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Chen N, Zhang J, Yin C, Liao Y, Song L, Hu T, Pan X. Abnormal methylation of Mill1 gene regulates osteogenic differentiation involved in various phenotypes of skeletal fluorosis in rats and methionine intervention. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2025; 290:117519. [PMID: 39674021 DOI: 10.1016/j.ecoenv.2024.117519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2024] [Revised: 12/02/2024] [Accepted: 12/08/2024] [Indexed: 12/16/2024]
Abstract
Excessive fluoride intake can lead to skeletal fluorosis. Nutritional differences in the same fluoride-exposed environment result in osteosclerosis, osteoporosis, and osteomalacia. DNA methylation has been found to be involved in skeletal fluorosis and is influenced by environment and nutrition. In a previous study, we screened eight genes with differential methylation associated with various phenotypes of skeletal fluorosis. By combining gene functions, Mill1 gene was selected for subsequent experiments. First, we found that the Mill1 gene was hypomethylated and upregulated in osteosclerosis skeletal fluorosis, whereas it was hypermethylated and downregulated in osteoporosis/osteomalacia skeletal fluorosis. Similar results were obtained in the cell experiments. Subsequently, we validated the regulation of Mill1 gene methylation using DNMT1 and TET2 enzyme inhibitors. Furthermore, we knockdown and overexpression experiments confirmed its downregulation inhibited osteogenic differentiation, whereas osteogenic differentiation was promoted by its overexpression. These findings imply that abnormal methylation of the Mill1 gene triggered by fluoride under diverse nutritional conditions, regulates its expression and participates in osteogenic differentiation, potentially resulting in various phenotypes of skeletal fluorosis. Eventually, we use methionine for interventions both in vivo and in vitro. The results indicated that under normal nutrition and fluoride exposure followed by methionine intervention, the methylation levels of the Mill1 gene increased, whereas its high expression and enhanced osteogenic differentiation were restrained. This study offers a theoretical foundation for understanding the mechanism behind the various phenotypes of skeletal fluorosis through the perspective of DNA methylation and for employing nutrients to intervene in skeletal fluorosis.
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Affiliation(s)
- Niannian Chen
- School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 561113, China
| | - Jing Zhang
- School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 561113, China
| | - Congyu Yin
- School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 561113, China
| | - Yudan Liao
- School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 561113, China
| | - Lei Song
- School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 561113, China
| | - Ting Hu
- School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 561113, China
| | - Xueli Pan
- School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 561113, China.
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Singh H, Srour SA, Milton DR, McCarty J, Dai C, Gaballa MR, Ammari M, Olivares S, Huls H, De Groot E, Marin D, Petropoulos D, Olson AL, Anderlini P, Im JS, Khouri I, Hosing CM, Rezvani K, Champlin RE, Shpall EJ, Cooper LJN, Kebriaei P. Sleeping beauty generated CD19 CAR T-Cell therapy for advanced B-Cell hematological malignancies. Front Immunol 2022; 13:1032397. [PMID: 36439104 PMCID: PMC9684710 DOI: 10.3389/fimmu.2022.1032397] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/19/2022] [Indexed: 11/12/2022] Open
Abstract
Chimeric antigen receptor (CAR) T-cell therapy has emerged recently as a standard of care treatment for patients with relapsed or refractory acute lymphoblastic leukemia (ALL) and several subtypes of B-cell non-Hodgkin lymphoma (NHL). However, its use remains limited to highly specialized centers, given the complexity of its administration and its associated toxicities. We previously reported our experience in using a novel Sleeping Beauty (SB) CD19-specific CAR T-cell therapy in the peri-transplant setting, where it exhibited an excellent safety profile with encouraging survival outcomes. We have since modified the SB CD19 CAR construct to improve its efficacy and shorten its manufacturing time. We report here the phase 1 clinical trial safety results. Fourteen heavily treated patients with relapsed/refractory ALL and NHL were infused. Overall, no serious adverse events were directly attributed to the study treatment. Three patients developed grades 1-2 cytokine release syndrome and none of the study patients experienced neurotoxicity. All dose levels were well tolerated and no dose-limiting toxicities were reported. For efficacy, 3 of 8 (38%) patients with ALL achieved CR/CRi (complete remission with incomplete count recovery) and 1 (13%) patient had sustained molecular disease positivity. Of the 4 patients with DLBCL, 2 (50%) achieved CR. The SB-based CAR constructs allow manufacturing of targeted CAR T-cell therapies that are safe, cost-effective and with encouraging antitumor activity.
