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Durand A, Bonilla N, Level T, Ginestet Z, Lombès A, Guichard V, Germain M, Jacques S, Letourneur F, Do Cruzeiro M, Marchiol C, Renault G, Le Gall M, Charvet C, Le Bon A, Martin B, Auffray C, Lucas B. Type 1 interferons and Foxo1 down-regulation play a key role in age-related T-cell exhaustion in mice. Nat Commun 2024; 15:1718. [PMID: 38409097 PMCID: PMC10897180 DOI: 10.1038/s41467-024-45984-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 02/05/2024] [Indexed: 02/28/2024] Open
Abstract
Foxo family transcription factors are critically involved in multiple processes, such as metabolism, quiescence, cell survival and cell differentiation. Although continuous, high activity of Foxo transcription factors extends the life span of some species, the involvement of Foxo proteins in mammalian aging remains to be determined. Here, we show that Foxo1 is down-regulated with age in mouse T cells. This down-regulation of Foxo1 in T cells may contribute to the disruption of naive T-cell homeostasis with age, leading to an increase in the number of memory T cells. Foxo1 down-regulation is also associated with the up-regulation of co-inhibitory receptors by memory T cells and exhaustion in aged mice. Using adoptive transfer experiments, we show that the age-dependent down-regulation of Foxo1 in T cells is mediated by T-cell-extrinsic cues, including type 1 interferons. Taken together, our data suggest that type 1 interferon-induced Foxo1 down-regulation is likely to contribute significantly to T-cell dysfunction in aged mice.
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Affiliation(s)
- Aurélie Durand
- Université Paris-Cité, Institut Cochin, Centre National de la Recherche Scientifique (CNRS) UMR8104, Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, 75014, Paris, France
| | - Nelly Bonilla
- Université Paris-Cité, Institut Cochin, Centre National de la Recherche Scientifique (CNRS) UMR8104, Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, 75014, Paris, France
| | - Théo Level
- Université Paris-Cité, Institut Cochin, Centre National de la Recherche Scientifique (CNRS) UMR8104, Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, 75014, Paris, France
| | - Zoé Ginestet
- Université Paris-Cité, Institut Cochin, Centre National de la Recherche Scientifique (CNRS) UMR8104, Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, 75014, Paris, France
| | - Amélie Lombès
- Université Paris-Cité, Institut Cochin, Centre National de la Recherche Scientifique (CNRS) UMR8104, Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, 75014, Paris, France
| | - Vincent Guichard
- Université Paris-Cité, Institut Cochin, Centre National de la Recherche Scientifique (CNRS) UMR8104, Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, 75014, Paris, France
| | - Mathieu Germain
- Université Paris-Cité, Institut Cochin, Centre National de la Recherche Scientifique (CNRS) UMR8104, Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, 75014, Paris, France
| | - Sébastien Jacques
- Université Paris-Cité, Institut Cochin, Centre National de la Recherche Scientifique (CNRS) UMR8104, Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, 75014, Paris, France
| | - Franck Letourneur
- Université Paris-Cité, Institut Cochin, Centre National de la Recherche Scientifique (CNRS) UMR8104, Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, 75014, Paris, France
| | - Marcio Do Cruzeiro
- Université Paris-Cité, Institut Cochin, Centre National de la Recherche Scientifique (CNRS) UMR8104, Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, 75014, Paris, France
| | - Carmen Marchiol
- Université Paris-Cité, Institut Cochin, Centre National de la Recherche Scientifique (CNRS) UMR8104, Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, 75014, Paris, France
| | - Gilles Renault
- Université Paris-Cité, Institut Cochin, Centre National de la Recherche Scientifique (CNRS) UMR8104, Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, 75014, Paris, France
| | - Morgane Le Gall
- Université Paris-Cité, Institut Cochin, Centre National de la Recherche Scientifique (CNRS) UMR8104, Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, 75014, Paris, France
| | - Céline Charvet
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Illkirch, France
- CNRS UMR7104, Illkirch, France
- INSERM U1258, Illkirch, France
- Université de Strasbourg, Strasbourg, France
| | - Agnès Le Bon
- Université Paris-Cité, Institut Cochin, Centre National de la Recherche Scientifique (CNRS) UMR8104, Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, 75014, Paris, France
| | - Bruno Martin
- Université Paris-Cité, Institut Cochin, Centre National de la Recherche Scientifique (CNRS) UMR8104, Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, 75014, Paris, France
| | - Cédric Auffray
- Université Paris-Cité, Institut Cochin, Centre National de la Recherche Scientifique (CNRS) UMR8104, Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, 75014, Paris, France
| | - Bruno Lucas
- Université Paris-Cité, Institut Cochin, Centre National de la Recherche Scientifique (CNRS) UMR8104, Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, 75014, Paris, France.
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2
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Calderari S, Archilla C, Jouneau L, Daniel N, Peynot N, Dahirel M, Richard C, Mourier E, Schmaltz-Panneau B, Vitorino Carvalho A, Rousseau-Ralliard D, Lager F, Marchiol C, Renault G, Gatien J, Nadal-Desbarats L, Couturier-Tarrade A, Duranthon V, Chavatte-Palmer P. Alteration of the embryonic microenvironment and sex-specific responses of the preimplantation embryo related to a maternal high-fat diet in the rabbit model. J Dev Orig Health Dis 2023; 14:602-613. [PMID: 37822211 DOI: 10.1017/s2040174423000260] [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: 10/13/2023]
Abstract
The maternal metabolic environment can be detrimental to the health of the offspring. In a previous work, we showed that maternal high-fat (HH) feeding in rabbit induced sex-dependent metabolic adaptation in the fetus and led to metabolic syndrome in adult offspring. As early development representing a critical window of susceptibility, in the present work we aimed to explore the effects of the HH diet on the oocyte, preimplantation embryo and its microenvironment. In oocytes from females on HH diet, transcriptomic analysis revealed a weak modification in the content of transcripts mainly involved in meiosis and translational control. The effect of maternal HH diet on the embryonic microenvironment was investigated by identifying the metabolite composition of uterine and embryonic fluids collected in vivo by biomicroscopy. Metabolomic analysis revealed differences in the HH uterine fluid surrounding the embryo, with increased pyruvate concentration. Within the blastocoelic fluid, metabolomic profiles showed decreased glucose and alanine concentrations. In addition, the blastocyst transcriptome showed under-expression of genes and pathways involved in lipid, glucose and amino acid transport and metabolism, most pronounced in female embryos. This work demonstrates that the maternal HH diet disrupts the in vivo composition of the embryonic microenvironment, where the presence of nutrients is increased. In contrast to this nutrient-rich environment, the embryo presents a decrease in nutrient sensing and metabolism suggesting a potential protective process. In addition, this work identifies a very early sex-specific response to the maternal HH diet, from the blastocyst stage.
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Affiliation(s)
- Sophie Calderari
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas78350, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort94700, France
| | - Catherine Archilla
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas78350, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort94700, France
| | - Luc Jouneau
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas78350, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort94700, France
| | - Nathalie Daniel
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas78350, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort94700, France
| | - Nathalie Peynot
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas78350, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort94700, France
| | - Michele Dahirel
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas78350, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort94700, France
| | - Christophe Richard
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas78350, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort94700, France
- Plateforme MIMA2-CIMA, Jouy en Josas, France
| | - Eve Mourier
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas78350, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort94700, France
- Plateforme MIMA2-CIMA, Jouy en Josas, France
| | - Barbara Schmaltz-Panneau
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas78350, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort94700, France
| | - Anaïs Vitorino Carvalho
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas78350, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort94700, France
| | - Delphine Rousseau-Ralliard
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas78350, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort94700, France
| | - Franck Lager
- Université Paris Cité, Institut Cochin, Inserm, CNRS, ParisF-75014, France
| | - Carmen Marchiol
- Université Paris Cité, Institut Cochin, Inserm, CNRS, ParisF-75014, France
| | - Gilles Renault
- Université Paris Cité, Institut Cochin, Inserm, CNRS, ParisF-75014, France
| | - Julie Gatien
- Research and Development Department, Eliance, Nouzilly, France
| | - Lydie Nadal-Desbarats
- UMR 1253, iBrain, University of Tours, Inserm, Tours, France
- PST-ASB, University of Tours, Tours, France
| | - Anne Couturier-Tarrade
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas78350, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort94700, France
| | - Véronique Duranthon
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas78350, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort94700, France
| | - Pascale Chavatte-Palmer
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas78350, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort94700, France
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3
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Sourdon J, Facchin C, Certain A, Viel T, Robin B, Lager F, Marchiol C, Balvay D, Yoganathan T, Favier J, Tharaux PL, Dhaun N, Renault G, Tavitian B. Sunitinib-induced cardiac hypertrophy and the endothelin axis. Am J Cancer Res 2021; 11:3830-3838. [PMID: 33664864 PMCID: PMC7914356 DOI: 10.7150/thno.49837] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 10/13/2020] [Indexed: 12/16/2022] Open
Abstract
Anti-angiogenics drugs in clinical use for cancer treatment induce cardiotoxic side effects. The endothelin axis is involved in hypertension and cardiac remodelling, and addition of an endothelin receptor antagonist to the anti-angiogenic sunitinib was shown to reduce cardiotoxicity of sunitinib in mice. Here, we explored further the antidote effect of the endothelin receptor antagonist macitentan in sunitinib-treated animals on cardiac remodeling. Methods: Tumor-bearing mice treated per os daily by sunitinib or vehicle were imaged before and after 1, 3 and 6 weeks of treatment by positron emission tomography using [18F]fluorodeoxyglucose and by echocardiography. Non-tumor-bearing animals were randomly assigned to be treated per os daily by vehicle or sunitinib or macitentan or sunitinib+macitentan, and imaged by echocardiography after 5 weeks. Hearts were harvested for histology and molecular analysis at the end of in vivo exploration. Results: Sunitinib treatment increases left ventricular mass and ejection fraction and induces cardiac fibrosis. Sunitinib also induces an early increase in cardiac uptake of [18F]fluorodeoxyglucose, which is significantly correlated with increased left ventricular mass at the end of treatment. Co-administration of macitentan prevents sunitinib-induced hypertension, increase in ejection fraction and cardiac fibrosis, but fails to prevent increase of the left ventricular mass. Conclusion: Early metabolic changes predict sunitinib-induced cardiac remodeling. Endothelin blockade can prevent some but not all cardiotoxic side-effects of sunitinib, in particular left ventricle hypertrophy that appears to be induced by sunitinib through an endothelin-independent mechanism.
