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Overman J, Fontaine F, Moustaqil M, Mittal D, Sierecki E, Sacilotto N, Zuegg J, Robertson AAB, Holmes K, Salim AA, Mamidyala S, Butler MS, Robinson AS, Lesieur E, Johnston W, Alexandrov K, Black BL, Hogan BM, De Val S, Capon RJ, Carroll JS, Bailey TL, Koopman P, Jauch R, Cooper MA, Gambin Y, Francois M. Correction: Pharmacological targeting of the transcription factor SOX18 delays breast cancer in mice. eLife 2023; 12:e90408. [PMID: 37551662 PMCID: PMC10409503 DOI: 10.7554/elife.90408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023] Open
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Lesieur E, Zaffran S, Chaoui R, Quarello E. Prenatal screening and diagnosis of pulmonary artery anomalies. Ultrasound Obstet Gynecol 2023; 61:445-457. [PMID: 36178851 DOI: 10.1002/uog.26078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 09/08/2022] [Accepted: 09/11/2022] [Indexed: 06/16/2023]
Abstract
Congenital pulmonary artery anomalies are rare. Their antenatal diagnosis requires good knowledge of fetal cardiac anatomy because their clinical presentation varies depending on the type and severity of the underlying lesion. Screening of these vascular anomalies can be straightforward in some cases because of significant associated consequences that are detected easily on ultrasound, while other anomalies have considerably less obvious features. There may be an associated genetic syndrome. The aim of this review was to define anomalies of the main pulmonary artery and its branches and to propose, through the identification of suspicious findings during routine antenatal heart examination, an optimal screening method for the pulmonary artery pathway. We propose that pulmonary artery anomalies can be classified antenatally into four types of disorder. Herein we describe 14 cases subgrouped accordingly as: anomalies of the pulmonary valvular region, with stenosis or atresia of the valve (n = 4); conotruncal abnormalities (n = 4); anomalies associated with abnormal origin or course of the pulmonary artery (n = 4); and anomalies associated with abnormal growth of the pulmonary artery and its branches (n = 2). We highlight the need to differentiate the three-vessel view from the three-vessel-and-trachea view when assessing a fetus with a congenital pulmonary artery anomaly. © 2022 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- E Lesieur
- Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, Timone Hospital, Aix-Marseille University, Marseille, France
- UMR 7268 ADES, Aix-Marseille University, CNRS, EFS, Marseille, France
| | - S Zaffran
- Aix-Marseille University, INSERM, MMG, U1251, Marseille, France
| | - R Chaoui
- Center for Prenatal Diagnosis and Human Genetics, Berlin, Germany
| | - E Quarello
- Screening and Diagnosis Unit, Department of Obstetrics and Gynecology, Saint Joseph Hospital, Marseille, France
- IMAGE2 Center, Marseille, France
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Lesieur E, Delteil C, Gorincour G, Panuel M, Chaumoitre K, Saliba B, Bretelle F, Piercecchi-Marti MD, Adalian P. Fetal facial bone growth: Post-mortem CT analysis. Morphologie 2023; 107:116-126. [PMID: 35739008 DOI: 10.1016/j.morpho.2022.05.006] [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: 03/21/2022] [Revised: 05/24/2022] [Accepted: 05/24/2022] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To describe and model the normal growth of fetal facial bones and angles. MATERIAL AND METHODS A total of 118 fetal CT scans obtained at 19 to 41 weeks gestation after in utero fetal death or late miscarriage were analyzed. CT scan was followed by autopsy and pathological examination and only fetuses free from brain disease or abnormal craniofacial development were included. The measurements were taken using software for frontal, sagittal and 3D reconstruction from native axial sections. The optimal plane for bone analysis was chosen and the measurements made by multiplanar reconstruction. RESULTS There was a statistically significant increase (P<0.001) in all measurements regardless of gestational age (GA) except those of the mandibulo-fronto-maxillary angle (P=0.412), the naso-mandibulo-maxillary angle (P=0.828) and mandibular width (P=0.86). There was no significant difference according to fetal sex. Based on these results, the corresponding growth curves were created. The anteroposterior mandibular diameter (APD) was very strongly correlated with GA (R=0.926, P<0.001). The following equation: GA=(8.187×APD)+4.257 can be used to estimate GA with a confidence interval (CI) of±2.42. The same applies to maxillary width (MW) (R=0.922; P<0.001). The equation GA=(11.059×MW)+7.571 can be used to estimate GA with a CI of 2.17. CONCLUSION The growth of the mandible, maxilla, zygomatic bone and orbits was measured and the corresponding growth curves were established. Several measurements were strongly correlated with gestational age.
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Affiliation(s)
- E Lesieur
- Screening and Diagnosis Unit, department of Obstetrics and Gynecology, Timone Hospital, Marseille, France; UMR 7268 ADES Anthropologie droit éthique et santé, Aix Marseille université, CNRS, EFS, Marseille, France.
| | - C Delteil
- UMR 7268 ADES Anthropologie droit éthique et santé, Aix Marseille université, CNRS, EFS, Marseille, France; Forensic Department, Assistance Publique-hôpitaux de Marseille, La Timone, Marseille, France
| | - G Gorincour
- IMAGE 2 (Institut méditerranéen d'imagerie médicale appliquée à la gynécologie, la grossesse et l'enfance), 6, rue Rocca, 13008 Marseille, France
| | - M Panuel
- UMR 7268 ADES Anthropologie droit éthique et santé, Aix Marseille université, CNRS, EFS, Marseille, France; Department of Radiology, CHU Nord, Assistance Publique-hôpitaux de Marseille, Marseille, France
| | - K Chaumoitre
- UMR 7268 ADES Anthropologie droit éthique et santé, Aix Marseille université, CNRS, EFS, Marseille, France; Department of Radiology, CHU Nord, Assistance Publique-hôpitaux de Marseille, Marseille, France
| | - B Saliba
- UMR 7268 ADES Anthropologie droit éthique et santé, Aix Marseille université, CNRS, EFS, Marseille, France
| | - F Bretelle
- Screening and Diagnosis Unit, department of Obstetrics and Gynecology, Timone Hospital, Marseille, France; IHU Méditerranée Infection MEPHI, Aix-Marseille université, IRD, Assistance Publique-hôpitaux de Marseille, Marseille, France
| | - M D Piercecchi-Marti
- UMR 7268 ADES Anthropologie droit éthique et santé, Aix Marseille université, CNRS, EFS, Marseille, France; Forensic Department, Assistance Publique-hôpitaux de Marseille, La Timone, Marseille, France
| | - P Adalian
- UMR 7268 ADES Anthropologie droit éthique et santé, Aix Marseille université, CNRS, EFS, Marseille, France
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Chiang IKN, Graus MS, Kirschnick N, Davidson T, Luu W, Harwood R, Jiang K, Li B, Wong YY, Moustaqil M, Lesieur E, Skoczylas R, Kouskoff V, Kazenwadel J, Arriola‐Martinez L, Sierecki E, Gambin Y, Alitalo K, Kiefer F, Harvey NL, Francois M. The blood vasculature instructs lymphatic patterning in a SOX7-dependent manner. EMBO J 2023; 42:e109032. [PMID: 36715213 PMCID: PMC9975944 DOI: 10.15252/embj.2021109032] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 12/15/2022] [Accepted: 12/22/2022] [Indexed: 01/31/2023] Open
Abstract
Despite a growing catalog of secreted factors critical for lymphatic network assembly, little is known about the mechanisms that modulate the expression level of these molecular cues in blood vascular endothelial cells (BECs). Here, we show that a BEC-specific transcription factor, SOX7, plays a crucial role in a non-cell-autonomous manner by modulating the transcription of angiocrine signals to pattern lymphatic vessels. While SOX7 is not expressed in lymphatic endothelial cells (LECs), the conditional loss of SOX7 function in mouse embryos causes a dysmorphic dermal lymphatic phenotype. We identify novel distant regulatory regions in mice and humans that contribute to directly repressing the transcription of a major lymphangiogenic growth factor (Vegfc) in a SOX7-dependent manner. Further, we show that SOX7 directly binds HEY1, a canonical repressor of the Notch pathway, suggesting that transcriptional repression may also be modulated by the recruitment of this protein partner at Vegfc genomic regulatory regions. Our work unveils a role for SOX7 in modulating downstream signaling events crucial for lymphatic patterning, at least in part via the transcriptional repression of VEGFC levels in the blood vascular endothelium.
