Biochemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt.
Biochemistry Department, Faculty of Pharmacy, Mansoura National University, Gamasa, 7731168, Egypt.
Cell Death Dis. 2024 Aug 16;15(8):595. doi: 10.1038/s41419-024-06955-5.
Hepatocellular carcinoma (HCC) has risen as the villain of cancer-related death globally, with a usual cruel forecasting. Sorafenib was officially approved by the FDA as first-line treatment for advanced HCC. Despite the brilliant promise revealed in research, actual clinical results are limited due to the widespread appearance of drug resistance. The tumor microenvironment (TME) has been correlated to pharmacological resistance, implying that existing cellular level strategies may be insufficient to improve therapy success. The role of autophagy in cancer is a two-edged sword. On one hand, autophagy permits malignant cells to overcome stress, such as hypoxic TME and therapy-induced starvation. Autophagy, on the other hand, plays an important role in damage suppression, which can reduce carcinogenesis. As a result, controlling autophagy is certainly a viable technique in cancer therapy. The goal of this study was to investigate at the impact of autophagy manipulation with sorafenib therapy by analyzing autophagy induction and inhibition to sorafenib monotherapy in rats with HCC. Western blot, ELISA, immunohistochemistry, flow cytometry, and quantitative-PCR were used to investigate autophagy, apoptosis, and the cell cycle. Routine biochemical and pathological testing was performed. Ultracellular features and autophagic entities were observed using a transmission electron microscope (TEM). Both regimens demonstrated significant reductions in chemotherapeutic resistance and hepatoprotective effects. According to the findings, both autophagic inhibitors and inducers are attractive candidates for combating sorafenib-induced resistance in HCC.
肝细胞癌 (HCC) 已成为全球癌症相关死亡的罪魁祸首,预后通常十分残酷。索拉非尼已被 FDA 正式批准为晚期 HCC 的一线治疗药物。尽管研究显示出了令人瞩目的前景,但由于广泛出现耐药性,实际的临床效果有限。肿瘤微环境 (TME) 与药物耐药性相关,这表明现有的细胞水平策略可能不足以提高治疗效果。自噬在癌症中的作用是一把双刃剑。一方面,自噬使恶性细胞能够克服应激,如缺氧的 TME 和治疗引起的饥饿。另一方面,自噬在抑制损伤方面发挥着重要作用,从而减少致癌作用。因此,控制自噬肯定是癌症治疗的一种可行技术。本研究的目的是通过分析 HCC 大鼠中索拉非尼单药治疗的自噬诱导和抑制作用,研究自噬对索拉非尼治疗的影响。采用 Western blot、ELISA、免疫组织化学、流式细胞术和定量 PCR 检测自噬、细胞凋亡和细胞周期。进行常规生化和病理检测。使用透射电子显微镜 (TEM) 观察细胞外特征和自噬实体。两种方案均显著降低了化疗耐药性和肝保护作用。根据这些发现,自噬抑制剂和诱导剂都是对抗 HCC 中索拉非尼诱导耐药性的有吸引力的候选药物。