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4
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Calderari S, Daniel N, Mourier E, Richard C, Dahirel M, Lager F, Marchiol C, Renault G, Gatien J, Nadal-Desbarats L, Chavatte-Palmer P, Duranthon V. Metabolomic differences in blastocoel and uterine fluids collected in vivo by ultrasound biomicroscopy on rabbit embryos†. Biol Reprod 2021; 104:794-805. [PMID: 33459770 DOI: 10.1093/biolre/ioab005] [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: 08/20/2020] [Revised: 11/24/2020] [Accepted: 01/07/2021] [Indexed: 11/12/2022] Open
Abstract
The success of embryo development and implantation depends in part on the environment in which the embryo evolves. However, the composition of the uterine fluid surrounding the embryo in the peri-implantation period remains poorly studied. In this work, we aimed to develop a new strategy to visualize, collect, and analyze both blastocoelic liquid and juxta-embryonic uterine fluid from in vivo peri-implantation rabbit embryos. Using high-resolution ultrasound biomicroscopy, embryos were observed as fluid-filled anechoic vesicles, some of which were surrounded by a thin layer of uterine fluid. Ultrasound-guided puncture and aspiration of both the blastocoelic fluid contained in the embryo and the uterine fluid in the vicinity of the embryo were performed. Using nuclear magnetic resonance spectroscopy, altogether 24 metabolites were identified and quantified, of which 21 were detected in both fluids with a higher concentration in the uterus compared to the blastocoel. In contrast, pyruvate was detected at a higher concentration in blastocoelic compared to uterine fluid. Two acidic amino acids, glutamate and aspartate, were not detected in uterine fluid in contrast to blastocoelic fluid, suggesting a local regulation of uterine fluid composition. To our knowledge, this is the first report of simultaneous analysis of blastocoelic and uterine fluids collected in vivo at the time of implantation in mammals, shedding new insight for understanding the relationship between the embryo and its local environment at this critical period of development.
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Affiliation(s)
- Sophie Calderari
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France.,Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France
| | - Nathalie Daniel
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France.,Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France
| | - Eve Mourier
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France.,Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France.,Plateforme MIMA2-CIMA, Jouy en Josas, France
| | - Christophe Richard
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France.,Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France.,Plateforme MIMA2-CIMA, Jouy en Josas, France
| | - Michele Dahirel
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France.,Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France.,Plateforme MIMA2-CIMA, Jouy en Josas, France
| | - Franck Lager
- INSERM U1016, Institut Cochin, Université Paris Descartes, PRES Sorbonne Paris Cité, Paris, France
| | - Carmen Marchiol
- INSERM U1016, Institut Cochin, Université Paris Descartes, PRES Sorbonne Paris Cité, Paris, France
| | - Gilles Renault
- INSERM U1016, Institut Cochin, Université Paris Descartes, PRES Sorbonne Paris Cité, Paris, France
| | - Julie Gatien
- Research and Development Department, Allice, Nouzilly, France
| | - Lydie Nadal-Desbarats
- UMR 1253, iBrain, Inserm, University of Tours, Tours, France.,PST-ASB, University of Tours, Tours, France
| | - Pascale Chavatte-Palmer
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France.,Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France.,Plateforme MIMA2-CIMA, Jouy en Josas, France
| | - Véronique Duranthon
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France.,Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France
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5
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Vatin M, Girault MS, Firlej V, Marchiol C, Ialy-Radio C, Montagutelli X, Vaiman D, Barbaux S, Ziyyat A. Identification of a New QTL Region on Mouse Chromosome 1 Responsible for Male Hypofertility: Phenotype Characterization and Candidate Genes. Int J Mol Sci 2020; 21:ijms21228506. [PMID: 33198087 PMCID: PMC7697627 DOI: 10.3390/ijms21228506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 11/07/2020] [Accepted: 11/09/2020] [Indexed: 12/14/2022] Open
Abstract
Male fertility disorders often have their origin in disturbed spermatogenesis, which can be induced by genetic factors. In this study, we used interspecific recombinant congenic mouse strains (IRCS) to identify genes responsible for male infertility. Using ultrasonography, in vivo and in vitro fertilization (IVF) and electron microscopy, the phenotyping of several IRCS carrying mouse chromosome 1 segments of Mus spretus origin revealed a decrease in the ability of sperm to fertilize. This teratozoospermia included the abnormal anchoring of the acrosome to the nucleus and a persistence of residual bodies at the level of epididymal sperm midpiece. We identified a quantitative trait locus (QTL) responsible for these phenotypes and we have proposed a short list of candidate genes specifically expressed in spermatids. The future functional validation of candidate genes should allow the identification of new genes and mechanisms involved in male infertility.
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Affiliation(s)
- Magalie Vatin
- Institut Cochin, Université de Paris, INSERM, CNRS, F-75014 Paris, France; (M.V.); (M.-S.G.); (V.F.); (C.M.); (C.I.-R.); (D.V.); (S.B.)
| | - Marie-Sophie Girault
- Institut Cochin, Université de Paris, INSERM, CNRS, F-75014 Paris, France; (M.V.); (M.-S.G.); (V.F.); (C.M.); (C.I.-R.); (D.V.); (S.B.)
| | - Virginie Firlej
- Institut Cochin, Université de Paris, INSERM, CNRS, F-75014 Paris, France; (M.V.); (M.-S.G.); (V.F.); (C.M.); (C.I.-R.); (D.V.); (S.B.)
| | - Carmen Marchiol
- Institut Cochin, Université de Paris, INSERM, CNRS, F-75014 Paris, France; (M.V.); (M.-S.G.); (V.F.); (C.M.); (C.I.-R.); (D.V.); (S.B.)
| | - Côme Ialy-Radio
- Institut Cochin, Université de Paris, INSERM, CNRS, F-75014 Paris, France; (M.V.); (M.-S.G.); (V.F.); (C.M.); (C.I.-R.); (D.V.); (S.B.)
| | | | - Daniel Vaiman
- Institut Cochin, Université de Paris, INSERM, CNRS, F-75014 Paris, France; (M.V.); (M.-S.G.); (V.F.); (C.M.); (C.I.-R.); (D.V.); (S.B.)
| | - Sandrine Barbaux
- Institut Cochin, Université de Paris, INSERM, CNRS, F-75014 Paris, France; (M.V.); (M.-S.G.); (V.F.); (C.M.); (C.I.-R.); (D.V.); (S.B.)
| | - Ahmed Ziyyat
- Institut Cochin, Université de Paris, INSERM, CNRS, F-75014 Paris, France; (M.V.); (M.-S.G.); (V.F.); (C.M.); (C.I.-R.); (D.V.); (S.B.)
- Service d’histologie, d’embryologie, Biologie de la Reproduction, AP-HP, Hôpital Cochin, F-75014 Paris, France
- Correspondence:
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6
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Darrigrand JF, Valente M, Comai G, Martinez P, Petit M, Nishinakamura R, Osorio DS, Renault G, Marchiol C, Ribes V, Cadot B. Dullard-mediated Smad1/5/8 inhibition controls mouse cardiac neural crest cells condensation and outflow tract septation. eLife 2020; 9:e50325. [PMID: 32105214 PMCID: PMC7069721 DOI: 10.7554/elife.50325] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 02/26/2020] [Indexed: 02/07/2023] Open
Abstract
The establishment of separated pulmonary and systemic circulation in vertebrates, via cardiac outflow tract (OFT) septation, is a sensitive developmental process accounting for 10% of all congenital anomalies. Neural Crest Cells (NCC) colonising the heart condensate along the primitive endocardial tube and force its scission into two tubes. Here, we show that NCC aggregation progressively decreases along the OFT distal-proximal axis following a BMP signalling gradient. Dullard, a nuclear phosphatase, tunes the BMP gradient amplitude and prevents NCC premature condensation. Dullard maintains transcriptional programs providing NCC with mesenchymal traits. It attenuates the expression of the aggregation factor Sema3c and conversely promotes that of the epithelial-mesenchymal transition driver Twist1. Altogether, Dullard-mediated fine-tuning of BMP signalling ensures the timed and progressive zipper-like closure of the OFT by the NCC and prevents the formation of a heart carrying the congenital abnormalities defining the tetralogy of Fallot.
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Affiliation(s)
| | - Mariana Valente
- Cellular, Molecular, and Physiological Mechanisms of Heart Failure team, Paris-Cardiovascular Research Center (PARCC), European Georges Pompidou Hospital (HEGP), INSERM U970, F-75737ParisFrance
| | - Glenda Comai
- Stem Cells and Development, Department of Developmental & Stem Cell Biology, CNRS UMR 3738, Institut PasteurParisFrance
| | - Pauline Martinez
- INSERM - Sorbonne Université UMR974 - Center for Research in MyologyParisFrance
| | - Maxime Petit
- Unité Lymphopoïèse – INSERM U1223, Institut PasteurParisFrance
| | | | - Daniel S Osorio
- Cytoskeletal Dynamics Lab, Institute for Molecular and Cellular Biology, Instituto de Investigação e Inovação em Saúde, Universidade do PortoPortoPortugal
| | - Gilles Renault
- Université de Paris, Institut Cochin, INSERM, CNRSParisFrance
| | - Carmen Marchiol
- Université de Paris, Institut Cochin, INSERM, CNRSParisFrance
| | - Vanessa Ribes
- Universite de Paris, Institut Jacques MonodCNRSParisFrance
| | - Bruno Cadot
- INSERM - Sorbonne Université UMR974 - Center for Research in MyologyParisFrance
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7
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Miralles F, Collinot H, Boumerdassi Y, Ducat A, Duché A, Renault G, Marchiol C, Lagoutte I, Bertholle C, Andrieu M, Jacques S, Méhats C, Vaiman D. Long-term cardiovascular disorders in the STOX1 mouse model of preeclampsia. Sci Rep 2019; 9:11918. [PMID: 31417152 PMCID: PMC6695383 DOI: 10.1038/s41598-019-48427-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 07/31/2019] [Indexed: 12/14/2022] Open
Abstract
Adverse long-term cardiovascular (CV) consequences of PE are well established in women. However, the mechanism responsible for that risk remains unknown. Here, we mated wild-type female mice of the FVB/N strain to STOX1A-overexpressing mice to mimic severe PE and investigated the long-term consequences on the maternal cardiovascular system. Ultrasonography parameters were analyzed in mice before pregnancy and at 3 and 6 months post-pregnancy. At 6 months post-pregnancy, cardiac stress test induced by dobutamine injection revealed an abnormal ultrasonography Doppler profile in mice with previous PE. Eight months post-pregnancy, the heart, endothelial cells (ECs) and plasma of females were analyzed and compared to controls. The heart of mice with PE showed left-ventricular hypertrophy associated with altered histology (fibrosis). Transcriptomic analysis revealed the deregulation of 1149 genes in purified ECs and of 165 genes in the hearts, many being involved in heart hypertrophy. In ECs, the upregulated genes were associated with inflammation and cellular stress. Systems biology analysis identified interleukin 6 (IL-6) as a hub gene connecting these pathways. Plasma profiling of 33 cytokines showed that, 8 of them (Cxcl13, Cxcl16, Cxcl11, IL-16, IL-10, IL-2, IL-4 and Ccl1) allowed to discriminate mice with previous PE from controls. Thus, PE triggers female long-term CV consequences on the STOX1 mouse model.