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Affiliation(s)
- Ivy K N Chiang
- The Centenary Institute, David Richmond Program for Cardio‐Vascular Research: Gene Regulation and Editing, Sydney Medical SchoolUniversity of SydneySydneyNSWAustralia
| | - Matthew S Graus
- The Centenary Institute, David Richmond Program for Cardio‐Vascular Research: Gene Regulation and Editing, Sydney Medical SchoolUniversity of SydneySydneyNSWAustralia
| | - Nils Kirschnick
- European Institute for Molecular Imaging (EIMI)University of MünsterMünsterGermany
| | - Tara Davidson
- The Centenary Institute, David Richmond Program for Cardio‐Vascular Research: Gene Regulation and Editing, Sydney Medical SchoolUniversity of SydneySydneyNSWAustralia
| | - Winnie Luu
- The Centenary Institute, David Richmond Program for Cardio‐Vascular Research: Gene Regulation and Editing, Sydney Medical SchoolUniversity of SydneySydneyNSWAustralia
| | - Richard Harwood
- Sydney Microscopy and MicroanalysisUniversity of SydneySydneyNSWAustralia
| | - Keyi Jiang
- The Centenary Institute, David Richmond Program for Cardio‐Vascular Research: Gene Regulation and Editing, Sydney Medical SchoolUniversity of SydneySydneyNSWAustralia
| | - Bitong Li
- The Centenary Institute, David Richmond Program for Cardio‐Vascular Research: Gene Regulation and Editing, Sydney Medical SchoolUniversity of SydneySydneyNSWAustralia
| | - Yew Yan Wong
- The Genome Imaging CenterThe Centenary InstituteSydneyNSWAustralia
| | - Mehdi Moustaqil
- EMBL Australia Node in Single Molecule Science, and School of Medical SciencesUniversity of New South WalesSydneyNSWAustralia
| | - Emmanuelle Lesieur
- Institute for Molecular BioscienceThe University of QueenslandSt. LuciaQLDAustralia
| | - Renae Skoczylas
- Institute for Molecular BioscienceThe University of QueenslandSt. LuciaQLDAustralia
| | - Valerie Kouskoff
- Division of Developmental Biology & MedicineThe University of ManchesterManchesterUK
| | - Jan Kazenwadel
- Centre for Cancer BiologyUniversity of South Australia and SA PathologyAdelaideSAAustralia
| | - Luis Arriola‐Martinez
- Centre for Cancer BiologyUniversity of South Australia and SA PathologyAdelaideSAAustralia
| | - Emma Sierecki
- EMBL Australia Node in Single Molecule Science, and School of Medical SciencesUniversity of New South WalesSydneyNSWAustralia
| | - Yann Gambin
- EMBL Australia Node in Single Molecule Science, and School of Medical SciencesUniversity of New South WalesSydneyNSWAustralia
| | - Kari Alitalo
- Wihuri Research Institute and Translational Cancer Medicine Program, Faculty of MedicineUniversity of HelsinkiHelsinkiFinland
| | - Friedmann Kiefer
- European Institute for Molecular Imaging (EIMI)University of MünsterMünsterGermany
| | - Natasha L Harvey
- Centre for Cancer BiologyUniversity of South Australia and SA PathologyAdelaideSAAustralia
| | - Mathias Francois
- The Centenary Institute, David Richmond Program for Cardio‐Vascular Research: Gene Regulation and Editing, Sydney Medical SchoolUniversity of SydneySydneyNSWAustralia
- The Genome Imaging CenterThe Centenary InstituteSydneyNSWAustralia
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Eydoux R, Lesieur E, Blanc J, Girard N, D'ercole C, Sigaudy S, Chaumoitre K, Bretelle F. Relevance of fetal brain MRI compared to ultrasound for detecting cerebral anomalies in fetuses with cleft lip and/or palate: a cohort study. Fetal Diagn Ther 2023; 50:37-46. [PMID: 36623502 DOI: 10.1159/000528906] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 12/27/2022] [Indexed: 01/11/2023]
Abstract
INTRODUCTION Relevance of fetal brain MRI in cases of cleft lip and/or palate (CL/P) is still discussed to date. The aim of our study was to review the contribution of fetal brain MRI for detecting cerebral anomalies in cases of CL/P comparing antenatal data with neonatal outcomes. METHODS A retrospective multicenter study was conducted from January 2010 to October 2020 in two multidisciplinary prenatal diagnosis centers (MDPDCs) among women with a fetal US diagnosis of CL/P. Prenatal imaging and genetic analysis data were collected, as well as postnatal data, including outcomes of children who had an abnormal prenatal MRI. RESULTS Among the 202 fetuses with an US diagnosis of CL/P, 96 underwent US and fetal brain MRI. 19 brain MRIs were found to be abnormal: 14 (73.7%) involved CL/P associated with other US abnormalities, and five (26.3%) involved isolated clefts of which four were cleft lip and alveolus and secondary palate (CLP). MRI identified severe abnormalities that changed the prognoses of three cases of clefts associated with other US abnormalities. In contrast, MRI found only minor abnormalities for the five isolated clefts, with no postnatal disorders found in these children. CONCLUSION Fetal brain MRI should be proposed in cases of clefts associated with other anomalies or if US examination is limited by local conditions. MRI could also be discussed in cases of isolated CLP but should not be performed in cases of isolated cleft lip (CL).
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Affiliation(s)
- Raphaëlle Eydoux
- Department of Obstetrics and Gynecology, Conception Hospital, Assistance Publique des Hôpitaux de Marseille (AP-HM), Aix Marseille Université, Marseille, France
- Children's Hospital La Timone, Multidisciplinary Center for Prenatal Diagnosis, Marseille, France
| | - Emmanuelle Lesieur
- Department of Obstetrics and Gynecology, Conception Hospital, Assistance Publique des Hôpitaux de Marseille (AP-HM), Aix Marseille Université, Marseille, France
- Children's Hospital La Timone, Multidisciplinary Center for Prenatal Diagnosis, Marseille, France
- ADES, UMR 7268, Faculté de Médecine de Marseille, Aix-Marseille Université-EFS-CNRS, Marseille, France
| | - Julie Blanc
- Department of Obstetrics and Gynecology, Nord Hospital, APHM, Marseille, France
- EA3279, CEReSS, Health Service Research and Quality of Life Center, Aix-Marseille University, Marseille, France
| | - Nadine Girard
- Department of Diagnostic and Interventional Neuroradiology, AMU, CRMBM UMR CNRS 7339, Faculté de Médecine et APHM, Hopital Timone, Marseille, France
| | - Claude D'ercole
- Department of Obstetrics and Gynecology, Nord Hospital, APHM, Marseille, France
| | - Sabine Sigaudy
- Department of Medical Genetics, Children's Hospital La Timone, Assistance Publique des Hopitaux de Marseille, Marseille, France
| | - Kathia Chaumoitre
- ADES, UMR 7268, Faculté de Médecine de Marseille, Aix-Marseille Université-EFS-CNRS, Marseille, France
- Department of Medical Imaging, APHM, Hôpital Nord, Marseille, France
| | - Florence Bretelle
- Department of Obstetrics and Gynecology, Conception Hospital, Assistance Publique des Hôpitaux de Marseille (AP-HM), Aix Marseille Université, Marseille, France
- Children's Hospital La Timone, Multidisciplinary Center for Prenatal Diagnosis, Marseille, France
- IHU, IRD, Marseille, France
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Lesieur E, Riccardi F, Bault JP, Levaillant JM, Torrents J, Paternostre A, Couly G, Quarello E. [Antenatal ear examination: When, how and why?]. Gynecol Obstet Fertil Senol 2022; 50:624-637. [PMID: 35817342 DOI: 10.1016/j.gofs.2022.05.005] [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] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 04/30/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
Antenatal ear examination is an integral part of the thorough examination of the fetal face. The discovery of an anomaly, whether it is made by chance or during a complementary in-depth examination, leads the practitioner to determine its isolated or associated character, in order to characterise its possible belonging to a syndromic entity. In this context, the realization of genetic analysis more precise and wider allowing a return of the results in a time compatible with an evolutive pregnancy, gives to the geneticist a central role in the management of these couples. The main challenge lies in obtaining a set of concordant clinical and biological clues, enabling the genetic results identified to be interpreted correctly, the optimised functioning of the ultrasound practitioner - geneticist duo is therefore fundamental. This results in a complex information to deliver, in the fact that the clinical translation of an ear anomaly in antenatal can go from an isolated aesthetic anomaly to a genetic syndrome with neurodevelopmental disorder. The objective of this work is to describe, from a methodological analysis of antenatal ears, the accessible malformative entities, isolated or associated, and to discuss the problems in the need or not to propose their screening.
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Affiliation(s)
- E Lesieur
- Department of obstetrics and gynaecology, Prenatal Diagnosis Center, La Conception hospital, Aix Marseille university, boulevard Baille, 13005 Marseille, France; UMR 7268 ADES, Aix-Marseille université, CNRS, EFS, Marseille, France.
| | - F Riccardi
- MMG, Inserm, Aix-Marseille université, Marseille, France
| | - J-P Bault
- Department of gynaecology and obstetrics, CHI Poissy-St-Germain, 78300 Poissy, France; Centre d'échographie Ambroise-Paré, 68/70, rue Aristide-Briand, 78130 Les Mureaux, France; Plateforme Lumière, hôpital Necker-Enfant Malade, Paris, France
| | - J-M Levaillant
- Center for Woman and Fetal Imaging, 59000, France; Hôpital Privé Armand Brillard, Groupe Ramsay Générale De Santé, 94130 Nogent-sur-Marne, France
| | - J Torrents
- Department of Pathology and Neuropathology, La Timone Hospital, Aix Marseille University, Marseille, France
| | - A Paternostre
- Department of gynaecology and obstetrics, CHI Poissy-St-Germain, 78300 Poissy, France; European Center of Diagnosis and Exploration of the Woman, 78150 Le Chesnay, France
| | - G Couly
- Center for Woman and Fetal Imaging, 59800 Lille, France
| | - E Quarello
- Department of obstetrics and gynecology, screening and diagnosis unit, Saint Joseph hospital, 26, boulevard de Louvain, 13008 Marseille, France; IMAGE2 Center, 6, rue Rocca, 13008 Marseille, France
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Lesieur E, Torrents J, Fina F, Zandotti C, Blanc J, Collardeau-Frachon S, Gazin C, Sirgant D, Mezouar S, Otmani Idrissi M, Lepidi H, Bretelle F, Mege JL, Daniel L, Fritih R. Congenital Infection of Severe Acute Respiratory Syndrome Coronavirus 2 With Intrauterine Fetal Death: A Clinicopathological Study With Molecular Analysis. Clin Infect Dis 2021; 75:e1092-e1100. [PMID: 34553751 PMCID: PMC8500004 DOI: 10.1093/cid/ciab840] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 07/16/2021] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Observations of vertical transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection from mother to fetus have recently been described in the literature. However, the consequences of such transmission, whether fetal or neonatal, are poorly understood. METHODS From a case of in utero fetal death at 24+2 weeks of gestation that occurred 7 days after the diagnosis of symptomatic SARS-CoV-2 infection in the mother, we isolated the incriminating virus by immunochemistry and molecular techniques in several fetal tissues, with a variant analysis of the SARS-CoV-2 genome. RESULTS The fetal demise could be explained by the presence of placental histological lesions, such as histiocytic intervillositis and trophoblastic necrosis, in addition to fetal tissue damage. We observed mild fetal growth retardation and visceral damage to the liver, causing hepatocellular damage and hemosiderosis. To the best of our knowledge, this is the first report in the literature of fetal demise secondary to maternal-fetal transmission of SARSCoV- 2 with a congenital infection and a pathological description of placental and fetal tissue damage. CONCLUSIONS SARS-CoV-2 was identified in both specimens using 3 independent techniques (immunochemistry, real-time quantitative polymerase chain reaction, and realtime digital polymerase chain reaction). Furthermore, the incriminating variant has been identified.
