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Lok A, Descamps G, Tessoulin B, Chiron D, Eveillard M, Godon C, Le Bris Y, Vabret A, Bellanger C, Maillet L, Barillé-Nion S, Gregoire M, Fonteneau JF, Le Gouill S, Moreau P, Tangy F, Amiot M, Moreau-Aubry A, Pellat-Deceunynck C. p53 regulates CD46 expression and measles virus infection in myeloma cells. Blood Adv 2018; 2:3492-3505. [PMID: 30530776 PMCID: PMC6290095 DOI: 10.1182/bloodadvances.2018025106] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 11/05/2018] [Indexed: 02/06/2023] Open
Abstract
In this study, we assessed the sensitivity of myeloma cells to the oncolytic measles virus (MV) in relation to p53 using 37 cell lines and 23 primary samples. We showed that infection and cell death were correlated with CD46 expression, which was associated with TP53 status; TP53 abn cell lines highly expressed CD46 and were preferentially infected by MV when compared with the TP53 wt cell lines (P = .046 and P = .045, respectively). Infection of myeloma cells was fully dependent on CD46 expression in both cell lines and primary cells. In the TP53 wt cell lines, but not the TP53 abn cell lines, activation of the p53 pathway with nutlin3a inhibited both CD46 expression and MV infection, while TP53 silencing reciprocally increased CD46 expression and MV infection. We showed using a p53 chromatin immunoprecipitation assay and microRNA assessment that CD46 gene expression was directly and indirectly regulated by p53. Primary myeloma cells overexpressed CD46 as compared with normal cells and were highly infected and killed by MV. CD46 expression and MV infection were inhibited by nutlin3a in primary p53-competent myeloma cells, but not in p53-deficient myeloma cells, and the latter were highly sensitive to MV infection. In summary, myeloma cells were highly sensitive to MV and infection inhibition by the p53 pathway was abrogated in p53-deficient myeloma cells. These results argue for an MV-based clinical trial for patients with p53 deficiency.
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Affiliation(s)
- Anne Lok
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France
- Service d'Hématologie Clinique, Unité d'Investigation Clinique, and
| | - Geraldine Descamps
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France
| | - Benoit Tessoulin
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France
- Service d'Hématologie Clinique, Unité d'Investigation Clinique, and
| | - David Chiron
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France
| | - Marion Eveillard
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France
- Laboratoire d'Hématologie, CHU de Nantes, Nantes, France
| | | | - Yannick Le Bris
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France
- Laboratoire d'Hématologie, CHU de Nantes, Nantes, France
| | - Astrid Vabret
- National Reference Laboratory for Measles Virus, Département de Virologie, CHU de Caen, Université de Normandie, Caen, France; and
| | - Celine Bellanger
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France
| | - Laurent Maillet
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France
| | - Sophie Barillé-Nion
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France
| | - Marc Gregoire
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France
| | | | - Steven Le Gouill
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France
- Service d'Hématologie Clinique, Unité d'Investigation Clinique, and
| | - Philippe Moreau
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France
- Service d'Hématologie Clinique, Unité d'Investigation Clinique, and
| | - Frederic Tangy
- CNRS UMR3569, Unité de Génomique Virale et Vaccination, Institut Pasteur, Paris, France
| | - Martine Amiot
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France
| | - Agnes Moreau-Aubry
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France
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Systematic Identification and Bioinformatic Analysis of MicroRNAs in Response to Infections of Coxsackievirus A16 and Enterovirus 71. BIOMED RESEARCH INTERNATIONAL 2016; 2016:4302470. [PMID: 27843944 PMCID: PMC5098103 DOI: 10.1155/2016/4302470] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 09/29/2016] [Indexed: 12/18/2022]
Abstract
Hand, foot, and mouth disease (HFMD), mainly caused by coxsackievirus A16 (CVA16) and enterovirus 71 (EV71) infections, remains a serious public health issue with thousands of newly diagnostic cases each year since 2008 in China. The mechanisms underlying viral infection, however, are elusive to date. In the present study, we systematically investigated the host cellular microRNA (miRNA) expression patterns in response to CVA16 and EV71 infections. Through microarray examination, 27 miRNAs (15 upregulated and 12 downregulated) were found to be coassociated with the replication process of two viruses, while the expression levels of 15 and 5 miRNAs were significantly changed in CVA16- and EV71-infected cells, respectively. A great number of target genes of 27 common differentially expressed miRNAs were predicted by combined use of two computational target prediction algorithms, TargetScan and MiRanda. Comprehensive bioinformatic analysis of target genes in GO categories and KEGG pathways indicated the involvement of diverse biological functions and signaling pathways during viral infection. These results provide an overview of the roles of miRNAs in virus-host interaction, which will contribute to further understanding of HFMD pathological mechanisms.
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Hui WT, Ma XB, Zan Y, Wang XJ, Dong L. Prognostic Significance of MiR-34a Expression in Patients with Gastric Cancer after Radical Gastrectomy. Chin Med J (Engl) 2016; 128:2632-7. [PMID: 26415802 PMCID: PMC4736868 DOI: 10.4103/0366-6999.166019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND MiR-34a dysregulation has been implicated in tumorigenesis and progression of gastric cancer, but its role in prognosis of patients with gastric cancer remains unknown. The aim of this study was to investigate the expression and prognostic significance of miR-34a in gastric cancer patients after radical gastrectomy. METHODS Quantitative real-time polymerase chain reaction was performed to detect the expression of miR-34a in human gastric cancer cell lines and tissues in 76 patients with gastric adenocarcinoma from China. Results are assessed for association with clinical features and overall survival (OS) using Kaplan-Meier analysis. Prognostic values of miR-34a expression and clinical outcomes were evaluated by Cox regression analysis. A molecular prognostic stratification scheme incorporating miR-34a expression was determined using receiver operating characteristic analysis. RESULTS The results show that the expression level of miR-34a was decreased in human gastric cancer cell lines and tissues, and down-regulated expression of miR-34a was associated with Lauren classification (P = 0.034). Decreased miR-34a expression in gastric cancer tissues was positively correlated with poor OS of gastric cancer patients (P = 0.013). Further multivariate Cox regression analysis suggested that miR-34a expression was an independent prognostic indicator for gastric cancer (P = 0.027). Applying the prognostic value of miR-34a expression to tumor node metastasis (TNM) stage system showed a better prognostic value in patients with gastric cancer than miR-34a expression (P = 0.0435) or TNM stage (P = 0.0249) alone. CONCLUSION The results reinforce the critical role for the down-regulated miR-34a expression in gastric cancer and suggest that miR-34a could be a prognostic indicator for this disease.
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Affiliation(s)
| | | | | | | | - Lei Dong
- Department of Gastroenterology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi 710000, China
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Abstract
The tumor suppressor p53 pathway, whose alterations are highly associated with all types of human cancers, plays an essential role in preventing tumor development and progression mostly through its downstream target genes. Over the last decade, a growing list of p53 microRNA (miRNA) targets has been identified as additional downstream players of this pathway. Further studies of these miRNAs have revealed their more complicated regulations and functions in executing and/or regulating p53 activity. Here, we review the p53 miRNA targets identified thus far, and discuss how they fine-tune p53 stress responses, mediate the crosstalk between p53 and other signaling pathways, and expand the role of p53 in other human diseases in addition to cancers.
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Affiliation(s)
- Jun-Ming Liao
- 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
| | - Xiang Zhou
- 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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