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Ricordel C, Chaillot L, Vlachavas EI, Logotheti M, Jouannic A, Desvallees T, Lecuyer G, Aubry M, Kontogianni G, Mastrokalou C, Jouan F, Jarry U, Corre R, Le Guen Y, Guillaudeux T, Lena H, Chatziioannou A, Pedeux R. Genomic characteristics and clinical significance of CD56+ circulating tumor cells in small cell lung cancer. Sci Rep 2023; 13:3626. [PMID: 36869231 PMCID: PMC9984363 DOI: 10.1038/s41598-023-30536-9] [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] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 02/24/2023] [Indexed: 03/05/2023] Open
Abstract
Circulating tumor cells (CTC) have been studied in various solid tumors but clinical utility of CTC in small cell lung cancer (SCLC) remains unclear. The aim of the CTC-CPC study was to develop an EpCAM-independent CTC isolation method allowing isolation of a broader range of living CTC from SCLC and decipher their genomic and biological characteristics. CTC-CPC is a monocentric prospective non-interventional study including treatment-naïve newly diagnosed SCLC. CD56+ CTC were isolated from whole blood samples, at diagnosis and relapse after first-line treatment and submitted to whole-exome-sequencing (WES). Phenotypic study confirms tumor lineage and tumorigenic properties of isolated cells for the 4 patients analyzed with WES. WES of CD56+ CTC and matched tumor biopsy reveal genomic alteration frequently impaired in SCLC. At diagnosis CD56+ CTC were characterized by a high mutation load, a distinct mutational profile and a unique genomic signature, compared to match tumors biopsies. In addition to classical pathways altered in SCLC, we found new biological processes specifically affected in CD56+ CTC at diagnosis. High numeration of CD56+ CTC (> 7/ml) at diagnosis was associated with ES-SCLC. Comparing CD56+ CTC isolated at diagnosis and relapse, we identify differentially altered oncogenic pathways (e.g. DLL3 or MAPK pathway). We report a versatile method of CD56+ CTC detection in SCLC. Numeration of CD56+ CTC at diagnosis is correlated with disease extension. Isolated CD56+ CTC are tumorigenic and show a distinct mutational profile. We report a minimal gene set as a unique signature of CD56+ CTC and identify new affected biological pathways enriched in EpCAM-independent isolated CTC in SCLC.
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Affiliation(s)
- Charles Ricordel
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France.
- Service de Pneumologie, Hôpital Pontchaillou, CHU Rennes, 2 Rue Henri Le Guilloux, 35033, Rennes, France.
| | - L Chaillot
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France
| | - E I Vlachavas
- e-NIOS PC, Kallithea-Athens, Greece
- Division of Molecular Genome Analysis (B050), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
| | | | - A Jouannic
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France
| | - T Desvallees
- CNRS, INSERM, BIOSIT UAR 3480, US_S 018, Oncotrial, Univ Rennes, 35000, Rennes, France
- Unité De Pharmacologie Préclinique, Biotrial Pharmacology, Rennes, France
| | - G Lecuyer
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France
| | - M Aubry
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France
| | - G Kontogianni
- Centre of Systems Biology, Biomedical Research Foundation of the Academy of Athens, 4 Soranou Ephessiou Street, 11527, Athens, Greece
| | | | - F Jouan
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France
| | - U Jarry
- CNRS, INSERM, BIOSIT UAR 3480, US_S 018, Oncotrial, Univ Rennes, 35000, Rennes, France
- Unité De Pharmacologie Préclinique, Biotrial Pharmacology, Rennes, France
| | - R Corre
- Service de Pneumologie, Hôpital Pontchaillou, CHU Rennes, 2 Rue Henri Le Guilloux, 35033, Rennes, France
| | - Y Le Guen
- Service de Pneumologie, Hôpital Pontchaillou, CHU Rennes, 2 Rue Henri Le Guilloux, 35033, Rennes, France
| | - T Guillaudeux
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France
- CNRS, INSERM, BIOSIT UAR 3480, US_S 018, Oncotrial, Univ Rennes, 35000, Rennes, France
| | - H Lena
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France
- Service de Pneumologie, Hôpital Pontchaillou, CHU Rennes, 2 Rue Henri Le Guilloux, 35033, Rennes, France
| | - A Chatziioannou
- e-NIOS PC, Kallithea-Athens, Greece
- Centre of Systems Biology, Biomedical Research Foundation of the Academy of Athens, 4 Soranou Ephessiou Street, 11527, Athens, Greece
| | - Rémy Pedeux
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France.
- CNRS, INSERM, BIOSIT UAR 3480, US_S 018, Oncotrial, Univ Rennes, 35000, Rennes, France.
- CLCC Eugène Marquis, INSERM U1242-OSS, Université Rennes 1, Rue Bataille Flandres Dunkerque, 35042, Rennes, France.
