1
|
Shen Y, Lotenberg K, Zaworski J, Broeker KAE, Vasseur F, Louedec L, Placier S, Frère P, Verpont MC, Galichon P, Buob D, Hadchouel J, Terzi F, Chatziantoniou C, Calmont A. Neuropilin-1 regulates renin synthesis in juxtaglomerular cells. J Physiol 2024; 602:1815-1833. [PMID: 38381008 DOI: 10.1113/jp285422] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 02/06/2024] [Indexed: 02/22/2024] Open
Abstract
Renin is the key enzyme of the systemic renin-angiotensin-aldosterone system, which plays an essential role in regulating blood pressure and maintaining electrolyte and extracellular volume homeostasis. Renin is mainly produced and secreted by specialized juxtaglomerular (JG) cells in the kidney. In the present study, we report for the first time that the conserved transmembrane receptor neuropilin-1 (NRP1) participates in the development of JG cells and plays a key role in renin production. We used the myelin protein zero-Cre (P0-Cre) to abrogate Nrp1 constitutively in P0-Cre lineage-labelled cells of the kidney. We found that the P0-Cre precursor cells differentiate into renin-producing JG cells. We employed a lineage-tracing strategy combined with RNAscope quantification and metabolic studies to reveal a cell-autonomous role for NRP1 in JG cell function. Nrp1-deficient animals displayed abnormal levels of tissue renin expression and failed to adapt properly to a homeostatic challenge to sodium balance. These findings provide new insights into cell fate decisions and cellular plasticity operating in P0-Cre-expressing precursors and identify NRP1 as a novel key regulator of JG cell maturation. KEY POINTS: Renin is a centrepiece of the renin-angiotensin-aldosterone system and is produced by specialized juxtaglomerular cells (JG) of the kidney. Neuropilin-1 (NRP1) is a conserved membrane-bound receptor that regulates vascular and neuronal development, cancer aggressiveness and fibrosis progression. We used conditional mutagenesis and lineage tracing to show that NRP1 is expressed in JG cells where it regulates their function. Cell-specific Nrp1 knockout mice present with renin paucity in JG cells and struggle to adapt to a homeostatic challenge to sodium balance. The results support the versatility of renin-producing cells in the kidney and may open new avenues for therapeutic approaches.
Collapse
Affiliation(s)
- Yunzhu Shen
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, Hôpital Tenon, Paris, France
| | - Kenza Lotenberg
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, Hôpital Tenon, Paris, France
| | - Jeremy Zaworski
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, Hôpital Tenon, Paris, France
| | | | - Florence Vasseur
- Institut Necker Enfants Malades, Growth and Signalling departement, Université Paris Cité, INSERM U1151, CNRS UMR 8253, Paris, France
| | - Liliane Louedec
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, Hôpital Tenon, Paris, France
| | - Sandrine Placier
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, Hôpital Tenon, Paris, France
| | - Perrine Frère
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, Hôpital Tenon, Paris, France
| | - Marie-Christine Verpont
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, Hôpital Tenon, Paris, France
| | - Pierre Galichon
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, Hôpital Tenon, Paris, France
| | - David Buob
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, Hôpital Tenon, Paris, France
| | - Juliette Hadchouel
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, Hôpital Tenon, Paris, France
| | - Fabiola Terzi
- Institut Necker Enfants Malades, Growth and Signalling departement, Université Paris Cité, INSERM U1151, CNRS UMR 8253, Paris, France
| | - Christos Chatziantoniou
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, Hôpital Tenon, Paris, France
| | - Amélie Calmont
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, Hôpital Tenon, Paris, France
| |
Collapse
|
2
|
Cai A, Placier S, Louedec L, Frère P, Ouchelouche S, Chatziantoniou C, Calmont A. A Novel Role of Semaphorin 3C in Modulating Systemic and Renal Hemodynamics. Nephron Clin Pract 2022:1-7. [PMID: 36580904 PMCID: PMC10389799 DOI: 10.1159/000528259] [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: 03/18/2022] [Accepted: 11/04/2022] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Alterations of renal hemodynamics play an essential role in renal homeostasis and kidney diseases. Recent data indicated that semaphorin 3C (SEMA3C), a secreted glycoprotein involved in vessel development, can modulate renal vascular permeability in acute kidney injury, but whether and how it might impact systemic and renal hemodynamics is unknown. OBJECTIVES The objective of the study was to explore the effect of SEMA3C on systemic and renal hemodynamics. METHODS SEMA3C recombinant protein was administered intravenously in two-month-old wild-type mice, and the variations of mean arterial pressure, heart rate, renal blood flow, and renal vascular resistance were measured and analyzed. RESULTS Acute administration of SEMA3C induced (i) systemic hemodynamic changes, including mean arterial pressure decrease and heart rate augmentation; (ii) renal hemodynamic changes, including reduced vascular resistance and elevated renal blood flow. Continuous perfusion of SEMA3C had no significant effect on systemic or renal hemodynamics. CONCLUSION SEMA3C is a potent vasodilator affecting both systemic and renal hemodynamics in mice.
