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Yangyanqiu W, Shuwen H. Bacterial DNA involvement in carcinogenesis. Front Cell Infect Microbiol 2022; 12:996778. [PMID: 36310856 PMCID: PMC9600336 DOI: 10.3389/fcimb.2022.996778] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 09/27/2022] [Indexed: 10/29/2023] Open
Abstract
The incidence of cancer is high worldwide, and biological factors such as viruses and bacteria play an important role in the occurrence of cancer. Helicobacter pylori, human papillomavirus, hepatitis B viruses and other organisms have been identified as carcinogens. Cancer is a disease driven by the accumulation of genome changes. Viruses can directly cause cancer by changing the genetic composition of the human body, such as cervical cancer caused by human papillomavirus DNA integration and liver cancer caused by hepatitis B virus DNA integration. Recently, bacterial DNA has been found around cancers such as pancreatic cancer, breast cancer and colorectal cancer, and the idea that bacterial genes can also be integrated into the human genome has become a hot topic. In the present paper, we reviewed the latest phenomenon and specific integration mechanism of bacterial DNA into the human genome. Based on these findings, we also suggest three sources of bacterial DNA in cancers: bacterial DNA around human tissues, free bacterial DNA in bacteremia or sepsis, and endogenous bacterial DNA in the human genome. Clarifying the theory that bacterial DNA integrates into the human genome can provide a new perspective for cancer prevention and treatment.
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Affiliation(s)
- Wang Yangyanqiu
- Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou, China
- Graduate School of Medical college of Zhejiang University, Hangzhou, China
- Key Laboratory of Multiomics Research and Clinical Transformation of Digestive Cancer, Huzhou, China
| | - Han Shuwen
- Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou, China
- Graduate School of Medical college of Zhejiang University, Hangzhou, China
- Key Laboratory of Multiomics Research and Clinical Transformation of Digestive Cancer, Huzhou, China
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Wu Z, Xia C, Zhang C, Tang D, Liu F, Ou Y, Gao J, Yi H, Yang D, Ma K. Adeno-associated virus-delivered alpha synuclein inhibits bladder cancer growth via the p53/p21 signaling pathway. Cancer Gene Ther 2022; 29:1193-1206. [PMID: 35064206 DOI: 10.1038/s41417-022-00425-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 10/18/2021] [Accepted: 12/15/2021] [Indexed: 11/09/2022]
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Chen C, Ding Y, Liu H, Sun M, Wang H, Wu D. Flubendazole Plays an Important Anti-Tumor Role in Different Types of Cancers. Int J Mol Sci 2022; 23:ijms23010519. [PMID: 35008943 PMCID: PMC8745596 DOI: 10.3390/ijms23010519] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/30/2021] [Accepted: 01/01/2022] [Indexed: 02/01/2023] Open
Abstract
Flubendazole, belonging to benzimidazole, is a broad-spectrum insect repellent and has been repurposed as a promising anticancer drug. In recent years, many studies have shown that flubendazole plays an anti-tumor role in different types of cancers, including breast cancer, melanoma, prostate cancer, colorectal cancer, and lung cancer. Although the anti-tumor mechanism of flubendazole has been studied, it has not been fully understood. In this review, we summarized the recent studies regarding the anti-tumor effects of flubendazole in different types of cancers and analyzed the related mechanisms, in order to provide the theoretical reference for further studies in the future.
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Affiliation(s)
- Chaoran Chen
- Institute of Nursing and Health, School of Nursing and Health, Henan University, Jinming Avenue, Kaifeng 475004, China; (C.C.); (Y.D.)
| | - Yueming Ding
- Institute of Nursing and Health, School of Nursing and Health, Henan University, Jinming Avenue, Kaifeng 475004, China; (C.C.); (Y.D.)
| | - Huiyang Liu
- Henan International Joint Laboratory of Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China;
| | - Mengyao Sun
- School of Clinical Medicine, Henan University, Kaifeng 475004, China;
| | - Honggang Wang
- Henan International Joint Laboratory of Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China;
- Correspondence: (H.W.); (D.W.)
| | - Dongdong Wu
- Henan International Joint Laboratory of Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China;
- School of Stomatology, Henan University, Kaifeng 475004, China
- Correspondence: (H.W.); (D.W.)
