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Zhou Y, Cao Y, Liu W, Wang L, Kuang Y, Zhou Y, Chen Q, Cheng Z, Huang H, Zhang W, Jiang X, Wang B, Ren C. Leveraging a gene signature associated with disulfidptosis identified by machine learning to forecast clinical outcomes, immunological heterogeneities, and potential therapeutic targets within lower-grade glioma. Front Immunol 2023; 14:1294459. [PMID: 38162649 PMCID: PMC10757341 DOI: 10.3389/fimmu.2023.1294459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 11/27/2023] [Indexed: 01/03/2024] Open
Abstract
Background Disulfidptosis, a newly defined type of programmed cell death, has emerged as a significant regulatory process in the development and advancement of malignant tumors, such as lower-grade glioma (LGG). Nevertheless, the precise biological mechanisms behind disulfidptosis in LGG are yet to be revealed, considering the limited research conducted in this field. Methods We obtained LGG data from the TCGA and CGGA databases and performed comprehensive weighted co-expression network analysis, single-sample gene set enrichment analysis, and transcriptome differential expression analyses. We discovered nine genes associated with disulfidptosis by employing machine learning methods like Cox regression, LASSO regression, and SVM-RFE. These were later used to build a predictive model for patients with LGG. To confirm the expression level, functional role, and impact on disulfidptosis of ABI3, the pivotal gene of the model, validation experiments were carried out in vitro. Results The developed prognostic model successfully categorized LGG patients into two distinct risk groups: high and low. There was a noticeable difference in the time the groups survived, which was statistically significant. The model's predictive accuracy was substantiated through two independent external validation cohorts. Additional evaluations of the immune microenvironment and the potential for immunotherapy indicated that this risk classification could function as a practical roadmap for LGG treatment using immune-based therapies. Cellular experiments demonstrated that suppressing the crucial ABI3 gene in the predictive model significantly reduced the migratory and invasive abilities of both SHG44 and U251 cell lines while also triggering cytoskeletal retraction and increased cell pseudopodia. Conclusion The research suggests that the prognostic pattern relying on genes linked to disulfidptosis can provide valuable insights into the clinical outcomes, tumor characteristics, and immune alterations in patients with LGG. This could pave the way for early interventions and suggests that ABI3 might be a potential therapeutic target for disulfidptosis.
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Affiliation(s)
- Yao Zhou
- National Health Commission (NHC) Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Yudong Cao
- National Health Commission (NHC) Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Weidong Liu
- National Health Commission (NHC) Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Lei Wang
- National Health Commission (NHC) Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Yirui Kuang
- National Health Commission (NHC) Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yi Zhou
- National Health Commission (NHC) Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Quan Chen
- National Health Commission (NHC) Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zeyu Cheng
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Haoxuan Huang
- National Health Commission (NHC) Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wenlong Zhang
- National Health Commission (NHC) Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xingjun Jiang
- National Health Commission (NHC) Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Binbin Wang
- Department of Neurosurgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Caiping Ren
- National Health Commission (NHC) Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, Hunan, China
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2
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Ordonez-Rubiano SC, Maschinot CA, Wang S, Sood S, Baracaldo-Lancheros LF, Strohmier BP, McQuade AJ, Smith BC, Dykhuizen EC. Rational Design and Development of Selective BRD7 Bromodomain Inhibitors and Their Activity in Prostate Cancer. J Med Chem 2023; 66:11250-11270. [PMID: 37552884 PMCID: PMC10641717 DOI: 10.1021/acs.jmedchem.3c00671] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
Bromodomain-containing proteins are readers of acetylated lysine and play important roles in cancer. Bromodomain-containing protein 7 (BRD7) is implicated in multiple malignancies; however, there are no selective chemical probes to study its function in disease. Using crystal structures of BRD7 and BRD9 bromodomains (BDs) bound to BRD9-selective ligands, we identified a binding pocket exclusive to BRD7. We synthesized a series of ligands designed to occupy this binding region and identified two inhibitors with increased selectivity toward BRD7, 1-78 and 2-77, which bind with submicromolar affinity to the BRD7 BD. Our binding mode analyses indicate that these ligands occupy a uniquely accessible binding cleft in BRD7 and maintain key interactions with the asparagine and tyrosine residues critical for acetylated lysine binding. Finally, we validated the utility and selectivity of the compounds in cell-based models of prostate cancer.
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Affiliation(s)
- Sandra C Ordonez-Rubiano
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University. Robert Heine Pharmacy Building 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Chad A Maschinot
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University. Robert Heine Pharmacy Building 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Sijie Wang
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University. Robert Heine Pharmacy Building 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Surbhi Sood
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University. Robert Heine Pharmacy Building 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Luisa F Baracaldo-Lancheros
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University. Robert Heine Pharmacy Building 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Brayden P Strohmier
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University. Robert Heine Pharmacy Building 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Alexander J McQuade
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University. Robert Heine Pharmacy Building 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Brian C Smith
- Department of Biochemistry, Program in Chemical Biology, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, United States
| | - Emily C Dykhuizen
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University. Robert Heine Pharmacy Building 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
- Purdue Center for Cancer Research, College of Pharmacy, Purdue University, 201 S University St., West Lafayette, Indiana 47907, United States
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Li M, Duan Y, Wei J, Chen S, Xue C, Zheng L, Deng H, Fan S, Xiong W, Li G, Tan M, Tang F, She K, Zhou M. Yin Yang 1 suppresses tumor invasion and metastasis in nasopharyngeal carcinoma by negatively regulating eIF4E transcriptional activity and expression. Am J Cancer Res 2023; 13:3763-3780. [PMID: 37693135 PMCID: PMC10492101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 07/25/2023] [Indexed: 09/12/2023] Open
Abstract
Tumor metastasis is a leading cause of death in nasopharyngeal carcinoma (NPC) patients. Previous research has identified that transcription factor Yin Yang 1 (YY1) acts as a tumor suppressor that inhibits cell proliferation and tumor growth in NPC; however, the role and the molecular mechanisms of YY1 in NPC invasion and metastasis remain unclear. In this study, we discovered that YY1 could inhibit the migration and invasion of NPC cells in vitro as well as NPC xenograft tumor metastasis in vivo. Furthermore, we identified eIF4E as a direct downstream target of YY1, and YY1 could negatively regulate the expression of eIF4E at transcriptional level. Moreover, we found that eIF4E promoted the migration and invasion of NPC cells as well as NPC lung metastasis, suggesting its potential as a pro-metastatic mediator in NPC. Importantly, restoring eIF4E expression could partially reverse the inhibitory effects of YY1 on NPC malignancy. In consistent with these findings, the expression of YY1 was downregulated while eIF4E was upregulated in NPC patients with metastasis, and there was a negative correlation between YY1 and eIF4E expression. Collectively, our results indicate that YY1 suppresses the invasion and metastasis of NPC by negatively regulating eIF4E transcription. Therefore, targeting the YY1/eIF4E transcriptional axis could be a potential therapeutic strategy for the treatment of patients with NPC.
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Affiliation(s)
- Mengna Li
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South UniversityChangsha 410078, Hunan, China
- Cancer Research Institute and School of Basic Medical Sciences, Central South UniversityChangsha 410078, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Central South UniversityChangsha 410078, Hunan, China
| | - Yumei Duan
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South UniversityChangsha 410078, Hunan, China
- Cancer Research Institute and School of Basic Medical Sciences, Central South UniversityChangsha 410078, Hunan, China
- Department of Pathology, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, China
| | - Jianxia Wei
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South UniversityChangsha 410078, Hunan, China
- Cancer Research Institute and School of Basic Medical Sciences, Central South UniversityChangsha 410078, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Central South UniversityChangsha 410078, Hunan, China
| | - Shipeng Chen
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South UniversityChangsha 410078, Hunan, China
- Cancer Research Institute and School of Basic Medical Sciences, Central South UniversityChangsha 410078, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Central South UniversityChangsha 410078, Hunan, China
| | - Changning Xue
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South UniversityChangsha 410078, Hunan, China
- Cancer Research Institute and School of Basic Medical Sciences, Central South UniversityChangsha 410078, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Central South UniversityChangsha 410078, Hunan, China
| | - Lemei Zheng
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South UniversityChangsha 410078, Hunan, China
- Cancer Research Institute and School of Basic Medical Sciences, Central South UniversityChangsha 410078, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Central South UniversityChangsha 410078, Hunan, China
| | - Hongyu Deng
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South UniversityChangsha 410078, Hunan, China
- Cancer Research Institute and School of Basic Medical Sciences, Central South UniversityChangsha 410078, Hunan, China
| | - Songqing Fan
- Department of Pathology, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
| | - Wei Xiong
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South UniversityChangsha 410078, Hunan, China
- Cancer Research Institute and School of Basic Medical Sciences, Central South UniversityChangsha 410078, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Central South UniversityChangsha 410078, Hunan, China
| | - Guiyuan Li
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South UniversityChangsha 410078, Hunan, China
- Cancer Research Institute and School of Basic Medical Sciences, Central South UniversityChangsha 410078, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Central South UniversityChangsha 410078, Hunan, China
| | - Ming Tan
- Graduate Institute of Biomedical Sciences and Research Center for Cancer Biology, China Medical UniversityTaichung 406040, Taiwan
| | - Faqing Tang
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South UniversityChangsha 410078, Hunan, China
| | - Kelin She
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South UniversityChangsha 410078, Hunan, China
- Cancer Research Institute and School of Basic Medical Sciences, Central South UniversityChangsha 410078, Hunan, China
- Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Nomal UniversityChangsha 410005, Hunan, China
| | - Ming Zhou
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South UniversityChangsha 410078, Hunan, China
- Cancer Research Institute and School of Basic Medical Sciences, Central South UniversityChangsha 410078, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Central South UniversityChangsha 410078, Hunan, China
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4
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BRD7 inhibits enhancer activity and expression of BIRC2 to suppress tumor growth and metastasis in nasopharyngeal carcinoma. Cell Death Dis 2023; 14:121. [PMID: 36788209 PMCID: PMC9929072 DOI: 10.1038/s41419-023-05632-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 01/30/2023] [Accepted: 01/30/2023] [Indexed: 02/16/2023]
Abstract
BRD7 functions as a crucial tumor suppressor in numerous malignancies including nasopharyngeal carcinoma (NPC). However, its function and exact mechanisms involved in tumor progression are not well understood. Here, we found that the B7BS was a potential enhancer region of BIRC2, and BRD7 negatively regulated the transcriptional activity and expression of BIRC2 by targeting the activation of the BIRC2 enhancer. Moreover, BIRC2 promoted cell proliferation, migration, invasion as well as xenograft tumor growth and metastasis in vivo, thus functioning as an oncogene in NPC. Furthermore, the recovery of BIRC2 expression could rescue the inhibitory effect of BRD7 on cell proliferation, migration, invasion and xenograft tumor growth and metastasis. In addition, BIRC2 was highly-expressed in NPC tissues, and positively correlated with the TNM stage and negatively correlated with the expression of BRD7. Therefore, these results suggest that BRD7 suppresses tumor growth and metastasis thus functioning as a tumor suppressor at least partially by negatively regulating the enhancer activity and expression of BIRC2, and targeting the BRD7/BIRC2 regulation axis might be a potential strategy for the diagnosis and treatment of NPC.
