1
|
Nedara K, Reinhardt C, Lebraud E, Arena G, Gracia C, Buard V, Pioche-Durieu C, Castelli F, Colsch B, Bénit P, Rustin P, Albaud B, Gestraud P, Baulande S, Servant N, Deutsch E, Verbavatz JM, Brenner C, Milliat F, Modjtahedi N. Relevance of the TRIAP1/p53 axis in colon cancer cell proliferation and adaptation to glutamine deprivation. Front Oncol 2022; 12:958155. [DOI: 10.3389/fonc.2022.958155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 10/10/2022] [Indexed: 11/13/2022] Open
Abstract
Human TRIAP1 (TP53-regulated inhibitor of apoptosis 1; also known as p53CSV for p53-inducible cell survival factor) is the homolog of yeast Mdm35, a well-known chaperone that interacts with the Ups/PRELI family proteins and participates in the intramitochondrial transfer of lipids for the synthesis of cardiolipin (CL) and phosphatidylethanolamine. Although recent reports indicate that TRIAP1 is a prosurvival factor abnormally overexpressed in various types of cancer, knowledge about its molecular and metabolic function in human cells is still elusive. It is therefore critical to understand the metabolic and proliferative advantages that TRIAP1 expression provides to cancer cells. Here, in a colorectal cancer cell model, we report that the expression of TRIAP1 supports cancer cell proliferation and tumorigenesis. Depletion of TRIAP1 perturbed the mitochondrial ultrastructure, without a major impact on CL levels and mitochondrial activity. TRIAP1 depletion caused extramitochondrial perturbations resulting in changes in the endoplasmic reticulum-dependent lipid homeostasis and induction of a p53-mediated stress response. Furthermore, we observed that TRIAP1 depletion conferred a robust p53-mediated resistance to the metabolic stress caused by glutamine deprivation. These findings highlight the importance of TRIAP1 in tumorigenesis and indicate that the loss of TRIAP1 has extramitochondrial consequences that could impact on the metabolic plasticity of cancer cells and their response to conditions of nutrient deprivation.
Collapse
|
2
|
Morilla I, Chan P, Caffin F, Svilar L, Selbonne S, Ladaigue S, Buard V, Tarlet G, Micheau B, Paget V, François A, Souidi M, Martin JC, Vaudry D, Benadjaoud MA, Milliat F, Guipaud O. Deep models of integrated multiscale molecular data decipher the endothelial cell response to ionizing radiation. iScience 2022; 25:103685. [PMID: 35106469 PMCID: PMC8786676 DOI: 10.1016/j.isci.2021.103685] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 10/04/2021] [Accepted: 12/22/2021] [Indexed: 12/24/2022] Open
Abstract
The vascular endothelium is a hot spot in the response to radiation therapy for both tumors and normal tissues. To improve patient outcomes, interpretable systemic hypotheses are needed to help radiobiologists and radiation oncologists propose endothelial targets that could protect normal tissues from the adverse effects of radiation therapy and/or enhance its antitumor potential. To this end, we captured the kinetics of multi-omics layers-i.e. miRNome, targeted transcriptome, proteome, and metabolome-in irradiated primary human endothelial cells cultured in vitro. We then designed a strategy of deep learning as in convolutional graph networks that facilitates unsupervised high-level feature extraction of important omics data to learn how ionizing radiation-induced endothelial dysfunction may evolve over time. Last, we present experimental data showing that some of the features identified using our approach are involved in the alteration of angiogenesis by ionizing radiation.
Collapse
Affiliation(s)
- Ian Morilla
- IRSN, Radiobiology of Medical Exposure Laboratory (LRMed), Human Health Radiation Protection Unit, 92260 Fontenay-Aux-Roses, France
- Corresponding author
| | - Philippe Chan
- Normandie Univ, UNIROUEN, PISSARO Proteomic Platform, 76821 Mont Saint-Aignan, France
| | - Fanny Caffin
- IRSN, Radiobiology of Medical Exposure Laboratory (LRMed), Human Health Radiation Protection Unit, 92260 Fontenay-Aux-Roses, France
| | - Ljubica Svilar
- Aix Marseille Univ, INSERM, INRA, C2VN, 13007 Marseille, France
- CriBioM, Criblage Biologique Marseille, Faculté de Médecine de la Timone, 13205 Marseille Cedex 01, France
| | - Sonia Selbonne
- IRSN, Radiobiology of Medical Exposure Laboratory (LRMed), Human Health Radiation Protection Unit, 92260 Fontenay-Aux-Roses, France
| | - Ségolène Ladaigue
- IRSN, Radiobiology of Medical Exposure Laboratory (LRMed), Human Health Radiation Protection Unit, 92260 Fontenay-Aux-Roses, France
- Sorbonne University, Doctoral College, 75005 Paris, France
| | - Valérie Buard
- IRSN, Radiobiology of Medical Exposure Laboratory (LRMed), Human Health Radiation Protection Unit, 92260 Fontenay-Aux-Roses, France
| | - Georges Tarlet
- IRSN, Radiobiology of Medical Exposure Laboratory (LRMed), Human Health Radiation Protection Unit, 92260 Fontenay-Aux-Roses, France
| | - Béatrice Micheau
- IRSN, Radiobiology of Medical Exposure Laboratory (LRMed), Human Health Radiation Protection Unit, 92260 Fontenay-Aux-Roses, France
| | - Vincent Paget
- IRSN, Radiobiology of Medical Exposure Laboratory (LRMed), Human Health Radiation Protection Unit, 92260 Fontenay-Aux-Roses, France
| | - Agnès François
- IRSN, Radiobiology of Medical Exposure Laboratory (LRMed), Human Health Radiation Protection Unit, 92260 Fontenay-Aux-Roses, France
| | - Maâmar Souidi
- IRSN, Radiobiology of Accidental Exposure Laboratory (LRAcc), Human Health Radiation Protection Unit, 92260 Fontenay-Aux-Roses, France
| | - Jean-Charles Martin
- Aix Marseille Univ, INSERM, INRA, C2VN, 13007 Marseille, France
- CriBioM, Criblage Biologique Marseille, Faculté de Médecine de la Timone, 13205 Marseille Cedex 01, France
| | - David Vaudry
- Normandie Univ, UNIROUEN, PISSARO Proteomic Platform, 76821 Mont Saint-Aignan, France
| | - Mohamed-Amine Benadjaoud
- IRSN, Radiobiology and Regenerative Medicine Research Service (SERAMED), 92260 Fontenay-Aux-Roses, France
| | - Fabien Milliat
- IRSN, Radiobiology of Medical Exposure Laboratory (LRMed), Human Health Radiation Protection Unit, 92260 Fontenay-Aux-Roses, France
| | - Olivier Guipaud
- IRSN, Radiobiology of Medical Exposure Laboratory (LRMed), Human Health Radiation Protection Unit, 92260 Fontenay-Aux-Roses, France
- Corresponding author
| |
Collapse
|
3
|
Bertho A, Dos Santos M, Braga-Cohen S, Buard V, Paget V, Guipaud O, Tarlet G, Milliat F, François A. Preclinical Model of Stereotactic Ablative Lung Irradiation Using Arc Delivery in the Mouse: Is Fractionation Worthwhile? Front Med (Lausanne) 2022; 8:794324. [PMID: 35004768 PMCID: PMC8739220 DOI: 10.3389/fmed.2021.794324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 12/07/2021] [Indexed: 11/23/2022] Open
Abstract
Lung stereotactic body radiation therapy is characterized by a reduction in target volumes and the use of severely hypofractionated schedules. Preclinical modeling became possible thanks to rodent-dedicated irradiation devices allowing accurate beam collimation and focal lung exposure. Given that a great majority of publications use single dose exposures, the question we asked in this study was as follows: in incremented preclinical models, is it worth using fractionated protocols or should we continue focusing solely on volume limitation? The left lungs of C57BL/6JRj mice were exposed to ionizing radiation using arc therapy and 3 × 3 mm beam collimation. Three-fraction schedules delivered over a period of 1 week were used with 20, 28, 40, and 50 Gy doses per fraction. Lung tissue opacification, global histological damage and the numbers of type II pneumocytes and club cells were assessed 6 months post-exposure, together with the gene expression of several lung cells and inflammation markers. Only the administration of 3 × 40 Gy or 3 × 50 Gy generated focal lung fibrosis after 6 months, with tissue opacification visible by cone beam computed tomography, tissue scarring and consolidation, decreased club cell numbers and a reactive increase in the number of type II pneumocytes. A fractionation schedule using an arc-therapy-delivered three fractions/1 week regimen with 3 × 3 mm beam requires 40 Gy per fraction for lung fibrosis to develop within 6 months, a reasonable time lapse given the mouse lifespan. A comparison with previously published laboratory data suggests that, in this focal lung irradiation configuration, administering a Biological Effective Dose ≥ 1000 Gy should be recommended to obtain lung fibrosis within 6 months. The need for such a high dose per fraction challenges the appropriateness of using preclinical highly focused fractionation schedules in mice.