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Baudry G, Aubry M, Hugon-Vallet E, Mocan R, Chalabreysse L, Portran P, Obadia JF, Thaunat O, Girerd N, Dubois V, Sebbag L. De-novo complement binding anti-HLA antibodies in heart transplanted patients is associated with severe cardiac allograft vasculopathy and poor long-term survival. Archives of Cardiovascular Diseases Supplements 2023. [DOI: 10.1016/j.acvdsp.2022.10.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Ricordel C, Chaillot L, Vlachavas EI, Logotheti M, Desvallees T, Aubry M, Kontogianni G, Mastrokalou C, Jouan F, Jarry U, Guillaudeux T, Léna H, Chatziioannou A, Pedeux R. EP16.02-004 Clinical Significance and Genomic Characteristics of CD56+ Circulating Tumor Cells in Small Cell Lung Carcinoma. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.1035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Johar J, Houston S, Kipp B, Yi J, Aubry M, Castonguay M. P38.17 Pulmonary Small Cell Carcinoma with Rhabdomyoblastic Differentiation: A Previously Unreported Occurrence. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Aubry M, Cao-Lormeau VM. History of arthropod-borne virus infections in French Polynesia. New Microbes New Infect 2019; 29:100513. [PMID: 30899520 PMCID: PMC6407142 DOI: 10.1016/j.nmni.2019.01.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 09/20/2018] [Revised: 01/16/2019] [Accepted: 01/25/2019] [Indexed: 12/27/2022] Open
Abstract
In French Polynesia, arthropod-borne diseases are major public health problems. From the mid-1940s, the four serotypes of dengue virus (DENV-1 to -4) have caused 15 epidemics of variable severity. In 2013, for the first time, a sustained co-circulation of two different DENV serotypes (DENV-1 and -3) was reported. The same year, Zika virus (ZIKV) caused the largest outbreak ever recorded at that time. Severe neurologic complications in adults, including Guillain-Barré syndrome and central nervous system malformations in newborns and foeteuses, such as microcephaly, were reported, and a causal link with ZIKV infection was established. In addition to mosquito-borne transmission, the potential for perinatal, sexual and blood-transfusion transmission of ZIKV was demonstrated. In 2014, chikungunya virus (CHIKV) caused an explosive outbreak. Series of Guillain-Barré syndrome temporally associated with the CHIKV epidemic were reported. Except for DENV, ZIKV and CHIKV, no other arboviruses have been detected so far, but serologic evidence suggested the past silent circulation of Ross River virus. From May 2015 DENV-1 has been the only arbovirus transmitted in French Polynesia, but the reemergence of DENV-2 is highly expected since the detection of two autochthonous cases of DENV-2 infection in June 2018.
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Affiliation(s)
- M Aubry
- Institut Louis Malardé, Tahiti, French Polynesia
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Kosari F, Bhinge K, Peikert T, Mansfield A, Aubry M, Yang L, Muppa P, Kovtun I, Vasmatzis G, Murphy S. P1.13-12 EGFR Therapy in ASCL1 Positive Lung Adenocarcinoma. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Aubry M, Laughhunn A, Santa Maria F, Lanteri MC, Stassinopoulos A, Musso D. Amustaline (S-303) treatment inactivates high levels of Chikungunya virus in red-blood-cell components. Vox Sang 2018; 113:232-241. [PMID: 29314033 DOI: 10.1111/vox.12626] [Citation(s) in RCA: 6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 11/16/2017] [Accepted: 11/16/2017] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVES Chikungunya virus (CHIKV) infections have been reported in all continents, and the potential risk for CHIKV transfusion-transmitted infections (TTIs) was demonstrated by the detection of CHIKV RNA-positive donations in several countries. TTIs can be reduced by pathogen inactivation (PI) of blood products. In this study, we evaluated the efficacy of amustaline and glutathione (S-303/GSH) to inactivate CHIKV in red-blood-cell concentrates (RBCs). MATERIAL AND METHODS Red-blood-cells were spiked with high level of CHIKV. Infectious titres and RNA loads were measured before and after PI treatment. Residual CHIKV infectivity was also assessed after five successive cell culture passages. RESULTS The mean CHIKV titres in RBCs before inactivation was 5·81 ± 0·18 log10 50% tissue culture infectious dose (TCID50 )/mL, and the mean viral RNA load was 10·49 ± 0·15 log10 genome equivalent (GEq)/mL. No CHIKV TCID was detected after S-303 treatment nor was replicative CHIKV particles and viral RNA present after five cell culture passages of samples obtained immediately after S-303 treatment. CONCLUSION Chikungunya virus was previously shown to be inactivated by the PI technology using amotosalen and ultraviolet A light for the treatment of plasma and platelets. This new study demonstrates that S-303/GSH can inactivate high titres of CHIKV in RBCs.
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Affiliation(s)
- M Aubry
- Pôle de recherche et de veille sur les maladies infectieuses émergentes, Institut Louis Malardé, Tahiti, French Polynesia.,Aix Marseille Univ, IRD (Dakar, Marseille, Papeete), AP-HM, IHU-Méditerranée Infection, UMR Vecteurs - Infections Tropicales et Méditerranéennes (VITROME), Marseille, France
| | | | | | | | | | - D Musso
- Pôle de recherche et de veille sur les maladies infectieuses émergentes, Institut Louis Malardé, Tahiti, French Polynesia.,Aix Marseille Univ, IRD (Dakar, Marseille, Papeete), AP-HM, IHU-Méditerranée Infection, UMR Vecteurs - Infections Tropicales et Méditerranéennes (VITROME), Marseille, France
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Xie D, Allen M, Marks R, Jiang G, Sun Z, Nichols F, Zhang M, Aubry M, Jatoi A, Garces Y, Mansfield A, Wigle D, Molina J, Deschamps C, Yang P. O-061NOMOGRAM PREDICTS OVERALL SURVIVAL FOR PATIENTS WITH NON-SMALL CELL LUNG CANCER INCORPORATING PRETREATMENT PERIPHERAL BLOOD MARKERS. Interact Cardiovasc Thorac Surg 2017. [DOI: 10.1093/icvts/ivx280.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Caillot O, Aubry M, Duros S, Boyer L, Van Valenberg C, Levêque J, Lavoué V. Impact of the French 3rd and 4th generation pill scare in women seeking termination of pregnancy. J Gynecol Obstet Hum Reprod 2017; 46:69-76. [PMID: 28403959 DOI: 10.1016/j.jgyn.2016.03.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 02/06/2016] [Revised: 03/23/2016] [Accepted: 03/23/2016] [Indexed: 11/28/2022]
Abstract
INTRODUCTION The aim of this study was to evaluate changes in the contraceptive profile of women seeking termination of pregnancy following the debate on 3rd and 4th generation pills in France in 2012. MATERIALS AND METHODS Single-center case-control study comparing the attitude to contraception before (between 02/15/2012 and 07/16/2012) and after the debate (between 02/25/2013 and 06/24/2013). RESULTS A total of 291 patients consulted before and 601 after the debate. We showed that there were more students (+9.5%), more single women (+8.3%) and fewer working women (-7.7%) in the cohort after the debate. After the termination procedure, prescriptions for long-acting reversible contraceptive (LARC) methods increased (+7.8%, P=0.03), in particular in patients aged 25 or younger, including nulliparous (+12.6%, P=0.02). CONCLUSION The media alert about the pill led to a change in the contraceptive standard in the post-abortion period and altered patient profiles. An increase was notably observed in certain vulnerable populations (high school students, unemployed and single women). It remains to be seen whether these changes are transient or permanent.
