■肝细胞癌(HCC)是一种侵袭性恶性肿瘤,有效的治疗选择有限。异硫氰酸苯乙酯(PEITC)是主要存在于十字花科蔬菜中的生物活性物质。PEITC在各种癌症中表现出抗癌特性,包括肺,胆管,和前列腺癌。已经证明PEITC可以抑制增殖,入侵,和SK-Hep1细胞的转移,同时有效诱导HepG2细胞凋亡和细胞周期阻滞。然而,关于其对Huh7.5.1细胞的抗癌作用及其潜在机制的知识仍然难以捉摸。在本研究中,我们旨在评估PEITC对人肝癌Huh7.5.1细胞的抗癌作用。
进行MTT测定和集落形成测定以研究PEITC对Huh7.5.1细胞的抗增殖作用。采用流式细胞术(FCM)膜联蛋白V-FITC/PI双染色法检测PEITC的促凋亡作用,线粒体跨膜电位(MMP)测量,和Caspase-3活性检测。进行DAPI染色和末端脱氧核苷酸转移酶介导的dUTP缺口末端标记(TUNEL)测定,以评估PEITC诱导的Huh7.5.1细胞中的DNA损伤。通过FCM确定细胞周期进程。进行Transwell侵袭试验和伤口愈合迁移试验以研究PEITC对Huh7.5.1细胞迁移和侵袭的影响。此外,使用转录组测序和基因集富集分析(GSEA)来探索PEITC对HCC抑制作用的潜在分子机制。进行定量实时PCR(qRT-PCR)分析以验证转录组数据。
■MTT分析显示,用PEITC处理Huh7.5.1细胞导致活力的剂量依赖性下降,集落形成实验进一步证实了其抗增殖作用。此外,我们发现PEITC可以诱导线粒体相关的凋亡反应,包括线粒体跨膜电位的降低,Caspase-3活性的激活,和细胞内活性氧的产生。还观察到PEITC在Huh7.5.1细胞中引起DNA损伤和S期细胞周期停滞。此外,评估PEITC对Huh7.5.1细胞迁移和侵袭能力的抑制作用。转录组测序分析进一步表明,PEITC可以激活典型的MAPK,PI3K-Akt,和p53信号通路,揭示了PEITC抑制Huh7.5.1细胞致癌特性的潜在机制。
PEITC通过激活MAPK/PI3K-Akt/p53信号通路对人肝癌Huh7.5.1细胞具有抗癌活性。我们的结果表明,PEITC可能用于抗HCC治疗。
UNASSIGNED: Hepatocellular carcinoma (HCC) is an aggressive malignancy with limited effective treatment options. Phenethyl isothiocyanate (PEITC) is a bioactive substance present primarily in the cruciferous vegetables. PEITC has exhibited anti-cancer properties in various cancers, including lung, bile duct, and prostate cancers. It has been demonstrated that PEITC can inhibit the proliferation, invasion, and metastasis of SK-Hep1 cells, while effectively inducing apoptosis and cell cycle arrest in HepG2 cells. However, knowledge of its anti-carcinogenic effects on Huh7.5.1 cells and its underlying mechanism remains elusive. In the present study, we aim to evaluate the anti-carcinogenic effects of PEITC on human HCC Huh7.5.1 cells.
UNASSIGNED: MTT assay and colony formation assay was performed to investigate the anti-proliferative effects of PEITC against Huh7.5.1 cells. The pro-apoptosis effects of PEITC were determined by Annexin V-FITC/PI double staining assay by flow cytometry (FCM), mitochondrial transmembrane potential (MMP) measurement, and Caspase-3 activity detection. A DAPI staining and terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) assay was conducted to estimate the DNA damage in Huh7.5.1 cells induced by PEITC. Cell cycle progression was determined by FCM. Transwell invasion assay and wound healing migration assay were performed to investigate the impact of PEITC on the migration and invasion of Huh7.5.1 cells. In addition, transcriptome sequencing and gene set enrichment analysis (GSEA) were used to explore the potential molecular mechanisms of the inhibitory effects of PEITC on HCC. Quantitative real-time PCR (qRT-PCR) analysis was performed to verify the transcriptome data.
UNASSIGNED: MTT assay showed that treatment of Huh7.5.1 cells with PEITC resulted in a dose-dependent decrease in viability, and colony formation assay further confirmed its anti-proliferative effect. Furthermore, we found that PEITC could induce mitochondrial-related apoptotic responses, including a decrease of mitochondrial transmembrane potential, activation of Caspase-3 activity, and generation of intracellular reactive oxygen species. It was also observed that PEITC caused DNA damage and cell cycle arrest in the S-phase in Huh7.5.1 cells. In addition, the inhibitory effect of PEITC on the migration and invasion ability of Huh7.5.1 cells was assessed. Transcriptome sequencing analysis further suggested that PEITC could activate the typical MAPK, PI3K-Akt, and p53 signaling pathways, revealing the potential mechanism of PEITC in inhibiting the carcinogenic properties of Huh7.5.1 cells.
UNASSIGNED: PEITC exhibits anti-carcinogenic activities against human HCC Huh7.5.1 cells by activating MAPK/PI3K-Akt/p53 signaling pathways. Our results suggest that PEITC may be useful for the anti-HCC treatment.