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Crombé A, Lecomte JC, Seux M, Banaste N, Gorincour G. Using the Textual Content of Radiological Reports to Detect Emerging Diseases: A Proof-of-Concept Study of COVID-19. J Imaging Inform Med 2024; 37:620-632. [PMID: 38343242 PMCID: PMC11031522 DOI: 10.1007/s10278-023-00949-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/02/2023] [Accepted: 10/04/2023] [Indexed: 04/20/2024]
Abstract
Changes in the content of radiological reports at population level could detect emerging diseases. Herein, we developed a method to quantify similarities in consecutive temporal groupings of radiological reports using natural language processing, and we investigated whether appearance of dissimilarities between consecutive periods correlated with the beginning of the COVID-19 pandemic in France. CT reports from 67,368 consecutive adults across 62 emergency departments throughout France between October 2019 and March 2020 were collected. Reports were vectorized using time frequency-inverse document frequency (TF-IDF) analysis on one-grams. For each successive 2-week period, we performed unsupervised clustering of the reports based on TF-IDF values and partition-around-medoids. Next, we assessed the similarities between this clustering and a clustering from two weeks before according to the average adjusted Rand index (AARI). Statistical analyses included (1) cross-correlation functions (CCFs) with the number of positive SARS-CoV-2 tests and advanced sanitary index for flu syndromes (ASI-flu, from open-source dataset), and (2) linear regressions of time series at different lags to understand the variations of AARI over time. Overall, 13,235 chest CT reports were analyzed. AARI was correlated with ASI-flu at lag = + 1, + 5, and + 6 weeks (P = 0.0454, 0.0121, and 0.0042, respectively) and with SARS-CoV-2 positive tests at lag = - 1 and 0 week (P = 0.0057 and 0.0001, respectively). In the best fit, AARI correlated with the ASI-flu with a lag of 2 weeks (P = 0.0026), SARS-CoV-2-positive tests in the same week (P < 0.0001) and their interaction (P < 0.0001) (adjusted R2 = 0.921). Thus, our method enables the automatic monitoring of changes in radiological reports and could help capturing disease emergence.
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Affiliation(s)
- Amandine Crombé
- IMADIS, Lyon, France.
- SARCOTARGET Team, University of Bordeaux, Inserm, UMR1312, BRIC, BoRdeaux Institute of Oncology, 146 Rue Léo Saignat, Bordeaux, F-33076, France.
- Department of Radiology, Pellegrin University Hospital, CHU Bordeaux, Place Amélie Raba-Léon, Bordeaux, F-33076, France.
| | - Jean-Christophe Lecomte
- IMADIS, Lyon, France
- Centre Aquitain d'Imagerie médicale, Mérignac, France
- Centre Hospitalier de Saintes, Saintes, France
- Clinique Mutualiste Bordeaux Pessac, Pessac, France
| | | | - Nathan Banaste
- IMADIS, Lyon, France
- Clinique Convert, Ramsay, Bourg en Bresse, France
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Crombé A, Dupont C, Casalonga F, Seux M, Favard N, Coulon A, Jurkovic T, Nivet H, Gorincour G. Emergency department CT examinations demonstrate no evidence of early viral circulation at the start of the COVID-19 pandemic-a multicentre epidemiological study. Insights Imaging 2024; 15:14. [PMID: 38228899 DOI: 10.1186/s13244-023-01590-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 11/29/2023] [Indexed: 01/18/2024] Open
Abstract
BACKGROUND Biological studies suggested that the COVID-19 outbreak in France occurred before the first official diagnosis on January 24, 2020. We investigated this controversial topic using a large collection of chest CTs performed throughout French emergency departments within 6 months before the 1st lockdown. RESULTS Overall, 49,311 consecutive patients (median age: 60 years, 23,636/49,311 [47.9%] women) with available chest CT images and reports from 61 emergency departments between September 1, 2020, and March 16, 2020 (day before the 1st French lockdown), were retrospectively included in this multicentre study. In the macroscopic analysis of reports automatically (labelled for presence of ground glass opacities [GGOs], reticulations, and bilateral and subpleural abnormalities), we found a significant breakpoint on February 17, 2020, for the weekly time series with 1, 2 and ≥ 3 of these 4 radiological features, with 146/49,311 (0.3%) patients showing bilateral abnormalities and ground glass opacities (GGOs) from that day. According to radiologists, 22/146 (15.1%) CT images showed typical characteristics of COVID-19, including 4/146 (2.7%) before February 2020. According to hospital records, one patient remained without microbial diagnosis, two patients had proven influenza A and one patient had concomitant influenza A and mycoplasma infection. CONCLUSION These results suggest that SARS-CoV-2 was not circulating in the areas covered by the 61 emergency departments involved in our study before the official beginning of the COVID-19 outbreak in France. In emergency patients, the strong resemblance among mycoplasma, influenza A and SARS-CoV-2 lung infections on chest CT and the nonspecificity of CT patterns in low prevalence periods is stressed. CRITICAL RELEVANCE STATEMENT We proposed here an innovative approach to revisit a controversial 'real' start of the COVID-19 pandemic in France based on (1) a population-level approach combining text mining, time series analysis and an epidemiological dataset and (2) a patient-level approach with careful retrospective reading of chest CT scans complemented by analysis of samples performed contemporarily to the chest CT. We showed no evidence that SARS-CoV-2 was actively circulating in France before February 2020.
