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Grześ M, Jaiswar A, Grochowski M, Wojtyś W, Kaźmierczak W, Olesiński T, Lenarcik M, Nowak-Niezgoda M, Kołos M, Canarutto G, Piazza S, Wiśniewski JR, Walerych D. A common druggable signature of oncogenic c-Myc, mutant KRAS and mutant p53 reveals functional redundancy and competition among oncogenes in cancer. Cell Death Dis 2024; 15:638. [PMID: 39217152 PMCID: PMC11365971 DOI: 10.1038/s41419-024-06965-3] [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: 02/07/2024] [Revised: 07/31/2024] [Accepted: 07/31/2024] [Indexed: 09/04/2024]
Abstract
The major driver oncogenes MYC, mutant KRAS, and mutant TP53 often coexist and cooperate to promote human neoplasia, which results in anticancer therapeutic opportunities within their downstream molecular programs. However, little research has been conducted on whether redundancy and competition among oncogenes affect their programs and ability to drive neoplasia. By CRISPR‒Cas9-mediated downregulation we evaluated the downstream proteomics and transcriptomics programs of MYC, mutant KRAS, and mutant TP53 in a panel of cell lines with either one or three of these oncogenes activated, in cancers of the lung, colon and pancreas. Using RNAi screening of the commonly activated molecular programs, we found a signature of three proteins - RUVBL1, HSPA9, and XPO1, which could be efficiently targeted by novel drug combinations in the studied cancer types. Interestingly, the signature was controlled by the oncoproteins in a redundant or competitive manner rather than by cooperation. Each oncoprotein individually upregulated the target genes, while upon oncogene co-expression each target was controlled preferably by a dominant oncoprotein which reduced the influence of the others. This interplay was mediated by redundant routes of target gene activation - as in the case of mutant KRAS signaling to c-Jun/GLI2 transcription factors bypassing c-Myc activation, and by competition - as in the case of mutant p53 and c-Myc competing for binding to target promoters. The global transcriptomics data from the cell lines and patient samples indicate that the redundancy and competition of oncogenic programs are broad phenomena, that may constitute even a majority of the genes dependent on oncoproteins, as shown for mutant p53 in colon and lung cancer cell lines. Nevertheless, we demonstrated that redundant oncogene programs harbor targets for efficient anticancer drug combinations, bypassing the limitations for direct oncoprotein inhibition.
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Affiliation(s)
- Maria Grześ
- Mossakowski Medical Research Institute PAS, Warsaw, Poland
| | | | | | | | | | - Tomasz Olesiński
- Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Małgorzata Lenarcik
- Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | | | - Małgorzata Kołos
- National Medical Institute of the Ministry of the Interior and Administration, Warsaw, Poland
| | - Giulia Canarutto
- International Center for Genetic Engineering and Biotechnology, Trieste, Italy
| | - Silvano Piazza
- International Center for Genetic Engineering and Biotechnology, Trieste, Italy
| | | | - Dawid Walerych
- Mossakowski Medical Research Institute PAS, Warsaw, Poland.
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2
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Wang Z, Li Y, Yang J, Sun Y, He Y, Wang Y, Liang Y, Chen X, Chen T, Han D, Zhang N, Chen B, Zhao W, Wang L, Luo D, Yang Q. CircCFL1 Promotes TNBC Stemness and Immunoescape via Deacetylation-Mediated c-Myc Deubiquitylation to Facilitate Mutant TP53 Transcription. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2404628. [PMID: 38981022 DOI: 10.1002/advs.202404628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 06/24/2024] [Indexed: 07/11/2024]
Abstract
Triple-negative breast cancer (TNBC) is the most malignant subtype of breast cancer. TP53, which has a mutation rate of ≈70%-80% in TNBC patients, plays oncogenic roles when mutated. However, whether circRNAs can exert their effects on TNBC through regulating mutant TP53 has not been well evaluated. In this study, circCFL1, which is highly expressed in TNBC cells and tissues and has prognostic potential is identified. Functionally, circCFL1 promoted the proliferation, metastasis and stemness of TNBC cells. Mechanistically, circCFL1 acted as a scaffold to enhance the interaction between HDAC1 and c-Myc, further promoting the stability of c-Myc via deacetylation-mediated inhibition of K48-linked ubiquitylation. Stably expressed c-Myc further enhanced the expression of mutp53 in TNBC cells with TP53 mutations by directly binding to the promoter of TP53, which promoted the stemness of TNBC cells via activation of the p-AKT/WIP/YAP/TAZ pathway. Moreover, circCFL1 can facilitate the immune escape of TNBC cells by promoting the expression of PD-L1 and suppressing the antitumor immunity of CD8+ T cells. In conclusion, the results revealed that circCFL1 plays an oncogenic role by promoting the HDAC1/c-Myc/mutp53 axis, which can serve as a potential diagnostic biomarker and therapeutic target for TNBC patients with TP53 mutations.
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Affiliation(s)
- Zekun Wang
- Department of Breast Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
| | - Yaming Li
- Department of Breast Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
| | - Jingwen Yang
- Department of Breast Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
| | - Yuhan Sun
- Department of Breast Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
| | - Yinqiao He
- Department of Breast Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
| | - Yuping Wang
- School of Basic Medicine, Jining Medical College, Jining, Shandong, 272067, P. R. China
| | - Yiran Liang
- Department of Breast Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
| | - Xi Chen
- Department of Breast Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
| | - Tong Chen
- Department of Breast Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
| | - Dianwen Han
- Department of Breast Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
| | - Ning Zhang
- Department of Breast Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
| | - Bing Chen
- Pathology Tissue Bank, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
| | - Wenjing Zhao
- Pathology Tissue Bank, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
| | - Lijuan Wang
- Pathology Tissue Bank, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
| | - Dan Luo
- Pathology Tissue Bank, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
| | - Qifeng Yang
- Department of Breast Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
- Pathology Tissue Bank, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
- Research Institute of Breast Cancer, Shandong University, Jinan, Shandong, 250012, P. R. China
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Benitez DA, Cumplido-Laso G, Olivera-Gómez M, Del Valle-Del Pino N, Díaz-Pizarro A, Mulero-Navarro S, Román-García A, Carvajal-Gonzalez JM. p53 Genetics and Biology in Lung Carcinomas: Insights, Implications and Clinical Applications. Biomedicines 2024; 12:1453. [PMID: 39062026 PMCID: PMC11274425 DOI: 10.3390/biomedicines12071453] [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: 05/16/2024] [Revised: 06/20/2024] [Accepted: 06/26/2024] [Indexed: 07/28/2024] Open
Abstract
The TP53 gene is renowned as a tumor suppressor, playing a pivotal role in overseeing the cell cycle, apoptosis, and maintaining genomic stability. Dysregulation of p53 often contributes to the initiation and progression of various cancers, including lung cancer (LC) subtypes. The review explores the intricate relationship between p53 and its role in the development and progression of LC. p53, a crucial tumor suppressor protein, exists in various isoforms, and understanding their distinct functions in LC is essential for advancing our knowledge of this deadly disease. This review aims to provide a comprehensive literature overview of p53, its relevance to LC, and potential clinical applications.
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Affiliation(s)
- Dixan A. Benitez
- Departamento de Bioquímica, Biología Molecular y Genética, Facultad de Ciencias, Universidad de Extremadura, 06006 Badajoz, Spain; (G.C.-L.); (M.O.-G.); (N.D.V.-D.P.); (A.D.-P.); (S.M.-N.); (A.R.-G.)
| | | | | | | | | | | | | | - Jose Maria Carvajal-Gonzalez
- Departamento de Bioquímica, Biología Molecular y Genética, Facultad de Ciencias, Universidad de Extremadura, 06006 Badajoz, Spain; (G.C.-L.); (M.O.-G.); (N.D.V.-D.P.); (A.D.-P.); (S.M.-N.); (A.R.-G.)
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4
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Di Crosta M, Ragone FC, Benedetti R, D’Orazi G, Gilardini Montani MS, Cirone M. SAHA/5-AZA Enhances Acetylation and Degradation of mutp53, Upregulates p21 and Downregulates c-Myc and BRCA-1 in Pancreatic Cancer Cells. Int J Mol Sci 2024; 25:7020. [PMID: 39000128 PMCID: PMC11241381 DOI: 10.3390/ijms25137020] [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: 05/27/2024] [Revised: 06/21/2024] [Accepted: 06/25/2024] [Indexed: 07/16/2024] Open
Abstract
Epigenetic changes are common in cancer and include aberrant DNA methylation and histone modifications, including both acetylation or methylation. DNA methylation in the promoter regions and histone deacetylation are usually accompanied by gene silencing, and may lead to the suppression of tumor suppressors in cancer cells. An interaction between epigenetic pathways has been reported that could be exploited to more efficiently target aggressive cancer cells, particularly those against which current treatments usually fail, such as pancreatic cancer. In this study, we explored the possibility to combine the DNA demethylating agent 5-AZA with HDAC inhibitor SAHA to treat pancreatic cancer cell lines, focusing on the acetylation of mutp53 and the consequences on its stability, as well as on the interaction of this protein with c-myc and BRCA-1, key molecules in cancer survival. The results obtained suggest that SAHA/5-AZA combination was more effective than single treatments to promote the degradation of mutp53, to upregulate p21 and downregulate c-Myc and BRCA-1, thus increasing DNA damage and cytotoxicity in pancreatic cancer cells.
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Affiliation(s)
- Michele Di Crosta
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (M.D.C.); (F.C.R.); (R.B.)
| | - Francesca Chiara Ragone
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (M.D.C.); (F.C.R.); (R.B.)
| | - Rossella Benedetti
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (M.D.C.); (F.C.R.); (R.B.)
| | - Gabriella D’Orazi
- Department of Neurosciences, Imaging and Clinical Sciences, University “G. D’Annunzio” Chieti, 66100 Pescara, Italy;
- Department of Research and Technological Innovation, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | | | - Mara Cirone
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (M.D.C.); (F.C.R.); (R.B.)
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Lu KP, Zhou XZ. Pin1-catalyzed conformational regulation after phosphorylation: A distinct checkpoint in cell signaling and drug discovery. Sci Signal 2024; 17:eadi8743. [PMID: 38889227 PMCID: PMC11409840 DOI: 10.1126/scisignal.adi8743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 05/30/2024] [Indexed: 06/20/2024]
Abstract
Protein phosphorylation is one of the most common mechanisms regulating cellular signaling pathways, and many kinases and phosphatases are proven drug targets. Upon phosphorylation, protein functions can be further regulated by the distinct isomerase Pin1 through cis-trans isomerization. Numerous protein targets and many important roles have now been elucidated for Pin1. However, no tools are available to detect or target cis and trans conformation events in cells. The development of Pin1 inhibitors and stereo- and phospho-specific antibodies has revealed that cis and trans conformations have distinct and often opposing cellular functions. Aberrant conformational changes due to the dysregulation of Pin1 can drive pathogenesis but can be effectively targeted in age-related diseases, including cancers and neurodegenerative disorders. Here, we review advances in understanding the roles of Pin1 signaling in health and disease and highlight conformational regulation as a distinct signal transduction checkpoint in disease development and treatment.
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Affiliation(s)
- Kun Ping Lu
- Departments of Biochemistry and Oncology, Schulich School of Medicine & Dentistry, Western University, London, ON N6G 2V4, Canada
- Robarts Research Institute, Schulich School of Medicine & Dentistry, Western University, London, ON N6G 2V4, Canada
| | - Xiao Zhen Zhou
- Departments of Biochemistry and Oncology, Schulich School of Medicine & Dentistry, Western University, London, ON N6G 2V4, Canada
- Department of Pathology and Laboratory Medicine, Schulich School of Medicine & Dentistry, Western University, London, ON N6G 2V4, Canada
- Lawson Health Research Institute, Schulich School of Medicine & Dentistry, Western University, London, ON N6G 2V4, Canada
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6
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Bordagaray MJ, Pellegrini E, Garrido M, Hernández-Ríos P, Villalobos T, Fernández A, Hernández M. Elevated serum hepatic transaminases in apical periodontitis individuals. Int Endod J 2024. [PMID: 38864596 DOI: 10.1111/iej.14109] [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: 11/21/2023] [Revised: 04/22/2024] [Accepted: 06/03/2024] [Indexed: 06/13/2024]
Abstract
AIM Apical periodontitis (AP) is the chronic inflammation of the periradicular tissues in response to root canal infection. Whilst AP has been linked with systemic inflammation and noncommunicable diseases, its potential association with nonalcoholic fatty liver disease (NAFLD) is unknown. We aimed to evaluate the serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels as surrogate markers of hepatic injury, and the systemic inflammatory burden in otherwise healthy individuals with and without AP diagnosis. METHODOLOGY Cross-sectional study. Individuals with AP (n = 30) and healthy controls (n = 29) were recruited. The number, mean diameter (mm) and periapical index of the apical lesions of endodontic origin (ALEO) were assessed. ALT and AST levels (pg/mL) were measured through enzyme-linked immunosorbent assays. The serum levels of TNF-α, IL-4, IL-9, IL-10, IL-17A and IL-22 were evaluated by Multiplex assay. Inferential analysis was performed using t-test or Mann-Whitney tests according to data distribution and linear regression models. Data were analysed with StataV16 (p < .05). RESULTS ALT and AST levels were significantly higher in individuals with AP compared to controls (p < .05). Serum inflammatory biomarkers showed no significant differences between the study groups. Bivariate and multivariate analyses confirmed that AP diagnosis was independently associated with ALT and AST elevations (p < .05). Additionally, the number of ALEO positively influenced AST levels (p = .002). IL-22 on the other hand, was associated with reduced ALT levels (p = .043). CONCLUSION AP is associated with higher serum hepatic transaminases ALT and AST, potentially contributing to NAFLD physiopathology in young adults.