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5
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Li S, Yang L, Li Y, Yue W, Xin S, Li J, Long S, Zhang W, Cao P, Lu J. Epstein-Barr Virus Synergizes with BRD7 to Conquer c-Myc-Mediated Viral Latency Maintenance via Chromatin Remodeling. Microbiol Spectr 2023; 11:e0123722. [PMID: 36728436 PMCID: PMC10101146 DOI: 10.1128/spectrum.01237-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 01/06/2023] [Indexed: 02/03/2023] Open
Abstract
Epstein-Barr virus (EBV) switches between latent and lytic phases in hosts, which is important in the development of related diseases. However, the underlying mechanism of controlling the viral biphasic life cycle and how EBV mediates this regulation remain largely unknown. This study identified bromodomain-containing protein 7 (BRD7) as a crucial host protein in EBV latent infection. Based on the chromatin immunoprecipitation (ChIP) sequencing of endogenous BRD7 in Burkitt lymphoma cells, we found that EBV drove BRD7 to regulate cellular and viral genomic loci, including the transcriptional activation of c-Myc, a recently reported regulator of EBV latency. Additionally, EBV-mediated BRD7 signals were enriched around the FUSE (far-upstream sequence element) site in chromosome 8 and the enhancer LOC108348026 in the lgH locus, which might activate the c-Myc alleles. Mechanically, EBV-encoded nuclear antigen 1 (EBNA1) bound to BRD7 and colocalized at promoter regions of the related genes, thus serving as cofactors for the maintenance of viral latency. Moreover, the disruption of BRD7 decreased the c-Myc expression, induced the BZLF1 expression, and reactivated the lytic cycle. Our findings reveal the unique role of BRD7 to synergize with EBV in maintaining the viral latency state via chromatin remodeling. This study paves the way for understanding the new molecular mechanism of EBV-induced chromatin remodeling and latent-lytic switch, providing novel therapeutic candidate targets for EBV persistent infection. IMPORTANCE When establishing persistent infection in most human hosts, EBV is usually latent. How the viral latency is maintained in cells remains largely unknown. c-Myc was recently reported to act as a controller of the lytic switch, while whether and how EBV regulates it remain to be explored. Here, we identified that BRD7 is involved in controlling EBV latency. We found that EBV-mediated BRD7 was enriched in both the normal promoter regions and the translocation alleles of c-Myc, and disruption of BRD7 decreased c-Myc expression to reactivate the lytic cycle. We also demonstrated that EBV-encoded EBNA1 bound to and regulated BRD7. Therefore, we reveal a novel mechanism by which EBV can regulate its infection state by coordinating with host BRD7 to target c-Myc. Our findings will help future therapeutic intervention strategies for EBV infection and pathogenesis.
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Affiliation(s)
- Shen Li
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
- Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, NHC Key Laboratory of Carcinogenesis, Cancer Research Institute, Central South University, Changsha, Hunan, China
- Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- China-Africa Research Center of Infectious Diseases, Central South University, Changsha, Hunan, China
| | - Li Yang
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
- Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, NHC Key Laboratory of Carcinogenesis, Cancer Research Institute, Central South University, Changsha, Hunan, China
- Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- China-Africa Research Center of Infectious Diseases, Central South University, Changsha, Hunan, China
| | - Yanling Li
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
- Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, NHC Key Laboratory of Carcinogenesis, Cancer Research Institute, Central South University, Changsha, Hunan, China
- China-Africa Research Center of Infectious Diseases, Central South University, Changsha, Hunan, China
| | - Wenxing Yue
- Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, NHC Key Laboratory of Carcinogenesis, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Shuyu Xin
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
- Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, NHC Key Laboratory of Carcinogenesis, Cancer Research Institute, Central South University, Changsha, Hunan, China
- Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- China-Africa Research Center of Infectious Diseases, Central South University, Changsha, Hunan, China
| | - Jing Li
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
- Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, NHC Key Laboratory of Carcinogenesis, Cancer Research Institute, Central South University, Changsha, Hunan, China
- Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- China-Africa Research Center of Infectious Diseases, Central South University, Changsha, Hunan, China
| | - Sijing Long
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
- Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, NHC Key Laboratory of Carcinogenesis, Cancer Research Institute, Central South University, Changsha, Hunan, China
- Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- China-Africa Research Center of Infectious Diseases, Central South University, Changsha, Hunan, China
| | - Wentao Zhang
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
- Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, NHC Key Laboratory of Carcinogenesis, Cancer Research Institute, Central South University, Changsha, Hunan, China
- Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- China-Africa Research Center of Infectious Diseases, Central South University, Changsha, Hunan, China
| | - Pengfei Cao
- Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jianhong Lu
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
- Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, NHC Key Laboratory of Carcinogenesis, Cancer Research Institute, Central South University, Changsha, Hunan, China
- Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- China-Africa Research Center of Infectious Diseases, Central South University, Changsha, Hunan, China
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Czerwinska P, Mackiewicz AA. Bromodomain (BrD) Family Members as Regulators of Cancer Stemness-A Comprehensive Review. Int J Mol Sci 2023; 24:995. [PMID: 36674511 PMCID: PMC9861003 DOI: 10.3390/ijms24020995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/30/2022] [Accepted: 12/31/2022] [Indexed: 01/06/2023] Open
Abstract
Epigenetic mechanisms involving DNA methylation and chromatin modifications have emerged as critical facilitators of cancer heterogeneity, substantially affecting cancer development and progression, modulating cell phenotypes, and enhancing or inhibiting cancer cell malignant properties. Not surprisingly, considering the importance of epigenetic regulators in normal stem cell maintenance, many chromatin-related proteins are essential to maintaining the cancer stem cell (CSC)-like state. With increased tumor-initiating capacities and self-renewal potential, CSCs promote tumor growth, provide therapy resistance, spread tumors, and facilitate tumor relapse after treatment. In this review, we characterized the epigenetic mechanisms that regulate the acquisition and maintenance of cancer stemness concerning selected epigenetic factors belonging to the Bromodomain (BrD) family of proteins. An increasing number of BrD proteins reinforce cancer stemness, supporting the maintenance of the cancer stem cell population in vitro and in vivo via the utilization of distinct mechanisms. As bromodomain possesses high druggable potential, specific BrD proteins might become novel therapeutic targets in cancers exhibiting de-differentiated tumor characteristics.
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Affiliation(s)
- Patrycja Czerwinska
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznan, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
| | - Andrzej Adam Mackiewicz
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznan, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
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7
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Li H, Yang T, Chen T, Liu Y, Pang Y, Yang L. BRD7 restrains TNF-α-induced proliferation and migration of airway smooth muscle cells by inhibiting notch signaling. Exp Lung Res 2022; 48:199-212. [PMID: 35943053 DOI: 10.1080/01902148.2022.2107730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Objective: Bromodomain-containing protein 7 (BRD7) is a key component of the switch/sucrose non-fermentable complex that participates in chromatin remodeling and transcriptional regulation. Although the emerging role of BRD7 in the pathophysiology of various diseases has been observed, its role in asthma remains unknown. Here, we assessed the function of BRD7 as a mediator of airway remodeling in asthma using an in vitro model. Methods: Airway smooth muscle cells (ASMCs) were challenged with tumor necrosis factor-α (TNF-α) to establish an in vitro airway remodeling model. Protein levels were examined using western blotting. Cell proliferation was measured using the cell counting kit-8 and 5-ethynyl-2'-deoxyuridine assays. Cell migration was assessed using a transwell migration assay. Results: Exposure to TNF-α dramatically decreased BRD7 levels in ASMCs. BRD7 remarkably decreased TNF-α-induced proliferation and migration of ASMCs. In contrast, ASMCs with BRD7 deficiency were more sensitive to TNF-α-induced pro-proliferative and pro-migratory effects. Mechanistically, BRD7 could repress the expression of Notch1 and block the Notch pathway in TNF-α-challenged cells. Notably, reactivation of Notch signaling substantially reversed the BRD7 overexpression-mediated effects, whereas restraining Notch signaling abolished BRD7-depletion-mediated effects on TNF-α-challenged cells. Conclusions: BRD7 inhibits the proliferation and migration of ASMCs elicited by TNF-α by downregulating the Notch pathway. This study indicates that BRD7 may exert a suppressive effect on airway remodeling during asthma.