Collapse
Affiliation(s)
- Anxiang Cai
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, AP-HP, Hôpital Tenon, Paris, France
| | - Sandrine Placier
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, AP-HP, Hôpital Tenon, Paris, France
| | - Liliane Louedec
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, AP-HP, Hôpital Tenon, Paris, France
| | - Perrine Frère
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, AP-HP, Hôpital Tenon, Paris, France
| | - Souhila Ouchelouche
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, AP-HP, Hôpital Tenon, Paris, France
| | - Christos Chatziantoniou
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, AP-HP, Hôpital Tenon, Paris, France
| | - Amélie Calmont
- Sorbonne Université, INSERM, Unité mixte de Recherche 1155, Kidney Research Centre, AP-HP, Hôpital Tenon, Paris, France
| |
Collapse
|
3
|
Faklaris O, Bancel-Vallée L, Dauphin A, Monterroso B, Frère P, Geny D, Manoliu T, de Rossi S, Cordelières FP, Schapman D, Nitschke R, Cau J, Guilbert T. Quality assessment in light microscopy for routine use through simple tools and robust metrics. J Biophys Biochem Cytol 2022; 221:213512. [PMID: 36173380 PMCID: PMC9526251 DOI: 10.1083/jcb.202107093] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 04/04/2022] [Accepted: 08/31/2022] [Indexed: 11/22/2022] Open
Abstract
Although there is a need to demonstrate reproducibility in light microscopy acquisitions, the lack of standardized guidelines monitoring microscope health status over time has so far impaired the widespread use of quality control (QC) measurements. As scientists from 10 imaging core facilities who encounter various types of projects, we provide affordable hardware and open source software tools, rigorous protocols, and define reference values to assess QC metrics for the most common fluorescence light microscopy modalities. Seven protocols specify metrics on the microscope resolution, field illumination flatness, chromatic aberrations, illumination power stability, stage drift, positioning repeatability, and spatial-temporal noise of camera sensors. We designed the MetroloJ_QC ImageJ/Fiji Java plugin to incorporate the metrics and automate analysis. Measurements allow us to propose an extensive characterization of the QC procedures that can be used by any seasoned microscope user, from research biologists with a specialized interest in fluorescence light microscopy through to core facility staff, to ensure reproducible and quantifiable microscopy results.
Collapse
Affiliation(s)
- Orestis Faklaris
- Montpellier Ressources Imagerie, Biocampus, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Leslie Bancel-Vallée
- Montpellier Ressources Imagerie, Biocampus, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Aurélien Dauphin
- Unite Genetique et Biologie du Développement U934, PICT-IBiSA, Institut Curie, INSERM, CNRS, PSL Research University, Paris, France
| | - Baptiste Monterroso
- Prism, Institut de Biologie Valrose, CNRS UMR 7277, INSERM 1091, University of Nice Sophia Antipolis - Parc Valrose, Nice, France
| | - Perrine Frère
- Plate-forme d'Imagerie de Tenon, UMR_S 1155, Hôpital Tenon, Paris, France
| | - David Geny
- Institut de Psychiatrie Et Neurosciences de Paris, INSERM U1266, Paris, France
| | - Tudor Manoliu
- Gustave Roussy, Université Paris-Saclay, Plate-forme Imagerie et Cytométrie, UMS AMMICa. Villejuif, France
| | - Sylvain de Rossi
- Montpellier Ressources Imagerie, Biocampus, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Fabrice P Cordelières
- University of Bordeaux, CNRS, INSERM, Bordeaux Imaging Center, UMS 3420, US 4, Bordeaux, France
| | - Damien Schapman
- Université of Rouen Normandie, INSERM, Plate-Forme de Recherche en Imagerie Cellulaire de Normandie, Rouen, France
| | - Roland Nitschke
- Life Imaging Center and Signalling Research Centres CIBSS and BIOSS, University Freiburg, Freiburg, Germany
| | - Julien Cau
- Montpellier Ressources Imagerie, Biocampus, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Thomas Guilbert
- Institut Cochin, INSERM (U1016), CNRS (UMR 8104), Universite de Paris (UMR-S1016), Paris, France
| |
Collapse
|
4
|
Mousseaux C, Migeon T, Frère P, Louedec L, Yousfi N, Galichon P, Hadchouel J. L’inhibition de L-WNK1 est protectrice dans un modèle murin de glomérulonéphrite extracapillaire. Nephrol Ther 2022. [DOI: 10.1016/j.nephro.2022.07.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
5
|
Mousseaux C, Migeon T, Frère P, Verpont MC, Lutete E, Navarro C, Louedec L, Hadchouel J. Heterozygous expression of Cre recombinase in podocytes has no impact on the anti-glomerular basement membrane glomerulonephritis model in C57BL/6J mice. Physiol Rep 2022; 10:e15443. [PMID: 36082952 PMCID: PMC9461343 DOI: 10.14814/phy2.15443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 07/30/2022] [Revised: 08/10/2022] [Accepted: 08/10/2022] [Indexed: 12/31/2022] Open
Abstract
A recent article described a thickening of the glomerular basement membrane (GBM) along with changes in the expression of key components of the extracellular matrix in 6-month-old NPHS2-Cre transgenic mice, which express the Cre recombinase specifically in podocytes. This transgenic line has been widely used to characterize the implication of candidate genes in glomerular diseases in younger mice. Using a different mouse strain (C57BL/6J) than the previous report (129S6/SvEvTac), we sought to characterize 3- and 6-month-old NPHS2-Cre+/- mice in control and pathological conditions. At baseline, there was no difference in renal function and histology between control and NPHS2-Cre+/- mice. Notably, GBM thickness evaluated by transmission electron microscopy was similar between the two groups. We then induced an immune-mediated severe glomerular insult, the anti-glomerular basement membrane glomerulonephritis model (anti-GBM-GN) in 3-month-old control and NPHS2-Cre+/- mice. NPHS2-Cre+/- mice exhibited the same alterations in renal function and structure as control mice. In summary, our study strongly suggests that NPHS2-Cre+/- transgenic mice on a C57BL/6J background can be safely used for podocyte-specific gene inactivation in control conditions and in the anti-GBM-GN model.