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Affiliation(s)
- Amandine Crombé
- IMADIS, Lyon, France
- SARCOTARGET Team, BRIC INSERM U1312 - Bordeaux University, Bordeaux, F-33000, France
- Department of Radiology, Pellegrin University Hospital, Bordeaux, France
| | | | | | | | - Nicolas Favard
- IMADIS, Lyon, France
- Imagerie Médicale du Mâconnais, Mâcon, France
| | - Agnès Coulon
- IMADIS, Lyon, France
- Centre Léon Berard, Lyon, France
| | | | - Hubert Nivet
- IMADIS, Lyon, France
- Centre Aquitain d'Imagerie Médicale, Mérignac, France
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Crombé A, Bensid L, Seux M, Fadli D, Arnaud F, Benhamed A, Banaste N, Gorincour G. Impact of Vaccination and the Omicron Variant on COVID-19-related Chest CT Findings: A Multicenter Study. Radiology 2023. [PMID: 36880948 DOI: 10.1148/radiol.222730:222730] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Background The SARS-CoV-2 Omicron variant has a higher infection rate than previous variants but results in less severe disease. However, the effects of Omicron and vaccination on chest CT findings are difficult to evaluate. Purpose To investigate the effect of vaccination status and predominant variant on chest CT findings, diagnostic scores, and severity scores in a multicenter sample of consecutive patients referred to emergency departments for proven COVID-19. Materials and Methods This retrospective multicenter study included adults referred to 93 emergency departments with SARS-CoV-2 infection according to a reverse-transcriptase polymerase chain reaction test and known vaccination status between July 2021 and March 2022. Clinical data and structured chest CT reports, including semiquantitative diagnostic and severity scores following the French Society of Radiology-Thoracic Imaging Society guidelines, were extracted from a teleradiology database. Observations were divided into Delta-predominant, transition, and Omicron-predominant periods. Associations between scores and variant and vaccination status were investigated with χ2 tests and ordinal regressions. Multivariable analyses evaluated the influence of Omicron variant and vaccination status on the diagnostic and severity scores. Results Overall, 3876 patients were included (median age, 68 years [quartile 1 to quartile 3 range, 54-80]; 1695 women). Diagnostic and severity scores were associated with the predominant variant (Delta vs Omicron, χ2 = 112.4 and 33.7, respectively; both P < .001) and vaccination status (χ2 = 243.6 and 210.1; both P < .001) and their interaction (χ2 = 4.3 [P = .04] and 28.7 [P < .001], respectively). In multivariable analyses, Omicron variant was associated with lower odds of typical CT findings than was Delta variant (odds ratio [OR], 0.46; P < .001). Two and three vaccine doses were associated with lower odds of demonstrating typical CT findings (OR, 0.32 and 0.20, respectively; both P < .001) and of having high severity score (OR, 0.47 and 0.33, respectively; both P < .001), compared with unvaccinated patients. Conclusion Both the Omicron variant and vaccination were associated with less typical chest CT manifestations of COVID-19 and lesser extent of disease. © RSNA, 2023 Supplemental material is available for this article. See also the editorial by Yoon and Goo in this issue.
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Affiliation(s)
- Amandine Crombé
- From IMADIS, 48 rue Quivogne, Lyon 69002, France (A.C., L.B., M.S., D.F., F.A., N.B., G.G.); Department of Radiology, Pellegrin University Hospital and Bordeaux University, Bordeaux, France (A.C., D.F.); Ramsay Generale de Sante, Hopital Prive Clairval, Marseille, France (F.A.); Service SAMU-Urgences, Centre Hospitalier Universitaire Edouard Herriot, Hospices Civils de Lyon, Lyon, France (A.B.); Ramsay Generale de Sante, Clinique Convert, Bourg-en-Bresse, France (N.B.); and ELSAN, Clinique Bouchard, Marseille, France (G.G.)
| | - Lounès Bensid
- From IMADIS, 48 rue Quivogne, Lyon 69002, France (A.C., L.B., M.S., D.F., F.A., N.B., G.G.); Department of Radiology, Pellegrin University Hospital and Bordeaux University, Bordeaux, France (A.C., D.F.); Ramsay Generale de Sante, Hopital Prive Clairval, Marseille, France (F.A.); Service SAMU-Urgences, Centre Hospitalier Universitaire Edouard Herriot, Hospices Civils de Lyon, Lyon, France (A.B.); Ramsay Generale de Sante, Clinique Convert, Bourg-en-Bresse, France (N.B.); and ELSAN, Clinique Bouchard, Marseille, France (G.G.)
| | - Mylène Seux
- From IMADIS, 48 rue Quivogne, Lyon 69002, France (A.C., L.B., M.S., D.F., F.A., N.B., G.G.); Department of Radiology, Pellegrin University Hospital and Bordeaux University, Bordeaux, France (A.C., D.F.); Ramsay Generale de Sante, Hopital Prive Clairval, Marseille, France (F.A.); Service SAMU-Urgences, Centre Hospitalier Universitaire Edouard Herriot, Hospices Civils de Lyon, Lyon, France (A.B.); Ramsay Generale de Sante, Clinique Convert, Bourg-en-Bresse, France (N.B.); and ELSAN, Clinique Bouchard, Marseille, France (G.G.)
| | - David Fadli
- From IMADIS, 48 rue Quivogne, Lyon 69002, France (A.C., L.B., M.S., D.F., F.A., N.B., G.G.); Department of Radiology, Pellegrin University Hospital and Bordeaux University, Bordeaux, France (A.C., D.F.); Ramsay Generale de Sante, Hopital Prive Clairval, Marseille, France (F.A.); Service SAMU-Urgences, Centre Hospitalier Universitaire Edouard Herriot, Hospices Civils de Lyon, Lyon, France (A.B.); Ramsay Generale de Sante, Clinique Convert, Bourg-en-Bresse, France (N.B.); and ELSAN, Clinique Bouchard, Marseille, France (G.G.)
| | - François Arnaud
- From IMADIS, 48 rue Quivogne, Lyon 69002, France (A.C., L.B., M.S., D.F., F.A., N.B., G.G.); Department of Radiology, Pellegrin University Hospital and Bordeaux University, Bordeaux, France (A.C., D.F.); Ramsay Generale de Sante, Hopital Prive Clairval, Marseille, France (F.A.); Service SAMU-Urgences, Centre Hospitalier Universitaire Edouard Herriot, Hospices Civils de Lyon, Lyon, France (A.B.); Ramsay Generale de Sante, Clinique Convert, Bourg-en-Bresse, France (N.B.); and ELSAN, Clinique Bouchard, Marseille, France (G.G.)
| | - Axel Benhamed
- From IMADIS, 48 rue Quivogne, Lyon 69002, France (A.C., L.B., M.S., D.F., F.A., N.B., G.G.); Department of Radiology, Pellegrin University Hospital and Bordeaux University, Bordeaux, France (A.C., D.F.); Ramsay Generale de Sante, Hopital Prive Clairval, Marseille, France (F.A.); Service SAMU-Urgences, Centre Hospitalier Universitaire Edouard Herriot, Hospices Civils de Lyon, Lyon, France (A.B.); Ramsay Generale de Sante, Clinique Convert, Bourg-en-Bresse, France (N.B.); and ELSAN, Clinique Bouchard, Marseille, France (G.G.)
| | - Nathan Banaste
- From IMADIS, 48 rue Quivogne, Lyon 69002, France (A.C., L.B., M.S., D.F., F.A., N.B., G.G.); Department of Radiology, Pellegrin University Hospital and Bordeaux University, Bordeaux, France (A.C., D.F.); Ramsay Generale de Sante, Hopital Prive Clairval, Marseille, France (F.A.); Service SAMU-Urgences, Centre Hospitalier Universitaire Edouard Herriot, Hospices Civils de Lyon, Lyon, France (A.B.); Ramsay Generale de Sante, Clinique Convert, Bourg-en-Bresse, France (N.B.); and ELSAN, Clinique Bouchard, Marseille, France (G.G.)