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Affiliation(s)
- Francisco Miralles
- Institut Cochin, U1016 INSERM - UMR8104, CNRS - Université Paris Descartes, Team "From Gametes To Birth", 24 rue du Faubourg St Jacques, 75014, Paris, France
| | - Hélène Collinot
- Institut Cochin, U1016 INSERM - UMR8104, CNRS - Université Paris Descartes, Team "From Gametes To Birth", 24 rue du Faubourg St Jacques, 75014, Paris, France
| | - Yasmine Boumerdassi
- Institut Cochin, U1016 INSERM - UMR8104, CNRS - Université Paris Descartes, Team "From Gametes To Birth", 24 rue du Faubourg St Jacques, 75014, Paris, France
| | - Aurélien Ducat
- Institut Cochin, U1016 INSERM - UMR8104, CNRS - Université Paris Descartes, Team "From Gametes To Birth", 24 rue du Faubourg St Jacques, 75014, Paris, France
| | - Angéline Duché
- Institut Cochin, U1016 INSERM - UMR8104, CNRS - Université Paris Descartes, Genom'IC Platform, Bâtiment Gustave Roussy, 27 rue du faubourg Saint Jacques, 75014, Paris, France
| | - Gilles Renault
- Institut Cochin, U1016 INSERM - UMR8104, CNRS - Université Paris Descartes, PIV Platform, 22 rue Méchain, 75014, Paris, France
| | - Carmen Marchiol
- Institut Cochin, U1016 INSERM - UMR8104, CNRS - Université Paris Descartes, PIV Platform, 22 rue Méchain, 75014, Paris, France
| | - Isabelle Lagoutte
- Institut Cochin, U1016 INSERM - UMR8104, CNRS - Université Paris Descartes, PIV Platform, 22 rue Méchain, 75014, Paris, France
| | - Céline Bertholle
- Institut Cochin, U1016 INSERM - UMR8104, CNRS - Université Paris Descartes, CYBIO Platform, 27 rue du Faubourg Saint Jacques, 75014, Paris, France
| | - Muriel Andrieu
- Institut Cochin, U1016 INSERM - UMR8104, CNRS - Université Paris Descartes, CYBIO Platform, 27 rue du Faubourg Saint Jacques, 75014, Paris, France
| | - Sébastien Jacques
- Institut Cochin, U1016 INSERM - UMR8104, CNRS - Université Paris Descartes, Genom'IC Platform, Bâtiment Gustave Roussy, 27 rue du faubourg Saint Jacques, 75014, Paris, France
| | - Céline Méhats
- Institut Cochin, U1016 INSERM - UMR8104, CNRS - Université Paris Descartes, Team "From Gametes To Birth", 24 rue du Faubourg St Jacques, 75014, Paris, France
| | - Daniel Vaiman
- Institut Cochin, U1016 INSERM - UMR8104, CNRS - Université Paris Descartes, Team "From Gametes To Birth", 24 rue du Faubourg St Jacques, 75014, Paris, France.
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8
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Desgrange A, Lokmer J, Marchiol C, Houyel L, Meilhac SM. Standardised imaging pipeline for phenotyping mouse laterality defects and associated heart malformations, at multiple scales and multiple stages. Dis Model Mech 2019; 12:dmm.038356. [PMID: 31208960 PMCID: PMC6679386 DOI: 10.1242/dmm.038356] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 06/06/2019] [Indexed: 12/11/2022] Open
Abstract
Laterality defects are developmental disorders resulting from aberrant left/right patterning. In the most severe cases, such as in heterotaxy, they are associated with complex malformations of the heart. Advances in understanding the underlying physiopathological mechanisms have been hindered by the lack of a standardised and exhaustive procedure in mouse models for phenotyping left/right asymmetries of all visceral organs. Here, we have developed a multimodality imaging pipeline, which combines non-invasive micro-ultrasound imaging, micro-computed tomography (micro-CT) and high-resolution episcopic microscopy (HREM) to acquire 3D images at multiple stages of development and at multiple scales. On the basis of the position in the uterine horns, we track in a single individual, the progression of organ asymmetry, the situs of all visceral organs in the thoracic or abdominal environment, and the fine anatomical left/right asymmetries of cardiac segments. We provide reference anatomical images and organ reconstructions in the mouse, and discuss differences with humans. This standardised pipeline, which we validated in a mouse model of heterotaxy, offers a fast and easy-to-implement framework. The extensive 3D phenotyping of organ asymmetry in the mouse uses the clinical nomenclature for direct comparison with patient phenotypes. It is compatible with automated and quantitative image analyses, which is essential to compare mutant phenotypes with incomplete penetrance and to gain mechanistic insight into laterality defects. Summary: Laterality defects, which combine anomalies in several visceral organs, are challenging to phenotype. We have developed here a standardised approach for multimodality 3D imaging in mice, generating quantifiable phenotypes.
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Affiliation(s)
- Audrey Desgrange
- Imagine-Institut Pasteur, Laboratory of Heart Morphogenesis, 75015 Paris, France.,INSERM UMR1163, 75015 Paris, France.,Université Paris Descartes, Sorbonne Paris-Cité, 75006 Paris, France
| | - Johanna Lokmer
- Imagine-Institut Pasteur, Laboratory of Heart Morphogenesis, 75015 Paris, France.,INSERM UMR1163, 75015 Paris, France.,Université Paris Descartes, Sorbonne Paris-Cité, 75006 Paris, France
| | - Carmen Marchiol
- Université Paris Descartes, Sorbonne Paris-Cité, 75006 Paris, France.,INSERM U1016, Institut Cochin, 75014 Paris, France.,CNRS UMR8104, 75014 Paris, France
| | - Lucile Houyel
- Université Paris Descartes, Sorbonne Paris-Cité, 75006 Paris, France.,Unité de Cardiologie Pédiatrique et Congénitale, Hôpital Necker Enfants Malades, Centre de référence des Malformations Cardiaques Congénitales Complexes-M3C, APHP, 75015 Paris, France
| | - Sigolène M Meilhac
- Imagine-Institut Pasteur, Laboratory of Heart Morphogenesis, 75015 Paris, France .,INSERM UMR1163, 75015 Paris, France.,Université Paris Descartes, Sorbonne Paris-Cité, 75006 Paris, France
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9
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Messéant J, Ezan J, Delers P, Glebov K, Marchiol C, Lager F, Renault G, Tissir F, Montcouquiol M, Sans N, Legay C, Strochlic L. Wnt proteins contribute to neuromuscular junction formation through distinct signaling pathways. Development 2017; 144:1712-1724. [PMID: 28348167 DOI: 10.1242/dev.146167] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [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: 10/28/2016] [Accepted: 03/20/2017] [Indexed: 01/05/2023]
Abstract
Understanding the developmental steps that shape formation of the neuromuscular junction (NMJ) connecting motoneurons to skeletal muscle fibers is crucial. Wnt morphogens are key players in the formation of this specialized peripheral synapse, but their individual and collaborative functions and downstream pathways remain poorly understood at the NMJ. Here, we demonstrate through Wnt4 and Wnt11 gain-of-function studies in cell culture or in mice that Wnts enhance acetylcholine receptor (AChR) clustering and motor axon outgrowth. By contrast, loss of Wnt11 or Wnt-dependent signaling in vivo decreases AChR clustering and motor nerve terminal branching. Both Wnt4 and Wnt11 stimulate AChR mRNA levels and AChR clustering downstream of activation of the β-catenin pathway. Strikingly, Wnt4 and Wnt11 co-immunoprecipitate with Vangl2, a core component of the planar cell polarity (PCP) pathway, which accumulates at embryonic NMJs. Moreover, mice bearing a Vangl2 loss-of-function mutation (loop-tail) exhibit fewer AChR clusters and overgrowth of motor axons bypassing AChR clusters. Together, our results provide genetic and biochemical evidence that Wnt4 and Wnt11 cooperatively contribute to mammalian NMJ formation through activation of both the canonical and Vangl2-dependent core PCP pathways.