Collapse
Affiliation(s)
- Cyril Mousseaux
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche Scientifique 1155, Tenon Hospital, Paris, France.,Faculty of Medicine, Sorbonne University, Paris, France
| | - Tiffany Migeon
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche Scientifique 1155, Tenon Hospital, Paris, France.,Faculty of Medicine, Sorbonne University, Paris, France
| | - Perrine Frère
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche Scientifique 1155, Tenon Hospital, Paris, France.,Faculty of Medicine, Sorbonne University, Paris, France
| | - Marie Christine Verpont
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche Scientifique 1155, Tenon Hospital, Paris, France.,Faculty of Medicine, Sorbonne University, Paris, France
| | - Elisabeth Lutete
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche Scientifique 1155, Tenon Hospital, Paris, France.,Faculty of Medicine, Sorbonne University, Paris, France
| | - Claire Navarro
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche Scientifique 1155, Tenon Hospital, Paris, France.,Faculty of Medicine, Sorbonne University, Paris, France
| | - Liliane Louedec
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche Scientifique 1155, Tenon Hospital, Paris, France.,Faculty of Medicine, Sorbonne University, Paris, France
| | - Juliette Hadchouel
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche Scientifique 1155, Tenon Hospital, Paris, France.,Faculty of Medicine, Sorbonne University, Paris, France
| |
Collapse
|
6
|
Arnaud M, Loiselle M, Vaganay C, Pons S, Letavernier E, Demonchy J, Fodil S, Nouacer M, Placier S, Frère P, Arrii E, Lion J, Mooney N, Itzykson R, Djediat C, Puissant A, Zafrani L. Tumor Lysis Syndrome and AKI: Beyond Crystal Mechanisms. J Am Soc Nephrol 2022; 33:1154-1171. [PMID: 35523579 PMCID: PMC9161807 DOI: 10.1681/asn.2021070997] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 07/27/2021] [Accepted: 03/12/2022] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The pathophysiology of AKI during tumor lysis syndrome (TLS) is not well understood due to the paucity of data. We aimed to decipher crystal-dependent and crystal-independent mechanisms of TLS-induced AKI. METHODS Crystalluria, plasma cytokine levels, and extracellular histones levels were measured in two cohorts of patients with TLS. We developed a model of TLS in syngeneic mice with acute myeloid leukemia, and analyzed ultrastructural changes in kidneys and endothelial permeability using intravital confocal microscopy. In parallel, we studied the endothelial toxicity of extracellular histones in vitro. RESULTS: The study provides the first evidence that previously described crystal-dependent mechanisms are insufficient to explain TLS-induced AKI. Extracellular histones that are released in huge amounts during TLS caused profound endothelial alterations in the mouse model. The mechanisms of histone-mediated damage implicates endothelial cell activation mediated by Toll-like receptor 4. Heparin inhibits extracellular histones and mitigates endothelial dysfunction during TLS. CONCLUSION This study sheds new light on the pathophysiology of TLS-induced AKI and suggests that extracellular histones may constitute a novel target for therapeutic intervention in TLS when endothelial dysfunction occurs.
Collapse
Affiliation(s)
- Marine Arnaud
- Human Immunology and Immunopathology, Institut National de la Santé et de la Recherche Médicale (INSERM) U 976, University of Paris Cité, Paris, France
| | - Maud Loiselle
- Human Immunology and Immunopathology, Institut National de la Santé et de la Recherche Médicale (INSERM) U 976, University of Paris Cité, Paris, France
| | - Camille Vaganay
- INSERM UMR 944, Saint Louis Hospital, University of Paris Cité, Paris, France
| | - Stéphanie Pons
- Human Immunology and Immunopathology, Institut National de la Santé et de la Recherche Médicale (INSERM) U 976, University of Paris Cité, Paris, France
| | - Emmanuel Letavernier
- INSERM UMR S 1155, Sorbonne University, Paris, France,Multidisciplinary Functional Explorations Department, Assistance Publique des Hôpitaux de Paris, Tenon Hospital, Paris, France
| | - Jordane Demonchy
- Human Immunology and Immunopathology, Institut National de la Santé et de la Recherche Médicale (INSERM) U 976, University of Paris Cité, Paris, France
| | - Sofiane Fodil
- Human Immunology and Immunopathology, Institut National de la Santé et de la Recherche Médicale (INSERM) U 976, University of Paris Cité, Paris, France
| | - Manal Nouacer
- Human Immunology and Immunopathology, Institut National de la Santé et de la Recherche Médicale (INSERM) U 976, University of Paris Cité, Paris, France
| | | | - Perrine Frère
- INSERM UMR S 1155, Sorbonne University, Paris, France
| | - Eden Arrii
- Human Immunology and Immunopathology, Institut National de la Santé et de la Recherche Médicale (INSERM) U 976, University of Paris Cité, Paris, France
| | - Julien Lion
- Human Immunology and Immunopathology, Institut National de la Santé et de la Recherche Médicale (INSERM) U 976, University of Paris Cité, Paris, France
| | - Nuala Mooney
- Human Immunology and Immunopathology, Institut National de la Santé et de la Recherche Médicale (INSERM) U 976, University of Paris Cité, Paris, France
| | - Raphael Itzykson
- INSERM UMR 944, Saint Louis Hospital, University of Paris Cité, Paris, France,Department of Hematology, Assistance Publique des Hôpitaux de Paris, Saint Louis Hospital, Paris, France
| | - Chakib Djediat
- Electron Microscopy Department, UMR 7245, Museum National D’Histoire Naturelle, Paris, France
| | - Alexandre Puissant
- INSERM UMR 944, Saint Louis Hospital, University of Paris Cité, Paris, France
| | - Lara Zafrani
- Human Immunology and Immunopathology, Institut National de la Santé et de la Recherche Médicale (INSERM) U 976, University of Paris Cité, Paris, France .,Medical Intensive Care Unit, Assistance Publique des Hôpitaux de Paris, Saint Louis Hospital, Paris, France
| |
Collapse
|
7
|
Mydlova L, Taboukhat S, Waszkowska K, Ibrahim N, Migalska-Zalas A, Sahraoui B, Frère P, Makowska-Janusik M. Selected molecules based on (-1-cyanovinyl)benzonitrile as new materials for NLO applications — Experimental and computational studies. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113622] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
8
|
Rafael C, Soukaseum C, Baudrie V, Frère P, Hadchouel J. Consequences of SPAK inactivation on Hyperkalemic Hypertension caused by WNK1 mutations: evidence for differential roles of WNK1 and WNK4. Sci Rep 2018; 8:3249. [PMID: 29459793 PMCID: PMC5818654 DOI: 10.1038/s41598-018-21405-x] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 01/10/2018] [Indexed: 12/16/2022] Open
Abstract
Mutations of the gene encoding WNK1 [With No lysine (K) kinase 1] or WNK4 cause Familial Hyperkalemic Hypertension (FHHt). Previous studies have shown that the activation of SPAK (Ste20-related Proline/Alanine-rich Kinase) plays a dominant role in the development of FHHt caused by WNK4 mutations. The implication of SPAK in FHHt caused by WNK1 mutation has never been investigated. To clarify this issue, we crossed WNK1+/FHHt mice with SPAK knock-in mice in which the T-loop Thr243 residue was mutated to alanine to prevent activation by WNK kinases. We show that WNK1+/FHHT:SPAK243A/243A mice display an intermediate phenotype, between that of control and SPAK243A/243A mice, with normal blood pressure but hypochloremic metabolic alkalosis. NCC abundance and phosphorylation levels also decrease below the wild-type level in the double-mutant mice but remain higher than in SPAK243A/243A mice. This is different from what was observed in WNK4-FHHt mice in which SPAK inactivation completely restored the phenotype and NCC expression to wild-type levels. Although these results confirm that FHHt caused by WNK1 mutations is dependent on the activation of SPAK, they suggest that WNK1 and WNK4 play different roles in the distal nephron.
