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Chen X, Du J, Yun S, Xue C, Yao Y, Rao S. Recent advances in CRISPR-Cas9-based genome insertion technologies. Mol Ther Nucleic Acids 2024; 35:102138. [PMID: 38379727 PMCID: PMC10878794 DOI: 10.1016/j.omtn.2024.102138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Programmable genome insertion (or knock-in) is vital for both fundamental and translational research. The continuously expanding number of CRISPR-based genome insertion strategies demonstrates the ongoing development in this field. Common methods for site-specific genome insertion rely on cellular double-strand breaks repair pathways, such as homology-directed repair, non-homologous end-joining, and microhomology-mediated end joining. Recent advancements have further expanded the toolbox of programmable genome insertion techniques, including prime editing, integrase coupled with programmable nuclease, and CRISPR-associated transposon. These tools possess their own capabilities and limitations, promoting tremendous efforts to enhance editing efficiency, broaden targeting scope and improve editing specificity. In this review, we first summarize recent advances in programmable genome insertion techniques. We then elaborate on the cons and pros of each technique to assist researchers in making informed choices when using these tools. Finally, we identify opportunities for future improvements and applications in basic research and therapeutics.
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Affiliation(s)
- Xinwen Chen
- 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, Tianjin 300020, China
- Tianjin Institutes of Health Science, Tianjin 301600, China
| | - Jingjing Du
- 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, Tianjin 300020, China
- Tianjin Institutes of Health Science, Tianjin 301600, China
| | - Shaowei Yun
- 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, Tianjin 300020, China
- Tianjin Institutes of Health Science, Tianjin 301600, China
| | - Chaoyou Xue
- Key Laboratory of Engineering Biology for Low-Carbon Manufacturing, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West 7th Avenue, Tianjin Airport Economic Area, Tianjin 300308, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yao Yao
- 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, Tianjin 300020, China
- Tianjin Institutes of Health Science, Tianjin 301600, China
| | - Shuquan Rao
- 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, Tianjin 300020, China
- Tianjin Institutes of Health Science, Tianjin 301600, China
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2
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Sanchez-Guijo F, Vives J, Ruggeri A, Chabannon C, Corbacioglu S, Dolstra H, Farge D, Gagelmann N, Horgan C, Kuball J, Neven B, Rintala T, Rocha V, Sanchez-Ortega I, Snowden JA, Zwaginga JJ, Gnecchi M, Sureda A. Current challenges in cell and gene therapy: a joint view from the European Committee of the International Society for Cell & Gene Therapy (ISCT) and the European Society for Blood and Marrow Transplantation (EBMT). Cytotherapy 2024:S1465-3249(24)00054-9. [PMID: 38416085 DOI: 10.1016/j.jcyt.2024.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 02/12/2024] [Accepted: 02/12/2024] [Indexed: 02/29/2024]
Abstract
Cell and gene therapy poses evolving challenges. The current article summarizes the discussions held by European Regional Committee of the International Society for Cell & Gene Therapy and the European Society for Blood and Marrow Transplantation (EBMT) on the current challenges in this field, focusing on the European setting. This article emphasizes the imperative assessment of real-world cell and gene therapy activity, advocating for expanded registries beyond hematopoietic transplantation and chimeric antigen receptor-T-cell therapy. Accreditation's role in ensuring standardized procedures, as exemplified by JACIE (The Joint Accreditation Committee of ISCT-Europe and EBMT), is crucial for safety. Access to commercial products and reimbursement variations among countries underscore the need for uniform access to advanced therapy medical products (ATMPs). Academic product development and point-of-care manufacturing face barriers to patient access. Hospital Exemption's potential, demonstrated by some initial experiences, may increase patient accessibility in individual situations. Regulatory challenges, including the ongoing European ATMPs legislation review, necessitate standardized criteria for Hospital Exemption and mandatory reporting within registries. Efforts to combat unproven therapies and fraud involve collaboration between scientific societies, regulatory bodies and patient groups. Finally, is important to highlight the vital role of education and workforce development in meeting the escalating demand for specialized professionals in the ATMP field. Collaboration among scientific societies, academic institutions, industry, regulatory bodies and patient groups is crucial for overcoming all these challenges to increase gene and cell therapy activity in Europe.
