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Martin C, Evrard B, Percevault F, Ryder K, Darde T, Lardenois A, Zhadobov M, Sauleau R, Chalmel F, Le Dréan Y, Habauzit D. Transcriptional landscape of human keratinocyte models exposed to 60-GHz millimeter-waves. Toxicol In Vitro 2024; 97:105808. [PMID: 38484921 DOI: 10.1016/j.tiv.2024.105808] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 03/05/2024] [Accepted: 03/09/2024] [Indexed: 03/19/2024]
Abstract
The use of millimeter waves (MMW) will exponentially grow in the coming years due to their future utilization in 5G/6G networks. The question of possible biological effects at these frequencies has been raised. In this present study, we aimed to investigate gene expression changes under exposure to MMW using the Bulk RNA Barcoding and sequencing (BRB-seq) technology. To address this issue, three exposure scenarios were performed aiming at: i) comparing the cellular response of two primary culture of keratinocytes (HEK and NHEK) and one keratinocyte derivate cell line (HaCaT) exposed to MMW; ii) exploring the incident power density dose-effect on gene expression in HaCaT cell line; and, iii) studying the exposure duration at the new ICNIRP exposure limit for the general population. With the exception of heat effect induced by high power MMW (over 10 mW/cm2), those exposure scenarios have not enabled us to demonstrate important gene expression changes in the different cell populations studied. Very few differentially genes were observed between MMW exposed samples and heat shock control, and most of them were significantly associated with heat shock response that may reflect small differences in the heat generation. Together these results show that acute exposure to MMW has no effects on the transcriptional landscape of human keratinocyte models under athermal conditions.
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Affiliation(s)
- Catherine Martin
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Bertrand Evrard
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Frédéric Percevault
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Kate Ryder
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Thomas Darde
- SciLicium, 10 rue de la Sauvaie, 35200 Rennes, France
| | - Aurélie Lardenois
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Maxim Zhadobov
- Univ Rennes, CNRS, IETR (Institut d'Électronique et des Technologies du Numérique), UMR 6164, F-35000 Rennes, France
| | - Ronan Sauleau
- Univ Rennes, CNRS, IETR (Institut d'Électronique et des Technologies du Numérique), UMR 6164, F-35000 Rennes, France
| | - Frédéric Chalmel
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Yves Le Dréan
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Denis Habauzit
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France; ANSES (French Agency for Food, Environmental and Occupational Health & Safety), Toxicology of Contaminants Unit, Fougères, France.
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Ramhøj L, Svingen T, Evrard B, Chalmel F, Axelstad M. Two thyroperoxidase-inhibiting chemicals induce shared transcriptional changes in hippocampus of developing rats. Toxicology 2024; 505:153822. [PMID: 38685447 DOI: 10.1016/j.tox.2024.153822] [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: 03/22/2024] [Revised: 04/25/2024] [Accepted: 04/26/2024] [Indexed: 05/02/2024]
Abstract
Thyroid hormone (TH) system disrupting compounds can impair brain development by perturbing TH action during critical life stages. Human exposure to TH system disrupting chemicals is therefore of great concern. To better protect humans against such chemicals, sensitive test methods that can detect effects on the developing brain are critical. Worryingly, however, current test methods are not sensitive and specific towards TH-mediated effects. To address this shortcoming, we performed RNA-sequencing of rat brains developmentally exposed to two different thyroperoxidase (TPO) inhibiting compounds, the medical drug methimazole (MMI) or the pesticide amitrole. Pregnant and lactating rats were exposed to 8 and 16 mg/kg/day(d) MMI or 25 and 50 mg/kg/d amitrole from gestational day 7 until postnatal day 16. Bulk-RNA-seq was performed on hippocampus from the 16-day old male pups. MMI and amitrole caused pronounced changes to the transcriptomes; 816 genes were differentially expressed, and 425 gene transcripts were similarly affected by both chemicals. Functional terms indicate effects from key cellular functions to changes in cell development, migration and differentiation of several cell populations. Of the total number of DEGs, 106 appeared to form a consistent transcriptional fingerprint of developmental hypothyroidism as they were similarly and dose-dependently expressed across all treatment groups. Using a filtering system, we identified 20 genes that appeared to represent the most sensitive, robust and dose-dependent markers of altered TH-mediated brain development. These markers provide inputs to the adverse outcome pathway (AOP) framework where they, in the context of linking TPO inhibiting compounds to adverse cognitive function, can be used to assess altered gene expression in the hippocampus in rat toxicity studies.
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Affiliation(s)
- Louise Ramhøj
- National Food Institute, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark.
| | - Terje Svingen
- National Food Institute, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark
| | - Bertrand Evrard
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, Rennes, F-35000, France
| | - Frédéric Chalmel
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, Rennes, F-35000, France
| | - Marta Axelstad
- National Food Institute, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark
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Koch N, Jennotte O, Bourcy Q, Lechanteur A, Deville M, Charlier C, Chiap P, Cardot JM, Evrard B. Evaluation of amorphous and lipid-based formulation strategies to increase the in vivo cannabidiol bioavailability in piglets. Int J Pharm 2024; 657:124173. [PMID: 38685441 DOI: 10.1016/j.ijpharm.2024.124173] [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: 02/22/2024] [Revised: 04/22/2024] [Accepted: 04/26/2024] [Indexed: 05/02/2024]
Abstract
Cannabidiol (CBD) suffers from poor oral bioavailability due to poor aqueous solubility and high metabolism, and is generally administered in liquid lipid vehicles. Solid-state formulations of CBD have been developed, but their ability to increase the oral bioavailability has not yet been proven in vivo. Various approaches are investigated to increase this bioavailability. This study aimed to demonstrate the enhancement of the oral bioavailability of oral solid dosage forms of amorphous CBD and lipid-based CBD formulation compared to crystalline CBD. Six piglets received the three formulations, in a cross-over design. CBD and 7 - COOH - CBD, a secondary metabolite used as an indicator of hepatic degradation, were analyzed in plasma. A 10.9-fold and 6.8-fold increase in oral bioavailability was observed for the amorphous and lipid formulations, respectively. However, the lipid-based formulation allowed reducing the inter-variability when administered to fasted animals. An entero-hepatic cycle was confirmed for amorphous formulations. Finally, this study showed that the expected protective effect of lipids against hepatic degradation of the lipid-based formulation did not occur, since the ratio CBD/metabolite was higher than that of the amorphous one.
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Affiliation(s)
- N Koch
- University of Liège, Laboratory of Pharmaceutical Technology and Biopharmacy, Center for Interdisciplinary Research on Medicines (CIRM), Liège 4000, Belgium.
| | - O Jennotte
- University of Liège, Laboratory of Pharmaceutical Technology and Biopharmacy, Center for Interdisciplinary Research on Medicines (CIRM), Liège 4000, Belgium
| | - Q Bourcy
- University of Liège, Laboratory of Pharmaceutical Technology and Biopharmacy, Center for Interdisciplinary Research on Medicines (CIRM), Liège 4000, Belgium
| | - A Lechanteur
- University of Liège, Laboratory of Pharmaceutical Technology and Biopharmacy, Center for Interdisciplinary Research on Medicines (CIRM), Liège 4000, Belgium
| | - M Deville
- Academic Hospital of Liège, Department of Toxicology, GLP-AEPT Unit, Center for Interdisciplinary Research on Medicines (CIRM), Liège 4000, Belgium
| | - C Charlier
- Academic Hospital of Liège, Department of Toxicology, GLP-AEPT Unit, Center for Interdisciplinary Research on Medicines (CIRM), Liège 4000, Belgium
| | - P Chiap
- Academic Hospital of Liège, Department of Toxicology, GLP-AEPT Unit, Center for Interdisciplinary Research on Medicines (CIRM), Liège 4000, Belgium
| | | | - B Evrard
- University of Liège, Laboratory of Pharmaceutical Technology and Biopharmacy, Center for Interdisciplinary Research on Medicines (CIRM), Liège 4000, Belgium
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Chaze M, Mériade L, Rochette C, Bailly M, Bingula R, Blavignac C, Duclos M, Evrard B, Fournier AC, Pelissier L, Thivel D. Relying on the French territorial offer of thermal spa therapies to build a care pathway for long COVID-19 patients. PLoS One 2024; 19:e0302392. [PMID: 38640090 PMCID: PMC11029631 DOI: 10.1371/journal.pone.0302392] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 03/26/2024] [Indexed: 04/21/2024] Open
Abstract
BACKGROUND Work on long COVID-19 has mainly focused on clinical care in hospitals. Thermal spa therapies represent a therapeutic offer outside of health care institutions that are nationally or even internationally attractive. Unlike local care (hospital care, general medicine, para-medical care), their integration in the care pathways of long COVID-19 patients seems little studied. The aim of this article is to determine what place french thermal spa therapies can take in the care pathway of long COVID-19 patients. METHODS Based on the case of France, we carry out a geographic mapping analysis of the potential care pathways for long COVID-19 patients by cross-referencing, over the period 2020-2022, the available official data on COVID-19 contamination, hospitalisations in intensive care units and the national offer of spa treatments. This first analysis allows us, by using the method for evaluating the attractiveness of an area defined by David Huff, to evaluate the accessibility of each French department to thermal spas. RESULTS Using dynamic geographical mapping, this study describes two essential criteria for the integration of the thermal spa therapies offer in the care pathways of long COVID-19 patients (attractiveness of spa areas and accessibility to thermal spas) and three fundamental elements for the success of these pathways (continuity of the care pathways; clinical collaborations; adaptation of the financing modalities to each patient). Using a spatial attractiveness method, we make this type of geographical analysis more dynamic by showing the extent to which a thermal spa is accessible to long COVID-19 patients. CONCLUSION Based on the example of the French spa offer, this study makes it possible to place the care pathways of long COVID-19 patients in a wider area (at least national), rather than limiting them to clinical and local management in a hospital setting. The identification and operationalization of two geographical criteria for integrating a type of treatment such as a spa cure into a care pathway contributes to a finer conceptualization of the construction of healthcare pathways.
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Affiliation(s)
- Milhan Chaze
- University of Clermont Auvergne, “Santé et Territoires” Resarch Chair, CleRMa, Clermont-Ferrand, France
| | - Laurent Mériade
- University of Clermont Auvergne, “Santé et Territoires” Resarch Chair, CleRMa, Clermont-Ferrand, France
| | - Corinne Rochette
- University of Clermont Auvergne, “Santé et Territoires” Resarch Chair, CleRMa, Clermont-Ferrand, France
| | - Mélina Bailly
- University of Clermont Auvergne, CRNH, AME2P, Clermont-Ferrand, France
| | - Rea Bingula
- CHU Clermont-Ferrand, Service d’Immunologie, CHU Gabriel-Montpied, Clermont-Ferrand, France
- University of Clermont Auvergne, INRA, UMR 1019, Clermont-Ferrand, France
| | - Christelle Blavignac
- Centre Imagerie Cellulaire Santé, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Martine Duclos
- University of Clermont Auvergne, INRA, UMR 1019, Clermont-Ferrand, France
- Service de Médecine du Sport et des Explorations Fonctionnelles, CHU de Clermont-Ferrand, Université Clermont Auvergne, INRA, UNH, Unité de Nutrition Humaine, CRNH Auvergne, Clermont-Ferrand, France
| | - Bertrand Evrard
- CHU Clermont-Ferrand, Service d’Immunologie, CHU Gabriel-Montpied, Clermont-Ferrand, France
- University of Clermont Auvergne, INRA, UMR 1019, Clermont-Ferrand, France
| | | | - Lena Pelissier
- University of Clermont Auvergne, CRNH, AME2P, Clermont-Ferrand, France
| | - David Thivel
- University of Clermont Auvergne, CRNH, AME2P, Clermont-Ferrand, France
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Uto T, Evrard B, Watanabe K, Taniguchi T, Kroner M, İmamoğlu A. Interaction-Induced ac Stark Shift of Exciton-Polaron Resonances. Phys Rev Lett 2024; 132:056901. [PMID: 38364159 DOI: 10.1103/physrevlett.132.056901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 12/20/2023] [Accepted: 01/04/2024] [Indexed: 02/18/2024]
Abstract
Laser-induced shift of atomic states due to the ac Stark effect has played a central role in cold-atom physics and facilitated their emergence as analog quantum simulators. Here, we explore this phenomenon in an atomically thin layer of semiconductor MoSe_{2}, which we embedded in a heterostructure enabling charge tunability. Shining an intense pump laser with a small detuning from the material resonances, we generate a large population of virtual collective excitations and achieve a regime where interactions with this background population are the leading contribution to the ac Stark shift. Using this technique we study how itinerant charges modify-and dramatically enhance-the interactions between optical excitations. In particular, our experiments show that the interaction between attractive polarons could be more than an order of magnitude stronger than those between bare excitons.
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Affiliation(s)
- T Uto
- Institute for Quantum Electronics, ETH Zürich, CH-8093 Zürich, Switzerland
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
| | - B Evrard
- Institute for Quantum Electronics, ETH Zürich, CH-8093 Zürich, Switzerland
| | - K Watanabe
- Research Center for Electronic and Optical Materials, NIMS, 1-1 Namiki, Tsukuba 305-0044, Japan
| | - T Taniguchi
- Research Center for Electronic and Optical Materials, NIMS, 1-1 Namiki, Tsukuba 305-0044, Japan
| | - M Kroner
- Institute for Quantum Electronics, ETH Zürich, CH-8093 Zürich, Switzerland
| | - A İmamoğlu
- Institute for Quantum Electronics, ETH Zürich, CH-8093 Zürich, Switzerland
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Neyroud AS, Rolland AD, Lecuyer G, Evrard B, Alary N, Dejucq-Rainsford N, Bujan L, Ravel C, Chalmel F. Sperm DNA methylation dynamics after chemotherapy: a longitudinal study of a patient with testicular germ cell tumor treatment. Andrology 2024; 12:396-409. [PMID: 37354024 DOI: 10.1111/andr.13485] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 05/26/2023] [Accepted: 06/19/2023] [Indexed: 06/25/2023]
Abstract
BACKGROUND An important issue for young men affected by testicular germ cell tumor (TGCT) is how TGCT and its treatment will affect, transiently or permanently, their future reproductive health. Previous studies have reported that xenobiotics can induce changes on human sperm epigenome and have the potential to promote epigenetic alterations in the offspring. OBJECTIVES Here, we report the first longitudinal DNA methylation profiling of frozen sperm from a TGCT patient before and up to 2 years after a bleomycin, etoposide, and cisplatin (BEP) chemotherapy. MATERIALS AND METHODS A TGCT was diagnosed in a 30-year-old patient. A cryopreservation of spermatozoa was proposed before adjuvant BEP treatment. Semen samples were collected before and after chemotherapy at 6, 9, 12, and 24 months. The DNA methylation status was determined by RRBS to detect DNA differentially methylated regions (DMRs). RESULTS The analysis revealed that among the 74 DMRs showing modified methylation status 6 months after therapy, 17 remained altered 24 months after treatment. We next associated DMRs with differentially methylated genes (DMGs), which were subsequently intersected with loci known to be important or expressed during early development. DISCUSSION AND CONCLUSION The consequences of the cancer treatment on the sperm epigenome during the recovery periods are topical issues of increasing significance as epigenetic modifications to the paternal genome may have deleterious effects on the offspring. The altered methylated status of these DMGs important for early development might modify their expression pattern and thus affect their function during key stages of embryogenesis, potentially leading to developmental disorders or miscarriages.
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Affiliation(s)
- Anne-Sophie Neyroud
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
- CHU de Rennes, Département de Gynécologie Obstétrique Reproduction-CECOS, Rennes, France
| | - Antoine Dominique Rolland
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Gwendoline Lecuyer
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Bertrand Evrard
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Nathan Alary
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Nathalie Dejucq-Rainsford
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Louis Bujan
- Développement Embryonnaire, Fertilité, Environnement (DEFE), UMR Inserm 1203 Université Toulouse 3 et Montpellier, Toulouse, France
- CECOS, Groupe d'activité de médecine de la reproduction, Hôpital Paule de Viguier, CHU Toulouse, Toulouse, France
| | - Célia Ravel
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
- CHU de Rennes, Département de Gynécologie Obstétrique Reproduction-CECOS, Rennes, France
| | - Frédéric Chalmel
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
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Grapin K, De Bauchene R, Bonnet B, Mirand A, Cassagnes L, Calvet L, Thouy F, Bouzgarrou R, Henquell C, Evrard B, Adda M, Souweine B, Dupuis C. Severe Acute Respiratory Syndrome Coronavirus 2 Pneumonia in Critically Ill Patients: A Cluster Analysis According to Baseline Characteristics, Biological Features, and Chest CT Scan on Admission. Crit Care Med 2024; 52:e38-e46. [PMID: 37889095 DOI: 10.1097/ccm.0000000000006105] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
BACKGROUND Inconsistent results from COVID-19 studies raise the issue of patient heterogeneity. OBJECTIVE The objective of this study was to identify homogeneous subgroups of patients (clusters) using baseline characteristics including inflammatory biomarkers and the extent of lung parenchymal lesions on CT, and to compare their outcomes. DESIGN Retrospective single-center study. SETTING Medical ICU of the University Hospital of Clermont-Ferrand, France. PATIENTS All consecutive adult patients aged greater than or equal to 18 years, admitted between March 20, 2020, and August 31, 2021, for COVID-19 pneumonia. INTERVENTIONS Characteristics at baseline, during ICU stay, and outcomes at day 60 were recorded. On the chest CT performed at admission the extent of lung parenchyma lesions was established by artificial intelligence software. MEASUREMENTS AND MAIN RESULTS Clusters were determined by hierarchical clustering on principal components using principal component analysis of admission characteristics including plasma interleukin-6, human histocompatibility leukocyte antigen-DR expression rate on blood monocytes (HLA-DR) monocytic-expression rate (mHLA-DR), and the extent of lung parenchymal lesions. Factors associated with day 60 mortality were investigated by univariate survival analysis. Two hundred seventy patients were included. Four clusters were identified and three were fully described. Cluster 1 (obese patients, with moderate hypoxemia, moderate extent of lung parenchymal lesions, no inflammation, and no down-regulation of mHLA-DR) had a better prognosis at day 60 (hazard ratio [HR] = 0.27 [0.15-0.46], p < 0.01), whereas cluster 2 (older patients with comorbidities, moderate extent of lung parenchyma lesions but significant hypoxemia, inflammation, and down-regulation of mHLA-DR) and cluster 3 (patients with severe parenchymal disease, hypoxemia, inflammatory reaction, and down-regulation of mHLA-DR) had an increased risk of mortality (HR = 2.07 [1.37-3.13], p < 0.01 and HR = 1.52 [1-2.32], p = 0.05, respectively). In multivariate analysis, only clusters 1 and 2 were independently associated with day 60 death. CONCLUSIONS Three clusters with distinct characteristics and outcomes were identified. Such clusters could facilitate the identification of targeted populations for the next trials.