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Affiliation(s)
- O Caillot
- Rennes University Hospital, Department of Gynecology, hôpital Sud, 16, boulevard de Bulgarie, 35700 Rennes, France; University of Rennes 1, Faculty of Medicine, 35043 Rennes, France
| | - M Aubry
- University of Rennes 1, UEB, UMS 3480 Biosit, Faculty of Medicine, 35043 Rennes, France; Environmental and Human Genomics Facility, University of Rennes 1, 35043 Rennes, France
| | - S Duros
- Rennes University Hospital, Department of Gynecology, hôpital Sud, 16, boulevard de Bulgarie, 35700 Rennes, France; University of Rennes 1, Faculty of Medicine, 35043 Rennes, France
| | - L Boyer
- Rennes University Hospital, Department of Gynecology, hôpital Sud, 16, boulevard de Bulgarie, 35700 Rennes, France
| | - C Van Valenberg
- Rennes University Hospital, Department of Gynecology, hôpital Sud, 16, boulevard de Bulgarie, 35700 Rennes, France
| | - J Levêque
- Rennes University Hospital, Department of Gynecology, hôpital Sud, 16, boulevard de Bulgarie, 35700 Rennes, France; University of Rennes 1, Faculty of Medicine, 35043 Rennes, France; ER 440, OSS, Inserm, 35000 Rennes, France
| | - V Lavoué
- Rennes University Hospital, Department of Gynecology, hôpital Sud, 16, boulevard de Bulgarie, 35700 Rennes, France; University of Rennes 1, Faculty of Medicine, 35043 Rennes, France; ER 440, OSS, Inserm, 35000 Rennes, France.
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Musso D, Broult J, Bierlaire D, Lanteri MC, Aubry M. Prevention of transfusion-transmitted Zika virus in French Polynesia, nucleic acid testing versus pathogen inactivation. ACTA ACUST UNITED AC 2016. [DOI: 10.1111/voxs.12335] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- D. Musso
- Pôle de recherche et de veille sur les maladies infectieuses émergentes; Institut Louis Malardé; Tahiti Polynésie Française
| | - J. Broult
- Centre de transfusion sanguine; Hôpital du Taaone; Tahiti Polynésie Française
| | - D. Bierlaire
- Unité d'hémovigilence; Hôpital du Taaone; Tahiti Polynésie Française
| | | | - M. Aubry
- Pôle de recherche et de veille sur les maladies infectieuses émergentes; Institut Louis Malardé; Tahiti Polynésie Française
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Aubry M, Richard V, Green J, Broult J, Musso D. Inactivation du virus zika par amotosalen et illumination aux ultraviolets A. Transfus Clin Biol 2015. [DOI: 10.1016/j.tracli.2015.06.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Aubry M, de Tayrac M, Etcheverry A, Clavreul A, Saikali S, Menei P, Mosser J. O4.04 * 'FROM THE CORE TO BEYOND THE MARGIN': A GENOMIC PICTURE OF GLIOBLASTOMA INTRATUMOR HETEROGENEITY. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou174.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Corcos L, Pesson M, Uguen A, Trillet K, Redon S, De La Grange P, Aubry M, Robaszkiewicz M, Le Gac G. 646: Predicting colon cancer occurrence from transcriptomic, splicing and genomic data in colon adenomas. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50566-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Doyard M, Fatih N, Monnier A, Island ML, Aubry M, Leroyer P, Bouvet R, Chalès G, Mosser J, Loréal O, Guggenbuhl P. Iron excess limits HHIPL-2 gene expression and decreases osteoblastic activity in human MG-63 cells. Osteoporos Int 2012; 23:2435-45. [PMID: 22237814 DOI: 10.1007/s00198-011-1871-z] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Accepted: 12/05/2011] [Indexed: 01/10/2023]
Abstract
UNLABELLED In order to understand mechanisms involved in osteoporosis observed during iron overload diseases, we analyzed the impact of iron on a human osteoblast-like cell line. Iron exposure decreases osteoblast phenotype. HHIPL-2 is an iron-modulated gene which could contribute to these alterations. Our results suggest osteoblast impairment in iron-related osteoporosis. INTRODUCTION Iron overload may cause osteoporosis. An iron-related decrease in osteoblast activity has been suggested. METHODS We investigated the effect of iron exposure on human osteoblast cells (MG-63) by analyzing the impact of ferric ammonium citrate (FAC) and iron citrate (FeCi) on the expression of genes involved in iron metabolism or associated with osteoblast phenotype. A transcriptomic analysis was performed to identify iron-modulated genes. RESULTS FAC and FeCi exposure modulated cellular iron status with a decrease in TFRC mRNA level and an increase in intracellular ferritin level. FAC increased ROS level and caspase 3 activity. Ferroportin, HFE and TFR2 mRNAs were expressed in MG-63 cells under basal conditions. The level of ferroportin mRNA was increased by iron, whereas HFE mRNA level was decreased. The level of mRNA alpha 1 collagen type I chain, osteocalcin and the transcriptional factor RUNX2 were decreased by iron. Transcriptomic analysis revealed that the mRNA level of HedgeHog Interacting Protein Like-2 (HHIPL-2) gene, encoding an inhibitor of the hedgehog signaling pathway, was decreased in the presence of FAC. Specific inhibition of HHIPL-2 expression decreased osteoblast marker mRNA levels. Purmorphamine, hedgehog pathway activator, increased the mRNA level of GLI1, a target gene for the hedgehog pathway, and decreased osteoblast marker levels. GLI1 mRNA level was increased under iron exposure. CONCLUSION We showed that in human MG-63 cells, iron exposure impacts iron metabolism and osteoblast gene expression. HHIPL-2 gene expression modulation may contribute to these alterations. Our results support a role of osteoblast impairment in iron-related osteoporosis.