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Affiliation(s)
- Hong Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China
| | - Tian Yang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China
| | - Tianjun Chen
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China
| | - Ya Liu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China
| | - Yamei Pang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China
| | - Lan Yang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China
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8
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Zheng L, Li M, Wei J, Chen S, Xue C, Zhan Y, Duan Y, Deng H, Xiong W, Li G, Zhou M. The emerging roles of the interaction between m6A modification and c-Myc in driving tumorigenesis and development. J Cell Physiol 2022; 237:2758-2769. [PMID: 35388487 DOI: 10.1002/jcp.30733] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 03/04/2022] [Accepted: 03/21/2022] [Indexed: 12/24/2022]
Abstract
N6-methyladenosine (m6A) is an extremely common and conservative posttranscriptional modification, that can specifically target and regulate the expression or stability of a series of tumor-related genes, thus playing critical roles in the occurrence and development of tumors. c-Myc is an important tumorigenic transcription factor that promotes tumorigenesis and development by mainly regulating the expression of downstream target genes. Increasing evidence shows that m6A modification, as well as abnormal expression and regulation of c-Myc, is critical molecular mechanisms driving tumorigenesis and development. Although more evidence has been uncovered about the individual roles of m6A modification or c-Myc in tumors, the interaction between m6A modification and c-Myc in tumorigenesis and development has not been systematically summarized. Therefore, this review is focused on the mutual regulation between m6A modification and c-Myc expression and stability as well as its roles in tumorigenesis and development. We also summarized the potential value of the interaction between m6A modification and m6A expression and stability in tumor diagnosis and treatment, which provides a specific reference for revealing the mechanism of tumor occurrence and development as well as clinical diagnosis and treatment.
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Affiliation(s)
- Lemei Zheng
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Mengna Li
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Jianxia Wei
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Shipeng Chen
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Changning Xue
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Yuting Zhan
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yumei Duan
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Hongyu Deng
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Wei Xiong
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Guiyuan Li
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Ming Zhou
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
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9
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Wang Y, Yan Q, Mo Y, Liu Y, Wang Y, Zhang S, Guo C, Wang F, Li G, Zeng Z, Xiong W. Splicing factor derived circular RNA circCAMSAP1 accelerates nasopharyngeal carcinoma tumorigenesis via a SERPINH1/c-Myc positive feedback loop. Mol Cancer 2022; 21:62. [PMID: 35227262 PMCID: PMC8883650 DOI: 10.1186/s12943-022-01502-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/06/2022] [Indexed: 01/04/2023] Open
Abstract
Background Circular RNAs play an important role in tumor genesis and progression, but they have not been sufficiently studied in patients with nasopharyngeal carcinoma (NPC). Methods The circular RNA, circCAMSAP1, was screened in NPC cells by RNA sequencing analysis. The expression of circCAMSAP1 in NPC tissues was examined by real-time quantitative polymerase chain reaction (RT-qPCR) and in situ hybridization. Wound-healing, transwell, MTT and flow cytometry assays, and nude mouse tumor models were used to explore the effect of circCAMSAP1 on proliferation and metastasis of NPC in vitro or in vivo. The downstream proteins regulated by circCAMSAP1 were screened using mass spectrometry. The interaction between circCAMSAP1 and the SERPINH1 mRNA was identified using the circular RNA immunoprecipitation method and the luciferase reporter assay. The interaction between SERPINH1 and transcription factor c-Myc was verified through Co-immunoprecipitation (Co-IP) and immunofluorescence. The effect of c-Myc on the generation of circCAMSAP1 was examined through RT-qPCR and chromatin immunoprecipitation. Finally, the splicing factors that promote the production of circCAMSAP1 were explored by RT-qPCR and RNA immunoprecipitation (RIP). Results We found that circCAMSAP1 was highly expressed in NPC tissues and promoted NPC proliferation and metastasis. Additionally, circCAMSAP1 promoted SERPINH1 expression through improved SERPINH1 mRNA stability by binding to the 3′-untranslated region (3’UTR) of SERPINH1. Highly expressed SERPINH1 reduced the ubiquitination-degradation rate of c-Myc, causing increased tumorigenesis. Meanwhile, c-Myc, cooperating with splicing factor 10 (SRSF10), could also promote CAMSAP1 pre-mRNA transcription and back-splicing, forming a positive feedback of circCAMSAP1 production, resulting in the proliferation and metastasis of NPC. Conclusions Our findings revealed that circCAMSAP1 promotes NPC proliferation and metastasis by binding to the 3’UTR of SERPINH1, suggesting that the positive feedback of circCAMSAP1-SERPINH1-c-Myc may serve as a prognostic biomarker or therapeutic target in patients with NPC. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-022-01502-2.
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10
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Du M, Peng Y, Li Y, Sun W, Zhu H, Wu J, Zong D, Wu L, He X. MYC-activated RNA N6-methyladenosine reader IGF2BP3 promotes cell proliferation and metastasis in nasopharyngeal carcinoma. Cell Death Dis 2022; 8:53. [PMID: 35136045 PMCID: PMC8826370 DOI: 10.1038/s41420-022-00844-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 01/05/2022] [Accepted: 01/21/2022] [Indexed: 12/21/2022]
Abstract
N6-Methyladenosine (m6A) modification is the most abundant RNA modification in eukaryotic cells. IGF2BP3, a well-known m6A reader, is deregulated in many cancers, but its role in nasopharyngeal carcinoma (NPC) remains unclear. In this work, IGF2BP3 was upregulated in NPC tissues and cells. The high level of IGF2BP3 was positively related to late clinical stages, node metastasis, and poor outcomes. Moreover, IGF2BP3 accelerated NPC cell tumor progression and metastasis in vitro and vivo. Upstream mechanism analyses indicated that the high expression of IGF2BP3 in head and neck tumors was mainly due to mRNA level amplification. Luciferase assay and chromatin immunoprecipitation assay (CHIP) depicted that MYC was effectively bound to the promoter of IGF2BP3, thereby improving its transcriptional activity. Results also showed that IGF2BP3 was not only positively correlated with KPNA2 expression but also modulated the expression of KPNA2. m6A RNA immunoprecipitation (MeRIP) and RNA stability experiments verified that silencing IGF2BP3 significantly inhibited the m6A modification level of KPNA2, thereby stabilizing the mRNA stability of KPNA2. Rescue experiments proved that the effect of inhibiting or overexpressing IGF2BP3 on NPC cells was partly reversed by KPNA2. Collectively, MYC-activated IGF2BP3 promoted NPC cell proliferation and metastasis by influencing the stability of m6A-modified KPNA2. Our findings offer new insights that IGF2BP3 may serve as a new molecular marker and potential therapeutic target for NPC treatment.
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Affiliation(s)
- Mingyu Du
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, 42 Baiziting Road, Nanjing, Jiangsu, China
| | - Yi Peng
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, 42 Baiziting Road, Nanjing, Jiangsu, China
| | - Yang Li
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, 42 Baiziting Road, Nanjing, Jiangsu, China
| | - Wenyue Sun
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, 42 Baiziting Road, Nanjing, Jiangsu, China
| | - Huanfeng Zhu
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, 42 Baiziting Road, Nanjing, Jiangsu, China
| | - Jing Wu
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, 42 Baiziting Road, Nanjing, Jiangsu, China
| | - Dan Zong
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, 42 Baiziting Road, Nanjing, Jiangsu, China
| | - Lirong Wu
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, 42 Baiziting Road, Nanjing, Jiangsu, China
| | - Xia He
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, 42 Baiziting Road, Nanjing, Jiangsu, China.
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11
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Li B, Cao Y, Sun M, Feng H. Expression, regulation, and function of exosome-derived miRNAs in cancer progression and therapy. FASEB J 2021; 35:e21916. [PMID: 34510546 DOI: 10.1096/fj.202100294rr] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 08/23/2021] [Accepted: 08/27/2021] [Indexed: 12/13/2022]
Abstract
Exosomes are a novel class of intercellular signal modulators that contain a wide range of molecules and deliver information between cells and tissues. MicroRNAs (miRNAs), a type of regulatory non-coding RNA, are often incorporated into exosomes as signaling molecules. In this review, we discuss the expression of exosomal miRNAs from diverse origins such as tumor cells, solid tumor tissue, and biological fluids in various cancers (lung, breast, colorectal, liver, stomach, and pancreatic). We address the biological functions of exosome-derived miRNAs in processes such as tumor-cell proliferation, angiogenesis, metastasis, and chemoresistance in the tumor microenvironment. In particular, we discuss three oncogenic miRNAs, miR-21, miR-141, and miR-451, which occur within exosomes, in terms of gene regulation and intercellular communication. We consider therapeutic miRNA-based nanoparticles, which are widely expressed in tumors and show promise in drug therapy. The review assesses the wide-ranging evidence for using exosomal miRNAs as tumor markers in molecular diagnosis. Further, we consider the use of nanoparticle platforms to transport miRNAs, in the targeted treatment of disease and tumors.