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Affiliation(s)
- Kévin Grapin
- CHU Clermont-Ferrand, Service de Médecine intensive et réanimation, Clermont-Ferrand, France
| | | | - Benjamin Bonnet
- CHU Clermont-Ferrand, Service d'Immunologie, Clermont-Ferrand, France
- Université Clermont Auvergne, Laboratoire d'Immunologie, ECREIN, UMR1019, UNH, UFR Médecine de Clermont-Ferrand, Clermont-Ferrand, France
| | - Audrey Mirand
- CHU Clermont-Ferrand, 3IHP, Service de virologie, Clermont-Ferrand, France
- Université Clermont Auvergne, UMR CNRS 6023, LMGE, Clermont-Ferrand, France
| | - Lucie Cassagnes
- CHU Clermont-Ferrand, Service de Radiologie, Clermont-Ferrand, France
- Université Clermont Auvergne, ASMS, UMR 1019, UNH, INRAe, CRNH Auvergne, Clermont-Ferrand, France
| | - Laure Calvet
- CHU Clermont-Ferrand, Service de Médecine intensive et réanimation, Clermont-Ferrand, France
| | - François Thouy
- CHU Clermont-Ferrand, Service de Médecine intensive et réanimation, Clermont-Ferrand, France
| | - Radhia Bouzgarrou
- CHU Clermont-Ferrand, Service de Médecine intensive et réanimation, Clermont-Ferrand, France
| | - Cécile Henquell
- CHU Clermont-Ferrand, 3IHP, Service de virologie, Clermont-Ferrand, France
- Université Clermont Auvergne, UMR CNRS 6023, LMGE, Clermont-Ferrand, France
| | - Bertrand Evrard
- CHU Clermont-Ferrand, Service d'Immunologie, Clermont-Ferrand, France
- Université Clermont Auvergne, Laboratoire d'Immunologie, ECREIN, UMR1019, UNH, UFR Médecine de Clermont-Ferrand, Clermont-Ferrand, France
| | - Mireille Adda
- CHU Clermont-Ferrand, Service de Médecine intensive et réanimation, Clermont-Ferrand, France
| | - Bertrand Souweine
- CHU Clermont-Ferrand, Service de Médecine intensive et réanimation, Clermont-Ferrand, France
- Université Clermont Auvergne, UMR CNRS 6023, LMGE, Clermont-Ferrand, France
| | - Claire Dupuis
- CHU Clermont-Ferrand, Service de Médecine intensive et réanimation, Clermont-Ferrand, France
- Université Clermont Auvergne, ASMS, UMR 1019, UNH, INRAe, CRNH Auvergne, Clermont-Ferrand, France
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Evrard B, Pizzi A, Mistakidis SI, Dag CB. Quantum Scars and Regular Eigenstates in a Chaotic Spinor Condensate. Phys Rev Lett 2024; 132:020401. [PMID: 38277581 DOI: 10.1103/physrevlett.132.020401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 11/28/2023] [Indexed: 01/28/2024]
Abstract
Quantum many-body scars consist of a few low-entropy eigenstates in an otherwise chaotic many-body spectrum, and can weakly break ergodicity resulting in robust oscillatory dynamics. The notion of quantum many-body scars follows the original single-particle scars introduced within the context of quantum billiards, where scarring manifests in the form of a quantum eigenstate concentrating around an underlying classical unstable periodic orbit. A direct connection between these notions remains an outstanding problem. Here, we study a many-body spinor condensate that, owing to its collective interactions, is amenable to the diagnostics of scars. We characterize the system's rich dynamics, spectrum, and phase space, consisting of both regular and chaotic states. The former are low in entropy, violate the eigenstate thermalization hypothesis, and can be traced back to integrable effective Hamiltonians, whereas most of the latter are scarred by the underlying semiclassical unstable periodic orbits, while satisfying the eigenstate thermalization hypothesis. We outline an experimental proposal to probe our theory in trapped spin-1 Bose-Einstein condensates.
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Affiliation(s)
- Bertrand Evrard
- Institute for Quantum Electronics, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Andrea Pizzi
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - Simeon I Mistakidis
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
- ITAMP, Center for Astrophysics, Harvard and Smithsonian, Cambridge, Massachusetts 02138, USA
| | - Ceren B Dag
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
- ITAMP, Center for Astrophysics, Harvard and Smithsonian, Cambridge, Massachusetts 02138, USA
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Bingula R, Chabrolles H, Bonnet B, Archimbaud C, Brebion A, Cosme J, Ollier A, Dutheil F, Junda M, Mirand A, Regagnon C, Vidal M, Henquell C, Evrard B. Increase over time of antibody levels 3 months after a booster dose as an indication of better protection against Omicron infection. Emerg Microbes Infect 2023; 12:2184176. [PMID: 36848040 PMCID: PMC10013501 DOI: 10.1080/22221751.2023.2184176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
The third, "booster", vaccination increases the overall immune response against SARS-CoV-2 variants. However, after the initial peak at around 3 weeks post-vaccination, anti-spike antibody levels decline. Post-booster kinetics of cellular response has been less investigated and there is no documented evidence of a true boosting effect. Furthermore, multiple studies underline the less effective immune responses against Omicron, the latest variant of concern, at both humoral and cellular levels. In this letter, we analyse humoral (anti-RBD IgG levels) and cellular (IFN-γ release assay) immune response in 205 health care workers 3 weeks and 3 months after administration of an mRNA-based booster dose, either mRNA-1273 or BNT162b2. Since all subjects were SARS-CoV-2 infection-naïve, we also looked at the incidence of Omicron infection between 3 and 6 months post-booster.At both timepoints, 3x mRNA-1273 vaccination had the highest overall antibody and IFN-γ levels, followed by 3x BNT162b2 vaccination and heterologous mRNA-based regimens. Heterologous ChAdOx1-mRNA-based regimen had the lowest antibody levels while cellular response equal to that of 3x BNT162b2 vaccination and heterologous mRNA-based regimens. Our results show that both humoral and cellular responses waned at 3 months for all vaccination regimens. However, we identified three trajectories of dosage variation. Interestingly, the subgroup of subjects with increasing anti-RBD IgG levels over time had a lower incidence of Omicron infection. Whether increasing humoral response at 3 months post-booster is more indicative of protection than a high initial peak remains to be confirmed in a larger cohort.
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Affiliation(s)
- Rea Bingula
- UMR UNH, ECREIN, Immunology Laboratory, Faculty of Medicine, Clermont Auvergne University, Clermont-Ferrand, France
| | - Hélène Chabrolles
- Virology Department, Clermont-Ferrand University Hospital (CHU Clermont-Ferrand), 3IHP, Clermont-Ferrand, France.,CNRS UMR 6023, LMGE, Clermont Auvergne University, Clermont-Ferrand, France
| | - Benjamin Bonnet
- UMR UNH, ECREIN, Immunology Laboratory, Faculty of Medicine, Clermont Auvergne University, Clermont-Ferrand, France.,Immunology Department, Clermont-Ferrand University Hospital (CHU Clermont Ferrand), Clermont-Ferrand, France
| | - Christine Archimbaud
- Virology Department, Clermont-Ferrand University Hospital (CHU Clermont-Ferrand), 3IHP, Clermont-Ferrand, France.,CNRS UMR 6023, LMGE, Clermont Auvergne University, Clermont-Ferrand, France
| | - Amélie Brebion
- Virology Department, Clermont-Ferrand University Hospital (CHU Clermont-Ferrand), 3IHP, Clermont-Ferrand, France
| | - Justine Cosme
- Immunology Department, Clermont-Ferrand University Hospital (CHU Clermont Ferrand), Clermont-Ferrand, France
| | - Amandine Ollier
- Clinical Research and Innovation Direction, Clermont-Ferrand University Hospital (CHU Clermont-Ferrand) 3 IHP, Clermont-Ferrand, France
| | - Frédéric Dutheil
- Preventive and Occupational Medicine, Clermont-Ferrand University Hospital (CHU Clermont-Ferrand), Clermont-Ferrand, France.,CNRS, LaPSCo Physiological and Psychosocial Stress, Clermont Auvergne University, Clermont-Ferrand, France
| | - Maud Junda
- Immunology Department, Clermont-Ferrand University Hospital (CHU Clermont Ferrand), Clermont-Ferrand, France
| | - Audrey Mirand
- Virology Department, Clermont-Ferrand University Hospital (CHU Clermont-Ferrand), 3IHP, Clermont-Ferrand, France.,CNRS UMR 6023, LMGE, Clermont Auvergne University, Clermont-Ferrand, France
| | - Christel Regagnon
- Virology Department, Clermont-Ferrand University Hospital (CHU Clermont-Ferrand), 3IHP, Clermont-Ferrand, France.,CNRS UMR 6023, LMGE, Clermont Auvergne University, Clermont-Ferrand, France
| | - Magali Vidal
- Virology Department, Clermont-Ferrand University Hospital (CHU Clermont-Ferrand), 3IHP, Clermont-Ferrand, France.,CNRS UMR 6023, LMGE, Clermont Auvergne University, Clermont-Ferrand, France
| | - Cécile Henquell
- Virology Department, Clermont-Ferrand University Hospital (CHU Clermont-Ferrand), 3IHP, Clermont-Ferrand, France.,CNRS UMR 6023, LMGE, Clermont Auvergne University, Clermont-Ferrand, France
| | - Bertrand Evrard
- UMR UNH, ECREIN, Immunology Laboratory, Faculty of Medicine, Clermont Auvergne University, Clermont-Ferrand, France.,Immunology Department, Clermont-Ferrand University Hospital (CHU Clermont Ferrand), Clermont-Ferrand, France
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10
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Saroul N, Loukine M, Durand M, Pereira B, Rozand I, Becaud J, Martinez Q, Mom T, Gilain L, Evrard B, Puechmaille M, Bonnet B. Early detection of pharyngocutaneous fistulae after total laryngectomy by cytokine in drainage: A pilot study (DEFILAC). Head Neck 2023; 45:3067-3074. [PMID: 37815200 DOI: 10.1002/hed.27535] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 09/15/2023] [Accepted: 09/23/2023] [Indexed: 10/11/2023] Open
Abstract
BACKGROUND The determination of cytokines in the postoperative drainage (POD) fluid could be a method for early detection of the development of a pharyngocutaneous fistula (PCF). MATERIALS AND METHODS We conducted a prospective two-center study involving 28 patients. PODs were collected on Day 1 (D1) and Day 2 (D2) postoperatively for determination of a cytokine panel and cytobacteriological examination. RESULTS Eleven (39%) patients presented with PCF on average 13 ± 5.5 days after surgery. Patients with PCF had higher IL-10 (121 vs. 40.3, p = 0.04, effect size (ES) = 0.98 [0.16, 1.79]) and TNFα level (21.2 vs. 2.2, p = 0.02, ES = 0.83 [0.03, 1.63]) on D2. An IL-10 threshold of 72 pg/mL on D2 was diagnostic of the occurrence of PCF with a sensibility of 70%, specificity of 88%. CONCLUSION The determination of cytokines in POD fluid on D2 is a reliable tool for predicting the development of a PCF after total laryngectomy.
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Affiliation(s)
- Nicolas Saroul
- Department of Otolaryngology - Head and Neck Surgery, CHU-Clermont-Ferrand, Clermont-Ferrand, France
- University of Clermont Auvergne, CHU-Clermont-Ferrand, INRAE, UNH, Clermont-Ferrand, France
| | - Margaux Loukine
- Department of Otolaryngology - Head and Neck Surgery, CHU-Clermont-Ferrand, Clermont-Ferrand, France
| | - Marc Durand
- Department of Otolaryngology - Head and Neck Surgery, CH Emile Roux, Le Puy-en-Velay, France
| | - Bruno Pereira
- Department of Biostatistics, CHU-Clermont-Ferrand, Clermont-Ferrand, France
| | - Isabelle Rozand
- Department of Biochemistry, CHU-Clermont-Ferrand, Clermont-Ferrand, France
| | - Justine Becaud
- Department of Otolaryngology - Head and Neck Surgery, CHU-Clermont-Ferrand, Clermont-Ferrand, France
| | - Quentin Martinez
- Department of Otolaryngology - Head and Neck Surgery, CHU-Clermont-Ferrand, Clermont-Ferrand, France
| | - Thierry Mom
- Department of Otolaryngology - Head and Neck Surgery, CHU-Clermont-Ferrand, Clermont-Ferrand, France
| | - Laurent Gilain
- Department of Otolaryngology - Head and Neck Surgery, CHU-Clermont-Ferrand, Clermont-Ferrand, France
| | - Bertrand Evrard
- Department of Clinical Immunology, CHU-Clermont-Ferrand, Clermont-Ferrand, France
| | - Mathilde Puechmaille
- Department of Otolaryngology - Head and Neck Surgery, CHU-Clermont-Ferrand, Clermont-Ferrand, France
| | - Benjamin Bonnet
- Department of Clinical Immunology, CHU-Clermont-Ferrand, Clermont-Ferrand, France
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11
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Alhaj Hussen K, Chabaane E, Nelson E, Lekiashvili S, Diop S, Keita S, Evrard B, Lardenois A, Delord M, Verhoeyen E, Cornils K, Kasraian Z, Macintyre EA, Cumano A, Garrick D, Goodhardt M, Andrieu GP, Asnafi V, Chalmel F, Canque B. Multimodal cartography of human lymphopoiesis reveals B and T/NK/ILC lineages are subjected to differential regulation. iScience 2023; 26:107890. [PMID: 37766969 PMCID: PMC10520540 DOI: 10.1016/j.isci.2023.107890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 08/24/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
The developmental cartography of human lymphopoiesis remains incompletely understood. Here, we establish a multimodal map demonstrating that lymphoid specification follows independent direct or stepwise hierarchic routes converging toward the emergence of newly characterized CD117lo multi-lymphoid progenitors (MLPs) that undergo a proliferation arrest before entering the CD127- (NK/ILC/T) or CD127+ (B) lymphoid pathways. While the differentiation of CD127- early lymphoid progenitors is mainly driven by Flt3 signaling, emergence of their CD127+ counterparts is regulated cell-intrinsically and depends exclusively on the divisional history of their upstream precursors, including hematopoietic stem cells. Further, transcriptional mapping of differentiation trajectories reveals that whereas myeloid granulomonocytic lineages follow continuous differentiation pathways, lymphoid trajectories are intrinsically discontinuous and characterized by sequential waves of cell proliferation allowing pre-commitment amplification of lymphoid progenitor pools. Besides identifying new lymphoid specification pathways and regulatory checkpoints, our results demonstrate that NK/ILC/T and B lineages are under fundamentally distinct modes of regulation. (149 words).
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Affiliation(s)
- Kutaiba Alhaj Hussen
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France
- Service de Biochimie, Université de Paris Saclay, Hôpital Paul Brousse, AP-HP, Villejuif, Paris, France
| | - Emna Chabaane
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France
| | - Elisabeth Nelson
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France
| | - Shalva Lekiashvili
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France
| | - Samuel Diop
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France
| | - Seydou Keita
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France
| | - Bertrand Evrard
- University Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Aurélie Lardenois
- University Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Marc Delord
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France
| | - Els Verhoeyen
- CIRI, International Center for Infectiology Research, Université de Lyon, INSERM U1111, Lyon, France
- Centre Mediterranéen de Médecine Moléculaire (C3M), INSERM U1065, Nice, France
| | - Kerstin Cornils
- Division of Pediatric Stem Cell Transplantation and Immunology, Department of Pediatric Hematology and Oncology, University Medical Center Hamburg-Eppendorf and Research Institute Children’s Cancer Center, Hamburg, Germany
| | - Zeinab Kasraian
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France
- Institut Necker Enfants-Malades, INSERM U1151, Hôpital Necker Enfants-Malades, Laboratoire d'Onco-Hématologie, Assistance Publique-Hôpitaux de Paris (AP-HP), Université de Paris, Paris, France
| | - Elizabeth A. Macintyre
- Institut Necker Enfants-Malades, INSERM U1151, Hôpital Necker Enfants-Malades, Laboratoire d'Onco-Hématologie, Assistance Publique-Hôpitaux de Paris (AP-HP), Université de Paris, Paris, France
| | - Ana Cumano
- Unit of Lymphopoiesis, Immunology Department, Institut Pasteur, Paris, France
| | - David Garrick
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France
| | - Michele Goodhardt
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France
| | - Guillaume P. Andrieu
- Institut Necker Enfants-Malades, INSERM U1151, Hôpital Necker Enfants-Malades, Laboratoire d'Onco-Hématologie, Assistance Publique-Hôpitaux de Paris (AP-HP), Université de Paris, Paris, France
| | - Vahid Asnafi
- Institut Necker Enfants-Malades, INSERM U1151, Hôpital Necker Enfants-Malades, Laboratoire d'Onco-Hématologie, Assistance Publique-Hôpitaux de Paris (AP-HP), Université de Paris, Paris, France
| | - Frederic Chalmel
- University Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Bruno Canque
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France
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12
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Lesné L, Desdoits-Lethimonier C, Hug E, Costet N, Raffenne L, Toupin M, Evrard B, Kugathas I, Lavoué V, Chalmel F, Jégou B, Mazaud-Guittot S. Antiepileptic drugs are endocrine disruptors for the human fetal testis ex vivo. Toxicol Sci 2023; 195:169-183. [PMID: 37505509 DOI: 10.1093/toxsci/kfad076] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023] Open
Abstract
Valproic acid (VPA) has long been the most widely used antiepileptic drug (AED) for the treatment of epilepsy, bipolar psychiatric disorders, and migraine. However, long-term VPA treatment has several adverse effects on the male reproductive system notably on endocrine functions and/or spermatic parameters. In utero exposure of the fetus to VPA is well known to be associated with a higher risk of several congenital malformations including those of male reproductive organs. Subsequent generations of AEDs, such as carbamazepine (CARB) and lamotrigine (LAM), are considered safer and are currently recommended for women of child-bearing age with epilepsy. Because anomalies of the male genital tract mostly result from endocrine imbalance during fetal life, we hypothesized that AEDs could directly impair testis differentiation. We thus aimed at identifying and characterizing the effects of VPA, CARB, and LAM on the differentiation and function of the different testicular cell types, and at understanding the mechanisms underlying these effects. By using ex vivo culture of first-trimester human fetal testes, we show that VPA induces multiple endocrine disruptive effects, compared with the milder ones caused by CARB and LAM. AED also subtly altered the germ cell lineage in distinct manners. Transcriptomic analysis of VPA-induced alterations highlighted a very broad range of effects on the fetal testis. Overall, our results show that AEDs can behave as endocrine disruptors for the human fetal testis ex vivo. This is consistent with, and likely underlies, the VPA-induced male genital tract masculinization abnormalities observed in patients.