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Affiliation(s)
- Emmanuelle Lesieur
- Department of Pathology and Neuropathology, La Timone Hospital, Aix Marseille, University, Marseille, France,Prenatal Diagnosis Center, Department of Obstetrics and Gynaecology, La Conception Hospital, Aix Marseille University, Boulevard Baille, 13005 Marseille, France,Correspondence: Dr. Emmanuelle Lesieur, Prenatal Diagnosis Center, Department of Obstetrics and Gynaecology, La Conception Hospital, Aix Marseille University, Boulevard Baille, 13005 Marseille. Phone: + 33 491 384 257, mail:
| | - Julia Torrents
- Department of Pathology and Neuropathology, La Timone Hospital, Aix Marseille, University, Marseille, France
| | - Frédéric Fina
- Department of Pathology and Neuropathology, La Timone Hospital, Aix Marseille, University, Marseille, France,ID Solutions, Grabels, France
| | - Christine Zandotti
- IHU Méditerranée infection MEPHI - Aix-Marseille Université – 13005 Marseille, France - IRD – APHM
| | - Julie Blanc
- Department of Obstetrics and Gynaecology, Nord Hospital, APHM, Chemin des Bourrely, 13015, Marseille, France,EA3279, CEReSS, Health Service Research and Quality of Life Center, Aix-Marseille University, 13284, Marseille, France
| | - Sophie Collardeau-Frachon
- Institut de Pathologie Multisite, Groupement Hospitalier Est, Hospices Civils de Lyon, France; Université Claude Bernard Lyon 1, France
| | - Céline Gazin
- IHU Méditerranée infection MEPHI - Aix-Marseille Université – 13005 Marseille, France - IRD – APHM
| | - Delphine Sirgant
- Department of Obstetrics and Gynaecology, Ste Musse Hospital, 54, rue Henri Sainte Claire Deville, 83000, Toulon, France
| | - Soraya Mezouar
- IHU Méditerranée infection MEPHI - Aix-Marseille Université – 13005 Marseille, France - IRD – APHM
| | - Myriem Otmani Idrissi
- IHU Méditerranée infection MEPHI - Aix-Marseille Université – 13005 Marseille, France - IRD – APHM
| | - Hubert Lepidi
- Department of Pathology and Neuropathology, La Timone Hospital, Aix Marseille, University, Marseille, France
| | - Florence Bretelle
- Prenatal Diagnosis Center, Department of Obstetrics and Gynaecology, La Conception Hospital, Aix Marseille University, Boulevard Baille, 13005 Marseille, France,Aix-Marseille Université, Unité de Recherche sur les Maladies Infectieuses Tropicales et Emergentes, UM63, CNRS 7278, IRD 198, INSERM 1095, Marseille, France
| | - Jean-Louis Mege
- IHU Méditerranée infection MEPHI - Aix-Marseille Université – 13005 Marseille, France - IRD – APHM
| | - Laurent Daniel
- Department of Pathology and Neuropathology, La Timone Hospital, Aix Marseille, University, Marseille, France,Aix Marseille University - INSERM 1263 - INRAE 1260, France
| | - Radia Fritih
- Department of Pathology and Neuropathology, La Timone Hospital, Aix Marseille, University, Marseille, France
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Lesieur E, Barrois M, Bourdon M, Blanc J, Loeuillet L, Delteil C, Torrents J, Bretelle F, Grangé G, Tsatsaris V, Anselem O. Megacystis in the first trimester of pregnancy: Prognostic factors and perinatal outcomes. PLoS One 2021; 16:e0255890. [PMID: 34492029 PMCID: PMC8423287 DOI: 10.1371/journal.pone.0255890] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 07/26/2021] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To determine whether bladder size is associated with an unfavorable neonatal outcome, in the case of first-trimester megacystis. MATERIALS AND METHODS This was a retrospective observational study between 2009 and 2019 in two prenatal diagnosis centers. The inclusion criterion was an enlarged bladder (> 7 mm) diagnosed at the first ultrasound exam between 11 and 13+6 weeks of gestation. The main study endpoint was neonatal outcome based on bladder size. An adverse outcome was defined by the completion of a medical termination of pregnancy, the occurrence of in utero fetal death, or a neonatal death. Neonatal survival was considered as a favorable outcome and was defined by a live birth, with or without normal renal function, and with a normal karyotype. RESULTS Among 75 cases of first-trimester megacystis referred to prenatal diagnosis centers and included, there were 63 (84%) adverse outcomes and 12 (16%) live births. Fetuses with a bladder diameter of less than 12.5 mm may have a favorable outcome, with or without urological problems, with a high sensitivity (83.3%) and specificity (87.3%), area under the ROC curve = 0.93, 95% CI (0.86-0.99), p< 0.001. Fetal autopsy was performed in 52 (82.5%) cases of adverse outcome. In the 12 cases of favorable outcome, pediatric follow-up was normal and non-pathological in 8 (66.7%). CONCLUSION Bladder diameter appears to be a predictive marker for neonatal outcome. Fetuses with smaller megacystis (7-10 mm) have a significantly higher chance of progressing to a favorable outcome. Urethral stenosis and atresia are the main diagnoses made when first-trimester megacystis is observed. Karyotyping is important regardless of bladder diameter.
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Affiliation(s)
| | - Mathilde Barrois
- Maternité Port-Royal, AP-HP, Hôpital Cochin, FHU PREMA, Paris, France
| | - Mathilde Bourdon
- Faculté de Médecine Paris Centre, Faculté de Santé, Université de Paris, Paris, France
- Service de Gynécologie-Obstétrique II et de Médecine de la Reproduction, AP-HP, Centre Hospitalier Universitaire (CHU) Cochin, Paris, France
- Department “Infection, Immunity and Inflammation”, Université de Paris, Institut Cochin, Paris, France
| | - Julie Blanc
- Service de Gynécologie Obstétrique, Hôpital Nord, AP-HM, Chemin des Bourrely, Marseille, France
- EA3279, CEReSS, Health Service Research and Quality of Life Center, Université Aix-Marseille, Marseille, France
| | - Laurence Loeuillet
- Service d’Histologie-Embryologie-Cytogénétique, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Clémence Delteil
- Institut Médicolégal de Marseille, Hôpital Timone Adultes, Marseille, France
- CNRS, EFS, ADES UMR 7268, Aix-Marseille université, Marseille, France
| | - Julia Torrents
- Service d’Anatomo-Cytopathologie et Fœtopathologie, Hôpital de la Timone, Marseille, France
| | - Florence Bretelle
- Service de Gynécologie Obstétrique, Hôpital Nord, AP-HM, Chemin des Bourrely, Marseille, France
- Aix Marseille Univ, IRD, AP-HM, MEФI, Marseille, France
| | - Gilles Grangé
- Maternité Port-Royal, AP-HP, Hôpital Cochin, FHU PREMA, Paris, France
| | - Vassilis Tsatsaris
- Maternité Port-Royal, AP-HP, Hôpital Cochin, FHU PREMA, Paris, France
- Université de Paris, Inserm UMR-S 1139, Physiopathologie et Pharmacotoxicologie Placentaire Humaine, Paris, France
| | - Olivia Anselem
- Maternité Port-Royal, AP-HP, Hôpital Cochin, FHU PREMA, Paris, France
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9
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Lesieur E, Noire A, Maurice P, Garel C, Jouannic JM, Chaumoitre K, Bretelle F, Haumonte JB, Gorincour G, Quarello E. Prenatal Assessment of Atypical Adrenal Glands: A Systematic Approach for Diagnosis. J Ultrasound Med 2021; 40:1719-1728. [PMID: 33058228 DOI: 10.1002/jum.15536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/05/2020] [Accepted: 09/15/2020] [Indexed: 06/11/2023]
Abstract
The aim of this study was to identify specific unusual prenatal ultrasound (US) patterns of the adrenal gland and to propose a systematic approach for diagnosis. Six fetuses with unusual aspects of one or both adrenal glands, detected during routine prenatal US screening, were evaluated. Prenatal and postnatal management are described. A checklist of US features was created to perform a detailed analysis of adrenal lesions and guide prenatal management; this includes the time of appearance, location, growth, vascularization, structure, and presence of findings suggestive of malignancy.
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Affiliation(s)
- Emmanuelle Lesieur
- Screening and Diagnosis Unit, Department of Obstetrics and Gynecology, St Joseph Hospital, Marseille, France
| | - Aurélie Noire
- Cabinet de Gynécologie et Obstétrique, Hyères, France
| | - Paul Maurice
- Service de Médecine Foetale, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Sorbonne Université, Paris, France
| | - Catherine Garel
- Department of Pediatric Imaging, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Sorbonne Université, Paris, France
| | - Jean-Marie Jouannic
- Service de Médecine Foetale, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Sorbonne Université, Paris, France
| | - Katia Chaumoitre
- Service d'Imagerie Médicale, Assistance Publique-Hôpitaux de Marseille, Hôpital Nord, Marseille, France
| | - Florence Bretelle
- Department of Gynecology and Obstetrics, Gynepole, Assistance Publique-Hôpitaux de Marseille, Hôpital Nord, Marseille, France
| | - Jean Baptiste Haumonte
- Screening and Diagnosis Unit, Department of Obstetrics and Gynecology, St Joseph Hospital, Marseille, France
| | | | - Edwin Quarello
- IMAGE2 Center, Marseille, France
- Elsan, Clinique Bouchard, Marseille, France
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10
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Lesieur E, Degardin N, Develay-Morice JE, Quarello E. [Ultrasound scan of a fetus with facial cleft must be done from the lip to the uvula: What's new?]. ACTA ACUST UNITED AC 2021; 49:767-781. [PMID: 33766791 DOI: 10.1016/j.gofs.2021.03.007] [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: 01/21/2021] [Indexed: 10/21/2022]
Abstract
Facial cleft are the most frequent craniofacial anomalies with an incidence of one for 1000 births, all births combined, and require specialized multidisciplinary care. Since 2005, the systematic realization of two ultrasound views (nose-lip and profile) is recommended for the exploration of the fetal face in the 2nd trimester of pregnancy. Application of these recommendations should allow screening of the majority of cleft lip and palate. However, cleft palates, without labiomaxillary involvement, are currently largely underdiagnosed at prenatal ultrasound, although they can be associated with a syndromic diagnosis in up to 30% of cases. The aim of this work is to describe, from embryology to surgical consultation, the complete ultrasound examination of a fetus with a classic facial cleft.