Collapse
Affiliation(s)
- Annaïg Bertho
- Laboratory of Radiobiology of Medical Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
| | - Morgane Dos Santos
- Laboratory of Radiobiology of Accidental Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
| | - Sarah Braga-Cohen
- Laboratory of Radiobiology of Medical Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
| | - Valérie Buard
- Laboratory of Radiobiology of Medical Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
| | - Vincent Paget
- Laboratory of Radiobiology of Medical Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
| | - Olivier Guipaud
- Laboratory of Radiobiology of Medical Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
| | - Georges Tarlet
- Laboratory of Radiobiology of Medical Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
| | - Fabien Milliat
- Laboratory of Radiobiology of Medical Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
| | - Agnès François
- Laboratory of Radiobiology of Medical Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
| |
Collapse
|
4
|
Benadjaoud MA, Soysouvanh F, Tarlet G, Paget V, Buard V, Santos de Andrade H, Morilla I, Dos Santos M, Bertho A, l'Homme B, Gruel G, François A, Mondini M, Deutsch E, Guipaud O, Milliat F. Deciphering the Dynamic Molecular Program of Radiation-Induced Endothelial Senescence. Int J Radiat Oncol Biol Phys 2021; 112:975-985. [PMID: 34808254 DOI: 10.1016/j.ijrobp.2021.11.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/29/2021] [Accepted: 11/15/2021] [Indexed: 12/30/2022]
Abstract
PURPOSE Radiation-induced cellular senescence is a double-edged sword, acting as both a tumor suppression process limiting tumor proliferation, and a crucial process contributing to normal tissue injury. Endothelial cells play a role in normal tissue injury after radiation therapy. Recently, a study observed an accumulation of senescent endothelial cells (ECs) around radiation-induced lung focal lesions following stereotactic radiation injury in mice. However, the effect of radiation on EC senescence remains unclear because it depends on dose and fractionation, and because the senescent phenotype is heterogeneous and dynamic. METHODS AND MATERIALS Using a systems biology approach in vitro, we deciphered the dynamic senescence-associated transcriptional program induced by irradiation. RESULTS Flow cytometry and single-cell RNA sequencing experiments revealed the heterogeneous senescent status of irradiated ECs and allowed to deciphered the molecular program involved in this status. We identified the Interleukin-1 signaling pathway as a key player in the radiation-induced premature senescence of ECs, as well as the endothelial-to-mesenchymal transition process, which shares strong hallmarks of senescence. CONCLUSIONS Our work provides crucial information on the dynamics of the radiation-induced premature senescence process, the effect of the radiation dose, as well as the molecular program involved in the heterogeneous senescent status of ECs.
Collapse
Affiliation(s)
- Mohamed Amine Benadjaoud
- Institute for Radiological Protection and Nuclear Safety (IRSN), Radiobiology of Medical Exposure Laboratory, Fontenay-aux-Roses; IRSN, Department of Radiobiology and Regenerative Medicine, Fontenay-aux-Roses
| | - Frédéric Soysouvanh
- Institute for Radiological Protection and Nuclear Safety (IRSN), Radiobiology of Medical Exposure Laboratory, Fontenay-aux-Roses; Sorbonne University, Doctoral College, Paris
| | - Georges Tarlet
- Institute for Radiological Protection and Nuclear Safety (IRSN), Radiobiology of Medical Exposure Laboratory, Fontenay-aux-Roses
| | - Vincent Paget
- Institute for Radiological Protection and Nuclear Safety (IRSN), Radiobiology of Medical Exposure Laboratory, Fontenay-aux-Roses
| | - Valérie Buard
- Institute for Radiological Protection and Nuclear Safety (IRSN), Radiobiology of Medical Exposure Laboratory, Fontenay-aux-Roses
| | - Henrique Santos de Andrade
- Institute for Radiological Protection and Nuclear Safety (IRSN), Radiobiology of Medical Exposure Laboratory, Fontenay-aux-Roses
| | - Ian Morilla
- Institute for Radiological Protection and Nuclear Safety (IRSN), Radiobiology of Medical Exposure Laboratory, Fontenay-aux-Roses
| | - Morgane Dos Santos
- IRSN, Radiobiology of Accidental Exposure Laboratory, Fontenay-aux-Roses
| | - Annaïg Bertho
- Institute for Radiological Protection and Nuclear Safety (IRSN), Radiobiology of Medical Exposure Laboratory, Fontenay-aux-Roses; IRSN, Department of Radiobiology and Regenerative Medicine, Fontenay-aux-Roses
| | - Bruno l'Homme
- IRSN, Radiobiology of Accidental Exposure Laboratory, Fontenay-aux-Roses
| | - Gaëtan Gruel
- IRSN, Radiobiology of Accidental Exposure Laboratory, Fontenay-aux-Roses
| | - Agnès François
- Institute for Radiological Protection and Nuclear Safety (IRSN), Radiobiology of Medical Exposure Laboratory, Fontenay-aux-Roses
| | - Michele Mondini
- Gustave Roussy, Université Paris-Saclay, SIRIC SOCRATE, Villejuif; French National Institute of Health and Medical Research (INSERM), Villejuif; Univ Paris Sud, Université Paris-Saclay, Le Kremlin-Bicêtre; INSERM U1030 Gustave Roussy, Villejuif
| | - Eric Deutsch
- Gustave Roussy, Université Paris-Saclay, SIRIC SOCRATE, Villejuif; French National Institute of Health and Medical Research (INSERM), Villejuif; Univ Paris Sud, Université Paris-Saclay, Le Kremlin-Bicêtre; INSERM U1030 Gustave Roussy, Villejuif; Gustave Roussy, Université Paris-Saclay, Département de Radiothérapie, Villejuif, France
| | - Olivier Guipaud
- Institute for Radiological Protection and Nuclear Safety (IRSN), Radiobiology of Medical Exposure Laboratory, Fontenay-aux-Roses
| | - Fabien Milliat
- Institute for Radiological Protection and Nuclear Safety (IRSN), Radiobiology of Medical Exposure Laboratory, Fontenay-aux-Roses.
| |
Collapse
|
5
|
Ben Kacem M, Benadjaoud MA, Dos Santos M, Buard V, Tarlet G, Le Guen B, François A, Guipaud O, Milliat F, Paget V. Variation of 4 MV X-ray dose rate in fractionated irradiation strongly impacts biological endothelial cell response in vitro. Int J Radiat Biol 2021; 98:50-59. [PMID: 34705615 DOI: 10.1080/09553002.2022.1998703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
PURPOSE Even though X-ray beams are widely used in medical diagnosis or radiotherapy, the comparisons of their dose rates are scarce. We have recently demonstrated in vitro (clonogenic assay, cell viability, cell cycle, senescence) and in vivo (weight follow-up of animals and bordering epithelium staining of lesion), that for a single dose of irradiation, the relative biological effectiveness (RBE) deviates from 1 (up to twofold greater severe damage at the highest dose rate depending on the assay) when increasing the dose rate of high energy X-ray beams. MATERIAL AND METHODS To further investigate the impact of the dose rate on RBE, in this study, we performed in vitro fractionated irradiations by using the same two dose rates (0.63 and 2.5 Gy.min-1) of high-energy X-rays (both at 4 MV) on normal endothelial cells (HUVECs). We investigated the viability/mortality, characterized radiation-induced senescence by using flow cytometry and measured gene analysis deregulations on custom arrays. RESULTS The overall results enlighten that, in fractionated irradiations when varying the dose rate of high-energy X-rays, the RBE of photons deviates from 1 (up to 2.86 for viability/mortality experiments performed 21 days postirradiation). CONCLUSION These results strengthen the interest of multiparametric analysis approaches in providing an accurate evaluation of the outcomes of irradiated cells in support of clonogenic assays, especially when such assays are not feasible.
