title: Zerumbone induces apoptosis in human renal cell carcinoma via Gli-1/Bcl-2 pathway.
abstract: Renal cell carcinoma (RCC) is a malignant disease insensitive to conventional treatments such as radiochemotherapy and immunotherapy. Search for new approaches to induce cancer cell apoptosis will improve the management of RCC. Here, we reported that zerumbone, a monosesquiterpine, shows anticancer effects on human RCC cells via induction of apoptosis in vitro. Human renal clear cell carcinoma 786-0 and 769-P cell lines were used as the model system. Exposure of RCC cells to zerumbone resulted in cell viability inhibition, accompanied by DNA fragmentation and increased apoptotic index. Mechanically, treatment of RCC cells with zerumbone activated caspase-3 and caspase-9, and finally led to cleavage of PARR In addition, downregulation of Gli-1 and Bcl-2, which were closely related to the chemoresistance of RCC, was observed in zerumbone-treated RCC cells. Taken together, our study provided the first evidence that zerumbone imparted strong inhibitory and apoptotic effects on human RCC cells. The zerumbone-induced apoptosis might be related to the activation of the caspase cascade and deregulation of the Gli-1/Bcl-2 pathway. Our results suggest that zerumbone merit further investigation as an apoptosis inducer as well as a novel RCC chemotherapeutic agent in the clinical setting.
authors.affiliation: Department of Urology, Shaanxi Provincal People's Hospital, Xi'an, P. R. China. adoremidfall@yahoo.cn
authors.forename: Yi
authors.initials: Y
authors.lastname: Sun
authors.forename: Qiu
authors.initials: Q
authors.lastname: Sheng
authors.forename: Yongyi
authors.initials: Y
authors.lastname: Cheng
authors.forename: Yonggang
authors.initials: Y
authors.lastname: Xu
authors.forename: Yili
authors.initials: Y
authors.lastname: Han
authors.forename: Jianzhong
authors.initials: J
authors.lastname: Wang
authors.forename: Liang
authors.initials: L
authors.lastname: Shi
authors.forename: Huacai
authors.initials: H
authors.lastname: Zhao
authors.forename: Chun
authors.initials: C
authors.lastname: Du
mesh_terms: D017209:Apoptosis / Q000187:drug effects*; D015153:Blotting, Western; D002292:Carcinoma, Renal Cell / Q000188:drug therapy* / Q000235:genetics*; D020169:Caspases / Q000378:metabolism; D045744:Cell Line, Tumor; D002470:Cell Survival; D019938:Cyclin D1 / Q000235:genetics / Q000502:physiology*; D053938:DNA Fragmentation / Q000187:drug effects; D004789:Enzyme Activation / Q000187:drug effects; D005434:Flow Cytometry; D006801:Humans; D015513:Oncogene Proteins / Q000235:genetics / Q000502:physiology*; D012717:Sesquiterpenes / Q000494:pharmacology*; D015398:Signal Transduction / Q000187:drug effects; D015534:Trans-Activators / Q000235:genetics / Q000502:physiology*; D000071676:Zinc Finger Protein GLI1
chemical_list: D015513:Oncogene Proteins; D012717:Sesquiterpenes; D015534:Trans-Activators; D000071676:Zinc Finger Protein GLI1; D019938:Cyclin D1; C403304:zerumbone; D020169:Caspases