Yuan Yi, Li Yinghua, Deng Qinglin, Yang Jinying, Zhang Jing
Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510120, China.
Nanfang Hospital, Southern Medical University, Guangzhou 510120, China.
ACS Omega. 2024 Apr 30;9(19):20919-20926. doi: 10.1021/acsomega.3c10107. eCollection 2024 May 14.
Cervical cancer is a significant global health concern, and novel therapeutic strategies are continually being sought to combat this disease. In recent years, selenadiazole found latent therapeutic effects on tumors. Herein, investigating the mechanism of selenadiazole in Hela cells holds promise for advancing cervical cancer treatment. Hela cells, a widely utilized model for studying cervical cancer, were treated with selenadiazole, and cell viability was assessed by using the cell counting kit-8 (CCK-8) assay. Changes in mitochondrial membrane potential were evaluated using JC-1 staining, while apoptosis induction was examined using AnnexinV-PI double staining. Intracellular ROS levels were measured by using specific fluorescent probes and the ELIASA system. Additionally, Western blotting was performed to assess the activation of related proteins in response to selenadiazole. Data analysis was performed using GraphPad. Exposure to selenadiazole led to a substantial increase in intracellular redox oxygen species (ROS) levels in Hela cells. Importantly, the induction of ROS by selenadiazole was associated with a marked increase in mitochondrial apoptosis, as evidenced by elevated levels of AnnexinV-positive cells, the JC-1 monomer, caspase-9, and Bcl-2. Furthermore, activation of the JAK2/STAT3 pathway was observed following the selenadiazole treatment. Selenadiazole holds the potential to suppress tumor growth in cervical cancer cells by increasing reactive oxygen species (ROS) levels and inducing mitochondrial apoptosis via the JAK2/STAT3 pathway. This study offers valuable insights into potential cervical cancer therapies and underscores the need for further research into the specific mechanisms of selenadiazole.
宫颈癌是一个重大的全球健康问题,人们一直在不断寻求新的治疗策略来对抗这种疾病。近年来,硒二唑被发现对肿瘤具有潜在的治疗作用。在此,研究硒二唑在人宫颈癌细胞系(Hela细胞)中的作用机制有望推动宫颈癌治疗的进展。Hela细胞是一种广泛用于研究宫颈癌的模型,用硒二唑处理该细胞,并使用细胞计数试剂盒-8(CCK-8)检测法评估细胞活力。使用JC-1染色评估线粒体膜电位的变化,同时使用膜联蛋白V-碘化丙啶(AnnexinV-PI)双染色检测细胞凋亡诱导情况。使用特定荧光探针和酶联免疫吸附测定(ELIASA)系统测量细胞内活性氧(ROS)水平。此外,进行蛋白质免疫印迹法以评估响应硒二唑时相关蛋白的激活情况。使用GraphPad进行数据分析。暴露于硒二唑导致Hela细胞内氧化还原氧物种(ROS)水平大幅增加。重要地,硒二唑诱导的ROS与线粒体凋亡的显著增加相关,膜联蛋白V阳性细胞、JC-1单体、半胱天冬酶-9和Bcl-2水平升高证明了这一点。此外,在硒二唑处理后观察到Janus激酶2/信号转导和转录激活因子3(JAK2/STAT3)通路的激活。硒二唑有可能通过增加活性氧(ROS)水平并通过JAK2/STAT3通路诱导线粒体凋亡来抑制宫颈癌细胞的肿瘤生长。这项研究为潜在的宫颈癌治疗提供了有价值的见解,并强调了对硒二唑具体机制进行进一步研究的必要性。