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Affiliation(s)
- Fermin Sanchez-Guijo
- University of Salamanca, IBSAL-University Hospital of Salamanca, Salamanca, Spain.
| | - Joaquim Vives
- Banc de Sang i Teixits (BST). Musculoskeletal Tissue Engineering Group, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Departament de Medicina, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Annalisa Ruggeri
- Hematology and BMT Unit, San Raffaele Scientific Institute, Milano, Italy, and Cellular Therapy and Immunobiology working party of the EBMT
| | - Christian Chabannon
- Centre de Thérapie Cellulaire, Institut Paoli-Calmettes Comprehensive Cancer Center & Module Biothérapies du Centre d'Investigation Clinique de Marseille, CBT-1409 INSERM, Aix-Marseille Université, AP-HM, Institut Paoli-Calmettes, Marseille, France
| | | | - Harry Dolstra
- Laboratory of Hematology - Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Dominique Farge
- AP-HP, Hôpital St-Louis, Unité de Médecine Interne (UF04): CRMR MATHEC, Maladies Auto-immunes et Thérapie Cellulaire, Centre de Référence des Maladies auto-immunes systémiques Rares d'Ile-de-France, and Université Paris Cité, IRSL, Recherche Clinique en hématologie, immunologie et transplantation, URP3518, Paris, France
| | - Nico Gagelmann
- University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Claire Horgan
- Department of Bone Marrow Transplant and Cellular Therapy, Royal Manchester Children's Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | - Jurgen Kuball
- Department of Hematology and Center for Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Benedicte Neven
- Immuno-hematology and Rheumatology Unit, Necker Children's Hospital, Assistance Publique-Hôpitaux de Paris, Université de Paris, INSERM 1163, Institut Imagine, Paris, Île-de-France, France
| | | | - Vanderson Rocha
- Hematology Bone Marrow Transplant Unit, Hospital Sirio-Libanes, Sao Paulo, Brazil
| | | | - John A Snowden
- Department of Haematology, Sheffield Teaching Hospitals NHS Foundation Trust and Division of Clinical Medicine, School of Medicine and Population Health, University of Sheffield, Sheffield, UK
| | | | - Massimiliano Gnecchi
- Department of Molecular Medicine, Unit of Cardiology, University of Pavia, Pavia, Italy; Department of Cardiothoracic and Vascular Sciences, Translational Cardiology Unit, Fondazione IRCCS, Policlinico San Matteo, Pavia, Italy
| | - Anna Sureda
- Clinical Hematology Department, Institut Català d'Oncologia - L'Hospitalet, IDIBELL, Universitat de Barcelona, Barcelona, Spain
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3
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Hampson G, Steuten L. Netflix and pill: is there a role for volume-delinked subscription-style payments beyond antimicrobials?'. Expert Rev Pharmacoecon Outcomes Res 2024; 24:1-3. [PMID: 37830872 DOI: 10.1080/14737167.2023.2271171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 10/11/2023] [Indexed: 10/14/2023]
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4
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Smith J, Guapo F, Strasser L, Millán-Martín S, Milian SG, Snyder RO, Bones J. Development of a Rapid Adeno-Associated Virus (AAV) Identity Testing Platform through Comprehensive Intact Mass Analysis of Full-Length AAV Capsid Proteins. J Proteome Res 2023; 23:161-174. [PMID: 38123456 PMCID: PMC10775144 DOI: 10.1021/acs.jproteome.3c00513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 12/04/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023]
Abstract
Adeno-associated viruses (AAVs) are commonly used as vectors for the delivery of gene therapy targets. Characterization of AAV capsid proteins (VPs) and their post-translational modifications (PTMs) have become a critical attribute monitored to evaluate product quality. Liquid chromatography-mass spectrometry (LC-MS) analysis of intact AAV VPs provides both quick and reliable serotype identification as well as proteoform information on each VP. Incorporating these analytical strategies into rapid good manufacturing practice (GMP)-compliant workflows containing robust, but simplified, data processing methods is necessary to ensure effective product quality control (QC) during production. Here, we present a GMP-compliant LC-MS workflow for the rapid identification and in-depth characterization of AAVs. Hydrophilic interaction liquid chromatography (HILIC) MS with difluoroacetic acid as a mobile phase modifier is utilized to achieve the intact separation and identification of AAV VPs and their potential proteoforms. Peptide mapping is performed to confirm PTMs identified during intact VP analysis and for in-depth PTM characterization. The intact separations platform is then incorporated into a data processing workflow developed using GMP-compliant software capable of rapid AAV serotype identification and, if desired, specific serotype PTM monitoring and characterization. Such a platform provides product QC capabilities that are easily accessible in a regulatory setting.