Collapse
Affiliation(s)
- Chloé Rafael
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unit 970, Paris Cardiovascular Research Center, Paris, France.,Universités Paris-Descartes et Paris-Diderot, Sorbonne Paris Cité, Paris, France.,Sorbonne Université, Paris, France.,INSERM UMR_S1155, Tenon Hospital, Paris, France
| | - Christelle Soukaseum
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unit 970, Paris Cardiovascular Research Center, Paris, France.,Universités Paris-Descartes et Paris-Diderot, Sorbonne Paris Cité, Paris, France.,INSERM UMR_S1176, CHU de Bicêtre, Le Kremlin-Bicêtre, France
| | - Véronique Baudrie
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unit 970, Paris Cardiovascular Research Center, Paris, France.,Universités Paris-Descartes et Paris-Diderot, Sorbonne Paris Cité, Paris, France.,Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
| | - Perrine Frère
- Sorbonne Université, Paris, France.,INSERM UMR_S1155, Tenon Hospital, Paris, France
| | - Juliette Hadchouel
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unit 970, Paris Cardiovascular Research Center, Paris, France. .,Universités Paris-Descartes et Paris-Diderot, Sorbonne Paris Cité, Paris, France. .,Sorbonne Université, Paris, France. .,INSERM UMR_S1155, Tenon Hospital, Paris, France.
| |
Collapse
|
9
|
Frère P, Benahmed-Gasmi A, Roncali J, Jubault M, Gorgues A. Électropolymérisation des bis-1,3-(1,4-dithiafulvène-6-yl)benzènes. ACTA ACUST UNITED AC 2017. [DOI: 10.1051/jcp/199592863] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
|
10
|
Luque Y, Louis K, Jouanneau C, Placier S, Esteve E, Bazin D, Rondeau E, Letavernier E, Wolfromm A, Gosset C, Boueilh A, Burbach M, Frère P, Verpont MC, Vandermeersch S, Langui D, Daudon M, Frochot V, Mesnard L. Vancomycin-Associated Cast Nephropathy. J Am Soc Nephrol 2017; 28:1723-1728. [PMID: 28082518 DOI: 10.1681/asn.2016080867] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 11/30/2016] [Indexed: 11/03/2022] Open
Abstract
Vancomycin is a widely prescribed antibiotic, but the exact nature of vancomycin-associated nephrotoxicity is unclear, in particular when considering the frequent coadministration of aminoglycosides. We describe here the initial case of a 56-year-old woman with normal renal function developing unexplained ARF without hypovolemia after administration of vancomycin without coadministration of aminoglycosides. Studying the patient's renal biopsy specimen, we ascertained that obstructive tubular casts composed of noncrystal nanospheric vancomycin aggregates entangled with uromodulin explained the vancomycin-associated ARF. We developed in parallel a new immunohistologic staining technique to detect vancomycin in renal tissue and confirmed retrospectively that deleterious vancomycin-associated casts existed in eight additional patients with acute tubular necrosis in the absence of hypovolemia. Concomitant high vancomycin trough plasma levels had been observed in each patient. We also reproduced experimentally the toxic and obstructive nature of vancomycin-associated cast nephropathy in mice, which we detected using different in vivo imaging techniques. In conclusion, the interaction of uromodulin with nanospheric vancomycin aggregates represents a new mode of tubular cast formation, revealing the hitherto unsuspected mechanism of vancomycin-associated renal injury.