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Affiliation(s)
- María José Bordagaray
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
- Department of Conservative Dentistry, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
| | - Elizabeth Pellegrini
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
| | - Mauricio Garrido
- Department of Conservative Dentistry, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
| | - Patricia Hernández-Ríos
- Department of Conservative Dentistry, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
| | - Thomas Villalobos
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
| | | | - Marcela Hernández
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
- Department of Pathology and Oral Medicine, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
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7
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Yedla P, Bhamidipati P, Syed R, Amanchy R. Working title: Molecular involvement of p53-MDM2 interactome in gastrointestinal cancers. Cell Biochem Funct 2024; 42:e4075. [PMID: 38924101 DOI: 10.1002/cbf.4075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 05/30/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024]
Abstract
The interaction between murine double minute 2 (MDM2) and p53, marked by transcriptional induction and feedback inhibition, orchestrates a functional loop dictating cellular fate. The functional loop comprising p53-MDM2 axis is made up of an interactome consisting of approximately 81 proteins, which are spatio-temporally regulated and involved in DNA repair mechanisms. Biochemical and genetic alterations of the interactome result in dysregulation of the p53-mdm2 axis that leads to gastrointestinal (GI) cancers. A large subset of interactome is well known and it consists of proteins that either stabilize p53 or MDM2 and proteins that target the p53-MDM2 complex for ubiquitin-mediated destruction. Upstream signaling events brought about by growth factors and chemical messengers invoke a wide variety of posttranslational modifications in p53-MDM2 axis. Biochemical changes in the transactivation domain of p53 impact the energy landscape, induce conformational switching, alter interaction potential and could change solubility of p53 to redefine its co-localization, translocation and activity. A diverse set of chemical compounds mimic physiological effectors and simulate biochemical modifications of the p53-MDM2 interactome. p53-MDM2 interactome plays a crucial role in DNA damage and repair process. Genetic aberrations in the interactome, have resulted in cancers of GI tract (pancreas, liver, colorectal, gastric, biliary, and esophageal). We present in this article a review of the overall changes in the p53-MDM2 interactors and the effectors that form an epicenter for the development of next-generation molecules for understanding and targeting GI cancers.
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Affiliation(s)
- Poornachandra Yedla
- Division of Applied Biology, CSIR-IICT (Indian Institute of Chemical Technology), Ministry of Science and Technology (GOI), Hyderabad, Telangana, India
- Department of Pharmacogenomics, Institute of Translational Research, Asian Healthcare Foundation, Hyderabad, Telangana, India
| | - Pranav Bhamidipati
- Division of Applied Biology, CSIR-IICT (Indian Institute of Chemical Technology), Ministry of Science and Technology (GOI), Hyderabad, Telangana, India
- Department of Life Sciences, Imperial College London, London, UK
| | - Riyaz Syed
- Division of Applied Biology, CSIR-IICT (Indian Institute of Chemical Technology), Ministry of Science and Technology (GOI), Hyderabad, Telangana, India
| | - Ramars Amanchy
- Division of Applied Biology, CSIR-IICT (Indian Institute of Chemical Technology), Ministry of Science and Technology (GOI), Hyderabad, Telangana, India
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8
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Wang D, Shi W, Qiu C. Construction of a TP53 mutation-associated ceRNA network as prognostic biomarkers in hepatocellular carcinoma. Heliyon 2024; 10:e30066. [PMID: 38737272 PMCID: PMC11088256 DOI: 10.1016/j.heliyon.2024.e30066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 04/15/2024] [Accepted: 04/18/2024] [Indexed: 05/14/2024] Open
Abstract
Background Hepatocellular carcinoma (HCC) continues to endanger human health worldwide. Regulatory networks of competing endogenous RNAs (ceRNAs) play important roles in HCC. TP53 is the second most often altered gene in HCC and has a significant role in regulating target genes such as miRNAs and lncRNAs. Methods Data from patients with TP53 mutation were collected through the cBioPortal database and differential analysis was performed to screen RNAs related to TP53 mutation. The lncRNA-miRNA-mRNA relationship was predicted by the miRcode, miRDB, and TargetScan databases. The ceRNA networks were screened and visualized by Cytoscape. Core ceRNA networks were generated by differential analysis, coexpression analysis, prognostic analysis and subcellular localization. Finally, methylation, mutation, PPI, GSEA, immunity and drug sensitivity analyses of MEX3A were performed to determine the role of MEX3A in HCC. Results We identified 1508 DEmRNAs, 85 DEmiRNAs and 931 DElncRNAs and obtained a ceRNA network including 28 lncRNAs, 4 miRNAs and 31 mRNAs. Twenty hub DERNAs in the TP53-altered-related ceRNA network were screened out by Cytoscape and the core ceRNA network (LINC00491/TCL6-hsa-miR-139-5p-MEX3A) was obtained by multiple analyses. In addition, we discovered that the methylation level of MEX3A was decreased and the mutation frequency was raised in HCC. Furthermore, elevated MEX3A expression was associated with alterations in the HCC immunological microenvironment. Conclusion We successfully constructed a reciprocal ceRNA network, which could provide new ideas for exploring HCC mechanisms and therapeutic approaches.
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Affiliation(s)
- Dong Wang
- Department of General Surgery, Changzhou Hospital of Traditional Chinese Medicine, Changzhou 213000, China
| | - Wenxiang Shi
- Department of Pediatric Cardiology, Xinhua Hospital, Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - Chenjie Qiu
- Department of General Surgery, Changzhou Hospital of Traditional Chinese Medicine, Changzhou 213000, China
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9
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Lu H, Tan Z, Ko H, Naji P, Zhu R, Wang J, Huang S, Zhang YW, Zeng S. Tripartite motif-containing protein 26 promotes colorectal cancer growth by inactivating p53. RESEARCH SQUARE 2024:rs.3.rs-3782833. [PMID: 38260302 PMCID: PMC10802717 DOI: 10.21203/rs.3.rs-3782833/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Tripartite motif-containing protein 26 (TRIM26) is an E3 ubiquitin ligase that exhibits divergent roles in various cancer types (oncogenic and anti-oncogenic). This study investigates the interaction of TRIM26 with the tumor suppressor protein p53 in colorectal cancer (CRC) cells by performing a comprehensive set of biochemical, cell-based assays, and xenograft experiments. As a result, we found that overexpression of TRIM26 significantly enhances CRC cell proliferation and colony formation, while knockdown of TRIM26 suppresses these processes. Xenograft experiments further validated the tumor-promoting role of TRIM26 in CRC. Supporting this is that TRIM26 is highly expressed in human CRC tissues as revealed by our analysis of the TCGA database. Biochemically, TRIM26 directly bound to the C-terminus of p53 and facilitated its ubiquitination, resulting in proteolytic degradation and attenuated p53 activity independently of MDM2. Also, TRIM26 increased the MDM2-mediated ubiquitination of p53 by binding to MDM2's C-terminus. This study uncovers the oncogenic potential of TRIM26 in CRC by inhibiting p53 function. Through its ubiquitin ligase activity, TRIM26 destabilizes p53, consequently promoting CRC cell proliferation and tumor growth. These findings shed light on the complex involvement of TRIM26 in cancer and identify this ubiquitin ligase as a potential therapeutic target for future development of CRC treatment.
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10
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Ziegler DV, Parashar K, Fajas L. Beyond cell cycle regulation: The pleiotropic function of CDK4 in cancer. Semin Cancer Biol 2024; 98:51-63. [PMID: 38135020 DOI: 10.1016/j.semcancer.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 11/02/2023] [Accepted: 12/17/2023] [Indexed: 12/24/2023]
Abstract
CDK4, along with its regulatory subunit, cyclin D, drives the transition from G1 to S phase, during which DNA replication and metabolic activation occur. In this canonical pathway, CDK4 is essentially a transcriptional regulator that acts through phosphorylation of retinoblastoma protein (RB) and subsequent activation of the transcription factor E2F, ultimately triggering the expression of genes involved in DNA synthesis and cell cycle progression to S phase. In this review, we focus on the newly reported functions of CDK4, which go beyond direct regulation of the cell cycle. In particular, we describe the extranuclear roles of CDK4, including its roles in the regulation of metabolism, cell fate, cell dynamics and the tumor microenvironment. We describe direct phosphorylation targets of CDK4 and decipher how CDK4 influences these physiological processes in the context of cancer.
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Affiliation(s)
- Dorian V Ziegler
- Center for Integrative Genomics, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Kanishka Parashar
- Center for Integrative Genomics, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Lluis Fajas
- Center for Integrative Genomics, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland; INSERM, Montpellier, France.
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11
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Dibra D, Gagea M, Qi Y, Chau GP, Su X, Lozano G. p53R245W Mutation Fuels Cancer Initiation and Metastases in NASH-driven Liver Tumorigenesis. CANCER RESEARCH COMMUNICATIONS 2023; 3:2640-2652. [PMID: 38047594 PMCID: PMC10761659 DOI: 10.1158/2767-9764.crc-23-0218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 09/19/2023] [Accepted: 11/28/2023] [Indexed: 12/05/2023]
Abstract
Obesity is a significant global health concern. Non-alcoholic fatty liver disease and non-alcoholic steatohepatitis (NASH) are common risk factors for hepatocellular carcinoma (HCC) and are closely associated with metabolic comorbidities, including obesity and diabetes. The TP53 tumor suppressor is the most frequently mutated gene in liver cancers, with half of these alterations being missense mutations. These mutations produce highly abundant proteins in cancer cells which have both inhibitory effects on wildtype (WT) p53, and gain-of-function (GOF) activities that contribute to tumor progression. A Western diet increases p53 activity in the liver. To elucidate the functional consequences of Trp53 mutations in a NASH-driven liver tumorigenesis model, we generated somatic mouse models with Trp53 deletion or the missense hotspot mutant p53R245W only in hepatocytes and placed mice on a high-fat, choline-deficient diet. p53R245W in the presence of diet increased fatty liver, compensatory proliferation in the liver parenchyma, and enriched genes of tumor-promoting pathways such as KRAS signaling, MYC, and epithelial-mesenchymal transition when compared with controls in the premalignant liver. Moreover, p53R245W suppressed transcriptional activity of WT p53 in the liver in vivo under metabolic challenges, and shortened survival and doubling of HCC incidence as compared with control heterozygous mice. Complete loss of Trp53 also significantly accelerated liver tumor incidence and lowered time-to-tumor development compared with WT controls. p53R245W GOF properties increased carcinoma initiation, fueled mixed hepatocholangial carcinoma incidence, and tripled metastatic disease. Collectively, our in vivo studies indicate that p53R245W has stronger tumor promoting activities than Trp53 loss in the context of NASH. SIGNIFICANCE Using somatic NASH-driven mouse models with p53 deletion or mutant p53R245W only in hepatocytes, we discovered that p53R245W increased carcinoma initiation, fueled hepatocholangial carcinoma incidence, and tripled metastases.
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Affiliation(s)
- Denada Dibra
- Department of Genetics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Mihai Gagea
- Department of Veterinary Medicine & Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yuan Qi
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Gilda P. Chau
- Department of Genetics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Xiaoping Su
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Guillermina Lozano
- Department of Genetics, The University of Texas MD Anderson Cancer Center, Houston, Texas
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12
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Liu F, Liao Z, Zhang Z. MYC in liver cancer: mechanisms and targeted therapy opportunities. Oncogene 2023; 42:3303-3318. [PMID: 37833558 DOI: 10.1038/s41388-023-02861-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/28/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023]
Abstract
MYC, a major oncogenic transcription factor, regulates target genes involved in various pathways such as cell proliferation, metabolism and immune evasion, playing a critical role in the tumor initiation and development in multiple types of cancer. In liver cancer, MYC and its signaling pathways undergo significant changes, exerting a profound impact on liver cancer progression, including tumor proliferation, metastasis, dedifferentiation, metabolism, immune microenvironment, and resistance to comprehensive therapies. This makes MYC an appealing target, despite it being previously considered an undruggable protein. In this review, we discuss the role and mechanisms of MYC in liver physiology, chronic liver diseases, hepatocarcinogenesis, and liver cancer progression, providing a theoretical basis for targeting MYC as an ideal therapeutic target for liver cancer. We also summarize and prospect the strategies for targeting MYC, including direct and indirect approaches to abolish the oncogenic function of MYC in liver cancer.
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Affiliation(s)
- Furong Liu
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei, 430030, China
- Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China
| | - Zhibin Liao
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei, 430030, China
- Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China
| | - Zhanguo Zhang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China.
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei, 430030, China.
- Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China.
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13
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Tombari C, Zannini A, Bertolio R, Pedretti S, Audano M, Triboli L, Cancila V, Vacca D, Caputo M, Donzelli S, Segatto I, Vodret S, Piazza S, Rustighi A, Mantovani F, Belletti B, Baldassarre G, Blandino G, Tripodo C, Bicciato S, Mitro N, Del Sal G. Mutant p53 sustains serine-glycine synthesis and essential amino acids intake promoting breast cancer growth. Nat Commun 2023; 14:6777. [PMID: 37880212 PMCID: PMC10600207 DOI: 10.1038/s41467-023-42458-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 10/11/2023] [Indexed: 10/27/2023] Open
Abstract
Reprogramming of amino acid metabolism, sustained by oncogenic signaling, is crucial for cancer cell survival under nutrient limitation. Here we discovered that missense mutant p53 oncoproteins stimulate de novo serine/glycine synthesis and essential amino acids intake, promoting breast cancer growth. Mechanistically, mutant p53, unlike the wild-type counterpart, induces the expression of serine-synthesis-pathway enzymes and L-type amino acid transporter 1 (LAT1)/CD98 heavy chain heterodimer. This effect is exacerbated by amino acid shortage, representing a mutant p53-dependent metabolic adaptive response. When cells suffer amino acids scarcity, mutant p53 protein is stabilized and induces metabolic alterations and an amino acid transcriptional program that sustain cancer cell proliferation. In patient-derived tumor organoids, pharmacological targeting of either serine-synthesis-pathway and LAT1-mediated transport synergizes with amino acid shortage in blunting mutant p53-dependent growth. These findings reveal vulnerabilities potentially exploitable for tackling breast tumors bearing missense TP53 mutations.
