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Yang ZX, Deng DH, Gao ZY, Zhang ZK, Fu YW, Wen W, Zhang F, Li X, Li HY, Zhang JP, Zhang XB. OliTag-seq enhances in cellulo detection of CRISPR-Cas9 off-targets. Commun Biol 2024; 7:696. [PMID: 38844522 PMCID: PMC11156888 DOI: 10.1038/s42003-024-06360-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 05/20/2024] [Indexed: 06/09/2024] Open
Abstract
The potential for off-target mutations is a critical concern for the therapeutic application of CRISPR-Cas9 gene editing. Current detection methodologies, such as GUIDE-seq, exhibit limitations in oligonucleotide integration efficiency and sensitivity, which could hinder their utility in clinical settings. To address these issues, we introduce OliTag-seq, an in-cellulo assay specifically engineered to enhance the detection of off-target events. OliTag-seq employs a stable oligonucleotide for precise break tagging and an innovative triple-priming amplification strategy, significantly improving the scope and accuracy of off-target site identification. This method surpasses traditional assays by providing comprehensive coverage across various sgRNAs and genomic targets. Our research particularly highlights the superior sensitivity of induced pluripotent stem cells (iPSCs) in detecting off-target mutations, advocating for using patient-derived iPSCs for refined off-target analysis in therapeutic gene editing. Furthermore, we provide evidence that prolonged Cas9 expression and transient HDAC inhibitor treatments enhance the assay's ability to uncover off-target events. OliTag-seq merges the high sensitivity typical of in vitro assays with the practical application of cellular contexts. This approach significantly improves the safety and efficacy profiles of CRISPR-Cas9 interventions in research and clinical environments, positioning it as an essential tool for the precise assessment and refinement of genome editing applications.
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Grants
- the National Key Research and Development Program of China (Grant Nos. 2019YFA0110803, 2019YFA0110204, and 2021YFA1100900), the National Natural Science Foundation of China (Grant Nos. 82070115 and 81890990), the Chinese Academy of Medical Sciences (CAMS) Innovation Fund for Medical Sciences (CIFMS) (Grant Nos. 2022-I2M-2-003, 2022-I2M-2-001, 2021-I2M-1-041, 2021-I2M-1-040, and 2021-I2M-1-001), the Nonprofit Central Research Institute Fund of Chinese Academy of Medical Sciences (Grant No. 2020-PT310-011), the Tianjin Synthetic Biotechnology Innovation Capacity Improvement Project (Grant No. TSBICIP-KJGG-017), the CAMS Fundamental Research Funds for Central Research Institutes (Grant No. 3332021093), the Haihe Laboratory of Cell Ecosystem Innovation Fund (Grant No. HH23KYZX0005 and HH22KYZX0022), the State Key Laboratory of Experimental Hematology Research Grant (Grant No. Z23-05), and the Postdoctoral Fellowship Program of CPSF (Grant No. GZB20230081)
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Affiliation(s)
- Zhi-Xue Yang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 300020, Tianjin, China
- Tianjin Institutes of Health Science, 301600, Tianjin, China
| | - Dong-Hao Deng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 300020, Tianjin, China
- Tianjin Institutes of Health Science, 301600, Tianjin, China
| | - Zhu-Ying Gao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 300020, Tianjin, China
- Tianjin Institutes of Health Science, 301600, Tianjin, China
| | - Zhi-Kang Zhang
- College of Computer Science and Technology, China University of Petroleum (East China), 266000, Qingdao, China
| | - Ya-Wen Fu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 300020, Tianjin, China
| | - Wei Wen
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 300020, Tianjin, China
- Tianjin Institutes of Health Science, 301600, Tianjin, China
| | - Feng Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 300020, Tianjin, China
- Tianjin Institutes of Health Science, 301600, Tianjin, China
| | - Xiang Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 300020, Tianjin, China
- Tianjin Institutes of Health Science, 301600, Tianjin, China
| | - Hua-Yu Li
- College of Computer Science and Technology, China University of Petroleum (East China), 266000, Qingdao, China.
| | - Jian-Ping Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 300020, Tianjin, China.
- Tianjin Institutes of Health Science, 301600, Tianjin, China.
| | - Xiao-Bing Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 300020, Tianjin, China.
- Tianjin Institutes of Health Science, 301600, Tianjin, China.
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2
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Kohn DB. Gene therapy for adenosine deaminase severe combined immune deficiency-An unexpected journey of four decades. Immunol Rev 2024; 322:148-156. [PMID: 38033164 DOI: 10.1111/imr.13293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 11/11/2023] [Accepted: 11/15/2023] [Indexed: 12/02/2023]
Abstract
Severe combined immune deficiency due to adenosine deaminase deficiency (ADA SCID) is an inborn error of immunity with pan-lymphopenia, due to accumulated cytotoxic adenine metabolites. ADA SCID has been treated using gene therapy with a normal human ADA gene added to autologous hematopoietic stem cells (HSC) for over 30 years. Iterative improvements in vector design, HSC processing methods, and clinical HSC transplant procedures have led nearly all ADA SCID gene therapy patients to achieve consistently beneficial immune restoration with stable engraftment of ADA gene-corrected HSC over the duration of observation (as long as 20 years). One gene therapy for ADA SCID is approved by the European Medicines Agency (EMA) in the European Union (EU) and another is being advanced to licensure in the U.S. and U.K. Despite the clear-cut benefits and safety of this curative gene and cell therapy, it remains challenging to achieve sustained availability and access, especially for rare disorders like ADA SCID.
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Affiliation(s)
- Donald B Kohn
- Department of Microbiology, Immunology & Molecular Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
- Department of Pediatrics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
- Department of Molecular & Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
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3
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Malach P, Kay C, Tinworth C, Patel F, Joosse B, Wade J, Rosa do Carmo M, Donovan B, Brugman M, Montiel-Equihua C, Francis N. Identification of a small molecule for enhancing lentiviral transduction of T cells. Mol Ther Methods Clin Dev 2023; 31:101113. [PMID: 37790244 PMCID: PMC10544093 DOI: 10.1016/j.omtm.2023.101113] [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] [Received: 04/21/2023] [Accepted: 09/13/2023] [Indexed: 10/05/2023]
Abstract
Genetic modification of cells using viral vectors has shown huge therapeutic benefit in multiple diseases. However, inefficient transduction contributes to the high cost of these therapies. Several transduction-enhancing small molecules have previously been identified; however, some may be toxic to the cells or patient, otherwise alter cellular characteristics, or further increase manufacturing complexity. In this study, we aimed to identify molecules capable of enhancing lentiviral transduction of T cells from available small-molecule libraries. We conducted a high-throughput flow-cytometry-based screen of 27,892 compounds, which subsequently was narrowed down to six transduction-enhancing small molecules for further testing with two therapeutic lentiviral vectors used to manufacture GSK's clinical T cell therapy products. We demonstrate enhanced transduction without a negative impact on other product attributes. Furthermore, we present results of transcriptomic analysis, suggesting alteration of ribosome biogenesis, resulting in reduced interferon response, as a potential mechanism of action for the transduction-enhancing activity of the lead compound. Finally, we demonstrate the ability of the lead transduction enhancer to produce a comparable T cell product using a 3-fold reduction in vector volume in our clinical manufacturing process, resulting in a predicted 15% reduction in the overall cost of goods.
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Affiliation(s)
- Paulina Malach
- Product Development, Cell and Gene Therapy, GSK Medicine Research Centre, Stevenage, Hertfordshire SG1 2NY, UK
| | - Charlotte Kay
- Product Development, Cell and Gene Therapy, GSK Medicine Research Centre, Stevenage, Hertfordshire SG1 2NY, UK
| | - Chris Tinworth
- Medicinal Chemistry, Medicine Design, GSK Medicine Research Centre, Stevenage, Hertfordshire SG1 2NY, UK
| | - Florence Patel
- Screening, Profiling and Molecular Biology, Medicine Design, GSK Upper Providence, Collegeville, PA 19426, USA
| | - Bryan Joosse
- Screening, Profiling and Molecular Biology, Medicine Design, GSK Upper Providence, Collegeville, PA 19426, USA
| | - Jennifer Wade
- Product Development, Cell and Gene Therapy, GSK Medicine Research Centre, Stevenage, Hertfordshire SG1 2NY, UK
| | - Marlene Rosa do Carmo
- Product Development, Cell and Gene Therapy, GSK Medicine Research Centre, Stevenage, Hertfordshire SG1 2NY, UK
| | - Brian Donovan
- Screening, Profiling and Molecular Biology, Medicine Design, GSK Upper Providence, Collegeville, PA 19426, USA
| | - Martijn Brugman
- Analytical Development, Cell and Gene Therapy, GSK Medicine Research Centre, Stevenage, Hertfordshire SG1 2NY, UK
| | - Claudia Montiel-Equihua
- Product Development, Cell and Gene Therapy, GSK Medicine Research Centre, Stevenage, Hertfordshire SG1 2NY, UK
| | - Natalie Francis
- Product Development, Cell and Gene Therapy, GSK Medicine Research Centre, Stevenage, Hertfordshire SG1 2NY, UK
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4
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Castiello MC, Ferrari S, Villa A. Correcting inborn errors of immunity: From viral mediated gene addition to gene editing. Semin Immunol 2023; 66:101731. [PMID: 36863140 PMCID: PMC10109147 DOI: 10.1016/j.smim.2023.101731] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 01/25/2023] [Accepted: 02/14/2023] [Indexed: 03/04/2023]
Abstract
Allogeneic hematopoietic stem cell transplantation is an effective treatment to cure inborn errors of immunity. Remarkable progress has been achieved thanks to the development and optimization of effective combination of advanced conditioning regimens and use of immunoablative/suppressive agents preventing rejection as well as graft versus host disease. Despite these tremendous advances, autologous hematopoietic stem/progenitor cell therapy based on ex vivo gene addition exploiting integrating γ-retro- or lenti-viral vectors, has demonstrated to be an innovative and safe therapeutic strategy providing proof of correction without the complications of the allogeneic approach. The recent advent of targeted gene editing able to precisely correct genomic variants in an intended locus of the genome, by introducing deletions, insertions, nucleotide substitutions or introducing a corrective cassette, is emerging in the clinical setting, further extending the therapeutic armamentarium and offering a cure to inherited immune defects not approachable by conventional gene addition. In this review, we will analyze the current state-of-the art of conventional gene therapy and innovative protocols of genome editing in various primary immunodeficiencies, describing preclinical models and clinical data obtained from different trials, highlighting potential advantages and limits of gene correction.
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Affiliation(s)
- Maria Carmina Castiello
- San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy; Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (IRGB-CNR), Milan, Italy
| | - Samuele Ferrari
- San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy; Vita-Salute San Raffaele University, Milan 20132, Italy
| | - Anna Villa
- San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy; Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (IRGB-CNR), Milan, Italy.
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5
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Cheng K, Feng X, Chai Z, Wang Z, Liu Z, Yan Z, Wang Y, Zhang S. 4-1BB-Based CAR T Cells Effectively Reverse Exhaustion and Enhance the Anti-Tumor Immune Response through Autocrine PD-L1 scFv Antibody. Int J Mol Sci 2023; 24:ijms24044197. [PMID: 36835603 PMCID: PMC9961031 DOI: 10.3390/ijms24044197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 02/03/2023] [Accepted: 02/08/2023] [Indexed: 02/22/2023] Open
Abstract
Exhaustion of chimeric antigen receptor (CAR) T cells is one of the limitations for CAR T efficacy in solid tumors and for tumor recurrence after initial CAR T treatment. Tumor treatment with a combination of programmed cell death receptor-1 (PD-1)/programmed cell death ligand-1 (PD-L1) blockage and CD28-based CAR T cells has been intensively studied. However, it remains largely unclear whether autocrine single-chain variable fragments (scFv) PD-L1 antibody can improve 4-1BB-based CAR T cell anti-tumor activity and revert CAR T cell exhaustion. Here, we studied T cells engineered with autocrine PD-L1 scFv and 4-1BB-containing CAR. The antitumor activity and exhaustion of CAR T cells were investigated in vitro and in a xenograft cancer model using NCG mice. CAR T cells with autocrine PD-L1 scFv antibody demonstrate enhanced anti-tumor activity in solid tumors and hematologic malignancies by blocking the PD-1/PD-L1 signaling. Importantly, we found that CAR T exhaustion was largely diminished by autocrine PD-L1 scFv antibody in vivo. As such, 4-1BB CAR T with autocrine PD-L1 scFv antibody combined the power of CAR T cells and the immune checkpoint inhibitor, thereby increasing the anti-tumor immune function and CAR T persistence, providing a cell therapy solution for a better clinical outcome.
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Affiliation(s)
- Kang Cheng
- Laboratory of Biotechnology Drugs, School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Xiangming Feng
- Laboratory of Biotechnology Drugs, School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Zhirong Chai
- Laboratory of Epigenetics and Translational Medicine, School of Life Sciences, Henan University, Kaifeng 475004, China
| | - Zhenzhen Wang
- Laboratory of Biotechnology Drugs, School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Zheng Liu
- Laboratory of Epigenetics and Translational Medicine, School of Life Sciences, Henan University, Kaifeng 475004, China
| | - Zhanchao Yan
- Laboratory of Epigenetics and Translational Medicine, School of Life Sciences, Henan University, Kaifeng 475004, China
| | - Yanming Wang
- Laboratory of Epigenetics and Translational Medicine, School of Life Sciences, Henan University, Kaifeng 475004, China
- Correspondence: (Y.W.); (S.Z.)
| | - Shoutao Zhang
- Laboratory of Biotechnology Drugs, School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
- Longhu Laboratory of Advanced Immunology, Zhengzhou 450001, China
- Correspondence: (Y.W.); (S.Z.)