Collapse
Affiliation(s)
- Yosu Luque
- Urgences Néphrologiques et Transplantation rénale, Hôpital Tenon, Assistance Publique - Hôpitaux de Paris, Paris, France.,Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche_S1155, Rare and Common Kidney Diseases, Matrix Remodeling and Tissue Repair, Paris, France.,Sorbonne Universités, Université Pierre et Marie Curie Univ Paris 6, Paris, France
| | - Kevin Louis
- Urgences Néphrologiques et Transplantation rénale, Hôpital Tenon, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Chantal Jouanneau
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche_S1155, Rare and Common Kidney Diseases, Matrix Remodeling and Tissue Repair, Paris, France
| | - Sandrine Placier
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche_S1155, Rare and Common Kidney Diseases, Matrix Remodeling and Tissue Repair, Paris, France
| | - Emmanuel Esteve
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche_S1155, Rare and Common Kidney Diseases, Matrix Remodeling and Tissue Repair, Paris, France
| | - Dominique Bazin
- Sorbonne Universités, Université Pierre et Marie Curie Univ Paris 6, Paris, France.,Laboratoire de chimie de la matière condensée de Paris, Collège de France, Centre régional de la Recherche Scientifique Unité Mixte de Recherche_7574, Laboratoire de physique des solides, université Paris XI, Paris, France
| | - Eric Rondeau
- Urgences Néphrologiques et Transplantation rénale, Hôpital Tenon, Assistance Publique - Hôpitaux de Paris, Paris, France.,Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche_S1155, Rare and Common Kidney Diseases, Matrix Remodeling and Tissue Repair, Paris, France.,Sorbonne Universités, Université Pierre et Marie Curie Univ Paris 6, Paris, France
| | - Emmanuel Letavernier
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche_S1155, Rare and Common Kidney Diseases, Matrix Remodeling and Tissue Repair, Paris, France.,Sorbonne Universités, Université Pierre et Marie Curie Univ Paris 6, Paris, France.,Explorations fonctionnelles multidisciplinaires, Hôpital Tenon, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Alice Wolfromm
- Hématologie Clinique Adulte, Hôpital Necker- Enfants malades, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Clément Gosset
- Anatomie pathologique, Hôpital Saint-Louis, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Anna Boueilh
- Néphrologie-Transplantation, Hôpital Saint-Louis, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Maren Burbach
- Néphrologie-Transplantation, Hôpital Saint-Louis, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Perrine Frère
- Imaging and Cytometry Facility of Tenon, Institut National de la Santé et de la Recherche Médicale Unité Mixte de Recherche_S1155, Rare and Common Kidney Diseases, Matrix Remodelling and Tissue Repair, Sorbonne Universités, Université Pierre et Marie Curie Univ Paris 6, Paris, France; and
| | - Marie-Christine Verpont
- Imaging and Cytometry Facility of Tenon, Institut National de la Santé et de la Recherche Médicale Unité Mixte de Recherche_S1155, Rare and Common Kidney Diseases, Matrix Remodelling and Tissue Repair, Sorbonne Universités, Université Pierre et Marie Curie Univ Paris 6, Paris, France; and
| | - Sophie Vandermeersch
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche_S1155, Rare and Common Kidney Diseases, Matrix Remodeling and Tissue Repair, Paris, France
| | - Dominique Langui
- Plateforme d'imagerie cellulaire Pitié-Salpêtrière, Institut National de la Santé et de la Recherche Médicale Unité Mixte de Recherche_S1127/Centre régional de la Recherche Scientifique Unité Mixte de Recherche_7225/Université Pierre et Marie Curie, Paris, France
| | - Michel Daudon
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche_S1155, Rare and Common Kidney Diseases, Matrix Remodeling and Tissue Repair, Paris, France.,Sorbonne Universités, Université Pierre et Marie Curie Univ Paris 6, Paris, France.,Explorations fonctionnelles multidisciplinaires, Hôpital Tenon, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Vincent Frochot
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche_S1155, Rare and Common Kidney Diseases, Matrix Remodeling and Tissue Repair, Paris, France.,Explorations fonctionnelles multidisciplinaires, Hôpital Tenon, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Laurent Mesnard
- Urgences Néphrologiques et Transplantation rénale, Hôpital Tenon, Assistance Publique - Hôpitaux de Paris, Paris, France; .,Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche_S1155, Rare and Common Kidney Diseases, Matrix Remodeling and Tissue Repair, Paris, France.,Sorbonne Universités, Université Pierre et Marie Curie Univ Paris 6, Paris, France
| |
Collapse
|
11
|
Luque Y, Lenoir O, Hardy L, Bonnin P, Frère P, Placier S, Schmitt A, Rondeau E, Mesnard L, Tharaux P. La délétion endothéliale du facteur de réponse à l’hypoxie HIF2α aggrave les lésions glomérulaires hypertensives expérimentales. Nephrol Ther 2016. [DOI: 10.1016/j.nephro.2016.07.274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
12
|
Luque Y, Lenoir O, Hardy L, Bonnin P, Frère P, Frère P, Placier S, Schmitt A, Rondeau E, Mesnard L, Tharaux PL. SP088ENDOTHELIAL HYPOXIA-INDUCIBLE FACTOR 2 ΑLPHA MEDIATES ENDOTHELIAL DYSFUNCTION AND GLOMERULAR LESIONS DURING HYPERTENSIVE NEPHROPATHY. Nephrol Dial Transplant 2016. [DOI: 10.1093/ndt/gfw158.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
13
|
Kulyk B, Kerasidou AP, Soumahoro L, Moussallem C, Gohier F, Frère P, Sahraoui B. Optimization and diagnostic of nonlinear optical features of π-conjugated benzodifuran-based derivatives. RSC Adv 2016. [DOI: 10.1039/c5ra25889h] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Optical and nonlinear optical properties of benzodifuran-based derivatives obtained by a green approach were studied.
