Abstract
At present, in vitro cell experiments have confirmed that RaddeaninA can effectively inhibit the proliferation of some tumor cells, but the effect of RaddeaninA on lung cancer cells has not been observed. Therefore, this study explored its effect on lung cancer cells and its mechanism of action. Human lung cancer cell lines were treated with serum-free medium and varied concentrations of Raddeanin A. Cell proliferation and apoptosis were determined using MTT, and flow cytometric assays, respectively. The intracellular level of ROS was determined using DCFH-DA assay. Protein and mRNA expressions of bax, bcl-2 and cyt c were measured using Western blotting and qRT-PCR. RaddeaninA treatment can promote PC-9 cell apoptosis in a time and dose-dependent manner (p<0.05). Treatment of PC-9 cells with Raddeanin significantly and dose-dependently increased the activities of caspase-9 and caspase-3 (p<0.05), and led to significant and dose-dependent increases in ROS levels (p<0.05). Treatment of PC-9 cells with Raddeanin A led to significant and dose-dependent decreases in mitochondrial membrane potential (p<0.05). It significantly and dose-dependently upregulated bax mRNA and protein expressions, but down-regulated bcl-2 mRNA and protein expressions significantly and dose-dependently (p<0.05). On the other hand, Raddeanin significantly and dose-dependently down-regulated cytoplasmic bax protein expression, while upregulating cyt c expression (p<0.05). Similarly, bax protein expression was significantly and dose-dependently upregulated in mitochondria, but the corresponding cyt c expression was significantly and dose-dependently down-regulated (p<0.05). Raddeanin A is a potential and effective lung cancer chemotherapy drug, which can induce lung cancer cell apoptosis and inhibit proliferation.
Highlights
Lung cancer, the most common malignant tumor in the lungs, is characterized by high mortality and morbidity [1]
The present study investigated the effect of Raddeanin A on lung cancer cell proliferation, and the mechanism involved
Rhizoma Anemones Raddeanae (RAR) is the dry rhizome of Anemone raddeana Regel, which belongs to the Ranunculaceae family
Summary
The most common malignant tumor in the lungs, is characterized by high mortality and morbidity [1]. In 2018, lung cancer accounted for about 25% of all cancer deaths in the United States. Treatments for lung cancer vary but may include surgery, chemotherapy, radiation therapy, targeted drug therapy and immunotherapy. The combination of surgery and postoperative chemotherapy offers the best treatment. Longterm survival of patients with advanced lung cancer cannot be effectively treated with available strategies, since chemoresistance remains a militating factor [2]. This has necessitated the search for novel strategies/ approaches that can effectively treat the disease
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