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Affiliation(s)
- E Lesieur
- Screening and Diagnosis Unit, Department of Obstetrics and Gynecology, Saint-Joseph Hospital, 26, boulevard de Louvain, 13008 Marseille, France.
| | - N Degardin
- Department of Pediatric Plastic Surgery, Public Assistance Hospital of Marseille, University Hospital Center Timone, 278, rue Saint-Pierre, 13005 Marseille, France
| | - J-E Develay-Morice
- Department of Gynecology and Obstetrics, Gynepole, Assistance Publique-Hôpitaux de Marseille, chemin des Bourrely, 13015 Marseille, France
| | - E Quarello
- Screening and Diagnosis Unit, Department of Obstetrics and Gynecology, Saint-Joseph Hospital, 26, boulevard de Louvain, 13008 Marseille, France; IMAGE2 Center, 6, rue Rocca, 13008 Marseille, France
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11
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Delteil C, Lesieur E, Tuchtan L, Carballeira Alvarez A, Chaumoitre K, Saliba B, Adalian P, Piercecchi-Marti MD. Study of the growth and shape of the brain and cranial base during the first two years of life. Morphologie 2020; 105:45-53. [PMID: 33069567 DOI: 10.1016/j.morpho.2020.09.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 09/30/2020] [Accepted: 09/30/2020] [Indexed: 11/17/2022]
Abstract
Ontogeny of the cranial base and the brain integrates data on growth, maturation and ontogenetic allometry of these two systems in the course of development. The aim of our work was to study the ontogeny of the cranial base and the brain in order to understand their growth dynamic and shape changes using a traditional morphometric approach in individuals with normal (non-pathological) development. MATERIEL AND METHOD Forty-seven infants having been included in the unexpected infant death french protocol were analyzed. Medical imaging (CT and MRI) exams, followed by an autopsy and pathology examination allowed us to include only infants free from brain disease or pathology affecting growth. RESULTS Testing of measurement reliability validated 12 distances and 3 angles as well as the positioning of the landmarks that had been used to obtain the distances and the angles. No correlation between sex and the various variables studied was found. However, a correlation was observed between these variables and age, making it possible to propose a growth curve. A medium to strong correlation was found between brain variables and the bone variables of the cranial base, underlining the parallel development of the two systems. CONCLUSION Our study, carried out in a rigorously selected population of infants, presents a fundamental approach to the study of ontogenesis.
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Affiliation(s)
- C Delteil
- Forensic Department, APHM, La Timone, 264, rue St Pierre, 13385 Marseille Cedex 05, France; Aix Marseille Univ, CNRS, EFS, ADES, Marseille, France.
| | - E Lesieur
- Department of Gynaecology and Obstetrics, Gynépole, Assistance Publique-Hôpitaux de Marseille, AMU, Aix-Marseille Université, Marseille, France
| | - L Tuchtan
- Forensic Department, APHM, La Timone, 264, rue St Pierre, 13385 Marseille Cedex 05, France
| | - A Carballeira Alvarez
- Department of Radiology, Conception Hospital, Assistance Publique-Hôpitaux de Marseille, 147, boulevard Baille, 13005 Marseille Cedex 05, France
| | - K Chaumoitre
- Department of Radiology, CHU Nord, Assistance Publique-Hôpitaux de Marseille, Chemin des Bourrely, 13015 Marseille, France
| | - B Saliba
- Aix Marseille Univ, CNRS, EFS, ADES, Marseille, France
| | - P Adalian
- Aix Marseille Univ, CNRS, EFS, ADES, Marseille, France
| | - M-D Piercecchi-Marti
- Forensic Department, APHM, La Timone, 264, rue St Pierre, 13385 Marseille Cedex 05, France
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12
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Overman J, Fontaine F, Wylie-Sears J, Moustaqil M, Huang L, Meurer M, Chiang IK, Lesieur E, Patel J, Zuegg J, Pasquier E, Sierecki E, Gambin Y, Hamdan M, Khosrotehrani K, Andelfinger G, Bischoff J, Francois M. R-propranolol is a small molecule inhibitor of the SOX18 transcription factor in a rare vascular syndrome and hemangioma. eLife 2019; 8:43026. [PMID: 31358114 PMCID: PMC6667216 DOI: 10.7554/elife.43026] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [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: 10/21/2018] [Accepted: 05/15/2019] [Indexed: 12/15/2022] Open
Abstract
Propranolol is an approved non-selective β-adrenergic blocker that is first line therapy for infantile hemangioma. Despite the clinical benefit of propranolol therapy in hemangioma, the mechanistic understanding of what drives this outcome is limited. Here, we report successful treatment of pericardial edema with propranolol in a patient with Hypotrichosis-Lymphedema-Telangiectasia and Renal (HLTRS) syndrome, caused by a mutation in SOX18. Using a mouse pre-clinical model of HLTRS, we show that propranolol treatment rescues its corneal neo-vascularisation phenotype. Dissection of the molecular mechanism identified the R(+)-propranolol enantiomer as a small molecule inhibitor of the SOX18 transcription factor, independent of any anti-adrenergic effect. Lastly, in a patient-derived in vitro model of infantile hemangioma and pre-clinical model of HLTRS we demonstrate the therapeutic potential of the R(+) enantiomer. Our work emphasizes the importance of SOX18 etiological role in vascular neoplasms, and suggests R(+)-propranolol repurposing to numerous indications ranging from vascular diseases to metastatic cancer.
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Affiliation(s)
- Jeroen Overman
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Frank Fontaine
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Jill Wylie-Sears
- Vascular Biology Program, Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, United States
| | - Mehdi Moustaqil
- Single Molecule Science, Lowy Cancer Research Centre, The University of New South Wales, Sydney, Australia
| | - Lan Huang
- Vascular Biology Program, Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, United States
| | - Marie Meurer
- Centre de Recherche en Cancérologie de Marseille (CRCM Marseille Cancer Research Centre), Inserm UMR1068, CNRS UMR7258, Aix-Marseille University UM105, Marseille, France
| | - Ivy Kim Chiang
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Emmanuelle Lesieur
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Jatin Patel
- Translational Research Institute, Diamantina Institute, The University of Queensland, Brisbane, Australia
| | - Johannes Zuegg
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Eddy Pasquier
- Centre de Recherche en Cancérologie de Marseille (CRCM Marseille Cancer Research Centre), Inserm UMR1068, CNRS UMR7258, Aix-Marseille University UM105, Marseille, France
| | - Emma Sierecki
- Single Molecule Science, Lowy Cancer Research Centre, The University of New South Wales, Sydney, Australia
| | - Yann Gambin
- Single Molecule Science, Lowy Cancer Research Centre, The University of New South Wales, Sydney, Australia
| | | | - Kiarash Khosrotehrani
- Translational Research Institute, Diamantina Institute, The University of Queensland, Brisbane, Australia
| | - Gregor Andelfinger
- Department of Pediatrics, University of Montreal, Ste-Justine University Hospital Centre, Montréal, Canada
| | - Joyce Bischoff
- Vascular Biology Program, Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, United States
| | - Mathias Francois
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
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13
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Lesieur E, Blanc J, Loundou A, Claquin A, Marcot M, Heckenroth H, Bretelle F. Teaching and performing audits on caesarean delivery reduce the caesarean delivery rate. PLoS One 2018; 13:e0202475. [PMID: 30148837 PMCID: PMC6110479 DOI: 10.1371/journal.pone.0202475] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 08/03/2018] [Indexed: 12/26/2022] Open
Abstract
Aim To assess the factors associated with lower rate of caesarean deliveries in the South of France, based on the characteristics and organisation of the region’s 40 maternity facilities and the characteristics of the practitioners in these facilities. Method A retrospective study from 1 January 2012 to 31 December 2015. Data were collected by the Mediterranean network and a declarative survey was completed by each maternity facility in the region to study factor which could be associated with lower caesarean rate by univariate and multivariate analysis. Results 250 564 women gave birth during this period, of which 55 097 by caesarean section. The mean caesarean delivery rate over the four years was 22.0%. The rate was significantly higher in private maternity facilities [23.9% (21.9%– 25.8%), p<0.05] and type III (maximum care level) maternity facilities [24.2% (21.3%– 27.1%), p<0.05]. After a stepwise regression, the factors associated with a decrease in the caesarean delivery rate were audits concerning caesarean delivery (19.83%, β = - 2.48, p = 0.03 over the four years) and the provision of training to trainee doctors at the maternity facility (20.28%, β = - 1.08, p = 0.04 over the four years). Conclusion Performing audits in relation to caesarean deliveries could affect the caesarean. Teaching trainee doctors could be an indicator of quality of caesarean practices. They should be encouraged in maternity facilities to reduce the rate of caesareans.
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Affiliation(s)
- Emmanuelle Lesieur
- Department of Gynaecology and Obstetrics, Gynépole, Assistance Publique-Hôpitaux de Marseille, AMU, Aix- Marseille Université, Marseille, France
- * E-mail:
| | - Julie Blanc
- Department of Gynaecology and Obstetrics, Gynépole, Assistance Publique-Hôpitaux de Marseille, AMU, Aix- Marseille Université, Marseille, France
- EA 3279 –Public Health, chronic diseases and quality of life–Research Unit, Aix-Marseille University, Marseille, France
| | - Anderson Loundou
- EA 3279 –Public Health, chronic diseases and quality of life–Research Unit, Aix-Marseille University, Marseille, France
| | - Arnaud Claquin
- Mediterannée Perinatal Networks « Reseau Mediterannée », PACA Corse Monaco, France
| | - Michele Marcot
- Mediterannée Perinatal Networks « Reseau Mediterannée », PACA Corse Monaco, France
| | - Helene Heckenroth
- Department of Gynaecology and Obstetrics, Gynépole, Assistance Publique-Hôpitaux de Marseille, AMU, Aix- Marseille Université, Marseille, France
| | - Florence Bretelle
- Department of Gynaecology and Obstetrics, Gynépole, Assistance Publique-Hôpitaux de Marseille, AMU, Aix- Marseille Université, Marseille, France
- Mediterannée Perinatal Networks « Reseau Mediterannée », PACA Corse Monaco, France
- UM63, CNRS 7278, IRD 198, INSERM 1095, Clinical infectious disease, Research Unit, Aix-Marseille University, Marseille, France
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14
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Toumi M, Lesieur E, Haumonte JB, Blanc J, D'ercole C, Bretelle F. Primary cesarean delivery rate: Potential impact of a checklist. J Gynecol Obstet Hum Reprod 2018; 47:419-424. [PMID: 30149208 DOI: 10.1016/j.jogoh.2018.08.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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: 04/26/2018] [Revised: 07/09/2018] [Accepted: 08/20/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND Cesarean section is the most common surgical procedure performed in developed countries. Its incidence is increasing to a worrisome extent. The 2003 French National Perinatal Survey showed that the inflation in the overall cesarean rate was mainly due to an increase in the first cesarean delivery rate. OBJECTIVE To evaluate a new tool: a checklist that intent to decrease the first cesarean delivery rate. STUDY DESIGN Retrospective, observational, multi-center study. A new tool, a "First cesarean delivery" checklist was built according American and French guidelines. Women with full-term of pregnancy, nulliparous or multiparous with a first caesarean delivery including arrest of labor, breech presentation or suspected fetal macrosomia were included. The checklist was applied. Potentially preventable cesareans were analyzed. RESULTS Among 571 first cesarean section, 178 were eligible to check list application. 147 charts were analyzed in the study. 11.9% of first cesarean deliveries performed were potentially avoidable after applying the checklist. This represented 6.6% of all cesareans. CONCLUSION The checklist based on the recall of good practices could be an interesting tool to decrease the first cesarean rate.