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Affiliation(s)
- Julien Messéant
- CNRS UMR 8119, CNRS UMR 8194, Université Paris Descartes, PRES Sorbonne Paris Cité, Paris 75270 Cedex 06, France
| | - Jérôme Ezan
- INSERM, Neurocentre Magendie, U1215, Bordeaux 33077, France.,Université de Bordeaux, Neurocentre Magendie, U1215, Bordeaux 33077, France
| | - Perrine Delers
- CNRS UMR 8119, CNRS UMR 8194, Université Paris Descartes, PRES Sorbonne Paris Cité, Paris 75270 Cedex 06, France
| | - Konstantin Glebov
- INSERM, Neurocentre Magendie, U1215, Bordeaux 33077, France.,Université de Bordeaux, Neurocentre Magendie, U1215, Bordeaux 33077, France
| | - Carmen Marchiol
- INSERM U1016, Institut Cochin, Université Paris Descartes, PRES Sorbonne Paris Cité, Paris 75014, France
| | - Franck Lager
- INSERM U1016, Institut Cochin, Université Paris Descartes, PRES Sorbonne Paris Cité, Paris 75014, France
| | - Gilles Renault
- INSERM U1016, Institut Cochin, Université Paris Descartes, PRES Sorbonne Paris Cité, Paris 75014, France
| | - Fadel Tissir
- Université Catholique de Louvain, Institute of Neuroscience, Brussels B1200, Belgium
| | - Mireille Montcouquiol
- INSERM, Neurocentre Magendie, U1215, Bordeaux 33077, France.,Université de Bordeaux, Neurocentre Magendie, U1215, Bordeaux 33077, France
| | - Nathalie Sans
- INSERM, Neurocentre Magendie, U1215, Bordeaux 33077, France.,Université de Bordeaux, Neurocentre Magendie, U1215, Bordeaux 33077, France
| | - Claire Legay
- CNRS UMR 8119, CNRS UMR 8194, Université Paris Descartes, PRES Sorbonne Paris Cité, Paris 75270 Cedex 06, France
| | - Laure Strochlic
- CNRS UMR 8119, CNRS UMR 8194, Université Paris Descartes, PRES Sorbonne Paris Cité, Paris 75270 Cedex 06, France
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10
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Marangon I, Silva AAK, Guilbert T, Kolosnjaj-Tabi J, Marchiol C, Natkhunarajah S, Chamming's F, Ménard-Moyon C, Bianco A, Gennisson JL, Renault G, Gazeau F. Tumor Stiffening, a Key Determinant of Tumor Progression, is Reversed by Nanomaterial-Induced Photothermal Therapy. Am J Cancer Res 2017; 7:329-343. [PMID: 28042338 PMCID: PMC5197068 DOI: 10.7150/thno.17574] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 10/24/2016] [Indexed: 12/18/2022] Open
Abstract
Tumor stiffening, stemming from aberrant production and organization of extracellular matrix (ECM), has been considered a predictive marker of tumor malignancy, non-invasively assessed by ultrasound shear wave elastography (SWE). Being more than a passive marker, tumor stiffening restricts the delivery of diagnostic and therapeutic agents to the tumor and per se could modulate cellular mechano-signaling, tissue inflammation and tumor progression. Current strategies to modify the tumor extracellular matrix are based on ECM-targeting chemical agents but also showed deleterious systemic effects. On-demand excitable nanomaterials have shown their ability to perturb the tumor microenvironment in a spatiotemporal-controlled manner and synergistically with chemotherapy. Here, we investigated the evolution of tumor stiffness as well as tumor integrity and progression, under the effect of mild hyperthermia and thermal ablation generated by light-exposed multi-walled carbon nanotubes (MWCNTs) in an epidermoid carcinoma mouse xenograft. SWE was used for real-time mapping of the tumor stiffness, both during the two near infrared irradiation sessions and over the days after the treatment. We observed a transient and reversible stiffening of the tumor tissue during laser irradiation, which was lowered at the second session of mild hyperthermia or photoablation. In contrast, over the days following photothermal treatment, the treated tumors exhibited a significant softening together with volume reduction, whereas non-treated growing tumors showed an increase of tumor rigidity. The organization of the collagen matrix and the distribution of CNTs revealed a spatio-temporal correlation between the presence of nanoheaters and the damages on collagen and cells. This study highlights nanohyperthermia as a promising adjuvant strategy to reverse tumor stiffening and normalize the mechanical tumor environment.
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11
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Gougelet A, Sartor C, Bachelot L, Godard C, Marchiol C, Renault G, Tores F, Nitschke P, Cavard C, Terris B, Perret C, Colnot S. Antitumour activity of an inhibitor of miR-34a in liver cancer with β-catenin-mutations. Gut 2016; 65:1024-34. [PMID: 25792709 DOI: 10.1136/gutjnl-2014-308969] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 02/18/2015] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Hepatocellular carcinoma (HCC) is the most prevalent primary tumour of the liver. About a third of these tumours presents activating mutations of the β-catenin gene. The molecular pathogenesis of HCC has been elucidated, but mortality remains high, and new therapeutic approaches, including treatments based on microRNAs, are required. We aimed to identify candidate microRNAs, regulated by β-catenin, potentially involved in liver tumorigenesis. DESIGN We used a mouse model, in which β-catenin signalling was overactivated exclusively in the liver by the tamoxifen-inducible and Cre-Lox-mediated inactivation of the Apc gene. This model develops tumours with properties similar to human HCC. RESULTS We found that miR-34a was regulated by β-catenin, and significantly induced by the overactivation of β-catenin signalling in mouse tumours and in patients with HCC. An inhibitor of miR-34a (locked nucleic acid, LNA-34a) exerted antiproliferative activity in primary cultures of hepatocyte. This inhibition of proliferation was associated with a decrease in cyclin D1 levels, orchestrated principally by HNF-4α, a target of miR-34a considered to act as a tumour suppressor in the liver. In vivo, LNA-34a approximately halved progression rates for tumours displaying β-catenin activation together with an activation of caspases 2 and 3. CONCLUSIONS This work demonstrates the key oncogenic role of miR-34a in liver tumours with β-catenin gene mutations. We suggest that patients diagnosed with HCC with β-catenin mutations could be treated with an inhibitor of miR-34a. The potential value of this strategy lies in the modulation of the tumour suppressor HNF-4α, which targets cyclin D1, and the induction of a proapoptotic programme.
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Affiliation(s)
- Angélique Gougelet
- Inserm, U1016, Institut Cochin, Paris, France CNRS, UMR8104, Paris, France Université Paris Descartes, Sorbonne Paris Cité, Paris, France Equipe labellisée LNCC, Paris, France
| | - Chiara Sartor
- Inserm, U1016, Institut Cochin, Paris, France CNRS, UMR8104, Paris, France Université Paris Descartes, Sorbonne Paris Cité, Paris, France Equipe labellisée LNCC, Paris, France
| | - Laura Bachelot
- Inserm, U1016, Institut Cochin, Paris, France CNRS, UMR8104, Paris, France Université Paris Descartes, Sorbonne Paris Cité, Paris, France Equipe labellisée LNCC, Paris, France
| | - Cécile Godard
- Inserm, U1016, Institut Cochin, Paris, France CNRS, UMR8104, Paris, France Université Paris Descartes, Sorbonne Paris Cité, Paris, France Equipe labellisée LNCC, Paris, France
| | - Carmen Marchiol
- Inserm, U1016, Institut Cochin, Paris, France CNRS, UMR8104, Paris, France Université Paris Descartes, Sorbonne Paris Cité, Paris, France Imagerie du petit animal, Institut Cochin, Paris, France
| | - Gilles Renault
- Inserm, U1016, Institut Cochin, Paris, France CNRS, UMR8104, Paris, France Université Paris Descartes, Sorbonne Paris Cité, Paris, France Imagerie du petit animal, Institut Cochin, Paris, France
| | - Frédéric Tores
- Plateforme de bioinformatique Paris Descartes, Institut Imagine, Paris, France
| | - Patrick Nitschke
- Plateforme de bioinformatique Paris Descartes, Institut Imagine, Paris, France
| | - Catherine Cavard
- Inserm, U1016, Institut Cochin, Paris, France CNRS, UMR8104, Paris, France Université Paris Descartes, Sorbonne Paris Cité, Paris, France Equipe labellisée LNCC, Paris, France
| | - Benoit Terris
- Inserm, U1016, Institut Cochin, Paris, France CNRS, UMR8104, Paris, France Université Paris Descartes, Sorbonne Paris Cité, Paris, France Equipe labellisée LNCC, Paris, France Service d'Anatomie et Cytologie Pathologiques, AP-HP, Hôpital Cochin, Université Paris Descartes, Paris, France
| | - Christine Perret
- Inserm, U1016, Institut Cochin, Paris, France CNRS, UMR8104, Paris, France Université Paris Descartes, Sorbonne Paris Cité, Paris, France Equipe labellisée LNCC, Paris, France
| | - Sabine Colnot
- Inserm, U1016, Institut Cochin, Paris, France CNRS, UMR8104, Paris, France Université Paris Descartes, Sorbonne Paris Cité, Paris, France Equipe labellisée LNCC, Paris, France
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12
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Gorin C, Rochefort GY, Bascetin R, Ying H, Lesieur J, Sadoine J, Beckouche N, Berndt S, Novais A, Lesage M, Hosten B, Vercellino L, Merlet P, Le-Denmat D, Marchiol C, Letourneur D, Nicoletti A, Vital SO, Poliard A, Salmon B, Muller L, Chaussain C, Germain S. Priming Dental Pulp Stem Cells With Fibroblast Growth Factor-2 Increases Angiogenesis of Implanted Tissue-Engineered Constructs Through Hepatocyte Growth Factor and Vascular Endothelial Growth Factor Secretion. Stem Cells Transl Med 2016; 5:392-404. [PMID: 26798059 DOI: 10.5966/sctm.2015-0166] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 10/07/2015] [Indexed: 12/18/2022] Open
Abstract
Tissue engineering strategies based on implanting cellularized biomaterials are promising therapeutic approaches for the reconstruction of large tissue defects. A major hurdle for the reliable establishment of such therapeutic approaches is the lack of rapid blood perfusion of the tissue construct to provide oxygen and nutrients. Numerous sources of mesenchymal stem cells (MSCs) displaying angiogenic potential have been characterized in the past years, including the adult dental pulp. Establishment of efficient strategies for improving angiogenesis in tissue constructs is nevertheless still an important challenge. Hypoxia was proposed as a priming treatment owing to its capacity to enhance the angiogenic potential of stem cells through vascular endothelial growth factor (VEGF) release. The present study aimed to characterize additional key factors regulating the angiogenic capacity of such MSCs, namely, dental pulp stem cells derived from deciduous teeth (SHED). We identified fibroblast growth factor-2 (FGF-2) as a potent inducer of the release of VEGF and hepatocyte growth factor (HGF) by SHED. We found that FGF-2 limited hypoxia-induced downregulation of HGF release. Using three-dimensional culture models of angiogenesis, we demonstrated that VEGF and HGF were both responsible for the high angiogenic potential of SHED through direct targeting of endothelial cells. In addition, FGF-2 treatment increased the fraction of Stro-1+/CD146+ progenitor cells. We then applied in vitro FGF-2 priming to SHED before encapsulation in hydrogels and in vivo subcutaneous implantation. Our results showed that FGF-2 priming is more efficient than hypoxia at increasing SHED-induced vascularization compared with nonprimed controls. Altogether, these data demonstrate that FGF-2 priming enhances the angiogenic potential of SHED through the secretion of both HGF and VEGF.