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Affiliation(s)
- Bowen Li
- Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yu Cao
- Department of Breast Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Mingjun Sun
- Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Hui Feng
- Department of Immunology, College of Basic Medical Sciences, China Medical University, Shenyang, China
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12
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Shaw P, Senthilnathan R, Krishnan S, Suresh D, Shetty S, Muthukaliannan GK, Mani RR, Sivanandy P, Chandramoorthy HCK, Gupta MM, Baxi S, Jayaraj R. A Clinical Update on the Prognostic Effect of microRNA Biomarkers for Survival Outcome in Nasopharyngeal Carcinoma: A Systematic Review and Meta-Analysis. Cancers (Basel) 2021; 13:cancers13174369. [PMID: 34503179 PMCID: PMC8431423 DOI: 10.3390/cancers13174369] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/19/2021] [Accepted: 08/24/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Current estimates by GLOBOCAN now incorporate NPC as a malignancy discrete from other head and neck malignancies among the 36 disease locales assessed. Based on the latest report, the global cancer burden is estimated to have risen to 19.3 million new cases, and 9.6 million malignancies were recorded in 2020 throughout the world. The study has clinical implications and could improve treatment decision-making and post-treatment care. The study could also motivate future clinical research and development in the arena of NPC prognostic biomarkers.ve men and one in every six women develops cancer during their lifetime, and one out of eight men and one in every 11 women progresses to chronic stage. The study has clinical implications and could improve treatment decision-making and post-treatment care. The study could also motivate future clinical research and development in the arena of NPC prognostic biomarkers. Abstract Background: Nasopharyngeal carcinoma (NPC), a relatively uncommon malignancy in the Western world, is highly prevalent in Southeast Asia where the treatment outcomes are poor. Despite recent improvements in diagnosis and treatment locoregional control, distant metastasis and chemoresistance continue to be a significant cause of mortality. Identification of a reliable and comprehensive prognostic biomarker is highly desirable. The potential relevance of microRNAs (miRNAs) as prognostic markers in NPC is assessed in this systematic review and meta-analysis. Methods: A systematic review was performed using the PubMed and Science Direct databases. The search was limited to search results between 2018 and 2020 with the keywords and search strings developed as per the Preferred Reporting Items for Systematic Review and Meta-analysis (PRISMA) guidelines. The recovered articles were carefully screened based on the selection criteria. In the meta-analysis study, high and low expression levels of miRNAs were measured using the hazard ratio (HR) and 95 percent confidence interval (CI) for patients’ survival outcomes. Egger’s bias indicator test and funnel plot symmetry were used to assess the risk of bias. Results: Amongst the 25 studies, 13 fulfilled the conditions of inclusion in this meta-analysis. The researchers further delved into the 21 miRNA expression levels from 3015 NPC patients to ascertain a link between miRNA’s predictive role and survival outcomes. The majority of the articles retrieved during this study were from China, with two studies from Canada and Malaysia. The overall pooled effect size estimation (HR) for dysregulated miRNAs was 1.590 (95% CI: 1.253–2.017), displaying that miRNA marker expression increased the risk of mortality in NPC patients by 59%. Conclusions: This meta-analysis is novel and looks at the prognostic significance of miRNAs as biomarkers in NPC patients using a continuous version pooled meta-analysis. Although our findings are ambiguous, they do show that greater miRNA expression in NPC may be associated with a lower overall survival rate. To acquire clear conclusions, more prospective studies with large cohorts are required to determine the clinical utility of miRNAs as prognostic biomarkers.
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Affiliation(s)
- Peter Shaw
- Department of Artificial Intelligence, Nanjing University of Information Science and Technology (NUIST), Nanjing 210044, China;
| | - Raghul Senthilnathan
- School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore 632014, India; (R.S.); (G.K.M.)
| | - Sunil Krishnan
- Department of Radiation Oncology, Mayo Clinic Florida, Jacksonville, FL 32224, USA;
| | - Deepa Suresh
- Division of Endocrinology, Department of Internal Medicine, Mayo Clinic Florida, Jacksonville, FL 32224, USA;
| | - Sameep Shetty
- Department of Oral and Maxillofacial Surgery, Manipal College of Dental Sciences, Manipal Academy of Higher Education, A Constituent of MAHE, Manipal 576104, India;
| | | | - Ravishankar Ram Mani
- Department of Pharmaceutical Biology, Faculty of Pharmaceutical Sciences, UCSI University, Cheras, Kuala Lumpur 56000, Malaysia;
| | - Palanisamy Sivanandy
- Department of Pharmacy Practice, School of Pharmacy, International Medical University, Bukit Jalil, Kuala Lumpur 57000, Malaysia;
- School of Postgraduate Studies, International Medical University, Bukit Jalil, Kuala Lumpur 57000, Malaysia
| | | | - Madan Mohan Gupta
- School of Pharmacy, Faculty of Medical Sciences, The University of the West Indies, St. Augustine 3303, Trinidad and Tobago;
| | - Siddhartha Baxi
- John Flynn Hospital, 42 Inland Drive, Tugun, QLD 4224, Australia;
| | - Rama Jayaraj
- Northern Territory Institute of Research and Training, Darwin, NT 0909, Australia
- Correspondence:
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13
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Shi QP, Wang X, Liu ZX, Zhang JJ, Wang ZY. Autoantibody Signatures as a Biomarker Panel for the Detection of Nasopharyngeal Carcinoma. Arch Med Res 2021; 52:620-626. [PMID: 33653596 DOI: 10.1016/j.arcmed.2021.02.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 02/01/2021] [Accepted: 02/11/2021] [Indexed: 02/05/2023]
Abstract
OBJECTIVE The early symptoms of nasopharyngeal carcinoma (NPC) are not obvious, and it is difficult to make early diagnosis. A case-control study was conducted to identify potential biomarkers and established a diagnosis model for nasopharyngeal carcinoma. METHODS Plasma samples of 131 cases of NPC and 132 cases of healthy individuals were incubated with the Ray Biotech Human Lung Cancer IgG Autoantibody Detection Array G1, and signal values were used to develop a risk prediction model for NPC diagnosis. RESULTS Of the 30 autoantibodies, high expression of MAGE-A4, NY-ESO-1, HuD, Survivin, IMDH2, Ubiquilin-1, IMP1, PGP9.5, IMP3, C-Myc and low expression of Cyclin B1 were potential biomarkers for NPC diagnosis (p <0.05), among which Survivin, MAGE-A4 and IMP3 shows higher AUC of 0.674, 0.652 and 0.650 respectively, the specificity of them was 89.39% (95% CI: 82.85-94.08%), 90.15% (95% CI: 83.75-94.65%) and 88.64% (81.95-93.50%).The risk probability analysis for NPC diagnosis based on the panel of Cyclin B1, NY-ESO-1, Survivin, and IMP3 displayed the best diagnosis performance with an AUC of 0.779, p (Yi = 1) = 1/(1+EXP[8.316+1.672*CyclinB1-1.152*NY-ESO-1-2.052*Survivin-0.950*IMP3]), the specificity of that was 86.36% (95% CI: 79.31-91.71%). CONCLUSIONS Our findings demonstrated that the panel of Cyclin B1, NY-ESO-1, Survivin, and IMP3 has a good performance in the detection of NPC, and all 11 autoantibodies may also have a certain significance for the prognosis of NPC.
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Affiliation(s)
- Qian-Ping Shi
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Shantou University Medical College, Shantou, Guangdong, China; Department of Preventive Medicine, Shantou University Medical College, Shantou, Guangdong, China; Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, Guangdong, China
| | - Xuan Wang
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Shantou University Medical College, Shantou, Guangdong, China; Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, Guangdong, China
| | - Zhi-Xi Liu
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Shantou University Medical College, Shantou, Guangdong, China; Department of Preventive Medicine, Shantou University Medical College, Shantou, Guangdong, China; Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, Guangdong, China
| | - Jian-Jun Zhang
- Department of Preventive Medicine, Shantou University Medical College, Shantou, Guangdong, China.
| | - Zhao-Yang Wang
- Department of Radiation Oncology, Shenzhen People's Hospital, Second Clinical Medicine College of Jinan University, Shenzhen, Guangdong, China.
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14
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Long non-coding RNA MIR200CHG promotes breast cancer proliferation, invasion, and drug resistance by interacting with and stabilizing YB-1. NPJ Breast Cancer 2021; 7:94. [PMID: 34272387 PMCID: PMC8285504 DOI: 10.1038/s41523-021-00293-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 06/09/2021] [Indexed: 12/14/2022] Open
Abstract
Long non-coding RNAs (lncRNA) have been identified as key regulators of tumorigenesis and development. We aim to explore the biological functions and molecular mechanisms of lncRNA MIR200CHG in breast cancer. We found that MIR200CHG is highly expressed in breast cancer tissues and is related to the tumor size and histopathological grade. In vitro and in vivo experiments confirmed that MIR200CHG can promote breast cancer proliferation, invasion, and drug resistance. MIR200CHG directly binds to the transcription factor Y-box binding protein-1 (YB-1), and inhibits its ubiquitination and degradation. MIR200CHG regulates YB-1 phosphorylation at serine 102, thereby affecting the expression of genes related to tumor cell proliferation, apoptosis, invasion, and drug resistance. Additionally, MIR200CHG partially affects the expression of miR-200c/141-3p encoded by its intron region. Therefore, MIR200CHG can promote the proliferation, invasion, and drug resistance of breast cancer by interacting with and stabilizing YB-1, and has the potential to become a target for breast cancer treatment.
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15
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Zhao R, Liu Y, Wu C, Li M, Wei Y, Niu W, Yang J, Fan S, Xie Y, Li H, Wang W, Zeng Z, Xiong W, Li X, Li G, Zhou M. BRD7 Promotes Cell Proliferation and Tumor Growth Through Stabilization of c-Myc in Colorectal Cancer. Front Cell Dev Biol 2021; 9:659392. [PMID: 34109174 PMCID: PMC8181413 DOI: 10.3389/fcell.2021.659392] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 03/29/2021] [Indexed: 11/13/2022] Open
Abstract
BRD7 functions as a crucial tumor suppressor in numerous malignancies. However, the effects of BRD7 on colorectal cancer (CRC) progression are still unknown. Here, based on the BRD7 knockout (BRD7-/-) and BRD7 flox/flox (BRD7+/+) mouse models constructed in our previous work, we established an azoxymethane/dextran sodium sulfate (AOM/DSS)-induced mouse model. BRD7+/+ mice were found to be highly susceptible to AOM/DSS-induced colitis-associated CRC, and BRD7 significantly promoted cell proliferation and cell cycle G1/S transition but showed no significant effect on cell apoptosis. Furthermore, BRD7 interacted with c-Myc and stabilized c-Myc by inhibiting its ubiquitin-proteasome-dependent degradation. Moreover, restoring the expression of c-Myc in BRD7-silenced CRC cells restored cell proliferation, cell cycle progression, and tumor growth in vitro and in vivo. In addition, BRD7 and c-Myc were both significantly upregulated in CRC patients, and high expression of these proteins was associated with clinical stage and poor prognosis in CRC patients. Collectively, BRD7 functions as an oncogene and promotes CRC progression by regulating the ubiquitin-proteasome-dependent stabilization of c-Myc protein. Targeting the BRD7/c-Myc axis could be a potential therapeutic strategy for CRC.