Collapse
Affiliation(s)
- Mariam Ben Kacem
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (LRMed), Fontenay-aux-Roses, France
| | - Mohamed A Benadjaoud
- Department of RAdiobiology and regenerative MEDicine (SERAMED), Institute for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses, France
| | - Morgane Dos Santos
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of Radiobiology of Accidental exposures (LRAcc), Fontenay-aux-Roses, France
| | - Valérie Buard
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (LRMed), Fontenay-aux-Roses, France
| | - Georges Tarlet
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (LRMed), Fontenay-aux-Roses, France
| | | | - A François
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (LRMed), Fontenay-aux-Roses, France
| | - O Guipaud
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (LRMed), Fontenay-aux-Roses, France
| | - F Milliat
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (LRMed), Fontenay-aux-Roses, France
| | - Vincent Paget
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (LRMed), Fontenay-aux-Roses, France
| |
Collapse
|
6
|
Brossard C, Lefranc AC, Dos Santos M, Benadjaoud M, Demarquay C, Buard V, Tarlet G, Squiban C, Linard C, Mathieu N, Simon JM, Benderritter M, Milliat F, Chapel A. Étude préclinique du traitement par thérapie cellulaire de la cystite radique chronique. Cancer Radiother 2021. [DOI: 10.1016/j.canrad.2021.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
7
|
Brossard C, Lefranc AC, Dos Santos M, Benadjaoud M, Demarquay C, Buard V, Tarlet G, Squiban C, Linard C, Mathieu N, Granger R, Sache A, Denais Laliève D, Simon JM, Benderitter M, Milliat F, Chapel A. Modélisation préclinique de la cystite radique chronique et étude du potentiel d’une thérapie cellulaire. Cancer Radiother 2020. [DOI: 10.1016/j.canrad.2020.08.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
8
|
Brossard C, Dos Santos M, Demarquay C, Buard V, Tarlet G, Squiban C, Linard C, Mathieu N, Granger R, Sache A, Lalieve DD, Milliat F, Chapel A. Cellular therapy treatment of chronic radiation cystitis in rats. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
9
|
Bertho A, Dos Santos M, Buard V, Paget V, Guipaud O, Tarlet G, Milliat F, François A. Preclinical Model of Stereotactic Ablative Lung Irradiation Using Arc Delivery in the Mouse: Effect of Beam Size Changes and Dose Effect at Constant Collimation. Int J Radiat Oncol Biol Phys 2020; 107:548-562. [PMID: 32278852 DOI: 10.1016/j.ijrobp.2020.03.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 03/09/2020] [Accepted: 03/16/2020] [Indexed: 11/25/2022]
Abstract
PURPOSE Stereotactic body radiation therapy is a therapeutic option offered to high surgical risk patients with lung cancer. Focal lung irradiation in mice is a new preclinical model to help understand the development of lung damage in this context. Here we developed a mouse model of lung stereotactic therapy using arc delivery and monitored the development of lung damage while varying the beam size and dose delivered. METHODS AND MATERIALS C57BL/6JRj mice were exposed to 90 Gy focal irradiation on the left lung using 1-mm diameter, 3 × 3 mm2, 7 × 7 mm2, or 10 × 10 mm2 beam collimation for beam size effect and using 3 × 3 mm2 beam collimation delivering 20 to 120 Gy for dose effect. Long-term lung damage was monitored with micro-computed tomography imaging with anatomopathologic and gene expression measurements in the injured patch and the ipsilateral and contralateral lungs. RESULTS Both 1-mm diameter and 3 × 3 mm2 beam collimation allow long-term studies, but only 3-mm beam collimation generates lung fibrosis when delivering 90 Gy. Dose-effect studies with constant 3-mm beam collimation revealed a dose of 60 Gy as the minimum to obtain lung fibrosis 6 months postexposure. Lung fibrosis development was associated with club cell depletion and increased type II pneumocyte numbers. Lung injury developed with ipsilateral and contralateral consequences such as parenchymal thickening and gene expression modifications. CONCLUSIONS Arc therapy allows long-term studies and dose escalation without lethality. In our dose-delivery conditions, dose-effect studies revealed that 3 × 3 mm2 beam collimation to a minimum single dose of 60 Gy enables preclinical models for the assessment of lung injury within a 6-month period. This model of lung tissue fibrosis in a time length compatible with mouse life span may offer good prospects for future mechanistic studies.
Collapse
Affiliation(s)
- Annaïg Bertho
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Morgane Dos Santos
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Accidentelles, Fontenay-aux-Roses, France
| | - Valérie Buard
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Vincent Paget
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Olivier Guipaud
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Georges Tarlet
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Fabien Milliat
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Agnès François
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France.
| |
Collapse
|
10
|
Paget V, Ben Kacem M, Dos Santos M, Benadjaoud MA, Soysouvanh F, Buard V, Georges T, Vaurijoux A, Gruel G, François A, Guipaud O, Milliat F. Multiparametric radiobiological assays show that variation of X-ray energy strongly impacts relative biological effectiveness: comparison between 220 kV and 4 MV. Sci Rep 2019; 9:14328. [PMID: 31586152 PMCID: PMC6778087 DOI: 10.1038/s41598-019-50908-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 09/20/2019] [Indexed: 01/10/2023] Open
Abstract
Based on classic clonogenic assay, it is accepted by the scientific community that, whatever the energy, the relative biological effectiveness of X-rays is equal to 1. However, although X-ray beams are widely used in diagnosis, interventional medicine and radiotherapy, comparisons of their energies are scarce. We therefore assessed in vitro the effects of low- and high-energy X-rays using Human umbilical vein endothelial cells (HUVECs) by performing clonogenic assay, measuring viability/mortality, counting γ-H2AX foci, studying cell proliferation and cellular senescence by flow cytometry and by performing gene analysis on custom arrays. Taken together, excepted for γ-H2AX foci counts, these experiments systematically show more adverse effects of high energy X-rays, while the relative biological effectiveness of photons is around 1, whatever the quality of the X-ray beam. These results strongly suggest that multiparametric analysis should be considered in support of clonogenic assay.
Collapse
Affiliation(s)
- Vincent Paget
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (LRMed), Fontenay-aux-Roses, 92260, France.
| | - Mariam Ben Kacem
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (LRMed), Fontenay-aux-Roses, 92260, France
| | - Morgane Dos Santos
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of Radiobiology of Accidental exposures (LRAcc), Fontenay-aux-Roses, France
| | - Mohamed A Benadjaoud
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Fontenay-aux-Roses, France
| | - Frédéric Soysouvanh
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (LRMed), Fontenay-aux-Roses, 92260, France
| | - Valérie Buard
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (LRMed), Fontenay-aux-Roses, 92260, France
| | - Tarlet Georges
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (LRMed), Fontenay-aux-Roses, 92260, France
| | - Aurélie Vaurijoux
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of Radiobiology of Accidental exposures (LRAcc), Fontenay-aux-Roses, France
| | - Gaëtan Gruel
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of Radiobiology of Accidental exposures (LRAcc), Fontenay-aux-Roses, France
| | - Agnès François
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (LRMed), Fontenay-aux-Roses, 92260, France
| | - Olivier Guipaud
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (LRMed), Fontenay-aux-Roses, 92260, France
| | - Fabien Milliat
- Institute for Radiological Protection and Nuclear Safety (IRSN), Department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (LRMed), Fontenay-aux-Roses, 92260, France
| |
Collapse
|
11
|
Brossard C, Dos Santos M, Demarquay C, Buard V, Tarlet G, Squiban C, Linard C, Mathieu N, Granger R, Sache A, Denais Laliève D, Milliat F, Chapel A. Thérapie cellulaire de la cystite radique chronique chez le rat. Cancer Radiother 2019. [DOI: 10.1016/j.canrad.2019.07.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
12
|
Ben Kacem M, Benadjaoud M, Soysouvanh F, Dos Santos M, Tarlet G, Buard V, François A, Guipaud O, Milliat F, Paget V. PO-1065 Multiparametric radiobiological parameters implementation to predict radiation-induced side effects. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31485-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
13
|
Lavigne J, Suissa A, Verger N, Dos Santos M, Benadjaoud M, Mille-Hamard L, Momken I, Soysouvanh F, Buard V, Guipaud O, Paget V, Tarlet G, Milliat F, François A. Lung Stereotactic Arc Therapy in Mice: Development of Radiation Pneumopathy and Influence of HIF-1α Endothelial Deletion. Int J Radiat Oncol Biol Phys 2019; 104:279-290. [PMID: 30703512 DOI: 10.1016/j.ijrobp.2019.01.081] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 01/10/2019] [Accepted: 01/21/2019] [Indexed: 01/24/2023]
Abstract
PURPOSE Stereotactic body radiation therapy offers good lung local tumor control by the administration of a high dose per fraction in small volumes. Stereotactic body radiation therapy preclinical modeling is now possible, and our aim was to develop a model of focal irradiation of the mouse lung and to investigate the impact of conditional hypoxia-inducible factor 1α (HIF-1α) deletion in the endothelium on radiation-induced tissue damage. METHODS AND MATERIALS The Small Animal Radiation Research Platform was used to create a mouse model of focal irradiation of the lung using arc therapy. HIF-1α conditional deletion was obtained by crossing mice expressing Cre recombinase under the endothelial promoter VE-cadherin (VECad-Cre+/+ mice) with HIF-1α floxed mice. RESULTS Lung stereotactic arc therapy allows thoracic wall sparing and long-term studies. However, isodose curves showed that neighboring organs received significant doses of radiation, as revealed by ipsilateral lung acute red hepatization and major gene expression level modifications. Conditional HIF-1α deletion reduced acute lung edema and tended to diminish neutrophil infiltrate, but it had no impact on long-term global tissue damage. CONCLUSIONS Arc therapy for focal high-dose irradiation of mouse lung is an efficient model for long-term studies. However, irradiation may have a strong impact on the structure and function of neighboring organs, which must be considered. HIF-1α conditional deletion has no beneficial impact on lung damage in this irradiation schedule.