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Affiliation(s)
- M Toumi
- University Hospital centers Nord and Conception in Marseille, France; Department of Gynaecology and Obstetrics, Gynepole, AP-HM, Assistance Publique-Hôpitaux de Marseille, AMU, Aix-Marseille Université, France.
| | - E Lesieur
- University Hospital centers Nord and Conception in Marseille, France; Department of Gynaecology and Obstetrics, Gynepole, AP-HM, Assistance Publique-Hôpitaux de Marseille, AMU, Aix-Marseille Université, France.
| | - J-B Haumonte
- University Hospital centers Nord and Conception in Marseille, France; Hôpital St Joseph, Marseille, France.
| | - J Blanc
- University Hospital centers Nord and Conception in Marseille, France; Department of Gynaecology and Obstetrics, Gynepole, AP-HM, Assistance Publique-Hôpitaux de Marseille, AMU, Aix-Marseille Université, France.
| | - C D'ercole
- University Hospital centers Nord and Conception in Marseille, France; Department of Gynaecology and Obstetrics, Gynepole, AP-HM, Assistance Publique-Hôpitaux de Marseille, AMU, Aix-Marseille Université, France. Claude.D'
| | - F Bretelle
- University Hospital centers Nord and Conception in Marseille, France; Department of Gynaecology and Obstetrics, Gynepole, AP-HM, Assistance Publique-Hôpitaux de Marseille, AMU, Aix-Marseille Université, France; Réseau Méditerranée (PACA Corse Monaco), France; Unité de Recherche sur les Maladies Infectieuses Tropicales et Emergentes, UM63, CNRS 7278, IRD 198, INSERM 1095, Marseille, France.
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15
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Pichol-Thievend C, Betterman KL, Liu X, Ma W, Skoczylas R, Lesieur E, Bos FL, Schulte D, Schulte-Merker S, Hogan BM, Oliver G, Harvey NL, Francois M. A blood capillary plexus-derived population of progenitor cells contributes to genesis of the dermal lymphatic vasculature during embryonic development. Development 2018; 145:145/10/dev160184. [PMID: 29773646 DOI: 10.1242/dev.160184] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [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] [Accepted: 04/20/2018] [Indexed: 01/04/2023]
Abstract
Despite the essential role of the lymphatic vasculature in tissue homeostasis and disease, knowledge of the organ-specific origins of lymphatic endothelial progenitor cells remains limited. The assumption that most murine embryonic lymphatic endothelial cells (LECs) are venous derived has recently been challenged. Here, we show that the embryonic dermal blood capillary plexus constitutes an additional, local source of LECs that contributes to the formation of the dermal lymphatic vascular network. We describe a novel mechanism whereby rare PROX1-positive endothelial cells exit the capillary plexus in a Ccbe1-dependent manner to establish discrete LEC clusters. As development proceeds, these clusters expand and further contribute to the growing lymphatic system. Lineage tracing and analyses of Gata2-deficient mice confirmed that these clusters are endothelial in origin. Furthermore, ectopic expression of Vegfc in the vasculature increased the number of PROX1-positive progenitors within the capillary bed. Our work reveals a novel source of lymphatic endothelial progenitors employed during construction of the dermal lymphatic vasculature and demonstrates that the blood vasculature is likely to remain an ongoing source of LECs during organogenesis, raising the question of whether a similar mechanism operates during pathological lymphangiogenesis.
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Affiliation(s)
- Cathy Pichol-Thievend
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Kelly L Betterman
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide 5001, South Australia, Australia
| | - Xiaolei Liu
- Center for Vascular and Developmental Biology, Feinberg Cardiovascular Research Institute, Northwestern University, Chicago, IL 60611, USA
| | - Wanshu Ma
- Center for Vascular and Developmental Biology, Feinberg Cardiovascular Research Institute, Northwestern University, Chicago, IL 60611, USA
| | - Renae Skoczylas
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Emmanuelle Lesieur
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Frank L Bos
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Centre, Utrecht 3584CT, The Netherlands
| | - Dorte Schulte
- University of Münster, 48149 Münster, Germany Institute for Cardiovascular Organogenesis and Regeneration, Faculty of Medicine, Westfälische Wilhelms-Universität Münster (WWU), Mendelstrasse 7, 48149 Münster and CiM Cluster of Excellence, Germany
| | - Stefan Schulte-Merker
- University of Münster, 48149 Münster, Germany Institute for Cardiovascular Organogenesis and Regeneration, Faculty of Medicine, Westfälische Wilhelms-Universität Münster (WWU), Mendelstrasse 7, 48149 Münster and CiM Cluster of Excellence, Germany
| | - Benjamin M Hogan
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Guillermo Oliver
- Center for Vascular and Developmental Biology, Feinberg Cardiovascular Research Institute, Northwestern University, Chicago, IL 60611, USA
| | - Natasha L Harvey
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide 5001, South Australia, Australia
| | - Mathias Francois
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia
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16
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Tuchtan L, Lesieur E, Bartoli C, Delteil C, Sarda-Quarello L, Torrents J, Sigaudy S, Piercecchi MD, Gorincour G. Diagnosis of congenital abnormalities with post-mortem ultrasound in perinatal death. Diagn Interv Imaging 2017; 99:143-149. [PMID: 29229509 DOI: 10.1016/j.diii.2017.11.005] [Citation(s) in RCA: 14] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 10/18/2017] [Accepted: 11/14/2017] [Indexed: 01/01/2023]
Abstract
PURPOSE To determine the sensitivity and specificity of post-mortem ultrasound in the diagnosis of major congenital abnormalities of fetuses using conventional autopsy as the standard of reference. MATERIAL AND METHODS All fetuses coming from terminations of pregnancy or intrauterine fetal deaths in a single institution were included. A total of 75 fetuses were included during the study period. The results of post-mortem ultrasound examinations were compared to those of conventional autopsy that served as standard of reference. RESULTS Gestational age of the fetuses ranged from 15 to 38 weeks gestation. A complete post-mortem ultrasound assessment was possible in all fetuses. Regarding detection of brain abnormalities, post-mortem ultrasound had a sensitivity of 81.5% or 4/5 (95% CI: 63.3-91.8%), and a specificity of 97.9% (95% CI: 89.1-99.6%). Specificities for the diagnosis of thoracic, cardiac, urinary tract, spinal and bone abnormalities were 100%. CONCLUSION Post-mortem ultrasound shows high sensitivity and specificity for the diagnosis of congenital structural abnormalities as compared to conventional autopsy, with the exception of congenital cardiac diseases.
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Affiliation(s)
- L Tuchtan
- Department of forensic pathology, CHU Timone, AP-HM, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France; CNRS, EFS, ADES UMR 7268, Aix-Marseille university, 13916 Marseille, France; Department of fetopathology, CHU Timone, AP-HM, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
| | - E Lesieur
- Center for prenatal diagnosis, children hospital, CHU Timone, AP-HM, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
| | - C Bartoli
- Department of forensic pathology, CHU Timone, AP-HM, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France; CNRS, EFS, ADES UMR 7268, Aix-Marseille university, 13916 Marseille, France.
| | - C Delteil
- Department of forensic pathology, CHU Timone, AP-HM, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France; CNRS, EFS, ADES UMR 7268, Aix-Marseille university, 13916 Marseille, France.
| | - L Sarda-Quarello
- Department of fetopathology, CHU Timone, AP-HM, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
| | - J Torrents
- Department of forensic pathology, CHU Timone, AP-HM, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France; Department of fetopathology, CHU Timone, AP-HM, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
| | - S Sigaudy
- Center for prenatal diagnosis, children hospital, CHU Timone, AP-HM, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
| | - M-D Piercecchi
- Department of forensic pathology, CHU Timone, AP-HM, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France; CNRS, EFS, ADES UMR 7268, Aix-Marseille university, 13916 Marseille, France.
| | - G Gorincour
- Center for prenatal diagnosis, children hospital, CHU Timone, AP-HM, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France; Department of pediatric and prenatal imaging, La-Timone children hospital, Aix-Marseille university, CHU Timone, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
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17
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Chiang IKN, Fritzsche M, Pichol-Thievend C, Neal A, Holmes K, Lagendijk A, Overman J, D'Angelo D, Omini A, Hermkens D, Lesieur E, Fossat N, Radziewic T, Liu K, Ratnayaka I, Corada M, Bou-Gharios G, Tam PPL, Carroll J, Dejana E, Schulte-Merker S, Hogan BM, Beltrame M, De Val S, Francois M. Correction: SoxF factors induce Notch1 expression via direct transcriptional regulation during early arterial development. Development doi: 10.1242/dev.146241. Development 2017; 144:3847-3848. [PMID: 29042478 PMCID: PMC5675453 DOI: 10.1242/dev.159715] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Ivy Kim-Ni Chiang
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Martin Fritzsche
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, The University of Oxford, Oxford OX3 7DQ, UK
| | - Cathy Pichol-Thievend
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Alice Neal
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, The University of Oxford, Oxford OX3 7DQ, UK
| | - Kelly Holmes
- Cancer Research UK, The University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK
| | - Anne Lagendijk
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Jeroen Overman
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Donatella D'Angelo
- Dipartimento di Bioscienze, Universita' degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy
| | - Alice Omini
- Dipartimento di Bioscienze, Universita' degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy
| | - Dorien Hermkens
- University of Münster, 48149 Münster, Germany Institute for Cardiovascular Organogenesis and Regeneration, Faculty of Medicine, Westfälische Wilhelms-Universität Münster (WWU), Mendelstrasse 7, 48149 Münster and CiM Cluster of Excellence, Germany
| | - Emmanuelle Lesieur
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Nicolas Fossat
- Embryology Unit, Children's Medical Research Institute, Westmead NSW 2145, Australia
| | - Tania Radziewic
- Embryology Unit, Children's Medical Research Institute, Westmead NSW 2145, Australia
| | - Ke Liu
- Institute of Aging and Chronic Disease, University of Liverpool, Liverpool L69 3GA, UK
| | - Indrika Ratnayaka
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, The University of Oxford, Oxford OX3 7DQ, UK
| | - Monica Corada
- IFOM, FIRC Institute of Molecular Oncology, 1620139 Milan, Italy
| | - George Bou-Gharios
- Institute of Aging and Chronic Disease, University of Liverpool, Liverpool L69 3GA, UK
| | - Patrick P L Tam
- Embryology Unit, Children's Medical Research Institute, Westmead NSW 2145, Australia
- School of Medical Sciences, Sydney Medical School, University of Sydney, Westmead NSW 2145, Australia
| | - Jason Carroll
- Cancer Research UK, The University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK
| | - Elisabetta Dejana
- IFOM, FIRC Institute of Molecular Oncology, 1620139 Milan, Italy
- Department of Immunology Genetics and Pathology, Uppsala University, 75185 Uppsala, Sweden
| | - Stefan Schulte-Merker
- University of Münster, 48149 Münster, Germany Institute for Cardiovascular Organogenesis and Regeneration, Faculty of Medicine, Westfälische Wilhelms-Universität Münster (WWU), Mendelstrasse 7, 48149 Münster and CiM Cluster of Excellence, Germany
| | - Benjamin M Hogan
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Monica Beltrame
- Dipartimento di Bioscienze, Universita' degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy
| | - Sarah De Val
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, The University of Oxford, Oxford OX3 7DQ, UK
| | - Mathias Francois
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
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18
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Chiang IKN, Fritzsche M, Pichol-Thievend C, Neal A, Holmes K, Lagendijk A, Overman J, D'Angelo D, Omini A, Hermkens D, Lesieur E, Liu K, Ratnayaka I, Corada M, Bou-Gharios G, Carroll J, Dejana E, Schulte-Merker S, Hogan B, Beltrame M, De Val S, Francois M. SoxF factors induce Notch1 expression via direct transcriptional regulation during early arterial development. Development 2017; 144:2629-2639. [PMID: 28619820 PMCID: PMC5536923 DOI: 10.1242/dev.146241] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 06/07/2017] [Indexed: 12/30/2022]
Abstract
Arterial specification and differentiation are influenced by a number of regulatory pathways. While it is known that the Vegfa-Notch cascade plays a central role, the transcriptional hierarchy controlling arterial specification has not been fully delineated. To elucidate the direct transcriptional regulators of Notch receptor expression in arterial endothelial cells, we used histone signatures, DNaseI hypersensitivity and ChIP-seq data to identify enhancers for the human NOTCH1 and zebrafish notch1b genes. These enhancers were able to direct arterial endothelial cell-restricted expression in transgenic models. Genetic disruption of SoxF binding sites established a clear requirement for members of this group of transcription factors (SOX7, SOX17 and SOX18) to drive the activity of these enhancers in vivo Endogenous deletion of the notch1b enhancer led to a significant loss of arterial connections to the dorsal aorta in Notch pathway-deficient zebrafish. Loss of SoxF function revealed that these factors are necessary for NOTCH1 and notch1b enhancer activity and for correct endogenous transcription of these genes. These findings position SoxF transcription factors directly upstream of Notch receptor expression during the acquisition of arterial identity in vertebrates.