| | - Guillaume Gorincour
- From IMADIS, 48 rue Quivogne, Lyon 69002, France (A.C., L.B., M.S., D.F., F.A., N.B., G.G.); Department of Radiology, Pellegrin University Hospital and Bordeaux University, Bordeaux, France (A.C., D.F.); Ramsay Generale de Sante, Hopital Prive Clairval, Marseille, France (F.A.); Service SAMU-Urgences, Centre Hospitalier Universitaire Edouard Herriot, Hospices Civils de Lyon, Lyon, France (A.B.); Ramsay Generale de Sante, Clinique Convert, Bourg-en-Bresse, France (N.B.); and ELSAN, Clinique Bouchard, Marseille, France (G.G.)
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Roche S, Crombé A, Benhamed A, Hak JF, Dabadie A, Fauconnier-Fatus C, Rega A, Pech-Gourg G, Tazarourte K, Seux M, Acquier A, Gorincour G. Risk Factors Associated with Traumatic Brain Injury and Implementation of Guidelines for Requesting Computed Tomography After Head Trauma Among Children in France. JAMA Netw Open 2023; 6:e2311092. [PMID: 37129895 PMCID: PMC10155067 DOI: 10.1001/jamanetworkopen.2023.11092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/03/2023] Open
Abstract
Importance Pediatric traumatic brain injuries (TBIs) are a leading cause of death and disability. The Pediatric Emergency Care Applied Research Network (PECARN) guidelines provide a framework for requesting head computed tomography (HCT) after pediatric head trauma (PHT); however, quantitative data are lacking regarding both TBIs found on HCT and justification of the HCT request according to the PECARN guidelines. Objectives To evaluate the types, frequencies, and risk factors for TBIs on HCT in children referred to emergency departments (EDs) who underwent HCT for PHT and to evaluate quality of HCT request. Design, Setting, and Participants This multicenter, retrospective cohort study included patients younger than 18 years who underwent HCT for PHT who were referred to 91 EDs during on-call hours between January 1, 2020, to May 31, 2022. Data were analyzed between July and August 2022. Exposure All radiological reports with pathologic findings were reviewed by 4 senior radiologists. Six hundred HCT requests filled by emergency physicians were randomly sampled to review the examination justification according to the PECARN guidelines. Main Outcomes and Measures Associations between TBIs, age, sex, and Glasgow Coma Scale (GCS) were investigated using univariable χ2 and Cochrane-Armitage tests. Multivariable stepwise binary logistic regressions were used to estimate the odds ratio (ORs) for intracranial hemorrhages (ICH), any type of fracture, facial bone fracture, and skull vault fracture. Results Overall, 5146 children with HCT for PHT were included (median [IQR] age, 11.2 [4.7-15.7] years; 3245 of 5146 [63.1%] boys). ICHs were diagnosed in 306 of 5146 patients (5.9%) and fractures in 674 of 5146 patients (13.1%). The following variables were associated with ICH in multivariable analysis: GCS score of 8 or less (OR, 5.83; 95% CI, 1.97-14.60; P < .001), extracranial hematoma (OR, 2.54; 95% CI, 1.59-4.02; P < .001), skull base fracture (OR, 9.32; 95% CI, 5.03-16.97; P < .001), upper cervical fracture (OR, 19.21; 95% CI, 1.79-143.59; P = .006), and skull vault fracture (OR, 35.64; 95% CI, 24.04-53.83; P < .001). When neither extracranial hematoma nor fracture was found on HCT, the OR for presenting ICH was 0.034 (95% CI, 0.026-0.045; P < .001). Skull vault fractures were more frequently encountered in children younger than 2 years (multivariable OR, 6.31; 95% CI, 4.16-9.66; P < .001; reference: children ≥12 years), whereas facial bone fractures were more frequently encountered in boys older than 12 years (multivariable OR, 26.60; 95% CI, 9.72-109.96; P < .001; reference: children younger than 2 years). The justification for performing HCT did not follow the PECARN guidelines for 396 of 589 evaluable children (67.2%) for requests filled by emergency physicians. Conclusion and Relevance In this cohort study of 5146 children who underwent HCT for PHT, knowing the odds of clinical and radiological features for ICHs and fractures could help emergency physicians and radiologists improve their image analysis and avoid missing significant injuries. The PECARN rules were not implemented in nearly two-thirds of patients.
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Affiliation(s)
| | - Amandine Crombé
- IMADIS, Lyon, Bordeaux, Marseille, Dijon, France
- Department of Radiology, Pellegrin University Hospital, Bordeaux, France
- Models in Oncology (MONC) Team, INRIA Bordeaux Sud-Ouest, CNRS UMR 5251 & Bordeaux University, Talence, France
| | - Axel Benhamed
- Service SAMU-Urgences, Centre Hospitalier Universitaire Édouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Jean-François Hak
- Assistance Publique-Hôpitaux de Marseille, Marseille, France
- LIIE, Aix Marseille University, Marseille, France
- CERIMED, Aix Marseille University, Marseille, France
| | - Alexia Dabadie
- IMADIS, Lyon, Bordeaux, Marseille, Dijon, France
- Assistance Publique-Hôpitaux de Marseille, Marseille, France
| | | | | | | | - Karim Tazarourte
- Service SAMU-Urgences, Centre Hospitalier Universitaire Édouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Mylène Seux
- IMADIS, Lyon, Bordeaux, Marseille, Dijon, France
| | - Adrien Acquier
- IMADIS, Lyon, Bordeaux, Marseille, Dijon, France
- CHU de Dijon, Dijon, France
| | - Guillaume Gorincour
- IMADIS, Lyon, Bordeaux, Marseille, Dijon, France
- ELSAN, Clinique Bouchard, Marseille, France
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Crombé A, Bensid L, Seux M, Fadli D, Arnaud F, Benhamed A, Banaste N, Gorincour G. Impact of Vaccination and the Omicron Variant on COVID-19-related Chest CT Findings: A Multicenter Study. Radiology 2023; 307:e222730. [PMID: 36880948 PMCID: PMC10031570 DOI: 10.1148/radiol.222730] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
Background Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) omicron variant has a higher infection rate than previous variants but results in less severe disease. However, the impacts of omicron and vaccination on chest CT findings are difficult to evaluate. Purpose To investigate the impact of vaccination status and predominant variant on chest CT findings, diagnostic and severity scores in multicenter sample of consecutive patients referred to emergency departments for proven COVID-19. Materials and Methods This retrospective, multicenter study included adults referred to 93 emergency departments with SARS-CoV-2 infection according to RT-PCR and known vaccination status between July 2021 and March 2022. Clinical data and structured chest CT reports including semiquantitative diagnostic and severity scores following the French Society of Radiology-Thoracic Imaging Society guidelines were extracted from a teleradiology database. Observations were divided into 'delta-predominant', 'transition', and 'omicron-predominant' periods. Associations between scores and variant and vaccination status were investigated with Chi-square tests and ordinal regressions. Multivariable analyses evaluated the influence of omicron variant and vaccination status on the diagnostic and severity scores. Results Overall, 3876 patients were included (median age: 68 years [Q1-Q3: 54-80], 1695 females). Diagnostic and severity scores were associated with the predominant variant (delta- versus omicron-predominant, Chi-square=112.4 and 33.7, both P<.001) and vaccination (Chi-square=243.6 and 210, both P<.001) and their interaction (Chi-square=4.3, P=.04 and Chi-square=28.7, P<.001, respectively). In multivariable analyses, omicron variant was associated with lower odds of typical CT findings than delta variant (OR=0.46, P<.001). Two and three vaccine doses were associated with lower odds of demonstrating typical CT findings (OR=0.32 and OR=0.20, both P<.001), and of having high severity score (OR=0.47 and OR=0.33, both P<.001), compared with unvaccinated patients. Conclusion Both the omicron variant and vaccination were associated with less typical chest CT manifestations for COVID-19 and lesser extent of disease. See also the editorial by Yoon and Goo in this issue.
