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RT Eric Topol: 癌症与阿尔茨海默病的悖论——存在反向关联,机制尚不明确

埃里克·托波尔(Eric Topol)分享了一项关于癌症与阿尔茨海默病之间反向关联的发现:癌症患者患阿尔茨海默病的风险显著降低,而阿尔茨海默病患者患癌症的风险也减半。该现象的机制目前尚未被解释清楚。

背景速读

- Eric Topol是一位知名的美国心脏病学家和基因组学研究者,常通过社交媒体分享前沿医学研究。 - 这条帖文指出的"癌症-阿尔茨海默悖论"是流行病学中长期观察到的现象:患有癌症的人患阿尔茨海默病的风险显著降低,反之亦然。这种负相关关系已被多项研究证实,但背后的生物学机制至今不明确。 - 该现象的一个主流推测涉及细胞凋亡(程序性细胞死亡)的调控差异——癌细胞的特征是凋亡被抑制(细胞"不死"),而神经退行性疾病的特征则是凋亡过度(细胞"死太多"),两种状态可能在分子层面互为"对立面"。 - 帖文链接指向一篇发表在《Nature》子刊上的论文,可能试图从分子机制角度对这一现象提出新解释(原文需进一步查看)。对该机制的理解有望为两种疾病的治疗提供共同靶点。

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