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Affiliation(s)
- Camilla Tombari
- Department of Life Sciences, University of Trieste, 34127, Trieste, Italy
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Area Science Park-Padriciano, 34149, Trieste, Italy
| | - Alessandro Zannini
- Department of Life Sciences, University of Trieste, 34127, Trieste, Italy
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Area Science Park-Padriciano, 34149, Trieste, Italy
| | - Rebecca Bertolio
- Department of Life Sciences, University of Trieste, 34127, Trieste, Italy
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Area Science Park-Padriciano, 34149, Trieste, Italy
| | - Silvia Pedretti
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, University of Milan, Milan, Italy
| | - Matteo Audano
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, University of Milan, Milan, Italy
| | - Luca Triboli
- Department of Life Sciences, University of Trieste, 34127, Trieste, Italy
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Area Science Park-Padriciano, 34149, Trieste, Italy
| | - Valeria Cancila
- Tumor Immunology Unit, Department of Health Science, Human Pathology Section, School of Medicine, University of Palermo, 90133, Palermo, Italy
| | - Davide Vacca
- Tumor Immunology Unit, Department of Health Science, Human Pathology Section, School of Medicine, University of Palermo, 90133, Palermo, Italy
| | - Manuel Caputo
- Department of Life Sciences, University of Trieste, 34127, Trieste, Italy
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Area Science Park-Padriciano, 34149, Trieste, Italy
| | - Sara Donzelli
- Translational Oncology Research Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Ilenia Segatto
- Unit of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, National Cancer Institute, 33081, Aviano, Italy
| | - Simone Vodret
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Area Science Park-Padriciano, 34149, Trieste, Italy
| | - Silvano Piazza
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Area Science Park-Padriciano, 34149, Trieste, Italy
| | - Alessandra Rustighi
- Department of Life Sciences, University of Trieste, 34127, Trieste, Italy
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Area Science Park-Padriciano, 34149, Trieste, Italy
| | - Fiamma Mantovani
- Department of Life Sciences, University of Trieste, 34127, Trieste, Italy
| | - Barbara Belletti
- Unit of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, National Cancer Institute, 33081, Aviano, Italy
| | - Gustavo Baldassarre
- Unit of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, National Cancer Institute, 33081, Aviano, Italy
| | - Giovanni Blandino
- Translational Oncology Research Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Claudio Tripodo
- Tumor Immunology Unit, Department of Health Science, Human Pathology Section, School of Medicine, University of Palermo, 90133, Palermo, Italy
- IFOM ETS, the AIRC Institute of Molecular Oncology, Milan, Italy
| | - Silvio Bicciato
- Center for Genome Research, University of Modena and Reggio Emilia, 41125, Modena, Italy
| | - Nico Mitro
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, University of Milan, Milan, Italy
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Giannino Del Sal
- Department of Life Sciences, University of Trieste, 34127, Trieste, Italy.
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Area Science Park-Padriciano, 34149, Trieste, Italy.
- IFOM ETS, the AIRC Institute of Molecular Oncology, Milan, Italy.
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14
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Guo M, Xiong Y. Sex-biased genome-editing effects of CRISPR-Cas9 across cancer cells dependent on p53 status. iScience 2023; 26:107529. [PMID: 37636042 PMCID: PMC10448110 DOI: 10.1016/j.isci.2023.107529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 06/12/2023] [Accepted: 07/28/2023] [Indexed: 08/29/2023] Open
Abstract
The CRISPR-Cas9 system has emerged as the dominant technology for gene editing and clinical applications. One major concern is its off-target effect after the introduction of exogenous CRISPR-Cas9 into cells. Several previous studies have investigated either Cas9 alone or CRISPR-Cas9 interactions with p53. Here, we reanalyzed previously reported data of p53-associated Cas9 activities and observed large significant sex differences between p53-wildtype and p53-mutant cells. To expand the impact of this finding, we further examined all protein-coding genes for sex-specific dependencies in a large-scale CRISPR-Cas9 screening dataset from the DepMap project. We highlighted the p53-dependent sex bias of gene knockouts (including MYC, PIK3CA, KAT2B, KDM4E, SUV39H1, FANCB, TLR7, and APC2) across cancer types and potential mechanisms (mediated by transcriptional factors, including SOX9, FOXO4, LEF1, and RYBP) underlying this phenomenon. Our results suggest that the p53-dependent sex bias may need to be considered in future clinical applications of CRISPR-Cas9, especially in cancer.
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Affiliation(s)
- Mengbiao Guo
- Key Laboratory of Gene Engineering of the Ministry of Education, Institute of Healthy Aging Research, School of Life Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Yuanyan Xiong
- Key Laboratory of Gene Engineering of the Ministry of Education, Institute of Healthy Aging Research, School of Life Sciences, Sun Yat-sen University, Guangzhou 510006, China
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15
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Lam YK, Yu J, Huang H, Ding X, Wong AM, Leung HH, Chan AW, Ng KK, Xu M, Wang X, Wong N. TP53 R249S mutation in hepatic organoids captures the predisposing cancer risk. Hepatology 2023; 78:727-740. [PMID: 36221953 PMCID: PMC10086078 DOI: 10.1002/hep.32802] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 09/16/2022] [Accepted: 09/21/2022] [Indexed: 12/08/2022]
Abstract
BACKGROUND AND AIMS Major genomic drivers of hepatocellular carcinoma (HCC) are nowadays well recognized, although models to establish their roles in human HCC initiation remain scarce. Here, we used human liver organoids in experimental systems to mimic the early stages of human liver carcinogenesis from the genetic lesions of TP53 loss and L3 loop R249S mutation. In addition, chromatin immunoprecipitation sequencing (ChIP-seq) of HCC cell lines shed important functional insights into the initiation of HCC consequential to the loss of tumor-suppressive function from TP53 deficiency and gain-of-function activities from mutant p53. APPROACH AND RESULTS Human liver organoids were generated from surgical nontumor liver tissues. CRISPR knockout of TP53 in liver organoids consistently demonstrated tumor-like morphological changes, increased in stemness and unrestricted in vitro propagation. To recapitulate TP53 status in human HCC, we overexpressed mutant R249S in TP53 knockout organoids. A spontaneous increase in tumorigenic potentials and bona fide HCC histology in xenotransplantations were observed. ChIP-seq analysis of HCC cell lines underscored gain-of-function properties from L3 loop p53 mutants in chromatin remodeling and overcoming extrinsic stress. More importantly, direct transcriptional activation of PSMF1 by mutant R249S could increase organoid resistance to endoplasmic reticulum stress, which was readily abrogated by PSMF1 knockdown in rescue experiments. In a patient cohort of primary HCC tumors and genome-edited liver organoids, quantitative polymerase chain reaction corroborated ChIP-seq findings and verified preferential genes modulated by L3 mutants, especially those enriched by R249S. CONCLUSIONS We showed differential tumorigenic effects from TP53 loss and L3 mutations, which together confer normal hepatocytes with early clonal advantages and prosurvival functions.
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Affiliation(s)
- Yin Kau Lam
- Department of Surgery, Sir Y.K. Pao Centre for Cancer, The Chinese University of Hong Kong, Hong Kong, China
| | - Jianqing Yu
- Department of Surgery, Sir Y.K. Pao Centre for Cancer, The Chinese University of Hong Kong, Hong Kong, China
| | - Hao Huang
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, China
| | - Xiaofan Ding
- Department of Surgery, Sir Y.K. Pao Centre for Cancer, The Chinese University of Hong Kong, Hong Kong, China
| | - Alissa M. Wong
- Department of Surgery, Sir Y.K. Pao Centre for Cancer, The Chinese University of Hong Kong, Hong Kong, China
| | - Howard H. Leung
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong, Hong Kong, China
| | - Anthony W. Chan
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong, Hong Kong, China
| | - Kelvin K. Ng
- Department of Surgery, Sir Y.K. Pao Centre for Cancer, The Chinese University of Hong Kong, Hong Kong, China
| | - Mingjing Xu
- Department of Surgery, Sir Y.K. Pao Centre for Cancer, The Chinese University of Hong Kong, Hong Kong, China
| | - Xin Wang
- Department of Surgery, Sir Y.K. Pao Centre for Cancer, The Chinese University of Hong Kong, Hong Kong, China
| | - Nathalie Wong
- Department of Surgery, Sir Y.K. Pao Centre for Cancer, The Chinese University of Hong Kong, Hong Kong, China
- State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
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16
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Tang M, Crown J, Duffy MJ. Degradation of MYC by the mutant p53 reactivator drug, COTI-2 in breast cancer cells. Invest New Drugs 2023; 41:541-550. [PMID: 37233863 PMCID: PMC10447602 DOI: 10.1007/s10637-023-01368-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 04/27/2023] [Indexed: 05/27/2023]
Abstract
TP53 (p53) and MYC are amongst the most frequently altered genes in cancer. Both are thus attractive targets for new anticancer therapies. Historically, however, both genes have proved challenging to target and currently there is no approved therapy against either. The aim of this study was to investigate the effect of the mutant p53 reactivating drug, COTI-2 on MYC. Total MYC, pSer62 MYC and pThr58 MYC were detected using Western blotting. Proteasome-mediated degradation was determined using the proteasome, inhibitor MG-132, while MYC half-life was measured using pulse chase experiments in the presence of cycloheximide. Cell proliferation was assessed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method. Treatment of 5 mutant p53 breast cancer cell lines with COTI-2 resulted in dose-dependent MYC degradation. Addition of the proteasome inhibitor, MG132, rescued the degradation, suggesting that this proteolytic system was at least partly responsible for the inactivation of MYC. Using cycloheximide in pulse chase experiments, COTI-2 was found to reduce the half-life of MYC in 2 different mutant p53 breast cancer cell lines, i.e., from 34.8 to 18.6 min in MDA-MB-232 cells and from 29.6 to 20.3 min in MDA-MB-468 cells. Co-treatment with COTI-2 and the MYC inhibitor, MYCi975 resulted in synergistic growth inhibition in all 4 mutant p53 cell lines investigated. The dual ability of COTI-2 to reactivate mutant p53 and degrade MYC should enable this compound to have broad application as an anticancer drug.
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Affiliation(s)
- Minhong Tang
- UCD School of Medicine, Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
| | - John Crown
- Department of Medical Oncology, St Vincent's University Hospital, Dublin, Ireland
| | - Michael J Duffy
- UCD School of Medicine, Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland.
- Clinical Research Centre, St Vincent's University Hospital, Elm Park, Dublin, D04 T6F4, Ireland.
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17
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Qin S, Kitty I, Hao Y, Zhao F, Kim W. Maintaining Genome Integrity: Protein Kinases and Phosphatases Orchestrate the Balancing Act of DNA Double-Strand Breaks Repair in Cancer. Int J Mol Sci 2023; 24:10212. [PMID: 37373360 DOI: 10.3390/ijms241210212] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
DNA double-strand breaks (DSBs) are the most lethal DNA damages which lead to severe genome instability. Phosphorylation is one of the most important protein post-translation modifications involved in DSBs repair regulation. Kinases and phosphatases play coordinating roles in DSB repair by phosphorylating and dephosphorylating various proteins. Recent research has shed light on the importance of maintaining a balance between kinase and phosphatase activities in DSB repair. The interplay between kinases and phosphatases plays an important role in regulating DNA-repair processes, and alterations in their activity can lead to genomic instability and disease. Therefore, study on the function of kinases and phosphatases in DSBs repair is essential for understanding their roles in cancer development and therapeutics. In this review, we summarize the current knowledge of kinases and phosphatases in DSBs repair regulation and highlight the advancements in the development of cancer therapies targeting kinases or phosphatases in DSBs repair pathways. In conclusion, understanding the balance of kinase and phosphatase activities in DSBs repair provides opportunities for the development of novel cancer therapeutics.
