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Zhong BH, Ma YT, Sun J, Tang JT, Dong M. Transcription factor FOXF2 promotes the development and progression of pancreatic cancer by targeting MSI2. Oncol Rep 2024; 52:93. [PMID: 38847273 PMCID: PMC11177171 DOI: 10.3892/or.2024.8752] [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: 01/11/2024] [Accepted: 05/10/2024] [Indexed: 06/16/2024] Open
Abstract
Pancreatic cancer (PC) is a malignant tumor possessing high mortality. The role of transcription factor Forkhead Box F2 (FOXF2) in PC remains unverified. The current study investigated the roles of FOXF2 in developing PC in vitro and in vivo. A xenograft tumor model was constructed with nude mice injected using FOXF2‑overexpressing PC cells or FOXF2‑silenced PC cells. High FOXF2 expression significantly enhanced the proliferation ability of PC cells in vitro and pancreatic tumor growth in vivo. The cell cycle analysis indicated that transition of G1‑S phase was promoted by FOXF2. The cell cycle‑associated proteins cyclin D1, CDK2, phosphorylated (p)‑CDK2 and p‑RB were upregulated in the FOXF2‑overexpressing cells and downregulated in the cells with FOXF2 knockdown. Flow cytometric analysis and Hoechst staining showed that the percentage of apoptotic cells was significantly increased after FOXF2 was silenced. FOXF2 knockdown promoted expression of pro‑apoptotic proteins (Bad, Bax and cleaved caspase‑3) while suppressing the anti‑apoptotic proteins (Bcl‑2 and Bcl‑xl) at the protein level. FOXF2 improved the migration and invasion of PC cells in vitro. Moreover, luciferase and chromatin immunoprecipitation assays revealed that FOXF2 binds to the MSI2 promoter, promoting its transcriptional expression. FOXF2 knockdown inhibited the MSI2 protein translation while enhancing the translation of NUMB protein, suppressing PC development in vivo. MSI2 silencing reversed the promotive effect mediated by FOXF2 on cell proliferation. These results demonstrated that FOXF2 is essential in PC progression, and the potential mechanism includes regulating MSI2 transcription.
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Affiliation(s)
- Bang-Hua Zhong
- Department of Gastrointestinal Surgery, The First Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Yu-Teng Ma
- Department of Gastrointestinal Surgery, The First Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Jian Sun
- Department of Gastrointestinal Surgery, The First Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Jing-Tong Tang
- Department of Gastrointestinal Surgery, The First Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Ming Dong
- Department of Gastrointestinal Surgery, The First Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
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2
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Liu C, Chen H, Cao S, Guo J, Liu Z, Long S. RNA-binding MSI proteins and their related cancers: A medicinal chemistry perspective. Bioorg Chem 2024; 143:107044. [PMID: 38134522 DOI: 10.1016/j.bioorg.2023.107044] [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: 09/07/2023] [Revised: 12/04/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023]
Abstract
Musashi1 and Musashi2 are RNA-binding proteins originally found in drosophila, in which they play a crucial developmental role. These proteins are pivotal in the maintenance and differentiation of stem cells in other organisms. Research has confirmed that the Musashi proteins are highly involved in cell signal-transduction pathways such as Notch and TGF-β. These signaling pathways are related to the induction and development of cancers, such as breast cancer, leukemia, hepatoma and liver cancer. In this review we focus on how Musashi proteins interact with molecules in different signaling pathways in various cancers and how they affect the physiological functions of these pathways. We further illustrate the status quo of Musashi proteins-targeted therapies and predict the target RNA regions that Musashi proteins interact with, in the hope of exploring the prospect of the design of Musashi protein-targeted medicines.
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Affiliation(s)
- Chenxin Liu
- Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Hubei Engineering Research Center for Advanced Fine Chemicals, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, 206 1(st) Rd Optics Valley, East Lake New Technology Development District, Wuhan, Hubei 430205, China
| | - Haiyan Chen
- Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Hubei Engineering Research Center for Advanced Fine Chemicals, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, 206 1(st) Rd Optics Valley, East Lake New Technology Development District, Wuhan, Hubei 430205, China
| | - Shuang Cao
- Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Hubei Engineering Research Center for Advanced Fine Chemicals, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, 206 1(st) Rd Optics Valley, East Lake New Technology Development District, Wuhan, Hubei 430205, China
| | - Ju Guo
- Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Hubei Engineering Research Center for Advanced Fine Chemicals, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, 206 1(st) Rd Optics Valley, East Lake New Technology Development District, Wuhan, Hubei 430205, China
| | - Ziwei Liu
- Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Hubei Engineering Research Center for Advanced Fine Chemicals, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, 206 1(st) Rd Optics Valley, East Lake New Technology Development District, Wuhan, Hubei 430205, China.
| | - Sihui Long
- Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Hubei Engineering Research Center for Advanced Fine Chemicals, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, 206 1(st) Rd Optics Valley, East Lake New Technology Development District, Wuhan, Hubei 430205, China.
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3
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He J, Yang L, Chang P, Yang S, Wang Y, Lin S, Tang Q, Zhang Y. Zika Virus Induces Degradation of the Numb Protein Required through Embryonic Neurogenesis. Viruses 2023; 15:1258. [PMID: 37376558 DOI: 10.3390/v15061258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/15/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023] Open
Abstract
Zika virus (ZIKV) is a mosquito-borne flavivirus and causes an infection associated with congenital Zika syndrome and Guillain-Barre syndrome. The mechanism of ZIKV-mediated neuropathogenesis is not well understood. In this study, we discovered that ZIKV induces degradation of the Numb protein, which plays a crucial role in neurogenesis by allowing asymmetric cell division during embryonic development. Our data show that ZIKV reduced the Numb protein level in a time- and dose-dependent manner. However, ZIKV infection appears to have minimal effect on the Numb transcript. Treatment of ZIKV-infected cells with a proteasome inhibitor restores the Numb protein level, which suggests the involvement of the ubiquitin-proteasome pathway. In addition, ZIKV infection shortens the half-life of the Numb protein. Among the ZIKV proteins, the capsid protein significantly reduces the Numb protein level. Immunoprecipitation of the Numb protein co-precipitates the capsid protein, indicating the interaction between these two proteins. These results provide insights into the ZIKV-cell interaction that might contribute to its impact on neurogenesis.
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Affiliation(s)
- Jia He
- Molecular Virology Laboratory, Department of Veterinary Medicine, University of Maryland, College Park, MD 20742, USA
| | - Liping Yang
- Molecular Virology Laboratory, Department of Veterinary Medicine, University of Maryland, College Park, MD 20742, USA
| | - Peixi Chang
- Molecular Virology Laboratory, Department of Veterinary Medicine, University of Maryland, College Park, MD 20742, USA
| | - Shixing Yang
- Molecular Virology Laboratory, Department of Veterinary Medicine, University of Maryland, College Park, MD 20742, USA
| | - Yu Wang
- Molecular Virology Laboratory, Department of Veterinary Medicine, University of Maryland, College Park, MD 20742, USA
| | - Shaoli Lin
- Molecular Virology Laboratory, Department of Veterinary Medicine, University of Maryland, College Park, MD 20742, USA
| | - Qiyi Tang
- Department of Microbiology, Howard University College of Medicine, Washington, DC 20059, USA
| | - Yanjin Zhang
- Molecular Virology Laboratory, Department of Veterinary Medicine, University of Maryland, College Park, MD 20742, USA
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Fito-Lopez B, Salvadores M, Alvarez MM, Supek F. Prevalence, causes and impact of TP53-loss phenocopying events in human tumors. BMC Biol 2023; 21:92. [PMID: 37095494 PMCID: PMC10127307 DOI: 10.1186/s12915-023-01595-1] [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: 11/23/2022] [Accepted: 04/12/2023] [Indexed: 04/26/2023] Open
Abstract
BACKGROUND TP53 is a master tumor suppressor gene, mutated in approximately half of all human cancers. Given the many regulatory roles of the corresponding p53 protein, it is possible to infer loss of p53 activity - which may occur due to alterations in trans - from gene expression patterns. Several such alterations that phenocopy p53 loss are known, however additional ones may exist, but their identity and prevalence among human tumors are not well characterized. RESULTS We perform a large-scale statistical analysis on transcriptomes of ~ 7,000 tumors and ~ 1,000 cell lines, estimating that 12% and 8% of tumors and cancer cell lines, respectively, phenocopy TP53 loss: they are likely deficient in the activity of the p53 pathway, while not bearing obvious TP53 inactivating mutations. While some of these cases are explained by amplifications in the known phenocopying genes MDM2, MDM4 and PPM1D, many are not. An association analysis of cancer genomic scores jointly with CRISPR/RNAi genetic screening data identified an additional common TP53-loss phenocopying gene, USP28. Deletions in USP28 are associated with a TP53 functional impairment in 2.9-7.6% of breast, bladder, lung, liver and stomach tumors, and have comparable effect size to MDM4 amplifications. Additionally, in the known copy number alteration (CNA) segment harboring MDM2, we identify an additional co-amplified gene (CNOT2) that may cooperatively boost the TP53 functional inactivation effect of MDM2. An analysis of cancer cell line drug screens using phenocopy scores suggests that TP53 (in)activity commonly modulates associations between anticancer drug effects and various genetic markers, such as PIK3CA and PTEN mutations, and should thus be considered as a drug activity modifying factor in precision medicine. As a resource, we provide the drug-genetic marker associations that differ depending on TP53 functional status. CONCLUSIONS Human tumors that do not bear obvious TP53 genetic alterations but that phenocopy p53 activity loss are common, and the USP28 gene deletions are one likely cause.