Collapse
Affiliation(s)
- Jérémy Lavigne
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France; Sorbonne Université, Collège Doctoral, Paris, France
| | - Alexandra Suissa
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Nicolas Verger
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Morgane Dos Santos
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Accidentelles, Fontenay-aux-Roses, France
| | - Mohamedamine Benadjaoud
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Fontenay-aux-Roses, France
| | - Laurence Mille-Hamard
- Unité de Biologie Intégrative des Adaptations à l'Exercice, Université Évry-Val-d'Essonne, Université Paris-Saclay, Evry, France
| | - Iman Momken
- Unité de Biologie Intégrative des Adaptations à l'Exercice, Université Évry-Val-d'Essonne, Université Paris-Saclay, Evry, France
| | - Frédéric Soysouvanh
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France; Sorbonne Université, Collège Doctoral, Paris, France
| | - Valérie Buard
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Olivier Guipaud
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Vincent Paget
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Georges Tarlet
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Fabien Milliat
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Agnès François
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France.
| |
Collapse
|
14
|
Heinonen M, Milliat F, Benadjaoud MA, François A, Buard V, Tarlet G, d’Alché-Buc F, Guipaud O. Temporal clustering analysis of endothelial cell gene expression following exposure to a conventional radiotherapy dose fraction using Gaussian process clustering. PLoS One 2018; 13:e0204960. [PMID: 30281653 PMCID: PMC6169916 DOI: 10.1371/journal.pone.0204960] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 09/15/2018] [Indexed: 12/31/2022] Open
Abstract
The vascular endothelium is considered as a key cell compartment for the response to ionizing radiation of normal tissues and tumors, and as a promising target to improve the differential effect of radiotherapy in the future. Following radiation exposure, the global endothelial cell response covers a wide range of gene, miRNA, protein and metabolite expression modifications. Changes occur at the transcriptional, translational and post-translational levels and impact cell phenotype as well as the microenvironment by the production and secretion of soluble factors such as reactive oxygen species, chemokines, cytokines and growth factors. These radiation-induced dynamic modifications of molecular networks may control the endothelial cell phenotype and govern recruitment of immune cells, stressing the importance of clearly understanding the mechanisms which underlie these temporal processes. A wide variety of time series data is commonly used in bioinformatics studies, including gene expression, protein concentrations and metabolomics data. The use of clustering of these data is still an unclear problem. Here, we introduce kernels between Gaussian processes modeling time series, and subsequently introduce a spectral clustering algorithm. We apply the methods to the study of human primary endothelial cells (HUVECs) exposed to a radiotherapy dose fraction (2 Gy). Time windows of differential expressions of 301 genes involved in key cellular processes such as angiogenesis, inflammation, apoptosis, immune response and protein kinase were determined from 12 hours to 3 weeks post-irradiation. Then, 43 temporal clusters corresponding to profiles of similar expressions, including 49 genes out of 301 initially measured, were generated according to the proposed method. Forty-seven transcription factors (TFs) responsible for the expression of clusters of genes were predicted from sequence regulatory elements using the MotifMap system. Their temporal profiles of occurrences were established and clustered. Dynamic network interactions and molecular pathways of TFs and differential genes were finally explored, revealing key node genes and putative important cellular processes involved in tissue infiltration by immune cells following exposure to a radiotherapy dose fraction.
Collapse
Affiliation(s)
- Markus Heinonen
- Department of Information and Computer Science, Aalto University, Aalto, Finland
| | - Fabien Milliat
- Institute for Radiological Protection and Nuclear Safety (IRSN), PSE-SANTE, SERAMED, LRMed, Fontenay-aux-Roses, France
| | - Mohamed Amine Benadjaoud
- Institute for Radiological Protection and Nuclear Safety (IRSN), PSE-SANTE, SERAMED, Fontenay-aux-Roses, France
| | - Agnès François
- Institute for Radiological Protection and Nuclear Safety (IRSN), PSE-SANTE, SERAMED, LRMed, Fontenay-aux-Roses, France
| | - Valérie Buard
- Institute for Radiological Protection and Nuclear Safety (IRSN), PSE-SANTE, SERAMED, LRMed, Fontenay-aux-Roses, France
| | - Georges Tarlet
- Institute for Radiological Protection and Nuclear Safety (IRSN), PSE-SANTE, SERAMED, LRMed, Fontenay-aux-Roses, France
| | | | - Olivier Guipaud
- Institute for Radiological Protection and Nuclear Safety (IRSN), PSE-SANTE, SERAMED, LRMed, Fontenay-aux-Roses, France
- * E-mail:
| |
Collapse
|
15
|
Bertho A, Dos Santos M, Benadjaoud M, Buard V, Tarlet G, Milliat F, François A. Lésions pulmonaires après irradiation en conditions stéréotaxiques : modélisation préclinique et aspects radiopathologiques. Cancer Radiother 2018. [DOI: 10.1016/j.canrad.2018.07.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
16
|
Grégoire E, Roy L, Buard V, Delbos M, Durand V, Martin-Bodiot C, Voisin P, Sorokine-Durm I, Vaurijoux A, Voisin P, Baldeyron C, Barquinero JF. Twenty years of FISH-based translocation analysis for retrospective ionizing radiation biodosimetry. Int J Radiat Biol 2018; 94:248-258. [DOI: 10.1080/09553002.2018.1427903] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Eric Grégoire
- Laboratoire de Radiobiologie des expositions Accidentelles, Institut de Radioprotection et de Sureté Nucléaire (IRSN), Fontenay-aux-Roses Cedex, France
| | - Laurence Roy
- Laboratoire de Radiobiologie des expositions Accidentelles, Institut de Radioprotection et de Sureté Nucléaire (IRSN), Fontenay-aux-Roses Cedex, France
| | - Valérie Buard
- Laboratoire de Radiobiologie des expositions Accidentelles, Institut de Radioprotection et de Sureté Nucléaire (IRSN), Fontenay-aux-Roses Cedex, France
| | - Martine Delbos
- Institut Fédératif de Biologie, CHU Toulouse Purpan, Toulouse, France
| | - Valérie Durand
- Bureau des Etudes Biomédicales chez l’Animal, Commissariat à l’Energie Atomique, Fontenay-aux-Roses, France
| | - Cécile Martin-Bodiot
- Laboratoire de Radiobiologie des expositions Accidentelles, Institut de Radioprotection et de Sureté Nucléaire (IRSN), Fontenay-aux-Roses Cedex, France
| | - Pascale Voisin
- Laboratoire de Radiobiologie des expositions Accidentelles, Institut de Radioprotection et de Sureté Nucléaire (IRSN), Fontenay-aux-Roses Cedex, France
| | - Irène Sorokine-Durm
- Laboratoire de Radiobiologie des expositions Accidentelles, Institut de Radioprotection et de Sureté Nucléaire (IRSN), Fontenay-aux-Roses Cedex, France
| | - Aurélie Vaurijoux
- Laboratoire de Radiobiologie des expositions Accidentelles, Institut de Radioprotection et de Sureté Nucléaire (IRSN), Fontenay-aux-Roses Cedex, France
| | - Philippe Voisin
- Laboratoire de Radiobiologie des expositions Accidentelles, Institut de Radioprotection et de Sureté Nucléaire (IRSN), Fontenay-aux-Roses Cedex, France
| | - Céline Baldeyron
- Laboratoire de Radiobiologie des expositions Accidentelles, Institut de Radioprotection et de Sureté Nucléaire (IRSN), Fontenay-aux-Roses Cedex, France
| | | |
Collapse
|
17
|
Lavigne J, Soysouvanh F, Buard V, Tarlet G, Guipaud O, Paget V, Milliat F, François A. Conditional Plasminogen Activator Inhibitor Type 1 Deletion in the Endothelial Compartment Has No Beneficial Effect on Radiation-Induced Whole-Lung Damage in Mice. Int J Radiat Oncol Biol Phys 2017; 99:972-982. [DOI: 10.1016/j.ijrobp.2017.07.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 06/21/2017] [Accepted: 07/06/2017] [Indexed: 12/13/2022]
|
18
|
Toullec A, Buard V, Rannou E, Tarlet G, Guipaud O, Robine S, Iruela-Arispe ML, François A, Milliat F. HIF-1α Deletion in the Endothelium, but Not in the Epithelium, Protects From Radiation-Induced Enteritis. Cell Mol Gastroenterol Hepatol 2017; 5:15-30. [PMID: 29276749 PMCID: PMC5738457 DOI: 10.1016/j.jcmgh.2017.08.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 08/08/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND & AIMS Radiation therapy in the pelvic area is associated with side effects that impact the quality of life of cancer survivors. Interestingly, the gastrointestinal tract is able to adapt to significant changes in oxygen availability, suggesting that mechanisms related to hypoxia sensing help preserve tissue integrity in this organ. However, hypoxia-inducible factor (HIF)-dependent responses to radiation-induced gut toxicity are unknown. Radiation-induced intestinal toxicity is a complex process involving multiple cellular compartments. Here, we investigated whether epithelial or endothelial tissue-specific HIF-1α deletion could affect acute intestinal response to radiation. METHODS Using constitutive and inducible epithelial or endothelial tissue-specific HIF-1α deletion, we evaluated the consequences of epithelial or endothelial HIF-1α deletion on radiation-induced enteritis after localized irradiation. Survival, radiation-induced tissue injury, molecular inflammatory profile, tissue hypoxia, and vascular injury were monitored. RESULTS Surprisingly, epithelium-specific HIF-1α deletion does not alter radiation-induced intestinal injury. However, irradiated VECad-Cre+/-HIF-1αFL/FL mice present with lower radiation-induced damage, showed a preserved vasculature, reduced hypoxia, and reduced proinflammatory response compared with irradiated HIF-1αFL/FL mice. CONCLUSIONS We demonstrate in vivo that HIF-1α impacts radiation-induced enteritis and that this role differs according to the targeted cell type. Our work provides a new role for HIF-1α and endothelium-dependent mechanisms driving inflammatory processes in gut mucosae. Results presented show that effects on normal tissues have to be taken into account in approaches aiming to modulate hypoxia or hypoxia-related molecular mechanisms.