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Affiliation(s)
- Harjeet Singh
- Department of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Samer A. Srour
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Denái R. Milton
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Jessica McCarty
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Cuiping Dai
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Mahmoud R. Gaballa
- Cellular Therapy Program and Bone Marrow Transplant Unit, Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA, United States
| | - Mariam Ammari
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Simon Olivares
- Department of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Helen Huls
- Department of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | | | - David Marin
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Demetrios Petropoulos
- Department of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Amanda L. Olson
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Paolo Anderlini
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Jin S. Im
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Issa Khouri
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Chitra M. Hosing
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Katayoun Rezvani
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Richard E. Champlin
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Elizabeth J. Shpall
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | | | - Partow Kebriaei
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, United States,*Correspondence: Partow Kebriaei,
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Chen Q, Zhu J. Detecting virus-specific effects on post-infection temporal gene expression. BMC Bioinformatics 2019; 20:129. [PMID: 30925863 PMCID: PMC6439963 DOI: 10.1186/s12859-019-2653-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background Different types of viruses have different envelope proteins, and may have their shared or distinctive host-virus interactions which result in various post-infection effects in humans and animals. These effects often do not appear at once but take time to unfold. To characterize the virus-specific effects, we applied a Multivariate Polynomial Time-dependent Genetic Association (MPTGA) method, previously proposed for detecting differences in temporal gene expression traits, to test for the differences in mouse lung transcriptome response to infection of different subtypes of influenza A viruses. Results We compared two methods: the Multivariate Polynomial Time-dependent Genetic Association (MPTGA) method, and the conventional modified t-test, to study the virus-specific effects on mouse lung gene expression. Both methods found H3N2 to be the most different virus among the three viruses tested, with the largest number of genes with H3N2-specific effects. However, the MPTGA method demonstrated much higher power of detection, and the detected genes with virus-specific effects showed better biological relevance. Conclusions Transcriptome response to virus infection is dynamic. MPTGA which leverages temporal gene expression traits showed increased power in detecting biologically relevant virus-specific effects comparing with conventional t-test method.
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Affiliation(s)
- Quan Chen
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, 10029, NY, USA.,Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, 10029, NY, USA
| | - Jun Zhu
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, 10029, NY, USA. .,Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, 10029, NY, USA. .,Sema4, a Mount Sinai venture, Stamford, 06902, CT, USA.
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4
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Kajikawa M, Ose T, Fukunaga Y, Okabe Y, Matsumoto N, Yonezawa K, Shimizu N, Kollnberger S, Kasahara M, Maenaka K. Structure of MHC class I-like MILL2 reveals heparan-sulfate binding and interdomain flexibility. Nat Commun 2018; 9:4330. [PMID: 30337538 PMCID: PMC6193965 DOI: 10.1038/s41467-018-06797-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 09/27/2018] [Indexed: 12/23/2022] Open
Abstract
The MILL family, composed of MILL1 and MILL2, is a group of nonclassical MHC class I molecules that occur in some orders of mammals. It has been reported that mouse MILL2 is involved in wound healing; however, the molecular mechanisms remain unknown. Here, we determine the crystal structure of MILL2 at 2.15 Å resolution, revealing an organization similar to classical MHC class I. However, the α1-α2 domains are not tightly fixed on the α3-β2m domains, indicating unusual interdomain flexibility. The groove between the two helices in the α1-α2 domains is too narrow to permit ligand binding. Notably, an unusual basic patch on the α3 domain is involved in the binding to heparan sulfate which is essential for MILL2 interactions with fibroblasts. These findings suggest that MILL2 has a unique structural architecture and physiological role, with binding to heparan sulfate proteoglycans on fibroblasts possibly regulating cellular recruitment in biological events. The MILL (MHC-I-like located near the leukocyte receptor complex) family is a group of related nonclassical MHC-I molecules. Here the authors present the crystal structure of MILL2, which reveals an unusual interdomain flexibility, and show that MILL2 binds heparan sulfate on the surface of fibroblasts through a basic patch.