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MESH Headings
- Amino Acid Sequence
- Animals
- Animals, Genetically Modified
- Arteries/embryology
- Arteries/metabolism
- Arteriovenous Malformations/embryology
- Arteriovenous Malformations/genetics
- Arteriovenous Malformations/metabolism
- Enhancer Elements, Genetic
- Female
- Gene Expression Regulation, Developmental
- Human Umbilical Vein Endothelial Cells
- Humans
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Transgenic
- Pregnancy
- Receptor, Notch1/deficiency
- Receptor, Notch1/genetics
- Receptor, Notch1/metabolism
- SOXF Transcription Factors/deficiency
- SOXF Transcription Factors/genetics
- SOXF Transcription Factors/metabolism
- Sequence Homology, Amino Acid
- Signal Transduction
- Zebrafish
- Zebrafish Proteins/deficiency
- Zebrafish Proteins/genetics
- Zebrafish Proteins/metabolism
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Affiliation(s)
- Ivy Kim-Ni Chiang
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Martin Fritzsche
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, The University of Oxford, Oxford OX3 7DQ, UK
| | - Cathy Pichol-Thievend
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Alice Neal
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, The University of Oxford, Oxford OX3 7DQ, UK
| | - Kelly Holmes
- Cancer Research UK, The University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK
| | - Anne Lagendijk
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Jeroen Overman
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Donatella D'Angelo
- Dipartimento di Bioscienze, Universita' degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy
| | - Alice Omini
- Dipartimento di Bioscienze, Universita' degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy
| | - Dorien Hermkens
- University of Münster, 48149 Münster, Germany Institute for Cardiovascular Organogenesis and Regeneration, Faculty of Medicine, Westfälische Wilhelms-Universität Münster (WWU), Mendelstrasse 7, 48149 Münster and CiM Cluster of Excellence, Germany
| | - Emmanuelle Lesieur
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Ke Liu
- Institute of Aging and Chronic Disease, University of Liverpool, Liverpool L69 3GA, UK
| | - Indrika Ratnayaka
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, The University of Oxford, Oxford OX3 7DQ, UK
| | - Monica Corada
- IFOM, FIRC Institute of Molecular Oncology, 1620139 Milan, Italy
| | - George Bou-Gharios
- Institute of Aging and Chronic Disease, University of Liverpool, Liverpool L69 3GA, UK
| | - Jason Carroll
- Cancer Research UK, The University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK
| | - Elisabetta Dejana
- IFOM, FIRC Institute of Molecular Oncology, 1620139 Milan, Italy
- Department of Immunology Genetics and Pathology, Uppsala University, 75185 Uppsala, Sweden
| | - Stefan Schulte-Merker
- University of Münster, 48149 Münster, Germany Institute for Cardiovascular Organogenesis and Regeneration, Faculty of Medicine, Westfälische Wilhelms-Universität Münster (WWU), Mendelstrasse 7, 48149 Münster and CiM Cluster of Excellence, Germany
| | - Benjamin Hogan
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Monica Beltrame
- Dipartimento di Bioscienze, Universita' degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy
| | - Sarah De Val
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, The University of Oxford, Oxford OX3 7DQ, UK
| | - Mathias Francois
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
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19
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Hamdaoui N, Dabadie A, Lesieur E, Quarello E, Kheiri M, Hery G, Guidicelli B, Bretelle F, Gorincour G. [Ultrasound of the fetal urinary system during the first trimester of pregnancy]. Gynecol Obstet Fertil Senol 2017; 45:373-380. [PMID: 28552751 DOI: 10.1016/j.gofs.2017.05.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 05/02/2017] [Indexed: 12/27/2022]
Abstract
The detection of abnormalities of the fetal urinary system in the first trimester of pregnancy is constantly improving, namely owing to the improved resolution of the image, the use of the endovaginal approach and thanks to sonographers' constant training. The pathological aspects, usually detected in the second trimester of pregnancy, can be suspected early in the first trimester and range from kidneys' cavity dilation to bilateral renal agenesis, polycystic kidney disease, multi-cystic dysplasia and bladder megavessia or bladder exstrophy. A poly-malformative syndrome is to be found out. The detection of an abnormality of the urinary tract requires a close ultrasound check. Very often, the pathological aspects tend to disappear spontaneously. In particular, the non-visualization of the bladder requires repeated examinations during the same session or even a little later in the pregnancy. We will carry out a review of the literature by pointing out the usual and unusual aspects of the fetal urinary system visible in the first trimester and we will as well propose an algorithm describing how to deal with abnormalities of the urinary tract that can be found out at first trimester ultrasound.
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Affiliation(s)
- N Hamdaoui
- Centre de diagnostic prénatal, hôpital Timone-Enfants, 264, rue Saint-Pierre, 13385 Marseille, France.
| | - A Dabadie
- Service d'imagerie pédiatrique et prénatale, hôpital Timone-Enfants, 264, rue Saint-Pierre, 13385 Marseille, France
| | - E Lesieur
- Centre de diagnostic prénatal, hôpital Timone-Enfants, 264, rue Saint-Pierre, 13385 Marseille, France
| | - E Quarello
- Département d'échographies obstétricales, fondation-hôpital Saint-Joseph, 26, boulevard de Louvain, 13008 Marseille, France; Institut de médecine de la reproduction, 6, rue Rocca, 13008 Marseille, France
| | - M Kheiri
- Service d'imagerie pédiatrique et prénatale, hôpital Timone-Enfants, 264, rue Saint-Pierre, 13385 Marseille, France
| | - G Hery
- Centre de diagnostic prénatal, hôpital Timone-Enfants, 264, rue Saint-Pierre, 13385 Marseille, France; Service de chirurgie pédiatrique, hôpital Timone-Enfants, 264, rue Saint-Pierre, 13385 Marseille, France
| | - B Guidicelli
- Centre de diagnostic prénatal, hôpital Timone-Enfants, 264, rue Saint-Pierre, 13385 Marseille, France
| | - F Bretelle
- Centre de diagnostic prénatal, hôpital Timone-Enfants, 264, rue Saint-Pierre, 13385 Marseille, France
| | - G Gorincour
- Centre de diagnostic prénatal, hôpital Timone-Enfants, 264, rue Saint-Pierre, 13385 Marseille, France; Service d'imagerie pédiatrique et prénatale, hôpital Timone-Enfants, 264, rue Saint-Pierre, 13385 Marseille, France
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20
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Lesieur E, Boubnova J, Héry G, Lafouge A, Quarello E, Bretelle F, Sigaudy S, Gorincour G. Prenatal imaging presentation of Meckel diverticulum. Diagn Interv Imaging 2017; 98:569-570. [PMID: 28412231 DOI: 10.1016/j.diii.2017.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 03/22/2017] [Accepted: 03/23/2017] [Indexed: 10/19/2022]
Affiliation(s)
- E Lesieur
- Center for Prenatal Diagnosis, La Timone Children Hospital, 13000 Marseille, France
| | - J Boubnova
- Department of Pediatric Surgery, La Timone Children Hospital, 13000 Marseille, France
| | - G Héry
- Department of Pediatric Surgery, La Timone Children Hospital, 13000 Marseille, France
| | - A Lafouge
- Cabinet de radiologie, Toulon, France
| | - E Quarello
- Institut méditerranéen de la reproduction, 13000 Marseille, France
| | - F Bretelle
- Center for Prenatal Diagnosis, La Timone Children Hospital, 13000 Marseille, France
| | - S Sigaudy
- Center for Prenatal Diagnosis, La Timone Children Hospital, 13000 Marseille, France
| | - G Gorincour
- Center for Prenatal Diagnosis, La Timone Children Hospital, 13000 Marseille, France; Department of Prenatal and Pediatric Imaging, La Timone Children Hospital, 13000 Marseille, France.