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6
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Braun AH, Frank AM, Ho N, Buchholz CJ. Dasatinib is a potent enhancer for CAR T cell generation by CD3-targeted lentiviral vectors. Mol Ther Methods Clin Dev 2022; 28:90-98. [PMID: 36620073 PMCID: PMC9801082 DOI: 10.1016/j.omtm.2022.12.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022]
Abstract
CD3-targeted lentiviral vectors (CD3-LVs) mediate selective transduction of human T lymphocytes in vitro and in vivo while simultaneously activating the targeted cells. Previously, we have demonstrated that CD3-LV leads to downmodulation of the CD3:T cell receptor (TCR) complex. We therefore hypothesized that inhibition of CD3 phosphorylation by Src/Abl tyrosine kinase inhibitors such as dasatinib results in enhancement of gene delivery by T cell-targeted LVs. Indeed, dasatinib treatment of T cells prior to incubation with CD3-LV increased reporter gene delivery by 3- to 10-fold. Moreover, the presence of dasatinib enhanced selective transduction into non-activated target cells present in whole blood. When combined with delivery of the CD19-chimeric antigen receptor (CAR) gene, dasatinib increased CAR T cell numbers by close to 10-fold. Importantly, the short-term exposure of T cells to dasatinib during vector incubation did not interfere with tumor cell killing by the resulting CAR T cells and rather came along with less upregulated exhaustion markers and a more naive phenotype. Our data suggest that dasatinib prevents CD3-LV-induced phosphorylation and CD3:TCR intake, thereby increasing the amount of CD3-LV bound to the cell surface. This is the first description of dasatinib as transduction enhancer, an activity particularly relevant for CAR T cell generation with CD3-LV.
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Affiliation(s)
- Angela H. Braun
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, 63225 Langen, Germany,German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Annika M. Frank
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, 63225 Langen, Germany
| | - Naphang Ho
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, 63225 Langen, Germany
| | - Christian J. Buchholz
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, 63225 Langen, Germany,German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany,Corresponding author Christian J. Buchholz, Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Paul-Ehrlich-Straße 51-59, 63225 Langen, Germany.
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7
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Collon K, Gallo MC, Bell JA, Chang SW, Rodman JCS, Sugiyama O, Kohn DB, Lieberman JR. Improving Lentiviral Transduction of Human Adipose-Derived Mesenchymal Stem Cells. Hum Gene Ther 2022; 33:1260-1268. [PMID: 35859364 PMCID: PMC9808795 DOI: 10.1089/hum.2022.117] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 07/03/2022] [Indexed: 01/25/2023] Open
Abstract
Lentiviral transduction of human mesenchymal stem cells (MSCs) induces long-term transgene expression and holds great promise for multiple gene therapy applications. Polybrene is the most commonly used reagent to improve viral gene transfer efficiency in laboratory research; however, it is not approved for human use and has also been shown to impair MSC proliferation and differentiation. Therefore, there is a need for optimized transduction protocols that can also be adapted to clinical settings. LentiBOOST (LB) and protamine sulfate are alternative transduction enhancers (TEs) that can be manufactured to current Good Manufacturing Practice standards, are easily applied to existing protocols, and have been previously studied for the transduction of human CD34+ hematopoietic stem cells. In this study, we investigated these reagents for the enhancement of lentiviral transduction of adipose-derived MSCs. We found that the combination of LB and protamine sulfate could yield comparable or even superior transduction efficiency to polybrene, with no dose-dependent adverse effects on cell viability or stem cell characteristics. This combination of TEs represents a valuable clinically compatible alternative to polybrene with the potential to significantly improve the efficiency of lentiviral transduction of MSCs for gene therapy applications.
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Affiliation(s)
- Kevin Collon
- Department of Orthopaedic Surgery, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Matthew C. Gallo
- Department of Orthopaedic Surgery, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Jennifer A. Bell
- Department of Orthopaedic Surgery, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Stephanie W. Chang
- Department of Orthopaedic Surgery, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - John Croom Sueiro Rodman
- Southern California Clinical and Translational Science Institute, University of Southern California, Los Angeles, California, USA; and
| | - Osamu Sugiyama
- Department of Orthopaedic Surgery, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Donald B. Kohn
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Jay R. Lieberman
- Department of Orthopaedic Surgery, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
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8
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Smith RH, Bloomer H, Fink D, Keyvanfar K, Nasimuzzaman M, Sancheznieto F, Dutta R, Guenther Bui K, Alvarado LJ, Bauer TR, Hickstein DD, Russell DW, Malik P, van der Loo JC, Highfill SL, Kuhns DB, Pirooznia M, Larochelle A. Preclinical Evaluation of Foamy Virus Vector-Mediated Gene Addition in Human Hematopoietic Stem/Progenitor Cells for Correction of Leukocyte Adhesion Deficiency Type 1. Hum Gene Ther 2022; 33:1293-1304. [PMID: 36094106 PMCID: PMC9808799 DOI: 10.1089/hum.2022.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 08/23/2022] [Indexed: 01/13/2023] Open
Abstract
Ex vivo gene therapy procedures targeting hematopoietic stem and progenitor cells (HSPCs) predominantly utilize lentivirus-based vectors for gene transfer. We provide the first pre-clinical evidence of the therapeutic utility of a foamy virus vector (FVV) for the genetic correction of human leukocyte adhesion deficiency type 1 (LAD-1), an inherited primary immunodeficiency resulting from mutation of the β2 integrin common chain, CD18. CD34+ HSPCs isolated from a severely affected LAD-1 patient were transduced under a current good manufacturing practice-compatible protocol with FVV harboring a therapeutic CD18 transgene. LAD-1-associated cellular chemotactic defects were ameliorated in transgene-positive, myeloid-differentiated LAD-1 cells assayed in response to a strong neutrophil chemoattractant in vitro. Xenotransplantation of vector-transduced LAD-1 HSPCs in immunodeficient (NSG) mice resulted in long-term (∼5 months) human cell engraftment within murine bone marrow. Moreover, engrafted LAD-1 myeloid cells displayed in vivo levels of transgene marking previously reported to ameliorate the LAD-1 phenotype in a large animal model of the disease. Vector insertion site analysis revealed a favorable vector integration profile with no overt evidence of genotoxicity. These results coupled with the unique biological features of wild-type foamy virus support the development of FVVs for ex vivo gene therapy of LAD-1.
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Affiliation(s)
- Richard H. Smith
- Cellular and Molecular Therapeutics Branch, National Heart, Lung, Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Hanan Bloomer
- Cellular and Molecular Therapeutics Branch, National Heart, Lung, Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Danielle Fink
- Neutrophil Monitoring Lab, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Keyvan Keyvanfar
- Cellular and Molecular Therapeutics Branch, National Heart, Lung, Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Md Nasimuzzaman
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Fátima Sancheznieto
- Cellular and Molecular Therapeutics Branch, National Heart, Lung, Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Roop Dutta
- Cellular and Molecular Therapeutics Branch, National Heart, Lung, Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Kacey Guenther Bui
- Cellular and Molecular Therapeutics Branch, National Heart, Lung, Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Luigi J. Alvarado
- Cellular and Molecular Therapeutics Branch, National Heart, Lung, Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Thomas R. Bauer
- Immune Deficiency-Cellular Therapy Program, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Dennis D. Hickstein
- Immune Deficiency-Cellular Therapy Program, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - David W. Russell
- Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Punam Malik
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Johannes C.M. van der Loo
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Steven L. Highfill
- Center for Cellular Engineering, Department of Transfusion Medicine, Clinical Center, National Institutes of Health, Bethesda, Maryland, USA
| | - Douglas B. Kuhns
- Neutrophil Monitoring Lab, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Mehdi Pirooznia
- Laboratory of Bioinformatics and Computational Biology, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Andre Larochelle
- Cellular and Molecular Therapeutics Branch, National Heart, Lung, Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
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9
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Abstract
The earliest conceptual history of gene therapy began with the recognition of DNA as the transforming substance capable of changing the phenotypic character of a bacterium and then as the carrier of the genomic code. Early studies of oncogenic viruses that could insert into the mammalian genome led to the concept that these same viruses might be engineered to carry new genetic material into mammalian cells, including human hematopoietic stem cells (HSC). In addition to properly engineered vectors capable of efficient safe transduction of HSC, successful gene therapy required the development of efficient materials, methods, and equipment to procure, purify, and culture HSC. Increased understanding of the preparative conditioning of patients was needed to optimize the engraftment of genetically modified HSC. Testing concepts in pivotal clinical trials to assess the efficacy and determine the cause of adverse events has advanced the efficiency and safety of gene therapy. This article is a historical overview of the separate threads of discovery that joined together to comprise our current state of gene therapy targeting HSC.
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10
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Strack A, Deinzer A, Thirion C, Schrödel S, Dörrie J, Sauerer T, Steinkasserer A, Knippertz I. Breaking Entry-and Species Barriers: LentiBOOST ® Plus Polybrene Enhances Transduction Efficacy of Dendritic Cells and Monocytes by Adenovirus 5. Viruses 2022; 14:v14010092. [PMID: 35062296 PMCID: PMC8781300 DOI: 10.3390/v14010092] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 12/29/2021] [Indexed: 12/19/2022] Open
Abstract
Due to their ability to trigger strong immune responses, adenoviruses (HAdVs) in general and the serotype5 (HAdV-5) in particular are amongst the most popular viral vectors in research and clinical application. However, efficient transduction using HAdV-5 is predominantly achieved in coxsackie and adenovirus receptor (CAR)-positive cells. In the present study, we used the transduction enhancer LentiBOOST® comprising the polycationic Polybrene to overcome these limitations. Using LentiBOOST®/Polybrene, we yielded transduction rates higher than 50% in murine bone marrow-derived dendritic cells (BMDCs), while maintaining their cytokine expression profile and their capability to induce T-cell proliferation. In human dendritic cells (DCs), we increased the transduction rate from 22% in immature (i)DCs or 43% in mature (m)DCs to more than 80%, without inducing cytotoxicity. While expression of specific maturation markers was slightly upregulated using LentiBOOST®/Polybrene on iDCs, no effect on mDC phenotype or function was observed. Moreover, we achieved efficient HAdV5 transduction also in human monocytes and were able to subsequently differentiate them into proper iDCs and functional mDCs. In summary, we introduce LentiBOOST® comprising Polybrene as a highly potent adenoviral transduction agent for new in-vitro applications in a set of different immune cells in both mice and humans.
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Affiliation(s)
- Astrid Strack
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Hartmannstr. 14, 91052 Erlangen, Germany; (A.D.); (A.S.)
- Correspondence: (A.S.); (I.K.)
| | - Andrea Deinzer
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Hartmannstr. 14, 91052 Erlangen, Germany; (A.D.); (A.S.)
- Institute of Clinical Microbiology, Immunology and Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Wasserturmstraße 3/5, 91054 Erlangen, Germany
| | - Christian Thirion
- SIRION Biotech GmbH, Am Klopferspitz 19, 82152 Martinsried, Germany; (C.T.); (S.S.)
| | - Silke Schrödel
- SIRION Biotech GmbH, Am Klopferspitz 19, 82152 Martinsried, Germany; (C.T.); (S.S.)
| | - Jan Dörrie
- Department of Dermatology, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Hartmannstr. 14, 91052 Erlangen, Germany; (J.D.); (T.S.)
| | - Tatjana Sauerer
- Department of Dermatology, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Hartmannstr. 14, 91052 Erlangen, Germany; (J.D.); (T.S.)
| | - Alexander Steinkasserer
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Hartmannstr. 14, 91052 Erlangen, Germany; (A.D.); (A.S.)
| | - Ilka Knippertz
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Hartmannstr. 14, 91052 Erlangen, Germany; (A.D.); (A.S.)
- Correspondence: (A.S.); (I.K.)
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11
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Oleuropein Activates Neonatal Neocortical Proteasomes, but Proteasome Gene Targeting by AAV9 Is Variable in a Clinically Relevant Piglet Model of Brain Hypoxia-Ischemia and Hypothermia. Cells 2021; 10:cells10082120. [PMID: 34440889 PMCID: PMC8391411 DOI: 10.3390/cells10082120] [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] [Received: 07/19/2021] [Revised: 08/13/2021] [Accepted: 08/16/2021] [Indexed: 10/26/2022] Open
Abstract
Cerebral hypoxia-ischemia (HI) compromises the proteasome in a clinically relevant neonatal piglet model. Protecting and activating proteasomes could be an adjunct therapy to hypothermia. We investigated whether chymotrypsin-like proteasome activity differs regionally and developmentally in the neonatal brain. We also tested whether neonatal brain proteasomes can be modulated by oleuropein, an experimental pleiotropic neuroprotective drug, or by targeting a proteasome subunit gene using recombinant adeno-associated virus-9 (AAV). During post-HI hypothermia, we treated piglets with oleuropein, used AAV-short hairpin RNA (shRNA) to knock down proteasome activator 28γ (PA28γ), or enforced PA28γ using AAV-PA28γ with green fluorescent protein (GFP). Neonatal neocortex and subcortical white matter had greater proteasome activity than did liver and kidney. Neonatal white matter had higher proteasome activity than did juvenile white matter. Lower arterial pH 1 h after HI correlated with greater subsequent cortical proteasome activity. With increasing brain homogenate protein input into the assay, the initial proteasome activity increased only among shams, whereas HI increased total kinetic proteasome activity. OLE increased the initial neocortical proteasome activity after hypothermia. AAV drove GFP expression, and white matter PA28γ levels correlated with proteasome activity and subunit levels. However, AAV proteasome modulation varied. Thus, neonatal neocortical proteasomes can be pharmacologically activated. HI slows the initial proteasome performance, but then augments ongoing catalytic activity. AAV-mediated genetic manipulation in the piglet brain holds promise, though proteasome gene targeting requires further development.
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12
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Lieske A, Ha TC, Schambach A, Maetzig T. An improved lentiviral fluorescent genetic barcoding approach distinguishes hematopoietic stem cell properties in multiplexed in vivo experiments. Hum Gene Ther 2021; 32:1280-1294. [PMID: 34139894 DOI: 10.1089/hum.2021.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Hematopoietic stem cells (HSC) represent a rare cell population of particular interest for biomedical research and regenerative medicine. Various marker combinations enable the isolation of HSCs but fail to reach purity in transplantation assays. To reduce animal consumption, we developed a multiplexing system based on lentiviral fluorescent genetic barcoding (FGB) to enable the parallel characterization of multiple HSC samples within single animals. While previous FGB-mediated HSC multiplexing experiments achieved high in vitro gene marking rates, in vivo persistence of transduced cells remained sub-optimal. Thus, we aimed to optimize vector design and gene transfer protocols to demonstrate the applicability of FGB for functional characterization of two highly similar HSC populations in a reduced number of mice. We developed a set of 6 new lentiviral FGB vectors, utilizing individual and combinatorial expression of Azami Green, mCherry, and YFP derivatives. Gene transfer rates were optimized by overnight transduction of pre-stimulated HSCs with titrated vector doses. Populations for competitive transplantation experiments were identified by immunophenotyping murine HSCs. This identified an LSK-SLAM- (Lin-Sca-1+cKit+CD48-CD150+EPCR-) cell subpopulation that lacks EPCR expression and exhibits prospectively reduced self-renewal potential compared with prototypical ESLAM (CD45+EPCR+CD48-CD150+) HSCs. We monitored 30 data points per HSC-subpopulation in two independent experiments (each n=5) after co-transplantation of 3 uniquely color-coded ESLAM and LSK-SLAM- samples per recipient. While the first experiment was hampered by data fluctuations, increasing cell numbers and exchange of the internal promoter in the second experiment led to 74.4% chimerism, with 87.1% of fluorescent cells derived from ESLAM HSCs. Furthermore, ESLAM-derived cells produced 88.1% of myeloid cells, which is indicative of their origin from long-term repopulating HSCs. This work verifies the importance of EPCR for long-term repopulating HSCs and demonstrates the applicability of our optimized FGB-driven multiplexing approach for the efficient characterization of blood cell populations in biomedical research.