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Affiliation(s)
- Laurianne Lesné
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail)-UMR_S 1085, 35000 Rennes, France
| | - Christèle Desdoits-Lethimonier
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail)-UMR_S 1085, 35000 Rennes, France
| | - Elisa Hug
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail)-UMR_S 1085, 35000 Rennes, France
| | - Nathalie Costet
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail)-UMR_S 1085, 35000 Rennes, France
| | - Léo Raffenne
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail)-UMR_S 1085, 35000 Rennes, France
| | - Maryne Toupin
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail)-UMR_S 1085, 35000 Rennes, France
| | - Bertrand Evrard
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail)-UMR_S 1085, 35000 Rennes, France
| | - Indusha Kugathas
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail)-UMR_S 1085, 35000 Rennes, France
| | - Vincent Lavoué
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail)-UMR_S 1085, 35000 Rennes, France
| | - Frédéric Chalmel
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail)-UMR_S 1085, 35000 Rennes, France
| | - Bernard Jégou
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail)-UMR_S 1085, 35000 Rennes, France
- EHESP-School of Public Health, 35043 Rennes, France
| | - Séverine Mazaud-Guittot
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail)-UMR_S 1085, 35000 Rennes, France
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13
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Séraudie I, Pillet C, Cesana B, Bazelle P, Jeanneret F, Evrard B, Chalmel F, Bouzit A, Battail C, Long JA, Descotes JL, Cochet C, Filhol O. A new scaffold-free tumoroid model provides a robust preclinical tool to investigate invasion and drug response in Renal Cell Carcinoma. Cell Death Dis 2023; 14:622. [PMID: 37736770 PMCID: PMC10517165 DOI: 10.1038/s41419-023-06133-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 08/24/2023] [Accepted: 09/07/2023] [Indexed: 09/23/2023]
Abstract
Clear cell Renal Cell Carcinoma (ccRCC) is one of the most prevalent kidney cancers, which is often asymptomatic and thus discovered at a metastatic state (mRCC). mRCC are highly heterogeneous tumors composed of subclonal populations that lead to poor treatment response rate. Several recent works explored the potential of ccRCC tumoroids culture derived from patients. However, these models were produced following a scaffold-based method using collagen I or Matrigel that exhibit lot variability and whose complexity could induce treatment response modifications and phenotypic alterations. Following the observation that ccRCC tumoroids can create their own niche by secreting extracellular matrix components, we developed the first scaffold-free tumoroid model of ccRCC tumors. Tumoroids from mice as well as from human tumors were generated with high success rate (≥90%) using a magnetic suspension method and standard culture media. Immunofluorescence analysis revealed their self-organization capacities to maintain multiple tumor-resident cell types, including endothelial progenitor cells. Transcriptomic analysis showed the reproducibility of the method highlighting that the majority of gene expression patterns was conserved in tumoroids compared to their matching tumor tissue. Moreover, this model enables to evaluate drug effects and invasiveness of renal cancer cells in a 3D context, providing a robust preclinical tool for drug screening and biomarker assessment in line with alternative ex vivo methods like tumor tissue slice culture or in vivo xenograft models.
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Grants
- EC | Horizon 2020 Framework Programme (EU Framework Programme for Research and Innovation H2020)
- INSERM, CEA, Ligue Comité de l’Isère, University Grenoble Alpes, Centre Hospitalier Universitaire de Grenoble-Alpes (CHUGA), Groupement des Entreprises Françaises dans la Lutte contre le Cancer (GEFLUC)
- CEA, UGA
- CEA, Inserm
- UGA, Inserm, CEA
- CHU, Ligue Comité de l’Isère
- Inserm, Ligue Comité de l’Isère
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Affiliation(s)
- Irinka Séraudie
- University Grenoble Alpes, Inserm, CEA, IRIG-Biosanté, UMR 1292, F-38000, Grenoble, France
| | - Catherine Pillet
- University Grenoble Alpes, Inserm, CEA, IRIG-Biosanté, UMR 1292, F-38000, Grenoble, France
| | - Beatrice Cesana
- University Grenoble Alpes, Inserm, CEA, IRIG-Biosanté, UMR 1292, F-38000, Grenoble, France
| | - Pauline Bazelle
- University Grenoble Alpes, Inserm, CEA, IRIG-Biosanté, UMR 1292, F-38000, Grenoble, France
| | - Florian Jeanneret
- University Grenoble Alpes, Inserm, CEA, IRIG-Biosanté, UMR 1292, F-38000, Grenoble, France
- University Grenoble Alpes, Inserm, CEA, IRIG-Biosanté, UA 13, F-38000, Grenoble, France
| | - Bertrand Evrard
- University Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, F-35000, Rennes, France
| | - Frédéric Chalmel
- University Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, F-35000, Rennes, France
| | - Assilah Bouzit
- Centre hospitalier universitaire Grenoble Alpes, CS 10217, 38043, Grenoble, cedex 9, France
| | - Christophe Battail
- University Grenoble Alpes, Inserm, CEA, IRIG-Biosanté, UMR 1292, F-38000, Grenoble, France
- University Grenoble Alpes, Inserm, CEA, IRIG-Biosanté, UA 13, F-38000, Grenoble, France
| | - Jean-Alexandre Long
- Centre hospitalier universitaire Grenoble Alpes, CS 10217, 38043, Grenoble, cedex 9, France
| | - Jean Luc Descotes
- Centre hospitalier universitaire Grenoble Alpes, CS 10217, 38043, Grenoble, cedex 9, France
| | - Claude Cochet
- University Grenoble Alpes, Inserm, CEA, IRIG-Biosanté, UMR 1292, F-38000, Grenoble, France
| | - Odile Filhol
- University Grenoble Alpes, Inserm, CEA, IRIG-Biosanté, UMR 1292, F-38000, Grenoble, France.
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14
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Petit FG, Kervarrec C, Allais-Bonnet A, Evrard B, Chalmel F, Deng C, Jamin SP. Uterine defects and estradiol-dependent development of oviductal diverticula in mice lacking the SMAD4 C-terminal Mad homology 2 domain. FASEB J 2023; 37:e23073. [PMID: 37402125 DOI: 10.1096/fj.202300737r] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/08/2023] [Accepted: 06/21/2023] [Indexed: 07/05/2023]
Abstract
In female mammals, the oviduct and uterus are essential sites for female and male gamete transport, fertilization, implantation, and maintenance of a successful pregnancy. To delineate the reproductive function of Mothers against decapentaplegic homolog 4 (Smad4), we specifically inactivated Smad4 in ovarian granulosa cells and, oviduct and uterine mesenchymal cells using the Amhr2-cre mouse line. Deletion of exon 8 of Smad4 results in the production of an MH2-truncated SMAD4 protein. These mutant mice are infertile due to the development of oviductal diverticula and defects during the implantation process. The ovaries are fully functional as demonstrated in an ovary transfer experiment. The development of oviductal diverticula occurs shortly after puberty and is dependent on estradiol. The diverticula interfere with sperm migration and embryo transit to the uterus, reducing the number of implantation sites. Analysis of the uterus shows that, even if implantation occurs, decidualization and vascularization are defective resulting in embryo resorption as early as the seventh day of pregnancy. Thus, Smad4 plays an important function in female reproduction by controlling the structural and functional integrity of the oviduct and uterus.
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Affiliation(s)
- Fabrice G Petit
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S1085, Rennes, France
- Univ Paris-Sud, Inserm, UMR_S0782, Clamart, France
| | - Christine Kervarrec
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S1085, Rennes, France
| | | | - Bertrand Evrard
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S1085, Rennes, France
| | - Frédéric Chalmel
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S1085, Rennes, France
| | - Chuxia Deng
- Faculty of Health Sciences, University of Macau, Macau SAR, China
| | - Soazik P Jamin
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S1085, Rennes, France
- Univ Paris-Sud, Inserm, UMR_S0782, Clamart, France
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15
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Dochez-Arnault J, Desdoits-Lethimonier C, Matias I, Evrard B, Lagarrigue M, Toupin M, Lardenois A, Chalmel F, Mazaud-Guittot S, Dejucq-Rainsford N, Gely-Pernot A. Expression of the endocannabinoid system and response to cannabinoid components by the human fetal testis. BMC Med 2023; 21:219. [PMID: 37430350 DOI: 10.1186/s12916-023-02916-5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 05/31/2023] [Indexed: 07/12/2023] Open
Abstract
BACKGROUND Cannabis consumption by pregnant women continues to increase worldwide, raising concerns about adverse effects on fetal growth and deleterious impacts on the newborn, in connection with evidence of placental transfer of cannabis compound. Cannabis action is mediated by the endocannabinoid system (ECS), which expression is well established in the brain but unknown in the developing testis. The fetal testis, whose endocrine function orchestrates the masculinization of many distant organs, is particularly sensitive to disruption by xenobiotics. In this context, we aimed to determine whether cannabis exposure has the potential to directly impact the human fetal testis. METHODS We determined the expression of components of the ECS in the human fetal testis from 6 to 17 developmental weeks and assessed the direct effects of phytocannabinoids Δ9-trans-tetrahydrocannabinol (THC) and cannabidiol (CBD) on the testis morphology and cell functions ex vivo. RESULTS We demonstrate the presence in the human fetal testis of two key endocannabinoids, 2-arachidonylglycerol (2-AG) and to a lower level anandamide (AEA), as well as a range of enzymes and receptors for the ECS. Ex vivo exposure of first trimester testes to CBD, THC, or CBD/THC [ratio 1:1] at 10-7 to 10-5 M altered testosterone secretion by Leydig cells, AMH secretion by Sertoli cells, and impacted testicular cell proliferation and viability as early as 72 h post-exposure. Transcriptomic analysis on 72 h-exposed fetal testis explants revealed 187 differentially expressed genes (DEGs), including genes involved in steroid synthesis and toxic substance response. Depending on the molecules and testis age, highly deleterious effects of phytocannabinoid exposure were observed on testis tissue after 14 days, including Sertoli and germ cell death. CONCLUSIONS Our study is the first to evidence the presence of the ECS in the human fetal testis and to highlight the potential adverse effect of cannabis consumption by pregnant women onto the development of the male gonad.
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Affiliation(s)
- J Dochez-Arnault
- Univ Rennes, Inserm (Institut National de La Santé Et de La Recherche Médicale), EHESP, Irset (Institut de Recherche en Santé, Environnement Et Travail) - UMR_S 1085 (Institut de Recherche en Santé, environnement et travail), 9 Avenue du Professeur Léon Bernard, 35000, Rennes, CEDEX, France
| | - C Desdoits-Lethimonier
- Univ Rennes, Inserm (Institut National de La Santé Et de La Recherche Médicale), EHESP, Irset (Institut de Recherche en Santé, Environnement Et Travail) - UMR_S 1085 (Institut de Recherche en Santé, environnement et travail), 9 Avenue du Professeur Léon Bernard, 35000, Rennes, CEDEX, France
| | - I Matias
- Neurocentre Magendie - Inserm, U1215, Bordeaux, France
| | - B Evrard
- Univ Rennes, Inserm (Institut National de La Santé Et de La Recherche Médicale), EHESP, Irset (Institut de Recherche en Santé, Environnement Et Travail) - UMR_S 1085 (Institut de Recherche en Santé, environnement et travail), 9 Avenue du Professeur Léon Bernard, 35000, Rennes, CEDEX, France
| | - M Lagarrigue
- Univ Rennes, Inserm (Institut National de La Santé Et de La Recherche Médicale), EHESP, Irset (Institut de Recherche en Santé, Environnement Et Travail) - UMR_S 1085 (Institut de Recherche en Santé, environnement et travail), 9 Avenue du Professeur Léon Bernard, 35000, Rennes, CEDEX, France
| | | | - A Lardenois
- Univ Rennes, Inserm (Institut National de La Santé Et de La Recherche Médicale), EHESP, Irset (Institut de Recherche en Santé, Environnement Et Travail) - UMR_S 1085 (Institut de Recherche en Santé, environnement et travail), 9 Avenue du Professeur Léon Bernard, 35000, Rennes, CEDEX, France
| | - F Chalmel
- Univ Rennes, Inserm (Institut National de La Santé Et de La Recherche Médicale), EHESP, Irset (Institut de Recherche en Santé, Environnement Et Travail) - UMR_S 1085 (Institut de Recherche en Santé, environnement et travail), 9 Avenue du Professeur Léon Bernard, 35000, Rennes, CEDEX, France
| | - S Mazaud-Guittot
- Univ Rennes, Inserm (Institut National de La Santé Et de La Recherche Médicale), EHESP, Irset (Institut de Recherche en Santé, Environnement Et Travail) - UMR_S 1085 (Institut de Recherche en Santé, environnement et travail), 9 Avenue du Professeur Léon Bernard, 35000, Rennes, CEDEX, France
| | - N Dejucq-Rainsford
- Univ Rennes, Inserm (Institut National de La Santé Et de La Recherche Médicale), EHESP, Irset (Institut de Recherche en Santé, Environnement Et Travail) - UMR_S 1085 (Institut de Recherche en Santé, environnement et travail), 9 Avenue du Professeur Léon Bernard, 35000, Rennes, CEDEX, France
| | - A Gely-Pernot
- Univ Rennes, Inserm (Institut National de La Santé Et de La Recherche Médicale), EHESP, Irset (Institut de Recherche en Santé, Environnement Et Travail) - UMR_S 1085 (Institut de Recherche en Santé, environnement et travail), 9 Avenue du Professeur Léon Bernard, 35000, Rennes, CEDEX, France.
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16
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Keita S, Diop S, Lekiashvili S, Chabaane E, Nelson E, Strullu M, Arfeuille C, Guimiot F, Domet T, Duchez S, Evrard B, Darde T, Larghero J, Verhoeyen E, Cumano A, Macintyre EA, Kasraian Z, Jouen F, Goodhardt M, Garrick D, Chalmel F, Alhaj Hussen K, Canque B. Distinct subsets of multi-lymphoid progenitors support ontogeny-related changes in human lymphopoiesis. Cell Rep 2023; 42:112618. [PMID: 37294633 DOI: 10.1016/j.celrep.2023.112618] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 04/13/2023] [Accepted: 05/22/2023] [Indexed: 06/11/2023] Open
Abstract
Changes in lymphocyte production patterns occurring across human ontogeny remain poorly defined. In this study, we demonstrate that human lymphopoiesis is supported by three waves of embryonic, fetal, and postnatal multi-lymphoid progenitors (MLPs) differing in CD7 and CD10 expression and their output of CD127-/+ early lymphoid progenitors (ELPs). In addition, our results reveal that, like the fetal-to-adult switch in erythropoiesis, transition to postnatal life coincides with a shift from multilineage to B lineage-biased lymphopoiesis and an increase in production of CD127+ ELPs, which persists until puberty. A further developmental transition is observed in elderly individuals whereby B cell differentiation bypasses the CD127+ compartment and branches directly from CD10+ MLPs. Functional analyses indicate that these changes are determined at the level of hematopoietic stem cells. These findings provide insights for understanding identity and function of human MLPs and the establishment and maintenance of adaptative immunity.
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Affiliation(s)
- Seydou Keita
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France
| | - Samuel Diop
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France; Laboratoire Cognitions Humaine et Artificielle (CHArt) EA 4004 FED 4246, École Pratique des Hautes Études/PSL Research University, Paris, France
| | - Shalva Lekiashvili
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France
| | - Emna Chabaane
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France
| | - Elisabeth Nelson
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France
| | - Marion Strullu
- Service d'Hémato-Immunologie Pédiatrique, Inserm U1131, Université de Paris, Hôpital Robert-Debré, AP-HP, Paris, France
| | - Chloé Arfeuille
- Service d'Hémato-Immunologie Pédiatrique, Inserm U1131, Université de Paris, Hôpital Robert-Debré, AP-HP, Paris, France
| | - Fabien Guimiot
- INSERM UMR 1141, Service de Biologie du Développement, Université de Paris, Hôpital Robert-Debré, AP-HP, Paris, France
| | - Thomas Domet
- AP-HP, Hôpital Saint-Louis, Unité de Thérapie Cellulaire, CIC de Biothérapies, Université de Paris, INSERM U976, Paris, France
| | - Sophie Duchez
- Plateforme d'Imagerie et de Tri Cellulaire, Institut de Recherche Saint Louis, Paris, France
| | - Bertrand Evrard
- INSERM, EHESP, IRSET (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, University Rennes, Rennes, France
| | | | - Jerome Larghero
- AP-HP, Hôpital Saint-Louis, Unité de Thérapie Cellulaire, CIC de Biothérapies, Université de Paris, INSERM U976, Paris, France
| | - Els Verhoeyen
- CIRI, International Center for Infectiology Research, Université de Lyon, INSERM U1111, Lyon, France; Centre Mediterranéen de Médecine Moléculaire (C3M), INSERM U1065, Nice, France
| | - Ana Cumano
- Unit of Lymphopoiesis, Immunology Department, Institut Pasteur, Paris, France
| | - Elizabeth A Macintyre
- Institut Necker Enfants-Malades, Team 2, INSERM Unité 1151, Hôpital Necker Enfants-Malades, Laboratoire d'Onco-Hématologie, Assistance Publique-Hôpitaux de Paris (AP-HP), Université de Paris, Paris, France
| | - Zeinab Kasraian
- Institut Necker Enfants-Malades, Team 2, INSERM Unité 1151, Hôpital Necker Enfants-Malades, Laboratoire d'Onco-Hématologie, Assistance Publique-Hôpitaux de Paris (AP-HP), Université de Paris, Paris, France
| | - François Jouen
- Laboratoire Cognitions Humaine et Artificielle (CHArt) EA 4004 FED 4246, École Pratique des Hautes Études/PSL Research University, Paris, France
| | - Michele Goodhardt
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France
| | - David Garrick
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France
| | - Frederic Chalmel
- INSERM, EHESP, IRSET (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, University Rennes, Rennes, France
| | - Kutaiba Alhaj Hussen
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France; Service de Biochimie, Université de Paris Saclay, Hôpital Paul Brousse, AP-HP, Paris, France.
| | - Bruno Canque
- INSERM U976, Université de Paris, École Pratique des Hautes Études/PSL Research University, Institut de Recherche Saint Louis, Paris, France.
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Ramhøj L, Axelstad M, Baert Y, Cañas-Portilla AI, Chalmel F, Dahmen L, De La Vieja A, Evrard B, Haigis AC, Hamers T, Heikamp K, Holbech H, Iglesias-Hernandez P, Knapen D, Marchandise L, Morthorst JE, Nikolov NG, Nissen ACVE, Oelgeschlaeger M, Renko K, Rogiers V, Schüürmann G, Stinckens E, Stub MH, Torres-Ruiz M, Van Duursen M, Vanhaecke T, Vergauwen L, Wedebye EB, Svingen T. New approach methods to improve human health risk assessment of thyroid hormone system disruption-a PARC project. Front Toxicol 2023; 5:1189303. [PMID: 37265663 PMCID: PMC10229837 DOI: 10.3389/ftox.2023.1189303] [Citation(s) in RCA: 3] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 05/05/2023] [Indexed: 06/03/2023] Open
Abstract
Current test strategies to identify thyroid hormone (TH) system disruptors are inadequate for conducting robust chemical risk assessment required for regulation. The tests rely heavily on histopathological changes in rodent thyroid glands or measuring changes in systemic TH levels, but they lack specific new approach methodologies (NAMs) that can adequately detect TH-mediated effects. Such alternative test methods are needed to infer a causal relationship between molecular initiating events and adverse outcomes such as perturbed brain development. Although some NAMs that are relevant for TH system disruption are available-and are currently in the process of regulatory validation-there is still a need to develop more extensive alternative test batteries to cover the range of potential key events along the causal pathway between initial chemical disruption and adverse outcomes in humans. This project, funded under the Partnership for the Assessment of Risk from Chemicals (PARC) initiative, aims to facilitate the development of NAMs that are specific for TH system disruption by characterizing in vivo mechanisms of action that can be targeted by in embryo/in vitro/in silico/in chemico testing strategies. We will develop and improve human-relevant in vitro test systems to capture effects on important areas of the TH system. Furthermore, we will elaborate on important species differences in TH system disruption by incorporating non-mammalian vertebrate test species alongside classical laboratory rat species and human-derived in vitro assays.