Collapse
Key Words
- EndoMT, endothelial-to-mesenchymal transition
- Endothelium
- HIF, hypoxia-inducible factor
- HIF-1α
- HIF-1αFl/FL, HIF-1α floxed mice
- HIMEC, human intestinal microvascular endothelial cells
- HUVEC, human umbilical vein endothelial cells
- IL, interleukin
- PAI-1, plasminogen activator inhibitor type-1
- PCR, polymerase chain reaction
- ROSA, ROSA26R LacZ reporter mice
- Radiation
- Sham-IR, sham-irradiation
- TBI, total body irradiation
- VECad-Cre, VE-cadherin-Cre mice
Collapse
Affiliation(s)
- Aurore Toullec
- Research Laboratory of Radiobiology and Radiopathology, Institute for Radiological Protection and Nuclear Safety, Fontenay-aux-Roses, France
| | - Valérie Buard
- Research Laboratory of Radiobiology and Radiopathology, Institute for Radiological Protection and Nuclear Safety, Fontenay-aux-Roses, France
| | - Emilie Rannou
- Research Laboratory of Radiobiology and Radiopathology, Institute for Radiological Protection and Nuclear Safety, Fontenay-aux-Roses, France
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, California
| | - Georges Tarlet
- Research Laboratory of Radiobiology and Radiopathology, Institute for Radiological Protection and Nuclear Safety, Fontenay-aux-Roses, France
| | - Olivier Guipaud
- Research Laboratory of Radiobiology and Radiopathology, Institute for Radiological Protection and Nuclear Safety, Fontenay-aux-Roses, France
| | | | - M. Luisa Iruela-Arispe
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, California
| | - Agnès François
- Research Laboratory of Radiobiology and Radiopathology, Institute for Radiological Protection and Nuclear Safety, Fontenay-aux-Roses, France
| | - Fabien Milliat
- Research Laboratory of Radiobiology and Radiopathology, Institute for Radiological Protection and Nuclear Safety, Fontenay-aux-Roses, France
- Correspondence Address correspondence to: Fabien Milliat, PhD, Research Laboratory of Radiobiology and Radiopathology, Institute for Radiological Protection and Nuclear Safety, 92265 Fontenay-aux-Roses, France.Research Laboratory of Radiobiology and RadiopathologyInstitute for Radiological Protection and Nuclear Safety92265 Fontenay-aux-RosesFrance
| |
Collapse
|
19
|
Jaillet C, Morelle W, Slomianny MC, Paget V, Tarlet G, Buard V, Selbonne S, Caffin F, Rannou E, Martinez P, François A, Foulquier F, Allain F, Milliat F, Guipaud O. Radiation-induced changes in the glycome of endothelial cells with functional consequences. Sci Rep 2017; 7:5290. [PMID: 28706280 PMCID: PMC5509684 DOI: 10.1038/s41598-017-05563-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [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: 03/06/2017] [Accepted: 05/30/2017] [Indexed: 12/27/2022] Open
Abstract
As it is altered by ionizing radiation, the vascular network is considered as a prime target in limiting normal tissue damage and improving tumor control in radiation therapy. Irradiation activates endothelial cells which then participate in the recruitment of circulating cells, especially by overexpressing cell adhesion molecules, but also by other as yet unknown mechanisms. Since protein glycosylation is an important determinant of cell adhesion, we hypothesized that radiation could alter the glycosylation pattern of endothelial cells and thereby impact adhesion of circulating cells. Herein, we show that ionizing radiation increases high mannose-type N-glycans and decreases glycosaminoglycans. These changes stimulate interactions measured under flow conditions between irradiated endothelial cells and monocytes. Targeted transcriptomic approaches in vitro in endothelial cells and in vivo in a radiation enteropathy mouse model confirm that genes involved in N- and O-glycosylation are modulated by radiation, and in silico analyses give insight into the mechanism by which radiation modifies glycosylation. The endothelium glycome may therefore be considered as a key therapeutic target for modulating the chronic inflammatory response observed in healthy tissues or for participating in tumor control by radiation therapy.
Collapse
Affiliation(s)
- Cyprien Jaillet
- Institute for Radiological Protection and Nuclear Safety (IRSN), PRP-HOM, SRBE, L3R, 92260, Fontenay-aux-Roses, France
| | - Willy Morelle
- University of Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, 59000, Lille, France
| | - Marie-Christine Slomianny
- University of Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, 59000, Lille, France
| | - Vincent Paget
- Institute for Radiological Protection and Nuclear Safety (IRSN), PRP-HOM, SRBE, L3R, 92260, Fontenay-aux-Roses, France
| | - Georges Tarlet
- Institute for Radiological Protection and Nuclear Safety (IRSN), PRP-HOM, SRBE, L3R, 92260, Fontenay-aux-Roses, France
| | - Valérie Buard
- Institute for Radiological Protection and Nuclear Safety (IRSN), PRP-HOM, SRBE, L3R, 92260, Fontenay-aux-Roses, France
| | - Sonia Selbonne
- Institute for Radiological Protection and Nuclear Safety (IRSN), PRP-HOM, SRBE, L3R, 92260, Fontenay-aux-Roses, France
| | - Fanny Caffin
- Institute for Radiological Protection and Nuclear Safety (IRSN), PRP-HOM, SRBE, L3R, 92260, Fontenay-aux-Roses, France
| | - Emilie Rannou
- Institute for Radiological Protection and Nuclear Safety (IRSN), PRP-HOM, SRBE, L3R, 92260, Fontenay-aux-Roses, France.,Department of Molecular, Cell and Developmental Biology, UCLA, CA 90095-7239, Los Angeles, USA
| | - Pierre Martinez
- University of Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, 59000, Lille, France.,GSK - GlaxoSmithKline, 1300, Wavre, Belgium
| | - Agnès François
- Institute for Radiological Protection and Nuclear Safety (IRSN), PRP-HOM, SRBE, L3R, 92260, Fontenay-aux-Roses, France
| | - François Foulquier
- University of Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, 59000, Lille, France
| | - Fabrice Allain
- University of Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, 59000, Lille, France
| | - Fabien Milliat
- Institute for Radiological Protection and Nuclear Safety (IRSN), PRP-HOM, SRBE, L3R, 92260, Fontenay-aux-Roses, France
| | - Olivier Guipaud
- Institute for Radiological Protection and Nuclear Safety (IRSN), PRP-HOM, SRBE, L3R, 92260, Fontenay-aux-Roses, France.