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Affiliation(s)
- Bruno Fito-Lopez
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute for Science and Technology (BIST), Barcelona, Spain
| | - Marina Salvadores
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute for Science and Technology (BIST), Barcelona, Spain
| | - Miguel-Martin Alvarez
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute for Science and Technology (BIST), Barcelona, Spain
| | - Fran Supek
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute for Science and Technology (BIST), Barcelona, Spain.
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain.
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5
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Ervin EH, French R, Chang CH, Pauklin S. Inside the stemness engine: Mechanistic links between deregulated transcription factors and stemness in cancer. Semin Cancer Biol 2022; 87:48-83. [PMID: 36347438 DOI: 10.1016/j.semcancer.2022.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 10/22/2022] [Accepted: 11/03/2022] [Indexed: 11/07/2022]
Abstract
Cell identity is largely determined by its transcriptional profile. In tumour, deregulation of transcription factor expression and/or activity enables cancer cell to acquire a stem-like state characterised by capacity to self-renew, differentiate and form tumours in vivo. These stem-like cancer cells are highly metastatic and therapy resistant, thus warranting a more complete understanding of the molecular mechanisms downstream of the transcription factors that mediate the establishment of stemness state. Here, we review recent research findings that provide a mechanistic link between the commonly deregulated transcription factors and stemness in cancer. In particular, we describe the role of master transcription factors (SOX, OCT4, NANOG, KLF, BRACHYURY, SALL, HOX, FOX and RUNX), signalling-regulated transcription factors (SMAD, β-catenin, YAP, TAZ, AP-1, NOTCH, STAT, GLI, ETS and NF-κB) and unclassified transcription factors (c-MYC, HIF, EMT transcription factors and P53) across diverse tumour types, thereby yielding a comprehensive overview identifying shared downstream targets, highlighting unique mechanisms and discussing complexities.
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Affiliation(s)
- Egle-Helene Ervin
- Botnar Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Old Road, Headington, Oxford, OX3 7LD, United Kingdom.
| | - Rhiannon French
- Botnar Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Old Road, Headington, Oxford, OX3 7LD, United Kingdom.
| | - Chao-Hui Chang
- Botnar Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Old Road, Headington, Oxford, OX3 7LD, United Kingdom.
| | - Siim Pauklin
- Botnar Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Old Road, Headington, Oxford, OX3 7LD, United Kingdom.
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6
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Jiang L, Xue S, Xu J, Fu X, Wei J, Zhang C. Prognostic value of Musashi 2 (MSI2) in cancer patients: A systematic review and meta-analysis. Front Oncol 2022; 12:969632. [PMID: 36530989 PMCID: PMC9751961 DOI: 10.3389/fonc.2022.969632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 11/02/2022] [Indexed: 11/10/2023] Open
Abstract
Musashi 2 (MSI2) is an RNA-binding protein that regulates mRNA translation of numerous intracellular targets and plays an important role in the development of cancer. However, the prognostic value of MSI2 in various cancers remains controversial. Herein, we conducted this meta-analysis including 21 studies with 2640 patients searched from PubMed, Web of Science, EMBASE, Chinese National Knowledge Infrastructure databases, and WanFang databases to accurately assess the prognostic significance of MSI2 in various cancers. Our results indicated that high MSI2 expression was significantly related to poor overall survival (HR = 1.84, 95% CI: 1.66-2.05, P < 0.001) and disease-free survival (HR = 1.73, 95% CI: 1.35-2.22, P < 0.001). In addition, MSI2 positive expression was associated with certain phenotypes of tumor aggressiveness, such as clinical stage, depth of invasion, lymph node metastasis, liver metastasis and tumor size. In conclusion, elevated MSI2 expression is closely correlated with poor prognosis in various cancers, and may serve as a potential molecular target for cancer patients.
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Affiliation(s)
- Lin Jiang
- Department of Anesthesiology, Taizhou People’s Hospital, Affiliated to Nanjing Medical University, Taizhou, Jiangsu, China
| | - Shanshan Xue
- Department of Clinical Laboratory, Taizhou People’s Hospital, Affiliated to Nanjing Medical University, Taizhou, Jiangsu, China
| | - Jie Xu
- The Center for Translational Medicine, Taizhou People’s Hospital, Affiliated to Nanjing Medical University, Taizhou, Jiangsu, China
| | - Xiaoyang Fu
- The Center for Translational Medicine, Taizhou People’s Hospital, Affiliated to Nanjing Medical University, Taizhou, Jiangsu, China
| | - Jing Wei
- Department of Obstetrics and Gynecology, Taizhou People’s Hospital, Affiliated to Nanjing Medical University, Taizhou, Jiangsu, China
| | - Chuanmeng Zhang
- The Center for Translational Medicine, Taizhou People’s Hospital, Affiliated to Nanjing Medical University, Taizhou, Jiangsu, China
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7
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[Advances in research of Musashi2 in solid tumors]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2022; 42:448-456. [PMID: 35426812 PMCID: PMC9010998 DOI: 10.12122/j.issn.1673-4254.2022.03.20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
RNA binding protein (RBP) plays a key role in gene regulation and participate in RNA translation, modification, splicing, transport and other important biological processes. Studies have shown that abnormal expression of RBP is associated with a variety of diseases. The Musashi (Msi) family of mammals is an evolutionarily conserved and powerful RBP, whose members Msi1 and Msi2 play important roles in the regulation of stem cell activity and tumor development. The Msi family members regulate a variety of biological processes by binding and regulating mRNA translation, stability and downstream cell signaling pathways, and among them, Msi2 is closely related to embryonic growth and development, maintenance of tumor stem cells and development of hematological tumors. Accumulating evidence has shown that Msi2 also plays a crucial role in the development of solid tumors, mainly by affecting the proliferation, invasion, metastasis and drug resistance of tumors, involving Wnt/β-catenin, TGF-β/SMAD3, Akt/mTOR, JAK/STAT, Numb and their related signaling pathways (Notch, p53, and Hedgehog pathway). Preclinical studies of Msi2 gene as a therapeutic target for tumor have achieved preliminary results. This review summarizes the molecular structure, physiological function, role of Msi2 in the development and progression of various solid tumors and the signaling pathways involved.