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Affiliation(s)
- Caroline Gorin
- EA 2496 Pathologies, Imagerie et Biothérapies orofaciales et Plateforme Imagerie du Vivant, Dental School, Université Paris Descartes Sorbonne Paris Cité, Montrouge, France Assistance Publique des Hôpitaux de Paris (AP-HP) Département d'Odontologie, Hôpitaux Universitaires PNVS, Paris, France
| | - Gael Y Rochefort
- EA 2496 Pathologies, Imagerie et Biothérapies orofaciales et Plateforme Imagerie du Vivant, Dental School, Université Paris Descartes Sorbonne Paris Cité, Montrouge, France
| | - Rumeyza Bascetin
- Center for Interdisciplinary Research in Biology, Collège de France, Paris, France Inserm U1050, Paris, France CNRS UMRS 7241, Paris, France
| | - Hanru Ying
- Center for Interdisciplinary Research in Biology, Collège de France, Paris, France Inserm U1050, Paris, France CNRS UMRS 7241, Paris, France
| | - Julie Lesieur
- EA 2496 Pathologies, Imagerie et Biothérapies orofaciales et Plateforme Imagerie du Vivant, Dental School, Université Paris Descartes Sorbonne Paris Cité, Montrouge, France
| | - Jérémy Sadoine
- EA 2496 Pathologies, Imagerie et Biothérapies orofaciales et Plateforme Imagerie du Vivant, Dental School, Université Paris Descartes Sorbonne Paris Cité, Montrouge, France
| | - Nathan Beckouche
- Center for Interdisciplinary Research in Biology, Collège de France, Paris, France Inserm U1050, Paris, France CNRS UMRS 7241, Paris, France
| | - Sarah Berndt
- Center for Interdisciplinary Research in Biology, Collège de France, Paris, France Inserm U1050, Paris, France CNRS UMRS 7241, Paris, France
| | - Anita Novais
- EA 2496 Pathologies, Imagerie et Biothérapies orofaciales et Plateforme Imagerie du Vivant, Dental School, Université Paris Descartes Sorbonne Paris Cité, Montrouge, France
| | - Matthieu Lesage
- Center for Interdisciplinary Research in Biology, Collège de France, Paris, France Inserm U1050, Paris, France CNRS UMRS 7241, Paris, France
| | - Benoit Hosten
- INSERM UMR-S1144, Université Paris Descartes-Paris Diderot Sorbonne Paris Cité, AP-HP, Hôpital St. Louis, Unité Claude Kellershohn, Paris, France
| | - Laetitia Vercellino
- Université Paris Diderot, AP-HP, Hôpital St. Louis, Unité Claude Kellershohn, Paris, France
| | - Pascal Merlet
- Université Paris Diderot, AP-HP, Hôpital St. Louis, Unité Claude Kellershohn, Paris, France
| | - Dominique Le-Denmat
- EA 2496 Pathologies, Imagerie et Biothérapies orofaciales et Plateforme Imagerie du Vivant, Dental School, Université Paris Descartes Sorbonne Paris Cité, Montrouge, France
| | - Carmen Marchiol
- Institut Cochin, Plateforme Imagerie du vivant, Université Paris Descartes Sorbonne Paris Cité, Paris, France
| | - Didier Letourneur
- INSERM U1148, Laboratory of Vascular Translational Science, Université Paris Diderot Sorbonne Paris Cité, Sorbonne Paris Cité, Faculté de Médecine, Site Xavier Bichat, and Département Hospitalo-Universitaire Fibrosis, Inflammation, and Remodeling, Paris, France
| | - Antonino Nicoletti
- INSERM U1148, Laboratory of Vascular Translational Science, Université Paris Diderot Sorbonne Paris Cité, Sorbonne Paris Cité, Faculté de Médecine, Site Xavier Bichat, and Département Hospitalo-Universitaire Fibrosis, Inflammation, and Remodeling, Paris, France
| | - Sibylle Opsahl Vital
- EA 2496 Pathologies, Imagerie et Biothérapies orofaciales et Plateforme Imagerie du Vivant, Dental School, Université Paris Descartes Sorbonne Paris Cité, Montrouge, France Assistance Publique des Hôpitaux de Paris (AP-HP) Département d'Odontologie, Hôpitaux Universitaires PNVS, Paris, France
| | - Anne Poliard
- EA 2496 Pathologies, Imagerie et Biothérapies orofaciales et Plateforme Imagerie du Vivant, Dental School, Université Paris Descartes Sorbonne Paris Cité, Montrouge, France
| | - Benjamin Salmon
- EA 2496 Pathologies, Imagerie et Biothérapies orofaciales et Plateforme Imagerie du Vivant, Dental School, Université Paris Descartes Sorbonne Paris Cité, Montrouge, France Assistance Publique des Hôpitaux de Paris (AP-HP) Département d'Odontologie, Hôpitaux Universitaires PNVS, Paris, France
| | - Laurent Muller
- Center for Interdisciplinary Research in Biology, Collège de France, Paris, France Inserm U1050, Paris, France CNRS UMRS 7241, Paris, France
| | - Catherine Chaussain
- EA 2496 Pathologies, Imagerie et Biothérapies orofaciales et Plateforme Imagerie du Vivant, Dental School, Université Paris Descartes Sorbonne Paris Cité, Montrouge, France Assistance Publique des Hôpitaux de Paris (AP-HP) Département d'Odontologie, Hôpitaux Universitaires PNVS, Paris, France
| | - Stéphane Germain
- Center for Interdisciplinary Research in Biology, Collège de France, Paris, France Inserm U1050, Paris, France CNRS UMRS 7241, Paris, France
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Lévy J, Cacheux W, Bara MA, L'Hermitte A, Lepage P, Fraudeau M, Trentesaux C, Lemarchand J, Durand A, Crain AM, Marchiol C, Renault G, Dumont F, Letourneur F, Delacre M, Schmitt A, Terris B, Perret C, Chamaillard M, Couty JP, Romagnolo B. Intestinal inhibition of Atg7 prevents tumour initiation through a microbiome-influenced immune response and suppresses tumour growth. Nat Cell Biol 2015; 17:1062-73. [PMID: 26214133 DOI: 10.1038/ncb3206] [Citation(s) in RCA: 135] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 06/18/2015] [Indexed: 02/07/2023]
Abstract
Here, we show that autophagy is activated in the intestinal epithelium in murine and human colorectal cancer and that the conditional inactivation of Atg7 in intestinal epithelial cells inhibits the formation of pre-cancerous lesions in Apc(+/-) mice by enhancing anti-tumour responses. The antibody-mediated depletion of CD8(+) T cells showed that these cells are essential for the anti-tumoral responses mediated by the inhibition of autophagy. We show that Atg7 deficiency leads to intestinal dysbiosis and that the microbiota is required for anticancer responses. In addition, Atg7 deficiency resulted in a stress response accompanied by metabolic defects, AMPK activation and p53-mediated cell-cycle arrest in tumour cells but not in normal tissue. This study reveals that the inhibition of autophagy within the epithelium may prevent the development and progression of colorectal cancer in genetically predisposed patients.
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Affiliation(s)
- Jonathan Lévy
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France
| | - Wulfran Cacheux
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France [3] Department of Medical Oncology, Institut Curie, 26 rue d'Ulm, 75248 Paris Cedex 05, France [4] Pharmacogenomics Unit, Department of Genetics, Institut Curie, 26 rue d'Ulm, 75248 Paris Cedex 05, France
| | - Medhi Ait Bara
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France
| | - Antoine L'Hermitte
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France
| | - Patricia Lepage
- 1] Institut National de la Recherche Agronomique, Micalis UMR1319, Jouy-en-Josas 78352, France [2] AgroParisTech, Micalis UMR1319, 78350 Jouy-en-Josas, France
| | - Marie Fraudeau
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France
| | - Coralie Trentesaux
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France
| | - Julie Lemarchand
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France
| | - Aurélie Durand
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France
| | - Anne-Marie Crain
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France [3] Université Paris Diderot, UFR Sciences du Vivant, Sorbonne Paris Cité, Paris 75013, France
| | - Carmen Marchiol
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France
| | - Gilles Renault
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France
| | - Florent Dumont
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France
| | - Franck Letourneur
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France
| | - Myriam Delacre
- 1] Université Lille Nord de France, Lille 59000, France [2] Institut Pasteur de Lille, Center for Infection and Immunity of Lille, Lille 59800, France [3] Centre National de la Recherche Scientifique, Unité Mixte de Recherche, Lille 59046, France [4] Institut National de la Santé et de la Recherche Médicale, Lille 59045, France
| | - Alain Schmitt
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France
| | - Benoit Terris
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France [3] Service d'Anatomie et Cytologie Pathologiques, AP-HP, Hôpital Cochin, Université Paris Descartes, Paris 75014, France
| | - Christine Perret
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France
| | - Mathias Chamaillard
- 1] Université Lille Nord de France, Lille 59000, France [2] Institut Pasteur de Lille, Center for Infection and Immunity of Lille, Lille 59800, France [3] Centre National de la Recherche Scientifique, Unité Mixte de Recherche, Lille 59046, France [4] Institut National de la Santé et de la Recherche Médicale, Lille 59045, France
| | - Jean-Pierre Couty
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France [3] Université Paris Diderot, UFR Sciences du Vivant, Sorbonne Paris Cité, Paris 75013, France
| | - Béatrice Romagnolo
- 1] Institut Cochin, Université Paris Descartes, Centre National de la Recherche Scientifique (CNRS), UMR8104, Paris 75014, France [2] Institut National de la Sante et de la Recherche Médicale (INSERM), U1016, Paris 75014, France
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14
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Bedarida T, Baron S, Vibert F, Ayer A, Henrion D, Thioulouse E, Marchiol C, Beaudeux JL, Cottart CH, Nivet-Antoine V. Resveratrol Decreases TXNIP mRNA and Protein Nuclear Expressions With an Arterial Function Improvement in Old Mice. J Gerontol A Biol Sci Med Sci 2015; 71:720-9. [PMID: 26041427 DOI: 10.1093/gerona/glv071] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Accepted: 04/24/2015] [Indexed: 01/01/2023] Open
Abstract
Aging leads to a high prevalence of glucose intolerance and cardiovascular diseases, with oxidative stress playing a potential role. Resveratrol has shown promising effects on glucose tolerance and tends to improve endothelial function in elderly patients. Thioredoxin-interacting protein (TXNIP) was recently proposed as a potential link connecting glucose metabolism to oxidative stress. Here, we investigated the resveratrol-induced improvement of arterial aging phenotype in old mice and the expression of aortic TXNIP. Using an in vivo model of old mice with or without 3-month resveratrol treatment, we investigated the effects of resveratrol on age-related impairments from a cardiovascular Doppler analysis, to a molecular level, by studying inflammation and oxidative stress factors. We found a dual effect of resveratrol, with a decrease of age-related glucose intolerance and oxidative stress imbalance leading to reduced matrix remodeling that forestalls arterial aging phenotype in terms of intima-media thickness and arterial distensibility. These results provide the first evidence that aortic TXNIP mRNA and protein nuclear expressions are increased in the arterial aging and decreased by resveratrol treatment. In conclusion, we demonstrated that resveratrol helped to restore several aging impaired processes in old mice, with a decrease of aortic TXNIP mRNA and protein nuclear expressions.