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Affiliation(s)
- Sisi Qin
- Department of Pathology, University of Chicago, Chicago, IL 60637, USA
| | - Ichiwa Kitty
- Department of Integrated Biomedical Science, Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan 31151, Chungcheongnam-do, Republic of Korea
| | - Yalan Hao
- Analytical Instrumentation Center, Hunan University, Changsha 410082, China
| | - Fei Zhao
- College of Biology, Hunan University, Changsha 410082, China
| | - Wootae Kim
- Department of Integrated Biomedical Science, Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan 31151, Chungcheongnam-do, Republic of Korea
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18
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Liu J, Zhang C, Xu D, Zhang T, Chang CY, Wang J, Liu J, Zhang L, Haffty BG, Zong WX, Hu W, Feng Z. The ubiquitin ligase TRIM21 regulates mutant p53 accumulation and gain of function in cancer. J Clin Invest 2023; 133:164354. [PMID: 36749630 PMCID: PMC10014102 DOI: 10.1172/jci164354] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 02/02/2023] [Indexed: 02/08/2023] Open
Abstract
The tumor suppressor TP53 is the most frequently mutated gene in human cancers. Mutant p53 (mutp53) proteins often accumulate to very high levels in human cancers to promote cancer progression through the gain-of-function (GOF) mechanism. Currently, the mechanism underlying mutp53 accumulation and GOF is incompletely understood. Here, we identified TRIM21 as a critical E3 ubiquitin ligase of mutp53 by screening for specific mutp53-interacting proteins. TRIM21 directly interacted with mutp53 but not WT p53, resulting in ubiquitination and degradation of mutp53 to suppress mutp53 GOF in tumorigenesis. TRIM21 deficiency in cancer cells promoted mutp53 accumulation and GOF in tumorigenesis. Compared with p53R172H knockin mice, which displayed mutp53 accumulation specifically in tumors but not normal tissues, TRIM21 deletion in p53R172H knockin mice resulted in mutp53 accumulation in normal tissues, an earlier tumor onset, and a shortened life span of mice. Furthermore, TRIM21 was frequently downregulated in some human cancers, including colorectal and breast cancers, and low TRIM21 expression was associated with poor prognosis in patients with cancers carrying mutp53. Our results revealed a critical mechanism underlying mutp53 accumulation in cancers and also uncovered an important tumor-suppressive function of TRIM21 and its mechanism in cancers carrying mutp53.
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Affiliation(s)
- Juan Liu
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, USA
| | - Cen Zhang
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, USA
| | - Dandan Xu
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, USA
| | - Tianliang Zhang
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, USA
| | - Chun-Yuan Chang
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, USA
| | - Jianming Wang
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, USA
| | - Jie Liu
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, USA
| | - Lanjing Zhang
- Department of Biological Sciences, Rutgers, The State University of New Jersey, Newark, New Jersey, USA
- Department of Pathology, Princeton Medical Center, Plainsboro, New Jersey, USA
| | - Bruce G. Haffty
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, USA
| | - Wei-Xing Zong
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, USA
| | - Wenwei Hu
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, USA
| | - Zhaohui Feng
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, USA
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19
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Liu S, Liu T, Jiang J, Guo H, Yang R. p53 mutation and deletion contribute to tumor immune evasion. Front Genet 2023; 14:1088455. [PMID: 36891151 PMCID: PMC9986462 DOI: 10.3389/fgene.2023.1088455] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 01/11/2023] [Indexed: 02/22/2023] Open
Abstract
TP53 (or p53) is widely accepted to be a tumor suppressor. Upon various cellular stresses, p53 mediates cell cycle arrest and apoptosis to maintain genomic stability. p53 is also discovered to suppress tumor growth through regulating metabolism and ferroptosis. However, p53 is always lost or mutated in human and the loss or mutation of p53 is related to a high risk of tumors. Although the link between p53 and cancer has been well established, how the different p53 status of tumor cells help themselves evade immune response remains largely elusive. Understanding the molecular mechanisms of different status of p53 and tumor immune evasion can help optimize the currently used therapies. In this context, we discussed the how the antigen presentation and tumor antigen expression mode altered and described how the tumor cells shape a suppressive tumor immune microenvironment to facilitate its proliferation and metastasis.
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Affiliation(s)
- Siyang Liu
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Tianyao Liu
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jiaxuan Jiang
- Department of Endocrinology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Hongqian Guo
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Rong Yang
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
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20
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Solares MJ, Kelly DF. Complete Models of p53 Better Inform the Impact of Hotspot Mutations. Int J Mol Sci 2022; 23:ijms232315267. [PMID: 36499604 PMCID: PMC9740296 DOI: 10.3390/ijms232315267] [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: 11/04/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
Mutations in tumor suppressor genes often lead to cancerous phenotypes. Current treatments leverage signaling pathways that are often compromised by disease-derived deficiencies in tumor suppressors. P53 falls into this category as genetic mutations lead to physical changes in the protein that impact multiple cellular pathways. Here, we show the first complete structural models of mutated p53 to reveal how hotspot mutations physically deviate from the wild-type protein. We employed a recently determined structure for the p53 monomer to map seven frequent clinical mutations using computational modeling approaches. Results showed that missense mutations often changed the conformational structure of p53 in the DNA-binding site along with its electrostatic surface charges. We posit these changes may amplify the toxic effects of these hotspot mutations by destabilizing an important zinc ion coordination region in p53 to impede proper DNA interactions. These results highlight the imperative need for new studies on patient-derived proteins that may assist in redesigning structure-informed targeted therapies.
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Affiliation(s)
- Maria J. Solares
- Molecular, Cellular, and Integrative Biosciences Graduate Program, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA 16802, USA
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA 16802, USA
- Center for Structural Oncology, Pennsylvania State University, University Park, PA 16802, USA
| | - Deborah F. Kelly
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA 16802, USA
- Center for Structural Oncology, Pennsylvania State University, University Park, PA 16802, USA
- Correspondence:
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21
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Romeo MA, Gilardini Montani MS, Arena A, Benedetti R, D’Orazi G, Cirone M. c-Myc Sustains Pancreatic Cancer Cell Survival and mutp53 Stability through the Mevalonate Pathway. Biomedicines 2022; 10:biomedicines10102489. [PMID: 36289751 PMCID: PMC9599358 DOI: 10.3390/biomedicines10102489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 09/27/2022] [Accepted: 10/02/2022] [Indexed: 11/16/2022] Open
Abstract
It has been shown that wild-type (wt)p53 inhibits oncogene c-Myc while mutant (mut)p53 may transactivate it, with an opposite behavior that frequently occurs in the crosstalk of wt or mutp53 with molecules/pathways promoting carcinogenesis. Even if it has been reported that mutp53 sustains c-Myc, whether c-Myc could in turn influence mutp53 expression remains to be investigated. In this study, we found that pharmacological or genetic inhibition of c-Myc downregulated mutp53, impaired cell survival and increased DNA damage in pancreatic cancer cells. At the molecular level, we observed that c-Myc inhibition reduced the expression of mevalonate kinase (MVK), a molecule belonging to the mevalonate pathway that—according to previous findings—can control mutp53 stability, and thus contributes to cancer cell survival. In conclusion, this study unveils another criminal alliance between oncogenes, such as c-Myc and mutp53, that plays a key role in oncogenesis.
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Affiliation(s)
- Maria Anele Romeo
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | | | - Andrea Arena
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Rossella Benedetti
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Gabriella D’Orazi
- Department of Research, Advanced Diagnostics, and Technological Innovation, Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00128 Rome, Italy
- Department of Neurosciences, Imaging and Clinical Sciences, University G. D’Annunzio, Via dei Vestini 33, 66100 Chieti, Italy
| | - Mara Cirone
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
- Correspondence:
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Targeting prolyl isomerase Pin1 as a promising strategy to overcome resistance to cancer therapies. Pharmacol Res 2022; 184:106456. [PMID: 36116709 DOI: 10.1016/j.phrs.2022.106456] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 09/10/2022] [Accepted: 09/14/2022] [Indexed: 11/22/2022]
Abstract
The development of tumor therapeutic resistance is one of the important reasons for the failure of antitumor therapy. Starting with multiple targets and multiple signaling pathways is helpful in understanding the mechanism of tumor resistance. The overexpression of prolyl isomerase Pin1 is highly correlated with the malignancy of cancer, since Pin1 controls many oncogenes and tumor suppressors, as well as a variety of cancer-driving signaling pathways. Strikingly, numerous studies have shown that Pin1 is directly involved in therapeutic resistance. In this review, we mainly summarize the functions and mechanisms of Pin1 in therapeutic resistance of multifarious cancers, such as breast, liver, and pancreatic carcinomas. Furtherly, from the perspective of Pin1-driven cancer signaling pathways including Raf/MEK/ERK, PI3K/Akt, Wnt/β-catenin, NF-κB, as well as Pin1 inhibitors containing juglone, epigallocatechin-3-gallate (EGCG), all-trans retinoic acid (ATRA) and arsenic trioxide (ATO), it is better to demonstrate the important potential role and mechanism of Pin1 in resistance and sensitization to cancer therapies. It will provide new therapeutic approaches for clinical reversal and prevention of tumor resistance by employing synergistic administration of Pin1 inhibitors and chemotherapeutics, implementing combination therapy of Pin1-related cancer signaling pathway inhibitors and Pin1 inhibitors, and exploiting novel Pin1-specific inhibitors.
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p53: From Fundamental Biology to Clinical Applications in Cancer. BIOLOGY 2022; 11:biology11091325. [PMID: 36138802 PMCID: PMC9495382 DOI: 10.3390/biology11091325] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/04/2022] [Accepted: 09/06/2022] [Indexed: 11/18/2022]
Abstract
Simple Summary p53 tumour suppressor gene is the most altered in cancer. Several decades of research have established that it is of pivotal importance in prompting neoplastic phenomena, including cancer initiation and progression. However, it has crucial functions for cellular life. Knowledge and awareness about these multifaceted properties should be part of the cultural background of all scientists. In this review, we describe and discuss the multifaceted roles of p53, from its discovery to clinical applications in cancer therapy. Abstract p53 tumour suppressor gene is our major barrier against neoplastic transformation. It is involved in many cellular functions, including cell cycle arrest, senescence, DNA repair, apoptosis, autophagy, cell metabolism, ferroptosis, immune system regulation, generation of reactive oxygen species, mitochondrial function, global regulation of gene expression, miRNAs, etc. Its crucial importance is denounced by the high percentage of amino acid sequence identity between very different species (Homo sapiens, Drosophila melanogaster, Rattus norvegicus, Danio rerio, Canis lupus familiaris, Gekko japonicus). Many of its activities allowed life on Earth (e.g., repair from radiation-induced DNA damage) and directly contribute to its tumour suppressor function. In this review, we provide paramount information on p53, from its discovery, which is an interesting paradigm of science evolution, to potential clinical applications in anti-cancer treatment. The description of the fundamental biology of p53 is enriched by specific information on the structure and function of the protein as well by tumour/host evolutionistic perspectives of its role.
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Zhao S, An L, Yang X, Wei Z, Zhang H, Wang Y. Identification and validation of the role of c-Myc in head and neck squamous cell carcinoma. Front Oncol 2022; 12:820587. [PMID: 36119473 PMCID: PMC9470836 DOI: 10.3389/fonc.2022.820587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 08/10/2022] [Indexed: 12/09/2022] Open
Abstract
Background Many studies have shown that c-Myc plays a critical role in tumorigenesis. However, the molecular role of c-Myc in head and neck squamous cell carcinoma (HNSC) remains unclear. Methods Several biological databases, including UALCAN, TIMER2.0, TCGAportal, GEPIA, KM plotter, OncoLnc, LinkedOmics, GSCA, and TCIA, were used to analyze the molecular role of c-Myc in HNSC. The expression levels of c-Myc were validated by real-time PCR (RT–PCR) and Western blot in CAL-27 cells. Results The expression of c-Myc mRNA were significantly increased in HPV-negative HNSC tissues. The expression of c-Myc gene level was correlated with TP53 mutation status. HNSC also showed hypomethylated c-Myc compared with normal tissues. c-Myc was identified as an ominous prognostic factor for HNSC patients and correlated with immune infiltrating levels. Moreover, high c-Myc expression was associated with decreased expression of a series of immune checkpoints, resulting in a dampened immune response. c-Myc potentially mediated IL-17 signaling pathway and Th1 and Th2 cell differentiation. Inhibition of c-Myc expression increased apoptosis of CAL-27 cells. Conclusions These findings suggest a new mechanism of c-Myc in the prognosis of HNSC, implying the potential of c-Myc as a therapeutic target for HNSC patients.
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Affiliation(s)
- Sufeng Zhao
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
- *Correspondence: Sufeng Zhao, ; Xudong Yang,
| | - Li An
- Department of Geriatrics, Zhongda Hospital Southeast University, Nanjing, China
| | - Xudong Yang
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
- *Correspondence: Sufeng Zhao, ; Xudong Yang,
| | - Zheng Wei
- Department of Pediatric Dentistry, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - He Zhang
- Department of Periodontology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Yufeng Wang
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
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25
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Inactivation of tumor suppressor TAp63 by hepatitis B virus X protein in hepatocellular carcinoma. Chin Med J (Engl) 2022; 135:1728-1733. [PMID: 35950770 PMCID: PMC9509107 DOI: 10.1097/cm9.0000000000002283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND The hepatitis B virus X (HBx) protein plays a critical role in the initiation and progression of hepatitis B virus (HBV)-associated hepatocellular carcinoma (HCC). In the early stage of the disease, HBx facilitates tumor onset by inactivating the tumor suppressor p53. The p53-encoding gene, however, is frequently mutated or deleted as the cancer progresses to the late stage and, under such circumstance, the p53 homolog TAp63 can harness HCC growth by transactivating several important p53-target genes. METHODS To determine whether HBx regulates TAp63, we performed co-immunoprecipitation assay, real-time quantitative polymerase chain reaction, immunoblotting, and flow cytometry analysis in p53-null cancer cell lines, Hep3B and H1299. RESULTS HBx interacts with the transactivation domain of TAp63, as HBx was co-immunoprecipitated with TAp63 but not with ΔNp63. The interaction between HBx and TAp63 abolished transcriptional activity of TAp63, as evidenced by the reduction of the levels of its target genes p21 and PUMA , consequently leading to restricted apoptosis and augmented proliferation of HCC cells. CONCLUSION HBV induces progression of HCC that harbors defective p53 by inhibiting the tumor suppressor TAp63.