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Affiliation(s)
- Ran Zhao
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China.,Department of Pathology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, China
| | - Yukun Liu
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China.,Department of Pathology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, China
| | - Chunchun Wu
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Mengna Li
- Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Yanmei Wei
- Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Weihong Niu
- Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Jing Yang
- Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Songqing Fan
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yong Xie
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Hui Li
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Wei Wang
- Department of Pathology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, China
| | - Zhaoyang Zeng
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Wei Xiong
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Xiaoling Li
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Guiyuan Li
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Ming Zhou
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China.,Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
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16
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Sadoughi F, Mirsafaei L, Dana PM, Hallajzadeh J, Asemi Z, Mansournia MA, Montazer M, Hosseinpour M, Yousefi B. The role of DNA damage response in chemo- and radio-resistance of cancer cells: Can DDR inhibitors sole the problem? DNA Repair (Amst) 2021; 101:103074. [PMID: 33640757 DOI: 10.1016/j.dnarep.2021.103074] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 02/12/2021] [Indexed: 12/15/2022]
Abstract
Up to now, many improvements have been made in providing more therapeutic strategies for cancer patients. The lack of susceptibility to common therapies like chemo- and radio-therapy is one of the reasons why we need more methods in the field of cancer therapy. DNA damage response (DDR) is a set of mechanisms which identifies DNA lesions and triggers the repair process for restoring DNA after causing an arrest in the cell cycle. The ability of DDR in maintaining the genome stability and integrity can be favorable to cancerous cells which are exposed to radiation therapy or are treated with chemotherapeutic agents. When DDR mechanisms are error-free in cancer cells, they can escape the expected cellular death and display resistance to treatment. In this regard, targeting different components of DDR can help to increase the susceptibility of advanced tumors to chemo- and radio-therapy.
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Affiliation(s)
- Fatemeh Sadoughi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
| | - Liaosadat Mirsafaei
- Department of Cardiology, Ramsar Campus, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Parisa Maleki Dana
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
| | - Jamal Hallajzadeh
- Department of Biochemistry and Nutrition, Research Center for Evidence-Based Health Management, Maragheh University of Medical Sciences, Maragheh, Iran.
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
| | - Mohammad Ali Mansournia
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
| | - Majid Montazer
- Department of Thorax Surgery, Tuberculosis and Lung Disease Research Center, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Mohammad Hosseinpour
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Bahman Yousefi
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Biochemistry, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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17
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Chen CL, Mo HQ, Jiang YH, Zhao XH, Ma S, You KY, Pan Y, Liu YM. BRD7 inhibits tumor progression by positively regulating the p53 pathway in hepatocellular carcinoma. J Cancer 2021; 12:1507-1519. [PMID: 33531996 PMCID: PMC7847651 DOI: 10.7150/jca.50293] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 10/28/2020] [Indexed: 12/24/2022] Open
Abstract
Background: Bromodomain-containing protein 7 (BRD7) is identified as a transcriptional regulator and plays an important role in the development and progression of various tumors. Our previous study demonstrated that BRD7 acts as a potential tumor suppressor in hepatocellular carcinoma (HCC). However, the specific molecular mechanism underlying the BRD7-mediated inhibition of HCC progression remains poorly understood. Methods: We performed ChIP-seq analysis to investigate the gene network mediated by BRD7. Immunohistochemical analysis was performed to analyze potential associations between the p53 and BRD7 expression and the effect of their overexpression on disease pathogenesis and outcome. In addition, we performed biological function experiments to determine the effect of BRD7 and p53 on these functions that are central to tumorigenesis. Finally, we employed a BALB/c model for execution of xenograft transplants to examine the effect of either overexpressing or under-expressing BRD7 and p53 on tumor growth in mice injected with cells. Results: Our results suggested that BRD7 regulates the p53 pathway. Specifically, BRD7 was demonstrated to upregulate the transcription level of p53 by directly binding to the upstream regulatory region of the p53 transcriptional initiation site, thereby enhancing its promoter activity. Moreover, immunohistochemical analysis showed that wild-type p53 (WTp53) expression is positively associated with BRD7 expression and survival of patients with HCC. Additionally,changes of p53 expression could affect the tumor suppressive role of BRD7 on HCC cell proliferation, migration/invasion, cell-cycle, and tumor growth in vitro and in vivo. Furthermore, changes of BRD7 expression in HCC cells significantly altered the expression of p53 signal-related molecules such as p21, Bax, Bcl2, and cyclin D1, indicating that BRD7 may positively regulate activation of the p53 pathway. Conclusions: Collectively, our results indicated that BRD7 exerts anti-tumor effects in HCC through transcriptionally activating p53 pathway. These critical roles of BRD7may provide some promising diagnostic and therapeutic targets for HCC.
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Affiliation(s)
- Chang-Long Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China; 510120.,Department of Radiation Oncology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, P. R. China; 510120
| | - Hua-Qian Mo
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China; 510120.,Department of Radiation Oncology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, P. R. China; 510120
| | - Yan-Hui Jiang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China; 510120.,Department of Radiation Oncology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, P. R. China; 510120
| | - Xiao-Hui Zhao
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China; 510120.,Department of Radiation Oncology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, P. R. China; 510120
| | - Shuang Ma
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China; 510120.,Department of Radiation Oncology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, P. R. China; 510120
| | - Kai-Yun You
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China; 510120.,Department of Radiation Oncology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, P. R. China; 510120
| | - Yue Pan
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China; 510120.,Center for Precision Medicine, Sun Yat-Sen University, Guangzhou, 510080, P. R. China; 510120
| | - Yi-Min Liu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China; 510120.,Department of Radiation Oncology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, P. R. China; 510120
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18
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Zhang Z, Guo M, Shen M, Kong D, Zhang F, Shao J, Tan S, Wang S, Chen A, Cao P, Zheng S. The BRD7-P53-SLC25A28 axis regulates ferroptosis in hepatic stellate cells. Redox Biol 2020; 36:101619. [PMID: 32863216 PMCID: PMC7330619 DOI: 10.1016/j.redox.2020.101619] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 06/05/2020] [Accepted: 06/18/2020] [Indexed: 12/13/2022] Open
Abstract
Ferroptosis is a recently discovered form of programmed cell death, but its regulatory mechanisms are not fully understood. In the current study, we reported that the BRD7-P53-SLC25A28 axis played a crucial role in regulating ferroptosis in hepatic stellate cells (HSCs). Upon exposure to ferroptosis inducers, bromodomain-containing protein 7 (BRD7) protein expression was remarkably increased through the inhibition of the ubiquitin-proteasome pathway. CRISPR/Cas9-mediated BRD7 knockout conferred resistance to HSC ferroptosis, whereas specific BRD7 plasmid-mediated BRD7 overexpression facilitated HSC ferroptosis. Interestingly, the elevated BRD7 expression exhibited to promote p53 mitochondrial translocation via direct binding with p53 N-terminal transactivation domain (TAD), which may be the underlying mechanisms for BRD7-enhanced HSC ferroptosis. Site-directed mutations of serine 392 completely blocked the binding of BRD7 to p53, and, in turn, prevented p53 mitochondrial translocation and HSC ferroptosis. Importantly, mitochondrial p53 interacted with solute carrier family 25 member 28 (SLC25A28) to form complex and enhanced the activity of SLC25A28, which could lead to the abnormal accumulation of redox-active iron and hyperfunction of electron transfer chain (ETC). SLC25A28 knockdown impaired BRD7-or p53-mediated ferroptotic events. In mice, erastin treatment ameliorated pathological damage of liver fibrosis through inducing HSC ferroptosis. HSC-specific blockade of BRD7-P53-SLC25A28 axis could abrogate erastin-induced HSC ferroptosis. Of note, we analyzed the effect of sorafenib on HSC ferroptosis in advanced fibrotic patients with hepatocellular carcinoma receiving sorafenib monotherapy. Attractively, BRD7 upregulation, p53 mitochondrial translocation, combination of SLC25A28 and p53, and ferroptosis induction occurred in primary human HSCs. Overall, these findings reveal novel signal transduction and regulatory mechanism of ferroptosis, and also suggest BRD7-P53-SLC25A28 axis as potential targets for liver fibrosis.
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Affiliation(s)
- Zili Zhang
- Department of Pharmacology, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Mei Guo
- Department of Pathogenic Biology and Immunology, Medical School, Southeast University, Nanjing, 210009, China
| | - Min Shen
- Department of Pharmacology, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Desong Kong
- Department of Pharmacology, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Feng Zhang
- Department of Pharmacology, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Jiangjuan Shao
- Department of Pharmacology, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Shanzhong Tan
- Nanjing Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing, 210003, China
| | - Shijun Wang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250035, China
| | - Anping Chen
- Department of Pathology, School of Medicine, Saint Louis University, St Louis, MO63104, USA
| | - Peng Cao
- Department of Pharmacology, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, China.
| | - Shizhong Zheng
- Department of Pharmacology, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
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19
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Bai N, Xia F, Wang W, Lei Y, Bo J, Li X. CDK12 promotes papillary thyroid cancer progression through regulating the c-myc/β-catenin pathway. J Cancer 2020; 11:4308-4315. [PMID: 32489449 PMCID: PMC7255385 DOI: 10.7150/jca.42849] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 03/29/2020] [Indexed: 12/14/2022] Open
Abstract
Background: CDK12 is a potential therapeutic target in papillary thyroid cancer that regulates the c-myc/β-catenin pathway. Objective: We aimed to explore the specific mechanism of CDK12 in papillary thyroid cancer and provide a new target of cancer therapy. Methods: RT-qPCR was used to determine the CDK12 mRNA expression level. An IHC assay was performed to detect the tissue expression of CDK12. Then, we downregulated CDK12 expression in the thyroid cancer cell lines TPC-1-shCDK12 and KAT-5-shCDK12. CCK8 assays, colony formation assays, and animal xenograft models were used to evaluate the effect of CDK12 on tumorigenesis. Transwell assays and in vivo metastasis models were used to observe whether CDK12 can promote cancer metastasis. Western blotting further confirmed the mechanism of CDK12 in papillary thyroid cancer through the c-myc/β-catenin pathway. Results: Upregulated CDK12 expression in papillary thyroid cancer promoted papillary thyroid cancer carcinogenesis in vivo, and in vitro CDK12 strengthened papillary thyroid cancer (PTC) cell migration and tumor metastasis. CDK12 promoted tumor progression by regulating c-myc/β-catenin pathway activation. Conclusions: CDK12 affects the c-myc/β-catenin pathway to stimulate papillary thyroid cancer proliferation and metastasis. Inhibiting CDK12 might be a new method in papillary thyroid cancer therapy.