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Liu Y, Pang Z, Zhao X, Zeng Y, Shen H, Du J. Prognostic model of AU-rich genes predicting the prognosis of lung adenocarcinoma. PeerJ 2021; 9:e12275. [PMID: 34707942 PMCID: PMC8504460 DOI: 10.7717/peerj.12275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 09/19/2021] [Indexed: 12/15/2022] Open
Abstract
Background AU-rich elements (ARE) are vital cis-acting short sequences in the 3’UTR affecting mRNA stability and translation. The deregulation of ARE-mediated pathways can contribute to tumorigenesis and development. Consequently, ARE-genes are promising to predict prognosis of lung adenocarcinoma (LUAD) patients. Methods Differentially expressed ARE-genes between LUAD and adjacent tissues in TCGA were investigated by Wilcoxon test. LASSO and Cox regression analyses were performed to identify a prognostic genetic signature. The genetic signature was combined with clinicopathological features to establish a prognostic model. LUAD patients were divided into high- and low-risk groups by the model. Kaplan–Meier curve, Harrell’s concordance index (C-index), calibration curves and decision curve analyses (DCA) were used to assess the model. Function enrichment analysis, immunity and tumor mutation analyses were performed to further explore the underlying molecular mechanisms. GEO data were used for external validation. Results Twelve prognostic genes were identified. The gene riskScore, age and stage were independent prognostic factors. The high-risk group had worse overall survival and was less sensitive to chemotherapy and radiotherapy (P < 0.01). C-index and calibration curves showed good performance on survival prediction in both TCGA (1, 3, 5-year ROC: 0.788, 0.776, 0.766) and the GSE13213 validation cohort (1, 3, 5-year ROC: 0.781, 0.811, 0.734). DCA showed the model had notable clinical net benefit. Furthermore, the high-risk group were enriched in cell cycle, DNA damage response, multiple oncological pathways and associated with higher PD-L1 expression, M1 macrophage infiltration. There was no significant difference in tumor mutation burden (TMB) between high- and low-risk groups. Conclusion ARE-genes can reliably predict prognosis of LUAD and may become new therapeutic targets for LUAD.
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Affiliation(s)
- Yong Liu
- Institute of Oncology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China
| | - Zhaofei Pang
- Institute of Oncology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China.,Institute of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province, China.,Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province, China
| | - Xiaogang Zhao
- Department of Thoracic Surgery, The Second Hospital of Shandong University, Jinan, Shandong Province, China
| | - Yukai Zeng
- Institute of Oncology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China
| | - Hongchang Shen
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province, China
| | - Jiajun Du
- Institute of Oncology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China.,Institute of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province, China.,Department of Thoracic Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China
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Friedman Y, Hizi A, Avni D, Bakhanashvili M. Mitochondrial matrix-localized p53 participates in degradation of mitochondrial RNAs. Mitochondrion 2021; 58:200-212. [PMID: 33775872 DOI: 10.1016/j.mito.2021.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 03/11/2021] [Accepted: 03/22/2021] [Indexed: 11/18/2022]
Abstract
Mitochondrial RNA degradation plays an important role in maintenance of the mitochondria genetic integrity. Mitochondrial localization of p53 was observed in non-stressed and stressed cells. p53, as an RNA-binding protein, exerts 3'→5' exoribonuclease activity. The data suggest that in non-stressed cells, mitochondrial matrix-localized p53, with exoribonuclease activity, may play a housekeeping positive role. p53, through restriction the formation of new RNA/DNA hybrid and processing R-loop, might serve as mitochondrial R-loop suppressor. Conversely, stress-induced matrix-p53 decreases the amount of mitochondrial single-stranded RNA transcripts (including polyA- and non-polyA RNAs), thereby leading to the decline in the amount of mitochondria-encoded oxidative phosphorylation components.
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Affiliation(s)
- Yael Friedman
- Infectious Diseases Unit, Sheba Medical Center, Tel-Hashomer 5265601, Israel
| | - Amnon Hizi
- Department of Cellular and Developmental Biology, Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Dror Avni
- Lab. Mol. Cell Biology, Center for Cancer Research & Dep. of Medicine C, Sheba Medical Center, Tel Hashomer, Israel
| | - Mary Bakhanashvili
- Infectious Diseases Unit, Sheba Medical Center, Tel-Hashomer 5265601, Israel; The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel.
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Trujillo-Uscanga A, Gutiérrez-Escolano AL. Host cell p53 associates with the feline calicivirus major viral capsid protein VP1, the protease-polymerase NS6/7, and the double-stranded RNA playing a role in virus replication. Virology 2020; 550:78-88. [PMID: 32890980 PMCID: PMC7451061 DOI: 10.1016/j.virol.2020.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 08/12/2020] [Accepted: 08/18/2020] [Indexed: 11/03/2022]
Abstract
p53 is implicated in several cellular pathways such as induction of cell-cycle arrest, differentiation, senescence, and apoptosis. p53 is activated by a broad range of stress signals, including viral infections. While some viruses activate p53, others induce its inactivation, and occasionally p53 is differentially modulated during the replicative cycle. During calicivirus infections, apoptosis is required for virus exit and spread into the host; yet, the role of p53 during infection is unknown. By confocal microscopy, we found that p53 associates with FCV VP1, the protease-polymerase NS6/7, and the dsRNA. This interaction was further confirmed by proximity ligation assays, suggesting that p53 participates in the FCV replication. Knocked-down of p53 expression in CrFK cells before infection, resulted in a strong reduction of the non-structural protein levels and a decrease of the viral progeny production. These results indicate that p53 is associated with the viral replication complex and is required for an efficient FCV replication. Host cell p53 protein levels and subcellular localization do not change during FCV infection. Host cell p53 associates with FCV major viral capsid protein VP1, protease-polymerase NS6/7, and the dsRNA in FCV infected cells. Host cell p53 is required for a FCV replication.
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Affiliation(s)
- Adrian Trujillo-Uscanga
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del IPN, México City, Mexico
| | - Ana Lorena Gutiérrez-Escolano
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del IPN, México City, Mexico.
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