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Affiliation(s)
- Anna Lieske
- Hannover Medical School, Institute of Experimental Hematology, Hannover, Germany.,Hannover Medical School, Clinic for Pediatric Hematology and Oncology, Hannover, Germany.,Hannover Medical School, 9177, REBIRTH Cluster of Excellence, Hannover, Germany;
| | - Teng-Cheong Ha
- Hannover Medical School, 9177, Institute of Experimental Hematology, Hannover, State..., Germany.,Hannover Medical School, 9177, REBIRTH Cluster of Excellence, Hannover, Germany;
| | - Axel Schambach
- Hannover Medical School, Institute of Experimental Hematology, Hannover, Germany.,Hannover Medical School, 9177, REBIRTH Cluster of Excellence, Hannover, Germany.,Harvard Medical School, 1811, Division of Hematology/Oncology, Boston Children's Hospital, Boston, Massachusetts, United States;
| | - Tobias Maetzig
- Hannover Medical School, Insitute of Experimental Hematology, Hannover, Germany.,Hannover Medical School, Clinic for Pediatric Hematology and Oncology, Hannover, Germany.,Hannover Medical School, 9177, REBIRTH Cluster of Excellence, Hannover, Germany;
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13
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Kadekar S, Nawale GN, Rangasami VK, Le Joncour V, Laakkonen P, Hilborn J, Varghese OP, Oommen OP. Redox responsive Pluronic micelle mediated delivery of functional siRNA: a modular nano-assembly for targeted delivery. Biomater Sci 2021; 9:3939-3944. [PMID: 34002185 DOI: 10.1039/d1bm00428j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
There is an unmet need to develop strategies that allow site-specific delivery of short interfering RNA (siRNA) without any associated toxicity. To address this challenge, we have developed a novel siRNA delivery platform using chemically modified pluronic F108 as an amphiphilic polymer with a releasable bioactive disulfide functionality. The micelles exhibited thermoresponsive properties and showed a hydrodynamic size of ∼291 nm in DLS and ∼200-250 nm in SEM at 37 °C. The grafting of free disulfide pyridyl groups enhanced the transfection efficiency and was successfully demonstrated in human colon carcinoma (HCT116; 88%) and glioma cell lines (U87; 90%), non-cancerous human dermal fibroblast (HDF; 90%) cells as well as in mouse embryonic stem (mES; 54%) cells. To demonstrate the versatility of our modular nanocarrier design, we conjugated the MDGI receptor targeting COOP peptide on the particle surface that allowed the targeted delivery of the cargo molecules to human patent-derived primary BT-13 gliospheres. Transfection experiments with this design resulted in ∼65% silencing of STAT3 mRNA in BT-13 gliospheres, while only ∼20% of gene silencing was observed in the absence of the peptide. We believe that our delivery method solves current problems related to the targeted delivery of RNAi drugs for potential in vivo applications.
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Affiliation(s)
- Sandeep Kadekar
- Translational Chemical Biology Laboratory, Polymer Chemistry Division, Department of Chemistry - Ångström Laboratory, Uppsala University, 751 21, Uppsala, Sweden.
| | - Ganesh N Nawale
- Translational Chemical Biology Laboratory, Polymer Chemistry Division, Department of Chemistry - Ångström Laboratory, Uppsala University, 751 21, Uppsala, Sweden.
| | - Vignesh K Rangasami
- Translational Chemical Biology Laboratory, Polymer Chemistry Division, Department of Chemistry - Ångström Laboratory, Uppsala University, 751 21, Uppsala, Sweden. and Bioengineering and Nanomedicine Group, Faculty of Medicine and Health Technologies, Tampere University, 33720, Tampere, Finland.
| | - Vadim Le Joncour
- Translational Cancer Medicine Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Pirjo Laakkonen
- Translational Cancer Medicine Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Jöns Hilborn
- Polymer Chemistry, Department of Chemistry - Ångström Laboratory, Uppsala University, 751 21, Uppsala, Sweden
| | - Oommen P Varghese
- Translational Chemical Biology Laboratory, Polymer Chemistry Division, Department of Chemistry - Ångström Laboratory, Uppsala University, 751 21, Uppsala, Sweden.
| | - Oommen P Oommen
- Bioengineering and Nanomedicine Group, Faculty of Medicine and Health Technologies, Tampere University, 33720, Tampere, Finland.
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14
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Schejtman A, Vetharoy W, Choi U, Rivat C, Theobald N, Piras G, Leon-Rico D, Buckland K, Armenteros-Monterroso E, Benedetti S, Ashworth MT, Rothe M, Schambach A, Gaspar HB, Kang EM, Malech HL, Thrasher AJ, Santilli G. Preclinical Optimization and Safety Studies of a New Lentiviral Gene Therapy for p47 phox-Deficient Chronic Granulomatous Disease. Hum Gene Ther 2021; 32:949-958. [PMID: 33740872 PMCID: PMC8575060 DOI: 10.1089/hum.2020.276] [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: 11/12/2022] Open
Abstract
Chronic granulomatous disease (CGD) is an inherited blood disorder of phagocytic cells that renders patients susceptible to infections and inflammation. A recent clinical trial of lentiviral gene therapy for the most frequent form of CGD, X-linked, has demonstrated stable correction over time, with no adverse events related to the gene therapy procedure. We have recently developed a parallel lentiviral vector for p47phox-deficient CGD (p47phoxCGD), the second most common form of this disease. Using this vector, we have observed biochemical correction of CGD in a mouse model of the disease. In preparation for clinical trial approval, we have performed standardized preclinical studies following Good Laboratory Practice (GLP) principles, to assess the safety of the gene therapy procedure. We report no evidence of adverse events, including mutagenesis and tumorigenesis, in human hematopoietic stem cells transduced with the lentiviral vector. Biodistribution studies of transduced human CD34+ cells indicate that the homing properties or engraftment ability of the stem cells is not negatively affected. CD34+ cells derived from a p47phoxCGD patient were subjected to an optimized transduction protocol and transplanted into immunocompromised mice. After the procedure, patient-derived neutrophils resumed their function, suggesting that gene correction was successful. These studies pave the way to a first-in-man clinical trial of lentiviral gene therapy for the treatment of p47phoxCGD.
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Affiliation(s)
- Andrea Schejtman
- Molecular and Cellular Immunology Unit, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Winston Vetharoy
- Molecular and Cellular Immunology Unit, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Uimook Choi
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Christine Rivat
- Great Ormond Street Hospital for Children, NHS Foundation Trust, London, United Kingdom
| | - Narda Theobald
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Giuseppa Piras
- Molecular and Cellular Immunology Unit, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Diego Leon-Rico
- Molecular and Cellular Immunology Unit, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Karen Buckland
- Molecular and Cellular Immunology Unit, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Elena Armenteros-Monterroso
- Molecular and Cellular Immunology Unit, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Sara Benedetti
- Molecular and Cellular Immunology Unit, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Michael T Ashworth
- Department of Histopathology, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, United Kingdom
| | - Michael Rothe
- Institute of Experimental Hematology, Hannover Medical School, Hannover, Germany
| | - Axel Schambach
- Institute of Experimental Hematology, Hannover Medical School, Hannover, Germany.,Division of Hematology/Oncology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA; and
| | | | - Elizabeth M Kang
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Harry L Malech
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Adrian J Thrasher
- Molecular and Cellular Immunology Unit, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom.,Great Ormond Street Hospital for Children, NHS Foundation Trust, London, United Kingdom
| | - Giorgia Santilli
- Molecular and Cellular Immunology Unit, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
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15
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Brayshaw LL, Martinez-Fleites C, Athanasopoulos T, Southgate T, Jespers L, Herring C. The role of small molecules in cell and gene therapy. RSC Med Chem 2021; 12:330-352. [PMID: 34046619 PMCID: PMC8130622 DOI: 10.1039/d0md00221f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 09/25/2020] [Indexed: 01/22/2023] Open
Abstract
Cell and gene therapies have achieved impressive results in the treatment of rare genetic diseases using gene corrected stem cells and haematological cancers using chimeric antigen receptor T cells. However, these two fields face significant challenges such as demonstrating long-term efficacy and safety, and achieving cost-effective, scalable manufacturing processes. The use of small molecules is a key approach to overcome these barriers and can benefit cell and gene therapies at multiple stages of their lifecycle. For example, small molecules can be used to optimise viral vector production during manufacturing or used in the clinic to enhance the resistance of T cell therapies to the immunosuppressive tumour microenvironment. Here, we review current uses of small molecules in cell and gene therapy and highlight opportunities for medicinal chemists to further consolidate the success of cell and gene therapies.
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Affiliation(s)
- Lewis L Brayshaw
- Cell & Gene Therapy Discovery Research, Medicinal Science & Technology, GlaxoSmithKline Medicines Research Centre Gunnels Wood Road Stevenage SG1 2NY UK
| | - Carlos Martinez-Fleites
- Protein Degradation Group, Medicinal Science & Technology, GlaxoSmithKline Medicines Research Centre Gunnels Wood Road Stevenage SG1 2NY UK
| | - Takis Athanasopoulos
- Cell & Gene Therapy Discovery Research, Medicinal Science & Technology, GlaxoSmithKline Medicines Research Centre Gunnels Wood Road Stevenage SG1 2NY UK
| | - Thomas Southgate
- Cell & Gene Therapy Discovery Research, Medicinal Science & Technology, GlaxoSmithKline Medicines Research Centre Gunnels Wood Road Stevenage SG1 2NY UK
| | - Laurent Jespers
- Cell & Gene Therapy Discovery Research, Medicinal Science & Technology, GlaxoSmithKline Medicines Research Centre Gunnels Wood Road Stevenage SG1 2NY UK
| | - Christopher Herring
- Cell & Gene Therapy Discovery Research, Medicinal Science & Technology, GlaxoSmithKline Medicines Research Centre Gunnels Wood Road Stevenage SG1 2NY UK
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16
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Condor Capcha JM, Lambert G, Dykxhoorn DM, Salerno AG, Hare JM, Whitt MA, Pahwa S, Jayaweera DT, Shehadeh LA. Generation of SARS-CoV-2 Spike Pseudotyped Virus for Viral Entry and Neutralization Assays: A 1-Week Protocol. Front Cardiovasc Med 2021; 7:618651. [PMID: 33521067 PMCID: PMC7843445 DOI: 10.3389/fcvm.2020.618651] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 12/11/2020] [Indexed: 12/22/2022] Open
Abstract
The COVID-19 pandemic caused by the SARS-CoV-2 coronavirus requires reliable assays for studying viral entry mechanisms which remains poorly understood. This knowledge is important for the development of therapeutic approaches to control SARS-CoV-2 infection by permitting the screening for neutralizing antibodies and other agents that can block infection. This is particularly important for patients who are at high risk for severe outcomes related to COVID-19. The production of pseudotyped viral particles may seem like a daunting task for a non-virology laboratory without experience in the two most commonly used pseudotyping systems, namely retro/lentiviruses and vesicular stomatitis virus (VSV) which lacks the VSV envelope glycoprotein (VSVΔG). By incorporating the most up-to-date knowledge, we have developed a detailed, easy-to-follow novel protocol for producing SARS-CoV-2 spike-bearing pseudovirus using the VSV-ΔG system. We describe the infection assay which uses GFP fluorescence as a measure of infection in a 24-well live imaging system. We present results of our optimization of the system to enhance viral infection levels through the over-expression of human ACE2 receptor and the overexpression of at least one of two proteases - TMPRSS2 or Furin, as well as, supplementation with Poloxamer 407 (P407) and Prostaglandin E2 (PGE2) as adjuvants. We show that the system works efficiently in three unrelated, clinically relevant cell lines: human 293T (renal epithelial) cells, human Calu-3 (lung epithelial) cells, and the non-human primate (African Green Monkey) cell line, Vero-E6 (renal epithelial) cells. In addition, we have used this system to show infection of human induced pluripotent stem cell-derived cardiomyocytes (iPS-CMs). This system is efficient (virus generation, titration, and infection assays can be performed in 1 week), quantitative, inexpensive, and readily scalable for application in drug development and therapeutic screening approaches.