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8
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Sheng W, Tang J, Cao R, Shi X, Ma Y, Dong M. Numb-PRRL promotes TGF-β1- and EGF-induced epithelial-to-mesenchymal transition in pancreatic cancer. Cell Death Dis 2022; 13:173. [PMID: 35197444 PMCID: PMC8866481 DOI: 10.1038/s41419-022-04609-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 01/18/2022] [Accepted: 02/01/2022] [Indexed: 01/10/2023]
Abstract
Isoform-specific functions of Numb in the development of cancers, especially in the initiation of epithelial-to-mesenchymal transition (EMT) remains controversial. We study the specific function of Numb-PRRL isoform in activated EMT of pancreatic ductal adenocarcinoma (PC), which is distinguished from our previous studies that only focused on the total Numb protein. Numb-PRRL isoform was specifically overexpressed and silenced in PC cells combining with TGF-β1 and EGF stimulus. We systematically explored the potential effect of Numb-PRRL in the activated EMT of PC in vitro and in vivo. The total Numb protein was overexpressed in the normal pancreatic duct and well-differentiated PC by IHC. However, Numb-PRRS isoform but not Numb-PRRL showed dominant expression in PC tissues. Numb-PRRL overexpression promoted TGF-β1-induced EMT in PANC-1 and Miapaca-2 cells. TGF-β1-induced EMT-like cell morphology, cell invasion, and migration were enhanced in Numb-PRRL overexpressing groups following the increase of N-cadherin, Vimentin, Smad2/3, Snail1, Snail2, and cleaved-Notch1 and the decrease of E-cadherin. Numb-PRRL overexpression activated TGFβ1-Smad2/3-Snail1 signaling was significantly reversed by the Notch1 inhibitor RO4929097. Conversely, Numb-PRRL silencing inhibited EGF-induced EMT in AsPC-1 and BxPC-3 cells following the activation of EGFR-ERK/MAPK signaling via phosphorylating EGFR at tyrosine 1045. In vivo, Numb-PRRL overexpression or silencing promoted or inhibited subcutaneous tumor size and distant liver metastases via regulating EMT and Snail signaling, respectively. Numb-PRRL promotes TGF-β1- and EGF-induced EMT in PC by regulating TGF-β1-Smad2/3-Snail and EGF-induced EGFR-ERK/MAPK signaling.
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Affiliation(s)
- Weiwei Sheng
- Department of Gastrointestinal Surgery, The First Hospital, China Medical University, 110001, Shenyang, Liaoning, China
| | - Jingtong Tang
- Department of Gastrointestinal Surgery, The First Hospital, China Medical University, 110001, Shenyang, Liaoning, China
| | - Rongxian Cao
- Department of Gastrointestinal Surgery, The First Hospital, China Medical University, 110001, Shenyang, Liaoning, China
| | - Xiaoyang Shi
- Department of Hernia and Abdominal Wall Surgery, Chaoyang Hospital, 100043, Beijing, China
| | - Yuteng Ma
- Department of Gastrointestinal Surgery, The First Hospital, China Medical University, 110001, Shenyang, Liaoning, China
| | - Ming Dong
- Department of Gastrointestinal Surgery, The First Hospital, China Medical University, 110001, Shenyang, Liaoning, China.
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9
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Chen B, Deng T, Deng L, Yu H, He B, Chen K, Zheng C, Wang D, Wang Y, Chen G. Identification of tumour immune microenvironment-related alternative splicing events for the prognostication of pancreatic adenocarcinoma. BMC Cancer 2021; 21:1211. [PMID: 34772375 PMCID: PMC8590242 DOI: 10.1186/s12885-021-08962-7] [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: 07/29/2021] [Accepted: 11/01/2021] [Indexed: 11/10/2022] Open
Abstract
PURPOSE Pancreatic adenocarcinoma (PAAD) is characterized by low antitumour immune cell infiltration in an immunosuppressive microenvironment. This study aimed to systematically explore the impact on prognostic alternative splicing events (ASs) of tumour immune microenvironment (TIME) in PAAD. METHODS The ESTIMATE algorithm was implemented to compute the stromal/immune-related scores of each PAAD patient, followed by Kaplan-Meier (KM) survival analysis of patients with different scores grouped by X-tile software. TIME-related differentially expressed ASs (DEASs) were determined and evaluated through functional annotation analysis. In addition, Cox analyses were implemented to construct a TIME-related signature and an AS clinical nomogram. Moreover, comprehensive analyses, including gene set enrichment analysis (GSEA), immune infiltration, immune checkpoint gene expression, and tumour mutation were performed between the two risk groups to understand the potential mechanisms. Finally, Cytoscape was implemented to illuminate the AS-splicing factor (SF) regulatory network. RESULTS A total of 437 TIME-related DEASs significantly related to PAAD tumorigenesis and the formation of the TIME were identified. Additionally, a robust TIME-related prognostic signature based on seven DEASs was generated, and an AS clinical nomogram combining the signature and four clinical predictors also exhibited prominent discrimination by ROC (0.762 ~ 0.804) and calibration curves. More importantly, the fractions of CD8 T cells, regulatory T cells and activated memory CD4 T cells were lower, and the expression of four immune checkpoints-PD-L1, CD47, CD276, and PVR-was obviously higher in high-risk patients. Finally, functional analysis and tumour mutations revealed that aberrant immune signatures and activated carcinogenic pathways in high-risk patients may be the cause of the poor prognosis. CONCLUSION We extracted a list of DEASs associated with the TIME through the ESTIMATE algorithm and constructed a prognostic signature on the basis of seven DEASs to predict the prognosis of PAAD patients, which may guide advanced decision-making for personalized precision intervention.
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Affiliation(s)
- Bo Chen
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Tuo Deng
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Liming Deng
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Haitao Yu
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Bangjie He
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Kaiyu Chen
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chongming Zheng
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Daojie Wang
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yi Wang
- Division of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou, China.
| | - Gang Chen
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China. .,Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
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10
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Veronez LC, das Chagas PF, Corrêa CAP, Baroni M, da Silva KR, Nagano LF, Borges KS, Queiroz RGP, Tone LG, Scrideli CA. MSI2 expression in adrenocortical carcinoma: Association with unfavorable prognosis and correlation with steroid and immune-related pathways. J Cell Biochem 2021; 122:1925-1935. [PMID: 34581457 DOI: 10.1002/jcb.30153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/23/2021] [Accepted: 09/09/2021] [Indexed: 11/06/2022]
Abstract
Adrenocortical carcinoma (ACC) is a rare, but highly aggressive cancer of the adrenal cortex with a generally poor prognosis. Despite being rare, completely resected ACCs present a high risk of recurrence. Musashi-2 (MSI2) has recently been recognized as a potential prognostic biomarker and therapeutic target in many cancers. However, no studies have evaluated the clinical significance of MSI2 expression in ACC. Here, we addressed MSI2 expression and its association with ACC prognosis and clinicopathological parameters. MSI2 expression was analyzed in TCGA, GSE12368, GSE33371, and GSE49278 ACC datasets; and its correlation with other genes and immune cell infiltration were investigated by using the R2: Genomics Analysis and Visualization Platform and TIMER databases, respectively. Enrichment analysis was performed with the DAVID Functional Annotation Tool. Kaplan-Meier curves, log-rank tests, and Cox regression analyses were used to explore the prognostic role of MSI2 in ACC. Our findings demonstrated the potential value of MSI2 overexpression as an independent predictor of poor prognosis in patients with completely resected ACC (hazard ratio 6.715, 95% confidence interval 1.266 - 35.620, p =.025). In addition, MSI2 overexpression was associated with characteristics of unfavorable prognosis, such as cortisol excess (p = .002), recurrence (p =.003), and death (p =.015); positively correlated with genes related to steroid biosynthesis (p < .05); and negatively correlated with immune-related pathways (p < .05). Our findings demonstrate that MSI2 has value as a prognostic marker for completely resected ACC and reinforce the investigation of its role as a possible therapeutic target for patients with ACC.
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Affiliation(s)
- Luciana C Veronez
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Pablo F das Chagas
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Carolina A P Corrêa
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Mirella Baroni
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Keteryne R da Silva
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Luis F Nagano
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Kleiton S Borges
- Division of Endocrinology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Rosane G P Queiroz
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Luiz G Tone
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Carlos A Scrideli
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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11
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Sun J, Sheng W, Ma Y, Dong M. Potential Role of Musashi-2 RNA-Binding Protein in Cancer EMT. Onco Targets Ther 2021; 14:1969-1980. [PMID: 33762829 PMCID: PMC7982713 DOI: 10.2147/ott.s298438] [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: 12/21/2020] [Accepted: 02/22/2021] [Indexed: 12/20/2022] Open
Abstract
Local invasion and distant metastasis are the key hallmarks in the aggressive progression of malignant tumors, including the ability of cancer cells to detach from the extracellular matrix overcome apoptosis, and disseminate into distant sites. It is generally believed that this malignant behavior is stimulated by epithelial-mesenchymal transition (EMT). Musashi (MSI) RNA-binding proteins, belonging to the evolutionarily conserved RNA-binding proteins (RBP) family, were originally discovered to regulate asymmetric cell division during embryonic development. Recently, Musashi-2 (MSI2), as a key member of MSI family, has been prevalently reported to be tightly associated with the advanced clinical stage of several cancers. Multiple oncogenic signaling pathways mediated by MSI2 play vital roles in EMT. Here, we systematically reviewed the detailed role and signal networks of MSI2 in regulating cancer development, especially in EMT signal transduction, involving EGF, TGF-β, Notch, and Wnt pathways.