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Affiliation(s)
- Mizuho Kajikawa
- Laboratory of Microbiology, Showa Pharmaceutical University, Machida, Tokyo, 190-8543, Japan.,Medical Institute of Bioregulation, Kyushu University, Fukuoka, 812-8582, Japan
| | - Toyoyuki Ose
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Yuko Fukunaga
- Medical Institute of Bioregulation, Kyushu University, Fukuoka, 812-8582, Japan
| | - Yuki Okabe
- Medical Institute of Bioregulation, Kyushu University, Fukuoka, 812-8582, Japan.,Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Naoki Matsumoto
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, 277-8562, Japan
| | - Kento Yonezawa
- Photon Factory, High Energy Accelerator Research Organization, Tsukuba, Ibaraki, 305-0801, Japan
| | - Nobutaka Shimizu
- Photon Factory, High Energy Accelerator Research Organization, Tsukuba, Ibaraki, 305-0801, Japan
| | - Simon Kollnberger
- Cardiff Institute of Infection & Immunity, University of Cardiff, Henry Wellcome Building, Heath Park, Cardiff, CF14 4XN, UK
| | - Masanori Kasahara
- Department of Pathology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - Katsumi Maenaka
- Medical Institute of Bioregulation, Kyushu University, Fukuoka, 812-8582, Japan. .,Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan.
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5
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Reuben A, Chung JW, Lapointe R, Santos MM. The hemochromatosis protein HFE 20 years later: An emerging role in antigen presentation and in the immune system. IMMUNITY INFLAMMATION AND DISEASE 2017; 5:218-232. [PMID: 28474781 PMCID: PMC5569368 DOI: 10.1002/iid3.158] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 01/30/2017] [Accepted: 02/10/2017] [Indexed: 12/13/2022]
Abstract
Introduction Since its discovery, the hemochromatosis protein HFE has been primarily defined by its role in iron metabolism and homeostasis, and its involvement in the genetic disease termed hereditary hemochromatosis (HH). While HH patients are typically afflicted by dysregulated iron levels, many are also affected by several immune defects and increased incidence of autoimmune diseases that have thereby implicated HFE in the immune response. Growing evidence has supported an immunological role for HFE with recent studies describing HFE specifically as it relates to MHC I antigen presentation. Methods/Results Here, we present a comprehensive overview of the relationship between iron metabolism, HFE, and the immune system to better understand the origin and cause of immune defects in HH patients. We further describe the role of HFE in MHC I antigen presentation and its potential to impair autoimmune responses in homeostatic conditions, a mechanism which may be exploited by tumors to evade immune surveillance. Conclusion Overall, this increased understanding of the role of HFE in the immune response sets the stage for better treatment and management of HH and other iron‐related diseases, as well as of the immune defects related to this condition.
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Affiliation(s)
- Alexandre Reuben
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada.,Département de Médicine, Université de Montréal, Montréal, Québec, Canada.,Institut du Cancer de Montréal, Montréal, Québec, Canada
| | - Jacqueline W Chung
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
| | - Réjean Lapointe
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada.,Département de Médicine, Université de Montréal, Montréal, Québec, Canada.,Institut du Cancer de Montréal, Montréal, Québec, Canada
| | - Manuela M Santos
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada.,Département de Médicine, Université de Montréal, Montréal, Québec, Canada.,Institut du Cancer de Montréal, Montréal, Québec, Canada
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6
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Abstract
NKG2D ligands (NKG2DLs) are a group of stress-inducible major histocompatibility complex (MHC) class I-like molecules that act as a danger signal alerting the immune system to the presence of abnormal cells. In mammals, two families of NKG2DL genes have been identified: the MIC gene family encoded in the MHC region and the ULBP gene family encoded outside the MHC region in most species. Some mammals have a third family of NKG2DL-like class I genes which we named MILL (MHC class I-like located near the leukocyte receptor complex). Despite the fact that MILL genes are more closely related to MIC genes than ULBP genes are to MIC genes, MILL molecules do not function as NKG2DLs, and their function remains unknown. With the progress of mammalian genome projects, information on the MIC, ULBP, and MILL gene families became available in many mammalian species. Here, we summarize such information and discuss the origin and evolution of the NKG2DL gene family from the viewpoint of host-pathogen coevolution.