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Affiliation(s)
- Louise Ramhøj
- Research Group for Molecular and Reproductive Toxicology, National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Marta Axelstad
- Research Group for Molecular and Reproductive Toxicology, National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Yoni Baert
- Department In Vitro Toxicology and Dermato-cosmetology (IVTD), Vrije Universiteit Brussel, Jette, Belgium
| | - Ana I. Cañas-Portilla
- Environmental Toxicology Unit from National Center for Environmental Health (CNSA), Endocrine Tumor Unit from UFIEC, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Frédéric Chalmel
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), Rennes, France
| | - Lars Dahmen
- Department Experimental Toxicology and ZEBET, German Centre for the Protection of Laboratory Animals (Bf3R), German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Antonio De La Vieja
- Environmental Toxicology Unit from National Center for Environmental Health (CNSA), Endocrine Tumor Unit from UFIEC, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Bertrand Evrard
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), Rennes, France
| | - Ann-Cathrin Haigis
- Zebrafishlab, Veterinary Physiology and Biochemistry, Department of Veterinary Sciences, University of Antwerp, Wilrijk, Belgium
| | - Timo Hamers
- Amsterdam Institute for Life and Environment (A-LIFE), Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Kim Heikamp
- Amsterdam Institute for Life and Environment (A-LIFE), Vrije Universiteit Amsterdam, Amsterdam, Netherlands
- Centre for Health Protection (GZB), National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Henrik Holbech
- Department of Biology, University of Southern Denmark, Odense, Denmark
| | - Patricia Iglesias-Hernandez
- Environmental Toxicology Unit from National Center for Environmental Health (CNSA), Endocrine Tumor Unit from UFIEC, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Dries Knapen
- Zebrafishlab, Veterinary Physiology and Biochemistry, Department of Veterinary Sciences, University of Antwerp, Wilrijk, Belgium
| | - Lorna Marchandise
- Department In Vitro Toxicology and Dermato-cosmetology (IVTD), Vrije Universiteit Brussel, Jette, Belgium
| | - Jane E. Morthorst
- Department of Biology, University of Southern Denmark, Odense, Denmark
| | - Nikolai Georgiev Nikolov
- Group for Chemical Risk Assessment and GMO, National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Ana C. V. E. Nissen
- Group for Chemical Risk Assessment and GMO, National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Michael Oelgeschlaeger
- Department Experimental Toxicology and ZEBET, German Centre for the Protection of Laboratory Animals (Bf3R), German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Kostja Renko
- Department Experimental Toxicology and ZEBET, German Centre for the Protection of Laboratory Animals (Bf3R), German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Vera Rogiers
- Department In Vitro Toxicology and Dermato-cosmetology (IVTD), Vrije Universiteit Brussel, Jette, Belgium
| | - Gerrit Schüürmann
- UFZ Department of Ecological Chemistry, Helmholtz Centre for Environmental Research, Leipzig, Germany
| | - Evelyn Stinckens
- Zebrafishlab, Veterinary Physiology and Biochemistry, Department of Veterinary Sciences, University of Antwerp, Wilrijk, Belgium
| | - Mette H. Stub
- Research Group for Molecular and Reproductive Toxicology, National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Monica Torres-Ruiz
- Environmental Toxicology Unit from National Center for Environmental Health (CNSA), Endocrine Tumor Unit from UFIEC, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Majorie Van Duursen
- Amsterdam Institute for Life and Environment (A-LIFE), Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Tamara Vanhaecke
- Department In Vitro Toxicology and Dermato-cosmetology (IVTD), Vrije Universiteit Brussel, Jette, Belgium
| | - Lucia Vergauwen
- Zebrafishlab, Veterinary Physiology and Biochemistry, Department of Veterinary Sciences, University of Antwerp, Wilrijk, Belgium
| | - Eva Bay Wedebye
- Group for Chemical Risk Assessment and GMO, National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Terje Svingen
- Research Group for Molecular and Reproductive Toxicology, National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark
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18
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Saout JR, Lecuyer G, Léonard S, Evrard B, Kammerer-Jacquet SF, Noël L, Khene ZE, Mathieu R, Brunot A, Rolland AD, Bensalah K, Rioux-Leclercq N, Lardenois A, Chalmel F. Single-cell Deconvolution of a Specific Malignant Cell Population as a Poor Prognostic Biomarker in Low-risk Clear Cell Renal Cell Carcinoma Patients. Eur Urol 2023; 83:441-451. [PMID: 36801089 DOI: 10.1016/j.eururo.2023.02.008] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 12/10/2022] [Accepted: 02/03/2023] [Indexed: 02/17/2023]
Abstract
BACKGROUND Intratumor heterogeneity (ITH) is a key feature in clear cell renal cell carcinomas (ccRCCs) that impacts outcomes such as aggressiveness, response to treatments, or recurrence. In particular, it may explain tumor relapse after surgery in clinically low-risk patients who did not benefit from adjuvant therapy. Recently, single-cell RNA sequencing (scRNA-seq) has emerged as a powerful tool to unravel expression ITH (eITH) and might enable better assessment of clinical outcomes in ccRCC. OBJECTIVE To explore eITH in ccRCC with a focus on malignant cells (MCs) and assess its relevance to improve prognosis for low-risk patients. DESIGN, SETTING, AND PARTICIPANTS We performed scRNA-seq on tumor samples from five untreated ccRCC patients ranging from pT1a to pT3b. Data were complemented with a published dataset composed of pairs of matched normal and ccRCC samples. INTERVENTION Radical or partial nephrectomy on untreated ccRCC patients. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS Viability and cell type proportions were determined by flow cytometry. Following scRNA-seq, a functional analysis was performed and tumor progression trajectories were inferred. A deconvolution approach was applied on an external cohort, and Kaplan-Meier survival curves were estimated with respect to the prevalence of malignant clusters. RESULTS AND LIMITATIONS We analyzed 54 812 cells and identified 35 cell subpopulations. The eITH analysis revealed that each tumor contained various degrees of clonal diversity. The transcriptomic signatures of MCs in one particularly heterogeneous sample were used to design a deconvolution-based strategy that allowed the risk stratification of 310 low-risk ccRCC patients. CONCLUSIONS We described eITH in ccRCCs, and used this information to establish significant cell population-based prognostic signatures and better discriminate ccRCC patients. This approach has the potential to improve the stratification of clinically low-risk patients and their therapeutic management. PATIENT SUMMARY We sequenced the RNA content of individual cell subpopulations composed of clear cell renal cell carcinomas and identified specific malignant cells the genetic information of which can be used to predict tumor progression.
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Affiliation(s)
- Judikael R Saout
- Inserm, EHESP, Univ Rennes, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Gwendoline Lecuyer
- Inserm, EHESP, Univ Rennes, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Simon Léonard
- Inserm, EHESP, Univ Rennes, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France; LabEx IGO "Immunotherapy, Graft, Oncology", Nantes, France; INSERM, EFS, UMR S1236, Univ Rennes, Rennes, France
| | - Bertrand Evrard
- Inserm, EHESP, Univ Rennes, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Solène-Florence Kammerer-Jacquet
- Inserm, EHESP, Univ Rennes, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France; Pathology Department, University Hospital of Rennes, Rennes, France
| | - Laurence Noël
- Inserm, EHESP, Univ Rennes, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | | | - Romain Mathieu
- Inserm, EHESP, Univ Rennes, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France; Urology Department, University Hospital of Rennes, Rennes, France
| | - Angélique Brunot
- Department of Medical Oncology, Centre Eugène Marquis, Unicancer, Rennes, France
| | - Antoine D Rolland
- Inserm, EHESP, Univ Rennes, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Karim Bensalah
- Urology Department, University Hospital of Rennes, Rennes, France
| | - Nathalie Rioux-Leclercq
- Inserm, EHESP, Univ Rennes, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France; Pathology Department, University Hospital of Rennes, Rennes, France
| | - Aurélie Lardenois
- Inserm, EHESP, Univ Rennes, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Frédéric Chalmel
- Inserm, EHESP, Univ Rennes, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France.
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Ruault A, Philipponnet C, Sapin V, Evrard B, Bouzgarrou R, Calvet L, Thouy F, Grapin K, Bonnet B, Adda M, Souweine B, Dupuis C. Epidemiology and Outcome of Early-Onset Acute Kidney Injury and Recovery in Critically Ill COVID-19 Patients: A Retrospective Analysis. Biomedicines 2023; 11:biomedicines11041001. [PMID: 37189619 DOI: 10.3390/biomedicines11041001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 02/28/2023] [Accepted: 03/16/2023] [Indexed: 03/29/2023] Open
Abstract
Background: The clinical significance of early-onset acute kidney injury (EO-AKI) and recovery in severe COVID-19 intensive care unit (ICU) patients is poorly documented. Objective: The aim of the study was to assess the epidemiology and outcome of EO-AKI and recovery in ICU patients admitted for SARS-CoV-2 pneumonia. Design: This was a retrospective single-centre study. Setting: The study was carried out at the medical ICU of the university hospital of Clermont-Ferrand, France. Patients: All consecutive adult patients aged ≥18 years admitted between 20 March 2020 and 31 August 2021 for SARS-CoV-2 pneumonia were enrolled. Patients with chronic kidney disease, referred from another ICU, and with an ICU length of stay (LOS) ≤72 h were excluded. Interventions: EO-AKI was defined on the basis of serum creatinine levels according to the Kidney Disease Improving Global Outcomes criteria, developing ≤7 days. Depending on renal recovery, defined by the normalization of serum creatinine levels, EO-AKI was transient (recovery within 48 h), persistent (recovery between 3 and 7 days) or AKD (no recovery within 7 days after EO-AKI onset). Measurements: Uni- and multivariate analyses were performed to determine factors associated with EO-AKI and EO-AKI recovery. Main Results: EO-AKI occurred in 84/266 (31.5%) study patients, of whom 42 (50%), 17 (20.2%) and 25 (29.7%) had EO-AKI stages 1, 2 and 3, respectively. EO-AKI was classified as transient, persistent and AKD in 40 (47.6%), 15 (17.8%) and 29 (34.6%) patients, respectively. The 90-day mortality was 87/244 (35.6%) and increased with EO-AKI occurrence and severity: no EO-AKI, 38/168 (22.6%); EO-AKI stage 1, 22/39 (56.4%); stage 2, 9/15 (60%); and stage 3, 18/22 (81.8%) (p < 0.01). The 90-day mortality in patients with transient or persistent AKI and AKD was 20/36 (55.6%), 8/14 (57.1%) and 21/26 (80.8%), respectively (p < 0.01). MAKE-90 occurred in 42.6% of all patients. Conclusions: In ICU patients admitted for SARS-CoV-2 pneumonia, the development of EO-AKI and time to recovery beyond day 7 of onset were associated with poor outcome.
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20
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Davidsen N, Ramhøj L, Lykkebo CA, Kugathas I, Poulsen R, Rosenmai AK, Evrard B, Darde TA, Axelstad M, Bahl MI, Hansen M, Chalmel F, Licht TR, Svingen T. Corrigendum to "PFOS-induced thyroid hormone system disrupted rats display organ-specific changes in their transcriptomes" [Environ. Pollut. 305 (2022) 119340]. Environ Pollut 2023; 317:120709. [PMID: 36462679 DOI: 10.1016/j.envpol.2022.120709] [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] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 11/18/2022] [Indexed: 06/17/2023]
Affiliation(s)
- Nichlas Davidsen
- National Food Institute, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Louise Ramhøj
- National Food Institute, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Claus Asger Lykkebo
- National Food Institute, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Indusha Kugathas
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Rikke Poulsen
- Department of Environmental Science, Aarhus University, Roskilde DK, 4000, Denmark
| | | | - Bertrand Evrard
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | | | - Marta Axelstad
- National Food Institute, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Martin Iain Bahl
- National Food Institute, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Martin Hansen
- Department of Environmental Science, Aarhus University, Roskilde DK, 4000, Denmark
| | - Frederic Chalmel
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Tine Rask Licht
- National Food Institute, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Terje Svingen
- National Food Institute, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark.
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21
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Kugathas I, Johansson HKL, Chan Sock Peng E, Toupin M, Evrard B, Darde TA, Boberg J, Draskau MK, Rolland AD, Mazaud-Guittot S, Chalmel F, Svingen T. Transcriptional profiling of the developing rat ovary following intrauterine exposure to the endocrine disruptors diethylstilbestrol and ketoconazole. Arch Toxicol 2023; 97:849-863. [PMID: 36653537 PMCID: PMC9968686 DOI: 10.1007/s00204-023-03442-2] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 01/09/2023] [Indexed: 01/20/2023]
Abstract
Exposure to endocrine-disrupting chemicals (EDCs) during development may cause reproductive disorders in women. Although female reproductive endpoints are assessed in rodent toxicity studies, a concern is that typical endpoints are not sensitive enough to detect chemicals of concern to human health. If so, measured endpoints must be improved or new biomarkers of effects included. Herein, we have characterized the dynamic transcriptional landscape of developing rat ovaries exposed to two well-known EDCs, diethylstilbestrol (DES) and ketoconazole (KTZ), by 3' RNA sequencing. Rats were orally exposed from day 7 of gestation until birth, and from postnatal day 1 until days 6, 14 or 22. Three exposure doses for each chemical were used: 3, 6 and 12 µg/kg bw/day of DES; 3, 6, 12 mg/kg bw/day of KTZ. The transcriptome changed dynamically during perinatal development in control ovaries, with 1137 differentially expressed genes (DEGs) partitioned into 3 broad expression patterns. A cross-species deconvolution strategy based on a mouse ovary developmental cell atlas was used to map any changes to ovarian cellularity across the perinatal period to allow for characterization of actual changes to gene transcript levels. A total of 184 DEGs were observed across dose groups and developmental stages in DES-exposed ovaries, and 111 DEGs in KTZ-exposed ovaries across dose groups and developmental stages. Based on our analyses, we have identified new candidate biomarkers for female reproductive toxicity induced by EDC, including Kcne2, Calb2 and Insl3.
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Affiliation(s)
- Indusha Kugathas
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, 9 avenue du Professeur Léon Bernard, 35000 Rennes, France
| | - Hanna K. L. Johansson
- National Food Institute, Technical University of Denmark, Kemitorvet, Building 202, 2800 Kongens Lyngby, Denmark
| | - Edith Chan Sock Peng
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, 9 avenue du Professeur Léon Bernard, 35000 Rennes, France
| | - Maryne Toupin
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, 9 avenue du Professeur Léon Bernard, 35000 Rennes, France
| | - Bertrand Evrard
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, 9 avenue du Professeur Léon Bernard, 35000 Rennes, France
| | | | - Julie Boberg
- National Food Institute, Technical University of Denmark, Kemitorvet, Building 202, 2800 Kongens Lyngby, Denmark
| | - Monica K. Draskau
- National Food Institute, Technical University of Denmark, Kemitorvet, Building 202, 2800 Kongens Lyngby, Denmark
| | - Antoine D. Rolland
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, 9 avenue du Professeur Léon Bernard, 35000 Rennes, France
| | - Séverine Mazaud-Guittot
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, 9 avenue du Professeur Léon Bernard, 35000 Rennes, France
| | - Frédéric Chalmel
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, 9 avenue du Professeur Léon Bernard, 35000, Rennes, France.
| | - Terje Svingen
- National Food Institute, Technical University of Denmark, Kemitorvet, Building 202, 2800, Kongens Lyngby, Denmark.
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22
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Ayyoubi S, van Kampen EEM, Kocabas LI, Parulski C, Lechanteur A, Evrard B, De Jager K, Muller E, Wilms EW, Meulenhoff PWC, Ruijgrok EJ. 3D printed, personalized sustained release cortisol for patients with adrenal insufficiency. Int J Pharm 2022; 630:122466. [PMID: 36493969 DOI: 10.1016/j.ijpharm.2022.122466] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/27/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
The standard of care for patients with Adrenal Insufficiency (AI) is suboptimal. Administration of hydrocortisone three times a day produces plasma cortisol fluctuations associated with negative health outcomes. Furthermore, there is a high inter-individual variability in cortisol need, necessitating a personalized approach. It is hypothesized that a personalized, sustained release formulation would enhance the pharmacotherapy by mimicking the physiological cortisol plasma concentration at a higher level. Therefore, a novel 24 h sustained release 3D printed (3DP) hydrocortisone formulation has been developed (M3DICORT) by coupling hot-melt extrusion with fused deposition modeling. A uniform drug distribution in the 3DP tablets is demonstrated by a content of 101.66 ± 1.60 % with an acceptance value of 4.01. Furthermore, tablets had a stable 24 h dissolution profile where the intra-batch standard deviation was ± 2.8 % and the inter-batch standard deviation was ± 6.8 %. Tablet height and hydrocortisone content were correlated (R2 = 0.996), providing a tool for easy dose personalization. Tablets maintained critical quality attributes, such as dissolution profile (f2 > 60) and content uniformity after process transfer from a single-screw extruder to a twin-screw extruder. Impurities were observed in the final product which should be mitigated before clinical assessment. To our knowledge, M3DICORT is the first 3DP hydrocortisone formulation specifically developed for AI.