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Affiliation(s)
- Jian Sun
- Department of Gastrointestinal Surgery, The First Hospital, China Medical University, Shenyang, 110001, People's Republic of China
| | - Weiwei Sheng
- Department of Gastrointestinal Surgery, The First Hospital, China Medical University, Shenyang, 110001, People's Republic of China
| | - Yuteng Ma
- Department of Gastrointestinal Surgery, The First Hospital, China Medical University, Shenyang, 110001, People's Republic of China
| | - Ming Dong
- Department of Gastrointestinal Surgery, The First Hospital, China Medical University, Shenyang, 110001, People's Republic of China
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12
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Wang S, Wang T, Wang L, Zhong L, Li K. Overexpression of RNF126 Promotes the Development of Colorectal Cancer via Enhancing p53 Ubiquitination and Degradation. Onco Targets Ther 2020; 13:10917-10929. [PMID: 33149608 PMCID: PMC7604871 DOI: 10.2147/ott.s271855] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 09/27/2020] [Indexed: 12/23/2022] Open
Abstract
Background RING finger protein 126 (RNF126), as a novel E3 ubiquitin ligase, plays an oncogenic role in several solid cancers. But its potential role in colorectal cancer (CRC) that harbored 50% mutant p53, to our knowledge, is rarely reported. Materials and Methods We investigated the clinical significance and relationship of RNF126 and p53 in CRC tissues and cells. Meanwhile, WB, qRT-PCR, co-IP, MTT, and transwell were used to investigate the function and molecular mechanism of RNF126 in regulating malignant biology in vitro. Results RNF126 was overexpressed in human CRC specimens, which was tightly associated with tumor size (P=0.021), T stage (P=0.030), lymph node metastasis (P=0.006), TNM stage (P=0.001), and the poor survival (P=0.003) of CRC patients. RNF126 had no association with p53 mutation in CRC specimens, and in p53 mutant Colo-205 and SW620 cells. However, in p53 wildtype HCT116 and HCT-8 cells, RNF126 silencing upregulated p53 and p21 but inhibited Rb phosphorylation at Serine 780 (pRb), which was inhibited by p53siRNA. Conversely, RNF126 overexpression downregulated p53 and p21 but promoted pRb expression, which was reversed by a classic proteasome inhibitor, MG132. However, the mRNA levels of above target genes were unchanged, implying a ubiquitination dependent post-translational modification involving in above regulation. Meanwhile, RNF126 was co-immunoprecipitated with p53 and p21 to form a triple complex. RNF126 silencing and overexpression inhibited and promoted p53 ubiquitination and degradation in vitro, respectively. In addition, p53siRNA reversed RNF126 silencing-inhibited cell proliferation, drug resistance, and cell mobility in HCT116 cells. Conversely, MG132 inhibited RNF126 overexpression-promoted above cell biology in HCT-8 cells. Conclusion Overexpression of RNF126 was remarkably associated with multiple advanced clinical characters of CRC patients independent of mutant p53. RNF126 promotes cell proliferation, mobility, and drug resistance in CRC via enhancing p53 ubiquitination and degradation.
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Affiliation(s)
- Shiyang Wang
- Department of Geriatric Surgery, The First Hospital, China Medical University, Shenyang 110001, People's Republic of China.,Department of Surgical Oncology, The First Hospital, China Medical University, Shenyang 110001, People's Republic of China
| | - Tianlong Wang
- Department of Geriatric Surgery, The First Hospital, China Medical University, Shenyang 110001, People's Republic of China
| | - Li Wang
- Department of Geriatric Surgery, The First Hospital, China Medical University, Shenyang 110001, People's Republic of China
| | - Liansheng Zhong
- Department of Bioinformatics, College of Life Science, China Medical University, Shenyang 110001, People's Republic of China
| | - Kai Li
- Department of Surgical Oncology, The First Hospital, China Medical University, Shenyang 110001, People's Republic of China
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13
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RNA-binding protein Musashi2 regulates Hippo signaling via SAV1 and MOB1 in pancreatic cancer. Med Oncol 2020; 37:84. [PMID: 32780197 DOI: 10.1007/s12032-020-01384-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 06/02/2020] [Indexed: 10/23/2022]
Abstract
Musashi 2 (MSI2), a member of the Musashi RNA-binding family, is reported to be an oncoprotein in pancreatic ductal adenocarcinoma (PDAC), but the mechanisms of MSI2 in the development and progression of PDAC have not been fully demonstrated. In this research, we studied the clinical significance, biologic effects and the underlying mechanism of MSI2 in the progression of PDAC. The expression of MSI2, Mps-binding protein 1 (MOB1) and Salvador family WW domain-containing protein 1 (SAV1) in PDAC tissues were analyzed immunohistochemically. The biologic effects of MSI2 regarding PDAC cell proliferation, migration and invasion were studied using gain- and loss-of-function assays. MSI2 regulated Hippo signaling pathway via SAV1 and MOB1 was tested in several PDAC cell lines, and the mechanisms were studied using molecular biologic methods. The expression of MSI2 was significantly increased in PDAC cell lines and tissues, and positively associated with tumor poorer differentiation, lymph nodes metastasis and TNM stages. Overexpression of MSI2 promoted PDAC cells proliferation, migration and invasion. Further studies demonstrated that MSI2 regulated the Hippo signaling pathway via directly binding to the mRNAs of SAV1 and MOB1, and controlled the translation and stability of SAV1 and the translation of MOB1. This study demonstrated that MSI2 regulated the Hippo signaling pathway via suppressing SAV1 and MOB1 at post-transcriptional level and promoted PDAC progression.
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14
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Zhou L, Sheng W, Jia C, Shi X, Cao R, Wang G, Lin Y, Zhu F, Dong Q, Dong M. Musashi2 promotes the progression of pancreatic cancer through a novel ISYNA1-p21/ZEB-1 pathway. J Cell Mol Med 2020; 24:10560-10572. [PMID: 32779876 PMCID: PMC7521282 DOI: 10.1111/jcmm.15676] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 06/03/2020] [Accepted: 06/16/2020] [Indexed: 12/13/2022] Open
Abstract
Our previous studies found overexpression of Musashi2 (MSI2) conduced to the progression and chemoresistance of pancreatic cancer (PC) by negative regulation of Numb and wild type p53 (wtp53). Now, we further investigated the novel signalling involved with MSI2 in PC. We identified inositol‐3‐phosphate synthase 1 (ISYNA1) as a novel tumour suppressor regulated by MSI2. High MSI2 and low ISYNA1 expression were prevalently observed in 91 PC tissues. ISYNA1 expression was negatively correlated with MSI2 expression, T stage, vascular permeation and poor prognosis in PC patients. What's more, patients expressed high MSI2 and low ISYNA1 level had a significant worse prognosis. And in wtp53 Capan‐2 and SW1990 cells, ISYNA1 was downregulated by p53 silencing. ISYNA1 silencing promoted cell proliferation and cell cycle by inhibiting p21 and enhanced cell migration and invasion by upregulating ZEB‐1. However, MSI2 silencing upregulated ISYNA1 and p21 but downregulated ZEB‐1, which can be rescued by ISYNA1 silencing. Moreover, reduction of cell migration and invasion resulting from MSI2 silencing was significantly reversed by ISYNA1 silencing. In summary, MSI2 facilitates the development of PC through a novel ISYNA1‐p21/ZEB‐1 pathway, which provides new gene target therapy for PC.