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Affiliation(s)
- Masanori Kasahara
- Department of Pathology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Yoichi Sutoh
- Emory Vaccine Center and Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA, USA
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7
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Simper MS, Rundhaug JE, Mikulec C, Bowen R, Shen J, Lu Y, Lin K, Surh I, Fischer SM. The tumor promoting activity of the EP4 receptor for prostaglandin E2 in murine skin. Mol Oncol 2014; 8:1626-39. [PMID: 25034079 DOI: 10.1016/j.molonc.2014.06.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Revised: 06/21/2014] [Accepted: 06/23/2014] [Indexed: 10/25/2022] Open
Abstract
To determine whether the EP4 receptor for prostaglandin E2 (PGE2) contributes to the tumor promoting activity of PGs in murine skin, EP4 over-expressing mice (BK5.EP4) were generated and subjected carcinogenesis protocols. An initiation/promotion protocol resulted in 25-fold more squamous cell carcinomas (SCCs) in the BK5.EP4 mice than wild type (WT) mice. An increase in SCCs also occurred following treatment with initiator alone or UV irradiation. The initiator dimethylbenz[a]anthracene caused cytotoxicity in BK5.EP4, but not WT mice, characterized by sloughing of the interfollicular epidermis, regeneration and subsequent SCC development. A comparison of transcriptomes between BK5.EP4 and WT mice treated with PGE2 showed a significant upregulation of a number of genes known to be associated with tumor development, supporting a pro-tumorigenic role for the EP4 receptor.
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Affiliation(s)
- Melissa S Simper
- The Department of Molecular Carcinogenesis, Science Park, PO Box 389, The University of Texas MD Anderson Cancer Center, Smithville, TX 78957, USA
| | - Joyce E Rundhaug
- The Department of Molecular Carcinogenesis, Science Park, PO Box 389, The University of Texas MD Anderson Cancer Center, Smithville, TX 78957, USA
| | - Carol Mikulec
- The Department of Molecular Carcinogenesis, Science Park, PO Box 389, The University of Texas MD Anderson Cancer Center, Smithville, TX 78957, USA
| | - Rebecca Bowen
- The Department of Molecular Carcinogenesis, Science Park, PO Box 389, The University of Texas MD Anderson Cancer Center, Smithville, TX 78957, USA
| | - Jianjun Shen
- The Department of Molecular Carcinogenesis, Science Park, PO Box 389, The University of Texas MD Anderson Cancer Center, Smithville, TX 78957, USA
| | - Yue Lu
- The Department of Molecular Carcinogenesis, Science Park, PO Box 389, The University of Texas MD Anderson Cancer Center, Smithville, TX 78957, USA
| | - Kevin Lin
- The Department of Molecular Carcinogenesis, Science Park, PO Box 389, The University of Texas MD Anderson Cancer Center, Smithville, TX 78957, USA
| | - Inok Surh
- The Department of Molecular Carcinogenesis, Science Park, PO Box 389, The University of Texas MD Anderson Cancer Center, Smithville, TX 78957, USA
| | - Susan M Fischer
- The Department of Molecular Carcinogenesis, Science Park, PO Box 389, The University of Texas MD Anderson Cancer Center, Smithville, TX 78957, USA.
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8
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Manufacture of clinical-grade CD19-specific T cells stably expressing chimeric antigen receptor using Sleeping Beauty system and artificial antigen presenting cells. PLoS One 2013; 8:e64138. [PMID: 23741305 PMCID: PMC3669363 DOI: 10.1371/journal.pone.0064138] [Citation(s) in RCA: 126] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Accepted: 04/08/2013] [Indexed: 11/19/2022] Open
Abstract
Adoptive transfer of T cells expressing a CD19-specific chimeric antigen receptor (CAR) is being evaluated in multiple clinical trials. Our current approach to adoptive immunotherapy is based on a second generation CAR (designated CD19RCD28) that signals through a CD28 and CD3-ζ endodomain. T cells are electroporated with DNA plasmids from the Sleeping Beauty (SB) transposon/transposase system to express this CAR. Stable integrants of genetically modified T cells can then be retrieved when co-cultured with designer artificial antigen presenting cells (aAPC) in the presence of interleukin (IL)-2 and 21. Here, we reveal how the platform technologies of SB-mediated transposition and CAR-dependent propagation on aAPC were adapted for human application. Indeed, we have initiated clinical trials in patients with high-risk B-lineage malignancies undergoing autologous and allogeneic hematopoietic stem-cell transplantation (HSCT). We describe the process to manufacture clinical grade CD19-specific T cells derived from healthy donors. Three validation runs were completed in compliance with current good manufacturing practice for Phase I/II trials demonstrating that by 28 days of co-culture on γ-irradiated aAPC ∼10(10) T cells were produced of which >95% expressed CAR. These genetically modified and propagated T cells met all quality control testing and release criteria in support of infusion.