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Affiliation(s)
- Tatiana Bedarida
- Faculty of Pharmacy, Inserm UMRS_1140, Paris, France. Paris Descartes University, Sorbonne Paris Cité, Paris, France.
| | - Stephanie Baron
- Paris Descartes University, Sorbonne Paris Cité, Paris, France. Department of Physiology, Georges Pompidou European Hospital, AP-HP, Paris, France
| | - Françoise Vibert
- Paris Descartes University, Sorbonne Paris Cité, Paris, France. Faculty of Pharmacy, UMR-S 1139, Paris, France
| | - Audrey Ayer
- CNRS UMR 6214, INSERM U1083, Angers University, Angers, France
| | - Daniel Henrion
- CNRS UMR 6214, INSERM U1083, Angers University, Angers, France
| | | | - Carmen Marchiol
- Paris Descartes University, Sorbonne Paris Cité, Paris, France. PIPA, Cochin Institute - U1016, Paris, France
| | - Jean-Louis Beaudeux
- Paris Descartes University, Sorbonne Paris Cité, Paris, France. Faculty of Pharmacy, UMR-S 1139, Paris, France. Clinical Biochemistry, Necker Hospital, AP-HP, Paris, France
| | - Charles-Henry Cottart
- Paris Descartes University, Sorbonne Paris Cité, Paris, France. Clinical Biochemistry, Necker Hospital, AP-HP, Paris, France
| | - Valerie Nivet-Antoine
- Faculty of Pharmacy, Inserm UMRS_1140, Paris, France. Paris Descartes University, Sorbonne Paris Cité, Paris, France. Department of Biochemistry, Georges Pompidou European Hospital, AP-HP, Paris, France
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15
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Elhai M, Chiocchia G, Marchiol C, Lager F, Renault G, Colonna M, Bernhardt G, Allanore Y, Avouac J. Targeting CD226/DNAX accessory molecule-1 (DNAM-1) in collagen-induced arthritis mouse models. J Inflamm (Lond) 2015; 12:9. [PMID: 25685070 PMCID: PMC4327789 DOI: 10.1186/s12950-015-0056-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 01/26/2015] [Indexed: 12/17/2022]
Abstract
Background Genetic studies have pointed out that CD226 variants, encoding DNAM-1, could be associated with susceptibility to rheumatoid arthritis. Therefore, we aimed to determine the influence of DNAM-1 on the development of arthritis using the collagen-induced arthritis (CIA) mouse model. Methods CIA was induced in mice on a DBA/1 background, treated in parallel with a DNAM-1 neutralizing monoclonal antibody, a control IgG and PBS, respectively. CIA was also induced in mice deficient for DNAM-1(dnam1−/−) and control dnam-1+/+ mice on a C57/BL6 background. Mice were monitored for clinical and ultrasound signs of arthritis. Histological analysis was performed to search for inflammatory infiltrates and erosions. The Mann–Whitney U test for non-related samples was used for statistical analysis. Results There was a non-significant trend for a less arthritic phenotype in mice receiving anti-DNAM-1 mAb at both clinical, ultrasound and histological assessments. But, we did not observe any difference between dnam1+/+ and dnam1−/− mice for incidence nor severity of clinical arthritis. Histological analysis revealed inflammatory scores similar in both groups, without evidence of erosion. Collagen antibodies levels were similar in all mice, confirming immunization with collagen. Conclusion Despite some clues suggesting a role of DNAM-1 in arthritis, these complementary approaches demonstrate no contribution of CD226/DNAM-1 in the arthritic phenotype. These results contrast with previous studies showing a role in vivo of DNAM-1 in some autoimmune disorders. Electronic supplementary material The online version of this article (doi:10.1186/s12950-015-0056-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Muriel Elhai
- Rheumatology A department, Cochin Hospital, Paris Descartes University, Sorbonne Paris Cité, 27 rue du Faubourg Saint Jacques, 75014 Paris, France ; Cochin Institut, INSERM U1016, UMR 8104, Team ATIP/AVENIR, Paris Descartes University, Paris, France
| | - Gilles Chiocchia
- Inserm U987, Université Versailles-Saint-Quentin, Montigny-Le-Bretonneux, France
| | - Carmen Marchiol
- Small Animal Imaging Facility, Paris Descartes University, INSERM U1016, Institut Cochin, Sorbonne Paris Cité, Paris, France
| | - Franck Lager
- Small Animal Imaging Facility, Paris Descartes University, INSERM U1016, Institut Cochin, Sorbonne Paris Cité, Paris, France
| | - Gilles Renault
- Small Animal Imaging Facility, Paris Descartes University, INSERM U1016, Institut Cochin, Sorbonne Paris Cité, Paris, France
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, USA
| | | | - Yannick Allanore
- Rheumatology A department, Cochin Hospital, Paris Descartes University, Sorbonne Paris Cité, 27 rue du Faubourg Saint Jacques, 75014 Paris, France ; Cochin Institut, INSERM U1016, UMR 8104, Team ATIP/AVENIR, Paris Descartes University, Paris, France
| | - Jérôme Avouac
- Rheumatology A department, Cochin Hospital, Paris Descartes University, Sorbonne Paris Cité, 27 rue du Faubourg Saint Jacques, 75014 Paris, France ; Cochin Institut, INSERM U1016, UMR 8104, Team ATIP/AVENIR, Paris Descartes University, Paris, France
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16
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Elhai M, Marchiol C, Renault G, Ruiz B, Fréchet M, Chiocchia G, Allanore Y. Performance of skin ultrasound to measure skin involvement in different animal models of systemic sclerosis. Ultrasound Med Biol 2013; 39:845-852. [PMID: 23465138 DOI: 10.1016/j.ultrasmedbio.2012.12.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2012] [Revised: 11/30/2012] [Accepted: 12/03/2012] [Indexed: 06/01/2023]
Abstract
Animal models are widely used in systemic sclerosis (SSc) research. We set out to determine whether ultrasonography (US) could be used to assess skin fibrosis in two complementary SSc-models: the bleomycin-induced dermal fibrosis model and the tight-skin 1 mouse model. Back skin thickness was measured using a high-frequency ultrasound dedicated to the small animal. There was no significant difference in dermal thickness measured by US between mice injected with bleomycin and those treated with NaCl. These results were inconsistent with histological analyses. Mean US hypodermal thickness was significantly higher in tight-skin 1 mice as compared with Pa/Pa control subgroup (p = 0.02). Histologic and US measures of dermal and hypodermal thicknesses in this model were well correlated (r = 0.79). The intra-observer concordance was 0.96 for hypodermal thickness. US is reliable and sensitive in detecting hypodermal thickening in the tight-skin 1 mouse model. Further larger studies are warranted to better determine the place of US in SSc-research.
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Affiliation(s)
- Muriel Elhai
- Paris Descartes University, INSERM U1016, Institut Cochin, Sorbonne Paris Cité, Paris, France
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17
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Cochain C, Auvynet C, Poupel L, Vilar J, Dumeau E, Richart A, Récalde A, Zouggari Y, Yin KYHW, Bruneval P, Renault G, Marchiol C, Bonnin P, Lévy B, Bonecchi R, Locati M, Combadière C, Silvestre JS. The chemokine decoy receptor D6 prevents excessive inflammation and adverse ventricular remodeling after myocardial infarction. Arterioscler Thromb Vasc Biol 2012; 32:2206-13. [PMID: 22796582 DOI: 10.1161/atvbaha.112.254409] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Leukocyte infiltration in ischemic areas is a hallmark of myocardial infarction, and overwhelming infiltration of innate immune cells has been shown to promote adverse remodeling and cardiac rupture. Recruitment of inflammatory cells in the ischemic heart depends highly on the family of CC-chemokines and their receptors. Here, we hypothesized that the chemokine decoy receptor D6, which specifically binds and scavenges inflammatory CC-chemokines, might limit inflammation and adverse cardiac remodeling after infarction. METHODS AND RESULTS D6 was expressed in human and murine infarcted myocardium. In a murine model of myocardial infarction, D6 deficiency led to increased chemokine (C-C motif) ligand 2 and chemokine (C-C motif) ligand 3 levels in the ischemic heart. D6-deficient (D6(-/-)) infarcts displayed increased infiltration of pathogenic neutrophils and Ly6Chi monocytes, associated with strong matrix metalloproteinase-9 and matrix metalloproteinase-2 activities in the ischemic heart. D6(-/-) mice were cardiac rupture prone after myocardial infarction, and functional analysis revealed that D6(-/-) hearts had features of adverse remodeling with left ventricle dilation and reduced ejection fraction. Bone marrow chimera experiments showed that leukocyte-borne D6 had no role in this setting, and that leukocyte-specific chemokine (C-C motif) receptor 2 deficiency rescued the adverse phenotype observed in D6(-/-) mice. CONCLUSIONS We show for the first time that the chemokine decoy receptor D6 limits CC-chemokine-dependent pathogenic inflammation and is required for adequate cardiac remodeling after myocardial infarction.
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MESH Headings
- Animals
- Antigens, Ly/metabolism
- Bone Marrow Transplantation
- Chemokine CCL2/metabolism
- Chemokine CCL3/metabolism
- Chemotaxis
- Disease Models, Animal
- Genotype
- Heart Rupture, Post-Infarction/immunology
- Heart Rupture, Post-Infarction/pathology
- Humans
- Hypertrophy, Left Ventricular/immunology
- Hypertrophy, Left Ventricular/pathology
- Inflammation/genetics
- Inflammation/immunology
- Inflammation/metabolism
- Inflammation/pathology
- Inflammation/prevention & control
- Inflammation Mediators/metabolism
- Matrix Metalloproteinase 2/metabolism
- Matrix Metalloproteinase 9/metabolism
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Monocytes/immunology
- Myocardial Infarction/complications
- Myocardial Infarction/diagnostic imaging
- Myocardial Infarction/genetics
- Myocardial Infarction/immunology
- Myocardial Infarction/metabolism
- Myocardial Infarction/physiopathology
- Myocardium/immunology
- Myocardium/metabolism
- Myocardium/pathology
- Neutrophil Infiltration
- Neutrophils/immunology
- Phenotype
- Receptors, CCR10/metabolism
- Receptors, CCR2/deficiency
- Receptors, CCR2/genetics
- Receptors, Chemokine/deficiency
- Receptors, Chemokine/genetics
- Receptors, Chemokine/metabolism
- Signal Transduction
- Stroke Volume
- Ultrasonography
- Ventricular Function, Left
- Ventricular Remodeling
- Chemokine Receptor D6
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Affiliation(s)
- Clément Cochain
- Université Paris Descartes, INSERM UMR-S970, Paris Cardiovascular Research Center, Hôpital Européen Georges Pompidou. Paris, France
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18
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Couty JP, Crain AM, Gerbaud S, Labasque M, Marchiol C, Fradelizi D, Boudaly S, Guettier C, Vignuzzi M, van der Werf S, Escriou N, Viguier M. Delivery of mengovirus-derived RNA replicons into tumoural liver enhances the anti-tumour efficacy of a peripheral peptide-based vaccine. Cancer Immunol Immunother 2008; 57:1161-71. [PMID: 18256833 PMCID: PMC11030607 DOI: 10.1007/s00262-007-0448-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [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: 10/30/2007] [Accepted: 12/27/2007] [Indexed: 01/22/2023]
Abstract
Hepatocellular carcinoma is a deadly cancer with growing incidence for which immunotherapy is one of the most promising therapeutic approach. Peptide-based vaccines designed to induce strong, sustained CD8+ T cell responses are effective in animal models and cancer patients. We demonstrated the efficacy of curative peptide-based immunisation against a unique epitope of SV40 tumour antigen, through the induction of a strong CD8+ T cell-specific response, in our liver tumour model. However, as in human clinical trials, most tumour antigen epitopes did not induce a therapeutic effect, despite inducing strong CD8+ T cell responses. We therefore modified the tumour environment to enhance peptide-based vaccine efficacy by delivering mengovirus (MV)-derived RNA autoreplicating sequences (MV-RNA replicons) into the liver. The injection of replication-competent RNA replicons into the liver converted partial tumour regression into tumour eradication, whereas non-replicating RNA had no such effect. Replicating RNA replicon injection induced local recruitment of innate immunity effectors (NK and NKT) to the tumour and did not affect specific CD8+ T cell populations or other myelolymphoid subsets. The local delivery of such RNA replicons into tumour stroma is therefore a promising strategy complementary to the use of peripheral peptide-based vaccines for treating liver tumours.