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Affiliation(s)
- Lei Zhou
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - WeiWei Sheng
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - Chao Jia
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - Xiaoyang Shi
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - Rongxian Cao
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - Guosen Wang
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - Yiheng Lin
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - Fang Zhu
- Division of Cardiology, The People's Hospital of Liaoning Province, Shenyang, China
| | - Qi Dong
- Department of General Surgery, The People's Hospital of Liaoning Province, Shenyang, China
| | - Ming Dong
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
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15
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Luo Y, Schofield JA, Simon MD, Slavoff SA. Global Profiling of Cellular Substrates of Human Dcp2. Biochemistry 2020; 59:4176-4188. [PMID: 32365300 DOI: 10.1021/acs.biochem.0c00069] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Decapping is the first committed step in 5'-to-3' RNA decay, and in the cytoplasm of human cells, multiple decapping enzymes regulate the stabilities of distinct subsets of cellular transcripts. However, the complete set of RNAs regulated by any individual decapping enzyme remains incompletely mapped, and no consensus sequence or property is currently known to unambiguously predict decapping enzyme substrates. Dcp2 was the first-identified and best-studied eukaryotic decapping enzyme, but it has been shown to regulate the stability of <400 transcripts in mammalian cells to date. Here, we globally profile changes in the stability of the human transcriptome in Dcp2 knockout cells via TimeLapse-seq. We find that P-body enrichment is the strongest correlate of Dcp2-dependent decay and that modification with m6A exhibits an additive effect with P-body enrichment for Dcp2 targeting. These results are consistent with a model in which P-bodies represent sites where translationally repressed transcripts are sorted for decay by soluble cytoplasmic decay complexes through additional molecular marks.
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Affiliation(s)
- Yang Luo
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States.,Chemical Biology Institute, Yale University, West Haven, Connecticut 06516, United States
| | - Jeremy A Schofield
- Chemical Biology Institute, Yale University, West Haven, Connecticut 06516, United States.,Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut 06529, United States
| | - Matthew D Simon
- Chemical Biology Institute, Yale University, West Haven, Connecticut 06516, United States.,Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut 06529, United States
| | - Sarah A Slavoff
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States.,Chemical Biology Institute, Yale University, West Haven, Connecticut 06516, United States.,Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut 06529, United States
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16
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Sheng W, Shi X, Lin Y, Tang J, Jia C, Cao R, Sun J, Wang G, Zhou L, Dong M. Musashi2 promotes EGF-induced EMT in pancreatic cancer via ZEB1-ERK/MAPK signaling. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2020; 39:16. [PMID: 31952541 PMCID: PMC6967093 DOI: 10.1186/s13046-020-1521-4] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 01/06/2020] [Indexed: 12/19/2022]
Abstract
Background Our previous study showed Musashi2 (MSI2) promoted chemotherapy resistance and pernicious biology of pancreatic cancer (PC) by down-regulating Numb and p53. We further explored the novel molecular mechanism involving its oncogenic role in PC development. Methods We investigated the potential role and mechanism of MSI2 in EGF-induced EMT in PC in vitro and vivo. Results EGF enhanced EGFR (epidermal growth factor receptor) phosphorylation, induced EMT and activated ZEB1-ERK/MAPK signaling in 2 PC cells. However, MSI2 silencing reversed EGF stimulated function, including inhibiting EGF-promoted EMT-like cell morphology and EGF-enhanced cell invasion and migration. Meanwhile, MSI2 silencing inhibited EGF-enhanced EGFR phosphorylation at tyrosine 1068 and reversed EGF-induced change of the key proteins in EMT and ZEB1-ERK/MAPK signaling (ZEB1, E-cad, ZO-1, β-catenin, pERK and c-Myc). Additionally, MSI2 was co-stained and co-immunoprecipitated with ZEB1, pERK and c-Myc in PC cells by IF and co-IP, implying a close interaction between them. In vivo, MSI2 silencing inhibited pancreatic tumor size in situ and distant liver metastases. A close relationship of MSI2 with EMT and ZEB1-ERK/MAPK signaling were also observed in vivo and human PC samples, which coordinately promoted the poor prognosis of PC patients. Conclusions MSI2 promotes EGF-induced EMT in PC via ZEB1-ERK/MAPK signaling.
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Affiliation(s)
- Weiwei Sheng
- Department of Gastrointestinal Surgery, the First Hospital, China Medical University, Shenyang, 110001, China
| | - Xiaoyang Shi
- Department of Gastrointestinal Surgery, the First Hospital, China Medical University, Shenyang, 110001, China
| | - Yiheng Lin
- Department of Gastrointestinal Surgery, the First Hospital, China Medical University, Shenyang, 110001, China
| | - Jingtong Tang
- Department of Gastrointestinal Surgery, the First Hospital, China Medical University, Shenyang, 110001, China
| | - Chao Jia
- Department of Gastrointestinal Surgery, the First Hospital, China Medical University, Shenyang, 110001, China
| | - Rongxian Cao
- Department of General Surgery, the People's Hospital of Liaoning province, Shenyang, 110034, China
| | - Jian Sun
- Department of Gastrointestinal Surgery, the First Hospital, China Medical University, Shenyang, 110001, China
| | - Guosen Wang
- Department of General Surgery, the First Hospital of Nanchang University, NanChang, 330006, China
| | - Lei Zhou
- Department of General Surgery, the Central Hospital of JingZhou City, JingZhou, 434020, China
| | - Ming Dong
- Department of Gastrointestinal Surgery, the First Hospital, China Medical University, Shenyang, 110001, China.
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17
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Zhao J, Zhang Y, Liu XS, Zhu FM, Xie F, Jiang CY, Zhang ZY, Gao YL, Wang YC, Li B, Xia SJ, Han BM. RNA-binding protein Musashi2 stabilizing androgen receptor drives prostate cancer progression. Cancer Sci 2020; 111:369-382. [PMID: 31833612 PMCID: PMC7004550 DOI: 10.1111/cas.14280] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 11/24/2019] [Accepted: 12/05/2019] [Indexed: 12/17/2022] Open
Abstract
The androgen receptor (AR) pathway is critical for prostate cancer carcinogenesis and development; however, after 18‐24 months of AR blocking therapy, patients invariably progress to castration‐resistant prostate cancer (CRPC), which remains an urgent problem to be solved. Therefore, finding key molecules that interact with AR as novel strategies to treat prostate cancer and even CRPC is desperately needed. In the current study, we focused on the regulation of RNA‐binding proteins (RBPs) associated with AR and determined that the mRNA and protein levels of AR were highly correlated with Musashi2 (MSI2) levels. MSI2 was upregulated in prostate cancer specimens and significantly correlated with advanced tumor grades. Downregulation of MSI2 in both androgen sensitive and insensitive prostate cancer cells inhibited tumor formation in vivo and decreased cell growth in vitro, which could be reversed by AR overexpression. Mechanistically, MSI2 directly bound to the 3′‐untranslated region (UTR) of AR mRNA to increase its stability and, thus, enhanced its transcriptional activity. Our findings illustrate a previously unknown regulatory mechanism in prostate cancer cell proliferation regulated by the MSI2‐AR axis and provide novel evidence towards a strategy against prostate cancer.