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9
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Adams EJ, Luoma AM. The adaptable major histocompatibility complex (MHC) fold: structure and function of nonclassical and MHC class I-like molecules. Annu Rev Immunol 2013; 31:529-61. [PMID: 23298204 DOI: 10.1146/annurev-immunol-032712-095912] [Citation(s) in RCA: 150] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The MHC fold is found in proteins that have a range of functions in the maintenance of an organism's health, from immune regulation to fat metabolism. Well adapted for antigen presentation, as seen for peptides in the classical MHC molecules and for lipids in CD1 molecules, the MHC fold has also been modified to perform Fc-receptor activity (e.g., FcRn) and for roles in host homeostasis (e.g., with HFE and ZAG). The more divergent MHC-like molecules, such as some of those that interact with the NKG2D receptor, represent the minimal MHC fold, doing away with the α3 domain and β2m while maintaining the α1/α2 platform domain for receptor engagement. Viruses have also co-opted the MHC fold for immune-evasive functions. The variations on the theme of a β-sheet topped by two semiparallel α-helices are discussed in this review, highlighting the fantastic adaptability of this fold for good and for bad.
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Affiliation(s)
- Erin J Adams
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, Illinois 60637, USA.
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10
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Kasahara M, Yoshida S. Immunogenetics of the NKG2D ligand gene family. Immunogenetics 2012; 64:855-67. [PMID: 22843249 DOI: 10.1007/s00251-012-0638-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Accepted: 07/18/2012] [Indexed: 12/31/2022]
Abstract
NKG2D ligands (NKG2DLs) are a group of major histocompatibility complex (MHC) class I-like molecules, the expression of which is induced by cellular stresses such as infection, tumorigenesis, heat shock, tissue damage, and DNA damage. They act as a molecular danger signal alerting the immune system for infected or neoplastic cells. Mammals have two families of NKG2DL genes: the MHC-encoded MIC gene family and the ULBP gene family encoded outside the MHC region in most mammals. Rodents such as mice and rats lack the MIC family of ligands. Interestingly, some mammals have NKG2DL-like molecules named MILL that are phylogenetically related to MIC, but do not function as NKG2DLs. In this paper, we review our current knowledge of the MIC, ULBP, and MILL gene families in representative mammalian species and discuss the origin and evolution of the NKG2DL gene family.
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Affiliation(s)
- Masanori Kasahara
- Department of Pathology, Hokkaido University Graduate School of Medicine, North-15 West-7, Sapporo 060-8638, Japan.
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11
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Popa N, Cedile O, Pollet-Villard X, Bagnis C, Durbec P, Boucraut J. RAE-1 is expressed in the adult subventricular zone and controls cell proliferation of neurospheres. Glia 2010; 59:35-44. [DOI: 10.1002/glia.21074] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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12
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Cédile O, Popa N, Pollet-Villard F, Garmy N, Ibrahim EC, Boucraut J. The NKG2D ligands RAE-1δ and RAE-1ε differ with respect to their receptor affinity, expression profiles and transcriptional regulation. PLoS One 2010; 5:e13466. [PMID: 20976056 PMCID: PMC2957426 DOI: 10.1371/journal.pone.0013466] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2010] [Accepted: 09/21/2010] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND RAE-1 is a ligand of the activating receptor NKG2D expressed by NK cells, NKT, γδT and some CD8(+)T lymphocytes. RAE-1 is overexpressed in tumor cell lines and its expression is induced after viral infection and genotoxic stress. We have recently demonstrated that RAE-1 is expressed in the adult subventricular zone (SVZ) from C57BL/6 mice. RAE-1 is also expressed in vitro by neural stem/progenitor cells (NSPCs) and plays a non-immune role in cell proliferation. The C57BL/6 mouse genome contains two rae-1 genes, rae-1δ and rae-1ε encoding two different proteins. The goals of this study are first to characterize the in vivo and in vitro expression of each gene and secondly to elucidate the mechanisms underlying their respective expression, which are far from known. PRINCIPAL FINDINGS We observed that Rae-1δ and Rae-1ε transcripts are differentially expressed according to tissues, pathological conditions and cell lines. Embryonic tissue and the adult SVZ mainly expressed Rae-1δ transcripts. The NSPCs derived from the SVZ also mainly expressed RAE-1δ. The interest of this result is especially related to the observation that RAE-1δ is a weak NKG2D ligand compared to RAE-1ε. On the contrary, cell lines expressed either similar levels of RAE-1δ and RAE-1ε proteins or only RAE-1ε. Since the protein expression correlated with the level of transcripts for each rae-1 gene, we postulated that transcriptional regulation is one of the main processes explaining the difference between RAE-1δ and RAE-1ε expression. We indeed identified two different promoter regions for each gene: one mainly involved in the control of rae-1δ gene expression and the other in the control of rae-1ε expression. CONCLUSIONS/SIGNIFICANCE RAE-1δ and RAE-1ε differ with respect to their function and the control of their expression. Immune function would be mainly exerted by RAE-1ε and non-immune function by RAE-1δ.