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21
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Overman J, Fontaine F, Moustaqil M, Mittal D, Sierecki E, Sacilotto N, Zuegg J, Robertson AAB, Holmes K, Salim AA, Mamidyala S, Butler MS, Robinson AS, Lesieur E, Johnston W, Alexandrov K, Black BL, Hogan BM, De Val S, Capon RJ, Carroll JS, Bailey TL, Koopman P, Jauch R, Smyth MJ, Cooper MA, Gambin Y, Francois M. Pharmacological targeting of the transcription factor SOX18 delays breast cancer in mice. eLife 2017; 6:e21221. [PMID: 28137359 PMCID: PMC5283831 DOI: 10.7554/elife.21221] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Accepted: 12/07/2016] [Indexed: 12/31/2022] Open
Abstract
Pharmacological targeting of transcription factors holds great promise for the development of new therapeutics, but strategies based on blockade of DNA binding, nuclear shuttling, or individual protein partner recruitment have yielded limited success to date. Transcription factors typically engage in complex interaction networks, likely masking the effects of specifically inhibiting single protein-protein interactions. Here, we used a combination of genomic, proteomic and biophysical methods to discover a suite of protein-protein interactions involving the SOX18 transcription factor, a known regulator of vascular development and disease. We describe a small-molecule that is able to disrupt a discrete subset of SOX18-dependent interactions. This compound selectively suppressed SOX18 transcriptional outputs in vitro and interfered with vascular development in zebrafish larvae. In a mouse pre-clinical model of breast cancer, treatment with this inhibitor significantly improved survival by reducing tumour vascular density and metastatic spread. Our studies validate an interactome-based molecular strategy to interfere with transcription factor activity, for the development of novel disease therapeutics.
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Affiliation(s)
- Jeroen Overman
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Frank Fontaine
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Mehdi Moustaqil
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
- Single Molecule Science, Lowy Cancer Research Centre, The University of New South Wales, Sydney, Australia
| | - Deepak Mittal
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
| | - Emma Sierecki
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
- Single Molecule Science, Lowy Cancer Research Centre, The University of New South Wales, Sydney, Australia
| | - Natalia Sacilotto
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, The University of Oxford, Oxford, United Kingdom
| | - Johannes Zuegg
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Avril AB Robertson
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Kelly Holmes
- Cancer Research UK, The University of Cambridge, Li Ka Shing Centre, Cambridge, United Kingdom
| | - Angela A Salim
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Sreeman Mamidyala
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Mark S Butler
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Ashley S Robinson
- Cardiovascular Research Institute, The University of California, San Francisco, San Francisco, United States
| | - Emmanuelle Lesieur
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Wayne Johnston
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Kirill Alexandrov
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Brian L Black
- Cardiovascular Research Institute, The University of California, San Francisco, San Francisco, United States
| | - Benjamin M Hogan
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Sarah De Val
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, The University of Oxford, Oxford, United Kingdom
| | - Robert J Capon
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Jason S Carroll
- Cancer Research UK, The University of Cambridge, Li Ka Shing Centre, Cambridge, United Kingdom
| | - Timothy L Bailey
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Peter Koopman
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Ralf Jauch
- Genome Regulation Laboratory, Drug Discovery Pipeline, CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
- Guangzhou Medical University, Guangzhou, China
| | - Mark J Smyth
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
- School of Medicine, The University of Queensland, Herston, Australia
| | - Matthew A Cooper
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Yann Gambin
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
- Single Molecule Science, Lowy Cancer Research Centre, The University of New South Wales, Sydney, Australia
| | - Mathias Francois
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
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22
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Lesieur E, Dabadie A, Pico H, Capelle M, Bretelle F, Gorincour G. Facing the next frontier of fetal magnetic resonance imaging. Ultrasound Obstet Gynecol 2016; 48:125-126. [PMID: 26499311 DOI: 10.1002/uog.15794] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Revised: 10/07/2015] [Accepted: 10/20/2015] [Indexed: 06/05/2023]
Affiliation(s)
- E Lesieur
- Prenatal Diagnosis, La Timone Children Hospital, Marseille, France
| | - A Dabadie
- Pediatric and Prenatal Imaging, La Timone Children Hospital, Marseille, France
| | - H Pico
- Pediatric and Prenatal Imaging, La Timone Children Hospital, Marseille, France
| | - M Capelle
- Prenatal Diagnosis, La Timone Children Hospital, Marseille, France
| | - F Bretelle
- Gynecology and Obstetrics, Conception Hospital, Marseille, France
| | - G Gorincour
- Pediatric and Prenatal Imaging, La Timone Children Hospital, Marseille, France
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23
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Lesieur E, Lecompte JF, Gorincour G, Potier A, Héry G, Bretelle F, Sigaudy S, de Lagausie P. Prenatal diagnosis of complete nonrotation of fetal bowel with ultrasound and magnetic resonance imaging. Diagn Interv Imaging 2016; 97:687-9. [DOI: 10.1016/j.diii.2016.01.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 01/04/2016] [Accepted: 01/06/2016] [Indexed: 11/29/2022]
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24
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Lesieur E, Menager N, Delagausie P, Verschuur A, Bretelle F, Coze C, Scavarda D, Guidicelli B, Gorincour G. Fetal paravertebral congenital fibrosarcoma: MR imaging findings. Diagn Interv Imaging 2015; 97:483-5. [PMID: 26711551 DOI: 10.1016/j.diii.2015.11.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 11/25/2015] [Indexed: 10/22/2022]
Affiliation(s)
- E Lesieur
- Hôpital La Conception, Department of Gynecology and Obstetrics, 147, boulevard Baille, 13385 Marseille cedex 5, France; Children's Hospital La Timone, Multidisciplinary Center for Prenatal Diagnosis, 264, rue Saint-Pierre, 13385 Marseille cedex, France
| | - N Menager
- Department of Gynecology and Obstetrics, 305, rue Raoul-Follereau, 84902 Avignon, France
| | - P Delagausie
- Children's Hospital La Timone, Multidisciplinary Center for Prenatal Diagnosis, 264, rue Saint-Pierre, 13385 Marseille cedex, France; Children's Hospital La Timone, Department of Pediatric Surgery, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France
| | - A Verschuur
- Children's Hospital La Timone, Department of Pediatric Oncology, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France
| | - F Bretelle
- Children's Hospital La Timone, Multidisciplinary Center for Prenatal Diagnosis, 264, rue Saint-Pierre, 13385 Marseille cedex, France; Hôpital Nord, Department of Gynecology and Obstetrics, chemin des Bourrely, 13015 Marseille, France
| | - C Coze
- Children's Hospital La Timone, Department of Pediatric Oncology, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France
| | - D Scavarda
- Chidren's Hospital La Timone, Department of Neurosurgery, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France
| | - B Guidicelli
- Hôpital La Conception, Department of Gynecology and Obstetrics, 147, boulevard Baille, 13385 Marseille cedex 5, France; Children's Hospital La Timone, Multidisciplinary Center for Prenatal Diagnosis, 264, rue Saint-Pierre, 13385 Marseille cedex, France
| | - G Gorincour
- Children's Hospital La Timone, Multidisciplinary Center for Prenatal Diagnosis, 264, rue Saint-Pierre, 13385 Marseille cedex, France; Children's Hospital La Timone, Department of Pediatric Imaging, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
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25
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Kartopawiro J, Bower NI, Karnezis T, Kazenwadel J, Betterman KL, Lesieur E, Koltowska K, Astin J, Crosier P, Vermeren S, Achen MG, Stacker SA, Smith KA, Harvey NL, François M, Hogan BM. Arap3 is dysregulated in a mouse model of hypotrichosis–lymphedema–telangiectasia and regulates lymphatic vascular development. Hum Mol Genet 2013; 23:1286-97. [DOI: 10.1093/hmg/ddt518] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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26
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Chen H, Palmer JS, Thiagarajan RD, Dinger ME, Lesieur E, Chiu H, Schulz A, Spiller C, Grimmond SM, Little MH, Koopman P, Wilhelm D. Identification of novel markers of mouse fetal ovary development. PLoS One 2012; 7:e41683. [PMID: 22844512 PMCID: PMC3406020 DOI: 10.1371/journal.pone.0041683] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Accepted: 06/25/2012] [Indexed: 11/18/2022] Open
Abstract
In contrast to the developing testis, molecular pathways driving fetal ovarian development have been difficult to characterise. To date no single master regulator of ovarian development has been identified that would be considered the female equivalent of Sry. Using a genomic approach we identified a number of novel protein-coding as well as non-coding genes that were detectable at higher levels in the ovary compared to testis during early mouse gonad development. We were able to cluster these ovarian genes into different temporal expression categories. Of note, Lrrc34 and AK015184 were detected in XX but not XY germ cells before the onset of sex-specific germ cell differentiation marked by entry into meiosis in an ovary and mitotic arrest in a testis. We also defined distinct spatial expression domains of somatic cell genes in the developing ovary. Our data expands the set of markers of early mouse ovary differentiation and identifies a classification of early ovarian genes, thus providing additional avenues with which to dissect this process.
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Affiliation(s)
- Huijun Chen
- Division of Molecular Genetics and Development, Institute for Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | - James S. Palmer
- Division of Molecular Genetics and Development, Institute for Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | - Rathi D. Thiagarajan
- Division of Molecular Genetics and Development, Institute for Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | - Marcel E. Dinger
- Division of Molecular Genetics and Development, Institute for Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | - Emmanuelle Lesieur
- Division of Molecular Genetics and Development, Institute for Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | - Hansheng Chiu
- Division of Molecular Genetics and Development, Institute for Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | - Alexandra Schulz
- Division of Molecular Genetics and Development, Institute for Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | - Cassy Spiller
- Division of Molecular Genetics and Development, Institute for Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | - Sean M. Grimmond
- Division of Molecular Genetics and Development, Institute for Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | - Melissa H. Little
- Division of Molecular Genetics and Development, Institute for Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | - Peter Koopman
- Division of Molecular Genetics and Development, Institute for Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | - Dagmar Wilhelm
- Division of Molecular Genetics and Development, Institute for Molecular Biosciences, The University of Queensland, Brisbane, Australia
- * E-mail:
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27
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Georgas K, Chiu H, Lesieur E, Rumballe B, Little MH. Expression of metanephric nephron-patterning genes in differentiating mesonephric tubules. Dev Dyn 2011. [DOI: 10.1002/dvdy.22697] [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: 11/10/2022] Open
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28
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Georgas KM, Chiu HS, Lesieur E, Rumballe BA, Little MH. Expression of metanephric nephron-patterning genes in differentiating mesonephric tubules. Dev Dyn 2011; 240:1600-12. [PMID: 21491542 DOI: 10.1002/dvdy.22640] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/2011] [Indexed: 12/14/2022] Open
Abstract
The metanephros is the functional organ in adult amniotes while the mesonephros degenerates. However, parallel tubulogenetic events are thought to exist between mesonephros and metanephros. Mesonephric tubules are retained in males and differentiate into efferent ducts of the male reproductive tract. By examining the murine mesonephric expression of markers of distinct stages and regions of metanephric nephrons during tubule formation and patterning, we provide further evidence to support this common morphogenetic mechanism. Renal vesicle, early proximal and distal tubule, loop of Henle, and renal corpuscle genes were expressed by mesonephric tubules. Vip, Slc6a20b, and Slc18a1 were male-specific. In contrast, mining of the GUDMAP database identified candidate late mesonephros-specific genes, 10 of which were restricted to the male. Among the male-specific genes are candidates for regulating ion/fluid balance within the efferent ducts, thereby regulating sperm maturation and genes marking tubule-associated neurons potentially critical for normal male reproductive tract function.