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Affiliation(s)
- Ning Bai
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Fada Xia
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Wenlong Wang
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Yao Lei
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Jiang Bo
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Xinying Li
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, China
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20
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Niu W, Luo Y, Zhou Y, Li M, Wu C, Duan Y, Wang H, Fan S, Li Z, Xiong W, Li X, Li G, Ren C, Li H, Zhou M. BRD7 suppresses invasion and metastasis in breast cancer by negatively regulating YB1-induced epithelial-mesenchymal transition. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2020; 39:30. [PMID: 32028981 PMCID: PMC7006413 DOI: 10.1186/s13046-019-1493-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 11/26/2019] [Indexed: 01/02/2023]
Abstract
Background BRD7 is a tumor suppressor known to inhibit cell proliferation and cell cycle progression and initiate apoptosis in breast cancer. However, the function and underlying molecular events of BRD7 in tumor invasion and metastasis in breast cancer are not fully understood. Methods BRD7 expression was assessed in two stable cell lines MDA231 and MCF7 with BRD7 overexpression and one stable cell line MDA231 with BRD7 interference using qRT-PCR and western blotting. CCK8 assay was used to examine the proliferation ability of MDA231 and MCF7 cells. Scratch wound healing assay was used to evaluate cell migration in MDA231 and MCF7 cells. Both Matrigel and three-dimensional invasion assays were performed to investigate the cell invasion ability after BRD7 overexpression or silencing or YB1 restoration in MDA231 and MCF7 cells. The potential interacting proteins of BRD7 were screened using co-immunoprecipitation combined with mass spectrometry and verified by co-immunoprecipitation in HEK293T cells. Additionally, we confirmed the specific binding region between BRD7 and YB1 in HEK293T cells by constructing a series of deletion mutants of BRD7 and YB1 respectively. Finally, xenograft and metastatic mouse models using MDA231 cells were established to confirm the effect of BRD7 on tumor growth and metastasis. Results Here, the results of a series of assays in vitro indicated that BRD7 has the ability to inhibit the mobility, migration and invasion of breast cancer cells. In addition, YB1 was identified as a novel interacting protein of BRD7, and BRD7 was found to associate with the C-terminus of YB1 via its N-terminus. BRD7 decreases the expression of YB1 through negatively regulating YB1 phosphorylation at Ser102, thereby promoting its proteasomal degradation. Furthermore, gene set enrichment analysis revealed that epithelial-mesenchymal transition (EMT) is the common change occurring with altered expression of either BRD7 or YB1 and that BRD7 represses mesenchymal genes and activates epithelial genes. Moreover, restoring the expression of YB1 antagonized the inhibitory effect of BRD7 on tumorigenicity, EMT, invasiveness and metastasis through a series of in vitro and in vivo experiments. Additionally, BRD7 expression was negatively correlated with the level of YB1 in breast cancer patients. The combination of low BRD7 and high YB1 expression was significantly associated with poor prognosis, distant metastasis and advanced TNM stage. Conclusions Collectively, these findings uncover that BRD7 blocks tumor growth, migration and metastasis by negatively regulating YB1-induced EMT, providing new insights into the mechanism by which BRD7 contributes to the progression and metastasis of breast cancer.
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Affiliation(s)
- Weihong Niu
- The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan, 410013, People's Republic of China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, People's Republic of China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, Hunan, 410078, People's Republic of China
| | - Yanwei Luo
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, People's Republic of China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, Hunan, 410078, People's Republic of China
| | - Yao Zhou
- The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan, 410013, People's Republic of China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, People's Republic of China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, Hunan, 410078, People's Republic of China
| | - Mengna Li
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, People's Republic of China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, Hunan, 410078, People's Republic of China
| | - Chunchun Wu
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, People's Republic of China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, Hunan, 410078, People's Republic of China
| | - Yumei Duan
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, People's Republic of China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, Hunan, 410078, People's Republic of China
| | - Heran Wang
- The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan, 410013, People's Republic of China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, People's Republic of China
| | - Songqing Fan
- The Second Xiang-Ya Hospital, Central South University, Changsha, Hunan, 410011, People's Republic of China
| | - Zheng Li
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, People's Republic of China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, Hunan, 410078, People's Republic of China.,High Resolution Mass Spectrometry Laboratory of Advanced Research Center, Central South University, Changsha, Hunan, 410013, People's Republic of China
| | - Wei Xiong
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, People's Republic of China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, Hunan, 410078, People's Republic of China
| | - Xiaoling Li
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, People's Republic of China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, Hunan, 410078, People's Republic of China
| | - Guiyuan Li
- The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan, 410013, People's Republic of China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, People's Republic of China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, Hunan, 410078, People's Republic of China
| | - Caiping Ren
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, People's Republic of China. .,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, Hunan, 410078, People's Republic of China.
| | - Hui Li
- The Second Xiang-Ya Hospital, Central South University, Changsha, Hunan, 410011, People's Republic of China.
| | - Ming Zhou
- The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan, 410013, People's Republic of China. .,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, People's Republic of China. .,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, Hunan, 410078, People's Republic of China.
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21
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Hu K, Wu W, Li Y, Lin L, Chen D, Yan H, Xiao X, Chen H, Chen Z, Zhang Y, Xu S, Guo Y, Koeffler HP, Song E, Yin D. Poly(ADP-ribosyl)ation of BRD7 by PARP1 confers resistance to DNA-damaging chemotherapeutic agents. EMBO Rep 2019; 20:embr.201846166. [PMID: 30940648 DOI: 10.15252/embr.201846166] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 01/25/2019] [Accepted: 03/01/2019] [Indexed: 01/05/2023] Open
Abstract
The bromodomain-containing protein 7 (BRD7) is a tumour suppressor protein with critical roles in cell cycle transition and transcriptional regulation. Whether BRD7 is regulated by post-translational modifications remains poorly understood. Here, we find that chemotherapy-induced DNA damage leads to the rapid degradation of BRD7 in various cancer cell lines. PARP-1 binds and poly(ADP)ribosylates BRD7, which enhances its ubiquitination and degradation through the PAR-binding E3 ubiquitin ligase RNF146. Moreover, the PARP1 inhibitor Olaparib significantly enhances the sensitivity of BRD7-positive cancer cells to chemotherapeutic drugs, while it has little effect on cells with low BRD7 expression. Taken together, our findings show that PARP1 induces the degradation of BRD7 resulting in cancer cell resistance to DNA-damaging agents. BRD7 might thus serve as potential biomarker in clinical trial for the prediction of synergistic effects between chemotherapeutic drugs and PARP inhibitors.
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Affiliation(s)
- Kaishun Hu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Wenjing Wu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Department of Breast Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yu Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Lehang Lin
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Dong Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Department of Interventional Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Haiyan Yan
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xing Xiao
- Department of Dermatology and Venerology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Hengxing Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Zhen Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yin Zhang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Shuangbing Xu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yabin Guo
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - H Phillip Koeffler
- Cancer Science Institute of Singapore, National University of Singapore, Singapore City, Singapore.,Division of Hematology/Oncology, Cedars-Sinai Medical Center, University of California Los Angeles School of Medicine, Los Angeles, CA, USA
| | - Erwei Song
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China .,Department of Breast Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Dong Yin
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
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22
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Wang Y, An Y, Ma Y, Guo J. F-box/WD-40 repeat-containing protein 7: A potential target in the progression and treatment of gastrointestinal malignancy. Oncol Lett 2019; 17:3625-3634. [PMID: 30881487 PMCID: PMC6403509 DOI: 10.3892/ol.2019.10036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 01/21/2019] [Indexed: 12/21/2022] Open
Abstract
Cancer is a principal cause of human morbidity and mortality, with gastrointestinal malignancies, in particular, resulting in a marked number of tumor-associated mortalities. The progression of gastrointestinal malignancy is regulated by a variety of aberrantly expressed proteins, a number of which facilitate tumor progression, whereas, others function as tumor suppressors. The detection of such proteins not only contributes to the early diagnosis of cancer, they may additionally serve as potential therapeutic targets. In normal tissues, numerous proteins encoded by proto-oncoproteins are degraded by ubiquitylation enzymes, consisting of F-box/WD-40 repeat-containing protein 7 (Fbw7) and other proteins, thus avoiding tumorigenesis and maintaining homeostasis. In tumor tissues, the downregulation of Fbw7, caused by various factors, leads to disorders in ubiquitinase synthesis, which may induce tumor progression and chemoresistance, particularly in gastrointestinal malignancy. Therefore, an in-depth study of the regulatory mechanisms involved in disorders of Fbw7 expression and the role of Fbw7 in chemoresistance of gastrointestinal tumors may suggest improvements for early diagnostic screening and targeted therapy.
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Affiliation(s)
- Yizhi Wang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, P.R. China
| | - Yang An
- Department of Anesthesia, First Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Yi Ma
- Department of Thoracic Surgery, First Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Junchao Guo
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, P.R. China
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23
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Wu C, Li M, Meng H, Liu Y, Niu W, Zhou Y, Zhao R, Duan Y, Zeng Z, Li X, Li G, Xiong W, Zhou M. Analysis of status and countermeasures of cancer incidence and mortality in China. SCIENCE CHINA-LIFE SCIENCES 2019; 62:640-647. [PMID: 30900169 DOI: 10.1007/s11427-018-9461-5] [Citation(s) in RCA: 167] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 12/10/2018] [Indexed: 12/13/2022]
Abstract
Cancer is the leading cause of human deaths in the world and produces serious economic burdens. On September 12, 2018, the academic journal A Cancer Journal for Clinicians published an article about the latest statistics of cancers worldwide, which provided a status report on the global burden of 36 cancers in 185 countries worldwide. Cancer has also become a serious public health problem in China and caused more and more attention of the government and people in recent years. This review analyzes the incidence, mortality and prevalent trend of cancers in China, discusses the reasons behind this status, and reviews the potential countermeasures for cancer prevention and control in China.