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Affiliation(s)
- M Doyard
- INSERM, UMRU991, CHU Pontchaillou, 35033 Rennes Cedex, France
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Molina JR, Dy GK, Foster NR, Allen Ziegler KL, Adjei A, Rowland KM, Aubry M, Flynn PJ, Mandrekar SJ, Schild SE, Adjei AA. A randomized phase II study of pemetrexed (PEM) with or without sorafenib (S) as second-line therapy in advanced non-small cell lung cancer (NSCLC) of nonsquamous histology: NCCTG N0626 study. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.7513] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Yang P, Li Y, Sun Z, Cunningham JM, Aubry M, Wampfler JA, Croghan G, Johnson C, Wu D, Aakre J, Molina JR, Wang L, Pankratz VS. Genetic variations in multiple drug action pathways and survival in advanced-stage non-small cell lung cancer treated with chemotherapy. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.7009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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McCrory P, Meeuwisse W, Johnston K, Dvorak J, Aubry M, Molloy M, Cantu R. Consensus Statement on Concussion in Sport: the 3rd International Conference on Concussion in Sport held in Zurich, November 2008. Br J Sports Med 2010; 43 Suppl 1:i76-90. [PMID: 19433429 DOI: 10.1136/bjsm.2009.058248] [Citation(s) in RCA: 371] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- P McCrory
- Centre for Health, Exercise & Sports Medicine, University of Melbourne, Parkville, Australia.
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Abstract
OBJECTIVE To examine the published literature relating to the difference in concussion management strategies between elite and non-elite athletes. DESIGN Systematic literature review of concussion management. INTERVENTION Pubmed, Medline, Psych Info, Cochrane Library and Sport Discus databases were reviewed using the MeSH keywords brain concussion and mild traumatic brain injury, combined with athletic injuries. Each were then refined by adding the keyword "return to play" (RTP). English language and human studies only were assessed. RESULTS For the Medline search, using "brain concussion" as a keyword, 4319 articles were found; this was decreased to 111 when RTP was used to refine the search. When "mild traumatic brain injury" was used, 2509 articles were found; this decreased to 39 when RTP was used to refine the search. Following initial review, these articles form the basis of the discussion below. CONCLUSIONS The non-elite athlete may not have the same resources available as the elite athlete (such as the presence of trained medical staff during practice and competition, a concussion programme as part of sideline preparedness, the benefit of neuropsychological or postural testing, as well as consultants with expertise in concussion readily available) and as a result will generally be managed more conservatively. Younger athletes often have a greater incidence of concussion with longer recovery time frames; however, they are often managed with less expertise and with limited resources.
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Affiliation(s)
- M Putukian
- Princeton University, University Health Services, Washington Road, Princeton, NJ 08540, USA.
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Yang P, Ebbert J, Chhatwani L, Wampfler JA, Stoddard S, Zhang F, de Andrade M, Aubry M. Clinical features of bronchioloalveolar carcinoma with new histologic and staging definitions. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.7097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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McCrory P, Meeuwisse W, Johnston K, Dvorak J, Aubry M, Molloy M, Cantu R. Consensus Statement on Concussion in Sport – the 3rd International Conference on Concussion in Sport held in Zurich, November 2008. S Afr J SM 2009. [DOI: 10.17159/2413-3108/2009/v21i2a296] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
No Abstract.
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McCrory P, Meeuwisse W, Johnston K, Dvorak J, Aubry M, Molloy M, Cantu R. Consensus Statement on Concussion in Sport – the 3rd International Conference on Concussion in Sport held in Zurich, November 2008. S Afr j sports med 2009. [DOI: 10.17159/2078-516x/2009/v21i2a296] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
No Abstract.
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Aubry M, Pialoux P, Burgeat M, Danon J, Fontelle P, Heuleu JN, Hamonet C. Etude D'Une Méthode D'Explorations Fonctionnelles Des Syndromes Vestibulaires Par L'Association De L'électronystagmographie, De L'électromyographie Et De La Statokinésimétrie. Acta Otolaryngol 2009. [DOI: 10.3109/00016486809120954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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25
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Aubry M, Burgeat M, Pialoux P. Les Variations De La Réponse Du Nerf Cochléaire Chez Le Cobaye, En Fonction D'Une Stimulation Sonore Iterative Prolongee. Acta Otolaryngol 2009. [DOI: 10.3109/00016486309138738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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26
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27
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McCrory P, Meeuwisse W, Johnston K, Dvorak J, Aubry M, Molloy M, Cantu R. Consensus statement on Concussion in Sport--the 3rd International Conference on Concussion in Sport held in Zurich, November 2008. J Sci Med Sport 2009; 12:340-51. [PMID: 19362052 DOI: 10.1016/j.jsams.2009.02.004] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- P McCrory
- Centre for Health, Exercise & Sports Medicine, University of Melbourne, Australia.