| |
Collapse
|
20
|
Jaillet C, Morelle W, Slomianny M, Paget V, Tarlet G, Buard V, Selbonne S, Caffin F, Rannou E, Martinez P, François A, Foulquier F, Allain F, Milliat F, Guipaud O. OC-0031: Global changes in the glycosylation of irradiated endothelial cells with functional consequences. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)30475-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
21
|
Buard V, Van den Bergh R, Tayler-Smith K, Godia P, Sobry A, Kosgei RJ, Szumilin E, Harries AD, Pujades-Rodriguez M. Characteristics, medical management and outcomes of survivors of sexual gender-based violence, Nairobi, Kenya. Public Health Action 2015; 3:109-12. [PMID: 26393011 DOI: 10.5588/pha.13.0012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2013] [Accepted: 02/26/2013] [Indexed: 11/10/2022] Open
Abstract
SETTING Médecins Sans Frontières Clinic for sexual gender-based violence (SGBV), Nairobi, Kenya. OBJECTIVES Among survivors of SGBV in 2011, to describe demographic characteristics and episodes of sexual violence, medical management, pregnancy and human immunodeficiency virus (HIV) related outcomes. DESIGN Retrospective review of clinical records and SGBV register. RESULTS Survivors attending the clinic increased from seven in 2007 to 866 in 2011. Of the 866 survivors included, 92% were female, 34% were children and 54% knew the aggressor; 73% of the assaults occurred inside a home and most commonly in the evening or at night. Post-exposure prophylaxis for HIV was given to 536 (94%), prophylaxis for sexually transmitted infections to 731 (96%) and emergency contraception to 358 (83%) eligible patients. Hepatitis B and tetanus toxoid vaccinations were given to 774 survivors, but respectively only 46% and 14% received a second injection. Eight (4.5%) of 174 women who underwent urine pregnancy testing were positive at 1 month. Of 851 survivors HIV-tested at baseline, 96 (11%) were HIV-positive. None of the 220 (29%) HIV-negative individuals who returned for repeat HIV testing after 3 months was positive. CONCLUSION Acceptable, good quality SGBV medical care can be provided in large cities of sub-Saharan Africa, although further work is needed to improve follow-up interventions.
Collapse
Affiliation(s)
- V Buard
- Médecins Sans Frontières (MSF) France, Nairobi, Kenya
| | - R Van den Bergh
- Medical Department-Operational Research Unit, MSF Operational Centre Brussels, Luxembourg, Luxembourg
| | - K Tayler-Smith
- Medical Department-Operational Research Unit, MSF Operational Centre Brussels, Luxembourg, Luxembourg
| | - P Godia
- Division of Reproductive Health, Ministry of Health, Nairobi, Kenya
| | | | - R J Kosgei
- Department of Obstetrics and Gynaecology, University of Nairobi, Nairobi, Kenya
| | | | - A D Harries
- International Union Against Tuberculosis and Lung Disease, Paris, France ; London School of Hygiene & Tropical Medicine, London, UK
| | | |
Collapse
|
22
|
Mintet E, Rannou E, Buard V, West G, Guipaud O, Tarlet G, Sabourin JC, Benderitter M, Fiocchi C, Milliat F, François A. Identification of Endothelial-to-Mesenchymal Transition as a Potential Participant in Radiation Proctitis. Am J Pathol 2015; 185:2550-62. [PMID: 26185013 DOI: 10.1016/j.ajpath.2015.04.028] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 04/22/2015] [Accepted: 04/29/2015] [Indexed: 01/09/2023]
Abstract
The endothelial-to-mesenchymal transition (EndoMT) is a crucial cellular process during heart development necessary to the formation of cardiac valves. This embryonic process reappears in several pathological situations, such as vascular injury or organ fibrosis of various etiologies, as a mediator of extracellular matrix-producing cells. Because radiation induces both vascular damage and fibrosis, we investigated whether radiation exposure induces EndoMT in primary human intestinal microvascular endothelial cells (HIMECs) and whether EndoMT contributes to radiation-induced rectal damage in humans and in a preclinical model of radiation proctitis in mice. Irradiated HIMECs show phenotypic hallmarks of radiation-induced endothelial cell activation in vitro. Moreover, HIMECs undergo changes in molecular expression pattern compatible with EndoMT, with up-regulation of mesenchymal markers and down-regulation of endothelial markers via transforming growth factor/Smad pathway activation. In vivo, EndoMT readily occurs in the human rectum after radiation therapy for rectal adenocarcinoma. Finally, EndoMT was observed in rectal mucosal and submucosal microvessels in a preclinical model of radiation proctitis in Tie2-green fluorescent protein reporter-expressing mice all along radiation proctitis development, also associated with transforming growth factor/Smad pathway activation. In conclusion, radiation-induced cell activation and tissue inflammation constitute a setting that fosters the phenotypic conversion of endothelial cells into mesenchymal cells. Therefore, EndoMT is identified as a potential participant in radiation-induced gut damage and may represent an interesting therapeutic target in cases of radiation-induced pelvic disease.
Collapse
Affiliation(s)
- Elodie Mintet
- Department of Radiobiology and Epidemiology, Radiobiology and Radiopathology Research Laboratory, Fontenay-aux-Roses, France
| | - Emilie Rannou
- Department of Radiobiology and Epidemiology, Radiobiology and Radiopathology Research Laboratory, Fontenay-aux-Roses, France
| | - Valérie Buard
- Department of Radiobiology and Epidemiology, Radiobiology and Radiopathology Research Laboratory, Fontenay-aux-Roses, France
| | - Gail West
- Department of Pathobiology, Digestive Disease Institute, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Olivier Guipaud
- Department of Radiobiology and Epidemiology, Radiobiology and Radiopathology Research Laboratory, Fontenay-aux-Roses, France
| | - Georges Tarlet
- Department of Radiobiology and Epidemiology, Radiobiology and Radiopathology Research Laboratory, Fontenay-aux-Roses, France
| | | | - Marc Benderitter
- Department of Radiobiology and Epidemiology, Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France
| | - Claudio Fiocchi
- Department of Pathobiology, Digestive Disease Institute, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Fabien Milliat
- Department of Radiobiology and Epidemiology, Radiobiology and Radiopathology Research Laboratory, Fontenay-aux-Roses, France
| | - Agnès François
- Department of Radiobiology and Epidemiology, Radiobiology and Radiopathology Research Laboratory, Fontenay-aux-Roses, France.
| |
Collapse
|
23
|
Foubert P, Squiban C, Holler V, Buard V, Dean C, Levy BI, Benderitter M, Silvestre JS, Tobelem G, Tamarat R. Strategies to Enhance the Efficiency of Endothelial Progenitor Cell Therapy by Ephrin B2 Pretreatment and Coadministration with Smooth Muscle Progenitor Cells on Vascular Function during the Wound-Healing Process in Irradiated or Nonirradiated Condition. Cell Transplant 2015; 24:1343-61. [DOI: 10.3727/096368913x672064] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Endothelial progenitor cell (EPC) transplantation has beneficial effects for therapeutic neovascularization. We therefore assessed the effect of a therapeutic strategy based on EPC administation in the healing of radiation-induced damage. To improve cell therapy for clinical use, we used pretreatment with ephrin B2-Fc (Eph-B2-Fc) and/or coadministration with smooth muscle progenitor cells. At day 3, EPCs promoted dermal wound healing in both nonirradiated and irradiated mice by 1.2- and 1.15-fold, respectively, compared with animals injected with phosphate-buffered saline. In addition, EPCs also improved skin-blood perfusion and capillary density in both irradiated and nonirradiated mice compared with PBS-injected animals. We also demonstrated that activation with Eph-B2-Fc increased wound closure by 1.6-fold compared with unstimulated EPCs in nonirradiated mice. Interestingly, the beneficial effect of Eph-B2-Fc was abolished in irradiated animals. In addition, we found that Eph-B2-Fc stimulation did not improve EPC-induced vascular permeability or adhesiveness compared to unstimulated EPCs. We hypothesized that this effect was due to high oxidative stress during irradiation, leading to inhibition of EPCs' beneficial effect on vascular function. In this line, we demonstated that, in irradiated conditions, N-acetyl-l-cysteine treatment restored the beneficial effect of EPC stimulation with Eph-B2-Fc in the wound healing process. In conclusion, stimulation by Eph-B2-Fc improved the beneficial effect of EPCs in physiological conditions and irradiated conditions only in association with antioxidant treatment. Additionally, cotherapy was beneficial in pathological conditions.