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Affiliation(s)
- Jose Manuel Condor Capcha
- Division of Cardiology, Department of Medicine, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States.,Interdisciplinary Stem Cell Institute, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States
| | - Guerline Lambert
- Division of Cardiology, Department of Medicine, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States
| | - Derek M Dykxhoorn
- Dr. John T. Macdonald Foundation Department of Human Genetics, John P. Hussman Institute for Human Genomics, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States
| | - Alessandro G Salerno
- Division of Cardiology, Department of Medicine, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States.,Interdisciplinary Stem Cell Institute, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States
| | - Joshua M Hare
- Division of Cardiology, Department of Medicine, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States.,Interdisciplinary Stem Cell Institute, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States
| | - Michael A Whitt
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Savita Pahwa
- Department of Microbiology and Immunology, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States
| | - Dushyantha T Jayaweera
- Interdisciplinary Stem Cell Institute, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States.,Division of Infectious Disease, Department of Medicine, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States
| | - Lina A Shehadeh
- Division of Cardiology, Department of Medicine, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States.,Interdisciplinary Stem Cell Institute, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States.,Peggy and Harold Katz Family Drug Discovery Center, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States
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17
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Anastasov N, Hirmer E, Klenner M, Ott J, Falkenberg N, Bao X, Mutschelknaus L, Moertl S, Combs S, Atkinson MJ, Schmid T. MEK1 Inhibitor Combined with Irradiation Reduces Migration of Breast Cancer Cells Including miR-221 and ZEB1 EMT Marker Expression. Cancers (Basel) 2020; 12:cancers12123760. [PMID: 33327491 PMCID: PMC7764972 DOI: 10.3390/cancers12123760] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/02/2020] [Accepted: 12/09/2020] [Indexed: 12/20/2022] Open
Abstract
Simple Summary Combined chemotherapy and radiotherapy are an effective treatment for invasive breast cancer. However, some studies suggest that such interventions may increase the risk of metastasis. Cell metastatic behavior is highly dependent on RAS-RAF-MEK pathway and its downstream target activation, including miR-221 overexpression and epithelial-to-mesenchymal transition (EMT). By using MEK1 inhibitor (TAK-733) in combination with radiation therapy for breast cancer cells, significant decrease in migration capacity, including reduction of miR-221 and EMT (ZEB1) marker expression was observed. miR-221 holds great potential as therapeutic biomarker and target for new drug developments, however more insight into efficiency of miR-221 inhibition needs to be followed in the future. Abstract The miR-221 expression is dependent on the oncogenic RAS-RAF-MEK pathway activation and influences epithelial-to-mesenchymal transition (EMT). The Cancer Genome Atlas (TCGA) database analysis showed high gene significance for ZEB1 with EMT module analysis and miR-221 overexpression within the triple-negative breast cancer (TNBC) and HER2+ subgroups when compared to luminal A/B subgroups. EMT marker expression analysis after MEK1 (TAK-733) inhibitor treatment and irradiation was combined with miR-221 and ZEB1 expression analysis. The interaction of miR-221 overexpression with irradiation and its influence on migration, proliferation, colony formation and subsequent EMT target activation were investigated. The results revealed that MEK1 inhibitor treatment combined with irradiation could decrease the migratory potential of breast cancer cells including reduction of miR-221 and corresponding downstream ZEB1 (EMT) marker expression. The clonogenic survival assays revealed that miR-221 overexpressing SKBR3 cells were more radioresistant when compared to the control. Remarkably, the effect of miR-221 overexpression on migration in highly proliferative and highly HER2-positive SKBR3 cells remained constant even upon 8 Gy irradiation. Further, in naturally miR-221-overexpressing MDA-MB-231 cells, the proliferation and migration significantly decrease after miR-221 knockdown. This leads to the assumption that radiation alone is not reducing migration capacity of miR-221-overexpressing cells and that additional factors play an important role in this context. The miR-221/ZEB1 activity is efficiently targeted upon MEK1 inhibitor (TAK-733) treatment and when combined with irradiation treatment, significant reduction in migration of breast cancer cells was shown.
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Affiliation(s)
- Nataša Anastasov
- Institute of Radiation Biology, Helmholtz Zentrum München-German Research Center for Environmental Health, 85764 Neuherberg, Germany; (E.H.); (M.K.); (J.O.); (X.B.); (L.M.); (S.M.); (M.J.A.)
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München-German Research Center for Environmental Health, 85764 Neuherberg, Germany
- Correspondence: ; Tel.: +49-893-187-3798; Fax: +49-893-187-3017
| | - Elisabeth Hirmer
- Institute of Radiation Biology, Helmholtz Zentrum München-German Research Center for Environmental Health, 85764 Neuherberg, Germany; (E.H.); (M.K.); (J.O.); (X.B.); (L.M.); (S.M.); (M.J.A.)
- Institute of Radiation Medicine, Helmholtz Zentrum München-German Research Center for Environmental Health, 85764 Neuherberg, Germany; (S.C.); (T.S.)
| | - Marbod Klenner
- Institute of Radiation Biology, Helmholtz Zentrum München-German Research Center for Environmental Health, 85764 Neuherberg, Germany; (E.H.); (M.K.); (J.O.); (X.B.); (L.M.); (S.M.); (M.J.A.)
| | - Jessica Ott
- Institute of Radiation Biology, Helmholtz Zentrum München-German Research Center for Environmental Health, 85764 Neuherberg, Germany; (E.H.); (M.K.); (J.O.); (X.B.); (L.M.); (S.M.); (M.J.A.)
- Institute of Radiation Medicine, Helmholtz Zentrum München-German Research Center for Environmental Health, 85764 Neuherberg, Germany; (S.C.); (T.S.)
| | - Natalie Falkenberg
- Institute of Pathology, Technical University of Munich (TUM), 81675 Munich, Germany;
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich (TUM), 81675 Munich, Germany
| | - Xuanwen Bao
- Institute of Radiation Biology, Helmholtz Zentrum München-German Research Center for Environmental Health, 85764 Neuherberg, Germany; (E.H.); (M.K.); (J.O.); (X.B.); (L.M.); (S.M.); (M.J.A.)
| | - Lisa Mutschelknaus
- Institute of Radiation Biology, Helmholtz Zentrum München-German Research Center for Environmental Health, 85764 Neuherberg, Germany; (E.H.); (M.K.); (J.O.); (X.B.); (L.M.); (S.M.); (M.J.A.)
| | - Simone Moertl
- Institute of Radiation Biology, Helmholtz Zentrum München-German Research Center for Environmental Health, 85764 Neuherberg, Germany; (E.H.); (M.K.); (J.O.); (X.B.); (L.M.); (S.M.); (M.J.A.)
- Federal Office of Radiation Protection, 85764 Oberschleissheim, Germany
| | - Stephanie Combs
- Institute of Radiation Medicine, Helmholtz Zentrum München-German Research Center for Environmental Health, 85764 Neuherberg, Germany; (S.C.); (T.S.)
- Department of Radiation Oncology, School of Medicine, Technical University of Munich (TUM), 81675 Munich, Germany
| | - Michael J. Atkinson
- Institute of Radiation Biology, Helmholtz Zentrum München-German Research Center for Environmental Health, 85764 Neuherberg, Germany; (E.H.); (M.K.); (J.O.); (X.B.); (L.M.); (S.M.); (M.J.A.)
- Radiation Biology, Technical University of Munich, 81675 Munich, Germany
| | - Thomas Schmid
- Institute of Radiation Medicine, Helmholtz Zentrum München-German Research Center for Environmental Health, 85764 Neuherberg, Germany; (S.C.); (T.S.)
- Department of Radiation Oncology, School of Medicine, Technical University of Munich (TUM), 81675 Munich, Germany
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18
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Abstract
Haematopoietic stem and progenitor cell (HSPC) gene therapy has emerged as an effective treatment modality for monogenic disorders of the blood system such as primary immunodeficiencies and β-thalassaemia. Medicinal products based on autologous HSPCs corrected using lentiviral and gammaretroviral vectors have now been approved for clinical use, and the site-specific genome modification of HSPCs using gene editing techniques such as CRISPR-Cas9 has shown great clinical promise. Preclinical studies have shown engineered HSPCs could also be used to cross-correct non-haematopoietic cells in neurodegenerative metabolic diseases. Here, we review the most recent advances in HSPC gene therapy and discuss emerging strategies for using HSPC gene therapy for a range of diseases.
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19
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Jang Y, Kim YS, Wielgosz MM, Ferrara F, Ma Z, Condori J, Palmer LE, Zhao X, Kang G, Rawlings DJ, Zhou S, Ryu BY. Optimizing lentiviral vector transduction of hematopoietic stem cells for gene therapy. Gene Ther 2020; 27:545-556. [PMID: 32341484 PMCID: PMC7606410 DOI: 10.1038/s41434-020-0150-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 04/01/2020] [Accepted: 04/03/2020] [Indexed: 12/13/2022]
Abstract
Autologous gene therapy using lentiviral vectors (LVs) holds promise for treating monogenetic blood diseases. However, clinical applications can be limited by suboptimal hematopoietic stem cell (HSC) transduction and insufficient quantities of available vector. We recently reported gene therapy for X-linked severe combined immunodeficiency using a protocol in which patient CD34+ cells were incubated with two successive transductions. Here we describe an improved protocol for LV delivery to CD34+ cells that simplifies product manipulation, reduces vector consumption, and achieves greater vector copy number (VCN) of repopulating HSCs in mouse xenotransplantation assays. Notable findings include the following: (1) the VCN of CD34+ cells measured shortly after transduction did not always correlate with the VCN of repopulating HSCs after xenotransplantation; (2) single-step transduction at higher CD34+ cell concentrations (2-4 × 106/ml) conserved LV without compromising HSC VCN; (3) poloxamer F108 (LentiBOOST) increased HSC VCN by two- to threefold (average from three donors); (4) although LentiBOOST + prostaglandin E2 combination further increased VCN in vitro, the VCN observed in vivo were similar to LentiBOOST alone; (5) cyclosporine H increased the HSC VCN to a similar or greater extent with LentiBOOST in vivo. Our findings delineate an improved protocol to increase the VCN of HSCs after CD34+ cell transduction with clinically relevant LVs.
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Affiliation(s)
- Yoonjeong Jang
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Yoon-Sang Kim
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Mustang Bio, Worcester, MA, 01605, USA
| | - Matthew M Wielgosz
- Vector Development, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Francesca Ferrara
- Vector Development, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Zhijun Ma
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Jose Condori
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Lance E Palmer
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Xiwen Zhao
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Guolian Kang
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - David J Rawlings
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, and Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, 98101, USA
| | - Sheng Zhou
- Experimental Cellular Therapeutics Lab, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Byoung Y Ryu
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA.
- Lyell Immunopharma, Seattle, WA, 98109, USA.
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20
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Abstract
Therapeutic viral gene delivery is an emerging technology which aims to correct genetic mutations by introducing new genetic information to cells either to correct a faulty gene or to initiate cell death in oncolytic treatments. In recent years, significant scientific progress has led to several clinical trials resulting in the approval of gene therapies for human treatment. However, successful therapies remain limited due to a number of challenges such as inefficient cell uptake, low transduction efficiency (TE), limited tropism, liver toxicity and immune response. To adress these issues and increase the number of available therapies, additives from a broad range of materials like polymers, peptides, lipids, nanoparticles, and small molecules have been applied so far. The scope of this review is to highlight these selected delivery systems from a materials perspective.
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Affiliation(s)
- Kübra Kaygisiz
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
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21
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Selmansberger M, Michna A, Braselmann H, Höfig I, Schorpp K, Weber P, Anastasov N, Zitzelsberger H, Hess J, Unger K. Transcriptome network of the papillary thyroid carcinoma radiation marker CLIP2. Radiat Oncol 2020; 15:182. [PMID: 32727620 PMCID: PMC7392692 DOI: 10.1186/s13014-020-01620-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 07/15/2020] [Indexed: 11/29/2022] Open
Abstract
Background We present a functional gene association network of the CLIP2 gene, generated by de-novo reconstruction from transcriptomic microarray data. CLIP2 was previously identified as a potential marker for radiation induced papillary thyroid carcinoma (PTC) of young patients in the aftermath of the Chernobyl reactor accident. Considering the rising thyroid cancer incidence rates in western societies, potentially related to medical radiation exposure, the functional characterization of CLIP2 is of relevance and contributes to the knowledge about radiation-induced thyroid malignancies. Methods We generated a transcriptomic mRNA expression data set from a CLIP2-perturbed thyroid cancer cell line (TPC-1) with induced CLIP2 mRNA overexpression and siRNA knockdown, respectively, followed by gene-association network reconstruction using the partial correlation-based approach GeneNet. Furthermore, we investigated different approaches for prioritizing differentially expressed genes for network reconstruction and compared the resulting networks with existing functional interaction networks from the Reactome, Biogrid and STRING databases. The derived CLIP2 interaction partners were validated on transcript and protein level. Results The best reconstructed network with regard to selection parameters contained a set of 20 genes in the 1st neighborhood of CLIP2 and suggests involvement of CLIP2 in the biological processes DNA repair/maintenance, chromosomal instability, promotion of proliferation and metastasis. Peptidylprolyl Isomerase Like 3 (PPIL3), previously identified as a potential direct interaction partner of CLIP2, was confirmed in this study by co-expression at the transcript and protein level. Conclusion In our study we present an optimized preselection approach for genes subjected to gene-association network reconstruction, which was applied to CLIP2 perturbation transcriptome data of a thyroid cancer cell culture model. Our data support the potential carcinogenic role of CLIP2 overexpression in radiation-induced PTC and further suggest potential interaction partners of the gene.
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Affiliation(s)
- Martin Selmansberger
- Research Unit Radiation Cytogenetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Agata Michna
- Research Unit Radiation Cytogenetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Herbert Braselmann
- Research Unit Radiation Cytogenetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Ines Höfig
- Institute of Radiation Biology, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Kenji Schorpp
- Institute for Molecular Toxicology and Pharmacology, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Peter Weber
- Research Unit Radiation Cytogenetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Natasa Anastasov
- Institute of Radiation Biology, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Horst Zitzelsberger
- Research Unit Radiation Cytogenetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany.,Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany.,Clinical Cooperation Group 'Personalized Radiotherapy in Head and Neck Cancer', Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Julia Hess
- Research Unit Radiation Cytogenetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany.,Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany.,Clinical Cooperation Group 'Personalized Radiotherapy in Head and Neck Cancer', Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Kristian Unger
- Research Unit Radiation Cytogenetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany. .,Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany. .,Clinical Cooperation Group 'Personalized Radiotherapy in Head and Neck Cancer', Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany.
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22
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Piras F, Kajaste-Rudnitski A. Antiviral immunity and nucleic acid sensing in haematopoietic stem cell gene engineering. Gene Ther 2020; 28:16-28. [PMID: 32661282 PMCID: PMC7357672 DOI: 10.1038/s41434-020-0175-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 07/06/2020] [Indexed: 02/06/2023]
Abstract
The low gene manipulation efficiency of human hematopoietic stem and progenitor cells (HSPC) remains a major hurdle for sustainable and broad clinical application of innovative therapies for a wide range of disorders. Given that all current and emerging gene transfer and editing technologies are bound to expose HSPC to exogenous nucleic acids and most often also to viral vectors, we reason that host antiviral factors and nucleic acid sensors play a pivotal role in the efficacy of HSPC genetic manipulation. Here, we review recent progress in our understanding of vector–host interactions and innate immunity in HSPC upon gene engineering and discuss how dissecting this crosstalk can guide the development of more stealth and efficient gene therapy approaches in the future.
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Affiliation(s)
- Francesco Piras
- San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Anna Kajaste-Rudnitski
- San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, Milan, Italy.