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28
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Holtan SG, Foster NR, Erlichman CE, Aubry M, Ames MM, Safgren S, Steen PD, Morton RF, Graham D, Goetz MP. Gemcitabine (G) and irinotecan (CPT-11) as first-line therapy for carcinoma (ca) of unknown primary (CUP): An NCCTG phase II trial. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.13525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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29
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Junge A, Engebretsen L, Alonso JM, Renstrom P, Mountjoy M, Aubry M, Dvorak J. Injury surveillance in multi-sport events: the International Olympic Committee approach. Br J Sports Med 2008; 42:413-21. [DOI: 10.1136/bjsm.2008.046631] [Citation(s) in RCA: 230] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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30
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Thome S, Hobday T, Hillman D, Aubry M, Lingle W, Reinholz M, Graham D, Flynn P, Moreno A, Perez E. Translational correlates, including outcome for patients with ER-/PR-/HER2- (triple negative (TNeg)) disease from N0234, a phase II trial of gemcitabine and erlotinib for pts with previously treated metastatic breast cancer (MBC). J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.1071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
1071 Background: N0234 is a phase II trial of gemcitabine at 1000 mg/m2 days 1 and 8 of a 21 day cycle and erlotinib at 150 mg daily in patients with previous therapy with either an anthracycline or a taxane for MBC. A partial response (PR) rate of 17% has been reported (ASCO 2005). Recent information suggests that over-expression of the EGFR pathway is frequent in patients with TNeg MBC. Methods: Tissue and serum were obtained for translational studies of ER, PR, HER2, and proteins related to EGFR pathway on tissue using immunohistochemistry; CK19, mammoglobin, and TTK on circulating tumor cells (CTCs). Markers were evaluated centrally, blinded to patient outcome. Complete data were available in 57 of 59 eligible patients; 20/57 patients (pts) were TNeg. Results: A PR rate of 25% and clinical benefit rate (PR + stable disease > 6 months)of 25% was observed in TNeg pts as compared to a PR rate of 14% (p = 0.30) and clinical benefit rate 22% (p= 0.75) for non-TNeg pts. Median progression free survival 72 days vs 98 days (p=0.13) and overall survival 227 days vs 738 days (p<0.001) were shorter for TNeg pts. Translational results for the EGFR pathway proteins and CTC analysis is forthcoming. Conclusions: The combination of gemcitabine and erlotinib appears to be as active in the non-TNeg and TNeg subset of patients on this trial. TNeg patients had an inferior clinical result, confirming the poor outcome seen in these patients. Data for the remaining biomarkers potentially predictive of activity will be presented. Supported by CA-25224, CA-37404. [Table: see text]
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Affiliation(s)
- S. Thome
- Missouri Valley Cancer Consortium, Omaha, NE; Mayo Clinic, Rochester, MN; Carle Clinic, Urbana, IL; Metro-Minnesota CCOP, St Louis Park, MN; Mayo Clinic, Jacksonville, FL
| | - T. Hobday
- Missouri Valley Cancer Consortium, Omaha, NE; Mayo Clinic, Rochester, MN; Carle Clinic, Urbana, IL; Metro-Minnesota CCOP, St Louis Park, MN; Mayo Clinic, Jacksonville, FL
| | - D. Hillman
- Missouri Valley Cancer Consortium, Omaha, NE; Mayo Clinic, Rochester, MN; Carle Clinic, Urbana, IL; Metro-Minnesota CCOP, St Louis Park, MN; Mayo Clinic, Jacksonville, FL
| | - M. Aubry
- Missouri Valley Cancer Consortium, Omaha, NE; Mayo Clinic, Rochester, MN; Carle Clinic, Urbana, IL; Metro-Minnesota CCOP, St Louis Park, MN; Mayo Clinic, Jacksonville, FL
| | - W. Lingle
- Missouri Valley Cancer Consortium, Omaha, NE; Mayo Clinic, Rochester, MN; Carle Clinic, Urbana, IL; Metro-Minnesota CCOP, St Louis Park, MN; Mayo Clinic, Jacksonville, FL
| | - M. Reinholz
- Missouri Valley Cancer Consortium, Omaha, NE; Mayo Clinic, Rochester, MN; Carle Clinic, Urbana, IL; Metro-Minnesota CCOP, St Louis Park, MN; Mayo Clinic, Jacksonville, FL
| | - D. Graham
- Missouri Valley Cancer Consortium, Omaha, NE; Mayo Clinic, Rochester, MN; Carle Clinic, Urbana, IL; Metro-Minnesota CCOP, St Louis Park, MN; Mayo Clinic, Jacksonville, FL
| | - P. Flynn
- Missouri Valley Cancer Consortium, Omaha, NE; Mayo Clinic, Rochester, MN; Carle Clinic, Urbana, IL; Metro-Minnesota CCOP, St Louis Park, MN; Mayo Clinic, Jacksonville, FL
| | - A. Moreno
- Missouri Valley Cancer Consortium, Omaha, NE; Mayo Clinic, Rochester, MN; Carle Clinic, Urbana, IL; Metro-Minnesota CCOP, St Louis Park, MN; Mayo Clinic, Jacksonville, FL
| | - E. Perez
- Missouri Valley Cancer Consortium, Omaha, NE; Mayo Clinic, Rochester, MN; Carle Clinic, Urbana, IL; Metro-Minnesota CCOP, St Louis Park, MN; Mayo Clinic, Jacksonville, FL
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31
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Abstract
The fentanyl HCl iontophoretic transdermal system (ITS) is a compact, needle-free, pre-programmed patient-controlled analgesic system that was developed to address limitations to existing therapies for postoperative pain management. A randomized, controlled trial was conducted in 11 European countries to evaluate the efficacy and safety of postoperative pain control using fentanyl ITS compared with a standard regimen of morphine provided by an intravenous patient-controlled analgesia (IV PCA) pump. This article summarizes results from Nurse Ease-of-Care Questionnaires which were completed to assess the convenience and ease of use of each pain management modality from the perspective of the nurse. Nurses' ratings of patient-care tasks associated with each pain management system were significantly more favourable for fentanyl ITS than for morphine IV PCA. These findings suggest that nurses consider fentanyl ITS to be easier to use than morphine IV PCA.
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Affiliation(s)
- P van Raders
- East and North Hertfordshire NHS Trust, Stevenage
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32
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Cantu RC, Aubry M, Dvorak J, Graf-Baumann T, Johnston K, Kelly J, Lovell M, McCrory P, Meeuwisse W, Schamasch P, Kevin M, Bruce SL, Ferrara MS, Kelly JP, McCrea M, Putukian M, McLeod TCV. Overview of concussion consensus statements since 2000. Neurosurg Focus 2006; 21:E3. [PMID: 17112193 DOI: 10.3171/foc.2006.21.4.4] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
More refereed publications on sports-related concussion have appeared since 2000 than in all previous years combined. Three international consensus statements, documents from the National Athletic Trainers' Association (NATA) and the American College of Sports Medicine (ACSM), and entire issues of the Clinical Journal of Sport Medicine and the Journal of Athletic Training have been devoted to this subject. The object of this article is to critique the consensus statements and NATA and ACSM documents, pointing out areas of controversy.