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Affiliation(s)
- Chunchun Wu
- Key Laboratory of Carcinogenesis of Ministry of Health of China, Xiangya Hospital, Central South University, Changsha, 410078, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education of China, Cancer Research Institute and School of Basic Medicine Science, Central South University, Changsha, 410078, China
| | - Mengna Li
- Key Laboratory of Carcinogenesis of Ministry of Health of China, Xiangya Hospital, Central South University, Changsha, 410078, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education of China, Cancer Research Institute and School of Basic Medicine Science, Central South University, Changsha, 410078, China
| | - Hanbing Meng
- Key Laboratory of Carcinogenesis of Ministry of Health of China, Xiangya Hospital, Central South University, Changsha, 410078, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education of China, Cancer Research Institute and School of Basic Medicine Science, Central South University, Changsha, 410078, China
| | - Yukun Liu
- Key Laboratory of Carcinogenesis of Ministry of Health of China, Xiangya Hospital, Central South University, Changsha, 410078, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education of China, Cancer Research Institute and School of Basic Medicine Science, Central South University, Changsha, 410078, China
| | - Weihong Niu
- Key Laboratory of Carcinogenesis of Ministry of Health of China, Xiangya Hospital, Central South University, Changsha, 410078, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education of China, Cancer Research Institute and School of Basic Medicine Science, Central South University, Changsha, 410078, China
| | - Yao Zhou
- Key Laboratory of Carcinogenesis of Ministry of Health of China, Xiangya Hospital, Central South University, Changsha, 410078, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education of China, Cancer Research Institute and School of Basic Medicine Science, Central South University, Changsha, 410078, China
| | - Ran Zhao
- Key Laboratory of Carcinogenesis of Ministry of Health of China, Xiangya Hospital, Central South University, Changsha, 410078, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education of China, Cancer Research Institute and School of Basic Medicine Science, Central South University, Changsha, 410078, China
| | - Yumei Duan
- Key Laboratory of Carcinogenesis of Ministry of Health of China, Xiangya Hospital, Central South University, Changsha, 410078, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education of China, Cancer Research Institute and School of Basic Medicine Science, Central South University, Changsha, 410078, China
| | - Zhaoyang Zeng
- Key Laboratory of Carcinogenesis of Ministry of Health of China, Xiangya Hospital, Central South University, Changsha, 410078, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education of China, Cancer Research Institute and School of Basic Medicine Science, Central South University, Changsha, 410078, China
| | - Xiaoling Li
- Key Laboratory of Carcinogenesis of Ministry of Health of China, Xiangya Hospital, Central South University, Changsha, 410078, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education of China, Cancer Research Institute and School of Basic Medicine Science, Central South University, Changsha, 410078, China
| | - Guiyuan Li
- Key Laboratory of Carcinogenesis of Ministry of Health of China, Xiangya Hospital, Central South University, Changsha, 410078, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education of China, Cancer Research Institute and School of Basic Medicine Science, Central South University, Changsha, 410078, China
| | - Wei Xiong
- Key Laboratory of Carcinogenesis of Ministry of Health of China, Xiangya Hospital, Central South University, Changsha, 410078, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education of China, Cancer Research Institute and School of Basic Medicine Science, Central South University, Changsha, 410078, China
| | - Ming Zhou
- Key Laboratory of Carcinogenesis of Ministry of Health of China, Xiangya Hospital, Central South University, Changsha, 410078, China. .,Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education of China, Cancer Research Institute and School of Basic Medicine Science, Central South University, Changsha, 410078, China.
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24
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Li M, Liu Y, Wei Y, Wu C, Meng H, Niu W, Zhou Y, Wang H, Wen Q, Fan S, Li Z, Li X, Zhou J, Cao K, Xiong W, Zeng Z, Li X, Qiu Y, Li G, Zhou M. Zinc-finger protein YY1 suppresses tumor growth of human nasopharyngeal carcinoma by inactivating c-Myc-mediated microRNA-141 transcription. J Biol Chem 2019; 294:6172-6187. [PMID: 30718276 DOI: 10.1074/jbc.ra118.006281] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 01/18/2019] [Indexed: 12/12/2022] Open
Abstract
Yin Yang 1 (YY1) is a zinc-finger protein that plays critical roles in various biological processes by interacting with DNA and numerous protein partners. YY1 has been reported to play dual biological functions as either an oncogene or tumor suppressor in the development and progression of multiple cancers, but its role in human nasopharyngeal carcinoma (NPC) has not yet been revealed. In this study, we found that YY1 overexpression significantly inhibits cell proliferation and cell-cycle progression from G1 to S and promotes apoptosis in NPC cells. Moreover, we identified YY1 as a component of the c-Myc complex and observed that ectopic expression of YY1 inhibits c-Myc transcriptional activity, as well as the promoter activity and expression of the c-Myc target gene microRNA-141 (miR-141). Furthermore, restoring miR-141 expression could at least partially reverse the inhibitory effect of YY1 on cell proliferation and tumor growth and on the expression of some critical c-Myc targets, such as PTEN/AKT pathway components both in vitro and in vivo We also found that YY1 expression is reduced in NPC tissues, negatively correlates with miR-141 expression and clinical stages in NPC patients, and positively correlates with survival prognosis. Our results reveal a previously unappreciated mechanism in which the YY1/c-Myc/miR-141 axis plays a critical role in NPC progression and may provide some potential and valuable targets for the diagnosis and treatment of NPC.
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Affiliation(s)
- Mengna Li
- From the Hunan Cancer Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan 410013; the Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, the Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, and Cancer Research Institute, Central South University, Changsha, Hunan 410078
| | - Yukun Liu
- From the Hunan Cancer Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan 410013; the Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, the Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, and Cancer Research Institute, Central South University, Changsha, Hunan 410078
| | - Yanmei Wei
- From the Hunan Cancer Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan 410013; the Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, the Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, and Cancer Research Institute, Central South University, Changsha, Hunan 410078
| | - Chunchun Wu
- From the Hunan Cancer Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan 410013; the Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, the Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, and Cancer Research Institute, Central South University, Changsha, Hunan 410078
| | - Hanbing Meng
- From the Hunan Cancer Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan 410013; the Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, the Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, and Cancer Research Institute, Central South University, Changsha, Hunan 410078
| | - Weihong Niu
- From the Hunan Cancer Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan 410013; the Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, the Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, and Cancer Research Institute, Central South University, Changsha, Hunan 410078
| | - Yao Zhou
- From the Hunan Cancer Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan 410013; the Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, the Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, and Cancer Research Institute, Central South University, Changsha, Hunan 410078
| | - Heran Wang
- From the Hunan Cancer Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan 410013
| | - Qiuyuan Wen
- the Second XiangYa Hospital, Central South University, Changsha, Hunan 410011
| | - Songqing Fan
- the Second XiangYa Hospital, Central South University, Changsha, Hunan 410011
| | - Zheng Li
- the Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, the Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, and Cancer Research Institute, Central South University, Changsha, Hunan 410078; the High Resolution Mass Spectrometry Laboratory of Advanced Research Center, Central South University, Changsha, Hunan 410013
| | - Xiayu Li
- the Third XiangYa Hospital, Central South University, Changsha, Hunan 410008, China
| | - Jianda Zhou
- the Third XiangYa Hospital, Central South University, Changsha, Hunan 410008, China
| | - Ke Cao
- the Third XiangYa Hospital, Central South University, Changsha, Hunan 410008, China
| | - Wei Xiong
- the Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, the Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, and Cancer Research Institute, Central South University, Changsha, Hunan 410078
| | - Zhaoyang Zeng
- the Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, the Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, and Cancer Research Institute, Central South University, Changsha, Hunan 410078
| | - Xiaoling Li
- the Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, the Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, and Cancer Research Institute, Central South University, Changsha, Hunan 410078
| | - Yuanzheng Qiu
- the Department of Otolaryngology Head and Neck Surgery, the Xiangya Hospital, Central South University, Changsha, Hunan 410008
| | - Guiyuan Li
- From the Hunan Cancer Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan 410013; the Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, the Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, and Cancer Research Institute, Central South University, Changsha, Hunan 410078
| | - Ming Zhou
- From the Hunan Cancer Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan 410013; the Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, the Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, and Cancer Research Institute, Central South University, Changsha, Hunan 410078.
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25
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Zhou Y, Niu W, Luo Y, Li H, Xie Y, Wang H, Liu Y, Fan S, Li Z, Xiong W, Li X, Ren C, Tan M, Li G, Zhou M. p53/Lactate dehydrogenase A axis negatively regulates aerobic glycolysis and tumor progression in breast cancer expressing wild-type p53. Cancer Sci 2019; 110:939-949. [PMID: 30618169 PMCID: PMC6398928 DOI: 10.1111/cas.13928] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 12/21/2018] [Accepted: 12/27/2018] [Indexed: 12/17/2022] Open
Abstract
Tumor suppressor p53 is a master regulator of apoptosis and plays key roles in cell cycle checkpoints. p53 responds to metabolic changes and alters metabolism through several mechanisms in cancer. Lactate dehydrogenase A (LDHA), a key enzyme in glycolysis, is highly expressed in a variety of tumors and catalyzes pyruvate to lactate. In the present study, we first analyzed the association and clinical significance of p53 and LDHA in breast cancer expressing wild‐type p53 (wt‐p53) and found that LDHA mRNA levels are negatively correlated with wt‐p53 but not with mutation p53 mRNA levels, and low p53 and high LDHA expression are significantly associated with poor overall survival rates. Furthermore, p53 negatively regulates LDHA expression by directly binding its promoter region. Moreover, a series of LDHA gain‐of‐function and rescore experiments were carried out in breast cancer MCF7 cells expressing endogenous wt‐p53, showing that ectopic expression of p53 decreases aerobic glycolysis, cell proliferation, migration, invasion and tumor formation of breast cancer cells and that restoration of the expression of LDHA in p53‐overexpressing cells could abolish the suppressive effect of p53 on aerobic glycolysis and other malignant phenotypes. In conclusion, our findings showed that repression of LDHA induced by wt‐p53 blocks tumor growth and invasion through downregulation of aerobic glycolysis in breast cancer, providing new insights into the mechanism by which p53 contributes to the development and progression of breast cancer.