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Affiliation(s)
- Amandine Crombé
- IMADIS, 48 Rue Quivogne, Lyon, Bordeaux, Marseille, France
- Department of radiology, Pellegrin university hospital and Bordeaux
university, Bordeaux, France
| | - Lounès Bensid
- IMADIS, 48 Rue Quivogne, Lyon, Bordeaux, Marseille, France
| | - Mylène Seux
- IMADIS, 48 Rue Quivogne, Lyon, Bordeaux, Marseille, France
| | - David Fadli
- IMADIS, 48 Rue Quivogne, Lyon, Bordeaux, Marseille, France
- Department of radiology, Pellegrin university hospital and Bordeaux
university, Bordeaux, France
| | - François Arnaud
- IMADIS, 48 Rue Quivogne, Lyon, Bordeaux, Marseille, France
- Ramsay Générale de Santé, Hôpital
privé Clairval, Marseille, France
| | - Axel Benhamed
- Service SAMU-Urgences, Centre Hospitalier Universitaire
Édouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Nathan Banaste
- IMADIS, 48 Rue Quivogne, Lyon, Bordeaux, Marseille, France
- Ramsay Générale de Santé, Clinique Convert,
Bourg-en-Bresse
| | - Guillaume Gorincour
- IMADIS, 48 Rue Quivogne, Lyon, Bordeaux, Marseille, France
- ELSAN, Clinique Bouchard, Marseille, France
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Crombé A, Seux M, Bratan F, Bergerot JF, Banaste N, Thomson V, Lecomte JC, Gorincour G. What Influences the Way Radiologists Express Themselves in Their Reports? A Quantitative Assessment Using Natural Language Processing. J Digit Imaging 2022; 35:993-1007. [PMID: 35318544 PMCID: PMC8939885 DOI: 10.1007/s10278-022-00619-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 03/07/2022] [Accepted: 03/09/2022] [Indexed: 11/29/2022] Open
Abstract
Although using standardized reports is encouraged, most emergency radiological reports in France remain in free-text format that can be mined with natural language processing for epidemiological purposes, activity monitoring or data collection. These reports are obtained under various on-call conditions by radiologists with various backgrounds. Our aim was to investigate what influences the radiologists’ written expressions. To do so, this retrospective multicentric study included 30,227 emergency radiological reports of computed tomography scans and magnetic resonance imaging involving exactly one body region, only with pathological findings, interpreted from 2019–09-01 to 2020–02-28 by 165 radiologists. After text pre-processing, one-word tokenization and use of dictionaries for stop words, polarity, sentiment and uncertainty, 11 variables depicting the structure and content of words and sentences in the reports were extracted and summarized to 3 principal components capturing 93.7% of the dataset variance. In multivariate analysis, the 1st principal component summarized the length and lexical diversity of the reports and was significantly influenced by the weekday, time slot, workload, number of examinations previously interpreted by the radiologist during the on-call period, type of examination, emergency level and radiologists’ gender (P value range: < 0.0001–0.0029). The 2nd principal component summarized negative formulations, polarity and sentence length and was correlated with the number of examination previously interpreted by the radiologist, type of examination, emergency level, imaging modality and radiologists’ experience (P value range: < 0.0001–0.0032). The last principal component summarized questioning, uncertainty and polarity and was correlated with the type of examination and emergency level (all P values < 0.0001). Thus, the length, structure and content of emergency radiological reports were significantly influenced by organizational, radiologist- and examination-related characteristics, highlighting the subjectivity and variability in the way radiologists express themselves during their clinical activity. These findings advocate for more homogeneous practices in radiological reporting and stress the need to consider these influential features when developing models based on natural language processing.
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Affiliation(s)
- Amandine Crombé
- IMADIS, 48 rue quivogne, 63002, Lyon, France. .,University of Bordeaux, 33000, Bordeaux, France.