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26
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P63 and P73 Activation in Cancers with p53 Mutation. Biomedicines 2022; 10:biomedicines10071490. [PMID: 35884795 PMCID: PMC9313412 DOI: 10.3390/biomedicines10071490] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/17/2022] [Accepted: 06/21/2022] [Indexed: 12/27/2022] Open
Abstract
The members of the p53 family comprise p53, p63, and p73, and full-length isoforms of the p53 family have a tumor suppressor function. However, p53, but not p63 or p73, has a high mutation rate in cancers causing it to lose its tumor suppressor function. The top and second-most prevalent p53 mutations are missense and nonsense mutations, respectively. In this review, we discuss possible drug therapies for nonsense mutation and a missense mutation in p53. p63 and p73 activators may be able to replace mutant p53 and act as anti-cancer drugs. Herein, these p63 and p73 activators are summarized and how to improve these activator responses, particularly focusing on p53 gain-of-function mutants, is discussed.
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27
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Jiang Z, Cheng L, Wu Z, Zhou L, Wang H, Hong Q, Wu Q, Long Y, Huang Y, Xu G, Yao Y, Tang Z, Zhang Z, Yang L, Luo W, Yang J, Gong L, Liu P, Chen X, Cui S, Zhang Q, Li Y, Li P. Transforming primary human hepatocytes into hepatocellular carcinoma with genetically defined factors. EMBO Rep 2022; 23:e54275. [PMID: 35437924 PMCID: PMC9171684 DOI: 10.15252/embr.202154275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 04/02/2022] [Accepted: 04/07/2022] [Indexed: 12/11/2022] Open
Abstract
Our understanding of human hepatocellular carcinoma (HCC) development and progression has been hampered by the lack of in vivo models. We performed a genetic screen of 10 oncogenes and genetic mutations in Fah-ablated immunodeficient mice in which primary human hepatocytes (PHHs) are used to reconstitute a functional human liver. We identified that MYC, TP53R249S , and KRASG12D are highly expressed in induced HCC (iHCC) samples. The overexpression of MYC and TP53R249S transform PHHs into iHCC in situ, though the addition of KRASG12D significantly increases the tumorigenic efficiency. iHCC, which recapitulate the histological architecture and gene expression characteristics of clinical HCC samples, reconstituted HCC after serial transplantations. Transcriptomic analysis of iHCC and PHHs showed that MUC1 and FAP are expressed in iHCC but not in normal livers. Chimeric antigen receptor (CAR) T cells against these two surface markers efficiently lyse iHCC cells. The properties of iHCC model provide a biological basis for several clinical hallmarks of HCC, and iHCC may serve as a model to study HCC initiation and to identify diagnostic biomarkers and targets for cellular immunotherapy.
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Affiliation(s)
- Zhiwu Jiang
- China‐New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Center for Cell Regeneration and Biological Therapies, Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou China
| | - Lin Cheng
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory) Guangzhou China
| | - Zhiping Wu
- China‐New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Center for Cell Regeneration and Biological Therapies, Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou China
| | - Linfu Zhou
- China‐New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Center for Cell Regeneration and Biological Therapies, Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou China
| | - Haitao Wang
- Cancer Center Faculty of Health Sciences University of Macau Macau China
| | - Qilan Hong
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory) Guangzhou China
| | - Qiting Wu
- China‐New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Center for Cell Regeneration and Biological Therapies, Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou China
| | - Youguo Long
- China‐New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Center for Cell Regeneration and Biological Therapies, Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou China
| | - Yunlin Huang
- China‐New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Center for Cell Regeneration and Biological Therapies, Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou China
| | - Gaoqi Xu
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory) Guangzhou China
| | - Yao Yao
- China‐New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Center for Cell Regeneration and Biological Therapies, Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou China
| | | | - Zhenfeng Zhang
- The Second Affiliated Hospital of Guangzhou Medical University Guangzhou China
| | - Lili Yang
- Department of Nutrition Guangdong Provincial Key Laboratory of Food School of Public Health Sun Yat‐sen University Guangzhou China
| | - Wei Luo
- Clinical Research Institute The First People's Hospital of Foshan Foshan Guangdong China
| | - Jie Yang
- Guangdong Women and Children Hospital Panyu, Guangzhou China
| | - Likun Gong
- Shanghai Institute of Materia Medica Chinese Academy of Sciences, Zhang Jiang Hi‐Tech Park Shanghai China
| | - Pentao Liu
- School of Biomedical Sciences, Stem Cell, and Regenerative Medicine Consortium Li Ka Shing Faculty of Medicine The University of Hong Kong Hong Kong China
| | - Xinwen Chen
- China‐New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Center for Cell Regeneration and Biological Therapies, Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou China
| | - Shuzhong Cui
- Cancer Hospital and Institute of Guangzhou Medical University Guangzhou China
| | - Qi Zhang
- Guangdong Key Laboratory of Liver Disease Research The Third Affiliated Hospital of Sun Yat‐sen University Guangzhou China
| | - Yinxiong Li
- China‐New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Center for Cell Regeneration and Biological Therapies, Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou China
| | - Peng Li
- China‐New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Center for Cell Regeneration and Biological Therapies, Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory) Guangzhou China
- Centre for Regenerative Medicine and Health Hong Kong Institute of Science & Innovation Chinese Academy of Sciences Hong Kong China
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28
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Wu WY, Wang ZX, Li TS, Ding XQ, Liu ZH, Yang J, Fang L, Kong LD. SSBP1 drives high fructose-induced glomerular podocyte ferroptosis via activating DNA-PK/p53 pathway. Redox Biol 2022; 52:102303. [PMID: 35390676 PMCID: PMC8990215 DOI: 10.1016/j.redox.2022.102303] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/13/2022] [Accepted: 03/23/2022] [Indexed: 01/14/2023] Open
Abstract
High fructose consumption is a significant risking factor for glomerular podocyte injury. However, the causes of high fructose-induced glomerular podocyte injury are still unclear. In this study, we reported a novel mechanism by which high fructose induced ferroptosis, a newly form of programmed cell death, in glomerular podocyte injury. We performed quantitative proteomic analysis in glomeruli of high fructose-fed rats to identify key regulating proteins involved in glomerular injury, and found that mitochondrial single-strand DNA-binding protein 1 (SSBP1) was markedly upregulated. Depletion of SSBP1 could alleviate high fructose-induced ferroptotic cell death in podocytes. Subsequently, we found that SSBP1 positively regulated a transcription factor p53 by interacting with DNA-dependent protein kinase (DNA-PK) and p53 to drive ferroptosis in high fructose-induced podocyte injury. Mechanically, SSBP1 activated DNA-PK to induce p53 phosphorylation at serine 15 (S15) to promote the nuclear accumulation of p53, and thereby inhibited expression of ferroptosis regulator solute carrier family 7 member 11 (SLC7A11) in high fructose-exposed podocytes. Natural antioxidant pterostilebene was showed to downregulate SSBP1 and then inhibit DNA-PK/p53 pathway in its alleviation of high fructose-induced glomerular podocyte ferroptosis and injury. This study identified SSBP1 as a novel intervention target against high fructose-induced podocyte ferroptosis and suggested that the suppression of SSBP1 by pterostilbene may be a potential therapy for the treatment of podocyte ferroptosis in glomerular injury.
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Affiliation(s)
- Wen-Yuan Wu
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Chinese Medicine, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing, PR China
| | - Zi-Xuan Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Chinese Medicine, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing, PR China
| | - Tu-Shuai Li
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Chinese Medicine, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing, PR China
| | - Xiao-Qin Ding
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Chinese Medicine, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing, PR China
| | - Zhi-Hong Liu
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Chinese Medicine, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing, PR China
| | - Jie Yang
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Chinese Medicine, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing, PR China
| | - Lei Fang
- Jiangsu Key Laboratory of Molecular Medicine & Chemistry and Biomedicine Innovation Center, Medical School, Nanjing University, Nanjing, PR China.
| | - Ling-Dong Kong
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Chinese Medicine, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing, PR China.
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29
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Cai BH, Bai ZY, Lien CF, Yu SJ, Lu RY, Wu MH, Wu WC, Chen CC, Hsu YC. NAMPT Inhibitor and P73 Activator Represses P53 R175H Mutated HNSCC Cell Proliferation in a Synergistic Manner. Biomolecules 2022; 12:biom12030438. [PMID: 35327630 PMCID: PMC8946684 DOI: 10.3390/biom12030438] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/04/2022] [Accepted: 03/09/2022] [Indexed: 01/25/2023] Open
Abstract
The p53 family has the following three members: p53, p63 and p73. p53 is a tumor suppressor gene that frequently exhibits mutation in head and neck cancer. Most p53 mutants are loss-of-function (LoF) mutants, but some acquire some oncogenic function, such as gain of function (GoF). It is known that the aggregation of mutant p53 can induce p53 GoF. The p73 activators RETRA and NSC59984 have an anti-cancer effect in p53 mutation cells, but we found that p73 activators were not effective in all head and neck squamous cell carcinoma (HNSCC) cell lines, with different p53 mutants. A comparison of the gene expression profiles of several regulator(s) in mutant HNSCC cells with or without aggregation of p53 revealed that nicotinamide phosphoribosyltransferase (NAMPT) is a key regulator of mutant p53 aggregation. An NAMPT inhibitor, to reduce abnormal aggregation of mutant p53, used in combination with a p73 activator, was able to effectively repress growth in HNSCC cells with p53 GoF mutants. This study, therefore, suggests a potential combination therapy approach for HNSCC with a p53 GoF mutation.
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Affiliation(s)
- Bi-He Cai
- School of Medicine, I-Shou University, Kaohsiung 82445, Taiwan; (C.-F.L.); (M.-H.W.)
- Correspondence: (B.-H.C.); (C.-C.C.); (Y.-C.H.)
| | - Zhi-Yu Bai
- Department of Medical Laboratory Science, I-Shou University, Kaohsiung 82445, Taiwan; (Z.-Y.B.); (S.-J.Y.); (R.-Y.L.)
| | - Ching-Feng Lien
- School of Medicine, I-Shou University, Kaohsiung 82445, Taiwan; (C.-F.L.); (M.-H.W.)
- Department of Otolaryngology-Head and Neck Surgery, E-DA Hospital, Kaohsiung 82445, Taiwan
| | - Si-Jie Yu
- Department of Medical Laboratory Science, I-Shou University, Kaohsiung 82445, Taiwan; (Z.-Y.B.); (S.-J.Y.); (R.-Y.L.)
| | - Rui-Yu Lu
- Department of Medical Laboratory Science, I-Shou University, Kaohsiung 82445, Taiwan; (Z.-Y.B.); (S.-J.Y.); (R.-Y.L.)
| | - Ming-Han Wu
- School of Medicine, I-Shou University, Kaohsiung 82445, Taiwan; (C.-F.L.); (M.-H.W.)
| | - Wei-Chen Wu
- Department of Physical Therapy, I-Shou University, Kaohsiung 82445, Taiwan;
| | - Chia-Chi Chen
- Department of Pathology, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan
- Correspondence: (B.-H.C.); (C.-C.C.); (Y.-C.H.)
| | - Yi-Chiang Hsu
- School of Medicine, I-Shou University, Kaohsiung 82445, Taiwan; (C.-F.L.); (M.-H.W.)
- Correspondence: (B.-H.C.); (C.-C.C.); (Y.-C.H.)
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30
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Zhu C, Tong R, Jiang X, Xiao H, Guan J, Shu J. DNTTIP1 is a Prognostic Biomarker Correlated With Immune Infiltrates in Hepatocellular Carcinoma: A Study Based on The Cancer Genome Atlas Data. Front Genet 2022; 12:767834. [PMID: 35265097 PMCID: PMC8899818 DOI: 10.3389/fgene.2021.767834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 11/08/2021] [Indexed: 11/13/2022] Open
Abstract
Deoxynucleotidyltransferase terminal-interacting protein 1 (DNTTIP1) is involved in the deacetylation of p53 in regulating cell cycle and is associated with cancers at the molecular level. In this study, we evaluated the prognostic value in hepatocellular carcinoma (HCC) based on data from The Cancer Genome Atlas (TCGA) database. Kruskal-Wallis test, Wilcoxon signed-rank test, and logistic regression were used to evaluate the relationship between DNTTIP1 expression and clinicopathological features. Cox regression and the Kaplan-Meier method were adopted to evaluate prognosis-related factors. Gene set enrichment analysis (GSEA) was performed to identify the key pathways related to DNTTIP1. The correlations between DNTTIP1 and cancer immune infiltrates were investigated by single-sample Gene Set Enrichment Analysis (ssGSEA). DNTTIP1 was found to be upregulated with amplification in tumor tissues in multiple HCC cohorts. High DNTTIP1 expression was associated with poorer overall survival (OS) and disease-free survival (DFS). GSEA suggested that DNTTIP1 regulates the cell cycle mitotic, G1/S, and G2/M phases and Fc fragment of IgE receptor I (FCERI)-mediated NF-κB and MAPK pathway and Fc fragment of IgG receptor (FCGR) activation pathways. Notably, ssGSEA indicated that DNTTIP1 expression was positively correlated with infiltrating levels of Th2 cells, Tfh, NK CD56 bright cells, aDCs, T helper cells, Th1 cells, and macrophages. These findings suggest that DNTTIP1 is correlated with prognosis and immune infiltration in HCC, which lays a foundation for further study of the immune-regulatory role of DNTTIP1 in HCC.