Collapse
Affiliation(s)
- B. Kulyk
- Institute of Sciences and Molecular Technologies of Angers (MOLTECH Anjou)
- UMR CNRS 6200
- University of Angers
- 49045 Angers
- France
| | - A. P. Kerasidou
- Institute of Sciences and Molecular Technologies of Angers (MOLTECH Anjou)
- UMR CNRS 6200
- University of Angers
- 49045 Angers
- France
| | - L. Soumahoro
- Institute of Sciences and Molecular Technologies of Angers (MOLTECH Anjou)
- UMR CNRS 6200
- University of Angers
- 49045 Angers
- France
| | - C. Moussallem
- Institute of Sciences and Molecular Technologies of Angers (MOLTECH Anjou)
- UMR CNRS 6200
- University of Angers
- 49045 Angers
- France
| | - F. Gohier
- Institute of Sciences and Molecular Technologies of Angers (MOLTECH Anjou)
- UMR CNRS 6200
- University of Angers
- 49045 Angers
- France
| | - P. Frère
- Institute of Sciences and Molecular Technologies of Angers (MOLTECH Anjou)
- UMR CNRS 6200
- University of Angers
- 49045 Angers
- France
| | - B. Sahraoui
- Institute of Sciences and Molecular Technologies of Angers (MOLTECH Anjou)
- UMR CNRS 6200
- University of Angers
- 49045 Angers
- France
| |
Collapse
|
14
|
|
15
|
Courrier P, Dechmann L, Heinricy A, Flies D, Frère P. Causes de refus au don immédiat de sang : à propos de 500 cas. Transfus Clin Biol 2010. [DOI: 10.1016/j.tracli.2010.09.075] [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: 11/16/2022]
|
16
|
Willems E, Baron F, Seidel L, Frère P, Fillet G, Beguin Y. Comparison of thrombotic microangiopathy after allogeneic hematopoietic cell transplantation with high-dose or nonmyeloablative conditioning. Bone Marrow Transplant 2009; 45:689-93. [DOI: 10.1038/bmt.2009.230] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
17
|
Dugauquier C, Bataille Y, Willems E, Frère P, De Prijck B, Beguin Y, Baron F. [Cerebral toxoplasmosis complicating an allograft with hematopoietic stem cells from peripheral blood]. Rev Med Liege 2009; 64:366-369. [PMID: 19777912] [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] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We report the occurrence of a cerebral toxoplasmosis 52 days after a non-myeloablative allogeneic stem cell transplantation as treatment for acute myeloid leukemia.
Collapse
Affiliation(s)
- C Dugauquier
- Département de Médecine Générale, CHU de Liège, Belgique
| | | | | | | | | | | | | |
Collapse
|
18
|
De Pasqual A, Deprez M, Ghaye B, Frère P, Kaschten B, Hayette MP, Radermecker M, Martin D, Canivet JL. [Invasive pulmonary mucormycosis with invasion of the thoracic spine in a patient with myelodysplastic syndrome]. Rev Med Liege 2008; 63:702-706. [PMID: 19180827] [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] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report the case of a 67-year-old patient who presented with a myelodysplastic syndrome and who developed a pulmonary mucormycosis with a rare extension to the dorsal spine. A decompressive laminectomy was attempted after failure of broad-spectrum antifungal treatment (Cancidas, V-Fend). The diagnosis was obtained after surgical biopsy. The scheduled lobectomy could not be performed because of altered clinical condition. The patient eventually died despite adapted antifungal treatment (Abelcet, Posaconazole). Pulmonary mucormycosis is a rare cause of mycotic infection that reaches most of the time immunocompromised patients. The pathogenic agent is part of zygomyces that have angio-invasive ability. Perineural propagation was recently described. Immunodepression, late diagnosis and lack of response to new generation antifungal drugs (V-Fend, Cancidas) are responsible for therapeutic failure in this disease. This case emphasizes the risk inherent to empirical antifungal treatment and the need of early biopsy in cases that do not respond to treatment.
Collapse
|
19
|
Willems E, Baron F, Baudoux E, Wanten N, Seidel L, Vanbellinghen JF, Herens C, Gothot A, Frère P, Bonnet C, Hafraoui K, Vanstraelen G, Fillet G, Beguin Y. Non-myeloablative transplantation with CD8-depleted or unmanipulated peripheral blood stem cells: a phase II randomized trial. Leukemia 2008; 23:608-10. [DOI: 10.1038/leu.2008.248] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
20
|
Erouel M, Diallo K, Tardy J, Blanchard P, Roncali J, Frère P, Jaffrezic N. Stability and 2,4-dinitrotoluene response of organic field effect transistors based on π-conjugated thiophene oligomers. Materials Science and Engineering: C 2008. [DOI: 10.1016/j.msec.2007.10.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
21
|
Frère P, Baron F, Bonnet C, Hafraoui K, Pereira M, Willems E, Fillet G, Beguin Y. Infections after allogeneic hematopoietic stem cell transplantation with a nonmyeloablative conditioning regimen. Bone Marrow Transplant 2006; 37:411-8. [PMID: 16415900 DOI: 10.1038/sj.bmt.1705255] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Hematopoietic cell transplantation (HCT) following nonmyeloablative conditioning (NMSCT) may be associated with a reduced risk of infection compared to standard allogeneic HCT. We retrospectively analyzed incidence and risk factors of infection in 62 patients undergoing NMSCT with low-dose TBI +/- fludarabine and postgrafting CsA and MMF. The proportion of patients with any infection was 77%, but the majority of infectious events occurred beyond day 30. Donor other than sibling, older age, early disease and male gender were significant risk factors. The incidence of bacteremia was 55% at 1 year and the number of bacteremic episodes was 0.9 per patient (0.08 before day 30). The risk of bacteremia increased with older age and the use of a donor other than an HLA-identical sibling, but not with neutropenia. The incidence of infections other than bacteremia correlated with the use of corticosteroids. The risk of CMV infection increased with high-risk CMV serology, and risk of CMV disease with high-risk CMV serology, older age, first transplantation and a diagnosis of lymphoma. In conclusion, after NMSCT, infections are not frequent in the first 30 days post transplant but careful long-term monitoring is necessary thereafter.