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Affiliation(s)
- Jing Zhao
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu Zhang
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xi-Sheng Liu
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fang-Ming Zhu
- Unit of Molecular Immunology, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Feng Xie
- Unit of Molecular Immunology, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chen-Yi Jiang
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zi-Ye Zhang
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,First Clinical Medical College of Nanjing Medical University, Jiangsu, China
| | - Ying-Li Gao
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yong-Chuan Wang
- Department of Urology, Weifang Traditional Chinese Medicine Hospital, Shandong, China
| | - Bin Li
- Unit of Molecular Immunology, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shu-Jie Xia
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Institute of Urology, Shanghai Jiao Tong University, Shanghai, China
| | - Bang-Min Han
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Institute of Urology, Shanghai Jiao Tong University, Shanghai, China
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18
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Wang X, Wang R, Bai S, Xiong S, Li Y, Liu M, Zhao Z, Wang Y, Zhao Y, Chen W, Billiar TR, Cheng B. Musashi2 contributes to the maintenance of CD44v6+ liver cancer stem cells via notch1 signaling pathway. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:505. [PMID: 31888685 PMCID: PMC6936093 DOI: 10.1186/s13046-019-1508-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 12/16/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Liver cancer stem cells (LCSCs) contribute to hepatocellular carcinoma (HCC) development, metastasis, and drug resistance. MSI2 and Notch1 signaling are involved in the maintenance of CSCs. However, it is unknown whether MSI2 and Notch1 are involved in the maintenance of CD44v6+ LCSCs. Therefore, we investigated the clinical significance and function of MSI2 and its relationship with Notch1 signaling in the maintenance of stemness properties in CD44v6+ LCSCs. METHODS The expression of MSI2 and CD44v6 were detected by fresh specimens and a HCC tissue microarray. The tissue microarray containing 82 HCC samples was used to analyze the correlation between CD44v6 and MSI2. CD44v6+/- cells were isolated using microbeads sorting. We explored the roles of MSI2 and Notch1 signaling in CD44v6+ LCSCs by sphere formation assay, transwell assay, clone formation assay in vitro, and xenograft tumor models in vivo. A Notch RT2 PCR Array, Co-immunoprecipitation, and RNA-immunoprecipitation were used to further investigate the molecular mechanism of MSI2 in activating Notch1 signaling. RESULTS Here, we found MSI2 expression was positively correlated with high CD44v6 expression in HCC tissues, and further correlated with tumor differentiation. CD44v6+ cells isolated from HCC cell lines exhibited increased self-renewal, proliferation, migration and invasion, resistance to Sorafenib and tumorigenic capacity. Both MSI2 and Notch1 signaling were elevated in sorted CD44v6+ cells than CD44v6- cells and played essential roles in the maintenance of stemness of CD44v6+ LCSCs. Mechanically, MSI2 directly bound to Lunatic fringe (LFNG) mRNA and protein, resulting in Notch1 activation. CONCLUSIONS Our results demonstrated that MSI2 maintained the stemness of CD44v6+ LCSCs by activating Notch1 signaling through the interaction with LFNG, which could be a potential molecular target for stem cell-targeted therapy for liver cancer.
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Affiliation(s)
- Xiju Wang
- Department of Gastroenterology and Hepatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China, 430030
| | - Ronghua Wang
- Department of Gastroenterology and Hepatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China, 430030
| | - Shuya Bai
- Department of Gastroenterology and Hepatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China, 430030
| | - Si Xiong
- Department of Gastroenterology and Hepatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China, 430030
| | - Yawen Li
- Department of Gastroenterology and Hepatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China, 430030
| | - Man Liu
- Department of Gastroenterology and Hepatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China, 430030
| | - Zhenxiong Zhao
- Department of Gastroenterology and Hepatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China, 430030
| | - Yun Wang
- Department of Gastroenterology and Hepatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China, 430030
| | - Yuchong Zhao
- Department of Gastroenterology and Hepatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China, 430030
| | - Wei Chen
- Department of Gastroenterology and Hepatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China, 430030
| | - Timothy R Billiar
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Bin Cheng
- Department of Gastroenterology and Hepatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China, 430030.
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19
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Mohibi S, Chen X, Zhang J. Cancer the'RBP'eutics-RNA-binding proteins as therapeutic targets for cancer. Pharmacol Ther 2019; 203:107390. [PMID: 31302171 DOI: 10.1016/j.pharmthera.2019.07.001] [Citation(s) in RCA: 119] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 07/02/2019] [Indexed: 12/11/2022]
Abstract
RNA-binding proteins (RBPs) play a critical role in the regulation of various RNA processes, including splicing, cleavage and polyadenylation, transport, translation and degradation of coding RNAs, non-coding RNAs and microRNAs. Recent studies indicate that RBPs not only play an instrumental role in normal cellular processes but have also emerged as major players in the development and spread of cancer. Herein, we review the current knowledge about RNA binding proteins and their role in tumorigenesis as well as the potential to target RBPs for cancer therapeutics.
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Affiliation(s)
- Shakur Mohibi
- Comparative Oncology Laboratory, Schools of Veterinary Medicine and Medicine, University of California at Davis, United States
| | - Xinbin Chen
- Comparative Oncology Laboratory, Schools of Veterinary Medicine and Medicine, University of California at Davis, United States
| | - Jin Zhang
- Comparative Oncology Laboratory, Schools of Veterinary Medicine and Medicine, University of California at Davis, United States.
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20
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Li N, Zhu Y. Targeting liver cancer stem cells for the treatment of hepatocellular carcinoma. Therap Adv Gastroenterol 2019; 12:1756284818821560. [PMID: 30719075 PMCID: PMC6348509 DOI: 10.1177/1756284818821560] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 11/15/2018] [Indexed: 02/04/2023] Open
Abstract
Liver cancer is one of the most common malignant tumors and prognosis remains poor. It has been increasingly recognized that liver cancer stem cells (LCSCs) are responsible for the carcinogenesis, recurrence, metastasis and chemoresistance of hepatocellular carcinoma (HCC). Targeting LCSCs is promising to be a new direction for the treatment of HCC. Herein, we summarize the potentially therapeutic targets in LCSCs at the level of genes, molecules and cells, such as knockout of oncogenes or oncoproteins, restoring the silent tumor suppressor genes, inhibition of the transcription factors and regulation of noncoding RNAs (including microRNAs and long noncoding RNAs) in LCSCs at the genetic level; inhibition of markers and blockade of the key signaling pathways of LCSCs at the molecular level; and inhibiting autophagy and application of oncolytic adenoviruses in LCSCs at the cellular level. Moreover, we analyze the potential targets in LCSCs to eliminate chemoresistance of HCC. Thereinto, the suppression of autophagy and Nanog by chloroquine and shRNA respectively may be the most promising targeting approaches. These targets may provide novel therapeutic strategies for the treatment of HCC by targeting LCSCs.
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Affiliation(s)
- Na Li
- The First Affiliated Hospital of Dalian Medical University, Dalian, China
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21
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Abstract
Although we have come a long way in our understanding of the signals that drive cancer growth, and how these signals can be targeted, effective control of this disease remains a key scientific and medical challenge. The therapy resistance and relapse that are commonly seen are driven in large part by the inherent heterogeneity within cancers that allows drugs to effectively eliminate some, but not all, malignant cells. Here, we focus on the fundamental drivers of this heterogeneity by examining emerging evidence that shows that these traits are often controlled by the disruption of normal cell fate and aberrant adoption of stem cell signals. We discuss how undifferentiated cells are preferentially primed for transformation and often serve as the cell of origin for cancers. We also consider evidence showing that activation of stem cell programmes in cancers can lead to progression, therapy resistance and metastatic growth and that targeting these attributes may enable better control over a difficult disease.
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Affiliation(s)
- Nikki K Lytle
- Departments of Pharmacology and Medicine, San Diego School of Medicine, University of California, La Jolla, CA, USA
- Sanford Consortium for Regenerative Medicine, San Diego School of Medicine, University of California, La Jolla, CA, USA
- Moores Cancer Center, San Diego School of Medicine, University of California, La Jolla, CA, USA
| | - Alison G Barber
- Departments of Pharmacology and Medicine, San Diego School of Medicine, University of California, La Jolla, CA, USA
- Sanford Consortium for Regenerative Medicine, San Diego School of Medicine, University of California, La Jolla, CA, USA
- Moores Cancer Center, San Diego School of Medicine, University of California, La Jolla, CA, USA
| | - Tannishtha Reya
- Departments of Pharmacology and Medicine, San Diego School of Medicine, University of California, La Jolla, CA, USA.
- Sanford Consortium for Regenerative Medicine, San Diego School of Medicine, University of California, La Jolla, CA, USA.
- Moores Cancer Center, San Diego School of Medicine, University of California, La Jolla, CA, USA.
