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非酒精性脂肪肝病引起之肝細胞癌:現有及新興治療的安全性及效力

摘要


有鑑於第2型糖尿病及肥胖在全球的盛行,非酒精性脂肪肝病(non-alcoholic fatty liver disease, NAFLD)及非酒精性脂性肝炎(nonalcoholic steatohepatitis, NASH)逐漸成為肝細胞癌(hepatocellular carcinoma, HCC)的重要潛在病因。由脂毒性(lipotoxicity)引發之慢性發炎反應所發生的肝細胞癌有以下數個特徵:與病毒所引起的肝細胞癌不同,高達50%的非酒精性脂肪肝病引起之肝細胞癌(NAFLD-HCC)發生在沒有肝硬化的患者中,且每年的發病率相對較低,使當前的偵監策略複雜化。平均而言,NAFLD-HCC患者年齡較大,並且更常在晚期被診斷。儘管不論肝細胞癌病因如何,局部治療(locoregional treatment)可能都同樣有效,但系統性治療(systemic treatment)的情況則尚未明瞭。酪氨酸激酶抑製劑(tyrosine kinase inhibitors)可能同樣有效,但有初步跡象表明免疫檢查點抑制劑(immune checkpoint inhibitor)在NAFLD-HCC中的效果可能不如病毒性肝細胞癌。目前的肝細胞癌的國際治療指引因為沒有足夠的數據得出具體結論或建議,並未針對肝細胞癌的病因進行特別的修改。然而,由於NAFLD的盛行率越來越高,未來的臨床試驗應評估肝細胞癌的病因——尤其是NAFLD及NASH——是否會影響治療的安全性和有效性。

參考文獻


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