Collapse
Affiliation(s)
| | - Claire Squiban
- Institute of Radioprotection and Nuclear Safety (IRSN), DRPH/SRBE/LRTE, France FAR, France
| | - Valérie Holler
- Institute of Radioprotection and Nuclear Safety (IRSN), DRPH/SRBE/LRTE, France FAR, France
| | - Valérie Buard
- Institute of Radioprotection and Nuclear Safety (IRSN), DRPH/SRBE/LRTE, France FAR, France
| | - Carole Dean
- IVS Institut des Vaisseaux et du Sang, Paris, France
| | | | - Marc Benderitter
- Institute of Radioprotection and Nuclear Safety (IRSN), DRPH/SRBE/LRTE, France FAR, France
| | | | | | - Radia Tamarat
- Institute of Radioprotection and Nuclear Safety (IRSN), DRPH/SRBE/LRTE, France FAR, France
| |
Collapse
|
24
|
Heinonen M, Guipaud O, Milliat F, Buard V, Micheau B, Tarlet G, Benderitter M, Zehraoui F, d’Alché-Buc F. Detecting time periods of differential gene expression using Gaussian processes: an application to endothelial cells exposed to radiotherapy dose fraction. Bioinformatics 2014; 31:728-35. [DOI: 10.1093/bioinformatics/btu699] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
25
|
Hneino M, Blirando K, Buard V, Tarlet G, Benderitter M, Hoodless P, François A, Milliat F. The TG-interacting factor TGIF1 regulates stress-induced proinflammatory phenotype of endothelial cells. J Biol Chem 2012; 287:38913-21. [PMID: 22995913 DOI: 10.1074/jbc.m112.388389] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The endothelium contributes to the control of the tissue inflammatory response following stress and in particular after exposure to ionizing radiation. We previously showed that the TG-interacting factor 1 (TGIF1) plays a role in radiation-induced normal tissue injury. In this study we hypothesized that this protein could play a role in inflammation. The role of TGIF1 in the stress-induced proinflammatory phenotype was investigated in human endothelial cells. In HUVECs ionizing radiation induces TGIF1 expression as well as a proinflammatory phenotype associated with up-regulation of IL-6, IL-8, CXCL1, MIP-2, and MCP-1. TGIF1 overexpression enhances the radiation-induced proinflammatory phenotype whereas TGIF1 silencing limits both the TNF-α- and radiation-induced overexpression of proinflammatory cytokines. Interestingly, in vivo, in radiation-induced intestinal inflammation in mice, TGIF1 genetic deficiency is associated with a reduced radiation-induced overexpression of proinflammatory molecules. In HUVECs, TNF-α- and radiation-induced NF-κB pathway activation is not influenced by TGIF1 expression, whereas TGIF1 knockdown inhibits both TNF-α- and radiation-induced p38 MAPK pathway activation. This study demonstrates that TGIF1 plays a role in TNF-α- and radiation-induced inflammation and suggests that it could be a target in limiting this event in the vascular compartment.
Collapse
Affiliation(s)
- Mohammad Hneino
- Laboratory of Radiopathology and Experimental Therapeutics, Institute for Radiological Protection and Nuclear Safety, 92262 Fontenay-aux-Roses, France
| | | | | | | | | | | | | | | |
Collapse
|
26
|
Roch-Lefèvre S, Pouzoulet F, Giraudet AL, Voisin P, Vaurijoux A, Gruel G, Grégoire E, Buard V, Delbos M, Voisin P, Bourhis J, Roy L. Cytogenetic assessment of heterogeneous radiation doses in cancer patients treated with fractionated radiotherapy. Br J Radiol 2011; 83:759-66. [PMID: 20739344 DOI: 10.1259/bjr/21022597] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The purpose of this study was to evaluate the in vivo dose-response relation of chromosome aberration formation and distribution in a context of localised and fractionated radiotherapy. Cytogenetic analysis was applied to eight patients, all treated for the same tumour localisation; the same localisation was used to prevent the variability usually observed between patients treated with radiotherapy and to allow the corresponding roles of the size of irradiation field and of the dose rate to be studied. The yield of dicentrics, centric rings and fragments was measured in blood samples taken before treatment, during the course of radiotherapy and up to 6 months after. After the first fraction of radiotherapy, we observed that the whole-body dose estimated from the yield of dicentrics and rings was higher (0.35+/-0.2 Gy) than the calculated equivalent whole-body dose (0.07+/-0.04 Gy). By contrast, the partial-body dose derived from the Qdr (quotient of dicentrics and rings) model was estimated to be 2.2+/-0.3 Gy, which agreed quite well with the dose delivered to the tumour (2.1+/-0.1 Gy). We also found a correlation between the yield of induced chromosome aberrations and the target field size (p = 0.014). U-value analysis showed that the distribution of dicentrics and rings was overdispersed, despite the fractionation of the exposure, and a positive correlation between the U-value and the dose rate was observed (p = 0.017). Overall, these results suggest that the proportion of undamaged lymphocytes could increase with the dose rate.
Collapse
Affiliation(s)
- S Roch-Lefèvre
- DRPH/SRBE/LDB, Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Roch-Lefèvre S, Pouzoulet F, Giraudet AL, Voisin P, Vaurijoux A, Gruel G, Grégoire E, Buard V, Delbos M, Voisin P, Bourhis J, Roy L. Cytogenetic assessment of heterogeneous radiation doses in cancer patients treated with fractionated radiotherapy. Br J Radiol 2010. [DOI: 10.1259/bjr/210225597] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
|
28
|
Ebrahimian TG, Pouzoulet F, Squiban C, Buard V, André M, Cousin B, Gourmelon P, Benderitter M, Casteilla L, Tamarat R. Cell therapy based on adipose tissue-derived stromal cells promotes physiological and pathological wound healing. Arterioscler Thromb Vasc Biol 2009; 29:503-10. [PMID: 19201690 DOI: 10.1161/atvbaha.108.178962] [Citation(s) in RCA: 240] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE We hypothesized that adipose tissue may contain progenitors cells with cutaneous and angiogenic potential. METHODS AND RESULTS Adipose tissue-derived stroma cells (ADSCs) were administrated to skin punched wounds of both nonirradiated and irradiated mice (20 Gy, locally). At day 14, ADSCs promoted dermal wound healing and enhanced wound closure, viscolesticity, and collagen tissue secretion in both irradiated and nonirradiated mice. Interestingly, GFP-positive ADSCs incorporated in dermal and epidermal tissue in vivo and expressed epidermal markers K5 and K14. Cultured ADSCs in keratinocyte medium have been shown to differentiate into K5- and K14-positive cells and produced high levels of KGF. At Day 7, ADSCs also improved skin blood perfusion assessed by laser Doppler imaging, capillary density, and VEGF plasma levels in both irradiated and nonirradiated animals. GFP-positive ADSCs incorporated into capillary structures in vivo and expressed the endothelial cell marker CD31. Finally, in situ interphase fluorescence hybridization showed that a small number of ADSCs have the potential to fuse with endogenous keratinocytes. CONCLUSIONS ADSCs participate in dermal wound healing in physiological and pathological conditions by their ability to promote reepithelialization and angiogenesis. Hence, adipose lineage cells represent a new cell source for therapeutic dermal wound healing.
Collapse
Affiliation(s)
- T G Ebrahimian
- Institut de Radioprotection et de Surete Nucleaire IRSN, Service de Radiobiologie d'Epidemiologie, Fontenay-aux-Roses Cedex, France
| | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Milliat F, Sabourin JC, Tarlet G, Holler V, Deutsch E, Buard V, Tamarat R, Atfi A, Benderitter M, François A. Essential role of plasminogen activator inhibitor type-1 in radiation enteropathy. Am J Pathol 2008; 172:691-701. [PMID: 18276785 DOI: 10.2353/ajpath.2008.070930] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Intestinal radiation injury is a dose-limiting factor in radiation therapy for abdominal and pelvic cancers. Because transforming growth factor-beta1 is a key mediator involved in radiation-induced damage, we hypothesized that its target gene, plasminogen activator inhibitor type 1 (PAI-1), is an essential mediator of intestinal radiation toxicity. In a model of radiation enteropathy, survival was monitored and intestinal radiation injury was assessed in both wild-type (Wt) and PAI-1 knockout mice. Immunohistochemical labeling of PAI-1 was also assessed in patients treated with preoperative radiotherapy for rectal adenocarcinoma. Finally, the molecular mechanisms involved in radiation-induced PAI-1 expression were investigated. We found that PAI-1 -/- mice exhibited increased survival and better intestinal function compared with Wt mice. Intestinal radiation injury was attenuated in irradiated PAI-1 -/- mice compared with irradiated Wt mice, and irradiation increased blood cell-endothelial cell interactions in Wt but not PAI-1 -/- mice. In vivo, radiation-induced intestinal damage in mice, as well as in patients treated with radiotherapy, was associated with the up-regulation of PAI-1 in the endothelium. In vitro, irradiation increased PAI-1 expression in endothelial cells by a p53/Smad3-dependent mechanism. Together, these data demonstrate that PAI-1 plays a critical role in radiation-induced intestinal damage, suggesting that PAI-1 is an attractive target for preventing or reducing the side effects of radiation therapy.