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Affiliation(s)
- Jean-Pierre Couty
- Institut Cochin, Département Endocrinologie-Métabolisme et Cancer (EMC), Institut National de la Santé et de la Recherche Médicale INSERM U567, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
- Centre National de la Recherche Scientifique, CNRS UMR 8104, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
- Université Paris-Descartes, Bâtiment Faculté, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
- Université Paris Diderot, 2, place Jussieu, 75251 Paris Cedex 05, France
| | - Anne-Marie Crain
- Institut Cochin, Département Endocrinologie-Métabolisme et Cancer (EMC), Institut National de la Santé et de la Recherche Médicale INSERM U567, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
- Centre National de la Recherche Scientifique, CNRS UMR 8104, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
- Université Paris-Descartes, Bâtiment Faculté, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
- Université Paris Diderot, 2, place Jussieu, 75251 Paris Cedex 05, France
| | - Sylvie Gerbaud
- Institut Pasteur, Unité de Génétique Moléculaire des Virus Respiratoires, Unité de Recherche Associée URA 1966, Centre National de la Recherche Scientifique, CNRS, 25, rue du Docteur Roux, 75724 Paris Cedex 15, France
- Université Paris Diderot, Laboratoire associé, 2 Place Jussieu, 75251 Paris Cedex 05, France
| | - Marilyne Labasque
- Institut Cochin, Département Endocrinologie-Métabolisme et Cancer (EMC), Institut National de la Santé et de la Recherche Médicale INSERM U567, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
- Centre National de la Recherche Scientifique, CNRS UMR 8104, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
- Université Paris-Descartes, Bâtiment Faculté, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
- Université Paris Diderot, 2, place Jussieu, 75251 Paris Cedex 05, France
| | - Carmen Marchiol
- Institut Cochin, Département Endocrinologie-Métabolisme et Cancer (EMC), Institut National de la Santé et de la Recherche Médicale INSERM U567, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
- Centre National de la Recherche Scientifique, CNRS UMR 8104, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
- Université Paris-Descartes, Bâtiment Faculté, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
| | - Didier Fradelizi
- Institut Cochin, Département Endocrinologie-Métabolisme et Cancer (EMC), Institut National de la Santé et de la Recherche Médicale INSERM U567, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
- Centre National de la Recherche Scientifique, CNRS UMR 8104, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
- Université Paris-Descartes, Bâtiment Faculté, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
| | - Sarah Boudaly
- Université Paris Diderot, 2, place Jussieu, 75251 Paris Cedex 05, France
- Laboratoire d’Immunologie Cellulaire et Immunopathologie de l’Ecole Pratique des Hautes Etudes, Institut Universitaire d’Hématologie, Unité Mixte de Recherche UMR 7151, Centre National de la Recherche Scientifique, CNRS, Hôpital Saint-Louis, 75010 Paris, France
| | - Catherine Guettier
- Centre Hépatobiliaire, laboratoire d’Anatomie Pathologique, Hôpital Paul Brousse, 14, avenue Paul Vaillant Couturier, 94804 Villejuif, France
| | - Marco Vignuzzi
- Institut Pasteur, Unité de Génétique Moléculaire des Virus Respiratoires, Unité de Recherche Associée URA 1966, Centre National de la Recherche Scientifique, CNRS, 25, rue du Docteur Roux, 75724 Paris Cedex 15, France
- Université Paris Diderot, Laboratoire associé, 2 Place Jussieu, 75251 Paris Cedex 05, France
| | - Sylvie van der Werf
- Institut Pasteur, Unité de Génétique Moléculaire des Virus Respiratoires, Unité de Recherche Associée URA 1966, Centre National de la Recherche Scientifique, CNRS, 25, rue du Docteur Roux, 75724 Paris Cedex 15, France
- Université Paris Diderot, Laboratoire associé, 2 Place Jussieu, 75251 Paris Cedex 05, France
| | - Nicolas Escriou
- Institut Pasteur, Unité de Génétique Moléculaire des Virus Respiratoires, Unité de Recherche Associée URA 1966, Centre National de la Recherche Scientifique, CNRS, 25, rue du Docteur Roux, 75724 Paris Cedex 15, France
- Université Paris Diderot, Laboratoire associé, 2 Place Jussieu, 75251 Paris Cedex 05, France
| | - Mireille Viguier
- Institut Cochin, Département Endocrinologie-Métabolisme et Cancer (EMC), Institut National de la Santé et de la Recherche Médicale INSERM U567, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
- Centre National de la Recherche Scientifique, CNRS UMR 8104, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
- Université Paris-Descartes, Bâtiment Faculté, 24, rue du Faubourg Saint-Jacques, 75014 Paris, France
- Université Paris Diderot, 2, place Jussieu, 75251 Paris Cedex 05, France
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19
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Belnoue E, Guettier C, Kayibanda M, Le Rond S, Crain-Denoyelle AM, Marchiol C, Ziol M, Fradelizi D, Rénia L, Viguier M. Regression of Established Liver Tumor Induced by Monoepitopic Peptide-Based Immunotherapy. J Immunol 2004; 173:4882-8. [PMID: 15470029 DOI: 10.4049/jimmunol.173.8.4882] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Most types of cancer are difficult to eradicate, and some, like hepatocellular carcinoma, are almost always fatal. Among various interventions to improve the survival of patients with cancer, immunotherapy seems to hold some promises. However, it requires relevant animal models for preclinical development. In this study we report a new and relevant experimental model where liver tumors grow inside a nontumoral parenchyma of adult mice. This model is based on the intrasplenic injection in syngeneic recipient mice of hepatocytes from transgenic mice expressing SV40 large T oncogene specifically in the liver. Using this model where no apparent spontaneous cellular immune response was observed, immunization using a single injection of monoepitopic SV40 T Ag short peptide was sufficient to provoke liver tumor destruction, leading rapidly to complete remission. Tumor regression was associated with the induction of a long-lasting CD8+ T cell response, observed not only in the spleen but also, more importantly, in the tumoral liver. These results show the efficacy of peptide immunotherapy in the treatment of liver cancer.
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Affiliation(s)
- Elodie Belnoue
- Département d'Immunologie, Institut Cochin, Institut National de la Santé et de la Recherche Médicale, Unité 567, Centre National de la Recherche Scientifique, Université René Descartes, Hôpital Cochin, France
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20
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Kamate C, Baloul S, Grootenboer S, Pessis E, Chevrot A, Tulliez M, Marchiol C, Viguier M, Fradelizi D. Inflammation and cancer, the mastocytoma P815 tumor model revisited: triggering of macrophage activation in vivo with pro-tumorigenic consequences. Int J Cancer 2002; 100:571-9. [PMID: 12124807 DOI: 10.1002/ijc.10519] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Subcutaneous in vivo injections of cells of the mastocytoma line P815 in syngenic DBA/2 mice induce locally fast growing solid tumors. These have been used extensively as a cancer model to analyze and manipulate the relationship between tumor cells and host's immune defenses. We report that progression of P815 tumors in vivo was accompanied by a burst (Days 5-7) of local inflammatory cells recruitment and angiogenesis observed histologically, corroborated in vivo by MRI with gadolinium, overtranscription of macrophage activation marker genes, secretion of TNF-alpha by regional lymph node cells and concomitant systemic inflammation. No substantial overtranscriptions of either VEGF or IL-10 or TGF-beta genes were observed. Induction of COX-2 gene was a late event. To establish a possible relationship between the tumor-induced local, regional and systemic increase of pro-inflammatory mediators and progression of tumors in vivo, we carried out experiments deliberately modulating the inflammatory status of the recipient animals. Pretreatment of recipient animals by i.p. injection of thioglycolate accelerated P815 tumor growth. At the opposite, treatment of mice with either a COX-1 + COX-2 inhibitor (aspirin, 1 mg/day/mouse) or a specific COX-2 inhibitor (celecoxib, 0.13 mg/day/mouse) for 2 weeks after injection of tumor cells, significantly reduced the size and growth rate of tumors compared to control mice. Experiments carried out in vitro indicated that peritoneal macrophages from untreated animals were strongly activated by live P815 cells and by P815 membrane preparations. The tumor-induced inflammatory reaction could establish a local micro environment favoring tumor progression. The P815 tumor model might be helpful to recognize important factors controlling host/tumor relationship.
