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Qin W, Gan F, Jike Y, Jiang M, Li A. Consensus Clustering and Survival-Related Genes of Cuproptosis in Cutaneous Melanoma. Mediators Inflamm 2023; 2023:3615688. [PMID: 36891324 DOI: 10.1155/2023/3615688] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/30/2022] [Accepted: 01/27/2023] [Indexed: 03/03/2023] Open
Abstract
As a highly malignant tumor, the morbidity and mortality of cutaneous melanoma (CM) are increasing year by year. A novel type of cell death connected to mitochondrial metabolism is called cuproptosis. Cuproptosis regulates tumor biological behavior. Thus, genes controlling cuproptosis could be a promising candidate bioindicator for cancer therapy. Datasets of CM patients were obtained from the public database that includes clinical information and RNA-seq data. We divided CM patients into three different subgroups by unsupervised clustering method and explored the differences in functional pathways among the three subgroups by GSVA to prove the possible potential mechanism of copper death-related genes in the formation and development of CM. Secondly, we used differential analysis and Cox regression analysis to find the differential genes related to prognosis, constructed the CRG score, found the critical score for dividing high and low CRG score groups, and then analyzed the prognosis and immune infiltration of high and low CRG score groups. The results show a great correlation between OS and CRG scores. Compared with patients with high CRG scores, patients with low CRG scores have a significantly higher survival rate. In a word, copper sagging plays a certain role in the progress of CM.
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Liu Z, Zhu F, Zhang P, Qian B, Liu W, Xiao Y, Chen N, He Q, Xiao J. Construction of cuproptosis-related gene signature to predict the prognosis and immunotherapy efficacy of patients with bladder cancer through bioinformatics analysis and experimental validation. Front Genet 2022; 13:1074981. [PMID: 36506302 PMCID: PMC9728801 DOI: 10.3389/fgene.2022.1074981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 11/07/2022] [Indexed: 11/24/2022] Open
Abstract
Background: A new form of cell death, copper-dependent cell death (termed cuproptosis), was illustrated in a recent scientific study. However, the biological function or prognostic value of cuproptosis regulators in bladder cancer (BLCA) remains unknown. Materials and Methods: Sequencing data obtained from BLCA samples in TCGA and GEO databases were preprocessed for analysis. Biological function and immune cell infiltration levels evaluated by gene set variation analysis (GSVA) were employed to calculate enrichment scores. Iteration least absolute shrinkage and selection operator (LASSO) and COX regression model were employed to select feature genes and construct a novel cuproptosis-related (CR) score signature. The genomics of drug sensitivity in cancer (GDSC) and tumor immune dysfunction and exclusion (TIDE) analysis were used to predict the chemotherapy and immunotherapy efficacy for BLCA patients. The relative expression of the genes involved in the signature was also verified by real-time quantitative PCR (qRT-PCR) in cell lines and tissues. Results: Expression abundance and the prognostic value of cuproptosis regulators proved that cuproptosis might play a vital part in the carcinogenesis of BLCA. GSVA revealed that cuproptosis regulators might be associated with metabolism and metastasis-related pathways such as TGF-β, protein secretion, oxidative Phosphorylation, MYC targets, MTORC1, and adipogenesis pathways. CR scores could predict the prognosis and evaluate the chemotherapy and immunotherapy efficacies of BLCA. CR scores were positively correlated with EMT, MYC, MTORC1, HEDGEHOG, and E2F signaling pathways; meanwhile, they were negatively correlated with several immune cell infiltration levels such as CD8+ T cells, γδT cells, and activated dendritic cells. Several GEO datasets were used to validate the power of prognostic prediction, and a nomogram was also established for clinical use. The expressions of DDX10, RBM34, and RPL17 were significantly higher in BLCA cell lines and tissues in comparison with those in the corresponding normal controls. Conclusion: Cuproptosis might play an essential role in the progression of BLCA. CR scores could be helpful in the investigation of prognostic prediction and therapeutic efficacy and could make contributions to further studies in BLCA.