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Affiliation(s)
- S Ayyoubi
- Department of Hospital Pharmacy, Erasmus University Medical Center, Dr Molewaterplein 40, 3015 GD Rotterdam, the Netherlands.
| | - E E M van Kampen
- Department of Hospital Pharmacy, Erasmus University Medical Center, Dr Molewaterplein 40, 3015 GD Rotterdam, the Netherlands
| | - L I Kocabas
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, the Netherlands
| | - C Parulski
- Laboratory of Pharmaceutical Technology and Biopharmacy, Center for Interdisciplinary Research on Medicines (CIRM), Department of Pharmacy, University of Liege (ULiege), Avenue Hippocrate 15, 4000 Liege, Belgium
| | - A Lechanteur
- Laboratory of Pharmaceutical Technology and Biopharmacy, Center for Interdisciplinary Research on Medicines (CIRM), Department of Pharmacy, University of Liege (ULiege), Avenue Hippocrate 15, 4000 Liege, Belgium
| | - B Evrard
- Laboratory of Pharmaceutical Technology and Biopharmacy, Center for Interdisciplinary Research on Medicines (CIRM), Department of Pharmacy, University of Liege (ULiege), Avenue Hippocrate 15, 4000 Liege, Belgium
| | - K De Jager
- Department of Hospital Pharmacy, Erasmus University Medical Center, Dr Molewaterplein 40, 3015 GD Rotterdam, the Netherlands
| | - E Muller
- Department of Pharmaceutical Quality Control, The Hague Hospital Pharmacy, Charlotte Jacobslaan 70, 2545 AB The Hague, the Netherlands
| | - E W Wilms
- Department of Pharmaceutical Quality Control, The Hague Hospital Pharmacy, Charlotte Jacobslaan 70, 2545 AB The Hague, the Netherlands
| | - P W C Meulenhoff
- Tridi Pharma B.V. M.H. Trompstraat 7, 3572 XS Utrecht, the Netherlands
| | - E J Ruijgrok
- Department of Hospital Pharmacy, Erasmus University Medical Center, Dr Molewaterplein 40, 3015 GD Rotterdam, the Netherlands
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23
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Draskau MK, Schwartz CL, Evrard B, Lardenois A, Pask A, Chalmel F, Svingen T. The anti-androgenic fungicide triticonazole induces region-specific transcriptional changes in the developing rat perineum and phallus. Chemosphere 2022; 308:136346. [PMID: 36084822 DOI: 10.1016/j.chemosphere.2022.136346] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 08/05/2022] [Accepted: 09/02/2022] [Indexed: 06/15/2023]
Abstract
Intrauterine exposure to endocrine disrupting chemicals can interfere with male reproductive development. This can lead to male reproductive disorders such as hypospadias, cryptorchidism and reduced fertility, as well as shorter anogenital distance (AGD) - a biomarker for incomplete androgen-dependent fetal masculinization. However, it remains challenging to predict adverse in vivo outcomes based on in vitro effect patterns for many chemicals. This is a challenge for modern toxicology, which aims to reduce animal testing for chemical safety assessments. To enable the transition towards higher reliance on alternative test methods, we need to better map underlying mechanisms leading to adverse effects. Herein, we have analyzed the transcriptome of the perineum and phallus of male fetal rats and defined the impacts of exposure to an anti-androgenic fungicide, triticonazole. Previously we have shown that developmental exposure to triticonazole can induce short male AGD, but without a marked effect on the transcriptome of the fetal testes. In contrast, we report here significant changes to the transcriptional landscape of the perineum and phallus, including regional differences between these adjacent tissues. This highlights the importance of analyzing the correct tissue when characterizing mechanisms of complex in vivo effect outcomes. Our results provide a rich resource for the spatiotemporal gene networks that are involved in the development of male external genitalia, and that can be disrupted upon exposure to chemicals that prevent normal masculinization of the perineum and phallus. Such data will be critical in the development of novel alternative test methods to determine the endocrine disrupting potential of existing and emerging chemicals.
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Affiliation(s)
- Monica Kam Draskau
- National Food Institute, Technical University of Denmark, Kemitorvet Building 202, Kongens Lyngby DK-2800, Denmark
| | - Camilla Lindgren Schwartz
- National Food Institute, Technical University of Denmark, Kemitorvet Building 202, Kongens Lyngby DK-2800, Denmark
| | - Bertrand Evrard
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, F-35000 Rennes, France
| | - Aurélie Lardenois
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, F-35000 Rennes, France
| | - Andrew Pask
- School of BioSciences, The University of Melbourne, Melbourne, 3010, Australia
| | - Frédéric Chalmel
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, F-35000 Rennes, France
| | - Terje Svingen
- National Food Institute, Technical University of Denmark, Kemitorvet Building 202, Kongens Lyngby DK-2800, Denmark.
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24
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Davidsen N, Ramhøj L, Kugathas I, Evrard B, Darde TA, Chalmel F, Svingen T, Rosenmai AK. PFOS disrupts key developmental pathways during hiPSC-derived cardiomyocyte differentiation in vitro. Toxicol In Vitro 2022; 85:105475. [PMID: 36116746 DOI: 10.1016/j.tiv.2022.105475] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 08/17/2022] [Accepted: 09/12/2022] [Indexed: 11/26/2022]
Abstract
Exposure to perfluorooctanesulfonic acid (PFOS) has been associated with congenital heart disease (CHD) and decreased birth weight. PFOS exposure can disrupt signaling pathways relevant for cardiac development in stem cell-derived cardiomyocyte assays, such as the PluriBeat assay, where spheroids of human induced pluripotent stem cells (hiPSCs) differentiate into contracting cardiomyocytes. Notably, cell line origin can also affect how the assay responds to chemical exposure. Herein, we examined the effect of PFOS on cardiomyocyte differentiation by transcriptomics profiling of two different hiPSC lines to see if they exhibit a common pattern of disruption. Two stages of differentiation were investigated: the cardiac progenitor stage and the cardiomyocyte stage. Many differentially expressed genes (DEGs) were observed between cell lines independent of exposure. However, 135 DEGs were identified as common between the two cell lines. Of these, 10 DEGs were associated with GO-terms related to the heart. PFOS exposure disrupted multiple signaling pathways relevant to cardiac development, including WNT, TGF, HH, and EGF. Of these pathways, genes related to the non-canonical WNTCa2+ signaling was particularly affected. PFOS thus has the capacity to disrupt pathways important for cardiac development and function.
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Affiliation(s)
- Nichlas Davidsen
- National Food Institute, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark.
| | - Louise Ramhøj
- National Food Institute, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Indusha Kugathas
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000 Rennes, France
| | - Bertrand Evrard
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000 Rennes, France
| | | | - Frédéric Chalmel
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000 Rennes, France
| | - Terje Svingen
- National Food Institute, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
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Bailly M, Pélissier L, Coudeyre E, Evrard B, Bingula R, Rochette C, Mériade L, Blavignac C, Fournier AC, Bignon YJ, Rannou F, Dutheil F, Thivel D, Duclos M. Systematic Review of COVID-19-Related Physical Activity-Based Rehabilitations: Benefits to Be Confirmed by More Robust Methodological Approaches. Int J Environ Res Public Health 2022; 19:ijerph19159025. [PMID: 35897400 PMCID: PMC9331032 DOI: 10.3390/ijerph19159025] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/19/2022] [Accepted: 07/20/2022] [Indexed: 02/04/2023]
Abstract
The first emergency was to receive and treat COVID-19 patients in their acute phase; today, there is a clear need to propose appropriate post-acute rehabilitation programs. The aim of this research was to systematically review the effects of physical activity programs in the recovery of post-COVID-19 patients. The literature search followed the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines, was registered in the PROSPERO database (CRD42022289219), and was conducted between August and December 2021. A total of 35 studies out of the 1528 initially identified were finally included in the analysis. The systematic review clearly showed the health benefits of rehabilitation including physical activity in post-COVID-19 recovery, regardless of exercise modalities. These positive results were even observed using minor muscle re-mobilization for severe cases (i.e., postural changes, few steps—2 times/day) or using low volumes of exercise for mild-to-moderate cases (i.e., 120 min/week). A total of 97% of the 29 studies that performed statistical analyses demonstrated a significant increase in at least one parameter of functional capacity, and 96% of the 26 studies that statistically investigated the effects on the quality of life, mental health, and general state reported improvements. Yet, most of the studies were retrospective, uncontrolled, and enrolled aged people with comorbidities presented in severe forms of COVID-19. Physical activity programs, in addition to their high heterogeneity, remained poorly described in 83% of the studies and were part of a multidisciplinary program for 89% of the studies. Despite promising results, there is today a real need for prospective well-designed studies specifically assessing the effects of physical activity. In addition, it might appear relevant to propose standardized programs further considering the main characteristics of patients such as age, comorbidities, or the severity of COVID-19.
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Affiliation(s)
- Mélina Bailly
- Centre de Recherche en Nutrition Humaine (CRNH), Laboratoire des Adaptations Métaboliques à l’Exercice en Conditions Physiologiques et Pathologiques (AME2P), Unité de Formation et de Recherche (UFR) des Sciences et Techniques des Activités Physiques et Sportives (STAPS), Université Clermont Auvergne, 63000 Clermont-Ferrand, France; (M.B.); (D.T.)
| | - Léna Pélissier
- Centre de Recherche en Nutrition Humaine (CRNH), Laboratoire des Adaptations Métaboliques à l’Exercice en Conditions Physiologiques et Pathologiques (AME2P), Unité de Formation et de Recherche (UFR) des Sciences et Techniques des Activités Physiques et Sportives (STAPS), Université Clermont Auvergne, 63000 Clermont-Ferrand, France; (M.B.); (D.T.)
- Correspondence:
| | - Emmanuel Coudeyre
- Service de Médecine Physique et de Réadaptation, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Unité de Nutrition Humaine (UNH), Centre Hospitalier Universitaire (CHU) Clermont-Ferrand, Université Clermont Auvergne, 63000 Clermont-Ferrand, France;
| | - Bertrand Evrard
- Service d’Immunologie, Centre Hospitalier Universitaire (CHU) Gabriel-Montpied, 63000 Clermont-Ferrand, France;
- Micro-Environnement CellulaiRE, Immunomodulation et Nutrition (ECREIN), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Unité Mixte de Recherche (UMR) 1019 Unité de Nutrition Humaine (UNH), Université Clermont Auvergne, 63000 Clermont-Ferrand, France;
| | - Rea Bingula
- Micro-Environnement CellulaiRE, Immunomodulation et Nutrition (ECREIN), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Unité Mixte de Recherche (UMR) 1019 Unité de Nutrition Humaine (UNH), Université Clermont Auvergne, 63000 Clermont-Ferrand, France;
| | - Corinne Rochette
- Health and Territory Chair, Université Clermont Auvergne, CleRMa, 63000 Clermont-Ferrand, France; (C.R.); (L.M.)
| | - Laurent Mériade
- Health and Territory Chair, Université Clermont Auvergne, CleRMa, 63000 Clermont-Ferrand, France; (C.R.); (L.M.)
| | - Christelle Blavignac
- Centre Imagerie Cellulaire Santé, Université Clermont Auvergne, 63000 Clermont-Ferrand, France;
| | - Anne-Cécile Fournier
- Cluster Auvergne-Rhône-Alpes Innovation Innovatherm, 63000 Clermont-Ferrand, France;
| | - Yves-Jean Bignon
- U1240 Imagerie Moléculaire et Stratégies Théranostiques, Institut National de la Santé et de la Recherche Médicale (INSERM), Université Clermont Auvergne, 63000 Clermont Ferrand, France;
- Département d’Oncogénétique, Centre Jean Perrin, 63011 Clermont-Ferrand, France
| | - Fabrice Rannou
- Service de Médecine du Sport et des Explorations Fonctionnelles, Centre Hospitalier Universitaire (CHU) de Clermont-Ferrand, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Unité de Nutrition Humaine (UNH), Centre de Recherche en Nutrition Humaine (CRNH) Auvergne, Université Clermont Auvergne, 63000 Clermont-Ferrand, France; (F.R.); (M.D.)
| | - Frédéric Dutheil
- Preventive and Occupational Medicine, LaPSCo, Physiological and Psychosocial Stress, Centre National de la Recherche Scientifique (CNRS), Centre Hospitalier Universitaire (CHU) Clermont-Ferrand, Witty Fit, Université Clermont Auvergne, 63000 Clermont-Ferrand, France;
| | - David Thivel
- Centre de Recherche en Nutrition Humaine (CRNH), Laboratoire des Adaptations Métaboliques à l’Exercice en Conditions Physiologiques et Pathologiques (AME2P), Unité de Formation et de Recherche (UFR) des Sciences et Techniques des Activités Physiques et Sportives (STAPS), Université Clermont Auvergne, 63000 Clermont-Ferrand, France; (M.B.); (D.T.)
| | - Martine Duclos
- Service de Médecine du Sport et des Explorations Fonctionnelles, Centre Hospitalier Universitaire (CHU) de Clermont-Ferrand, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Unité de Nutrition Humaine (UNH), Centre de Recherche en Nutrition Humaine (CRNH) Auvergne, Université Clermont Auvergne, 63000 Clermont-Ferrand, France; (F.R.); (M.D.)
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26
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Davidsen N, Ramhøj L, Lykkebo CA, Kugathas I, Poulsen R, Rosenmai AK, Evrard B, Darde TA, Axelstad M, Bahl MI, Hansen M, Chalmel F, Licht TR, Svingen T. PFOS-induced thyroid hormone system disrupted rats display organ-specific changes in their transcriptomes. Environ Pollut 2022; 305:119340. [PMID: 35460815 DOI: 10.1016/j.envpol.2022.119340] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [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: 02/10/2022] [Revised: 04/14/2022] [Accepted: 04/18/2022] [Indexed: 06/14/2023]
Abstract
Perfluorooctanesulfonic acid (PFOS) is a persistent anthropogenic chemical that can affect the thyroid hormone system in humans and animals. In adults, thyroid hormones (THs) are regulated by the hypothalamic-pituitary-thyroid (HPT) axis, but also by organs such as the liver and potentially the gut microbiota. PFOS and other xenobiotics can therefore disrupt the TH system at various locations and through different mechanisms. To start addressing this, we exposed adult male rats to 3 mg PFOS/kg/day for 7 days and analysed effects on multiple organs and pathways simultaneously by transcriptomics. This included four primary organs involved in TH regulation, namely hypothalamus, pituitary, thyroid, and liver. To investigate a potential role of the gut microbiota in thyroid hormone regulation, two additional groups of animals were dosed with the antibiotic vancomycin (8 mg/kg/day), either with or without PFOS. PFOS exposure decreased thyroxine (T4) and triiodothyronine (T3) without affecting thyroid stimulating hormone (TSH), resembling a state of hypothyroxinemia. PFOS exposure resulted in 50 differentially expressed genes (DEGs) in the hypothalamus, 68 DEGs in the pituitary, 71 DEGs in the thyroid, and 181 DEGs in the liver. A concomitant compromised gut microbiota did not significantly change effects of PFOS exposure. Organ-specific DEGs did not align with TH regulating genes; however, genes associated with vesicle transport and neuronal signaling were affected in the hypothalamus, and phase I and phase II metabolism in the liver. This suggests that a decrease in systemic TH levels may activate the expression of factors altering trafficking, metabolism and excretion of TH. At the transcriptional level, little evidence suggests that the pituitary or thyroid gland is involved in PFOS-induced TH system disruption.
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Affiliation(s)
- Nichlas Davidsen
- National Food Institute, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark
| | - Louise Ramhøj
- National Food Institute, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark
| | - Claus Asger Lykkebo
- National Food Institute, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark
| | - Indusha Kugathas
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Rikke Poulsen
- Department of Environmental Science, Aarhus University, Roskilde, DK-4000, Denmark
| | | | - Bertrand Evrard
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | | | - Marta Axelstad
- National Food Institute, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark
| | - Martin Iain Bahl
- National Food Institute, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark
| | - Martin Hansen
- Department of Environmental Science, Aarhus University, Roskilde, DK-4000, Denmark
| | - Frederic Chalmel
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Tine Rask Licht
- National Food Institute, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark
| | - Terje Svingen
- National Food Institute, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark.
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27
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Milenkovic D, Capel F, Combaret L, Comte B, Dardevet D, Evrard B, Guillet C, Monfoulet LE, Pinel A, Polakof S, Pujos-Guillot E, Rémond D, Wittrant Y, Savary-Auzeloux I. Targeting the gut to prevent and counteract metabolic disorders and pathologies during aging. Crit Rev Food Sci Nutr 2022; 63:11185-11210. [PMID: 35730212 DOI: 10.1080/10408398.2022.2089870] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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] [Indexed: 02/07/2023]
Abstract
Impairment of gut function is one of the explanatory mechanisms of health status decline in elderly population. These impairments involve a decline in gut digestive physiology, metabolism and immune status, and associated to that, changes in composition and function of the microbiota it harbors. Continuous deteriorations are generally associated with the development of systemic dysregulations and ultimately pathologies that can worsen the initial health status of individuals. All these alterations observed at the gut level can then constitute a wide range of potential targets for development of nutritional strategies that can impact gut tissue or associated microbiota pattern. This can be key, in a preventive manner, to limit gut functionality decline, or in a curative way to help maintaining optimum nutrients bioavailability in a context on increased requirements, as frequently observed in pathological situations. The aim of this review is to give an overview on the alterations that can occur in the gut during aging and lead to the development of altered function in other tissues and organs, ultimately leading to the development of pathologies. Subsequently is discussed how nutritional strategies that target gut tissue and gut microbiota can help to avoid or delay the occurrence of aging-related pathologies.
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Affiliation(s)
- Dragan Milenkovic
- Human Nutrition Unit, UMR1019, University Clermont Auvergne, INRAE, Clermont-Ferrand, France
| | - Frédéric Capel
- Human Nutrition Unit, UMR1019, University Clermont Auvergne, INRAE, Clermont-Ferrand, France
| | - Lydie Combaret
- Human Nutrition Unit, UMR1019, University Clermont Auvergne, INRAE, Clermont-Ferrand, France
| | - Blandine Comte
- Human Nutrition Unit, UMR1019, University Clermont Auvergne, INRAE, Clermont-Ferrand, France
| | - Dominique Dardevet
- Human Nutrition Unit, UMR1019, University Clermont Auvergne, INRAE, Clermont-Ferrand, France
| | - Bertrand Evrard
- Human Nutrition Unit, UMR1019, University Clermont Auvergne, INRAE, Clermont-Ferrand, France
| | - Christelle Guillet
- Human Nutrition Unit, UMR1019, University Clermont Auvergne, INRAE, Clermont-Ferrand, France
| | | | - Alexandre Pinel
- Human Nutrition Unit, UMR1019, University Clermont Auvergne, INRAE, Clermont-Ferrand, France
| | - Sergio Polakof
- Human Nutrition Unit, UMR1019, University Clermont Auvergne, INRAE, Clermont-Ferrand, France
| | - Estelle Pujos-Guillot
- Human Nutrition Unit, UMR1019, University Clermont Auvergne, INRAE, Clermont-Ferrand, France
| | - Didier Rémond
- Human Nutrition Unit, UMR1019, University Clermont Auvergne, INRAE, Clermont-Ferrand, France
| | - Yohann Wittrant
- Human Nutrition Unit, UMR1019, University Clermont Auvergne, INRAE, Clermont-Ferrand, France
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Evrard B, Cosme J, Raveau M, Junda M, Michaud E, Bonnet B. Utility of the Basophil Activation Test Using Gly m 4, Gly m 5 and Gly m 6 Molecular Allergens for Characterizing Anaphylactic Reactions to Soy. Front Allergy 2022; 3:908435. [PMID: 35769564 PMCID: PMC9234935 DOI: 10.3389/falgy.2022.908435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 04/29/2022] [Indexed: 12/04/2022] Open
Abstract
There are two major clinically described forms of IgE-dependent soy allergy: (i) a primary dietary form, linked to sensitization against soy storage proteins Gly m 5 and Glym 6, and (ii) a form included in birch-soy syndromes linked to Gly m 4, a PR-10-like allergen. This second form sometimes causes severe systemic reactions, even anaphylaxis, especially on consuming certain forms of soy such as soymilks or smoothies. Skin prick tests and specific IgE assays against soy whole extracts lack sensitivity. Assays of anti-Gly m 4, Gly m 5 and Gly m 6 specific IgEs have been developed to overcome this obstacle, but they unfortunately lack specificity, especially for anti-Gly m 4. We hypothesized that the basophil activation test (BAT) using molecular soy allergens Gly m 4, Gly m 5 and Gly m 6 would both remedy the lack of sensitivity of other tests and offer, through its mechanistic contribution, greater specificity than the assay of anti-Gly m 4 specific IgEs. This would enable the two types of soy allergy to be separately identified. In a characteristic clinical example of PR-10-induced anaphylactic reaction after consuming soymilk, we report preliminary results of Gly m 4-exclusive positivity of BAT supporting our hypothesis. It will be necessary to confirm these results on more patients in subsequent studies, and to specify the place of the BAT in an overall diagnostic strategy. Meanwhile, soy BAT using molecular allergens is a promising diagnostic tool for soy allergy and probably also for follow-up in specific immunotherapies.