| | - Mylène Seux
- IMADIS, 48 rue quivogne, 63002, Lyon, France
| | - Flavie Bratan
- IMADIS, 48 rue quivogne, 63002, Lyon, France.,Department of Diagnostic and Interventional Imaging, Centre Hospitalier Saint-Joseph Saint-Luc, 69007, Lyon, France
| | - Jean-François Bergerot
- IMADIS, 48 rue quivogne, 63002, Lyon, France.,Ramsay Générale de Santé, Clinique Convert, 01000, Bourg-en-Bresse, France
| | - Nathan Banaste
- IMADIS, 48 rue quivogne, 63002, Lyon, France.,Department of Radiology, Hôpital Nord-Ouest, 69400, Villefranche-sur-Saône, France
| | - Vivien Thomson
- IMADIS, 48 rue quivogne, 63002, Lyon, France.,Ramsay Générale de Santé, Clinique de la Sauvegarde, 69009, Lyon, France
| | - Jean-Christophe Lecomte
- IMADIS, 48 rue quivogne, 63002, Lyon, France.,Centre Hospitalier de Saintonge, 17100, Saintes, France.,Centre Aquitain d'Imagerie, 33600, Pessac, France
| | - Guillaume Gorincour
- IMADIS, 48 rue quivogne, 63002, Lyon, France.,ELSAN, Clinique Bouchard, 13006, Marseille, France
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Crombé A, Lecomte JC, Banaste N, Tazarourte K, Seux M, Nivet H, Thomson V, Gorincour G. Emergency teleradiological activity is an epidemiological estimator and predictor of the covid-19 pandemic in mainland France. Insights Imaging 2021; 12:103. [PMID: 34292414 PMCID: PMC8295630 DOI: 10.1186/s13244-021-01040-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 06/11/2021] [Indexed: 02/07/2023] Open
Abstract
Background COVID-19 pandemic highlighted the need for real-time monitoring of diseases evolution to rapidly adapt restrictive measures. This prospective multicentric study aimed at investigating radiological markers of COVID-19-related emergency activity as global estimators of pandemic evolution in France. We incorporated two sources of data from March to November 2020: an open-source epidemiological dataset, collecting daily hospitalisations, intensive care unit admissions, hospital deaths and discharges, and a teleradiology dataset corresponding to the weekly number of CT-scans performed in 65 emergency centres and interpreted remotely. CT-scans specifically requested for COVID-19 suspicion were monitored. Teleradiological and epidemiological time series were aligned. Their relationships were estimated through a cross-correlation function, and their extremes and breakpoints were compared. Dynamic linear models were trained to forecast the weekly hospitalisations based on teleradiological activity predictors. Results A total of 100,018 CT-scans were included over 36 weeks, and 19,133 (19%) performed within the COVID-19 workflow. Concomitantly, 227,677 hospitalisations were reported. Teleradiological and epidemiological time series were almost perfectly superimposed (cross-correlation coefficients at lag 0: 0.90–0.92). Maximal number of COVID-19 CT-scans was reached the week of 2020-03-23 (1 086 CT-scans), 1 week before the highest hospitalisations (23,542 patients). The best valid forecasting model combined the number of COVID-19 CT-scans and the number of hospitalisations during the prior two weeks and provided the lowest mean absolute percentage (5.09%, testing period: 2020-11-02 to 2020-11-29). Conclusion Monitoring COVID-19 CT-scan activity in emergencies accurately and instantly predicts hospitalisations and helps adjust medical resources, paving the way for complementary public health indicators. Supplementary Information The online version contains supplementary material available at 10.1186/s13244-021-01040-3.
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Affiliation(s)
- Amandine Crombé
- Imadis Teleradiology, Lyon, Bordeaux, Marseille, France.,University of Bordeaux, Bordeaux, France
| | - Jean-Christophe Lecomte
- Imadis Teleradiology, Lyon, Bordeaux, Marseille, France.,Centre Hospitalier de Saintonge, Saintes, France.,Centre Aquitain D'Imagerie, Bordeaux, France
| | - Nathan Banaste
- Imadis Teleradiology, Lyon, Bordeaux, Marseille, France.,Department of Radiology, Hôpital Nord-Ouest, Villefranche-sur-Saône, France
| | - Karim Tazarourte
- Emergency Department, CHU Edouard Herriot, Hospices Civils de Lyon, Lyon, France.,INSERM 1290 RESHAPE, University of Lyon 1, Lyon, France
| | - Mylène Seux
- Imadis Teleradiology, Lyon, Bordeaux, Marseille, France
| | - Hubert Nivet
- Imadis Teleradiology, Lyon, Bordeaux, Marseille, France.,Centre Hospitalier de Saintonge, Saintes, France.,Centre Aquitain D'Imagerie, Bordeaux, France
| | - Vivien Thomson
- Imadis Teleradiology, Lyon, Bordeaux, Marseille, France.,Ramsay Générale de Santé, Clinique de la Sauvegarde, Lyon, France
| | - Guillaume Gorincour
- Imadis Teleradiology, Lyon, Bordeaux, Marseille, France. .,ELSAN, Clinique Bouchard, Marseille, France.
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8
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Vatele J, Gentile S, Thomson V, Devictor B, Cloux M, Girouin N, Bratan F, Bergerot JF, Seux M, Banaste N, Tazarourte K, Gorincour G. Teleradiology as a relevant indicator of the impact of COVID-19 pandemic management on emergency room activities: a nationwide worrisome survey. Insights Imaging 2021; 12:30. [PMID: 33660203 PMCID: PMC7927778 DOI: 10.1186/s13244-021-00964-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 01/11/2021] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVES To evaluate the impact of COVID-19's lockdown on radiological examinations in emergency services. METHODS Retrospective, multicentre analysis of radiological examinations requested, via our teleradiology network, from 2017 to 2020 during two timeframes (calendar weeks 5-8 and then 12-15). We included CT scans or MRIs performed for strokes, multiple traumas (Body-CT), cranial traumas (CTr) and acute non-traumatic abdominal pain (ANTAP). We evaluated the number and percentages of examinations performed, of those with a pathological conclusion, and of examinations involving the chest. RESULTS Our study included 25 centres in 2017, 29 in 2018, 43 in 2019 and 59 in 2020. From 2017 to 2019, the percentages of examinations were constant, which was also true for chest CTs. Each centre's number of examinations, gender distribution and patient ages were unchanged. In 2020, examinations significantly decreased: suspected strokes decreased by 36% (1052 vs 675, p < 0.001), Body-CT by 62% (349 vs 134, p < 0.001), CTr by 52% (1853 vs 895, p < 0.001) and for ANTAP, appendicitis decreased by 38% (45 vs 90, not statistically significant (NS)) sigmoiditis by 44% (98 vs 55, NS), and renal colic by 23% (376 vs 288, NS). The number of examinations per centre decreased by 13% (185.5 vs 162.5, p < 0.001), whereas the number of examinations of the "chest" region increased by 170% (1205 vs 3766, p < 0.001). CONCLUSION Teleradiology enabled us to monitor the impact of the COVID-19 pandemic management on emergency activities, showing a global decrease in the population's use of care.