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Affiliation(s)
- Caroline Kamate
- Département d'Immunologie, Institut Cochin, INSERM-CNRS-Université Paris V, Hôpital Cochin, Paris, France
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Harel-Bellan A, Quillet A, Marchiol C, Gerard JP, Fradelizi D. Lack of reconstitution of nude mice alloreactivity by purified interleukin 2 and induction of non-H-2-specific effector cells by crude supernatants. Cell Immunol 1987; 105:251-61. [PMID: 3494525 DOI: 10.1016/0008-8749(87)90074-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
To verify or to challenge the reports indicating that IL-2 was the only molecule involved in the reconstitution of nu/nu mice alloreactivity in vitro, Balb/c (H-2d) nu/nu spleen cells were primed in culture against C57/B16 (H-2b) in the presence of crude IL-2-containing supernatants or purified IL-2. The generation of cytotoxic effectors was evaluated against a panel of 51Cr-labeled target cells. Although crude IL-2-containing supernatants sustained the generation of cytotoxic effectors, purified "natural" IL-2 (from different origins) and recombinant IL-2 were not able to do so. Con A or PHA were identified as cofactors synergizing with IL-2 to induce effectors from nu/nu spleen cells. These effectors efficiently lysed EL4 (H-2b, tumor line), but not mitogen-induced blast cells from the same strain. They also lysed targets bearing irrelevant allogenic H-2 specificities. Cold competition experiments confirmed the lack of H-2 specificity of such effectors: lysis of EL4 cells (H-2b) was inhibited strongly by YAC-1 cells (H-2a, very sensitive to NK lysis) or P815 cells (H-2d, autologous to the nu/nu effectors). Our results clearly challenge earlier conclusions and indicate that IL-2 alone does not reconstitute nude mice alloreactivity. Crude supernatants containing IL-2 and mitogen induce nonspecific effectors with patterns of reactivity similar to those of activated natural killers. We think that the cytotoxicity observed in these conditions in nude mice results from the mitogenic triggering of some kind of prethymic killer cells which subsequently are expanded by IL-2.
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MESH Headings
- Animals
- Cell Communication/drug effects
- Chromatography, Gel/methods
- Culture Media/analysis
- Cytotoxicity, Immunologic/drug effects
- Female
- H-2 Antigens/immunology
- Immunity, Cellular/drug effects
- Interleukin-2/pharmacology
- Killer Cells, Natural/drug effects
- Killer Cells, Natural/immunology
- Lymphocyte Activation/drug effects
- Mice
- Mice, Inbred Strains
- Mice, Nude/immunology
- Phytohemagglutinins
- Spleen/cytology
- T-Lymphocytes, Cytotoxic/drug effects
- T-Lymphocytes, Cytotoxic/immunology
- Transplantation, Homologous
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Harel-Bellan A, Quillet A, Marchiol C, DeMars R, Tursz T, Fradelizi D. Natural killer susceptibility of human cells may be regulated by genes in the HLA region on chromosome 6. Proc Natl Acad Sci U S A 1986; 83:5688-92. [PMID: 2426704 PMCID: PMC386354 DOI: 10.1073/pnas.83.15.5688] [Citation(s) in RCA: 102] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Natural killer (NK) cells exist in each individual in the absence of any intentional immunization. They are able to kill a wide range of targets from tumoral as well as from normal origin. However, their exact physiologic role is not clearly understood. In this study we report results about a human Epstein-Barr virus-transformed B-cell line from which variants perturbed in the expression of HLA molecules have been derived. Our results indicate that in these cell lines an inverse relationship exists between expression of HLA antigens and susceptibility to NK lysis. The original cell line is highly resistant to NK lysis. On the contrary, the variant perturbed in class I antigen expression is highly susceptible. Variant perturbed in class II antigen expression is intermediate in susceptibility. Interferon, which induces HLA class I expression and NK resistance in the unrelated classical K-562 target cells, does not change either HLA expression or NK susceptibility in the variant cell lines. The difference between the original cell line and the variants does not reside in the ability to be bound by NK effectors. Our results suggest a different role for HLA molecules. By some unknown mechanism discussed here, the presence of HLA molecules at the surface of a cell would prevent this cell from being killed by NK cells. The loss of this "good health" signal would lead to the elimination of the cell through NK lysis.
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Harel-Bellan A, Bertoglio J, Quillet A, Marchiol C, Wakasugi H, Mishall Z, Fradelizi D. Interleukin 2 (IL 2) up-regulates its own receptor on a subset of human unprimed peripheral blood lymphocytes and triggers their proliferation. J Immunol 1986; 136:2463-9. [PMID: 3005412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Several reports indicate that human peripheral blood lymphocytes (PBL) seeded in culture with purified or recombinant interleukin 2 (IL 2) immediately after separation from the blood display a substantial level of proliferation at day 5 or 6, even in the absence of any activating signal. The spontaneously IL 2 proliferating cells are large lymphocytes, and they co-purify on a Percoll gradient in the large granular lymphocytes (third (LGL) fraction) together with the natural killer (NK) activity. When LGL were separated into NKH1 (an NK-specific surface marker)-positive and NKH1-negative cells by fluorescence-activated cell sorting (FACS), proliferating cells were mainly found in the NKH1-negative fraction. On the contrary, when cells from Percoll fraction 3 were separated into OKT3-negative and positive cells, the majority of the proliferating cell was found in the OKT3-positive cells. These results indicate that spontaneously IL 2 proliferating (SIP) cells most probably belong to the T cell lineage, but are distinct from NK cells. Surprisingly, cells from this Percoll fraction examined immediately after separation from the blood do not express detectable amounts of IL 2 receptors as assessed by three different techniques: binding of [3H]IL 2, binding of [125I]anti-Tac antibodies, and FACS analysis with the use of anti-Tac antibodies. However, after 18 hr of culture in IL 2-supplemented medium, 5 to 7% of these cells became Tac-positive by FACS analysis. Additional analysis of IL 2 receptor induced in culture with IL 2 was performed by [125I]anti-TAC binding and by [3H]IL 2 binding. Scatchard analysis of [3H]IL 2 binding, in the range of concentrations leading to the detection of high-affinity binding sites, showed an affinity constant similar to that of conventional phytohemagglutinin blasts. The role of IL 2/IL 2 receptor interaction in the proliferation process was confirmed by the fact that proliferation, in contrast with NK activation, was clearly inhibited by anti-Tac antibodies. When LGL activated with IL 2 for 60 hr were sorted into Tac+ and Tac- cells, equal levels of NK activity was found in the two fractions. Proliferation, however, was only observed in the Tac+ population. We interpret these results to indicate that SIP cells are preactivated cells circulating in the blood. They are large cells and represent a very small proportion of circulating lymphocytes (0.3%). They express a subliminal amount of IL 2 receptor. Cultivated in the presence of IL 2, IL 2 receptor expression is enhanced to a detectable level, and the SIP cells begin to proliferate. These SIP cells could be activated T cells present in every normal individual.
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MESH Headings
- Antibodies, Monoclonal/physiology
- Antigens, Surface/analysis
- Antigens, Surface/immunology
- Binding, Competitive
- Cell Separation
- Centrifugation, Density Gradient
- Humans
- Interleukin-2/metabolism
- Interleukin-2/physiology
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Lymphocyte Activation
- Phenotype
- Receptors, Immunologic/biosynthesis
- Receptors, Interleukin-2
- T-Lymphocytes/classification
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- Time Factors
- Tumor Necrosis Factor Receptor Superfamily, Member 7
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Harel-Bellan A, Bertoglio J, Quillet A, Marchiol C, Wakasugi H, Mishall Z, Fradelizi D. Interleukin 2 (IL 2) up-regulates its own receptor on a subset of human unprimed peripheral blood lymphocytes and triggers their proliferation. The Journal of Immunology 1986. [DOI: 10.4049/jimmunol.136.7.2463] [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] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
Several reports indicate that human peripheral blood lymphocytes (PBL) seeded in culture with purified or recombinant interleukin 2 (IL 2) immediately after separation from the blood display a substantial level of proliferation at day 5 or 6, even in the absence of any activating signal. The spontaneously IL 2 proliferating cells are large lymphocytes, and they co-purify on a Percoll gradient in the large granular lymphocytes (third (LGL) fraction) together with the natural killer (NK) activity. When LGL were separated into NKH1 (an NK-specific surface marker)-positive and NKH1-negative cells by fluorescence-activated cell sorting (FACS), proliferating cells were mainly found in the NKH1-negative fraction. On the contrary, when cells from Percoll fraction 3 were separated into OKT3-negative and positive cells, the majority of the proliferating cell was found in the OKT3-positive cells. These results indicate that spontaneously IL 2 proliferating (SIP) cells most probably belong to the T cell lineage, but are distinct from NK cells. Surprisingly, cells from this Percoll fraction examined immediately after separation from the blood do not express detectable amounts of IL 2 receptors as assessed by three different techniques: binding of [3H]IL 2, binding of [125I]anti-Tac antibodies, and FACS analysis with the use of anti-Tac antibodies. However, after 18 hr of culture in IL 2-supplemented medium, 5 to 7% of these cells became Tac-positive by FACS analysis. Additional analysis of IL 2 receptor induced in culture with IL 2 was performed by [125I]anti-TAC binding and by [3H]IL 2 binding. Scatchard analysis of [3H]IL 2 binding, in the range of concentrations leading to the detection of high-affinity binding sites, showed an affinity constant similar to that of conventional phytohemagglutinin blasts. The role of IL 2/IL 2 receptor interaction in the proliferation process was confirmed by the fact that proliferation, in contrast with NK activation, was clearly inhibited by anti-Tac antibodies. When LGL activated with IL 2 for 60 hr were sorted into Tac+ and Tac- cells, equal levels of NK activity was found in the two fractions. Proliferation, however, was only observed in the Tac+ population. We interpret these results to indicate that SIP cells are preactivated cells circulating in the blood. They are large cells and represent a very small proportion of circulating lymphocytes (0.3%). They express a subliminal amount of IL 2 receptor. Cultivated in the presence of IL 2, IL 2 receptor expression is enhanced to a detectable level, and the SIP cells begin to proliferate. These SIP cells could be activated T cells present in every normal individual.
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Harel-Bellan A, Marchiol C, Kaplan C, Muller JY, Chouaib S, Ythier A, Nowill A, Fradelizi D. Improved culture conditions for quantitative evaluation of interleukin 2 production by frozen human lymphocytes. J Immunol Methods 1983; 64:61-9. [PMID: 6605999 DOI: 10.1016/0022-1759(83)90384-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Several culture parameters were studied in order to establish methods for optimal and reproducible production of interleukin 2 (IL2) by thawed lymphocytes. Standard conditions, considered optimal for production by freshly separated lymphocytes (culture medium RPMI 1640 + 1% normal human serum + 10 micrograms/ml PHA), gave low and poorly reproducible results. An increased concentration of human serum (10 and 20%) in the medium improved production but best results were obtained by adding polyethylene glycol (PEG 6000, 0.1 mg/ml) to the culture medium. Furthermore, with the addition of PEG 6000, results became highly reproducible, thus permitting valid comparison of in vitro IL2 production by lymphocytes from normal donors and patients.
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