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Affiliation(s)
- Bertrand Evrard
- Service d'Immunologie, CHU Clermont-Ferrand, Clermont-Ferrand, France
- Laboratoire d'Immunologie, ECREIN, UMR 1019 Unité de Nutrition Humaine, Faculté de Médecine de Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France
- *Correspondence: Bertrand Evrard
| | - Justine Cosme
- Service d'Immunologie, CHU Clermont-Ferrand, Clermont-Ferrand, France
- Laboratoire d'Immunologie, ECREIN, UMR 1019 Unité de Nutrition Humaine, Faculté de Médecine de Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Marion Raveau
- Unité d'Allergologie Pédiatrique, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Maud Junda
- Service d'Immunologie, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Elodie Michaud
- Unité d'Allergologie Pédiatrique, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Benjamin Bonnet
- Service d'Immunologie, CHU Clermont-Ferrand, Clermont-Ferrand, France
- Laboratoire d'Immunologie, ECREIN, UMR 1019 Unité de Nutrition Humaine, Faculté de Médecine de Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France
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Lafon T, Baisse A, Simonneau Y, Goudelin M, Hani Karam H, Desvaux E, Guillot MS, Evrard B, Vignon P. Identification précoce des phénotypes cardiovasculaires chez les patients en insuffisance respiratoire aiguë au cours de la première pandémie Covid-19. Ann Fr Med Urgence 2022. [DOI: 10.3166/afmu-2022-0400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Objectif : L'objectif principal était de comparer la prévalence de la dysfonction ventriculaire gauche (VG) et/ ou droite (VD) des patients admis au service d'urgence (SU) avec une insuffisance respiratoire aiguë (IRA) secondaire ou non à une pneumopathie à Covid-19.
Méthodes : Pendant un mois, nous avons inclus (24/7) de façon prospective les patients de l'unité de Covid-19 du SU qui présentaient une IRA. Pour chaque patient, un test RT-PCR, une tomodensitométrie thoracique et une échographie cardiaque de niveau 2 et pulmonaire étaient systématiquement réalisés avant toute intervention thérapeutique. Chaque patient était classé selon les phénotypes cardiovasculaires suivants : insuffisance VG, insuffisance VD, hypovolémie ± hyperkinésie et profil hémodynamique normal.
Résultats : Parmi les 517 patients admis pendant la période d'étude, 78 présentaient une IRA (15 %) et 62 ont bénéficié d'une échocardiographie de niveau 2 (âge : 73 ± 14 ans ; SpO2 : 90 ± 4 % ; lactate : 2,1 ± 1,3 mmol/l). Le diagnostic de la Covid-19 a été établi pour 22 patients (35 %). L'insuffisance VG (15 [38 %] vs 2 [9 %] ; p = 0,016) et celle VD (12 [30 %] vs 1 [5 %] ; p = 0,018) étaient plus souvent observées dans le groupe témoin que chez les patients ayant une pneumopathie à Covid-19. Inversement, les patients Covid-19 avaient plus fréquemment un profil hémodynamique normal ou une hypovolémie associée ou non à une vasoplégie (20 [91 %] vs 21 [53 %] ; p = 0,002). La mortalité intrahospitalière était de 18 % ( n = 11). Tous les patients atteints de la Covid-19 présentant une insuffisance VG et/ou VD précoce sont décédés pendant leur hospitalisation.
Conclusions : La dysfonction VG et celle VD étaient plus fréquentes chez les patients non atteints de la Covid-19, alors que les patients atteints de Covid-19 avaient un phénotype cardiovasculaire normal ou hypovolémique.
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Bailly M, Evrard B, Coudeyre E, Rochette C, Meriade L, Blavignac C, Fournier AC, Bignon YJ, Dutheil F, Duclos M, Thivel D. Health management of patients with COVID-19: is there a room for hydrotherapeutic approaches? Int J Biometeorol 2022; 66:1031-1038. [PMID: 35079866 PMCID: PMC8789204 DOI: 10.1007/s00484-022-02246-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 01/18/2022] [Accepted: 01/19/2022] [Indexed: 05/05/2023]
Abstract
With highly variable types of coronavirus disease 2019 (COVID-19) symptoms in both severity and duration, there is today an important need for early, individualized, and multidisciplinary strategies of rehabilitation. Some patients present persistent affections of the respiratory function, digestive system, cardiovascular function, locomotor system, mental health, sleep, nervous system, immune system, taste, smell, metabolism, inflammation, and skin. In this context, we highlight here that hydrothermal centers should be considered today as medically and economically relevant alternatives to face the urgent need for interventions among COVID-19 patients. We raise the potential benefits of hydrotherapy programs already existing which combine alternative medicine with respiratory care, physical activity, nutritional advice, psychological support, and physiotherapy, in relaxing environments and under medical supervision. Beyond the virtues of thermal waters, many studies reported medical benefits of natural mineral waters through compressing, buoyancy, resistance, temperature changes, hydrostatic pressure, inhalations, or drinking. Thermal institutions might offer individualized follow-up helping to unclog hospitals while ensuring the continuity of health care for the different clinical manifestations of COVID-19 in both post-acute and chronic COVID-19 patients. Our present review underlines the need to further explore the medical effectiveness, clinical and territorial feasibility, and medico-economic impacts of the implementation of post-COVID-19 patient management in hydrotherapeutic establishments.
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Affiliation(s)
- Mélina Bailly
- Université Clermont Auvergne, CRNH, AME2P, F-63000 Clermont-Ferrand, France
| | - Bertrand Evrard
- CHU Clermont-Ferrand, Service d’Immunologie, CHU Gabriel-Montpied, Clermont-Ferrand, France
- Université Clermont Auvergne, INRA, UMR 1019, Clermont-Ferrand, France
| | - Emmanuel Coudeyre
- Service de Médecine Physique Et de Réadaptation, INRAE, UNH, CHU Clermont-Ferrand, Université Clermont Auvergne, 63000 Clermont-Ferrand, France
| | - Corinne Rochette
- Université Clermont Auvergne, Health and Terrirory Chair, CleRMa, 63000 Clermont-Ferrand, France
| | - Laurent Meriade
- Université Clermont Auvergne, Health and Terrirory Chair, CleRMa, 63000 Clermont-Ferrand, France
| | - Christelle Blavignac
- Centre Imagerie Cellulaire Santé, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Anne-Cécile Fournier
- Cluster Auvergne-Rhône-Alpes Innovation Innovatherm, 63000 Clermont-Ferrand, France
| | - Yves-Jean Bignon
- Université Clermont Auvergne, INSERM, U1240 Imagerie Moléculaire et Stratégies Théranostiques, Clermont-Ferrand, France
- Département d’Oncogénétique, Centre Jean Perrin, Clermont-Ferrand, France
| | - Frédéric Dutheil
- Preventive and Occupational Medicine, Université Clermont Auvergne, CNRS, LaPSCo, Physiological and Psychosocial Stress, CHU Clermont-Ferrand, University Hospital of Clermont-Ferrand, Witty Fit, 63000 Clermont-Ferrand, France
| | - Martine Duclos
- Service de Médecine du Sport Et Des Explorations Fonctionnelles, CHU de Clermont-Ferrand, Université Clermont Auvergne, INRA, UNH, Unité de Nutrition Humaine, CRNH Auvergne, Clermont-Ferrand, France
| | - David Thivel
- Université Clermont Auvergne, CRNH, AME2P, F-63000 Clermont-Ferrand, France
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Imran M, Chalmel F, Sergent O, Evrard B, Le Mentec H, Legrand A, Dupont A, Bescher M, Bucher S, Fromenty B, Huc L, Sparfel L, Lagadic-Gossmann D, Podechard N. Transcriptomic analysis in zebrafish larvae identifies iron-dependent mitochondrial dysfunction as a possible key event of NAFLD progression induced by benzo[a]pyrene/ethanol co-exposure. Cell Biol Toxicol 2022:10.1007/s10565-022-09706-4. [PMID: 35412187 DOI: 10.1007/s10565-022-09706-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 02/28/2022] [Indexed: 11/02/2022]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a worldwide epidemic for which environmental contaminants are increasingly recognized as important etiological factors. Among them, the combination of benzo[a]pyrene (B[a]P), a potent environmental carcinogen, with ethanol, was shown to induce the transition of steatosis toward steatohepatitis. However, the underlying mechanisms involved remain to be deciphered. In this context, we used high-fat diet fed zebrafish model, in which we previously observed progression of steatosis to a steatohepatitis-like state following a 7-day-co-exposure to 43 mM ethanol and 25 nM B[a]P. Transcriptomic analysis highlighted the potent role of mitochondrial dysfunction, alterations in heme and iron homeostasis, involvement of aryl hydrocarbon receptor (AhR) signaling, and oxidative stress. Most of these mRNA dysregulations were validated by RT-qPCR. Moreover, similar changes were observed using a human in vitro hepatocyte model, HepaRG cells. The mitochondria structural and functional alterations were confirmed by transmission electronic microscopy and Seahorse technology, respectively. Involvement of AhR signaling was evidenced by using in vivo an AhR antagonist, CH223191, and in vitro in AhR-knock-out HepaRG cells. Furthermore, as co-exposure was found to increase the levels of both heme and hemin, we investigated if mitochondrial iron could induce oxidative stress. We found that mitochondrial labile iron content was raised in toxicant-exposed larvae. This increase was prevented by the iron chelator, deferoxamine, which also inhibited liver co-exposure toxicity. Overall, these results suggest that the increase in mitochondrial iron content induced by B[a]P/ethanol co-exposure causes mitochondrial dysfunction that contributes to the pathological progression of NAFLD.
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Affiliation(s)
- Muhammad Imran
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé environnement et travail) - UMR_S 1085, F-35000, Rennes, France.,Iqra University, Karachi, Pakistan
| | - Frédéric Chalmel
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé environnement et travail) - UMR_S 1085, F-35000, Rennes, France
| | - Odile Sergent
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé environnement et travail) - UMR_S 1085, F-35000, Rennes, France
| | - Bertrand Evrard
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé environnement et travail) - UMR_S 1085, F-35000, Rennes, France
| | - Hélène Le Mentec
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé environnement et travail) - UMR_S 1085, F-35000, Rennes, France
| | - Antoine Legrand
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé environnement et travail) - UMR_S 1085, F-35000, Rennes, France
| | - Aurélien Dupont
- Univ Rennes, Biosit - UMS 3480, US_S 018, F-35000, Rennes, France
| | - Maëlle Bescher
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé environnement et travail) - UMR_S 1085, F-35000, Rennes, France
| | - Simon Bucher
- Univ Rennes, Inserm, Inrae, Institut NUMECAN (Nutrition Metabolisms and Cancer)-UMR_S 13 1241, and UMR_A 1341, 35000, Rennes, France
| | - Bernard Fromenty
- Univ Rennes, Inserm, Inrae, Institut NUMECAN (Nutrition Metabolisms and Cancer)-UMR_S 13 1241, and UMR_A 1341, 35000, Rennes, France
| | - Laurence Huc
- Université de Toulouse, Inrae, ENVT, INP-Purpan, UPS, Toxalim (Research Centre in Food Toxicology), 31027, Toulouse, France
| | - Lydie Sparfel
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé environnement et travail) - UMR_S 1085, F-35000, Rennes, France
| | - Dominique Lagadic-Gossmann
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé environnement et travail) - UMR_S 1085, F-35000, Rennes, France
| | - Normand Podechard
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé environnement et travail) - UMR_S 1085, F-35000, Rennes, France.
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Bonnet B, Chabrolles H, Archimbaud C, Brebion A, Cosme J, Dutheil F, Lambert C, Junda M, Mirand A, Ollier A, Pereira B, Regagnon C, Vidal M, Evrard B, Henquell C. Decline of Humoral and Cellular Immune Responses Against SARS-CoV-2 6 Months After Full BNT162b2 Vaccination in Hospital Healthcare Workers. Front Immunol 2022; 13:842912. [PMID: 35309363 PMCID: PMC8926062 DOI: 10.3389/fimmu.2022.842912] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 02/10/2022] [Indexed: 12/18/2022] Open
Abstract
Clinical trials and real-world evidence on COVID-19 vaccines have shown their effectiveness against severe disease and death but the durability of protection remains unknown. We analysed the humoral and T-cell immune responses in 110 healthcare workers (HCWs) vaccinated according to the manufacturer's recommended schedule of dose 2 three weeks after dose 1 from a prospective on-going cohort in early 2021, 3 and 6 months after full vaccination with the BNT162b2 mRNA vaccine. Anti-RBD IgG titres were lower in HCWs over 60 years old 3 months after the second dose (p=0.03) and declined in all the subjects between 3 and 6 months with a median percentage change of -58.5%, irrespective of age and baseline comorbidities. Specific T-cell response measured by IGRA declined over time by at least 42% (median) in 91 HCWs and increased by 33% (median) in 17 others. Six HCWs had a negative T-cell response at 6 months. Ongoing follow-up should provide correlates of long-term protection according to the different immune response profiles observed. COVIDIM study was registered under the number NCT04896788 on clinicaltrials.gov.
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Affiliation(s)
- Benjamin Bonnet
- Clermont-Ferrand University Hospital (CHU Clermont Ferrand), Immunology Department, Clermont-Ferrand, France
- Clermont Auvergne University, UMR UNH, ECREIN, Clermont-Ferrand, France
| | - Hélène Chabrolles
- Clermont-Ferrand University Hospital (CHU Clermont Ferrand), 3IHP, Virology Department, Clermont-Ferrand, France
- Clermont Auvergne University, CNRS UMR, LMGE, Clermont-Ferrand, France
| | - Christine Archimbaud
- Clermont-Ferrand University Hospital (CHU Clermont Ferrand), 3IHP, Virology Department, Clermont-Ferrand, France
- Clermont Auvergne University, CNRS UMR, LMGE, Clermont-Ferrand, France
| | - Amélie Brebion
- Clermont-Ferrand University Hospital (CHU Clermont Ferrand), 3IHP, Virology Department, Clermont-Ferrand, France
| | - Justine Cosme
- Clermont-Ferrand University Hospital (CHU Clermont Ferrand), Immunology Department, Clermont-Ferrand, France
| | - Frédéric Dutheil
- Clermont-Ferrand University Hospital (CHU Clermont Ferrand), Preventive and Occupational Medicine, Clermont-Ferrand, France
- Clermont Auvergne University, CNRS, LaPSCo Physiological and Psychosocial Stress, Clermont-Ferrand, France
| | - Céline Lambert
- Clermont-Ferrand University Hospital (CHU Clermont Ferrand), Clinical Research and Innovation Direction (DRCI), Biostatistics Unit, Clermont-Ferrand, France
| | - Maud Junda
- Clermont-Ferrand University Hospital (CHU Clermont Ferrand), Immunology Department, Clermont-Ferrand, France
| | - Audrey Mirand
- Clermont-Ferrand University Hospital (CHU Clermont Ferrand), 3IHP, Virology Department, Clermont-Ferrand, France
- Clermont Auvergne University, CNRS UMR, LMGE, Clermont-Ferrand, France
| | - Amandine Ollier
- Clermont-Ferrand University Hospital (CHU Clermont Ferrand) 3 IHP, Clinical Research and Innovation Direction, Clermont-Ferrand, France
| | - Bruno Pereira
- Clermont-Ferrand University Hospital (CHU Clermont Ferrand), Clinical Research and Innovation Direction (DRCI), Biostatistics Unit, Clermont-Ferrand, France
| | - Christel Regagnon
- Clermont-Ferrand University Hospital (CHU Clermont Ferrand), 3IHP, Virology Department, Clermont-Ferrand, France
| | - Magali Vidal
- Clermont-Ferrand University Hospital (CHU Clermont Ferrand), 3 IHP, Infectious Diseases Department, Clermont-Ferrand, France
| | - Bertrand Evrard
- Clermont-Ferrand University Hospital (CHU Clermont Ferrand), Immunology Department, Clermont-Ferrand, France
- Clermont Auvergne University, UMR UNH, ECREIN, Clermont-Ferrand, France
| | - Cécile Henquell
- Clermont-Ferrand University Hospital (CHU Clermont Ferrand), 3IHP, Virology Department, Clermont-Ferrand, France
- Clermont Auvergne University, CNRS UMR, LMGE, Clermont-Ferrand, France
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Pascal B, Evrard B, Merlin E, Egron C, Bonnet B, Michaud E. Drug-induced enterocolitis syndrome with paracetamol (acetaminophen) in a 12-month-old boy. Pediatr Allergy Immunol 2022; 33:e13755. [PMID: 35338732 DOI: 10.1111/pai.13755] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 02/14/2022] [Accepted: 02/18/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Brice Pascal
- Immunology Department, CHU Clermont-Ferrand, Clermont-Ferrand, France.,Pediatric Department, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Bertrand Evrard
- Immunology Department, CHU Clermont-Ferrand, Clermont-Ferrand, France.,Clermont Auvergne University, Clermont-Ferrand, France
| | - Etienne Merlin
- Pediatric Department, CHU Clermont-Ferrand, Clermont-Ferrand, France.,Clermont Auvergne University, Clermont-Ferrand, France
| | - Carole Egron
- Pediatric Department, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Benjamin Bonnet
- Immunology Department, CHU Clermont-Ferrand, Clermont-Ferrand, France.,Clermont Auvergne University, Clermont-Ferrand, France
| | - Elodie Michaud
- Pediatric Department, CHU Clermont-Ferrand, Clermont-Ferrand, France
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Bonnet B, Chabrolles H, Archimbaud C, Brebion A, Godignon M, Dutheil F, Lambert C, Cosme J, Mirand A, Ollier A, Pereira B, Regagnon C, Vidal M, Evrard B, Henquell C. Comparative T and B immune responses of four different anti-COVID-19 vaccine strategies 6 months after vaccination. J Infect 2022; 84:e45-e47. [PMID: 35278482 PMCID: PMC8905884 DOI: 10.1016/j.jinf.2022.03.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 03/05/2022] [Indexed: 11/25/2022]
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Koch N, Jennotte O, Ziemons E, Boussard G, Lechanteur A, Evrard B. Influence of API physico-chemical properties on amorphization capacity of several mesoporous silica loading methods. Int J Pharm 2021; 613:121372. [PMID: 34906649 DOI: 10.1016/j.ijpharm.2021.121372] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 12/06/2021] [Accepted: 12/07/2021] [Indexed: 12/15/2022]
Abstract
The objective of this work was to evaluate the impact of physico-chemical properties of pharmaceutical drugs on the optimal mesoporous silica loading methods. Indeed, a good combination between drug and loading process has to be studied to promote the deepest penetration of the drug inside the mesopores, allowing high drug amorphization. Six molecules, namely lidocaine and its hydrochloride, ibuprofen, ketoprofen, artemether and miconazole, with different physico-chemical properties (the ionized character, the acid-base character, the HBDA number, the solubility in sc-CO2 and the behavior under subcritical CO2) were used to produce drug-silica formulations. Different impregnation processes (physical mixing, melting, wetting, sc-CO2 and subcritical CO2 impregnations) have been compared for each drug, in terms of drug recovery and crystallinity. Formulations showed drug percentage close to 100% except for supercritical soluble drug formulations impregnated by using sc-CO2. However, the basic drug character provided less or no drug loss during impregnation. Processing insoluble sc-CO2 molecule under supercritical conditions led to less crystallinity than the correspondent physical mixture suggesting an interesting repulsive effect that forces the drug penetration within the mesopores. Besides, it has been also highlighted that the HBDA number is not sufficient to predict the final drug loading. Melting methods have high interest considering the drugs tested and subcritical CO2 could increase the loading, especially for drugs with high molten viscosity. This study showed that a plethora of loading methods can be used to provide high drug loaded MS formulations with a wide choice of equipment.