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Pavlidis ET, Lambropoulou M, Symeonidis NG, Anagnostopoulos C, Tsaroucha A, Kotini A, Nikolaidou C, Kiziridou A, Simopoulos C. The Immunohistochemical Expression MTA 1 Protein and its Prognostic Value in Pancreatic Cancer. J INVEST SURG 2018; 31:142-150. [PMID: 28635511 DOI: 10.1080/08941939.2017.1280565] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Purpose/aim: To examine with immunohistochemical assay MTA1 protein expression levels in pancreatic cancer tissues defining its prognostic value. MATERIAL AND METHODS The specimens derived from 51 patients who underwent surgery. The levels of MTA1 protein were compared with the age of the patients, their survival, and prognosis. Also, we studied clinical and histopathological factors such as the degree of tumor differentiation and its stage in correlation with MTA1 protein levels. In parallel, there was correlation between the expression of the ΜΤΑ1 protein and the aforementioned factors regarding survival rate. Furthermore, we independently correlated the patient's survival in relation to whether they had undergone adjuvant chemotherapy or not. RESULTS It has been found to be low, moderate, or high expression of MTA1 levels in 48 out of 51 cancer tissues. Specifically, 49.0% of patients had low expression, 33.3% moderate, and 11.8% high expression of MTA1. Regarding the expression of MTA1 protein in correlation with various clinical and histopathological factors, a statistically significant correlation was observed with the degree of differentiation (p = 0.0068) and with the stage of the disease (p = 0.0173), but not with survival (p = 0.0740) or the age of them (p = 0.1547). Finally, it was found that overexpression of the MTA1protein is a prognostic factor for shorter survival in patients with pancreatic cancer (average 4.67 ± 0.95 months). CONCLUSIONS MTA 1 protein may constitute an important prognostic marker in pancreatic cancer and could improve prognosis and treatment.
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Affiliation(s)
- Efstathios T Pavlidis
- c 2nd Department of Surgery and Laboratory of Experimental Surgery - Postgraduate Program in Hepatobiliary/Pancreatic Surgery, School of Medicine , Democritus University of Thrace , 68 100 Alexandroupolis , Greece
| | | | - Nikolaos G Symeonidis
- c 2nd Department of Surgery and Laboratory of Experimental Surgery - Postgraduate Program in Hepatobiliary/Pancreatic Surgery, School of Medicine , Democritus University of Thrace , 68 100 Alexandroupolis , Greece
| | | | - Alexandra Tsaroucha
- d Laboratories of Medical Physics, Department of Pathology , Theagenio Anticancer Hospital , Thessaloniki , Greece
| | - Athanasia Kotini
- d Laboratories of Medical Physics, Department of Pathology , Theagenio Anticancer Hospital , Thessaloniki , Greece
| | | | - Anastasia Kiziridou
- d Laboratories of Medical Physics, Department of Pathology , Theagenio Anticancer Hospital , Thessaloniki , Greece
| | - Constantinos Simopoulos
- c 2nd Department of Surgery and Laboratory of Experimental Surgery - Postgraduate Program in Hepatobiliary/Pancreatic Surgery, School of Medicine , Democritus University of Thrace , 68 100 Alexandroupolis , Greece
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23
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Colaluca IN, Basile A, Freiburger L, D'Uva V, Disalvatore D, Vecchi M, Confalonieri S, Tosoni D, Cecatiello V, Malabarba MG, Yang CJ, Kainosho M, Sattler M, Mapelli M, Pece S, Di Fiore PP. A Numb-Mdm2 fuzzy complex reveals an isoform-specific involvement of Numb in breast cancer. J Cell Biol 2018; 217:745-762. [PMID: 29269425 PMCID: PMC5800818 DOI: 10.1083/jcb.201709092] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 11/15/2017] [Accepted: 11/17/2017] [Indexed: 12/03/2022] Open
Abstract
Numb functions as an oncosuppressor by inhibiting Notch signaling and stabilizing p53. This latter effect depends on the interaction of Numb with Mdm2, the E3 ligase that ubiquitinates p53 and commits it to degradation. In breast cancer (BC), loss of Numb results in a reduction of p53-mediated responses including sensitivity to genotoxic drugs and maintenance of homeostasis in the stem cell compartment. In this study, we show that the Numb-Mdm2 interaction represents a fuzzy complex mediated by a short Numb sequence encompassing its alternatively spliced exon 3 (Ex3), which is necessary and sufficient to inhibit Mdm2 and prevent p53 degradation. Alterations in the Numb splicing pattern are critical in BC as shown by increased chemoresistance of tumors displaying reduced levels of Ex3-containing isoforms, an effect that could be mechanistically linked to diminished p53 levels. A reduced level of Ex3-less Numb isoforms independently predicts poor outcome in BCs harboring wild-type p53. Thus, we have uncovered an important mechanism of chemoresistance and progression in p53-competent BCs.
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Affiliation(s)
| | - Andrea Basile
- The FIRC Institute for Molecular Oncology Foundation, Milan, Italy
- Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - Lee Freiburger
- Center for Integrated Protein Science Munich, Department of Chemistry, Technical University of Munich, Garching, Germany
- Institute of Structural Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Veronica D'Uva
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy
- Program of Molecular Medicine, European Institute of Oncology, Milan, Italy
| | | | - Manuela Vecchi
- The FIRC Institute for Molecular Oncology Foundation, Milan, Italy
| | | | - Daniela Tosoni
- Program of Molecular Medicine, European Institute of Oncology, Milan, Italy
| | - Valentina Cecatiello
- Department of Experimental Oncology, European Institute of Oncology, Milan, Italy
| | - Maria Grazia Malabarba
- The FIRC Institute for Molecular Oncology Foundation, Milan, Italy
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy
| | - Chun-Jiun Yang
- Structural Biology Research Center, Graduate School of Science, Nagoya University, Nagoya, Japan
- Graduate School of Science and Engineering, Tokyo Metropolitan University, Tokyo, Japan
| | - Masatsune Kainosho
- Structural Biology Research Center, Graduate School of Science, Nagoya University, Nagoya, Japan
- Graduate School of Science and Engineering, Tokyo Metropolitan University, Tokyo, Japan
| | - Michael Sattler
- Center for Integrated Protein Science Munich, Department of Chemistry, Technical University of Munich, Garching, Germany
- Institute of Structural Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Marina Mapelli
- Department of Experimental Oncology, European Institute of Oncology, Milan, Italy
| | - Salvatore Pece
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy
- Program of Molecular Medicine, European Institute of Oncology, Milan, Italy
| | - Pier Paolo Di Fiore
- The FIRC Institute for Molecular Oncology Foundation, Milan, Italy
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy
- Program of Molecular Medicine, European Institute of Oncology, Milan, Italy
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24
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Pavlidis ET, Pavlidis TE. Current Molecular and Genetic Aspects of Pancreatic Cancer, the Role of Metastasis Associated Proteins (MTA): A Review. J INVEST SURG 2018; 31:54-66. [PMID: 28060554 DOI: 10.1080/08941939.2016.1269854] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Purpose/aim: To focus on current molecular and genetic aspects and MTA proteins, since pancreatic cancer is a lethal malignant with poor prognosis. Early diagnosis is essential step, contributing to potential curative resection. MATERIALS AND METHODS A PubMed search of relevant articles published up to August 2016 was performed to identify current information about pancreatic cancer regarding molecular biomarkers, with emphasis on carcinogenesis, novel therapeutic targets, and MTA proteins. RESULTS Understanding the mechanisms involved in the process of carcinogenesis at the molecular level and the recognition of various oncogenes has opened new horizons for both diagnosis and targeted therapy. Metastasis associated (MTA) proteins (MTA1, MTA2, MTA3) comprise a well-established family of biomarkers. The oncogene MTA1 and its expression product MTA1 protein are the most important and adequately studied in the current research. It defines the growth, local invasiveness, lymphatic spread, and metastatic capacity of various malignancies such as colorectal or gastric cancer including also pancreatic cancer. This protein is associated with malignant potential and biological behavior. Consequently, it could contribute to cancer detection since the first stages of carcinogenesis, as well as in prediction of its malignant differentiation grade. The pre-operative information of the possibility of lymph node involvement may also affect the attempt and the extent of curative resection and lymphadenectomy. CONCLUSIONS Carcinogenesis and implicated oncogenes, either activators or repressors, concentrate much research interest, as well as being useful as biomarkers and for targeted therapy. MTA proteins could become useful diagnostic and prognostic biomarkers in current management of pancreatic cancer.