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Affiliation(s)
- Changyu Zhu
- Department of Pharmacy, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.,Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Rongsheng Tong
- Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.,Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Xiaolei Jiang
- Department of Pharmacy, Gansu Provincial Hospital of TCM, Lanzhou, China
| | - Hua Xiao
- Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.,Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Jianmei Guan
- Central Sterile Supply Department, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, China
| | - Jianchen Shu
- Department of Orthopedics, People's Hospital of Leshan, Leshan, China
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31
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Huang S, Cao B, Wang J, Zhang Y, Ledet E, Sartor O, Xiong Y, Zeng SX, Lu H. Cancer-derived C-terminus-extended p53 mutation confers dominant-negative effect on its wild-type counterpart. J Mol Cell Biol 2021; 14:6464145. [PMID: 34918105 PMCID: PMC8964174 DOI: 10.1093/jmcb/mjab078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/25/2021] [Accepted: 10/28/2021] [Indexed: 11/24/2022] Open
Abstract
The vast majority of p53 missense mutants lose the wild-type (wt) function and/or exert ‘dominant-negative’ effects on their wt counterpart. Here, we identify a novel form of p53 mutation with an extended C-terminus (p53 long C-terminus, p53LC) in a variety of human cancers. Interestingly, the two representative mutants (named ‘p53-374*48’ and ‘p53-393*78’) as tested in this study show both loss-of-function and dominant-negative phenotypes in cell proliferation and colony formation assays. Mechanistically, p53LCs interact with and retain wt p53 in the cytoplasm and prevent it from binding to the promoters of target genes, consequently inhibiting its transcriptional activity. Also, p53LCs are very stable, though not acetylated in cells. Remarkably, the p53LCs can desensitize wt p53-containing cancer cells to p53-activating agents. Together, our results unveil a longer form of p53 mutant that possesses a dominant-negative effect on its wt counterpart, besides losing its wt activity.
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Affiliation(s)
- Shibo Huang
- Institute of Clinical Pharmacology, Nanchang University, Nanchang 330006, China.,Department of Biochemistry & Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Bo Cao
- Department of Biochemistry & Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA.,College of Pharmacy, Xavier University of Louisiana, New Orleans, LA 70125, USA
| | - Jieqiong Wang
- Department of Biochemistry & Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Yiwei Zhang
- Department of Biochemistry & Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Elisa Ledet
- Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Oliver Sartor
- Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Yuqin Xiong
- Institute of Clinical Pharmacology, Nanchang University, Nanchang 330006, China
| | - Shelya X Zeng
- Department of Biochemistry & Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Hua Lu
- Department of Biochemistry & Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
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32
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Chen R, Lei S, She Y, Zhou S, Shi H, Li C, Jiang T. Lnc-GD2H Promotes Proliferation by Forming a Feedback Loop With c-Myc and Enhances Differentiation Through Interacting With NACA to Upregulate Myog in C2C12 Myoblasts. Front Cell Dev Biol 2021; 9:671857. [PMID: 34490239 PMCID: PMC8416608 DOI: 10.3389/fcell.2021.671857] [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: 02/25/2021] [Accepted: 05/07/2021] [Indexed: 11/23/2022] Open
Abstract
In the present study, the roles of a novel long non-coding RNA (lncRNA), lnc-GD2H, in promoting C2C12 myoblast proliferation and differentiation and muscle regeneration were investigated by quantitative polymerase chain reaction, western blotting, Cell Counting Kit-8, 5-ethynyl-2′-deoxyuridine (EdU), immunofluorescence staining, luciferase reporter, mass spectrometry, pulldown, chromatin immunoprecipitation, RNA immunoprecipitation assay, wound healing assays, and cardiotoxin (CTX)-induced muscle injury assays. It was observed that lnc-GD2H promoted myoblast proliferation as evidenced by the enhancement of the proliferation markers c-Myc, CDK2, CDK4, and CDK6, percentage of EdU-positive cells, and rate of cell survival during C2C12 myoblast proliferation. Additional experiments confirmed that c-Myc bound to the lnc-GD2H promoter and regulated its transcription. lnc-GD2H promoted cell differentiation with enhanced MyHC immunostaining as well as increased expression of the myogenic marker genes myogenin (Myog), Mef2a, and Mef2c during myoblast differentiation. Additional assays indicated that lnc-GD2H interacted with NACA which plays a role of transcriptional regulation in myoblast differentiation, and the enrichment of NACA at the Myog promoter was impaired by lnc-GD2H. Furthermore, inhibition of lnc-GD2H impaired muscle regeneration after CTX-induced injury in mice. lnc-GD2H facilitated the expression of proliferating marker genes and formed a feedback loop with c-Myc during myoblast proliferation. In differentiating myoblasts, lnc-GD2H interacted with NACA to relieve the inhibitory effect of NACA on Myog, facilitating Myog expression to promote differentiation. The results provide evidence for the role of lncRNAs in muscle regeneration and are useful for developing novel therapeutic targets for muscle disorders.
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Affiliation(s)
- Rui Chen
- Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Si Lei
- Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Yanling She
- Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Shanyao Zhou
- Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Huacai Shi
- Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Cheng Li
- Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Ting Jiang
- Department of Radiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Zhang C, Liu J, Xu D, Zhang T, Hu W, Feng Z. Gain-of-function mutant p53 in cancer progression and therapy. J Mol Cell Biol 2021; 12:674-687. [PMID: 32722796 PMCID: PMC7749743 DOI: 10.1093/jmcb/mjaa040] [Citation(s) in RCA: 137] [Impact Index Per Article: 45.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/28/2020] [Accepted: 07/08/2020] [Indexed: 12/21/2022] Open
Abstract
p53 is a key tumor suppressor, and loss of p53 function is frequently a prerequisite for cancer development. The p53 gene is the most frequently mutated gene in human cancers; p53 mutations occur in >50% of all human cancers and in almost every type of human cancers. Most of p53 mutations in cancers are missense mutations, which produce the full-length mutant p53 (mutp53) protein with only one amino acid difference from wild-type p53 protein. In addition to loss of the tumor-suppressive function of wild-type p53, many mutp53 proteins acquire new oncogenic activities independently of wild-type p53 to promote cancer progression, termed gain-of-function (GOF). Mutp53 protein often accumulates to very high levels in cancer cells, which is critical for its GOF. Given the high mutation frequency of the p53 gene and the GOF activities of mutp53 in cancer, therapies targeting mutp53 have attracted great interest. Further understanding the mechanisms underlying mutp53 protein accumulation and GOF will help develop effective therapies treating human cancers containing mutp53. In this review, we summarize the recent advances in the studies on mutp53 regulation and GOF as well as therapies targeting mutp53 in human cancers.
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Affiliation(s)
- Cen Zhang
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers-State University of New Jersey, New Brunswick, NJ 08903, USA
| | - Juan Liu
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers-State University of New Jersey, New Brunswick, NJ 08903, USA
| | - Dandan Xu
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers-State University of New Jersey, New Brunswick, NJ 08903, USA
| | - Tianliang Zhang
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers-State University of New Jersey, New Brunswick, NJ 08903, USA
| | - Wenwei Hu
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers-State University of New Jersey, New Brunswick, NJ 08903, USA
| | - Zhaohui Feng
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers-State University of New Jersey, New Brunswick, NJ 08903, USA
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Timmerman DM, Remmers TL, Hillenius S, Looijenga LHJ. Mechanisms of TP53 Pathway Inactivation in Embryonic and Somatic Cells-Relevance for Understanding (Germ Cell) Tumorigenesis. Int J Mol Sci 2021; 22:ijms22105377. [PMID: 34065345 PMCID: PMC8161298 DOI: 10.3390/ijms22105377] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/14/2021] [Accepted: 05/15/2021] [Indexed: 01/10/2023] Open
Abstract
The P53 pathway is the most important cellular pathway to maintain genomic and cellular integrity, both in embryonic and non-embryonic cells. Stress signals induce its activation, initiating autophagy or cell cycle arrest to enable DNA repair. The persistence of these signals causes either senescence or apoptosis. Over 50% of all solid tumors harbor mutations in TP53 that inactivate the pathway. The remaining cancers are suggested to harbor mutations in genes that regulate the P53 pathway such as its inhibitors Mouse Double Minute 2 and 4 (MDM2 and MDM4, respectively). Many reviews have already been dedicated to P53, MDM2, and MDM4, while this review additionally focuses on the other factors that can deregulate P53 signaling. We discuss that P14ARF (ARF) functions as a negative regulator of MDM2, explaining the frequent loss of ARF detected in cancers. The long non-coding RNA Antisense Non-coding RNA in the INK4 Locus (ANRIL) is encoded on the same locus as ARF, inhibiting ARF expression, thus contributing to the process of tumorigenesis. Mutations in tripartite motif (TRIM) proteins deregulate P53 signaling through their ubiquitin ligase activity. Several microRNAs (miRNAs) inactivate the P53 pathway through inhibition of translation. CCCTC-binding factor (CTCF) maintains an open chromatin structure at the TP53 locus, explaining its inactivation of CTCF during tumorigenesis. P21, a downstream effector of P53, has been found to be deregulated in different tumor types. This review provides a comprehensive overview of these factors that are known to deregulate the P53 pathway in both somatic and embryonic cells, as well as their malignant counterparts (i.e., somatic and germ cell tumors). It provides insights into which aspects still need to be unraveled to grasp their contribution to tumorigenesis, putatively leading to novel targets for effective cancer therapies.
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35
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Liebl MC, Hofmann TG. The Role of p53 Signaling in Colorectal Cancer. Cancers (Basel) 2021; 13:2125. [PMID: 33924934 PMCID: PMC8125348 DOI: 10.3390/cancers13092125] [Citation(s) in RCA: 116] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 12/24/2022] Open
Abstract
The transcription factor p53 functions as a critical tumor suppressor by orchestrating a plethora of cellular responses such as DNA repair, cell cycle arrest, cellular senescence, cell death, cell differentiation, and metabolism. In unstressed cells, p53 levels are kept low due to its polyubiquitination by the E3 ubiquitin ligase MDM2. In response to various stress signals, including DNA damage and aberrant growth signals, the interaction between p53 and MDM2 is blocked and p53 becomes stabilized, allowing p53 to regulate a diverse set of cellular responses mainly through the transactivation of its target genes. The outcome of p53 activation is controlled by its dynamics, its interactions with other proteins, and post-translational modifications. Due to its involvement in several tumor-suppressing pathways, p53 function is frequently impaired in human cancers. In colorectal cancer (CRC), the TP53 gene is mutated in 43% of tumors, and the remaining tumors often have compromised p53 functioning because of alterations in the genes encoding proteins involved in p53 regulation, such as ATM (13%) or DNA-PKcs (11%). TP53 mutations in CRC are usually missense mutations that impair wild-type p53 function (loss-of-function) and that even might provide neo-morphic (gain-of-function) activities such as promoting cancer cell stemness, cell proliferation, invasion, and metastasis, thereby promoting cancer progression. Although the first compounds targeting p53 are in clinical trials, a better understanding of wild-type and mutant p53 functions will likely pave the way for novel CRC therapies.
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Affiliation(s)
- Magdalena C. Liebl
- Institute of Toxicology, University Medical Center Mainz, Johannes Gutenberg University, 55131 Mainz, Germany;
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36
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Zhang X, Zhang J, Liu Y, Li J, Tan J, Song Z. Bcl-2 Associated Athanogene 2 (BAG2) is Associated With Progression and Prognosis of Hepatocellular Carcinoma: A Bioinformatics-Based Analysis. Pathol Oncol Res 2021; 27:594649. [PMID: 34257542 PMCID: PMC8262200 DOI: 10.3389/pore.2021.594649] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 02/12/2021] [Indexed: 12/28/2022]
Abstract
Background: Bcl-2 associated athanogene2 (BAG2) is reported to act as an oncogene or a tumor-suppressor in tumors in a context-dependent way; however, its function in hepatocellular carcinoma (HCC) remains unclear. Methods: Immunohistochemistry (IHC) staining, cell counting kit-8 (CCK-8) assay, apoptotic assay, cell invasion assay and a set of bioinformatics tools were integrated to analyze the role of BAG2 in hepatocellular carcinoma. Results: BAG2 was significantly up-regulated in HCC. Prognostic analysis indicated that HCC patients with high expression of BAG2 had significantly shorter overall survival, progression free survival and disease specific survival. Besides, silencing BAG2 in HCC cells impaired cell proliferation, facilitated apoptosis and repressed invasion of the cells. Bioinformatics analysis showed that BAG2 might regulate ribosome biogenesis in HCC. Conclusion: This study revealed that the up-regulated BAG2 in HCC was associated with a worse prognosis and might favor the progression of the disease.
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Affiliation(s)
- Xi Zhang
- Department of Oncology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Junjun Zhang
- Department of Oncology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Yang Liu
- Department of Pathology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Jie Li
- Department of Information Science and Engineering, Hunan University of Chinese Medicine, Changsha, China
| | - Juan Tan
- Department of Pathology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Zewen Song
- Department of Oncology, The Third Xiangya Hospital of Central South University, Changsha, China
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37
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Targeting Pin1 for Modulation of Cell Motility and Cancer Therapy. Biomedicines 2021; 9:biomedicines9040359. [PMID: 33807199 PMCID: PMC8065645 DOI: 10.3390/biomedicines9040359] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/25/2021] [Accepted: 03/27/2021] [Indexed: 01/09/2023] Open
Abstract
Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1 (Pin1) specifically binds and isomerizes the phosphorylated serine/threonine-proline (pSer/Thr-Pro) motif, which leads to changes in protein conformation and function. Pin1 is widely overexpressed in cancers and plays an important role in tumorigenesis. Mounting evidence has revealed that targeting Pin1 is a potential therapeutic approach for various cancers by inhibiting cell proliferation, reducing metastasis, and maintaining genome stability. In this review, we summarize the underlying mechanisms of Pin1-mediated upregulation of oncogenes and downregulation of tumor suppressors in cancer development. Furthermore, we also discuss the multiple roles of Pin1 in cancer hallmarks and examine Pin1 as a desirable pharmaceutical target for cancer therapy. We also summarize the recent progress of Pin1-targeted small-molecule compounds for anticancer activity.