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23
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Russo E, Villa C. Poloxamer Hydrogels for Biomedical Applications. Pharmaceutics 2019; 11:E671. [PMID: 31835628 PMCID: PMC6955690 DOI: 10.3390/pharmaceutics11120671] [Citation(s) in RCA: 186] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/25/2019] [Accepted: 12/06/2019] [Indexed: 11/23/2022] Open
Abstract
This review article focuses on thermoresponsive hydrogels consisting of poloxamers which are of high interest for biomedical application especially in drug delivery for ophthalmic, injectable, transdermal, and vaginal administration. These hydrogels remain fluid at room temperature but become more viscous gel once they are exposed to body temperature. In this way, the gelling system remains at the topical level for a long time and the drug release is controlled and prolonged. Poloxamers are synthetic triblock copolymers of poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) (PEO-PPO-PEO), also commercially known as Pluronics®, Synperonics® or Lutrol®. The different poloxamers cover a range of liquids, pastes, and solids, with molecular weights and ethylene oxide-propylene oxide weight ratios varying from 1100 to 14,000 and 1:9 to 8:2, respectively. Concentrated aqueous solutions of poloxamers form thermoreversible gels. In recent years this type of gel has arouse interest for tissue engineering. Finally, the use of poloxamers as biosurfactants is evaluated since they are able to form micelles in an aqueous environment above a concentration threshold known as critical micelle concentration (CMC). This property is exploited for drug delivery and different therapeutic applications.
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Affiliation(s)
- Eleonora Russo
- Department of Pharmacy, University of Genoa, Viale Benedetto XV, 16132 Genova, Italy;
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24
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Krafft D, López Castellanos S, Lira RB, Dimova R, Ivanov I, Sundmacher K. Compartments for Synthetic Cells: Osmotically Assisted Separation of Oil from Double Emulsions in a Microfluidic Chip. Chembiochem 2019; 20:2604-2608. [PMID: 31090995 PMCID: PMC6852271 DOI: 10.1002/cbic.201900152] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/10/2019] [Indexed: 01/20/2023]
Abstract
Liposomes are used in synthetic biology as cell-like compartments and their microfluidic production through double emulsions allows for efficient encapsulation of various components. However, residual oil in the membrane remains a critical bottleneck for creating pristine phospholipid bilayers. It has been discovered that osmotically driven shrinking leads to detachment of the oil drop. Separation inside a microfluidic chip has been realized to automate the procedure, which allows for controlled continuous production of monodisperse liposomes.
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Affiliation(s)
- Dorothee Krafft
- Process Systems EngineeringMax Planck Institute for Dynamics of Complex Technical SystemsSandtorstrasse 139106MagdeburgGermany
| | - Sebastián López Castellanos
- Process Systems EngineeringMax Planck Institute for Dynamics of Complex Technical SystemsSandtorstrasse 139106MagdeburgGermany
| | - Rafael B. Lira
- Theory and Bio-SystemsMax Planck Institute of Colloids and InterfacesScience Park Golm14424PotsdamGermany
| | - Rumiana Dimova
- Theory and Bio-SystemsMax Planck Institute of Colloids and InterfacesScience Park Golm14424PotsdamGermany
| | - Ivan Ivanov
- Process Systems EngineeringMax Planck Institute for Dynamics of Complex Technical SystemsSandtorstrasse 139106MagdeburgGermany
| | - Kai Sundmacher
- Process Systems EngineeringMax Planck Institute for Dynamics of Complex Technical SystemsSandtorstrasse 139106MagdeburgGermany
- Otto-von-Guericke University MagdeburgUniversitätsplatz 239106MagdeburgGermany
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25
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Bauer DE, Pai SY. Getting Past HSC Security: Cyclosporine H Gives Lentiviruses an Entry Pass. Cell Stem Cell 2019; 23:775-776. [PMID: 30526877 DOI: 10.1016/j.stem.2018.11.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
In this issue of Cell Stem Cell, Petrillo et al. (2018) improve lentiviral transduction of hematopoietic stem cells (HSCs) by using cyclosporine H to relieve viral entry restriction by interferon-induced transmembrane protein 3 (IFITM3). This finding promises to enhance the efficiency of ex vivo therapeutic gene transfer and gene editing of HSCs.
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Affiliation(s)
- Daniel E Bauer
- Division of Hematology/Oncology, Boston Children's Hospital, Boston, MA, USA; Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Harvard Stem Cell Institute, Cambridge, MA, USA; Broad Institute, Massachusetts Institute of Technology, Cambridge, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Sung-Yun Pai
- Division of Hematology/Oncology, Boston Children's Hospital, Boston, MA, USA; Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Harvard Medical School, Boston, MA, USA.
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26
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Masiuk KE, Zhang R, Osborne K, Hollis RP, Campo-Fernandez B, Kohn DB. PGE2 and Poloxamer Synperonic F108 Enhance Transduction of Human HSPCs with a β-Globin Lentiviral Vector. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2019; 13:390-398. [PMID: 31024981 PMCID: PMC6477655 DOI: 10.1016/j.omtm.2019.03.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 03/26/2019] [Indexed: 12/29/2022]
Abstract
Lentiviral vector (LV)-based hematopoietic stem and progenitor cell (HSPC) gene therapy is becoming a promising alternative to allogeneic stem cell transplantation for curing genetic diseases. Clinical trials are currently underway to treat sickle cell disease using LVs expressing designed anti-sickling globin genes. However, because of the large size and complexity of the human β-globin gene, LV products often have low titers and transduction efficiency, requiring large amounts to treat a single patient. Furthermore, transduction of patient HSPCs often fails to achieve a sufficiently high vector copy number (VCN) and transgene expression for clinical benefit. We therefore investigated the combination of two compounds (PGE2 and poloxamer synperonic F108) to enhance transduction of HSPCs with a clinical-scale preparation of Lenti/G-AS3-FB. Here, we found that transduction enhancers increased the in vitro VCN of bulk myeloid cultures ∼10-fold while using a 10-fold lower LV dose. This was accompanied by an increased percentage of transduced colony-forming units. Importantly, analysis of immune-deficient NSG xenografts revealed that the combination of PGE2/synperonic F108 increased LV gene transfer in a primitive HSC population, with no effects on lineage distribution or engraftment. The use of transduction enhancers may greatly improve efficacy for LV-based HSPC gene therapy.
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Affiliation(s)
- Katelyn E Masiuk
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Ruixue Zhang
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Kyle Osborne
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Roger P Hollis
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Beatriz Campo-Fernandez
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Donald B Kohn
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA.,Department of Pediatrics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA.,Department of Molecular & Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
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27
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Hauber I, Beschorner N, Schrödel S, Chemnitz J, Kröger N, Hauber J, Thirion C. Improving Lentiviral Transduction of CD34 + Hematopoietic Stem and Progenitor Cells. Hum Gene Ther Methods 2019; 29:104-113. [PMID: 29631437 DOI: 10.1089/hgtb.2017.085] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The delivery of therapeutic genes for treatment of inherited or infectious diseases frequently requires lentiviral transduction of CD34+ hematopoietic stem and progenitor cells (HSC). Optimized transduction protocols with a therapeutic goal aim to maximize the number of transduction-positive cells while limiting the vector copy number that reach each individual cell. Importantly, the transduced HSC should maintain their "stem-like" properties. Here, we analyzed LentiBOOST™ reagent, a membrane-sealing poloxamer, with respect to enhancing lentiviral transduction of CD34+ peripheral blood stem cells. We demonstrate that inclusion of LentiBOOST™ in a standard HSC transduction protocol yields high transduction efficiencies while preserving the ability of the transduced HSC to differentiate into various hematopoietic lineages. Thus, LentiBOOST™ reagent can significantly improve lentiviral CD34+ HSC transduction protocols with the potential to improve production of gene-modified cell products.
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Affiliation(s)
- Ilona Hauber
- 1 Heinrich Pette Institute - Leibniz Institute for Experimental Virology , Hamburg, Germany
| | - Niklas Beschorner
- 1 Heinrich Pette Institute - Leibniz Institute for Experimental Virology , Hamburg, Germany.,2 German Center for Infection Research (DZIF) , Partner Site Hamburg, Germany
| | | | - Jan Chemnitz
- 1 Heinrich Pette Institute - Leibniz Institute for Experimental Virology , Hamburg, Germany
| | - Nicolaus Kröger
- 4 Department of Stem Cell Transplantation, University Medical Center Hamburg-Eppendorf , Hamburg, Germany
| | - Joachim Hauber
- 1 Heinrich Pette Institute - Leibniz Institute for Experimental Virology , Hamburg, Germany.,2 German Center for Infection Research (DZIF) , Partner Site Hamburg, Germany
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28
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Abstract
Polymeric matrices inherently protect viral vectors from pre-existing immune conditions, limit dissemination to off-target sites, and can sustain vector release. Advancing methodologies in development of particulate based vehicles have led to improved encapsulation of viral vectors. Polymeric delivery systems have contributed to increasing cellular transduction, responsive release mechanisms, cellular infiltration, and cellular signaling. Synthetic polymers are easily customizable, and are capable of balancing matrix retention with cellular infiltration. Natural polymers contain inherent biorecognizable motifs adding therapeutic efficacy to the incorporated viral vector. Recombinant polymers use highly conserved motifs to carefully engineer matrices, allowing for precise design including elements of vector retention and responsive release mechanisms. Composite polymer systems provide opportunities to create matrices with unique properties. Carefully designed matrices can control spatiotemporal release patterns that synergize with approaches in regenerative medicine and antitumor therapies.
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Affiliation(s)
- Douglas Steinhauff
- Utah Center for Nanomedicine , Nano Institute of Utah , 36 South Wasatch Drive , Salt Lake City , Utah 84112 , United States
| | - Hamidreza Ghandehari
- Utah Center for Nanomedicine , Nano Institute of Utah , 36 South Wasatch Drive , Salt Lake City , Utah 84112 , United States
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29
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High-Efficiency Lentiviral Transduction of Human CD34 + Cells in High-Density Culture with Poloxamer and Prostaglandin E2. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2019; 13:187-196. [PMID: 30788387 PMCID: PMC6370599 DOI: 10.1016/j.omtm.2019.01.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 01/16/2019] [Indexed: 12/14/2022]
Abstract
Hematopoietic stem cell (HSC) gene therapy is curative for various hereditary diseases; however, high-efficiency transduction in HSCs remains crucial to improve the prospects for hemoglobinopathies. We previously optimized lentiviral transduction in human CD34+ cells with serum-free medium containing minimal cytokines, allowing efficient transduction (∼50%) and robust xenograft engraftment. In this study, we further improved lentiviral transduction in human CD34+ cells. High-density culture conditions (4e6/mL) resulted in ∼5-fold more efficient transduction in CD34+ cells (p < 0.01) compared with standard cell density (1e5/mL). After co-culturing vector-exposed CD34+ cells with non-transduced CD34+ cells, high-density culture conditions enhanced lentiviral gene marking in the non-transduced population (p < 0.01) compared with low-density conditions, suggesting that increasing cell-to-cell contact allows more efficient transduction. Two adjuvants, poloxamer 407 (100 μg/mL) and prostaglandin E2 (10 μM), were added to high-density CD34+ cells, resulting in ∼4-fold more efficient transduction (p < 0.01) without significant toxicity compared with no adjuvant control. In summary, we developed a highly efficient lentiviral transduction method in high-density CD34+ cell culture with poloxamer 407 and prostaglandin E2, allowing overall ∼10-fold improvement in transduction efficiency and consistently achieving more than 90% transduction and an average vector copy number of ∼10. Our optimized transduction method should improve gene therapy approaches using lentiviral vectors targeting HSCs.
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30
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Delville M, Soheili T, Bellier F, Durand A, Denis A, Lagresle-Peyrou C, Cavazzana M, Andre-Schmutz I, Six E. A Nontoxic Transduction Enhancer Enables Highly Efficient Lentiviral Transduction of Primary Murine T Cells and Hematopoietic Stem Cells. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2018; 10:341-347. [PMID: 30191160 PMCID: PMC6125771 DOI: 10.1016/j.omtm.2018.08.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 08/01/2018] [Indexed: 12/16/2022]
Abstract
Lentiviral vectors have emerged as an efficient, safe therapeutic tool for gene therapy based on hematopoietic stem cells (HSCs) or T cells. However, the monitoring of transduced cells in preclinical models remains challenging because of the inefficient transduction of murine primary T cells with lentiviral vectors, in contrast to gammaretroviral vectors. The use of this later in preclinical proof of concept is not considered as relevant when a lentiviral vector will be used in a clinical trial. Hence, there is an urgent need to develop an efficient transduction protocol for murine cells with lentiviral vectors. Here, we describe an optimized protocol in which a nontoxic transduction enhancer (Lentiboost) enables the efficient transduction of primary murine T cells with lentiviral vectors. The optimized protocol combines low toxicity and high transduction efficiency. We achieved a high-level transduction of murine CD4+ and CD8+ T cells with a VSV-G-pseudotyped lentiviral vector with no changes in the phenotypes of transduced T cells, which were stable and long-lived in culture. This enhancer also increased the transduction of murine HSCs. Hence, use of this new transduction enhancer overcomes the limitations of lentiviral vectors in preclinical experiments and should facilitate the translation of strategies based on lentiviral vectors from the bench to the clinic.