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Affiliation(s)
- Robert C Cantu
- Neurosurgery Service, Department of Surgery, and Sports Medicine Service, Emerson Hospital, Concord, Massachusetts 01742, USA.
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33
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Yang P, Sun Z, Aubry M, Wampfler J, Jiang R, Garces Y, Jatoi A, Clark M, Sloan JA. Multi-Dimensional Prognostic Factors for Lung Cancer. Am J Epidemiol 2006. [DOI: 10.1093/aje/163.suppl_11.s24-a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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34
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Abstract
The aims of this study were to investigate dental crowding from the Copper Age and examine the extent and patterns of wear. Crowding was estimated in 43 adult mandibles using Little's irregularity index. Dental wear, dental diameters, arch width and the presence of third molars were also studied as possible aetiological factors for crowding. The remains were found at the archaeological site of Roaix, located in the south of France. Radiocarbon dating indicated that the lower layer was from 2150 +/- 140 years BC (date +/- 1 standard deviation) and the upper level from 2090 +/- 140 years. The graves were estimated to contain the remains of 150 adults and 50 children. Forty-three intact mandibles were used for this study. All of the mandibles presented incisor crowding with a majority of minimal and moderate irregularities, but in seven cases there were extreme irregularities and in two canine impaction was observed. These results are in contrast with the literature where it is reported that malocclusions were rare in prehistoric populations. The findings of this study suggest that crowding may be of a genetic origin and might not be caused by excessive tooth size or changes in environmental factors (masticatory activity).
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Affiliation(s)
- O Mockers
- Department of Dentofacial Orthopaedics, Mediterranean University, Marseille, France
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35
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Aubry M, Mafart B, Donat B, Brau JJ. Brief communication: Study of noncarious cervical tooth lesions in samples of prehistoric, historic, and modern populations from the South of France. Am J Phys Anthropol 2003; 121:10-4. [PMID: 12687578 DOI: 10.1002/ajpa.10210] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Noncarious tooth lesions (NCTL) are frequent findings in contemporary dental practices. Unlike other dental and periodontal diseases, NCTL have not been studied in an anthropological context. The purpose of the present study was to compare the prevalence of NCTL in three archaeological samples from the Copper Age and Middle Ages and in subjects examined in three dental practices. Both archaeological samples and dental-practice subjects were from southern France. In the archaeological sample group, no NCTL were detected in 3,927 teeth from 259 individuals. In the dental-practice group, prevalence rates were in agreement with current epidemiological data. Our data also suggest that prevalence of NCTL increases with age and is higher in females. Premolars were the most affected tooth type. Occurrence of NCTL has long been attributed to toothbrushing and to erosion by intrinsic and extrinsic acids. More recently, occlusal stress associated with tooth flexure has been implicated. The reasons underlying the total absence of NCTL in archaeological samples are discussed. The most likely explanations involve differences in lifestyle, diet, and dental condition.
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Affiliation(s)
- M Aubry
- Laboratoire d'Anthropologie, Faculté de Médecine Secteur Nord, Université de la Méditerranée, UMR 6569, 13916 Marseille, France.
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36
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Lacan P, Souillet G, Aubry M, Promé D, Richelme-David S, Kister J, Wajcman H, Francina A. New alpha 2 globin chain variant with low oxygen affinity affecting the N-terminal residue and leading to N-acetylation [Hb Lyon-Bron alpha 1(NA1)Val --> Ac-Ala]. Am J Hematol 2002; 69:214-8. [PMID: 11891810 DOI: 10.1002/ajh.10051] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [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: 11/11/2022]
Abstract
Hemoglobin Lyon-Bron was found in two members of a family of German ascent presenting with a moderate normocytic anemia. In this alpha 2 globin variant, the N-terminal valine of the chain was replaced by an alanine. Electrospray mass spectrometry of the alpha chain showed that, as normally, the initiator methionine was cleaved during globin processing but that the N alpha-terminal group was totally acetylated. This resulted in structural modifications of a region crucial for oxygen binding. As a consequence, hemoglobin Lyon-Bron displayed both a reduced chloride effect and a decreased oxygen affinity, this last point explaining the apparent anemia.