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38
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Shen J, Hu J, Wu J, Luo X, Li Y, Li J. Molecular characterization of long-term survivors of hepatocellular carcinoma. Aging (Albany NY) 2021; 13:7517-7537. [PMID: 33686022 PMCID: PMC7993728 DOI: 10.18632/aging.202615] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 11/23/2020] [Indexed: 04/09/2023]
Abstract
Hepatocellular carcinoma is one of the most fatal cancers, and the majority of patients die within three years. However, a small proportion of patients overcome this fatal disease and survive for more than five years. To determine the molecular characteristics of long-term survivors (survival ≥ 5 years), we analyzed the genomic and clinical data of hepatocellular carcinoma patients from The Cancer Genome Atlas and the International Cancer Genome Consortium databases, and identified molecular features that were strongly associated with the patients' prognosis. Genes involved in the cell cycle were expressed at lower levels in tumor tissues from long-term survivors than those from short-term survivors (survival ≤ 1 years). High levels of positive regulators of the G1/S cell cycle transition (cyclin-dependent kinase 2 [CDK2], CDK4, Cyclin E2 [CCNE2], E2F1, E2F2) were potential markers of poor prognosis. Hepatocellular carcinoma patients with TP53 mutations were mainly belonged to the short-term survivor group. Abemaciclib, an FDA-approved selective inhibitor of CDK4/6, inhibited the cell proliferation and tumor growth of hepatocellular carcinoma cells in vitro and in vivo. Thus, high G1/S transition-related gene levels and TP53 mutations are promising diagnostic biomarkers for short-term survivals, and abemaciclib may be a potential targeted drug for hepatocellular carcinoma.
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Affiliation(s)
- Junwei Shen
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
- Shanghai Pudong New Area Mental Health Center, Tongji University School of Medicine, Shanghai 200124, China
| | - Jing Hu
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 201204, China
| | - Jiawen Wu
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
- Shanghai Pudong New Area Mental Health Center, Tongji University School of Medicine, Shanghai 200124, China
| | - Xiaoli Luo
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
- Shanghai Pudong New Area Mental Health Center, Tongji University School of Medicine, Shanghai 200124, China
| | - Yanfei Li
- Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
| | - Jue Li
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
- Shanghai Pudong New Area Mental Health Center, Tongji University School of Medicine, Shanghai 200124, China
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39
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Jangid A, Malik MZ, Ramaswamy R, Singh RKB. Transition and identification of pathological states in p53 dynamics for therapeutic intervention. Sci Rep 2021; 11:2349. [PMID: 33504910 PMCID: PMC7840995 DOI: 10.1038/s41598-021-82054-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 01/11/2021] [Indexed: 01/30/2023] Open
Abstract
We study a minimal model of the stress-driven p53 regulatory network that includes competition between active and mutant forms of the tumor-suppressor gene p53. Depending on the nature and level of the external stress signal, four distinct dynamical states of p53 are observed. These states can be distinguished by different dynamical properties which associate to active, apoptotic, pre-malignant and cancer states. Transitions between any two states, active, apoptotic, and cancer, are found to be unidirectional and irreversible if the stress signal is either oscillatory or constant. When the signal decays exponentially, the apoptotic state vanishes, and for low stress the pre-malignant state is bounded by two critical points, allowing the system to transition reversibly from the active to the pre-malignant state. For significantly large stress, the range of the pre-malignant state expands, and the system moves to irreversible cancerous state, which is a stable attractor. This suggests that identification of the pre-malignant state may be important both for therapeutic intervention as well as for drug delivery.
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Affiliation(s)
- Amit Jangid
- School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi, 110016, India
| | - Md Zubbair Malik
- School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
| | - Ram Ramaswamy
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi, 110016, India.
| | - R K Brojen Singh
- School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
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40
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Huang C, Hao Q, Shi G, Zhou X, Zhang Y. BCL7C suppresses ovarian cancer growth by inactivating mutant p53. J Mol Cell Biol 2020; 13:141-150. [PMID: 33306126 PMCID: PMC8104935 DOI: 10.1093/jmcb/mjaa065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 08/05/2020] [Accepted: 08/19/2020] [Indexed: 12/17/2022] Open
Abstract
B-cell CLL/lymphoma 7 protein family member C (BCL7C) located at chromosome 16p11.2 shares partial sequence homology with the other two family members, BCL7A and BCL7B. Its role in cancer remains completely unknown. Here, we report our finding of its tumor-suppressive role in ovarian cancer. Supporting this is that BCL7C is downregulated in human ovarian carcinomas, and its underexpression is associated with unfavorable prognosis of ovarian cancer as well as some other types of human cancers. Also, ectopic BCL7C restrains cell proliferation and invasion of ovarian cancer cells. Consistently, depletion of BCL7C reduces apoptosis and promotes cell proliferation and invasion of these cancer cells. Mechanistically, BCL7C suppresses mutant p53-mediated gene transcription by binding to mutant p53, while knockdown of BCL7C enhances the expression of mutant p53 target genes in ovarian cancer cells. Primary ovarian carcinomas that sustain low levels of BCL7C often show the elevated expression of mutant p53 target genes. In line with these results, BCL7C abrogates mutant p53-induced cell proliferation and invasion, but had no impact on proliferation and invasion of cancer cells with depleted p53 or harboring wild-type p53. Altogether, our results demonstrate that BCL7C can act as a tumor suppressor to prevent ovarian tumorigenesis and progression by counteracting mutant p53 activity.
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Affiliation(s)
- Canhua Huang
- Gynecological Oncology Research and Engineering Center of Hunan Province, Changsha 410008, China.,Department of Gynecology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Qian Hao
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China.,Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China
| | - Getao Shi
- School of Life Sciences, Shaoxing University, Shaoxing 312000, China
| | - Xiang Zhou
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China.,Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China
| | - Yu Zhang
- Gynecological Oncology Research and Engineering Center of Hunan Province, Changsha 410008, China.,Department of Gynecology, Xiangya Hospital, Central South University, Changsha 410008, China
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41
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Tam B, Sinha S, Wang SM. Combining Ramachandran plot and molecular dynamics simulation for structural-based variant classification: Using TP53 variants as model. Comput Struct Biotechnol J 2020; 18:4033-4039. [PMID: 33363700 PMCID: PMC7744649 DOI: 10.1016/j.csbj.2020.11.041] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/23/2020] [Accepted: 11/23/2020] [Indexed: 12/12/2022] Open
Abstract
The wide application of new DNA sequencing technologies is generating vast quantities of genetic variation data at unprecedented speed. Developing methodologies to decode the pathogenicity of the variants is imperatively demanding. We hypothesized that as deleterious variants may function through disturbing structural stability of their affected proteins, information from structural change caused by genetic variants can be used to identify the variants with deleterious effects. In order to measure the structural change for proteins with large size, we designed a method named RP-MDS composed of Ramachandran plot (RP) and Molecular Dynamics Simulation (MDS). Ramachandran plot captures the variant-caused secondary structural change, whereas MDS provides a quantitative measure for the variant-caused globular structural change. We tested the method using variants in TP53 DNA binding domain of 219 residues as the model. In total, RP-MDS identified 23 of 38 (60.5%) TP53 known Pathogenic variants and 17 of 42 (41%) TP53 VUS that caused significant changes of P53 structure. Our study demonstrates that RP-MDS method provides a powerful protein structure-based tool to screen deleterious genetic variants affecting large-size proteins.
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Affiliation(s)
- Benjamin Tam
- Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau
| | - Siddharth Sinha
- Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau
| | - San Ming Wang
- Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau
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42
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Zheng R, Shi Z, Li W, Yu J, Wang Y, Zhou Q. Identification and prognostic value of DLGAP5 in endometrial cancer. PeerJ 2020; 8:e10433. [PMID: 33312770 PMCID: PMC7703392 DOI: 10.7717/peerj.10433] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 11/05/2020] [Indexed: 01/01/2023] Open
Abstract
Background Endometrial cancer poses a serious threat to women’s health worldwide, and its pathogenesis, although actively explored, is not fully understood. DLGAP5 is a recently identified cell cycle-regulation gene not reported in endometrial cancer. This study was aiming to analyze the role of DLGAP5 in tumorigenesis and development and to investigate its prognostic significance of patients with endometrial cancer. Methodology Microarray datasets (GSE17025, GSE39099 and GSE63678) from the GEO database were used for comparative analysis, and their intersection was obtained by applying the Venn diagram, and DLGAP5 was selected as the target gene. Next, transcriptome data (n = 578) was downloaded from TCGA-UCEC to analyze the mRNA expression profile of DLGAP5. Then, immunohistochemical data provided by HPA were used to identify the different protein expression levels of DLGAP5 in tumor tissues and normal tissues. Subsequently, the prognostic meaning of DLGAP5 in patients with endometrial cancer was explored based on survival data from TCGA-UCEC (n = 541). Finally, the reliability of DLGAP5 expression was verified by RT-qPCR. Results Transcriptome data from TCGA-UCEC, immunohistochemical data from HPA, and RT-qPCR results from clinical samples were used for triple validation to confirm that the expression of DLGAP5 in endometrial cancer tissues was significantly higher than that in normal endometrial tissues. Kaplan–Meier survival analysis announced that the expression level of DLGAP5 was negatively correlated with the overall survival of patients with endometrial cancer. Conclusions DLGAP5 is a potential oncogene with cell cycle regulation, and its overexpression can predict the poor prognosis of patients with endometrial cancer. As a candidate target for the diagnosis and treatment of endometrial cancer, it is worthwhile to make further study to reveal the carcinogenicity of DLGAP5 and the mechanism of its resistance of organisms.
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Affiliation(s)
- Ruoyi Zheng
- Department of Gynecology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zhengzheng Shi
- Department of Gynecology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Wenzhi Li
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
| | - Jianqin Yu
- Department of Gynecology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yuli Wang
- Department of Gynecology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Qing Zhou
- Department of Gynecology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
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Zhu G, Pan C, Bei JX, Li B, Liang C, Xu Y, Fu X. Mutant p53 in Cancer Progression and Targeted Therapies. Front Oncol 2020; 10:595187. [PMID: 33240819 PMCID: PMC7677253 DOI: 10.3389/fonc.2020.595187] [Citation(s) in RCA: 112] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 10/12/2020] [Indexed: 12/17/2022] Open
Abstract
TP53 is the most frequently mutated tumor suppressor gene in human cancer. The majority of mutations of p53 are missense mutations, leading to the expression of the full length p53 mutant proteins. Mutant p53 (Mutp53) proteins not only lose wild-type p53-dependent tumor suppressive functions, but also frequently acquire oncogenic gain-of-functions (GOF) that promote tumorigenesis. In this review, we summarize the recent advances in our understanding of the oncogenic GOF of mutp53 and the potential therapies targeting mutp53 in human cancers. In particular, we discuss the promising drugs that are currently under clinical trials as well as the emerging therapeutic strategies, including CRISPR/Cas9 based genome edition of mutant TP53 allele, small peptide mediated restoration of wild-type p53 function, and immunotherapies that directly eliminate mutp53 expressing tumor cells.
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Affiliation(s)
- Gaoyang Zhu
- Postdoctoral Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan, China
| | - Chaoyun Pan
- Department of Biochemistry and Molecular Biology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Jin-Xin Bei
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Bo Li
- Department of Biochemistry and Molecular Biology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Chen Liang
- Shenzhen International Institute for Biomedical Research, Shenzhen, China
| | - Yang Xu
- Department of Pediatrics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, China.,Division of Biological Sciences, University of California, San Diego, La Jolla, CA, United States
| | - Xuemei Fu
- Department of Pediatrics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
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44
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Wang S, Hao Q, Li J, Chen Y, Lu H, Wu X, Zhou X. Ubiquitin ligase DTX3 empowers mutant p53 to promote ovarian cancer development. Genes Dis 2020; 9:705-716. [PMID: 35782979 PMCID: PMC9243342 DOI: 10.1016/j.gendis.2020.11.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 11/01/2020] [Accepted: 11/13/2020] [Indexed: 01/21/2023] Open
Abstract
The deltex family protein DTX3 is believed to possess E3 ubiquitin ligase activity, as it contains a classic RING finger domain. However, its biological role and the underlying mechanism in cancer remain largely elusive. Here, we identified DTX3 as a novel mutant p53-interacting protein in ovarian carcinoma. Mechanistically, DTX3 mediated mutant p53 ubiquitination and stabilization by perturbing the MDM2-mutant p53 interaction, consequently leading to activation of diverse mutant p53 target genes. Importantly, a positive correlation between the expression of DTX3 and mutant p53 target genes was further validated in ovarian carcinomas. Ectopic DTX3 promoted, while depletion of DTX3 suppressed, ovarian cancer cell proliferation and invasion. Remarkably, the pro-tumorigenic effect of DTX3 is dependent on mutant p53, because ablation of mutant p53 significantly impaired DTX3-induced gene expression and ovarian cancer cell growth and propagation. Furthermore, DTX3 elevated the expression of mutant p53 target genes and boosted ovarian tumor growth in vivo. Finally, DTX3 was amplified and overexpressed in ovarian carcinomas, which is significantly associated with unfavorable prognosis. Altogether, our findings unveil the oncogenic role of DTX3 in ovarian cancer development by bolstering mutant p53 activity.
