摘要
最初被描述为参与肝再生和神经元分化的因子,前蛋白转化酶枯草杆菌蛋白酶/kexin 9 型 (PCSK9) 已成为低密度脂蛋白胆固醇的关键调节因子之一。除此之外,许多研究表明 PCSK9 可能在癌症生物学中发挥作用。对于肠胃癌(胃癌和肝癌)和肺癌尤其如此,其中较高的 PCSK9 水平与肿瘤发展和转移的能力增加以及总体存活率降低有关。因此,最近显示阻断 PCSK9 的单克隆抗体与不同类型癌症的免疫疗法协同作用,通过增加细胞毒性 T 细胞的肿瘤内浸润来实现肿瘤生长抑制。抗 PCSK9 疫苗已在动物模型中进行了测试,仅在结肠癌中取得了令人鼓舞的结果。由于这些证据大部分是基于临床前研究,这导致了一些争议和不一致,因此表明需要进一步的研究来澄清这个话题。最后,通过沉默 RNA (siRNA) 调节细胞内 PCSK9 水平可能有助于了解 PCSK9 的生理和病理机制。
关键词: PCSK9、癌症、胆固醇、免疫疗法、疫苗、疗法
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