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Affiliation(s)
- N Koch
- University of Liège, Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, Avenue Hippocrate, B36 (+2) 4000 Liège, Belgium.
| | - O Jennotte
- University of Liège, Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, Avenue Hippocrate, B36 (+2) 4000 Liège, Belgium
| | - E Ziemons
- University of Liège, Laboratory of Pharmaceutical Analytical Chemistry Laboratory, Vibra-Santé Hub, CIRM, Avenue Hippocrate, B36 (+2) 4000 Liège, Belgium
| | - G Boussard
- University of Liège, Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, Avenue Hippocrate, B36 (+2) 4000 Liège, Belgium
| | - A Lechanteur
- University of Liège, Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, Avenue Hippocrate, B36 (+2) 4000 Liège, Belgium
| | - B Evrard
- University of Liège, Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, Avenue Hippocrate, B36 (+2) 4000 Liège, Belgium
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Bonnet B, Cosme J, Dupuis C, Coupez E, Adda M, Calvet L, Fabre L, Saint-Sardos P, Bereiziat M, Vidal M, Laurichesse H, Souweine B, Evrard B. Severe COVID-19 is characterized by the co-occurrence of moderate cytokine inflammation and severe monocyte dysregulation. EBioMedicine 2021; 73:103622. [PMID: 34678611 PMCID: PMC8526358 DOI: 10.1016/j.ebiom.2021.103622] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [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: 02/27/2021] [Revised: 09/10/2021] [Accepted: 09/28/2021] [Indexed: 02/07/2023] Open
Abstract
Background SARS-CoV-2 has been responsible for considerable mortality worldwide, owing in particular to pulmonary failures such as ARDS, but also to other visceral failures and secondary infections. Recent progress in the characterization of the immunological mechanisms that result in severe organ injury led to the emergence of two successive hypotheses simultaneously tested here: hyperinflammation with cytokine storm syndrome or dysregulation of protective immunity resulting in immunosuppression and unrestrained viral dissemination. Methods In a prospective observational monocentric study of 134 patients, we analysed a panel of plasma inflammatory and anti-inflammatory cytokines and measured monocyte dysregulation via their membrane expression of HLA-DR. We first compared the results of patients with moderate forms hospitalized in an infectious disease unit with those of patients with severe forms hospitalized in an intensive care unit. In the latter group of patients, we then analysed the differences between the surviving and non-surviving groups and between the groups with or without secondary infections. Findings Higher blood IL-6 levels, lower quantitative expression of HLA-DR on blood monocytes and higher IL-6/mHLA-DR ratios were statistically associated with the risk of severe forms of the disease and among the latter with death and the early onset of secondary infections. Interpretation The unique immunological profile in patients with severe COVID-19 corresponds to a moderate cytokine inflammation associated with severe monocyte dysregulation. Individuals with major CSS were rare in our cohort of hospitalized patients, especially since the use of corticosteroids, but formed a very severe subgroup of the disease. Funding None.
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Affiliation(s)
- Benjamin Bonnet
- Service d'Immunologie, CHU Gabriel-Montpied, Clermont-Ferrand, France; Laboratoire d'Immunologie, ECREIN, UMR1019 UNH, UFR Médecine de Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Justine Cosme
- Service d'Immunologie, CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Claire Dupuis
- Service de Médecine Intensive et Réanimation, CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Elisabeth Coupez
- Service de Médecine Intensive et Réanimation, CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Mireille Adda
- Service de Médecine Intensive et Réanimation, CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Laure Calvet
- Service de Médecine Intensive et Réanimation, CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Laurie Fabre
- Service d'Immunologie, CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Pierre Saint-Sardos
- Laboratoire de Bactériologie, CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Marine Bereiziat
- Service de Médecine Intensive et Réanimation, CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Magali Vidal
- Service de Maladies Infectieuses et Tropicales, CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Henri Laurichesse
- Service de Maladies Infectieuses et Tropicales, CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Bertrand Souweine
- Service de Médecine Intensive et Réanimation, CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Bertrand Evrard
- Service d'Immunologie, CHU Gabriel-Montpied, Clermont-Ferrand, France; Laboratoire d'Immunologie, ECREIN, UMR1019 UNH, UFR Médecine de Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France.
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Abstract
[Figure: see text].
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Affiliation(s)
- Bertrand Evrard
- Laboratoire Kastler Brossel, Collège de France, CNRS, ENS-PSL University, Sorbonne Université, 75005 Paris, France
| | - An Qu
- Laboratoire Kastler Brossel, Collège de France, CNRS, ENS-PSL University, Sorbonne Université, 75005 Paris, France
| | - Jean Dalibard
- Laboratoire Kastler Brossel, Collège de France, CNRS, ENS-PSL University, Sorbonne Université, 75005 Paris, France
| | - Fabrice Gerbier
- Laboratoire Kastler Brossel, Collège de France, CNRS, ENS-PSL University, Sorbonne Université, 75005 Paris, France
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Neyroud AS, Rolland A, Evrard B, Alary N, Dejucq-Rainsford N, Jégou B, Bujan L, Ravel C, Chalmel F. P–055 Methylation dynamics of the sperm epigenome after chemotherapy: a case study. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Study question
What is the evolution of the sperm epigenome after chemotherapy in a patient with testicular cancer (TC)?
Summary answer
These new data on epigenetic recovery profil after TC are useful tools for counseling and reassuring these patients.
What is known already
An important issue for young men affected TC is how TC and its treatment will affect, transiently or permanently, their future reproductive health. The consequences of cancer treatment on the sperm epigenome during the recovery periods are topical issues of ascendant significance as epigenetic modifications to the paternal genome may have deleterious effects on the offspring.
Study design, size, duration
Here we report the epigenomic profiling of frozen sperm from a TC patient before and after the treatment at different time points (6, 9, 12 and 24 months) by using RRBS analysis (Reduced representation bisulfite sequencing method).
Participants/materials, setting, methods
A testicular tumor (testicular germ cell tumor) was diagnosed in a 30 years old patient. A cryopreservation of spermatozoa was proposed before treatment.Semen samples were obtained 2 times before treatment and 4 times after treatment (6, 9, 12 and 24 months following the initiation of treatment).
Main results and the role of chance
Upon collection, sampling after chemotherapy ranged from 0,6 to 4,2 million per sperm straw between 6 and 24 months after the treatment, always increasing.
In order to capture the direct effect of the treatment on the methylation changes, the DMR detection has been operated between pre-chemotherapy samples (pair-wise) and the time point of 6 months. Among the 179 hqDMRs, 74 are differentially methylated between the PreCT and PostCT6m samples (16 hyper- and 68 hypo-methylated) associated with 49 DMGs (15 hyper- and 34 hypo-methylated).
We further sub-clustered the 74 hqDMRs between PreCT and PostCT6m into 6 patterns, 3 hyper- and 3 hypo-methylated. Briefly, patterns P1 and P4 include hqDMRs that quickly get back to their pre-treatment methylation status just after 9th months onwards. Patterns P2 and P5 include hqDMRs that slowly get back to their pre-treatment methylation status between 12 and 24 months after treatment. Patterns P3 and P6 include hqDMRs that remain hyper- or hypo-methylated even after 24 months.
We have intersected the genes (DMGs) associated with the detected hqDMRs with those known to be important or expressed during embryogenesis. We thus detected that 7 hyper-methylated and 6 hypomethylated DMGs were involved (or expressed) during embryonic / fetal development.
Limitations, reasons for caution
This study involves a single patient. As the patient made no major changes in his personal way of life, we hypothesized that sperm parameter variations may be attributable to the BEP treatment.
Wider implications of the findings: The altered methylated status of those DMGs important for early development might modify their expression pattern and thus affect their function during key stages of embryogenesis leading to potential developmental disorders. It is important to notice that among the 110 DMGs none of them correspond to known imprinted genes.
Trial registration number
Not applicable
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Affiliation(s)
- A S Neyroud
- CHU de Rennes, Biology of reproduction, rennes, France
| | - A Rolland
- Univ Rennes- Inserm- EHESP- Irset Institut de recherche en santé- environnement et travail - UMR_S 1085- F–35000 Rennes- France., Inserm, Rennes, France
| | - B Evrard
- Univ Rennes- Inserm- EHESP- Irset Institut de recherche en santé- environnement et travail - UMR_S 1085- F–35000 Rennes- France., Inserm, Rennes, France
| | - N Alary
- Univ Rennes- Inserm- EHESP- Irset Institut de recherche en santé- environnement et travail - UMR_S 1085- F–35000 Rennes- France., Inserm, Rennes, France
| | - N Dejucq-Rainsford
- Univ Rennes- Inserm- EHESP- Irset Institut de recherche en santé- environnement et travail - UMR_S 1085- F–35000 Rennes- France., Inserm, Rennes, France
| | - B Jégou
- Univ Rennes- Inserm- EHESP- Irset Institut de recherche en santé- environnement et travail - UMR_S 1085- F–35000 Rennes- France., Inserm, Rennes, France
| | - L Bujan
- CHU de Toulouse, Biology of reproduction, Toulouse, France
| | - C Ravel
- CHU de Rennes, Biology of reproduction, rennes, France
| | - F Chalmel
- Univ Rennes- Inserm- EHESP- Irset Institut de recherche en santé- environnement et travail - UMR_S 1085- F–35000 Rennes- France., Inserm, Rennes, France
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Lecluze E, Rolland AD, Filis P, Evrard B, Leverrier-Penna S, Maamar MB, Coiffec I, Lavoué V, Fowler PA, Mazaud-Guittot S, Jégou B, Chalmel F. Dynamics of the transcriptional landscape during human fetal testis and ovary development. Hum Reprod 2021; 35:1099-1119. [PMID: 32412604 DOI: 10.1093/humrep/deaa041] [Citation(s) in RCA: 12] [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: 07/25/2019] [Revised: 02/10/2020] [Indexed: 12/17/2022] Open
Abstract
STUDY QUESTION Which transcriptional program triggers sex differentiation in bipotential gonads and downstream cellular events governing fetal testis and ovary development in humans? SUMMARY ANSWER The characterization of a dynamically regulated protein-coding and non-coding transcriptional landscape in developing human gonads of both sexes highlights a large number of potential key regulators that show an early sexually dimorphic expression pattern. WHAT IS KNOWN ALREADY Gonadal sex differentiation is orchestrated by a sexually dimorphic gene expression program in XX and XY developing fetal gonads. A comprehensive characterization of its non-coding counterpart offers promising perspectives for deciphering the molecular events underpinning gonad development and for a complete understanding of the etiology of disorders of sex development in humans. STUDY DESIGN, SIZE, DURATION To further investigate the protein-coding and non-coding transcriptional landscape during gonad differentiation, we used RNA-sequencing (RNA-seq) and characterized the RNA content of human fetal testis (N = 24) and ovaries (N = 24) from 6 to 17 postconceptional week (PCW), a key period in sex determination and gonad development. PARTICIPANTS/MATERIALS, SETTING, METHODS First trimester fetuses (6-12 PCW) and second trimester fetuses (13-14 and 17 PCW) were obtained from legally induced normally progressing terminations of pregnancy. Total RNA was extracted from whole human fetal gonads and sequenced as paired-end 2 × 50 base reads. Resulting sequences were mapped to the human genome, allowing for the assembly and quantification of corresponding transcripts. MAIN RESULTS AND THE ROLE OF CHANCE This RNA-seq analysis of human fetal testes and ovaries at seven key developmental stages led to the reconstruction of 22 080 transcripts differentially expressed during testicular and/or ovarian development. In addition to 8935 transcripts displaying sex-independent differential expression during gonad development, the comparison of testes and ovaries enabled the discrimination of 13 145 transcripts that show a sexually dimorphic expression profile. The latter include 1479 transcripts differentially expressed as early as 6 PCW, including 39 transcription factors, 40 long non-coding RNAs and 20 novel genes. Despite the use of stringent filtration criteria (expression cut-off of at least 1 fragment per kilobase of exon model per million reads mapped, fold change of at least 2 and false discovery rate adjusted P values of less than <1%), the possibility of assembly artifacts and of false-positive differentially expressed transcripts cannot be fully ruled out. LARGE-SCALE DATA Raw data files (fastq) and a searchable table (.xlss) containing information on genomic features and expression data for all refined transcripts have been submitted to the NCBI GEO under accession number GSE116278. LIMITATIONS, REASONS FOR CAUTION The intrinsic nature of this bulk analysis, i.e. the sequencing of transcripts from whole gonads, does not allow direct identification of the cellular origin(s) of the transcripts characterized. Potential cellular dilution effects (e.g. as a result of distinct proliferation rates in XX and XY gonads) may account for a few of the expression profiles identified as being sexually dimorphic. Finally, transcriptome alterations that would result from exposure to pre-abortive drugs cannot be completely excluded. Although we demonstrated the high quality of the sorted cell populations used for experimental validations using quantitative RT-PCR, it cannot be totally excluded that some germline expression may correspond to cell contamination by, for example, macrophages. WIDER IMPLICATIONS OF THE FINDINGS For the first time, this study has led to the identification of 1000 protein-coding and non-coding candidate genes showing an early, sexually dimorphic, expression pattern that have not previously been associated with sex differentiation. Collectively, these results increase our understanding of gonad development in humans, and contribute significantly to the identification of new candidate genes involved in fetal gonad differentiation. The results also provide a unique resource that may improve our understanding of the fetal origin of testicular and ovarian dysgenesis syndromes, including cryptorchidism and testicular cancers. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by the French National Institute of Health and Medical Research (Inserm), the University of Rennes 1, the French School of Public Health (EHESP), the Swiss National Science Foundation [SNF n° CRS115_171007 to B.J.], the French National Research Agency [ANR n° 16-CE14-0017-02 and n° 18-CE14-0038-02 to F.C.], the Medical Research Council [MR/L010011/1 to P.A.F.] and the European Community's Seventh Framework Programme (FP7/2007-2013) [under grant agreement no 212885 to P.A.F.] and from the European Union's Horizon 2020 Research and Innovation Programme [under grant agreement no 825100 to P.A.F. and S.M.G.]. There are no competing interests related to this study.
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Affiliation(s)
- Estelle Lecluze
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Antoine D Rolland
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Panagiotis Filis
- Institute of Medical Sciences, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK
| | - Bertrand Evrard
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Sabrina Leverrier-Penna
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France.,Univ Poitiers, STIM, CNRS ERL7003, Poitiers Cedex 9, CNRS ERL7003, France
| | - Millissia Ben Maamar
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Isabelle Coiffec
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Vincent Lavoué
- Service Gynécologie et Obstétrique, CHU Rennes, F-35000 Rennes, France
| | - Paul A Fowler
- Institute of Medical Sciences, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK
| | - Séverine Mazaud-Guittot
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Bernard Jégou
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Frédéric Chalmel
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
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Dagher J, Brunot A, Evrard B, Kammerer-Jacquet SF, Beaumont M, Cornevin L, Derquin F, Verhoest G, Bensalah K, Lespagnol A, Dugay F, Belaud-Rotureau MA, Chalmel F, Rioux-Leclercq N. Multiple metastatic clones assessed by an integrative multiomics strategy in clear cell renal carcinoma: a case study. J Clin Pathol 2021; 75:426-430. [PMID: 33766955 DOI: 10.1136/jclinpath-2020-207326] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/17/2021] [Accepted: 02/22/2021] [Indexed: 11/03/2022]
Abstract
The dynamics of metastatic evolution in clear cell renal cell carcinoma (ccRCC) are complex. We report a case study where tumour heterogeneity resulting from clonal evolution is a frequent feature and could play a role in metastatic dissemination.We used an integrative multiomics strategy combining genomic and transcriptomic data to classify fourteen specimens from spatially different areas of a kidney tumour and three non-primary sites including a vein thrombus and two adrenal metastases.All sites were heterogeneous and polyclonal, each tumour site containing two different aggressive subclonal populations, with differentially expressed genes implicated in distinct biological functions. These are rare primary metastatic samples prior to any medical treatment, where we showed a multiple metastatic seeding of two subclonal populations.Multiple interdependent lineages could be the source of metastatic heterogeneity in ccRCC. By sampling metastases, patients with resistance to therapies could benefit a combination of targeted therapies based on more than one aggressive clone.
