
Molecular cancer therapeutics
|January 8, 2026
概括
一种新型的T细胞参与剂,TPP-45142,通过重定向T细胞,有效地准HER2-低瘤. 这种有前途的疗法显示出强大的抗瘤活性和选择性,为目前治疗方法耐药的患者提供了希望.
科学领域:
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
- 分子生物学分子生物学
背景情况:
- 对于HER2阳性癌症的标准治疗方法已经存在,但HER2低的癌症和对trastuzumab耐药的癌症仍然是一个挑战.
- 特拉斯图祖马布和珀图祖马布向特定的HER2表位,为某些患者群体留下治疗缺口.
研究的目的:
- 开发和评估TPP-45142,一种基于NANOBODY®域的新型T细胞参与剂 (TCE),用于向HER2-低癌症.
- 评估TPP-45142在HER2-低乳腺,胃和胃食道结腺癌的临床前模型中的疗效和安全性.
主要方法:
- 开发TPP-45142,一种使用NANOBODY®域和T细胞受体 (TCR) αβ的TCE.
- 在体外评估T细胞依赖性细胞毒性对HER2-低癌症细胞系.
- 在HER2-低乳腺癌异种移植模型中TPP-45142疗效的体内评估.
- 评估TPP-45142对瘤细胞的选择性与正常心脏细胞的选择性以及细胞因子释放试验.
主要成果:
- 在实验室中,TPP-45142证明了强大的T细胞依赖性杀死HER2-低癌细胞.
- 在体内研究表明,TPP-45142抑制了HER2-低乳腺癌异体移植中的瘤生长.
- TPP-45142对低HER2瘤细胞的选择性高于正常心脏细胞,具有有利的治疗指数.
结论:
- TPP-45142是一种有前途的下一代TCE,针对HER2-低瘤.
- 该分子识别出独特的HER2表位,提供了一条新的治疗途径.
- TPP-45142具有更好的安全性,解决了HER2向治疗的未满足需求.
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