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Affiliation(s)
- Jordan Vatele
- Imadis Teleradiology, Lyon, Bordeaux, Marseille, France.,Department of Radiology, Hospices Civils de Lyon, Lyon, France
| | - Stéphanie Gentile
- Faculté de Médecine - Secteur Timone, EA 3279: CEReSS -Centre d'Etude et de recherche sur les Services de Santé et la Qualité de Vie, Aix-Marseille Université, Marseille, France
| | - Vivien Thomson
- Imadis Teleradiology, Lyon, Bordeaux, Marseille, France.,Ramsay Générale de Santé, Clinique de la Sauvegarde, Lyon, France
| | - Bénédicte Devictor
- Faculté de Médecine - Secteur Timone, EA 3279: CEReSS -Centre d'Etude et de recherche sur les Services de Santé et la Qualité de Vie, Aix-Marseille Université, Marseille, France
| | | | - Nicolas Girouin
- Imadis Teleradiology, Lyon, Bordeaux, Marseille, France.,Norimagerie, Caluire et Cuire, France
| | - Flavie Bratan
- Imadis Teleradiology, Lyon, Bordeaux, Marseille, France.,Department of Diagnostic and Interventional Imaging, Centre Hospitalier Saint-Joseph Saint-Luc, Lyon, France
| | - Jean-François Bergerot
- Imadis Teleradiology, Lyon, Bordeaux, Marseille, France.,Ramsay Générale de Santé, Clinique Convert, Bourg-en-Bresse, France
| | - Mylène Seux
- Imadis Teleradiology, Lyon, Bordeaux, Marseille, France
| | - Nathan Banaste
- Imadis Teleradiology, Lyon, Bordeaux, Marseille, France.,Department of Radiology, Hopital Nord-Ouest, Villefranche-sur-Saône, France
| | - Karim Tazarourte
- Emergency Department, CHU Edouard Herriot, Hospices Civils de Lyon, Lyon, France.,EA 7425 HESPER, Université Lyon 1, Lyon, France
| | - Guillaume Gorincour
- Imadis Teleradiology, Lyon, Bordeaux, Marseille, France. .,ELSAN, Clinique Bouchard, Marseille, France.
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9
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Sejor E, Debs T, Petrucciani N, Brige P, Chopinet S, Seux M, Piche M, Myx-Staccini A, Ben Amor I, Frey S, Prate F, Zenerino A, Gugenheim J. Feasibility and Efficiency of Sutureless End Enterostomy by Means of a 3D-Printed Device in a Porcine Model. Surg Innov 2020; 27:203-210. [PMID: 31941417 DOI: 10.1177/1553350619895631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective. The aim of this study is to present a 3-dimensional (3D)-printed device to simply perform abdominal enterostomy and colostomy. Summary Background Data. Enterostomy and colostomy are frequently performed during abdominal surgery. 3D-printed devices may permit the creation of enterostomy easily. Methods. The device was designed by means of a CAD (computer-aided design) software, Rhinoceros 6 by MC Neel, and manufactured using 3D printers, Factory 2.0 by Omni 3D and Raise 3D N2 Dual Plus by Raise 3D. Colostomy was scheduled on a human cadaver and on 6 Pietrain pigs to test the device and the surgical technique. Results. The test on the cadaver showed that the application of the device was easy. Test on porcine models confirmed that the application of the device was also easy on the living model. The average duration of the surgical procedure was 32 minutes (25-40 minutes). For the female pigs, return to full oral diet and recovery of a normal bowel function was observed at postoperative day 2. The device fell by itself on average on the third day. Until day 10, when euthanasia was practiced, the stoma mucosa had a good coloration indicating a perfect viability of tissues. No complications were observed. Conclusions. This is the first study that describes the use of a 3D-printed device in abdominal surgery. End-type colostomy using a 3D-printed device can be safely and easily performed in an experimental porcine model, without postoperative complications. Further studies are needed to evaluate its utility in the clinical setting.
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Affiliation(s)
| | | | - Niccolo Petrucciani
- Department of Digestive Surgery, Henri Mondor University Hospital, Creteil, France
| | | | - Sophie Chopinet
- Aix-Marseille University, Marseille, France.,Hôpital de la Timone, Marseille, France
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10
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N'guessan P, Pouyet L, Gosset G, Hamlaoui S, Seillier M, Cano CE, Seux M, Stocker P, Culcasi M, Iovanna JL, Dusetti NJ, Pietri S, Carrier A. Absence of tumor suppressor tumor protein 53-induced nuclear protein 1 (TP53INP1) sensitizes mouse thymocytes and embryonic fibroblasts to redox-driven apoptosis. Antioxid Redox Signal 2011; 15:1639-53. [PMID: 21235351 DOI: 10.1089/ars.2010.3553] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The p53-transcriptional target TP53INP1 is a potent stress-response protein promoting p53 activity. We previously showed that ectopic overexpression of TP53INP1 facilitates cell cycle arrest as well as cell death. Here we report a study investigating cell death in mice deficient for TP53INP1. Surprisingly, we found enhanced stress-induced apoptosis in TP53INP1-deficient cells. This observation is underpinned in different cell types in vivo (thymocytes) and in vitro (thymocytes and MEFs), following different types of injury inducing either p53-dependent or -independent cell death. Nevertheless, absence of TP53INP1 is unable to overcome impaired cell death of p53-deficient thymocytes. Stress-induced ROS production is enhanced in the absence of TP53INP1, and antioxidant NAC complementation abolishes increased sensitivity to apoptosis of TP53INP1-deficient cells. Furthermore, antioxidant defenses are defective in TP53INP1-deficient mice in correlation with ROS dysregulation. Finally, we show that autophagy is reduced in TP53INP1-deficient cells both at the basal level and upon stress. Altogether, these data show that impaired ROS regulation in TP53INP1-deficient cells is responsible for their sensitivity to induced apoptosis. In addition, they suggest that this sensitivity could rely on a defect of autophagy. Therefore, these data emphasize the role of TP53INP1 in protection against cell injury.