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Affiliation(s)
- P Lacan
- Unité de Pathologie Moléculaire, Département de Biochimie, Hôpital Edouard Herriot, Lyon, France
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37
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Aubry M, Cantu R, Dvorak J, Graf-Baumann T, Johnston K, Kelly J, Lovell M, McCrory P, Meeuwisse W, Schamasch P. Summary and agreement statement of the First International Conference on Concussion in Sport, Vienna 2001. Recommendations for the improvement of safety and health of athletes who may suffer concussive injuries. Br J Sports Med 2002; 36:6-10. [PMID: 11867482 PMCID: PMC1724447 DOI: 10.1136/bjsm.36.1.6] [Citation(s) in RCA: 427] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- M Aubry
- Division of Neurosurgery, Montreal General Hospital, Quebec, Canada
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38
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Lacan P, Aubry M, Couprie N, Francina A. Hb Gerland [alpha55(E4)Val-->Ala (alpha2)]: a new neutral alpha chain variant involving the alpha2 gene. Hemoglobin 2001; 25:417-20. [PMID: 11791875 DOI: 10.1081/hem-100107879] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- P Lacan
- Molecular Pathology Unit, Department of Biochemistry, Edouard Herriot Hospital, Lyon, France
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39
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Côté F, Boisvert FM, Grondin B, Bazinet M, Goodyer CG, Bazett-Jones DP, Aubry M. Alternative promoter usage and splicing of ZNF74 multifinger gene produce protein isoforms with a different repressor activity and nuclear partitioning. DNA Cell Biol 2001; 20:159-73. [PMID: 11313019 DOI: 10.1089/104454901300069004] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [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: 01/06/2023] Open
Abstract
We have previously shown that ZNF74, a candidate gene for DiGeorge syndrome, encodes a developmentally expressed zinc finger gene of the Kruppel-associated box (KRAB) multifinger subfamily. Using RACE, RT-PCR, and primer extension on human fetal brain and heart mRNAs, we here demonstrate the existence of six mRNA variants resulting from alternative promoter usage and splicing. These transcripts encode four protein isoforms differing at their N terminus by the composition of their KRAB motif. One isoform, ZNF74-I, which corresponds to the originally cloned cDNA, was found to be encoded by two additional mRNA variants. This isoform, which contains a KRAB motif lacking the N terminus of the KRAB A box, was devoid of transcriptional activity. In contrast, ZNF74-II, a newly identified form of the protein that is encoded by a single transcript and contains an intact KRAB domain with full A and B boxes, showed strong repressor activity. Deconvolution immunofluorescence microscopy using transfected human neuroblastoma cells and nonimmortalized HS68 fibroblasts revealed a distinct subcellular distribution for ZNF74-I and ZNF74-II. In contrast to ZNF74-I, which largely colocalizes with SC-35 in nuclear speckles enriched in splicing factors, the transcriptionally active ZNF74-II had a more diffuse nuclear distribution that is more characteristic of transcriptional regulators. Taken with the previously described RNA-binding activity of ZNF74-I and direct interaction with a hyperphosphorylated form of the RNA polymerase II participating in pre-mRNA processing, our results suggest that the two ZNF74 isoforms exert different or complementary roles in RNA maturation and in transcriptional regulation.
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Affiliation(s)
- F Côté
- Département de Biochimie, Université de Montréal, Montréal, Québec, Canada
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40
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Lacan P, Drai J, Aubry M, Francina A, Orgiazzi J. A new beta-globin variant: Hb Sainte Eugénie [beta104(G6)Arg-->Trp] in a French Caucasian female. Hemoglobin 2000; 24:245-8. [PMID: 10975444 DOI: 10.3109/03630260008997532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- P Lacan
- Molecular Pathology Unit, Department of Biochemistry, Edouard Herriot Hospital, Lyon, France
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41
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Ravassard P, Côté F, Grondin B, Bazinet M, Mallet J, Aubry M. ZNF74, a gene deleted in DiGeorge syndrome, is expressed in human neural crest-derived tissues and foregut endoderm epithelia. Genomics 1999; 62:82-5. [PMID: 10585771 DOI: 10.1006/geno.1999.5982] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [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: 11/22/2022]
Abstract
DiGeorge syndrome (DGS) is a developmental disorder associated with large hemizygous deletions on chromosome 22q11.2. ZNF74 zinc finger gene is a candidate from the commonly deleted region. To address the potential involvement of ZNF74 in DGS, its human developmental expression pattern has been assessed. In situ hybridization on Carnegie Stage 18 embryos revealed that ZNF74 expression is limited to specific neural crest-derived tissues and neuroepithelium of the spinal cord as well as to foregut endoderm epithelia (esophagus and respiratory tract). Interestingly, ZNF74 expression was detected in the wall of the pulmonary artery and aorta and in the aortic valve, which are populated by neural crest-derived cells. This finding is significant, considering that DGS is believed to result from defective neural crest contributions and that outflow tract and aorticopulmonary septation defects are typical features of the DGS phenotype. Thus, the restricted expression of ZNF74 in structures affected in DGS suggests a role for this putative regulator of gene expression in aspects of the DGS phenotype.
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Affiliation(s)
- P Ravassard
- Laboratoire de Génétique Moléculaire de la Neurotransmission et des Processus Neurodégénératifs, CNRS-UMR C9923, Paris, France
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42
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Lacan P, Francina A, Souillet G, Aubry M, Couprie N, Dementhon L, Becchi M. Two new alpha chain variants: Hb Boghé [alpha58(E7)His-->Gln, alpha2], a variant on the distal histidine, and Hb CHarolles [alpha103(G10)His-Tyr, alpha1]. Hemoglobin 1999; 23:345-52. [PMID: 10569723 DOI: 10.3109/03630269909090750] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [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: 11/13/2022]
Abstract
The present paper reports two new alpha-globin chain variants: Hb Boghé [alpha58(E7)His-->Gln, alpha2] and Hb Charolles [alpha103(G10)His-->Tyr, alpha1]. Hb Boghé was found in a 12-month-old girl who was treated for malignant histiocytosis at 9 months of age and received a bone marrow transplant from her sister. Hb Boghé was undetectable by isoelectrofocusing and high performance liquid chromatography of hemoglobins. It was only revealed by polyacrylamide gel electrophoresis of globin chains in the presence of urea-Triton X-100 and accounted for 10% of the total hemoglobin. Hb Charolles was detected in a 46-year-old patient who presented with microcytosis and hypochromia. It was easily detected by isoelectrofocusing and high performance liquid chromatography. Hb Charolles accounted for 11% of the total hemoglobin. Characterization of the two hemoglobin variants was achieved by DNA and restriction enzyme analyses. Oxygen equilibrium curves measured on whole blood with Hb Boghé were normal. DNA sequencing revealed the association of Hb Charolles with a common mutation of the alpha2 polyadenylation site: AATAAA-->AATAAG.