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Affiliation(s)
- K M Georgas
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Australia
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Thiagarajan RD, Georgas KM, Rumballe BA, Lesieur E, Chiu HS, Taylor D, Tang DTP, Grimmond SM, Little MH. Identification of anchor genes during kidney development defines ontological relationships, molecular subcompartments and regulatory pathways. PLoS One 2011; 6:e17286. [PMID: 21386911 PMCID: PMC3046260 DOI: 10.1371/journal.pone.0017286] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Accepted: 01/26/2011] [Indexed: 01/11/2023] Open
Abstract
The development of the mammalian kidney is well conserved from mouse to man. Despite considerable temporal and spatial data on gene expression in mammalian kidney development, primarily in rodent species, there is a paucity of genes whose expression is absolutely specific to a given anatomical compartment and/or developmental stage, defined here as ‘anchor’ genes. We previously generated an atlas of gene expression in the developing mouse kidney using microarray analysis of anatomical compartments collected via laser capture microdissection. Here, this data is further analysed to identify anchor genes via stringent bioinformatic filtering followed by high resolution section in situ hybridisation performed on 200 transcripts selected as specific to one of 11 anatomical compartments within the midgestation mouse kidney. A total of 37 anchor genes were identified across 6 compartments with the early proximal tubule being the compartment richest in anchor genes. Analysis of minimal and evolutionarily conserved promoter regions of this set of 25 anchor genes identified enrichment of transcription factor binding sites for Hnf4a and Hnf1b, RbpJ (Notch signalling), PPARγ:RxRA and COUP-TF family transcription factors. This was reinforced by GO analyses which also identified these anchor genes as targets in processes including epithelial proliferation and proximal tubular function. As well as defining anchor genes, this large scale validation of gene expression identified a further 92 compartment-enriched genes able to subcompartmentalise key processes during murine renal organogenesis spatially or ontologically. This included a cohort of 13 ureteric epithelial genes revealing previously unappreciated compartmentalisation of the collecting duct system and a series of early tubule genes suggesting that segmentation into proximal tubule, loop of Henle and distal tubule does not occur until the onset of glomerular vascularisation. Overall, this study serves to illuminate previously ill-defined stages of patterning and will enable further refinement of the lineage relationships within mammalian kidney development.
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Affiliation(s)
- Rathi D. Thiagarajan
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Australia
| | - Kylie M. Georgas
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Australia
| | - Bree A. Rumballe
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Australia
| | - Emmanuelle Lesieur
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Australia
| | - Han Sheng Chiu
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Australia
| | - Darrin Taylor
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Australia
| | - Dave T. P. Tang
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Australia
| | - Sean M. Grimmond
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Australia
- * E-mail: (MHL); (SMG)
| | - Melissa H. Little
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Australia
- * E-mail: (MHL); (SMG)
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Combes AN, Lesieur E, Harley VR, Sinclair AH, Little MH, Wilhelm D, Koopman P. Three-dimensional visualization of testis cord morphogenesis, a novel tubulogenic mechanism in development. Dev Dyn 2009; 238:1033-41. [PMID: 19334288 DOI: 10.1002/dvdy.21925] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Testis cords are specialized tubes essential for generation and export of sperm, yet the mechanisms directing their formation, and the regulation of their position, size, shape, and number remain unclear. Here, we use a novel fluorescence-based three-dimensional modeling approach to show that cords initially form as a network of irregular cell clusters that are subsequently remodeled to form regular parallel loops, joined by a flattened plexus at the mesonephric side. Variation in cord number and structure demonstrates that cord specification is not stereotypic, although cord alignment and diameter becomes relatively consistent, implicating compensatory growth mechanisms. Branched, fused, and internalized cords were commonly observed. We conclude that the tubule-like structure of testis cords arise through a novel form of morphogenesis consisting of coalescence, partitioning, and remodeling. The methods we describe are applicable to investigating defects in testis cord development in mouse models, and more broadly, studying morphogenesis of other tissues.
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Affiliation(s)
- Alexander N Combes
- Division of Molecular Genetics and Development, Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
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Georgas K, Rumballe B, Valerius MT, Chiu HS, Thiagarajan RD, Lesieur E, Aronow BJ, Brunskill EW, Combes AN, Tang D, Taylor D, Grimmond SM, Potter SS, McMahon AP, Little MH. Analysis of early nephron patterning reveals a role for distal RV proliferation in fusion to the ureteric tip via a cap mesenchyme-derived connecting segment. Dev Biol 2009; 332:273-86. [PMID: 19501082 DOI: 10.1016/j.ydbio.2009.05.578] [Citation(s) in RCA: 175] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2009] [Revised: 05/28/2009] [Accepted: 05/29/2009] [Indexed: 01/04/2023]
Abstract
While nephron formation is known to be initiated by a mesenchyme-to-epithelial transition of the cap mesenchyme to form a renal vesicle (RV), the subsequent patterning of the nephron and fusion with the ureteric component of the kidney to form a patent contiguous uriniferous tubule has not been fully characterized. Using dual section in situ hybridization (SISH)/immunohistochemistry (IHC) we have revealed distinct distal/proximal patterning of Notch, BMP and Wnt pathway components within the RV stage nephron. Quantitation of mitoses and Cyclin D1 expression indicated that cell proliferation was higher in the distal RV, reflecting the differential developmental programs of the proximal and distal populations. A small number of RV genes were also expressed in the early connecting segment of the nephron. Dual ISH/IHC combined with serial section immunofluorescence and 3D reconstruction revealed that fusion occurs between the late RV and adjacent ureteric tip via a process that involves loss of the intervening ureteric epithelial basement membrane and insertion of cells expressing RV markers into the ureteric tip. Using Six2-eGFPCre x R26R-lacZ mice, we demonstrate that these cells are derived from the cap mesenchyme and not the ureteric epithelium. Hence, both nephron patterning and patency are evident at the late renal vesicle stage.
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Affiliation(s)
- Kylie Georgas
- NHMRC Principal Research Fellow, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Australia
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Abstract
Proresilin is the precursor protein for resilin, an extremely elastic, hydrated, cross-linked insoluble protein found in insects. We investigated the secondary-structure distribution in solution of a synthetic proresilin (AN16), based on 16 units of the consensus proresilin repeat from Anopheles gambiae. Raman spectroscopy was used to verify that the secondary-structure distributions in cross-linked AN16 resilin and in AN16 proresilin are similar, and hence that solution techniques (such as NMR and circular dichroism) may be used to gain information about the structure of the cross-linked solid. The synthetic proresilin AN16 is an intrinsically unstructured protein, displaying under native conditions many of the characteristics normally observed in denatured proteins. There are no apparent alpha-helical or beta-sheet features in the NMR spectra, and the majority of backbone protons and carbons exhibit chemical shifts characteristic of random-coil configurations. Relatively few peaks are observed in the nuclear Overhauser effect spectra, indicating that overall the protein is dynamic and unstructured. The radius of gyration of AN16 corresponds to the value expected for a denatured protein of similar chain length. This high degree of disorder is also consistent with observed circular dichroism and Raman spectra. The temperature dependences of the NH proton chemical shifts were also measured. Most values were indicative of protons exposed to water, although smaller dependences were observed for glycine and alanine within the Tyr-Gly-Ala-Pro sequence conserved in all resilins found to date, which is the site of dityrosine cross-link formation. This result implies that these residues are involved in hydrogen bonds, possibly to enable efficient self-association and subsequent cross-linking. The beta-spiral model for elastic proteins, where the protein is itself shaped like a spring, is not supported by the results for AN16. Both the random-network elastomer model and the sliding beta-turn model are consistent with the data. The results indicate a flat energy landscape for AN16, with very little energy required to switch between conformations. This ease of switching is likely to lead to the extremely low energy loss on deformation of resilin.
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Affiliation(s)
- Kate M Nairn
- CSIRO Materials Science and Engineering, Clayton, Victoria, Australia.
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Georgas K, Rumballe B, Wilkinson L, Chiu HS, Lesieur E, Gilbert T, Little MH. Use of dual section mRNA in situ hybridisation/immunohistochemistry to clarify gene expression patterns during the early stages of nephron development in the embryo and in the mature nephron of the adult mouse kidney. Histochem Cell Biol 2008; 130:927-42. [DOI: 10.1007/s00418-008-0454-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/29/2008] [Indexed: 10/21/2022]
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Lyons RE, Lesieur E, Kim M, Wong DCC, Huson MG, Nairn KM, Brownlee AG, Pearson RD, Elvin CM. Design and facile production of recombinant resilin-like polypeptides: gene construction and a rapid protein purification method. Protein Eng Des Sel 2007; 20:25-32. [PMID: 17218334 DOI: 10.1093/protein/gzl050] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [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: 11/14/2022] Open
Abstract
Resilin is an elastic protein found in specialized regions of the cuticle of insects, which displays unique resilience and fatigue lifetime properties. As is the case with many elastomeric proteins, including elastin, gliadin and spider silks, resilin contains distinct repetitive domains that appear to confer elastic properties to the protein. Recent work within our laboratory has demonstrated that cloning and expression of exon 1 of the Drosophila melanogaster CG15920 gene, encoding a putative resilin-like protein, results in a recombinant protein that can be photochemically crosslinked to form a highly resilient, elastic biomaterial (Rec1 resilin). The current study describes a recursive cloning strategy for generating synthetic genes encoding multiple copies of consensus polypeptides, based on the repetitive domains within resilin-like genes from D. melanogaster and Anopheles gambiae. A simple non-chromatographic purification method that can be applied to these synthetic proteins and Rec1 is also reported. These methods for the design and purification of resilin-like periodic polypeptides will facilitate the future investigation of structural and functional properties of resilin, and the development of novel highly resilient biomaterials.
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Affiliation(s)
- Russell E Lyons
- CSIRO Livestock Industries, Queensland Bioscience Precinct, St Lucia, QLD 4072, Australia.
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