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Affiliation(s)
- Prudence N'guessan
- INSERM U624 Stress cellulaire, Case 915 Parc Scientifique de Luminy, Marseille Cedex 9, France
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11
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Seux M, Peuget S, Montero MP, Siret C, Rigot V, Clerc P, Gigoux V, Pellegrino E, Pouyet L, N'Guessan P, Garcia S, Dufresne M, Iovanna JL, Carrier A, André F, Dusetti NJ. TP53INP1 decreases pancreatic cancer cell migration by regulating SPARC expression. Oncogene 2011; 30:3049-61. [PMID: 21339733 DOI: 10.1038/onc.2011.25] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Tumor protein 53 induced nuclear protein 1 (TP53INP1) is a p53 target gene that induces cell growth arrest and apoptosis by modulating p53 transcriptional activity. TP53INP1 interacts physically with p53 and is a major player in the p53-driven oxidative stress response. Previously, we demonstrated that TP53INP1 is downregulated in an early stage of pancreatic cancerogenesis and when restored is able to suppress pancreatic tumor development. TP53INP1 downregulation in pancreas is associated with an oncogenic microRNA miR-155. In the present work, we studied the effects of TP53INP1 on cell migration. We found that TP53INP1 inactivation correlates with increased cell migration both in vivo and in vitro. The impact of TP53INP1 expression on cell migration was studied in different cellular contexts: mouse embryonic fibroblast and different pancreatic cancer cell lines. Its expression decreases cell migration by the transcriptional downregulation of secreted protein acidic and rich in cysteine (SPARC). SPARC is a matrix cellular protein, which governs diverse cellular functions and has a pivotal role in regulating cell-matrix interactions, cellular proliferation and migration. SPARC was also showed to be upregulated in normal pancreas and in pancreatic intraepithelial neoplasia lesions in a pancreatic adenocarcinoma mouse model only in the TP53INP1-deficient animals. This novel TP53INP1 activity on the regulation of SPARC expression could explain in part its tumor suppressor function in pancreatic adenocarcinoma by modulating cellular spreading during the metastatic process.
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Affiliation(s)
- M Seux
- INSERM, U624 Stress cellulaire, Marseille, France
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12
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Cano CE, Gommeaux J, Pietri S, Culcasi M, Garcia S, Seux M, Barelier S, Vasseur S, Spoto RP, Pébusque MJ, Dusetti NJ, Iovanna JL, Carrier A. Tumor protein 53-induced nuclear protein 1 is a major mediator of p53 antioxidant function. Cancer Res 2009; 69:219-26. [PMID: 19118006 DOI: 10.1158/0008-5472.can-08-2320] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
p53 exerts its tumor suppressor function mainly through transcriptional induction of target genes involved in several processes, including cell cycle checkpoints, apoptosis, and regulation of cell redox status. p53 antioxidant function is dependent on its transcriptional activity and proceeds by sequential induction of antioxidant and proapoptotic targets. However, none of the thus far renowned p53 targets have proved able to abolish on their own the intracellular reactive oxygen species (ROS) accumulation caused by p53 deficiency, therefore pointing to the existence of other prominent and yet unknown p53 antioxidant targets. Here, we show that TP53INP1 represents such a target. Indeed, TP53INP1 transcript induction on oxidative stress is strictly dependent on p53. Mouse embryonic fibroblasts (MEF) and splenocytes derived from TP53INP1-deficient (inp1(-/-)) mice accumulate intracellular ROS, whereas overexpression of TP53INP1 in p53-deficient MEFs rescues ROS levels to those of p53-proficient cells, indicating that TP53INP1 antioxidant function is p53 independent. Furthermore, accumulation of ROS in inp1(-/-) cells on oxidant challenge is associated with decreased expression of p53 targets p21/Cdkn1a, Sesn2, TAp73, Puma, and Bax. Mutation of p53 Ser(58) (equivalent to human p53 Ser(46)) abrogates transcription of these genes, indicating that TP53INP1-mediated p53 Ser(58) phosphorylation is implicated in this process. In addition, TP53INP1 deficiency results in an antioxidant (N-acetylcysteine)-sensitive acceleration of cell proliferation. Finally, TP53INP1 deficiency increases oxidative stress-related lymphoma incidence and decreases survival of p53(+/-) mice. In conclusion, our data show that TP53INP1 is a major actor of p53-driven oxidative stress response that possesses both a p53-independent intracellular ROS regulatory function and a p53-dependent transcription regulatory function.
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Affiliation(s)
- Carla E Cano
- Institut National de la Santé et de la Recherche Médicale, U624 Stress cellulaire, 915 Parc Scientifique de Luminy, 13288 Marseille Cedex 9, France
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13
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Gironella M, Seux M, Xie MJ, Cano C, Tomasini R, Gommeaux J, Garcia S, Nowak J, Yeung ML, Jeang KT, Chaix A, Fazli L, Motoo Y, Wang Q, Rocchi P, Russo A, Gleave M, Dagorn JC, Iovanna JL, Carrier A, Pébusque MJ, Dusetti NJ. Tumor protein 53-induced nuclear protein 1 expression is repressed by miR-155, and its restoration inhibits pancreatic tumor development. Proc Natl Acad Sci U S A 2007; 104:16170-5. [PMID: 17911264 PMCID: PMC2042180 DOI: 10.1073/pnas.0703942104] [Citation(s) in RCA: 414] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Pancreatic cancer is a disease with an extremely poor prognosis. Tumor protein 53-induced nuclear protein 1 (TP53INP1) is a proapoptotic stress-induced p53 target gene. In this article, we show by immunohistochemical analysis that TP53INP1 expression is dramatically reduced in pancreatic ductal adenocarcinoma (PDAC) and this decrease occurs early during pancreatic cancer development. TP53INP1 reexpression in the pancreatic cancer-derived cell line MiaPaCa2 strongly reduced its capacity to form s.c., i.p., and intrapancreatic tumors in nude mice. This anti-tumoral capacity is, at least in part, due to the induction of caspase 3-mediated apoptosis. In addition, TP53INP1(-/-) mouse embryonic fibroblasts (MEFs) transformed with a retrovirus expressing E1A/ras(V12) oncoproteins developed bigger tumors than TP53INP1(+/+) transformed MEFs or TP53INP1(-/-) transformed MEFs with restored TP53INP1 expression. Finally, TP53INP1 expression is repressed by the oncogenic micro RNA miR-155, which is overexpressed in PDAC cells. TP53INP1 is a previously unknown miR-155 target presenting anti-tumoral activity.