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Affiliation(s)
- Shanshan Wang
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, PR China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, PR China
| | - Qian Hao
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, PR China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, PR China
| | - Jiajia Li
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, PR China
- Department of Gynecological Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, PR China
| | - Yajie Chen
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, PR China
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, PR China
| | - Hua Lu
- Department of Biochemistry & Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Xiaohua Wu
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, PR China
- Department of Gynecological Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, PR China
- Corresponding author. Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, PR China.
| | - Xiang Zhou
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, PR China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, PR China
- Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, PR China
- Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, PR China
- Corresponding author. Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
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Jung JH, Lee H, Zeng SX, Lu H. RBM10, a New Regulator of p53. Cells 2020; 9:cells9092107. [PMID: 32947864 PMCID: PMC7563659 DOI: 10.3390/cells9092107] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/10/2020] [Accepted: 09/15/2020] [Indexed: 12/14/2022] Open
Abstract
The tumor suppressor p53 acts as a transcription factor that regulates the expression of a number of genes responsible for DNA repair, cell cycle arrest, metabolism, cell migration, angiogenesis, ferroptosis, senescence, and apoptosis. It is the most commonly silenced or mutated gene in cancer, as approximately 50% of all types of human cancers harbor TP53 mutations. Activation of p53 is detrimental to normal cells, thus it is tightly regulated via multiple mechanisms. One of the recently identified regulators of p53 is RNA-binding motif protein 10 (RBM10). RBM10 is an RNA-binding protein frequently deleted or mutated in cancer cells. Its loss of function results in various deformities, such as cleft palate and malformation of the heart, and diseases such as lung adenocarcinoma. In addition, RBM10 mutations are frequently observed in lung adenocarcinomas, colorectal carcinomas, and pancreatic ductal adenocarcinomas. RBM10 plays a regulatory role in alternative splicing. Several recent studies not only linked this splicing regulation of RBM10 to cancer development, but also bridged RBM10's anticancer function to the p53 pathway. This review will focus on the current progress in our understanding of RBM10 regulation of p53, and its role in p53-dependent cancer prevention.
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MESH Headings
- Adenocarcinoma of Lung/genetics
- Adenocarcinoma of Lung/metabolism
- Adenocarcinoma of Lung/pathology
- Alternative Splicing
- Apoptosis/genetics
- Carcinoma, Pancreatic Ductal/genetics
- Carcinoma, Pancreatic Ductal/metabolism
- Carcinoma, Pancreatic Ductal/pathology
- Cell Cycle Checkpoints/genetics
- Cell Movement
- Cell Proliferation
- Cellular Senescence
- Cleft Palate/genetics
- Cleft Palate/metabolism
- Cleft Palate/pathology
- Colorectal Neoplasms/genetics
- Colorectal Neoplasms/metabolism
- Colorectal Neoplasms/pathology
- Gene Expression Regulation, Neoplastic
- Heart Defects, Congenital/genetics
- Heart Defects, Congenital/metabolism
- Heart Defects, Congenital/pathology
- Humans
- Neovascularization, Pathologic/genetics
- Neovascularization, Pathologic/metabolism
- Neovascularization, Pathologic/pathology
- RNA-Binding Proteins/genetics
- RNA-Binding Proteins/metabolism
- Signal Transduction
- Tumor Suppressor Protein p53/genetics
- Tumor Suppressor Protein p53/metabolism
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Affiliation(s)
- Ji Hoon Jung
- College of Korean Medicine, Kyung Hee University, Seoul 02447, Korea
- Correspondence: or (J.H.J.); (H.L.); Tel.: +82-10-961-9597 (J.H.J.); +1-504-988-5293 (H.L.)
| | - Hyemin Lee
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, New Orleans, LA 70112, USA; (H.L.); (S.X.Z.)
- Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Shelya X Zeng
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, New Orleans, LA 70112, USA; (H.L.); (S.X.Z.)
- Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Hua Lu
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, New Orleans, LA 70112, USA; (H.L.); (S.X.Z.)
- Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
- Correspondence: or (J.H.J.); (H.L.); Tel.: +82-10-961-9597 (J.H.J.); +1-504-988-5293 (H.L.)
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Wang H, Chen L, Zhou T, Zhang Z, Zeng C. Nicotine Promotes WRL68 Cells Proliferation Due to the Mutant p53 Gain-of-Function by Activating CDK6-p53-RS-PIN1-STAT1 Signaling Pathway. Chem Res Toxicol 2020; 33:2361-2373. [PMID: 32820905 DOI: 10.1021/acs.chemrestox.0c00119] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The liver is an important organ with many tasks, such as dealing with drugs, alcohol and other toxins to remove them from the body. Nicotine is the more abundant component in cigarette smoking, which is first metabolized in liver and increases the risk of developing hepatocellular carcinoma (HCC). Also, genotoxic potential of nicotine has been extensively studied in vitro. However, the carcinogenic action of nicotine on the HCC needs to be elucidated. The current study demonstrated that chronic exposure to nicotine significantly promotes human normal fetal hepatic cell line (WRL68 cells) proliferation in a time- and concentration-dependent manner resulting from G0/G1-S-phase transition. Also remarkably, nicotine induced the level of p53 mutation at Ser249 (p53-RS). Note as well that the level of STAT1 protein was increased along with p53-RS owing to the prolonged half-life of STAT1. Furthermore, it is suggested that CDK6-dependent binding between phosphorylation of p53-RS at Ser249 and PIN1 by nicotine treatment leads to the nucleus translocation, followed by interacting with STAT1 and subsequent activation of STAT1 via the improvement of its stability, which is involved in cellular growth and colony formation after nicotine treatment. Simply put, these findings indicated that nicotine induces mutant p53 gain-of function (GOF), activating CDK6-p53-RS-PIN1-STAT1 signaling pathway and promoting cell proliferation, which could contribute to HCC for smokers.
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Affiliation(s)
- Huai Wang
- School of Public Health, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, P. R. of China.,Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, P. R. of China
| | - Lu Chen
- Wuhan Taisheng Biological Technology Co., Ltd., No. 10 West Yezhihu Road, Wuhan, Hubei 430074, P. R. of China
| | - Tong Zhou
- School of Public Health, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, P. R. of China.,Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, P. R. of China
| | - Zhongwei Zhang
- School of Public Health, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, P. R. of China.,Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, P. R. of China
| | - Canwei Zeng
- Wuhan Taisheng Biological Technology Co., Ltd., No. 10 West Yezhihu Road, Wuhan, Hubei 430074, P. R. of China
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47
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Inactivating p53 is essential for nerve growth factor receptor to promote melanoma-initiating cell-stemmed tumorigenesis. Cell Death Dis 2020; 11:550. [PMID: 32686661 PMCID: PMC7371866 DOI: 10.1038/s41419-020-02758-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 07/03/2020] [Accepted: 07/06/2020] [Indexed: 12/19/2022]
Abstract
Nerve growth factor receptor (NGFR, CD271, or p75NTR) is highly expressed in melanoma-initiating cells (MICs) and is critical for their proliferation and tumorigenesis, and yet the underlying mechanism(s) remain incompletely understood. We previously showed that NGFR inhibits p53 activity in a negative feedback manner in various cancer cells. Here we report that this feedback inhibition of p53 by NGFR plays an essential role in maintaining the sphere formation (stem-like phenotype) and proliferation of MICs, and in promoting MIC-derived melanoma growth in vivo. Knockdown of NGFR markedly reduced the size and number of spheroid formation of melanoma cells, which can be rescued by ectopically expressed NGFR. This reduction was also reversed by depleting p53. Consistently, knockdown of NGFR led to the suppression of MIC-derived xenograft tumor growth by inducing the p53 pathway. These results demonstrate that the NGFR-p53 feedback loop is essential for maintaining MIC stem-like phenotype and MIC-derived tumorigenesis, and further validates NGFR as a potential target for developing a molecule-based therapy against melanoma.
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48
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Liu J, Zhang C, Hu W, Feng Z. Tumor suppressor p53 and metabolism. J Mol Cell Biol 2020; 11:284-292. [PMID: 30500901 PMCID: PMC6487777 DOI: 10.1093/jmcb/mjy070] [Citation(s) in RCA: 159] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 09/19/2018] [Accepted: 11/29/2018] [Indexed: 12/13/2022] Open
Abstract
p53 plays a key role in tumor suppression. The tumor suppressive function of p53 has long been attributed to its ability to induce apoptosis, cell cycle arrest, and senescence in cells. However, recent studies suggest that other functions of p53 also contribute to its role as a tumor suppressor, such as its function in metabolic regulation. p53 regulates various metabolic pathways to maintain the metabolic homeostasis of cells and adapt cells to stress. In addition, recent studies have also shown that gain-of-function (GOF) mutant p53 proteins drive metabolic reprogramming in cancer cells, contributing to cancer progression. Further understanding of p53 and its GOF mutants in metabolism will provide new opportunities for cancer therapy.
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Affiliation(s)
- Juan Liu
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers University, State University of New Jersey, New Brunswick, NJ, USA
| | - Cen Zhang
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers University, State University of New Jersey, New Brunswick, NJ, USA
| | - Wenwei Hu
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers University, State University of New Jersey, New Brunswick, NJ, USA.,Department of Pharmacology, Rutgers Cancer Institute of New Jersey, Rutgers University, State University of New Jersey, New Brunswick, NJ, USA
| | - Zhaohui Feng
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers University, State University of New Jersey, New Brunswick, NJ, USA.,Department of Pharmacology, Rutgers Cancer Institute of New Jersey, Rutgers University, State University of New Jersey, New Brunswick, NJ, USA
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49
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Hao Q, Chen Y, Zhou X. The Janus Face of p53-Targeting Ubiquitin Ligases. Cells 2020; 9:cells9071656. [PMID: 32660118 PMCID: PMC7407405 DOI: 10.3390/cells9071656] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/03/2020] [Accepted: 07/06/2020] [Indexed: 12/11/2022] Open
Abstract
The tumor suppressor p53 prevents tumorigenesis and cancer progression by maintaining genomic stability and inducing cell growth arrest and apoptosis. Because of the extremely detrimental nature of wild-type p53, cancer cells usually mutate the TP53 gene in favor of their survival and propagation. Some of the mutant p53 proteins not only lose the wild-type activity, but also acquire oncogenic function, namely “gain-of-function”, to promote cancer development. Growing evidence has revealed that various E3 ubiquitin ligases are able to target both wild-type and mutant p53 for degradation or inactivation, and thus play divergent roles leading to cancer cell survival or death in the context of different p53 status. In this essay, we reviewed the recent progress in our understanding of the p53-targeting E3 ubiquitin ligases, and discussed the potential clinical implications of these E3 ubiquitin ligases in cancer therapy.
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Affiliation(s)
- Qian Hao
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China;
| | - Yajie Chen
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China;
| | - Xiang Zhou
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China;
- Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China
- Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
- Correspondence: ; Tel.: +86-21-54237325
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50
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Nourbakhsh M, Farzaneh S, Taghikhani A, Zarghi A, Noori S. The Effect of a Newly Synthesized Ferrocene Derivative against MCF-7 Breast Cancer Cells and Spheroid Stem Cells through ROS Production and Inhibition of JAK2/STAT3 Signaling Pathway. Anticancer Agents Med Chem 2020; 20:875-886. [DOI: 10.2174/1871520620666200101151743] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 10/11/2019] [Accepted: 11/20/2019] [Indexed: 12/31/2022]
Abstract
Background:
Breast Cancer Stem Cells (BCSCs) possess the ability of self-renewal and cellular
heterogeneity, and therefore, play a key role in the initiation, propagation and clinical outcome of breast cancer.
It has been shown that ferrocene complexes have remarkable potential as anticancer drugs.
Objective:
The present study was conducted to investigate the effects of a novel ferrocene complex, 1-
ferrocenyl-3-(4-methylsulfonylphenyl)propen-1-one (FMSP) on MCF-7 breast cancer cell line and its derived
mammospheres with cancer stem cell properties.
Methods:
Mammospheres were developed from MCF-7 cells and validated by the evaluation of CD44 and
CD24 cell surface markers by flow cytometry as well as of the expression of genes that are associated with stem
cell properties by real-time PCR. Cells viability was assessed by a soluble tetrazolium salt (MTS) after the
treatment of cells with various concentrations of FMSP. Apoptosis was evaluated by flow cytometry analysis of
annexin V and PI labeling of cells. Reactive Oxygen Species (ROS) production was measured using a cellpermeable,
oxidant-sensitive fluorescence probe (carboxy-H2DCFDA). The involvement of the JAK2/STAT3
pathway was also investigated by western blotting.
Results:
FMSP could successfully prevent mammosphere formation from differentiated MCF-7 cells and significantly
down-regulated the expression of genes involved in the production of the stem cell properties including
Wnt1, Notch1, β -catenin, SOX2, CXCR4 and ALDH1A1. FMSP decreased cell viability in both MCF-7
cells and spheroid cells, although MCF-10A cells were unaffected by this compound. Apoptosis was also dramatically
induced by FMSP, via ROS production but independent of CD95 activation. Phosphorylation levels of
JAK2 and STAT3 were also found to be significantly attenuated even in the presence of IL-6, the putative activator
of the JAK/STAT pathway.
Conclusion:
FMSP can effectively target BCSCs via ROS production and modulation of major signaling pathways
that contribute to the stemness of breast cancer cells, and therefore, might be considered a promising anticancer
agent after in vivo studies.
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Affiliation(s)
- Mitra Nourbakhsh
- Department of Biochemistry, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Shabnam Farzaneh
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Adeleh Taghikhani
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Afshin Zarghi
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shokoofe Noori
- Department of Biochemistry, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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