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Affiliation(s)
- Efstathios T Pavlidis
- a Aristotle University of Thessaloniki, Medical School , Second Surgical Propedeutic Department, Hippocration Hospital , Konstantinoupoleos 49, 546 42 Thessaloniki , Greece
| | - Theodoros E Pavlidis
- a Aristotle University of Thessaloniki, Medical School , Second Surgical Propedeutic Department, Hippocration Hospital , Konstantinoupoleos 49, 546 42 Thessaloniki , Greece
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25
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Yang S, Sheng L, Xu K, Wang Y, Zhu H, Zhang P, Mu Q, Ouyang G. Anticancer effect of quinacrine on diffuse large B‑cell lymphoma via inhibition of MSI2‑NUMB signaling pathway. Mol Med Rep 2018; 17:522-530. [PMID: 29115587 DOI: 10.3892/mmr.2017.7892] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 09/08/2017] [Indexed: 11/05/2022] Open
Abstract
Diffuse large B‑cell lymphoma (DLBCL) is the most common subtype of non‑Hodgkin's lymphoma. Despite improvements in the clinical outcomes of DLBCL, ~30% of patients will develop relapse/refractory disease. Therefore, novel therapeutic drugs have been investigated to improve disease outcomes. Previous studies have revealed the anticancer effects of quinacrine (QC) on tumor cells in vitro, although its role in human DLBCL is yet to be identified. The present study sought to examine the cytotoxic effect of QC on DLBCL cells. QC induced G0/G1 cell cycle arrest and apoptosis in the DLBCL cell lines SU‑DHL‑8 and OCI‑LY01, in a dose‑dependent manner, in addition to the downregulation of cyclin‑dependent kinase 4/6 and the upregulation of cleaved poly‑ADP ribose polymerase 1. Upon exposure to QC, RNA‑binding protein Musashi homolog 2 inactivation and activation of protein numb homolog were observed. In addition, QC was able to inhibit the expression of Myc proto‑oncogene protein. The results of the present study indicated that QC may be a potential anti‑DLBCL drug.
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Affiliation(s)
- Shujun Yang
- Department of Hematology, Ningbo First Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Lixia Sheng
- Department of Hematology, Ningbo First Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Kaihong Xu
- Department of Hematology, Ningbo First Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Yi Wang
- Department of Hematology, Ningbo First Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Huiling Zhu
- Department of Hematology, Ningbo First Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Ping Zhang
- Department of Hematology, Ningbo First Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Qitian Mu
- Department of Hematology, Ningbo First Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Guifang Ouyang
- Department of Hematology, Ningbo First Hospital, Ningbo, Zhejiang 315010, P.R. China
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26
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Sheng W, Chen C, Dong M, Wang G, Zhou J, Song H, Li Y, Zhang J, Ding S. Calreticulin promotes EGF-induced EMT in pancreatic cancer cells via Integrin/EGFR-ERK/MAPK signaling pathway. Cell Death Dis 2017; 8:e3147. [PMID: 29072694 PMCID: PMC5680916 DOI: 10.1038/cddis.2017.547] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 09/13/2017] [Accepted: 09/18/2017] [Indexed: 12/13/2022]
Abstract
Our previous study showed that Calreticulin (CRT) promoted the development of pancreatic cancer (PC) through ERK/MAPK pathway. We next investigate whether CRT promotes EGF-induced epithelial-mesenchymal transition (EMT) in PC via Integrin/EGFR-ERK/MAPK signaling, which has not been reported yet to our knowledge. EGF simultaneously induced EMT and activated Integrin/EGFR-ERK/MAPK signaling pathway in 3 PC cells. However, CRT silencing significantly inhibited EGF function, including inhibiting EGF-induced EMT-like cell morphology, EGF-enhanced cell invasion and migration, and EGF induced the decrease of E-cadherin, ZO-1, and β-catenin and the increase of the key proteins in Integrin/EGFR-ERK/MAPK signaling (pEGFR-tyr1173, Fibronectin, Integrinβ1, c-Myc and pERK). Conversely, CRT overexpression rescued the change of EMT-related proteins induced by EGF in CRT silencing PC cells. Additionally, CRT was co-stained with pEGFR1173 (with EGF), Fibronectin and Integrinβ1 by IF under confocal microscopy and was co-immunoprecipitated with Fibronectin, Integrinβ1 and c-Myc in both PC cells, all of which indicating a close interaction of CRT with Integrin/EGFR-ERK/MAPK signaling pathway in PC. In vivo, CRT silencing inhibited subcutaneous tumor growth and liver metastasis of pancreatic tumor. A positive relationship of CRT with Fibronectin, Integrinβ1, c-Myc and pERK and a negative association of CRT with E-cad was also observed in vivo and clinical samples. Meanwhile, overexpression of the above proteins was closely associated with multiple aggressive clinicopathological characteristics and the poor prognosis of PC patients. CRT promotes EGF-induced EMT in PC cells via Integrin/EGFR-ERK/MAPK signaling pathway, which would be a promising therapy target for PC.
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Affiliation(s)
- Weiwei Sheng
- Department of Gastrointestinal Surgery, the First Hospital, China Medical University, Shenyang 110001, China
| | - Chuanping Chen
- Department of Clinical Laboratory, the Sixth Peoples' hospital of Shenyang, Shenyang 110003, China
| | - Ming Dong
- Department of Gastrointestinal Surgery, the First Hospital, China Medical University, Shenyang 110001, China
| | - Guosen Wang
- Department of Gastrointestinal Surgery, the First Hospital, China Medical University, Shenyang 110001, China
| | - Jianping Zhou
- Department of Gastrointestinal Surgery, the First Hospital, China Medical University, Shenyang 110001, China
| | - He Song
- Department of Gastrointestinal Surgery, the First Hospital, China Medical University, Shenyang 110001, China
| | - Yang Li
- Department of Cell Biology, China Medical University, Shenyang 110013, China
| | - Jian Zhang
- Department of Cell Biology, China Medical University, Shenyang 110013, China
| | - Shuangning Ding
- Department of Endocrinology and Metabolism in Liaoning Province, the First Hospital of China Medical University, Shenyang 110001, China
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27
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Sheng W, Dong M, Chen C, Wang Z, Li Y, Wang K, Li Y, Zhou J. Cooperation of Musashi-2, Numb, MDM2, and P53 in drug resistance and malignant biology of pancreatic cancer. FASEB J 2017; 31:2429-2438. [PMID: 28223335 DOI: 10.1096/fj.201601240r] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 01/30/2017] [Indexed: 12/13/2022]
Abstract
Our earlier work showed that Musashi (MSI)-2 promoted the development of pancreatic cancer (PC) by down-regulating Numb, which prevented murine double-minute (MDM)-2-mediated p53 ubiquitin degradation. Thus, we investigate the relationship among MSI2, Numb, MDM2, and p53 in PC in vitro and invivo, an association that has not been reported to our knowledge. MSI2 had no relationship with mutant p53 (mtp53) and wild-type p53 (wtp53) in normal PC cells. However, in response to gemcitabine or cisplatin treatment, MSI2 silencing simultaneously down-regulated MDM2 and up-regulated Numb and wtp53 protein levels. Moreover, these 4 endogenous proteins can be coimmunoprecipitated as a quaternary complex. Numb small interfering RNA (siRNA) reversed the MSI2 silencing-induced p53 increase. During treatment with chemical agents, MSI2 silencing decreased drug resistance and cell motility in vitro and inhibited tumor growth in vivo, all of which were significantly reversed by p53 siRNA. MSI2 was also negatively associated with Numb and positively associated with MDM2 expression in tissue. Overexpression of MSI2, MDM2, and mtp53 and weak expression of Numb were closely associated with aggressive clinicopathologic characteristics and poor prognosis for patients with PC. MSI2 negatively regulates wtp53 protein by up-regulating MDM2 and down-regulating Numb after treatment with chemical agents. MSI2 promotes drug resistance and malignant biology of PC in a p53-dependent manner.-Sheng, W., Dong, M., Chen, C., Wang, Z., Li, Y., Wang, K., Li, Y., Zhou, J. Cooperation of Musashi-2, Numb, MDM2, and P53 in drug resistance and malignant biology of pancreatic cancer.
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Affiliation(s)
- Weiwei Sheng
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - Ming Dong
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China;
| | - Chuanping Chen
- Clinical Laboratory, The Sixth Peoples' Hospital of Shenyang City, Shenyang, China
| | - Zixin Wang
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - Yunwei Li
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - Kewei Wang
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - Yuji Li
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - Jianping Zhou
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
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