Collapse
Affiliation(s)
- Fabien Milliat
- Laboratory of Radiopathology, Institute for Radiological Protection and Nuclear Safety, Fontenay-aux-Roses; Unité Propre de Recherche et de l'Enseignement Supérieur, Equipe d'Accueil-2710, France.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Guipaud O, Holler V, Buard V, Tarlet G, Royer N, Vinh J, Benderitter M. Time-course analysis of mouse serum proteome changes following exposure of the skin to ionizing radiation. Proteomics 2007; 7:3992-4002. [DOI: 10.1002/pmic.200601032] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
31
|
Pouzoulet F, Roch-Lefèvre S, Giraudet AL, Vaurijoux A, Voisin P, Buard V, Delbos M, Bourhis J, Voisin P, Roy L. Monitoring translocations by M-FISH and three-color FISH painting techniques: a study of two radiotherapy patients. J Radiat Res 2007; 48:425-34. [PMID: 17785937 DOI: 10.1269/jrr.07013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
PURPOSE To compare translocation rate using either M-FISH or FISH-3 in two patients treated for head and neck cancer, with a view to retrospective dosimetry. MATERIALS AND METHODS Translocation analysis was performed on peripheral blood lymphocyte cultures from blood samples taken at different times during the radiotherapy (0 Gy, 12 Gy and 50 Gy) and a few months after the end of the treatment (follow-up). RESULTS Estimated translocation yield varied according to the FISH technique used. At 50 Gy and follow-up points, the translocation yields were higher with FISH-3 than with M-FISH. This difference can be attributed to three events. First, an increase in complex aberrations was observed for 50 Gy and follow-up points compared with 0 Gy and 12 Gy points. Second, at the end of treatment for patient A, involvement of chromosomes 2, 4, 12 in translocations was less than expected according to the Lucas formula. Third, a clone bearing a translocation involving a FISH-3 painted chromosome was detected. CONCLUSIONS More translocations were detected with M-FISH than with FISH-3, and so M-FISH is expected to improve the accuracy of chromosome aberration analyses in some situations.
Collapse
Affiliation(s)
- F Pouzoulet
- Institut de Radioprotection et de Sûreté Nucléaire, Laboratoire de Dosimétrie Biologique, Fontenay aux Roses, France
| | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Benderitter M, Isoir M, Buard V, Durand V, Linard C, Vozenin-Brotons MC, Steffanazi J, Carsin H, Gourmelon P. Collapse of Skin Antioxidant Status during the Subacute Period of Cutaneous Radiation Syndrome: A Case Report. Radiat Res 2007; 167:43-50. [PMID: 17214513 DOI: 10.1667/rr0577.1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2006] [Accepted: 08/28/2006] [Indexed: 11/03/2022]
Abstract
This case report describes a patient suffering from accidental cutaneous radiation syndrome. Clinical symptoms were characterized by the presence of moist epidermal denudation over approximately 8% of the body surface without signs of necrosis 88 days after radiation exposure. The skin transcriptional profile was obtained and provides a comprehensive overview of the changes in gene expression associated with skin wound healing after irradiation. In particular, our data show a specific set of genes, i.e. SOD1, GPX1, TDX1, TDX2 and HSP60, implicated in the redox control of normal skin repair after radiation exposure, whereas HOX1 and HOX2 were involved in the pathological skin repair. A reduction in the antioxidant capacity of the irradiated tissue concomitant with a progressive establishment of an uncontrolled inflammatory response was noted. Our data corroborate the hypothesis that ROS modulation is a key element of the healing response after cutaneous exposure to radiation and that the collapse of skin antioxidant status interferes directly with wound healing in skin after radiation exposure. Thus a better understanding of the molecular events through which oxidative stress modulates the healing response could result in a more rational therapeutic approach to the pathological process induced after exposure of skin to radiation.
Collapse
Affiliation(s)
- Marc Benderitter
- Laboratoire de RadioPathologie, SRBE, DRPH, IRSN, Fontenay-aux Roses, France.
| | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Roy L, Gregoire E, Durand V, Buard V, Delbos M, Paillole N, Sorokine-Durm I, Gourmelon P, Voisin P. Study of the tools available in biological dosimetry to estimate the dose in cases of accidental complex overexposure to ionizing radiation: the Lilo accident. Int J Radiat Biol 2006; 82:39-48. [PMID: 16546902 DOI: 10.1080/09553000600579207] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [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: 10/23/2022]
Abstract
PURPOSE To compare the efficiency of different cytogenetic tools in estimating the doses received by four people involved in the Lilo accident and to monitor the dose estimate over 4.5 years. MATERIALS AND METHODS Several young Georgian frontier guards handled at least one of the 12 Caesium sources found in a former Russian military camp. Overexposure lasted from July 1996 to May 1997. The Institute for Radiological Protection and Nuclear Safety (IRSN) obtained blood samples taken at several intervals post-exposure from the four most highly-exposed people. Dose estimation was performed using dicentric and translocation scoring. RESULTS The first dose estimations performed by dicentric scoring gave whole-body doses ranging from 0.4 to 1.3 Gy. Overexposure was complex and several mathematical models were used to take this complexity into account. This could provide information concerning the circumstances of overexposure. Concerning follow-up, the yield of dicentrics decreased by about 50% in the first 4 months following the end of overexposure whereas translocations were stable over the period of analysis. CONCLUSION It has been useful to compare cytogenetic results with clinical results. The results presented here reveal good stability of translocations. However the first dose estimation was not attempted until 6 months after the last exposure.
Collapse
Affiliation(s)
- L Roy
- Institute for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses, France.
| | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Isoir M, Buard V, Gasser P, Voisin P, Lati E, Benderitter M. Human keratinocyte radiosensitivity is linked to redox modulation. J Dermatol Sci 2005; 41:55-65. [PMID: 16361084 DOI: 10.1016/j.jdermsci.2005.11.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2005] [Revised: 11/02/2005] [Accepted: 11/24/2005] [Indexed: 12/22/2022]
Abstract
BACKGROUND Ionising radiation-induced reactive oxygen species (ROS) overproduction induces keratinocyte alterations and constitutes one of the most common effects after therapeutic gamma-irradiation. ROS production is controlled by a complex enzymatic system. OBJECTIVE The aim of our study is to analyse the role of radiation-induced oxidative stress in keratinocytes death by apoptosis. We hypothesized that keratinocyte capacity to hamper radiation-induced ROS generation may control their radiosensitivity. METHODS For this purpose, an original human skin explant model was developed and two types of human epidermal cells were used: primary keratinocytes NHEK and spontaneous non-tumourigenic cell line HaCaT. RESULTS cDNA-arrays analysis was performed 24h after a 20Gy gamma-radiation and revealed down-regulation of genes involved in oxidative stress control and the apoptosis process. This was confirmed by alterations in catalase, GPx and SOD enzymatic activities. This redox modulation was concomitant to the down-regulation of anti-apoptotic genes and up-regulation of some pro-apoptotic genes (caspase 10, ubiquitin C). Interestingly TUNEL labelling revealed an increase in the number of apoptotic cells. We also demonstrated a differential inducibility of the cell antioxidant network in two keratinocyte lines, which results in a differential cellular level of ROS, explaining their different radiosensitivities. CONCLUSION Keratinocytes apoptosis is partly dependent on ROS production after exposure to gamma-rays. In addition, the differential radiosensitivity of keratinocytes is linked to different oxidative stress responses.
Collapse
Affiliation(s)
- Muriel Isoir
- Institut de Radioprotection et de Sûreté Nucléaire IRSN, Service de Radiobiologie d'Epidémiologie, Direction de la Radioprotection de l'Homme, Laboratoire de RadioPathologie, IRSN, B.P. no. 17, F-92262 Fontenay-aux-Roses Cedex, France
| | | | | | | | | | | |
Collapse
|
35
|
Roy L, Buard V, Delbos M, Durand V, Paillole N, Grégoire E, Voisin P. International intercomparison for criticality dosimetry: the case of biological dosimetry. Radiat Prot Dosimetry 2004; 110:471-476. [PMID: 15353693 DOI: 10.1093/rpd/nch349] [Citation(s) in RCA: 20] [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] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The Institute of Radiation Protection and Nuclear Safety (IRSN) organized a biological dosimetry international intercomparison with the purpose of comparing (i) dicentrics yield produced in human lymphocytes; (ii) the gamma and neutron dose estimate according to the corresponding laboratory calibration curve. The experimental reactor SILENE was used with different configurations: bare source 4 Gy, lead shield 1 and 2 Gy and a 60Co source 2 Gy. An increasing variation of dicentric yield per cell was observed between participants when there were more damages in the samples. Doses were derived from the observed dicentric rates according to the dose-effect relationship provided by each laboratory. Differences in dicentric rate values are more important than those in the corresponding dose values. The doses obtained by the participants were found to be in agreement with the given physical dose within 20%. The evaluation of the respective gamma and neutron dose was achieved only by four laboratories, with some small variations among them.
Collapse
Affiliation(s)
- L Roy
- Institut de Radioprotection et de Sûreté Nucléaire, Direction de la radioprotection de l'homme, IRSN, BP 17 92262 Fontenay-aux roses, France.
| | | | | | | | | | | | | |
Collapse
|