Collapse
Affiliation(s)
- P Frère
- Department of Medicine, Division of Haematology, University of Liège, Liège, Belgium
| | | | | | | | | | | | | | | |
Collapse
|
22
|
Willems E, Baron F, Vanstraelen G, Frère P, Fillet G, Beguin Y. [Nonmyeloablative stem cell transplantation as cancer immunotherapy]. Rev Med Suisse 2005; 1:1973-7. [PMID: 16200942] [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] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Allogeneic hematopoietic stem cell transplantation (HSCT) is used for the treatment of selected haematological malignancies. Its curative potential is based on two different mechanisms, i.e. the conditioning regimen and the graft-versus-host immunologic reactions. However, because of its toxicity, it is restricted to younger and fitter patients. These observations led several groups to set up new (less toxic) transplant protocols. These transplants are called nonmyeloablative HSCT or minitransplants. These are feasible with a relatively low transplant-related mortality even in patients up to 70 years. In addition, strong anti-tumor responses are observed in several haematological malignancies.
Collapse
Affiliation(s)
- E Willems
- Université de Liège, Service d'hématologie, CHU Sart Tilman, 4000 Liège I, Belgique.
| | | | | | | | | | | |
Collapse
|
23
|
Frère P, Hermanne JP, Debouge MH, de Mol P, Fillet G, Beguin Y. Bacteremia after hematopoietic stem cell transplantation: incidence and predictive value of surveillance cultures. Bone Marrow Transplant 2004; 33:745-9. [PMID: 14743196 DOI: 10.1038/sj.bmt.1704414] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
UNLABELLED We studied 622 transplants undertaken between 1982 and 2001 to: (1) determine the incidence, timing and etiology of bacteremias, and (2) examine the ability of routine surveillance cultures to predict bacteremias. A total of 404 episodes (0.65 episode per patient) occurred in 248 patients, due to coagulase-negative staphylococci (n=171, 42%), Gram-negative bacteria (n=129, 32%), streptococci (n=48, 12%), other Gram-positive bacteria (n=33, 8%), anaerobes (n=9, 2%) and fungi (n=14, 3%). Bacteremias were more frequent in allogeneic (0.96 episode/patient) compared to autologous (0.44) transplants (P<0.0001). The overall incidence decreased from 0.92 episode/patient until 1990 to 0.66 in 1991-1996 and 0.55 in 1997-2001 (P<0.0001), but this was only observed in autologous transplants. Among them, 212 (53%) occurred before hospital discharge and 192 (47%) thereafter. This proportion was lower for coagulase-negative staphylococci, other Gram-positive bacteria and Gram-negative bacteria compared to other agents (P=0.001). In 50% of the cases, the agent responsible for the bacteremic episode was present in routine surveillance cultures previously. IN CONCLUSION (1) bacteremias remain a frequent complication, particularly in allogeneic transplantation, even long after hospital discharge; (2) routine surveillance cultures can predict bacteremias in 50% of the cases, but the practical impact of this observation is limited in view of the costs.
Collapse
Affiliation(s)
- P Frère
- Department of Medicine, Division of Haematology, University of Liège, Liège, Belgium
| | | | | | | | | | | |
Collapse
|
24
|
Baron F, Baudoux E, Frère P, Tourqui S, Schaaf-Lafontaine N, Herens C, DePrijck B, Fillet G, Beguin Y. Low T-cell chimerism is not followed by graft rejection after nonmyeloablative stem cell transplantation (NMSCT) with CD34-selected PBSC. Bone Marrow Transplant 2003; 32:829-34. [PMID: 14520430 DOI: 10.1038/sj.bmt.1704220] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [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: 11/09/2022]
Abstract
We investigate the feasibility of CD34-selected peripheral blood stem cell (PBSC) transplantation followed by pre-emptive CD8-depleted donor lymphocyte infusions (DLI) after a minimal conditioning regimen. Six patients with advanced hematological malignancies ineligible for a conventional myeloablative transplant (n=5) or metastatic renal cell carcinoma (n=1), and with an HLA-identical (n=4) or alternative (n=2) donor were included. The nonmyeloablative conditioning regimen consisted in 2 Gy TBI alone (n=4), 2 Gy TBI and fludarabine (RCC patient, n=1) or cyclophosphamide and fludarabine (patient who had previously received 12 Gy TBI, n=1). Post transplant immunosuppression was carried out with cyclosporin (CyA) and mycophenolate mofetil (MMF). Initial engraftment was achieved in all patients. One out of six patients (17%) experienced grade > or =2 acute GVHD only after abrupt cyclosporin discontinuation and alpha interferon therapy for life-threatening tumor progression. T-cell chimerism was 23% (19-30) on day 28, 32% (10-35) on day 100, 78% (49-95) on day 180 and 99.5% (99-100) on day 365. Three out of four patients who had measurable disease before the transplant experienced a complete response. We conclude that CD34-selected NMSCT followed by CD8-depleted DLI is feasible and preserves engraftment and apparently also the graft-versus-leukemia (GVL) effect. Further studies are needed to confirm this encouraging preliminary report.
Collapse
Affiliation(s)
- F Baron
- Department of Medicine, Division of Hematology, University of Liège, Liège, Belgium.
| | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Frère P, Hermanne JP, Debouge MH, Fillet G, Beguin Y. Changing pattern of bacterial susceptibility to antibiotics in hematopoietic stem cell transplant recipients. Bone Marrow Transplant 2002; 29:589-94. [PMID: 11979308 DOI: 10.1038/sj.bmt.1703413] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2001] [Accepted: 01/03/2002] [Indexed: 11/09/2022]
Abstract
UNLABELLED Adequate infection prophylaxis and empirical antibiotic therapy are of critical importance after hematopoietic stem cell transplantation (HSCT). We examined the evolution of bacterial susceptibility to antibiotics in 492 patients (198 allografts and 294 autografts) transplanted between 1982 and 1999 and evaluated whether ciprofloxacin prophylaxis and an empirical antibiotic regimen (glycopeptide + third-generation cephalosporin) were still valid. We collected all susceptibility tests performed during the initial hospitalization on blood cultures as well as routine surveillance cultures and analyzed susceptibility to ciprofloxacin and to major antibiotics used in our unit. Gram-positive cocci rapidly became resistant to ciprofloxacin (susceptibility around 70% in 1990 to less than 20% in 1998) but sensitivity to glycopeptides remained unaltered. There was a rapid decline in the number of patients colonized with Gram-negative bacilli in the early years of ciprofloxacin prophylaxis. However, susceptibility to ciprofloxacin fell sharply from around 90% in 1990 to around 30% in 1999. In parallel, susceptibility to ceftazidime also decreased to less than 80% in recent years. Piperacillin (+/- tazobactam) did not show any variation over time and its efficacy remained too low (about 60%). Imipenem as well as recently introduced cefepim and meropenem showed stable and excellent profiles (>90% susceptibility). IN CONCLUSION (1) quinolone prophylaxis has now lost most of its value; (2) the choice of a third-generation cephalosporin for empirical antibiotic therapy may no longer be the best because of the emergence of Gram-negative strains resistant to beta-lactamases, such as Enterobacter sp. More appropriate regimens of empirical antibiotic therapy in HSCT recipients may be based on the use of a carbapenem or fourth-generation cephalosporin.
Collapse
Affiliation(s)
- P Frère
- Department of Medicine, Division of Haematology, University of Liège, Liège, Belgium
| | | | | | | | | |
Collapse
|
26
|
Sahraoui B, Kityk IV, Fuks I, Paci B, Baldeck P, Nunzi JM, Frère P, Roncali J. Novel nonlinear optical organic materials: Dithienylethylenes. J Chem Phys 2001. [DOI: 10.1063/1.1398575] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
27
|
Baron F, Frère P, Fillet G, Beguin Y. Treatment of leukemia relapse after allogeneic hematopoietic stem cell transplantation by donor lymphocyte infusion and STI-571. Haematologica 2001; 86:993-4. [PMID: 11532632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023] Open
|
28
|
Nikkels AF, Frère P, Rakic L, Fassotte M, Evrard B, De Mol P, Piérard GE. Simultaneous reactivation of herpes simplex virus and varicella-zoster virus in a patient with idiopathic thrombocytopenic purpura. Dermatology 2000; 199:361-4. [PMID: 10640851 DOI: 10.1159/000018292] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Simultaneous reactivation of distinct Herpesviridae with development of clinical manifestations is exceptional. We report a 48-year-old woman suffering from idiopathic thrombocytopenic purpura. As the disease remained refractory to corticosteroids, immunoglobulins and splenectomy, a cure of vinblastine was administered. An atypical stomatitis developed few days later. Immunohistochemistry on a Tzanck smear and a biopsy evidenced a Herpes simplex virus type 1 (HSV-1) infection. The patient presented simultaneously a single necrotic lesion on the abdomen. Immunohistochemistry on a skin biopsy revealed the presence of the varicella-zoster virus (VZV) gE, gB and IE63 proteins. Intravenous aciclovir was initiated. The present case of simultaneous clinical infections by HSV-I and VZV underlines the importance of complementary viral identification testing in the event of unusual clinical presentations.
Collapse
Affiliation(s)
- A F Nikkels
- Department of Dermatopathology, University Medical Center of Liège, Belgium.
| | | | | | | | | | | | | |
Collapse
|
29
|
Krzeminski C, Delerue C, Allan G, Haguet V, Stiévenard D, Frère P, Levillain E, Roncali J. Theoretical characterization of the electronic properties of extended thienylenevinylene oligomers. J Chem Phys 1999. [DOI: 10.1063/1.480012] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
30
|
Franchimont D, Frère P, Lebrun F, Fassotte MF, D'Orio V. [Clinical case of the month. Moskowitz syndrome in a patient treated with ticlopidine]. Rev Med Liege 1996; 51:214-6. [PMID: 8668883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
31
|
Frère P, Gorgues A, Garín J, Orduna J. Proximity effects in mass spectrometry. Electron impact ionization-induced cyclization of 1,2-bis(1,4-dithiafulven-6-yl)benzenes. ACTA ACUST UNITED AC 1994. [DOI: 10.1002/oms.1210291011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
32
|
Benahmed-Gasmi A, Frère P, Garrigues B, Gorgues A, Jubault M, Carlier R, Texier F. 2,5-Bis(1,4-dithiafulven-6-yl) furans, thiophenes and N-methyl pyrroles as extended analogues of tetrathiafulvalene. Tetrahedron Lett 1992. [DOI: 10.1016/s0040-4039(00)79014-9] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
33
|
Schilf W, Frère P, Frère JM, Martin HH, Ghuysen JM, Adriaens P, Meesschaert B. Interaction between penicillin and the DD-carboxypeptidase of the unstable L-form of Proteus mirabilis strain 19. Eur J Biochem 1978; 85:325-30. [PMID: 348468 DOI: 10.1111/j.1432-1033.1978.tb12242.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Binding of penicillin to the DD-carboxypeptidase of the unstable spheroplast L-form of Proteus mirabilis results in the rapid formation of a modified enzyme-inhibitor complex which in turn undergoes rapid decay into reactivated enzyme and an antibiotically inactive penicillin degradation product. Major antibiotic metabolites recovered from such interactions were benzylpenicilloic acid and phenoxymethylpenicilloic acid from benzylpenicillin and phenoxymethylpenicillin, respectively, suggesting a second enzymic function of the DD-carboxypeptidase as a penicillinase of low efficiency. Statistical analyses made with the help of a linear regression program show that the enzyme interacts with the substrate UDP-N-acetylmuramoyl-L-alanyl-D-gamma-glutamyl-(L)-meso-2,6-diaminopimelyl-(L)-D-alanyl-D-alanine and either benzympenicillin or carbenicillin in a non-competitive manner.
Collapse
|