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Affiliation(s)
- Zijian Liu
- Department of Head and Neck Oncology, Cancer Center West China Hospital, Sichuan University, Chengdu, China,Department of Radiation Oncology, Cancer Center West China Hospital, Sichuan University, Wuhan, China
| | - Fubin Zhu
- Department of Head and Neck Oncology, Cancer Center West China Hospital, Sichuan University, Chengdu, China,Department of Radiation Oncology, Cancer Center West China Hospital, Sichuan University, Wuhan, China
| | - Pu Zhang
- Department of Urology Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bei Qian
- Department of Thyroid and Breast Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weihui Liu
- Department of Urology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Yajun Xiao
- Department of Urology Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,Department of Thyroid and Breast Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Nianyong Chen
- Department of Head and Neck Oncology, Cancer Center West China Hospital, Sichuan University, Chengdu, China,Department of Radiation Oncology, Cancer Center West China Hospital, Sichuan University, Wuhan, China
| | - Qingliu He
- Department of Urology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China,*Correspondence: Jianghong Xiao, ; Qingliu He,
| | - Jianghong Xiao
- Department of Radiation Oncology, Cancer Center West China Hospital, Sichuan University, Wuhan, China,*Correspondence: Jianghong Xiao, ; Qingliu He,
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Huang JY, Lin YC, Chen HM, Lin JT, Kao SH. Adenine Combined with Cisplatin Promotes Anticancer Activity against Hepatocellular Cancer Cells through AMPK-Mediated p53/p21 and p38 MAPK Cascades. Pharmaceuticals (Basel) 2022; 15:ph15070795. [PMID: 35890094 PMCID: PMC9322617 DOI: 10.3390/ph15070795] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 06/23/2022] [Accepted: 06/24/2022] [Indexed: 12/24/2022] Open
Abstract
Cisplatin has been widely used in cancer treatments. Recent evidence indicates that adenine has potential anticancer activities against various types of cancers. However, the effects of the combination of adenine and cisplatin on hepatocellular carcinoma (HCC) cells remain sketchy. Here, our objective was to elucidate the anticancer activity of adenine in combination with cisplatin in HCC cells and its mechanistic pathways. Cell viability and cell cycle progression were assessed by the SRB assay and flow cytometry, respectively. Apoptosis was demonstrated by PI/annexin V staining and flow cytometric analysis. Protein expression, signaling cascade, and mRNA expression were analyzed by Western blotting and quantitative RT-PCR, respectively. Our results showed that adenine jointly potentiated the inhibitory effects of cisplatin on the cell viability of SK-Hep1 and Huh7 cells. Further investigation showed that adenine combined with cisplatin induced higher S phase arrest and apoptosis in HCC cells. Mechanically, adenine induced AMPK activation, reduced mTOR phosphorylation, and increased p53 and p21 levels. The combination of adenine and cisplatin synergistically reduced Bcl-2 and increased PUMA, cleaved caspase-3, and PARP in HCC cells. Adenine also upregulated the mRNA expression of p53, p21, PUMA, and PARP, while knockdown of AMPK reduced the increased expression of these genes. Furthermore, adenine also induced the activation of p38 MAPK through AMPK signaling, and the inhibition of p38 MAPK reduced the apoptosis of HCC cells with exposure to adenine combined with cisplatin. Collectively, these findings reveal that the combination of adenine and cisplatin synergistically enhances apoptosis of HCC cells, which may be attributed to the AMPK-mediated p53/p21 and p38 MAPK cascades. It suggests that adenine may be a potential adjuvant for the treatment of HCC in combination with cisplatin.
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Affiliation(s)
- Jhen-Yu Huang
- Institute of Medicine, College of Medicine, Chung Shan Medical University, Taichung City 402306, Taiwan;
| | - You-Cian Lin
- Cardiovascular Division, Surgical Department, China Medical University Hospital, Taichung City 404332, Taiwan;
- School of Medicine, College of Medicine, China Medical University, Taichung City 404332, Taiwan
| | - Han-Min Chen
- Institute of Applied Science and Engineering, Catholic Fu Jen University, New Taipei 242048, Taiwan;
| | - Jiun-Tsai Lin
- Energenesis Biomedical Co., Ltd., Taipei 114694, Taiwan;
| | - Shao-Hsuan Kao
- Institute of Medicine, College of Medicine, Chung Shan Medical University, Taichung City 402306, Taiwan;
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung City 402306, Taiwan
- Correspondence: ; Tel.: +886-4-24730022 (ext. 11681)
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