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Affiliation(s)
- Yao Zhou
- The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, China
| | - Weihong Niu
- The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, China
| | - Yanwei Luo
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, China
| | - Hui Li
- The Second Xiang-Ya Hospital, Central South University, Changsha, China
| | - Yong Xie
- The Second Xiang-Ya Hospital, Central South University, Changsha, China
| | - Heran Wang
- The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Yukun Liu
- The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Songqing Fan
- The Second Xiang-Ya Hospital, Central South University, Changsha, China
| | - Zheng Li
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, China.,High Resolution Mass Spectrometry Laboratory of Advanced Research Center, Central South University, Changsha, China
| | - Wei Xiong
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoling Li
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, China
| | - Caiping Ren
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Ming Tan
- Mitchell Cancer Institute, University of South Alabama, Mobile, USA
| | - Guiyuan Li
- The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, China
| | - Ming Zhou
- The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, China
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26
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Ma J, Niu W, Wang X, Zhou Y, Wang H, Liu F, Liu Y, Guo J, Xiong W, Zeng Z, Fan S, Li X, Nie X, Li G, Gui R, Luo Y, Zhou M. Bromodomain‑containing protein 7 sensitizes breast cancer cells to paclitaxel by activating Bcl2‑antagonist/killer protein. Oncol Rep 2018; 41:1487-1496. [PMID: 30592293 PMCID: PMC6365691 DOI: 10.3892/or.2018.6951] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 10/24/2018] [Indexed: 12/20/2022] Open
Abstract
Our previous study demonstrated that bromodomain‑containing protein 7 (BRD7) inhibits cell proliferation and tumor growth, restoring the expression of B‑cell lymphoma 2 antagonist/killer (Bak) sensitized breast cancer cells to paclitaxel. However, the association between BRD7 and paclitaxel sensitization, as well as BRD7 and Bak in breast cancer remains unknown. In the present study, immunochemical staining was performed to measure the expression of BRD7 and Bak in breast cancer tissues. Cell Counting Kit‑8 assay, flow cytometry and tumor xenograft procedures were performed to evaluate the biological role of BRD7 and Bak in breast cancer cells. Western blotting, reverse transcription‑quantitative polymerase chain reaction, chromatin immunoprecipitation and luciferase reporter assays were also performed. BRD7 was positively correlated with Bak levels in breast cancer tissues, and the survival rate of patients with low Bak and BRD7 expression was significantly lower than that of patients with high Bak and BRD7 expression. In addition, BRD7 activated Bak promoter activity and induced Bak expression in an indirect manner. Furthermore, ectopic expression of BRD7 inhibited cell proliferation, tumor growth and sensitized cancer cells to paclitaxel, while knockdown of Bak abolished BRD7‑mediated inhibitory effects on cell proliferation and paclitaxel sensitization in breast cancer cells whether in vitro and in vivo. The results demonstrated that BRD7 inhibits cell proliferation and sensitizes breast cancer cells to paclitaxel by activating Bak; they also provide promising targets for the diagnosis and treatment of breast cancer.
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Affiliation(s)
- Jinqi Ma
- The Key Laboratory of Carcinogenesis of The Chinese Ministry of Health and The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan 410078, P.R. China
| | - Weihong Niu
- Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan 410078, P.R. China
| | - Xinye Wang
- Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan 410078, P.R. China
| | - Yao Zhou
- Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan 410078, P.R. China
| | - Heran Wang
- Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan 410078, P.R. China
| | - Fengxia Liu
- Department of Blood Transfusion, The Third Xiang‑Ya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Yukun Liu
- Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan 410078, P.R. China
| | - Jie Guo
- National Institution of Drug Clinical Trial, Xiangya Hospital, Central South University, Changsha, Hunan 410078, P.R. China
| | - Wei Xiong
- Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan 410078, P.R. China
| | - Zhaoyang Zeng
- Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan 410078, P.R. China
| | - Songqing Fan
- Department of Pathology, The Second Xiang‑Ya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
| | - Xiaoling Li
- Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan 410078, P.R. China
| | - Xinmin Nie
- Department of Blood Transfusion, The Third Xiang‑Ya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Guiyuan Li
- Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan 410078, P.R. China
| | - Rong Gui
- Department of Blood Transfusion, The Third Xiang‑Ya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Yanwei Luo
- The Key Laboratory of Carcinogenesis of The Chinese Ministry of Health and The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan 410078, P.R. China
| | - Ming Zhou
- The Key Laboratory of Carcinogenesis of The Chinese Ministry of Health and The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan 410078, P.R. China
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27
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Zhao CX, Zhu W, Ba ZQ, Xu HJ, Liu WD, Zhu B, Wang L, Song YJ, Yuan S, Ren CP. The regulatory network of nasopharyngeal carcinoma metastasis with a focus on EBV, lncRNAs and miRNAs. Am J Cancer Res 2018; 8:2185-2209. [PMID: 30555738 PMCID: PMC6291648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 10/16/2018] [Indexed: 06/09/2023] Open
Abstract
Metastasis of nasopharyngeal carcinoma (NPC) remains a main cause of death for NPC patients even though great advances have been made in therapeutic approaches. An in-depth study into the molecular mechanisms of NPC metastasis will help us combat NPC. Epstein-Barr virus (EBV) infection is an evident feature of nonkeratinizing NPC and is strongly associated with tumor metastasis. Recently, long noncoding RNAs (lncRNAs) and microRNAs (miRNAs) have become a hot topic of research due to their epigenetic regulatory roles in NPC metastasis. The EBV products, lncRNAs and miRNAs can target each other and share several common signaling pathways, which form an interconnected, complex molecular regulatory network. In this review, we discuss the features of this regulatory network and summarize the molecular mechanisms of NPC metastasis, focusing on EBV, lncRNAs and miRNAs with updated knowledge.
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Affiliation(s)
- Chen-Xuan Zhao
- The Key Laboratory of Carcinogenesis of The Chinese Ministry of Health and The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, P. R. China
- Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South UniversityChangsha 410078, Hunan, P. R. China
| | - Wei Zhu
- The Key Laboratory of Carcinogenesis of The Chinese Ministry of Health and The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, P. R. China
- Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South UniversityChangsha 410078, Hunan, P. R. China
| | - Zheng-Qing Ba
- The Key Laboratory of Carcinogenesis of The Chinese Ministry of Health and The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, P. R. China
- Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South UniversityChangsha 410078, Hunan, P. R. China
| | - Hong-Juan Xu
- The Key Laboratory of Carcinogenesis of The Chinese Ministry of Health and The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, P. R. China
- Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South UniversityChangsha 410078, Hunan, P. R. China
| | - Wei-Dong Liu
- The Key Laboratory of Carcinogenesis of The Chinese Ministry of Health and The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, P. R. China
- Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South UniversityChangsha 410078, Hunan, P. R. China
| | - Bin Zhu
- The Key Laboratory of Carcinogenesis of The Chinese Ministry of Health and The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, P. R. China
- Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South UniversityChangsha 410078, Hunan, P. R. China
| | - Lei Wang
- The Key Laboratory of Carcinogenesis of The Chinese Ministry of Health and The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, P. R. China
- Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South UniversityChangsha 410078, Hunan, P. R. China
| | - Yu-Jia Song
- The Key Laboratory of Carcinogenesis of The Chinese Ministry of Health and The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, P. R. China
- Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South UniversityChangsha 410078, Hunan, P. R. China
| | - Shuai Yuan
- The Key Laboratory of Carcinogenesis of The Chinese Ministry of Health and The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, P. R. China
- Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South UniversityChangsha 410078, Hunan, P. R. China
| | - Cai-Ping Ren
- The Key Laboratory of Carcinogenesis of The Chinese Ministry of Health and The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, P. R. China
- Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South UniversityChangsha 410078, Hunan, P. R. China
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Xu Y, Wang J, Wang J. Long noncoding RNA XIST promotes proliferation and invasion by targeting miR-141 in papillary thyroid carcinoma. Onco Targets Ther 2018; 11:5035-5043. [PMID: 30174441 PMCID: PMC6110635 DOI: 10.2147/ott.s170439] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background The long noncoding RNA X-inactive specific transcript (XIST) was reported to play vital roles in tumor progression. In the present study, we determined the regulatory function of XIST in papillary thyroid carcinoma (PTC). Materials and methods XIST expression was determined in PTC tissues and cell lines by quantitative real-time polymerase chain reaction (PCR) (qRT-PCR). Cellular proliferation, migration, and invasion were measured using the Cell Counting Kit-8 (CCK-8) assay, wound-healing assay, and transwell invasion assay, respectively. Western blotting was used to determine protein expression. The downstream target miRNAs for XIST were identified by luciferase reporter assay and qRT-PCR. Results Relative expression of XIST was upregulated in PTC tissues and cell lines. High XIST expression was positively correlated with TNM stage and lymph node metastasis. Function assay demonstrated that knockdown of XIST significantly decreased cell proliferation, migration, and invasion in PTC cells. Moreover, we showed that the effects of XIST on PTC cell progression were mediated by miR-141. Conclusion Our results demonstrated that XIST functioned as an oncogene in PTC progression by regulating miR-141, suggesting that XIST might be a promising therapeutic target for PTC treatment.
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Affiliation(s)
- Yawei Xu
- College of Bioengineering, Jilin Agricultural Science and Technology University, Jilin City 132101, People's Republic of China,
| | - Junrong Wang
- Department of Gynaecology and Obstetrics, China-Japan Union Hospital of Jinlin University, Changchun 130033, People's Republic of China
| | - Junling Wang
- College of Bioengineering, Jilin Agricultural Science and Technology University, Jilin City 132101, People's Republic of China,
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