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Affiliation(s)
- Oriane Cédile
- CRN2M, CNRS UMR 6231, Université de la Méditerranée, Université Paul Cézanne, Faculté de Médecine, Marseille, France
| | - Natalia Popa
- CRN2M, CNRS UMR 6231, Université de la Méditerranée, Université Paul Cézanne, Faculté de Médecine, Marseille, France
| | - Frédéric Pollet-Villard
- CRN2M, CNRS UMR 6231, Université de la Méditerranée, Université Paul Cézanne, Faculté de Médecine, Marseille, France
| | - Nicolas Garmy
- CRN2M, CNRS UMR 6231, Université de la Méditerranée, Université Paul Cézanne, Faculté de Médecine, Marseille, France
| | - El Chérif Ibrahim
- NICN, CNRS, UMR 6184, Université de la Méditerranée, Faculté de Médecine, Marseille, France
| | - José Boucraut
- CRN2M, CNRS UMR 6231, Université de la Méditerranée, Université Paul Cézanne, Faculté de Médecine, Marseille, France
- * E-mail:
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Kondo M, Maruoka T, Otsuka N, Kasamatsu J, Fugo K, Hanzawa N, Kasahara M. Comparative genomic analysis of mammalian NKG2D ligand family genes provides insights into their origin and evolution. Immunogenetics 2010; 62:441-50. [PMID: 20376438 DOI: 10.1007/s00251-010-0438-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2010] [Accepted: 03/08/2010] [Indexed: 01/21/2023]
Abstract
NKG2D is a major activating receptor of natural killer cells. Its ligands are major histocompatibility complex (MHC) class I-like molecules whose expression is induced by cellular stresses such as infections and tumorigenesis. Humans have two families of NKG2D ligands (NKG2DL): MHC class I-related chains (MIC) encoded in the MHC and UL16-binding proteins (ULBP) encoded outside the MHC. By contrast, mice have only the latter family of ligands; instead, they have non-MHC-encoded MILL molecules that are closely related to MIC, but do not function as NKG2DL. To gain insights into the origin and evolution of MIC, ULBP, and MILL gene families, we conducted comparative genomic analysis of NKG2DL family genes in five mammalian species. In the opossum MHC, we identified a ULBP-like gene adjacent to a previously described MIC-like gene, suggesting that ULBP genes were originally encoded in the MHC. The opossum genome also contained a transcribed MILL-like gene in a region syntenic to the rodent regions encoding MILL molecules. These observations indicate that MIC-, ULBP-, and MILL-like genes emerged before the divergence of placental and marsupial mammals. Comparison of the human, cattle, rat, mouse, and opossum genomes indicates that after emigration from the MHC, ULBP genes underwent extensive duplications in each species. In mice, some of the ULBP genes appear to have been translocated telomerically on the same chromosome, forming a major cluster of existent NKG2DL genes.
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Affiliation(s)
- Mizuho Kondo
- Department of Pathology, Hokkaido University Graduate School of Medicine, North-15 West-7, Sapporo, 060-8638, Japan
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Current world literature. Curr Opin Rheumatol 2009; 21:656-65. [PMID: 20009876 DOI: 10.1097/bor.0b013e3283328098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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