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Affiliation(s)
- Marianne Delville
- Laboratory of Human Lymphohematopoiesis, INSERM UMR 1163, Imagine Institute, Paris, France.,Apheresis and Biotherapy Department, Necker Hospital, APHP, Paris, France.,University of Paris Descartes-Sorbonne Paris Cité, Paris, France.,Biotherapy Clinical Investigation Center, Groupe Hospitalier Universitaire Ouest, Assistance Publique-Hôpitaux de Paris, INSERM CIC 1416, Paris, France
| | - Tayebeh Soheili
- Laboratory of Human Lymphohematopoiesis, INSERM UMR 1163, Imagine Institute, Paris, France.,Apheresis and Biotherapy Department, Necker Hospital, APHP, Paris, France.,University of Paris Descartes-Sorbonne Paris Cité, Paris, France.,Biotherapy Clinical Investigation Center, Groupe Hospitalier Universitaire Ouest, Assistance Publique-Hôpitaux de Paris, INSERM CIC 1416, Paris, France
| | - Florence Bellier
- Laboratory of Human Lymphohematopoiesis, INSERM UMR 1163, Imagine Institute, Paris, France.,University of Paris Descartes-Sorbonne Paris Cité, Paris, France.,Biotherapy Clinical Investigation Center, Groupe Hospitalier Universitaire Ouest, Assistance Publique-Hôpitaux de Paris, INSERM CIC 1416, Paris, France
| | - Amandine Durand
- Laboratory of Human Lymphohematopoiesis, INSERM UMR 1163, Imagine Institute, Paris, France.,University of Paris Descartes-Sorbonne Paris Cité, Paris, France.,Biotherapy Clinical Investigation Center, Groupe Hospitalier Universitaire Ouest, Assistance Publique-Hôpitaux de Paris, INSERM CIC 1416, Paris, France
| | - Adeline Denis
- Laboratory of Human Lymphohematopoiesis, INSERM UMR 1163, Imagine Institute, Paris, France.,University of Paris Descartes-Sorbonne Paris Cité, Paris, France.,Biotherapy Clinical Investigation Center, Groupe Hospitalier Universitaire Ouest, Assistance Publique-Hôpitaux de Paris, INSERM CIC 1416, Paris, France
| | - Chantal Lagresle-Peyrou
- Laboratory of Human Lymphohematopoiesis, INSERM UMR 1163, Imagine Institute, Paris, France.,University of Paris Descartes-Sorbonne Paris Cité, Paris, France.,Biotherapy Clinical Investigation Center, Groupe Hospitalier Universitaire Ouest, Assistance Publique-Hôpitaux de Paris, INSERM CIC 1416, Paris, France
| | - Marina Cavazzana
- Laboratory of Human Lymphohematopoiesis, INSERM UMR 1163, Imagine Institute, Paris, France.,Apheresis and Biotherapy Department, Necker Hospital, APHP, Paris, France.,University of Paris Descartes-Sorbonne Paris Cité, Paris, France.,Biotherapy Clinical Investigation Center, Groupe Hospitalier Universitaire Ouest, Assistance Publique-Hôpitaux de Paris, INSERM CIC 1416, Paris, France
| | - Isabelle Andre-Schmutz
- Laboratory of Human Lymphohematopoiesis, INSERM UMR 1163, Imagine Institute, Paris, France.,University of Paris Descartes-Sorbonne Paris Cité, Paris, France.,Biotherapy Clinical Investigation Center, Groupe Hospitalier Universitaire Ouest, Assistance Publique-Hôpitaux de Paris, INSERM CIC 1416, Paris, France
| | - Emmanuelle Six
- Laboratory of Human Lymphohematopoiesis, INSERM UMR 1163, Imagine Institute, Paris, France.,University of Paris Descartes-Sorbonne Paris Cité, Paris, France.,Biotherapy Clinical Investigation Center, Groupe Hospitalier Universitaire Ouest, Assistance Publique-Hôpitaux de Paris, INSERM CIC 1416, Paris, France
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31
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Rey-Rico A, Cucchiarini M. PEO-PPO-PEO Tri-Block Copolymers for Gene Delivery Applications in Human Regenerative Medicine-An Overview. Int J Mol Sci 2018. [PMID: 29518011 PMCID: PMC5877636 DOI: 10.3390/ijms19030775] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Lineal (poloxamers or Pluronic®) or X-shaped (poloxamines or Tetronic®) amphiphilic tri-block copolymers of poly(ethylene oxide) and poly(propylene oxide) (PEO-PPO-PEO) have been broadly explored for controlled drug delivery in different regenerative medicine approaches. The ability of these copolymers to self-assemble as micelles and to undergo sol-to-gel transitions upon heating has endowed the denomination of “smart” or “intelligent” systems. The use of PEO-PPO-PEO copolymers as gene delivery systems is a powerful emerging strategy to improve the performance of classical gene transfer vectors. This review summarizes the state of art of the application of PEO-PPO-PEO copolymers in both nonviral and viral gene transfer approaches and their potential as gene delivery systems in different regenerative medicine approaches.
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Affiliation(s)
- Ana Rey-Rico
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, D-66421 Homburg/Saar, Germany.
- Centro de Investigacións Científicas Avanzadas (CICA), Universidade da Coruña, Campus de A Coruña, 15071 A Coruña, Spain.
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, D-66421 Homburg/Saar, Germany.
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Ehrnström B, Beckwith KS, Yurchenko M, Moen SH, Kojen JF, Lentini G, Teti G, Damås JK, Espevik T, Stenvik J. Toll-Like Receptor 8 Is a Major Sensor of Group B Streptococcus But Not Escherichia coli in Human Primary Monocytes and Macrophages. Front Immunol 2017; 8:1243. [PMID: 29042860 PMCID: PMC5632357 DOI: 10.3389/fimmu.2017.01243] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 09/19/2017] [Indexed: 02/05/2023] Open
Abstract
TLR8 is the major endosomal sensor of degraded RNA in human monocytes and macrophages. It has been implicated in the sensing of viruses and more recently also bacteria. We previously identified a TLR8-IFN regulatory factor 5 (IRF5) signaling pathway that mediates IFNβ and interleukin-12 (IL-12) induction by Staphylococcus aureus and is antagonized by TLR2. The relative importance of TLR8 for the sensing of various bacterial species is however still unclear. We here compared the role of TLR8 and IRF5 for the sensing of Group B Streptococcus (GBS), S. aureus, and Escherichia coli in human primary monocytes and monocyte-derived macrophages (MDM). GBS induced stronger IFNβ and TNF production as well as IRF5 nuclear translocation compared to S. aureus grown to the stationary phase, while S. aureus in exponential growth appeared similarly potent to GBS. Cytokine induction in primary human monocytes by GBS was not dependent on hemolysins, and induction of IFNβ and IL-12 as well as IRF5 activation were reduced with TLR2 ligand costimulation. Heat inactivation of GBS reduced IRF5 and NF-kB translocation, while only the viable E. coli activated IRF5. The attenuated stimulation correlated with loss of bacterial RNA integrity. The E. coli-induced IRF5 translocation was not inhibited by TLR2 costimulation, suggesting that IRF5 was activated via a TLR8-independent mechanism. Gene silencing of MDM using siRNA revealed that GBS-induced IFNβ, IL-12-p35, and TNF production was dependent on TLR8 and IRF5. In contrast, cytokine induction by E. coli was TLR8 independent but still partly dependent on IRF5. We conclude that TLR8-IRF5 signaling is more important for the sensing of GBS than for stationary grown S. aureus in human primary monocytes and MDM, likely due to reduced resistance of GBS to phagosomal degradation and to a lower production of TLR2 activating lipoproteins. TLR8 does not sense viable E. coli, while IRF5 still contributes to E. coli-induced cytokine production, possibly via a cytosolic nucleic acid sensing mechanism.
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Affiliation(s)
- Birgitta Ehrnström
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Infectious Diseases, Clinic of Medicine, St. Olavs Hospital HF, Trondheim University Hospital, Trondheim, Norway
| | - Kai Sandvold Beckwith
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Mariia Yurchenko
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Siv Helen Moen
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - June Frengen Kojen
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Germana Lentini
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Giuseppe Teti
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Jan Kristian Damås
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Infectious Diseases, Clinic of Medicine, St. Olavs Hospital HF, Trondheim University Hospital, Trondheim, Norway
| | - Terje Espevik
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Jørgen Stenvik
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Infectious Diseases, Clinic of Medicine, St. Olavs Hospital HF, Trondheim University Hospital, Trondheim, Norway
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Mutschelknaus L, Azimzadeh O, Heider T, Winkler K, Vetter M, Kell R, Tapio S, Merl-Pham J, Huber SM, Edalat L, Radulović V, Anastasov N, Atkinson MJ, Moertl S. Radiation alters the cargo of exosomes released from squamous head and neck cancer cells to promote migration of recipient cells. Sci Rep 2017; 7:12423. [PMID: 28963552 PMCID: PMC5622080 DOI: 10.1038/s41598-017-12403-6] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 09/07/2017] [Indexed: 12/22/2022] Open
Abstract
Radiation is a highly efficient therapy in squamous head and neck carcinoma (HNSCC) treatment. However, local recurrence and metastasis are common complications. Recent evidence shows that cancer-cell-derived exosomes modify tumour cell movement and metastasis. In this study, we link radiation-induced changes of exosomes to their ability to promote migration of recipient HNSCC cells. We demonstrate that exosomes isolated from irradiated donor cells boost the motility of the HNSCC cells BHY and FaDu. Molecular data identified enhanced AKT-signalling, manifested through increased phospho-mTOR, phospho-rpS6 and MMP2/9 protease activity, as underlying mechanism. AKT-inhibition blocked the pro-migratory action, suggesting AKT-signalling as key player in exosome-mediated migration. Proteomic analysis of exosomes isolated from irradiated and non-irradiated BHY donor cells identified 39 up- and 36 downregulated proteins. In line with the observed pro-migratory effect of exosomes isolated from irradiated cells protein function analysis assigned the deregulated exosomal proteins to cell motility and AKT-signalling. Together, our findings demonstrate that exosomes derived from irradiated HNSCC cells confer a migratory phenotype to recipient cancer cells. This is possibly due to radiation-regulated exosomal proteins that increase AKT-signalling. We conclude that exosomes may act as driver of HNSCC progression during radiotherapy and are therefore attractive targets to improve radiation therapy strategies.
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Affiliation(s)
- Lisa Mutschelknaus
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Biology, Neuherberg, Germany
| | - Omid Azimzadeh
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Biology, Neuherberg, Germany
| | - Theresa Heider
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Biology, Neuherberg, Germany
| | - Klaudia Winkler
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Biology, Neuherberg, Germany
| | - Marcus Vetter
- Independent Scientist, Hofheimerstraße 6, Munich, Germany
| | - Rosemarie Kell
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Biology, Neuherberg, Germany
| | - Soile Tapio
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Biology, Neuherberg, Germany
| | - Juliane Merl-Pham
- Helmholtz Zentrum München, German Research Center for Environmental Health, Research Unit Protein Science, München, Germany
| | - Stephan M Huber
- Department of Radiation Oncology, University of Tübingen, Tübingen, Germany
| | - Lena Edalat
- Department of Radiation Oncology, University of Tübingen, Tübingen, Germany
| | - Vanja Radulović
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Biology, Neuherberg, Germany
| | - Nataša Anastasov
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Biology, Neuherberg, Germany
| | - Michael J Atkinson
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Biology, Neuherberg, Germany.,Chair of Radiation Biology, Technical University of Munich, Munich, Germany
| | - Simone Moertl
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Biology, Neuherberg, Germany.
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Rey-Rico A, Babicz H, Madry H, Concheiro A, Alvarez-Lorenzo C, Cucchiarini M. Supramolecular polypseudorotaxane gels for controlled delivery of rAAV vectors in human mesenchymal stem cells for regenerative medicine. Int J Pharm 2017; 531:492-503. [PMID: 28552768 DOI: 10.1016/j.ijpharm.2017.05.050] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 05/17/2017] [Accepted: 05/22/2017] [Indexed: 12/12/2022]
Abstract
The aim of this work was to investigate, for the first time, the possibility of using supramolecular polypseudorotaxane gels as scaffolds that can durably deliver rAAV vectors for applications in cartilage regeneration. Dispersions of Pluronic® F68 (PF68) or Tetronic® 908 (T908) containing either hyaluronic acid (HA) or chondroitin sulfate (CS) were prepared in PBS. Then, alpha-cyclodextrin (αCD) was added to some dispersions to form polypseudorotaxane gels. Polysaccharides and αCD reinforced the viscoelasticity of the gels, which could withstand autoclaving without changes. In vitro release of rAAV vectors and subsequent transduction of human mesenchymal stem cells (hMSCs) by rAAV vectors from the release medium and from gels in direct contact with the cells were investigated. Compared with free vectors, the gels provided higher levels of transgene expression. CS (or HA)/PF68/αCD gels rapidly released rAAV vectors while CS (or HA)/T908/αCD gels provided sustained release probably due to different interactions with the viral vectors. Incorporation of αCD into CS (or HA)/PF68 gels resulted on higher rAAV concentrations and sustained levels of transgene expression over time. HA increased the bioactivity and cytocompatibility of the gels, especially those based on T908. Overall, combining rAAV gene transfer with polypseudorotaxane gels may provide new, promising tools for human tissue engineering and regenerative medicine strategies.
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Affiliation(s)
- Ana Rey-Rico
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Germany.
| | - Heiko Babicz
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Germany
| | - Henning Madry
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Germany; Department of Orthopaedics and Orthopaedic Surgery, Saarland University Medical Center, Homburg, Germany
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+DPharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15872 Santiago de Compostela, Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+DPharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15872 Santiago de Compostela, Spain.
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Germany
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35
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The Rb1 tumour suppressor gene modifies telomeric chromatin architecture by regulating TERRA expression. Sci Rep 2017; 7:42056. [PMID: 28169375 PMCID: PMC5294645 DOI: 10.1038/srep42056] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 01/05/2017] [Indexed: 12/21/2022] Open
Abstract
The tumour suppressor gene (Rb1) is necessary for the maintenance of telomere integrity in osteoblastic cells. We now show that the compaction of telomeric chromatin and the appropriate histone modifications of telomeric DNA are both dependent upon Rb1-mediated transcription of the telomere-derived long non-coding RNA TERRA. Expression of TERRA was reduced in Rb1 haploinsufficient cells, and further decreased by shRNA-mediated reduction of residual Rb1 expression. Restoration of Rb1 levels through lentiviral transduction was sufficient to reestablish both transcription of TERRA and condensation of telomeric chromatin. The human chromosome 15q TERRA promoter contains predicted retinoblastoma control elements, and was able to confer Rb1-dependent transcription upon a promoterless reporter gene. Chromatin immunoprecipitation revealed preferential binding of phosphorylated over non-phosphorylated Rb1 at the TERRA promoter. As Rb1-deficient cells show increased genomic instability we suggest that this novel non-canonical action of Rb1 may contribute to the tumour suppressive actions of Rb1.