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Affiliation(s)
- P Lacan
- Department of Biochemistry, Edouard Herriot Hospital, Lyon, France
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43
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Frenot Y, Aubry M, Misset MT, Gloaguen JC, Gourret JP, Lebouvier M. Phenotypic plasticity and genetic diversity in Poa annua L. (Poaceae) at Crozet and Kerguelen Islands (subantarctic). Polar Biol 1999. [DOI: 10.1007/s003000050423] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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44
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Lacan P, Aubry M, Francina A, Couprie N, Dementhon L, Becchi M. Characterization of Hb Djelfa [beta98(FG5)Val-->Ala]] by DNA sequencing in a French Caucasian family. Hemoglobin 1999; 23:73-7. [PMID: 10081988 DOI: 10.3109/03630269908996150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- P Lacan
- Department of Biochemistry, Edouard Herriot Hôpital, Lyon, France
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45
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Grondin B, Côté F, Bazinet M, Vincent M, Aubry M. Direct interaction of the KRAB/Cys2-His2 zinc finger protein ZNF74 with a hyperphosphorylated form of the RNA polymerase II largest subunit. J Biol Chem 1997; 272:27877-85. [PMID: 9346935 DOI: 10.1074/jbc.272.44.27877] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.0] [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: 02/05/2023] Open
Abstract
We previously identified ZNF74 as a developmentally expressed gene commonly deleted in DiGeorge syndrome. ZNF74 encodes an RNA-binding protein tightly associated with the nuclear matrix and belongs to a large subfamily of Cys2-His2 zinc finger proteins containing a KRAB (Kruppel-associated box) repressor motif. We now report on the multifunctionality of the zinc finger domain of ZNF74. This nucleic acid binding domain is shown here to function as a nuclear matrix targeting sequence and to be involved in protein-protein interaction. By far-Western analysis and coimmunoprecipitation studies, we demonstrate that ZNF74 interacts, via its zinc finger domain, with the hyperphosphorylated largest subunit of RNA polymerase II (pol IIo) but not with the hypophosphorylated form. The importance of the phosphorylation in this interaction is supported by the observation that phosphatase treatment inhibits ZNF74 binding. Double immunofluorescence experiments indicate that ZNF74 colocalizes with the pol IIo and the SC35 splicing factor in irregularly shaped subnuclear domains. Thus, ZNF74 sublocalization in nuclear domains enriched in pre-mRNA maturating factors, its RNA binding activity, and its direct phosphodependent interaction with the pol IIo, a form of the RNA polymerase functionally associated with pre- mRNA processing, suggest a role for this member of the KRAB multifinger protein family in RNA processing.
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Affiliation(s)
- B Grondin
- Institut de Recherches Cliniques de Montréal et Département de Médecine, Université de Montréal, Montréal, Québec H2W 1R7, Canada
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46
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Affiliation(s)
- P Lacan
- Department of Biochemistry, Edouard Herriot Hospital, Lyon, France
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47
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Aubry M, Poirot L. [Education by peers. Community health in school]. Soins 1997:37-40. [PMID: 9137075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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48
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Affiliation(s)
- C Frigerio
- Division of Immunology and Allergy, Centre Hospitalier Universitaire VAUDOIS, LAUSANNE, SWITZERLAND
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49
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Abstract
We previously cloned ZNF74, a developmentally expressed zinc finger gene commonly deleted in DiGeorge syndrome. Here, the intron/exon organization of the human gene and the functional properties of the expressed protein are presented. This zinc finger gene from the transcription factor IIIA/Kruppel family contains three exons. A truncated Kruppel-associated box (KRAB) located at the N terminus of the predicted 64-kDa zinc finger protein is encoded by exon 2. The remainder of the protein including the zinc finger domain as well as the 3'-untranslated region (UTR) is encoded by exon 3. Both 5'-UTR (exon 1) and 3'-UTR contain repetitive Alu elements. In vitro translation of a cDNA encoding the entire ZNF74 coding region produced a 63-kDa protein as determined on sodium dodecyl sulfate-polyacrylamide gel. A bacterially expressed fusion protein shown to bind tightly to 65zinc was used to test the nucleic acid binding properties of ZNF74. By RNA binding assays, ZNF74 was found to bind specifically to poly(U) and poly(G) RNA homopolymers. The restricted binding to these homopolymers and not to poly(A) and poly(C) suggested that ZNF74 displays RNA sequence preferences. RNA binding was mediated by the zinc finger domain. Immunofluorescence studies on transfected cells revealed ZNF74 nuclear localization. The labeling pattern observed in the nuclei clearly excluded the nucleoli. The zinc finger region lacks a classical nuclear localization signal but was found to be responsible for nuclear targeting. Subcellular and in situ sequential fractionations further showed that ZNF74 is associated with the nuclear matrix. The RNA binding properties of this protein and its tight association with the nuclear matrix, a subnuclear compartment involved in DNA replication as well as RNA synthesis and processing, suggest a role for ZNF74 in RNA metabolism.
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Affiliation(s)
- B Grondin
- Institut de Recherches Cliniques de Montréal, Université de Montréal, Montréal, Québec H2W 1R7, Canada
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Demczuk S, Lévy A, Aubry M, Croquette MF, Philip N, Prieur M, Sauer U, Bouvagnet P, Rouleau GA, Thomas G. Excess of deletions of maternal origin in the DiGeorge/velo-cardio-facial syndromes. A study of 22 new patients and review of the literature. Hum Genet 1995; 96:9-13. [PMID: 7607662 DOI: 10.1007/bf00214179] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.4] [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: 01/26/2023]
Abstract
We have determined the parental origin of the deleted chromosome 22 in 29 cases of DiGeorge syndrome (DGS) using a CA-repeat mapping within the commonly deleted region, and in one other case by using a chromosome 22 short arm heteromorphism. The CA-repeat was informative in 21 out of 29 families studied and the deleted chromosome was of maternal origin in 16 cases (72%). When these data are pooled with recent results from the literature, 24 de novo DGS, velo-cardio-facial syndrome (VCFS) and isolated conotruncal cardiac disease deletions are found to be of maternal origin and 8 of paternal origin, yielding a chi 2 of 8 with a probability level lower than 0.01. These data, and review of the literature on familial DGS/VCFS and isolated conotruncal cardiopathies suggest that there is a strong tendency for the 22q11.2 deletions to be of maternal origin.
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Affiliation(s)
- S Demczuk
- Laboratoire de Génétique des Tumeurs, Institut Curie, Paris, France
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