根据FDA提供的资料，拉帕替尼通过进入表达HER2蛋白的细胞，阻滞促进肿瘤生长的信号。

According to the FDA, Tykerb inhibits tumor growth by going inside cells containing the HER2 protein and blocking signals that promote tumor growth.

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临床关联性：采用与临床相关的手术行脊柱半骺阻滞的实验方法表明在生长板结构建立了一个梯度。

Clinical Relevance: A method of spinal hemiepiphysiodesis with use of a clinically relevant procedure has been shown to create a gradient in growth plate structure.

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它通过阻滞被称为肿瘤繁殖和血管生成的两个过程（引起肿瘤的生长和扩散）来发挥作用。

It works by blocking 2 basic processes that cause tumors to grow and spread. These processes are called proliferation and angiogenesis.

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