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36
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Radulovic V, Heider T, Richter S, Moertl S, Atkinson MJ, Anastasov N. Differential response of normal and transformed mammary epithelial cells to combined treatment of anti-miR-21 and radiation. Int J Radiat Biol 2017; 93:361-372. [DOI: 10.1080/09553002.2016.1266057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Vanja Radulovic
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Theresa Heider
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Sabine Richter
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Simone Moertl
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Michael J. Atkinson
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
- Chair of Radiation Biology, Technical University of Munich, Munich, Germany
| | - Nataša Anastasov
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
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37
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Leinhäuser I, Richter A, Lee M, Höfig I, Anastasov N, Fend F, Ercolino T, Mannelli M, Gimenez-Roqueplo AP, Robledo M, de Krijger R, Beuschlein F, Atkinson MJ, Pellegata NS. Oncogenic features of the bone morphogenic protein 7 (BMP7) in pheochromocytoma. Oncotarget 2016; 6:39111-26. [PMID: 26337467 PMCID: PMC4770760 DOI: 10.18632/oncotarget.4912] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 08/07/2015] [Indexed: 12/29/2022] Open
Abstract
BMP7 is a growth factor playing pro- or anti-oncogenic roles in cancer in a cell type-dependent manner. We previously reported that the BMP7 gene is overexpressed in pheochromocytomas (PCCs) developing in MENX-affected rats and human patients. Here, analyzing a large cohort of PCC patients, we found that 72% of cases showed elevated levels of the BMP7 protein. To elucidate the role of BMP7 in PCC, we modulated its levels in PCC cell lines (overexpression in PC12, knockdown in MPC and MTT cells) and conducted functional assays. Active BMP signaling promoted cell proliferation, migration, and invasion, and sustained survival of MENX rat primary PCC cells. In PCC, BMP7 signals through the PI3K/AKT/mTOR pathway and causes integrin β1 up-regulation. Silencing integrin β1 in PC12 cells suppressed BMP7-mediated oncogenic features. Treatment of MTT cells with DMH1, a novel BMP antagonist, suppressed proliferation and migration. To verify the clinical applicability of our findings, we evaluated a dual PI3K/mTOR inhibitor (NVP-BEZ235) in MENX-affected rats in vivo. PCCs treated with NVP-BEZ235 had decreased proliferation and integrin β1 levels, and higher apoptosis. Altogether, BMP7 activates pro-oncogenic pathways in PCC. Downstream effectors of BMP7-mediated signaling may represent novel targets for treating progressive/inoperable PCC, still orphan of effective therapy.
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Affiliation(s)
- Ines Leinhäuser
- Institute of Pathology, Helmholtz Zentrum München, Neuherberg, Germany.,Institute of Radiation Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Andrea Richter
- Institute of Pathology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Misu Lee
- Institute of Pathology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Ines Höfig
- Institute of Radiation Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Nataša Anastasov
- Institute of Radiation Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Falko Fend
- Institute of Pathology and Neuropathology Comprehensive Cancer Center Tübingen and University of Tübingen, Tübingen, Germany
| | - Tonino Ercolino
- Azienda Ospedaliero-Universitaria di Careggi, Endocrine Unit, Florence, Italy
| | - Massimo Mannelli
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Anne-Paule Gimenez-Roqueplo
- INSERM, UMR U970, Paris Cardiovascular Research Center-PARCC, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Faculté de Médecine, Paris, France.,Assistance Publique Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Department of Genetics, Paris, France
| | - Mercedes Robledo
- Hereditary Endocrine Cancer Group, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Ronald de Krijger
- Department of Pathology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Felix Beuschlein
- Endocrine Research Unit, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, München, Germany
| | - Michael J Atkinson
- Institute of Radiation Biology, Helmholtz Zentrum München, Neuherberg, Germany
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Vedvyas Y, Shevlin E, Zaman M, Min IM, Amor-Coarasa A, Park S, Park S, Kwon KW, Smith T, Luo Y, Kim D, Kim Y, Law B, Ting R, Babich J, Jin MM. Longitudinal PET imaging demonstrates biphasic CAR T cell responses in survivors. JCI Insight 2016; 1:e90064. [PMID: 27882353 DOI: 10.1172/jci.insight.90064] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Clinical monitoring of adoptive T cell transfer (ACT) utilizes serial blood analyses to discern T cell activity. While useful, these data are 1-dimensional and lack spatiotemporal information related to treatment efficacy or toxicity. We utilized a human genetic reporter, somatostatin receptor 2 (SSTR2), and PET, to quantitatively and longitudinally visualize whole-body T cell distribution and antitumor dynamics using a clinically approved radiotracer. Initial evaluations determined that SSTR2-expressing T cells were detectable at low densities with high sensitivity and specificity. SSTR2-based PET was applied to ACT of chimeric antigen receptor (CAR) T cells targeting intercellular adhesion molecule-1, which is overexpressed in anaplastic thyroid tumors. Timely CAR T cell infusions resulted in survival of tumor-bearing mice, while later infusions led to uniform death. Real-time PET imaging revealed biphasic T cell expansion and contraction at tumor sites among survivors, with peak tumor burden preceding peak T cell burden by several days. In contrast, nonsurvivors displayed unrelenting increases in tumor and T cell burden, indicating that tumor growth was outpacing T cell killing. Thus, longitudinal PET imaging of SSTR2-positive ACT dynamics enables prognostic, spatiotemporal monitoring with unprecedented clarity and detail to facilitate comprehensive therapy evaluation with potential for clinical translation.
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Affiliation(s)
- Yogindra Vedvyas
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York, USA.,Department of Biomedical Engineering, Cornell University, Ithaca, New York, USA
| | - Enda Shevlin
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York, USA
| | - Marjan Zaman
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York, USA
| | - Irene M Min
- Department of Surgery, Weill Cornell Medicine, New York, New York, USA
| | - Alejandro Amor-Coarasa
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York, USA
| | - Spencer Park
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York, USA.,Department of Biomedical Engineering, Cornell University, Ithaca, New York, USA
| | - Susan Park
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York, USA
| | - Keon-Woo Kwon
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York, USA
| | - Turner Smith
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York, USA
| | - Yonghua Luo
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York, USA
| | - Dohyun Kim
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York, USA
| | - Young Kim
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York, USA.,Department of Pathology, Chonnam National University Medical School, Gwangju, South Korea
| | - Benedict Law
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York, USA
| | - Richard Ting
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York, USA
| | - John Babich
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York, USA
| | - Moonsoo M Jin
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York, USA.,Department of Biomedical Engineering, Cornell University, Ithaca, New York, USA.,Department of Surgery, Weill Cornell Medicine, New York, New York, USA
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Falkenberg N, Höfig I, Rosemann M, Szumielewski J, Richter S, Schorpp K, Hadian K, Aubele M, Atkinson MJ, Anastasov N. Three-dimensional microtissues essentially contribute to preclinical validations of therapeutic targets in breast cancer. Cancer Med 2016; 5:703-10. [PMID: 26763588 PMCID: PMC4831289 DOI: 10.1002/cam4.630] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 11/23/2015] [Accepted: 12/07/2015] [Indexed: 12/20/2022] Open
Abstract
A 3D microtissues using T47D and JIMT‐1 cells were generated to analyze tissue‐like response of breast cancer cells after combined human epidermal growth factor receptor 2 (HER2)‐targeted treatment and radiation. Following lentiviral knockdown of HER2, we compared growth rate alterations using 2D monolayers, 3D microtissues, and mouse xenografts. Additionally, to model combined therapeutic strategies, we treated HER2‐depleted T47D cells and 3D microtissues using trastuzumab (anti‐HER2 antibody) in combination with irradiation. Comparison of HER2 knockdown with corresponding controls revealed growth impairment due to HER2 knockdown in T47D 2D monolayers, 3D microtissues, and xenografts (after 2, 12, and ≥40 days, respectively). In contrast, HER2 knockdown was less effective in inhibiting growth of trastuzumab‐resistant JIMT‐1 cells in vitro and in vivo. Combined administration of trastuzumab and radiation treatment was also analyzed using T47D 3D microtissues. Administration of both, radiation (5 Gy) and trastuzumab, significantly enhanced the growth inhibiting effect in 3D microtissues. To improve the predictive power of potential drugs—as single agents or in combination—here, we show that regarding tumor growth analyses, 3D microtissues are highly comparable to outcomes derived from xenografts. Considering increased limitations for animal experiments on the one hand and strong need of novel drugs on the other hand, it is indispensable to include highly reproducible 3D microtissue platform in preclinical analyses to validate more accurately the capacity of future drug‐combined radiotherapy.
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Affiliation(s)
- Natalie Falkenberg
- Institute of Pathology, Helmholtz Center Munich, German Research Center for Environmental Health, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany
| | - Ines Höfig
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany
| | - Michael Rosemann
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany
| | - Justine Szumielewski
- Institute of Pathology, Helmholtz Center Munich, German Research Center for Environmental Health, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany
| | - Sabine Richter
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany
| | - Kenji Schorpp
- Assay Development and Screening Platform, Institute of Molecular Toxicology and Pharmacology, Helmholtz Center Munich, German Research Center for Environmental Health, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany
| | - Kamyar Hadian
- Assay Development and Screening Platform, Institute of Molecular Toxicology and Pharmacology, Helmholtz Center Munich, German Research Center for Environmental Health, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany
| | - Michaela Aubele
- Institute of Pathology, Helmholtz Center Munich, German Research Center for Environmental Health, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany
| | - Michael J Atkinson
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany.,Radiation Biology, Technical University of Munich, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Nataša Anastasov
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany
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40
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Anastasov N, Höfig I, Mall S, Krackhardt AM, Thirion C. Optimized Lentiviral Transduction Protocols by Use of a Poloxamer Enhancer, Spinoculation, and scFv-Antibody Fusions to VSV-G. Methods Mol Biol 2016; 1448:49-61. [PMID: 27317172 DOI: 10.1007/978-1-4939-3753-0_4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Lentiviral vectors (LV) are widely used to successfully transduce cells for research and clinical applications. This optimized LV infection protocol includes a nontoxic poloxamer-based adjuvant combined with antibody-retargeted lentiviral particles. The novel poloxamer P338 demonstrates superior characteristics for enhancing lentiviral transduction over the best-in-class polybrene-assisted transduction. Poloxamer P338 exhibited dual benefits of low toxicity and high efficiency of lentiviral gene delivery into a range of different primary cell cultures. One of the major advantages of P338 is its availability in pharma grade and applicability as cell culture medium additive in clinical protocols. Lentiviral vectors pseudotyped with the vesicular stomatitis virus glycoprotein (VSV-G) can be produced to high titers and mediate high transduction efficiencies in vitro. For clinical applications the need for optimized transduction protocols, especially for transduction of primary T and stem cells, is high. The successful use of retronectin, the second lentivirus enhancer available as GMP material, requires the application of specific coating protocols not applicable in all processes, and results in the need of a relatively high multiplicity of infection (MOI) to achieve effective transduction efficiencies for hematopoietic cells (e.g., CD34+ hematopoietic stem cells). Cell specificity of lentiviral vectors was successfully increased by displaying different ratios of scFv-fused VSV-G glycoproteins on the viral envelope. The system has been validated with human CD30+ lymphoma cells, resulting in preferential gene delivery to CD30+ cells, which was increased fourfold in mixed cell cultures, by presenting scFv antibody fragments binding to respective surface markers. A combination of spinoculation and poloxamer-based chemical adjuvant increases the transduction of primary T-cells by greater than twofold. The combination of poloxamer-based and scFv-retargeted LVs increased transduction of CD30+ lymphoma cells more than tenfold, and has the potential to improve clinical protocols.
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Affiliation(s)
- Nataša Anastasov
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health, 85764, Neuherberg, Germany.
| | - Ines Höfig
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Sabine Mall
- Medizinische Klinik III, Klinikum Rechts der Isar, Technical University Munich, Munich, Germany
| | - Angela M Krackhardt
- Medizinische Klinik III, Klinikum Rechts der Isar, Technical University Munich, Munich, Germany
| | - Christian Thirion
- SIRION Biotech GmbH, Am Klopferspitz 19, 82152, Martinsried, Germany.
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Miao T, Fenn SL, Charron PN, Oldinski RA. Self-Healing and Thermoresponsive Dual-Cross-Linked Alginate Hydrogels Based on Supramolecular Inclusion Complexes. Biomacromolecules 2015; 16:3740-50. [PMID: 26509214 PMCID: PMC4679680 DOI: 10.1021/acs.biomac.5b00940] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
β-Cyclodextrin (β-CD), with a lipophilic inner cavity and hydrophilic outer surface, interacts with a large variety of nonpolar guest molecules to form noncovalent inclusion complexes. Conjugation of β-CD onto biomacromolecules can form physically cross-linked hydrogel networks upon mixing with a guest molecule. Herein, the development and characterization of self-healing, thermoresponsive hydrogels, based on host-guest inclusion complexes between alginate-graft-β-CD and Pluronic F108 (poly(ethylene glycol)-b-poly(propylene glycol)-b-poly(ethylene glycol)), are described. The mechanics, flow characteristics, and thermal response were contingent on the polymer concentration and the host-guest molar ratio. Transient and reversible physical cross-linking between host and guest polymers governed self-assembly, allowing flow to occur under shear stress and facilitating complete recovery of the material's properties within a few seconds of unloading. The mechanical properties of the dual-cross-linked, multi-stimuli-responsive hydrogels were tuned as high as 30 kPa at body temperature and are advantageous for biomedical applications such as drug delivery and cell transplantation.
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Affiliation(s)
- Tianxin Miao
- Bioengineering Program, College of Engineering and Mathematical Science, College of Medicine, University of Vermont, Burlington, VT 05405, USA
| | - Spencer L. Fenn
- Bioengineering Program, College of Engineering and Mathematical Science, College of Medicine, University of Vermont, Burlington, VT 05405, USA
| | - Patrick N. Charron
- Mechanical Engineering Program, College of Engineering and Mathematical Science, University of Vermont, Burlington, VT 05405, USA
| | - Rachael A. Oldinski
- Bioengineering Program, College of Engineering and Mathematical Science, College of Medicine, University of Vermont, Burlington, VT 05405, USA
- Mechanical Engineering Program, College of Engineering and Mathematical Science, University of Vermont, Burlington, VT 05405, USA
- Materials Science Program, College of Arts and Sciences, Department of Orthopaedics and Rehabilitation, College of Medicine, University of Vermont, Burlington, VT 05405, USA
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Majdoul S, Seye AK, Kichler A, Holic N, Galy A, Bechinger B, Fenard D. Molecular Determinants of Vectofusin-1 and Its Derivatives for the Enhancement of Lentivirally Mediated Gene Transfer into Hematopoietic Stem/Progenitor Cells. J Biol Chem 2015; 291:2161-9. [PMID: 26668323 DOI: 10.1074/jbc.m115.675033] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Indexed: 12/20/2022] Open
Abstract
Gene delivery into hCD34+ hematopoietic stem/progenitor cells (HSPCs) using human immunodeficiency virus, type 1-derived lentiviral vectors (LVs) has several promising therapeutic applications. Numerous clinical trials are currently underway. However, the efficiency, safety, and cost of LV gene therapy could be ameliorated by enhancing target cell transduction levels and reducing the amount of LV used on the cells. Several transduction enhancers already exist, such as fibronectin fragments or cationic compounds. Recently, we discovered Vectofusin-1, a new transduction enhancer, also called LAH4-A4, a short histidine-rich amphipathic peptide derived from the LAH4 family of DNA transfection agents. Vectofusin-1 enhances the infectivity of lentiviral and γ-retroviral vectors pseudotyped with various envelope glycoproteins. In this study, we compared a family of Vectofusin-1 isomers and showed that Vectofusin-1 remains the lead peptide for HSPC transduction enhancement with LVs pseudotyped with vesicular stomatitis virus glycoproteins and also with modified gibbon ape leukemia virus glycoproteins. By comparing the capacity of numerous Vectofusin-1 variants to promote the modified gibbon ape leukemia virus glycoprotein-pseudotyped lentiviral vector infectivity of HSPCs, the lysine residues on the N-terminal extremity of Vectofusin-1, a hydrophilic angle of 140° formed by the histidine residues in the Schiffer-Edmundson helical wheel representation, hydrophobic residues consisting of leucine were all found to be essential and helped to define a minimal active sequence. The data also show that the critical determinants necessary for lentiviral transduction enhancement are partially different from those necessary for efficient antibiotic or DNA transfection activity of LAH4 derivatives. In conclusion, these results help to decipher the action mechanism of Vectofusin-1 in the context of hCD34+ cell-based gene therapy.