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Affiliation(s)
- Julien Dagher
- Univ Rennes, Inserm, EHESP, Irset - UMR_S1085, F-35000, Rennes 1 University, Rennes, Bretagne, France.,Department of Pathology, University Hospital, Rennes, Bretagne, France
| | - Angelique Brunot
- Univ Rennes, Inserm, EHESP, Irset - UMR_S1085, F-35000, Rennes 1 University, Rennes, Bretagne, France.,Department of Oncology, University Hospital of Rennes, Rennes, France
| | - Bertrand Evrard
- Univ Rennes, Inserm, EHESP, Irset - UMR_S1085, F-35000, Rennes 1 University, Rennes, Bretagne, France
| | | | - Marion Beaumont
- Department of Cytogenetics and Cell Biology, CHU de Rennes, Rennes, France
| | - Laurence Cornevin
- Department of Cytogenetics and Cell Biology, CHU de Rennes, Rennes, France
| | - Fanny Derquin
- Department of Oncology, University Hospital of Rennes, Rennes, France
| | - Gregory Verhoest
- Department of Urology, University Hospital of Rennes, Rennes, France
| | - Karim Bensalah
- Department of Urology, University Hospital of Rennes, Rennes, France
| | | | - Frederic Dugay
- Department of Cytogenetics and Cell Biology, CHU de Rennes, Rennes, France
| | - Marc-Antoine Belaud-Rotureau
- Univ Rennes, Inserm, EHESP, Irset - UMR_S1085, F-35000, Rennes 1 University, Rennes, Bretagne, France.,Department of Cytogenetics and Cell Biology, CHU de Rennes, Rennes, France
| | - Frédéric Chalmel
- Univ Rennes, Inserm, EHESP, Irset - UMR_S1085, F-35000, Rennes 1 University, Rennes, Bretagne, France
| | - Nathalie Rioux-Leclercq
- Univ Rennes, Inserm, EHESP, Irset - UMR_S1085, F-35000, Rennes 1 University, Rennes, Bretagne, France.,Department of Pathology, University Hospital, Rennes, Bretagne, France
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Ramskov Tetzlaff CN, Ramhøj L, Lardenois A, Axelstad M, Evrard B, Chalmel F, Taxvig C, Svingen T. Adult female rats perinatally exposed to perfluorohexane sulfonate (PFHxS) and a mixture of endocrine disruptors display increased body/fat weights without a transcriptional footprint in fat cells. Toxicol Lett 2021; 339:78-87. [DOI: 10.1016/j.toxlet.2020.12.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 12/22/2020] [Accepted: 12/26/2020] [Indexed: 12/11/2022]
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Evrard B, Qu A, Dalibard J, Gerbier F. From Many-Body Oscillations to Thermalization in an Isolated Spinor Gas. Phys Rev Lett 2021; 126:063401. [PMID: 33635710 DOI: 10.1103/physrevlett.126.063401] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 01/13/2021] [Indexed: 06/12/2023]
Abstract
The dynamics of a many-body system can take many forms, from a purely reversible evolution to fast thermalization. Here we show experimentally and numerically that an assembly of spin-1 atoms all in the same spatial mode allows one to explore this wide variety of behaviors. When the system can be described by a Bogoliubov analysis, the relevant energy spectrum is linear and leads to undamped oscillations of many-body observables. Outside this regime, the nonlinearity of the spectrum leads to irreversibility, characterized by a universal behavior. When the integrability of the Hamiltonian is broken, a chaotic dynamics emerges and leads to thermalization, in agreement with the eigenstate thermalization hypothesis paradigm.
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Affiliation(s)
- Bertrand Evrard
- Laboratoire Kastler Brossel, Collège de France, CNRS, ENS-PSL Research University, Sorbonne Université, 11 Place Marcelin Berthelot, 75005 Paris, France
| | - An Qu
- Laboratoire Kastler Brossel, Collège de France, CNRS, ENS-PSL Research University, Sorbonne Université, 11 Place Marcelin Berthelot, 75005 Paris, France
| | - Jean Dalibard
- Laboratoire Kastler Brossel, Collège de France, CNRS, ENS-PSL Research University, Sorbonne Université, 11 Place Marcelin Berthelot, 75005 Paris, France
| | - Fabrice Gerbier
- Laboratoire Kastler Brossel, Collège de France, CNRS, ENS-PSL Research University, Sorbonne Université, 11 Place Marcelin Berthelot, 75005 Paris, France
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Draskau MK, Lardenois A, Evrard B, Boberg J, Chalmel F, Svingen T. Transcriptome analysis of fetal rat testis following intrauterine exposure to the azole fungicides triticonazole and flusilazole reveals subtle changes despite adverse endocrine effects. Chemosphere 2021; 264:128468. [PMID: 33032228 DOI: 10.1016/j.chemosphere.2020.128468] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/11/2020] [Accepted: 09/26/2020] [Indexed: 06/11/2023]
Abstract
Azoles are used in agriculture and medicine to combat fungal infections. We have previously examined the endocrine disrupting properties of the agricultural azole fungicides triticonazole and flusilazole. Triticonazole displayed strong androgen receptor (AR) antagonism in vitro, whereas in utero exposure resulted in anti-androgenic effects in vivo evidenced by shorter anogenital distance (AGD) in fetal male rats. Flusilazole displayed strong AR antagonism, but less potent than triticonazole, and disrupted steroidogenesis in vitro, whereas in utero exposure disrupted fetal male plasma hormone levels. To elaborate on how these azole fungicides can disrupt male reproductive development by different mechanisms, and to investigate whether feminization effects such as short AGD in males can also be detected at the transcript level in fetal testes, we profiled fetal testis transcriptomes after in utero exposure to triticonazole and flusilazole by 3'Digital Gene Expression (3'DGE). The analysis revealed few transcriptional changes after exposure to either compound at gestation day 17 and 21. This suggests that the observed influence of flusilazole on hormone production may be by directly targeting steroidogenic enzyme activity in the testis at the protein level, whereas observations of shorter AGD by triticonazole may primarily be due to disturbed androgen signaling in androgen-sensitive tissues. Expression of Calb2 and Gsta2 was altered by flusilazole but not triticonazole and may pinpoint novel pathways of disrupted testicular steroid synthesis. Our findings have wider implication for how we integrate omics data in chemical testing frameworks, including selection of non-animal test methods and building of Adverse Outcome Pathways for regulatory purposes.
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Affiliation(s)
- Monica Kam Draskau
- Division of Diet, Disease Prevention and Toxicology, National Food Institute, Technical University of Denmark, Kemitorvet Building 202, Kongens Lyngby, DK 2800, Denmark
| | - Aurélie Lardenois
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Bertrand Evrard
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Julie Boberg
- Division of Diet, Disease Prevention and Toxicology, National Food Institute, Technical University of Denmark, Kemitorvet Building 202, Kongens Lyngby, DK 2800, Denmark
| | - Frédéric Chalmel
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Terje Svingen
- Division of Diet, Disease Prevention and Toxicology, National Food Institute, Technical University of Denmark, Kemitorvet Building 202, Kongens Lyngby, DK 2800, Denmark.
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Bellefroid C, Reusch C, Lechanteur A, Evrard B, Debacq-Chainiaux F, Mottet D, Piel G. Systematic study of liposomes composition towards efficient delivery of plasmid DNA as potential application of dermal fibroblasts targeting. Int J Pharm 2020; 593:120122. [PMID: 33307161 DOI: 10.1016/j.ijpharm.2020.120122] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 01/06/2023]
Abstract
The use of non-viral DNA vectors to topically treat skin diseases has demonstrated a high potential. However, vectors applied on the skin face extracellular barriers including the stratum corneum and intracellular barriers such as the endosomal escape and the nuclear targeting of the plasmid DNA. The aim of this study was to develop a formulation suitable for dermal application and effective for delivering plasmid DNA into cells. Different formulations were prepared using different cationic lipids (DOTAP, DC-Chol, DOTMA) and co-lipids (DOPE, DSPE). Lipoplexes were produced by complexing liposomes with plasmid DNA at different pDNA/CL (w/w) ratios. Our results showed that appropriate pDNA/CL ratios allowing total complexation of plasmid DNA differed depending on the structure of the lipid used. The transfection rates showed that (i) higher rates were obtained with DOTMA lipoplexes, (ii) DC-Chol lipoplexes provided a transfection twice as important as DOTAP lipoplexes and (iii) when DSPE was added, the cytotoxicity decreased while transfection rates were similar. We found that formulations composed of DC-Chol:DOPE:DSPE or DOTMA:DOPE were appropriate to complex plasmid DNA and to transfect human primary dermal fibroblasts with efficacy and limited cytotoxicity. Therefore, these formulations are highly promising in the context of gene therapy to treat skin diseases.
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Affiliation(s)
- C Bellefroid
- Laboratory of Pharmaceutical Technology and Biopharmacy, Nanomedicine Development, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, 4000 Liège, Belgium
| | - C Reusch
- Laboratory of Gene Expression and Cancer, GIGA-Molecular Biology of Diseases, University of Liège, 4000 Liège, Belgium
| | - A Lechanteur
- Laboratory of Pharmaceutical Technology and Biopharmacy, Nanomedicine Development, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, 4000 Liège, Belgium
| | - B Evrard
- Laboratory of Pharmaceutical Technology and Biopharmacy, Nanomedicine Development, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, 4000 Liège, Belgium
| | - F Debacq-Chainiaux
- URBC, Namur Research Institute for Life Science (NARILIS), University of Namur, 5000 Namur, Belgium
| | - D Mottet
- Laboratory of Gene Expression and Cancer, GIGA-Molecular Biology of Diseases, University of Liège, 4000 Liège, Belgium
| | - G Piel
- Laboratory of Pharmaceutical Technology and Biopharmacy, Nanomedicine Development, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, 4000 Liège, Belgium.
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Lafon T, Feydeau P, Baisse A, Bigrat V, Raynaud C, Pihan M, Goudelin M, Evrard B, Vallejo C, Karam HH, Vignon P. Évaluation hémodynamique précoce par échocardiographie ciblée des patients en sepsis ou choc septique (Sepsis-3) au service d’urgence. Ann Fr Med Urgence 2020. [DOI: 10.3166/afmu-2020-0268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Introduction : L’identification du profil hémodynamique des patients septiques au service d’urgence (SU) pourrait permettre d’adapter individuellement les recommandations de la Surviving Sepsis Campaign (SSC). L’objectif de cette étude était de décrire le profil hémodynamique précoce par échocardiographie ciblée chez les patients en sepsis et leur impact thérapeutique.
Méthode : Étude prospective monocentrique incluant les patients septiques (score qSOFA [quick Sepsis-related Organ Failure Assessment] ≥ 2) sur une période de 30 mois. L’échocardiographie était réalisée par des médecins urgentistes de niveau échographie clinique en médecine d’urgence 1 afin de déterminer le profil hémodynamique (hypovolémie, vasoplégie avec hyperkinésie, insuffisance ventriculaire ou profil « normal ») dès le sepsis identifié au SU. L’impact thérapeutique était défini par le nombre de patients pour lesquels l’échocardiographie modifiait le traitement de la SSC.
Résultats : Quatre-vingt-un patients (44 sepsis, 37 chocs septiques) ont été étudiés (âge moyen : 70 ± 15 ans ; hommes [n = 47, 58 %] ; SOFA = 5,3 ± 2,9 ; lactates = 4,6 ± 4,2 mmol/l ; admission en réanimation [n = 30, 37 %] ; mortalité j28 [n = 28, 35 %]) après un remplissage vasculaire médian de 500 ml (écart interquartile : 250–1 500 ml). Les profils hémodynamiques dominants étaient l’hypovolémie (n = 54, 66 %), parfois associée à une vasoplégie (n = 26, 32 %) et l’insuffisance ventriculaire (n = 21, 26 %). L’impact thérapeutique concernait 21 patients (26 %), dont un arrêt précoce du remplissage vasculaire après un volume de 850 ± 740 ml chez huit patients.
Conclusion : La dysfonction ventriculaire précoce est présente chez plus de 20 % des patients septiques. L’impact pronostique d’une évaluation échocardiographique dès l’identification du sepsis au SU reste à déterminer.
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Bonnet B, Godignon M, Michaud E, Lambert C, Merlin E, Fauquert JL, Evrard B. Could BAT reduce the number of oral food challenge? A prospective study. World Allergy Organ J 2020. [DOI: 10.1016/j.waojou.2020.100335] [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: 10/23/2022] Open
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Bonnet B, Godignon M, Michaud E, Pereira B, Rochette E, Bernard L, Gourdon-Dubois N, Merlin E, Fauquert JL, Evrard B. Peanut gastrointestinal delivery oral immunotherapy in adolescents: Basophil activation test results of the build-up and maintenance phase of the PITA study. World Allergy Organ J 2020. [DOI: 10.1016/j.waojou.2020.100336] [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: 10/23/2022] Open
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Rouanet J, Lang E, Beltzung F, Evrard B, Henquell C, Joulie I, D'Incan M. Recent outbreak of chilblain-like lesions is not directly related to SARS-CoV-2 infection. J Eur Acad Dermatol Venereol 2020; 34:e689-e692. [PMID: 32589294 PMCID: PMC7361400 DOI: 10.1111/jdv.16776] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 06/15/2020] [Indexed: 01/30/2023]
Affiliation(s)
- J Rouanet
- Department of Dermatology, CHU, Université Clermont Auvergne, Clermont-Ferrand, France
| | - E Lang
- Department of Dermatology, CHU, Université Clermont Auvergne, Clermont-Ferrand, France
| | - F Beltzung
- Department of Pathology, CHU, Université Clermont Auvergne, Clermont-Ferrand, France
| | - B Evrard
- Department of Immunology, CHU, Université Clermont Auvergne, Clermont-Ferrand, France
| | - C Henquell
- Department of Virology, CHU, 3IHP, Université Clermont Auvergne, Clermont-Ferrand, France
| | - I Joulie
- Department of Dermatology, CHU, Université Clermont Auvergne, Clermont-Ferrand, France
| | - M D'Incan
- Department of Dermatology, CHU, Université Clermont Auvergne, Clermont-Ferrand, France
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Rolland AD, Evrard B, Darde TA, Le Béguec C, Le Bras Y, Bensalah K, Lavoué S, Jost B, Primig M, Dejucq-Rainsford N, Chalmel F, Jégou B. RNA profiling of human testicular cells identifies syntenic lncRNAs associated with spermatogenesis. Hum Reprod 2020; 34:1278-1290. [PMID: 31247106 DOI: 10.1093/humrep/dez063] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [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: 10/23/2018] [Revised: 03/15/2019] [Indexed: 12/15/2022] Open
Abstract
STUDY QUESTION Is the noncoding transcriptional landscape during spermatogenesis conserved between human and rodents? SUMMARY ANSWER We identified a core group of 113 long noncoding RNAs (lncRNAs) and 20 novel genes dynamically and syntenically transcribed during spermatogenesis. WHAT IS KNOWN ALREADY Spermatogenesis is a complex differentiation process driven by a tightly regulated and highly specific gene expression program. Recently, several studies in various species have established that a large proportion of known lncRNAs are preferentially expressed during meiosis and spermiogenesis in a testis-specific manner. STUDY DESIGN, SIZE, DURATION To further investigate lncRNA expression in human spermatogenesis, we carried out a cross-species RNA profiling study using isolated testicular cells. PARTICIPANTS/MATERIALS, SETTING, METHODS Human testes were obtained from post-mortem donors (N = 8, 51 years old on average) or from prostate cancer patients with no hormonal treatment (N = 9, 80 years old on average) and only patients with full spermatogenesis were used to prepare enriched populations of spermatocytes, spermatids, Leydig cells, peritubular cells and Sertoli cells. To minimize potential biases linked to inter-patient variations, RNAs from two or three donors were pooled prior to RNA-sequencing (paired-end, strand-specific). Resulting reads were mapped to the human genome, allowing for assembly and quantification of corresponding transcripts. MAIN RESULTS AND THE ROLE OF CHANCE Our RNA-sequencing analysis of pools of isolated human testicular cells enabled us to reconstruct over 25 000 transcripts. Among them we identified thousands of lncRNAs, as well as many previously unidentified genes (novel unannotated transcripts) that share many properties of lncRNAs. Of note is that although noncoding genes showed much lower synteny than protein-coding ones, a significant fraction of syntenic lncRNAs displayed conserved expression during spermatogenesis. LARGE SCALE DATA Raw data files (fastq) and a searchable table (.xlss) containing information on genomic features and expression data for all refined transcripts have been submitted to the NCBI Gene Expression Omnibus under accession number GSE74896. LIMITATIONS, REASONS FOR CAUTION Isolation procedures may alter the physiological state of testicular cells, especially for somatic cells, leading to substantial changes at the transcriptome level. We therefore cross-validated our findings with three previously published transcriptomic analyses of human spermatogenesis. Despite the use of stringent filtration criteria, i.e. expression cut-off of at least three fragments per kilobase of exon model per million reads mapped, fold-change of at least three and false discovery rate adjusted P-values of less than <1%, the possibility of assembly artifacts and false-positive transcripts cannot be fully ruled out. WIDER IMPLICATIONS OF THE FINDINGS For the first time, this study has led to the identification of a large number of conserved germline-associated lncRNAs that are potentially important for spermatogenesis and sexual reproduction. In addition to further substantiating the basis of the human testicular physiology, our study provides new candidate genes for male infertility of genetic origin. This is likely to be relevant for identifying interesting diagnostic and prognostic biomarkers and also potential novel therapeutic targets for male contraception. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by l'Institut national de la santé et de la recherche médicale (Inserm); l'Université de Rennes 1; l'Ecole des hautes études en santé publique (EHESP); INERIS-STORM to B.J. [N 10028NN]; Rennes Métropole 'Défis scientifiques émergents' to F.C (2011) and A.D.R (2013). The authors have no competing financial interests.
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Affiliation(s)
- A D Rolland
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail)-UMR_S1085, Rennes, France
| | - B Evrard
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail)-UMR_S1085, Rennes, France
| | - T A Darde
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail)-UMR_S1085, Rennes, France.,Univ Rennes, Inria, CNRS, IRISA, Rennes, France
| | - C Le Béguec
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail)-UMR_S1085, Rennes, France
| | - Y Le Bras
- Univ Rennes, Inria, CNRS, IRISA, Rennes, France
| | - K Bensalah
- Urology Department, University of Rennes, Rennes, France
| | - S Lavoué
- Unité de Coordination Hospitalière des Prélèvements d'organes et de Tissus, Centre Hospitalier Universitaire de Rennes, Rennes, France
| | - B Jost
- Plateforme GenomEast-Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), INSERM U964, CNRS UMR 7104, Université de Strasbourg, Illkirch, France
| | - M Primig
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail)-UMR_S1085, Rennes, France
| | - N Dejucq-Rainsford
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail)-UMR_S1085, Rennes, France
| | - F Chalmel
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail)-UMR_S1085, Rennes, France
| | - B Jégou
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail)-UMR_S1085, Rennes, France
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Qu A, Evrard B, Dalibard J, Gerbier F. Probing Spin Correlations in a Bose-Einstein Condensate Near the Single-Atom Level. Phys Rev Lett 2020; 125:033401. [PMID: 32745434 DOI: 10.1103/physrevlett.125.033401] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 06/26/2020] [Indexed: 06/11/2023]
Abstract
Using parametric conversion induced by a Shapiro-type resonance, we produce and characterize a two-mode squeezed vacuum state in a sodium spin 1 Bose-Einstein condensate. Spin-changing collisions generate correlated pairs of atoms in the m=±1 Zeeman states out of a condensate with initially all atoms in m=0. A novel fluorescence imaging technique with sensitivity ΔN∼1.6 atom enables us to demonstrate the role of quantum fluctuations in the initial dynamics and to characterize the full distribution of the final state. Assuming that all atoms share the same spatial wave function, we infer a squeezing parameter of 15.3 dB.
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Affiliation(s)
- An Qu
- Laboratoire Kastler Brossel, Collège de France, CNRS, ENS-PSL Research University, Sorbonne Université, 11 Place Marcelin Berthelot, 75005 Paris, France
| | - Bertrand Evrard
- Laboratoire Kastler Brossel, Collège de France, CNRS, ENS-PSL Research University, Sorbonne Université, 11 Place Marcelin Berthelot, 75005 Paris, France
| | - Jean Dalibard
- Laboratoire Kastler Brossel, Collège de France, CNRS, ENS-PSL Research University, Sorbonne Université, 11 Place Marcelin Berthelot, 75005 Paris, France
| | - Fabrice Gerbier
- Laboratoire Kastler Brossel, Collège de France, CNRS, ENS-PSL Research University, Sorbonne Université, 11 Place Marcelin Berthelot, 75005 Paris, France
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