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MESH Headings
- Animals
- Base Sequence
- Carcinoma, Pancreatic Ductal/genetics
- Carcinoma, Pancreatic Ductal/metabolism
- Carcinoma, Pancreatic Ductal/pathology
- Carcinoma, Pancreatic Ductal/prevention & control
- Carrier Proteins/genetics
- Carrier Proteins/metabolism
- Cell Line, Tumor
- Cell Transformation, Neoplastic
- Gene Expression
- Heat-Shock Proteins/genetics
- Heat-Shock Proteins/metabolism
- Humans
- Mice
- Mice, Knockout
- Mice, Nude
- MicroRNAs/genetics
- Neoplasm Transplantation
- Nuclear Proteins/deficiency
- Nuclear Proteins/genetics
- Nuclear Proteins/metabolism
- Pancreatic Neoplasms/genetics
- Pancreatic Neoplasms/metabolism
- Pancreatic Neoplasms/pathology
- Pancreatic Neoplasms/prevention & control
- RNA, Neoplasm/genetics
- Transplantation, Heterologous
- Tumor Suppressor Protein p53/metabolism
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Affiliation(s)
- Meritxell Gironella
- *Institut National de la Santé et de la Recherche Médicale, U624 “Stress Cellulaire,” F-13288 Marseille, France
- Aix-Marseille Université, Campus de Luminy, F-13000 Marseille, France
| | - Mylène Seux
- *Institut National de la Santé et de la Recherche Médicale, U624 “Stress Cellulaire,” F-13288 Marseille, France
- Aix-Marseille Université, Campus de Luminy, F-13000 Marseille, France
| | - Min-Jue Xie
- *Institut National de la Santé et de la Recherche Médicale, U624 “Stress Cellulaire,” F-13288 Marseille, France
| | - Carla Cano
- *Institut National de la Santé et de la Recherche Médicale, U624 “Stress Cellulaire,” F-13288 Marseille, France
- Aix-Marseille Université, Campus de Luminy, F-13000 Marseille, France
| | - Richard Tomasini
- *Institut National de la Santé et de la Recherche Médicale, U624 “Stress Cellulaire,” F-13288 Marseille, France
- Aix-Marseille Université, Campus de Luminy, F-13000 Marseille, France
| | - Julien Gommeaux
- *Institut National de la Santé et de la Recherche Médicale, U624 “Stress Cellulaire,” F-13288 Marseille, France
- Aix-Marseille Université, Campus de Luminy, F-13000 Marseille, France
| | - Stephane Garcia
- *Institut National de la Santé et de la Recherche Médicale, U624 “Stress Cellulaire,” F-13288 Marseille, France
- Aix-Marseille Université, Campus de Luminy, F-13000 Marseille, France
| | - Jonathan Nowak
- *Institut National de la Santé et de la Recherche Médicale, U624 “Stress Cellulaire,” F-13288 Marseille, France
- Aix-Marseille Université, Campus de Luminy, F-13000 Marseille, France
| | - Man Lung Yeung
- Laboratory of Molecular Microbiology, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892
| | - Kuan-Teh Jeang
- Laboratory of Molecular Microbiology, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892
| | - Amandine Chaix
- *Institut National de la Santé et de la Recherche Médicale, U624 “Stress Cellulaire,” F-13288 Marseille, France
- Aix-Marseille Université, Campus de Luminy, F-13000 Marseille, France
| | - Ladan Fazli
- Prostate Centre at Vancouver General Hospital, Vancouver, BC, Canada V6H 3Z6
| | - Yoshiharu Motoo
- Department of Medical Oncology, Kanazawa Medical University, Ishikawa 920-0293, Japan
| | - Qing Wang
- Unité d'Oncologie Moléculaire and Institut National de la Santé et de la Recherche Médicale U590, Centre Léon Bérard, 69008 Lyon, France; and
| | - Palma Rocchi
- *Institut National de la Santé et de la Recherche Médicale, U624 “Stress Cellulaire,” F-13288 Marseille, France
- Aix-Marseille Université, Campus de Luminy, F-13000 Marseille, France
| | - Antonio Russo
- **Interdepartmental Center of Clinical Oncology, Università di Palermo, 90127 Palermo, Italy
| | - Martin Gleave
- Prostate Centre at Vancouver General Hospital, Vancouver, BC, Canada V6H 3Z6
| | - Jean-Charles Dagorn
- *Institut National de la Santé et de la Recherche Médicale, U624 “Stress Cellulaire,” F-13288 Marseille, France
- Aix-Marseille Université, Campus de Luminy, F-13000 Marseille, France
| | - Juan L. Iovanna
- *Institut National de la Santé et de la Recherche Médicale, U624 “Stress Cellulaire,” F-13288 Marseille, France
- Aix-Marseille Université, Campus de Luminy, F-13000 Marseille, France
| | - Alice Carrier
- *Institut National de la Santé et de la Recherche Médicale, U624 “Stress Cellulaire,” F-13288 Marseille, France
- Aix-Marseille Université, Campus de Luminy, F-13000 Marseille, France
| | - Marie-Josèphe Pébusque
- *Institut National de la Santé et de la Recherche Médicale, U624 “Stress Cellulaire,” F-13288 Marseille, France
- Aix-Marseille Université, Campus de Luminy, F-13000 Marseille, France
| | - Nelson J. Dusetti
- *Institut National de la Santé et de la Recherche Médicale, U624 “Stress Cellulaire,” F-13288 Marseille, France
- Aix-Marseille Université, Campus de Luminy, F-13000 Marseille, France
- To whom correspondence should be addressed.
INSERM U624, Stress Cellulaire, 13288 Marseille, France. E-mail:
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14
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Tomasini R, Seux M, Nowak J, Bontemps C, Carrier A, Dagorn JC, Pébusque MJ, Iovanna JL, Dusetti NJ. TP53INP1 is a novel p73 target gene that induces cell cycle arrest and cell death by modulating p73 transcriptional activity. Oncogene 2006; 24:8093-104. [PMID: 16044147 DOI: 10.1038/sj.onc.1208951] [Citation(s) in RCA: 107] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
TP53INP1 is an alternatively spliced gene encoding two nuclear protein isoforms (TP53INP1alpha and TP53INP1beta), whose transcription is activated by p53. When overexpressed, both isoforms induce cell cycle arrest in G1 and enhance p53-mediated apoptosis. TP53INP1s also interact with the p53 gene and regulate p53 transcriptional activity. We report here that TP53INP1 expression is induced during experimental acute pancreatitis in p53-/- mice and in cisplatin-treated p53-/- mouse embryo fibroblasts (MEFs). We demonstrate that ectopic expression of p73, a p53 homologue, leads to TP53INP1 induction in p53-deficient cells. In turn, TP53INP1s alters the transactivation capacity of p73 on several p53-target genes, including TP53INP1 itself, demonstrating a functional association between p73 and TP53INP1s. Also, when overexpressed in p53-deficient cells, TP53INP1s inhibit cell growth and promote cell death as assessed by cell cycle analysis and colony formation assays. Finally, we show that TP53INP1s potentiate the capacity of p73 to inhibit cell growth, that effect being prevented when the p53 mutant R175H is expressed or when p73 expression is blocked by a siRNA. These results suggest that TP53INP1s are functionally associated with p73 to regulate cell cycle progression and apoptosis, independently from p53.
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Affiliation(s)
- Richard Tomasini
- INSERM U624, Stress Cellulaire, IFR 137-Institut de Cancérologie et Immunologie de Marseille, Université de la Méditerranée, Marseille, France
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