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Affiliation(s)
- Saliha Majdoul
- From Généthon, 91000 Evry, France, INSERM UMR_S951, 91000 Evry, France, University of Evry, 91000 Evry, France
| | - Ababacar K Seye
- From Généthon, 91000 Evry, France, INSERM UMR_S951, 91000 Evry, France
| | - Antoine Kichler
- CNRS, UMR_7199, 67401 Illkirch, France, the University of Strasbourg, 67000 Strasbourg, France, and
| | - Nathalie Holic
- From Généthon, 91000 Evry, France, INSERM UMR_S951, 91000 Evry, France, University of Evry, 91000 Evry, France
| | - Anne Galy
- From Généthon, 91000 Evry, France, INSERM UMR_S951, 91000 Evry, France, University of Evry, 91000 Evry, France,
| | - Burkhard Bechinger
- the University of Strasbourg, 67000 Strasbourg, France, and the Institut de Chimie, CNRS, UMR_7177, 67401 Strasbourg, France
| | - David Fenard
- From Généthon, 91000 Evry, France, INSERM UMR_S951, 91000 Evry, France, University of Evry, 91000 Evry, France,
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Rey-Rico A, Venkatesan JK, Frisch J, Rial-Hermida I, Schmitt G, Concheiro A, Madry H, Alvarez-Lorenzo C, Cucchiarini M. PEO-PPO-PEO micelles as effective rAAV-mediated gene delivery systems to target human mesenchymal stem cells without altering their differentiation potency. Acta Biomater 2015; 27:42-52. [PMID: 26320543 DOI: 10.1016/j.actbio.2015.08.046] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 08/26/2015] [Accepted: 08/26/2015] [Indexed: 11/28/2022]
Abstract
Recombinant adeno-associated viral (rAAV) vectors are clinically adapted gene transfer vectors for direct human cartilage regenerative medicine. Their appropriate use in patients is still limited by a relatively low efficacy of vector penetration inside the cells, by the pre-existing humoral immune responses against the viral capsid proteins in a large part of the human population, and by possible inhibition of viral uptake by clinical compounds such as heparin. The delivery of rAAV vectors to their targets using optimized vehicles is therefore under active investigation. Here, we evaluated the possibility of providing rAAV to human bone marrow-derived mesenchymal stem cells (hMSCs), a potent source of cartilage regenerative cells, via self-assembled poly(ethylene oxide) (PEO) and poly(propylene oxide) (PPO) triblock copolymers as linear poloxamers or X-shaped poloxamines. Encapsulation in poloxamer PF68 and poloxamine T908 polymeric micelles allowed for an effective, durable, and safe modification of hMSCs via rAAV to levels similar to or even higher than those noted upon direct vector application. The copolymers were capable of restoring the transduction of hMSCs with rAAV in conditions of gene transfer inhibition, i.e. in the presence of heparin or of a specific antibody directed against the rAAV capsid, enabling effective therapeutic delivery of a chondrogenic sox9 sequence leading to an enhanced chondrocyte differentiation of the cells. The present findings highlight the value of PEO-PPO copolymers as powerful tools for rAAV-based cartilage regenerative medicine. STATEMENT OF SIGNIFICANCE While recombinant adeno-associated viral (rAAV) vectors are adapted vectors to treat a variety of human disorders, their clinical use is still restricted by pre-existing antiviral immune responses, by a low efficacy of natural vector entry in the target cells, and by inhibition of viral uptake by clinically used compounds like heparin. The search for alternative routes of rAAV delivery is thus becoming a new field of investigation. In the present study, we describe the strong benefits of providing rAAV to human mesenchymal stem cells, a potent source of cells for regenerative medicine, encapsulated in polymeric micelles based on poly(ethylene oxide) (PEO) and poly(propylene oxide) (PPO) triblock copolymers as novel, effective and safe delivery systems for human gene therapy.
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Affiliation(s)
- Ana Rey-Rico
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Germany.
| | - Jagadeesh K Venkatesan
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Germany
| | - Janina Frisch
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Germany
| | - Isabel Rial-Hermida
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Santiago de Compostela, 15702 Santiago de Compostela, Spain
| | - Gertrud Schmitt
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Germany
| | - Angel Concheiro
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Santiago de Compostela, 15702 Santiago de Compostela, Spain
| | - Henning Madry
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Germany; Department of Orthopaedics and Orthopaedic Surgery, Saarland University Medical Center, Homburg, Germany
| | - Carmen Alvarez-Lorenzo
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Germany
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Germany
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Anastasov N, Höfig I, Radulović V, Ströbel S, Salomon M, Lichtenberg J, Rothenaigner I, Hadian K, Kelm JM, Thirion C, Atkinson MJ. A 3D-microtissue-based phenotypic screening of radiation resistant tumor cells with synchronized chemotherapeutic treatment. BMC Cancer 2015; 15:466. [PMID: 26059545 PMCID: PMC4460881 DOI: 10.1186/s12885-015-1481-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 06/02/2015] [Indexed: 01/08/2023] Open
Abstract
Background Radiation resistance presents a challenge to the effective treatment of cancer. If therapeutic compounds were capable of resensitizing resistant tumours then a concurrent chemo-radiation treatment could be used to overcome radiation resistance. Methods We have developed a phenotypic assay to investigate the response of radiation resistant breast cancer cells grown in 3D-microtissue spheroids to combinations of radiation and established chemotherapeutic drugs. The effects were quantified by real time high content imaging of GFP detection area over 14 days. Ten established chemotherapeutic drugs were tested for their ability to enhance the effects of radiation. Results Of ten analysed chemotherapeutics, vinblastine was the most effective compound, with docetaxel and doxorubicine being less effective in combination with radiation. To investigate the response in a model closer to the in vivo situation we investigated the response of heterotypic 3D microtissues containing both fibroblasts and breast cancer cells. Drug treatment of these heterotypic 3D cultures confirmed treatment with radiation plus vinblastine to be additive in causing breast cancer growth inhibition. We have validated the screen by comparing radiation sensitizing effects of known chemotherapeutic agents. In both monotypic and heterotypic models the concurrent treatment of vinblastine and radiation proved more effective inhibitors of mammary cancer cell growth. The effective concentration range of both vinblastine and radiation are within the range used in treatment, suggesting the 3D model will offer a highly relevant screen for novel compounds. Conclusions For the first time comfortable 3D cell-based phenotypic assay is available, that allows high throughput screening of compounds with radiation therapy modulating capacity, opening the field to drug discovery. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1481-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Nataša Anastasov
- Institute of Radiation Biology, Helmholtz Zentrum München - German Research Center for Environmental Health, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany.
| | - Ines Höfig
- Institute of Radiation Biology, Helmholtz Zentrum München - German Research Center for Environmental Health, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany.
| | - Vanja Radulović
- Institute of Radiation Biology, Helmholtz Zentrum München - German Research Center for Environmental Health, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany.
| | | | | | | | - Ina Rothenaigner
- Assay Development and Screening Platform, Institute of molecular Toxicology and Pharmacology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany.
| | - Kamyar Hadian
- Assay Development and Screening Platform, Institute of molecular Toxicology and Pharmacology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany.
| | | | | | - Michael J Atkinson
- Institute of Radiation Biology, Helmholtz Zentrum München - German Research Center for Environmental Health, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany. .,Chair of Radiation Biology, Technical University of Munich, Munich, Germany.
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Han M, Yu D, Song Q, Wang J, Dong P, He J. Polybrene: Observations on cochlear hair cell necrosis and minimal lentiviral transduction of cochlear hair cells. Neurosci Lett 2015; 600:164-70. [PMID: 26071903 DOI: 10.1016/j.neulet.2015.06.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 06/02/2015] [Accepted: 06/04/2015] [Indexed: 12/31/2022]
Abstract
Polybrene is widely used to enhance viral transduction; however, little is known about the utility thereof, in enhancing lentiviral transduction of cochlear cells. In the present study, we examined the cytotoxic effects of polybrene, and the further effects thereof, on lentiviral transduction of cochlear cells, especially sensory hair cells. Cochlear basilar membranes of newborn rats were cultured and treated with 0.1-10 μg/mL polybrene for 24h to explore the potential development of ototoxicity. PI staining and TUNEL detection were used to evaluate necrosis or apoptosis of hair cell. Various doses of lentivirus-GFP were added to cochlear organotypic cultures with safe concentrations of polybrene, incubated for 24h, and cultured (in the absence of the virus and polybrene) for a further 48 h. Transduction efficiencies were evaluated. The results showed that polybrene at 0.1 μg/mL was safe to cochlear cells, and 0.5-10 μg/mL concentration induced hair cell necrosis in a dose-dependent manner. However, supporting cells were not damaged. Lentiviral vectors transduced into cochlear cells and 0.1 μg/mL polybrene enhanced transduction efficiency. However, hair cells were hardly transduced with lentiviral vectors either alone or in the presence of 0.1 μg/mL polybrene. The use of polybrene to aid lentiviral transduction of cochlear hair cells requires further attention.
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Affiliation(s)
- Miaomiao Han
- Department of Otorhinolaryngology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai 200080, China
| | - Dongzhen Yu
- Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai 200233, China
| | - Qiang Song
- Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai 200233, China
| | - Jiping Wang
- Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai 200233, China
| | - Pin Dong
- Department of Otorhinolaryngology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai 200080, China.
| | - Jingchun He
- Department of Otorhinolaryngology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai 200080, China.
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Christel CJ, Schmied P, Jagusch V, Schrödel S, Thirion C, Schmitt K, Salomon M. Versatile Viral Vector Strategies for Postscreening Target Validation and RNAi ON-Target Control. ACTA ACUST UNITED AC 2015; 20:976-84. [PMID: 25873558 DOI: 10.1177/1087057115581803] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 03/24/2015] [Indexed: 12/11/2022]
Abstract
Our approach aims to optimize postscreening target validation strategies using viral vector-driven RNA interference (RNAi) cell models. The RNAiONE validation platform is an array of plasmid-based expression vectors that each drives tandem expression of the gene of interest (GOI) with one small hairpin RNA (shRNA) from a set of computed candidate sequences. The best-performing shRNA (>85% silencing efficiency) is then integrated in an inducible, all-in-one lentiviral vector to transduce pharmacologically relevant cell types that endogenously express the GOI. VariCHECK is used subsequently to combine the inducible knockdown with an equally inducible rescue of the GOI for ON-target phenotype verification. The complete RNAiONE-VariCHECK system relies on three key elements to ensure high predictability: (1) maximized silencing efficiencies by a focused shRNA validation process, (2) homogeneity of the RNAi cell pools by application of sophisticated viral vector technologies, and (3) exploiting the advantages of inducible expression systems. By using a reversible expression system, our strategy adds critical information to hot candidates from RNAi screens and avoids potential side effects that may be caused by other, irreversible genomic manipulation methods such as transcription activator-like effector nucleases (TALEN) or clustered regularly interspaced short palindromic repeats/Cas9 (CRISPR/Cas). This approach will add credibility to top-hit screening candidates and protect researchers from costly misinterpretations early in the preclinical drug development process.
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Systematic improvement of lentivirus transduction protocols by antibody fragments fused to VSV-G as envelope glycoprotein. Biomaterials 2014; 35:4204-12. [DOI: 10.1016/j.biomaterials.2014.01.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 01/22/2014] [Indexed: 12/22/2022]
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Pitto-Barry A, Barry NPE. Pluronic® block-copolymers in medicine: from chemical and biological versatility to rationalisation and clinical advances. Polym Chem 2014. [DOI: 10.1039/c4py00039k] [Citation(s) in RCA: 239] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Shubhra QTH, Tóth J, Gyenis J, Feczkó T. Poloxamers for Surface Modification of Hydrophobic Drug Carriers and Their Effects on Drug Delivery. POLYM REV 2014. [DOI: 10.1080/15583724.2013.862544] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Over-expression of deubiquitinating enzyme USP14 in lung adenocarcinoma promotes proliferation through the accumulation of β-catenin. Int J Mol Sci 2013; 14:10749-60. [PMID: 23702845 PMCID: PMC3709700 DOI: 10.3390/ijms140610749] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 04/11/2013] [Accepted: 05/03/2013] [Indexed: 02/08/2023] Open
Abstract
The deubiquitinating enzyme USP14 has been identified and biochemically studied, but its role in lung cancer remains to be elucidated. The aim of this study was to evaluate the prognostic significance of USP14 in patients with lung adenocarcinoma and to define its role in lung cancer cell proliferation. USP14 mRNA levels in different non-small cell lung cancer (NSCLC) cell lines were detected by real-time qPCR. USP14 protein levels in surgically resected samples from NSCLC patients, and in NSCLC cell lines, were detected by immunohistochemistry or Western blot. The correlation of USP14 expression with clinical characteristics and prognosis was determined by survival analysis. After silencing USP14, cell proliferation was assessed by MTT assay and the cell cycle was measured by FACS assay. It was found that USP14 expression was upregulated in NSCLC cells, especially in adenocarcinoma cells. Over-expression of USP14 was associated with shorter overall survival of patients. Downregulation of USP14 expression arrested the cell cycle, which may be related to β-catenin degradation. Over-expression of USP14 was associated with poor prognosis in NSCLC patients and promoted tumor cell proliferation, which suggests that USP14 is a tumor-promoting factor and a promising therapeutic target for NSCLC.
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