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Affiliation(s)
- Josh Smith
- Characterisation
and Comparability Laboratory, The National
Institute for Bioprocessing Research and Training, Foster Avenue, Mount Merrion, Dublin A94 X099, Ireland
| | - Felipe Guapo
- Characterisation
and Comparability Laboratory, The National
Institute for Bioprocessing Research and Training, Foster Avenue, Mount Merrion, Dublin A94 X099, Ireland
| | - Lisa Strasser
- Characterisation
and Comparability Laboratory, The National
Institute for Bioprocessing Research and Training, Foster Avenue, Mount Merrion, Dublin A94 X099, Ireland
| | - Silvia Millán-Martín
- Characterisation
and Comparability Laboratory, The National
Institute for Bioprocessing Research and Training, Foster Avenue, Mount Merrion, Dublin A94 X099, Ireland
| | - Steven G. Milian
- Patheon
Viral Vector Services, 13859 Progress Blvd, Alachua, Florida 32615, United States
| | - Richard O. Snyder
- Patheon
Viral Vector Services, 13859 Progress Blvd, Alachua, Florida 32615, United States
| | - Jonathan Bones
- Characterisation
and Comparability Laboratory, The National
Institute for Bioprocessing Research and Training, Foster Avenue, Mount Merrion, Dublin A94 X099, Ireland
- School
of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin D04 V1W8.F, Ireland
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Francis N, Braun M, Neagle S, Peiffer S, Bohn A, Rosenthal A, Olbrich T, Lollies S, Ilsmann K, Hauck C, Gerstmayer B, Weber S, Kirkpatrick A. Development of an automated manufacturing process for large-scale production of autologous T cell therapies. Mol Ther Methods Clin Dev 2023; 31:101114. [PMID: 37790245 PMCID: PMC10544074 DOI: 10.1016/j.omtm.2023.101114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 09/13/2023] [Indexed: 10/05/2023]
Abstract
Engineered T cell therapies have shown significant clinical success. However, current manufacturing capabilities present a challenge in bringing these therapies to patients. Furthermore, the cost of development and manufacturing is still extremely high due to complexity of the manufacturing process. Increased automation can improve quality and reproducibility while reducing costs through minimizing hands-on operator time, allowing parallel manufacture of multiple products, and reducing the complexity of technology transfer. In this article, we describe the results of a strategic alliance between GSK and Miltenyi Biotec to develop a closed, automated manufacturing process using the CliniMACS Prodigy for autologous T cell therapy products that can deliver a high number of cells suitable for treating solid tumor indications and compatible with cryopreserved apheresis and drug product. We demonstrate the ability of the T cell Transduction - Large Scale process to deliver a significantly higher cell number than the existing process, achieving 1.5 × 1010 cells after 12 days of expansion, without affecting other product attributes. We demonstrate successful technology transfer of this robust process into three manufacturing facilities.
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Affiliation(s)
- Natalie Francis
- Cell & Gene Therapy, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, UK
| | - Marion Braun
- Cellular Therapy, Industrial Workflow Development, Miltenyi Biotec B.V. & Co. KG, Friedrich-Ebert-Str. 68, 51429 Bergisch Gladbach, Germany
| | - Sarah Neagle
- Cell & Gene Therapy, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, UK
| | - Sabine Peiffer
- Cellular Therapy, Industrial Workflow Development, Miltenyi Biotec B.V. & Co. KG, Friedrich-Ebert-Str. 68, 51429 Bergisch Gladbach, Germany
| | - Alexander Bohn
- Cellular Therapy, Industrial Workflow Development, Miltenyi Biotec B.V. & Co. KG, Friedrich-Ebert-Str. 68, 51429 Bergisch Gladbach, Germany
| | - Alexander Rosenthal
- Cellular Therapy, Industrial Workflow Development, Miltenyi Biotec B.V. & Co. KG, Friedrich-Ebert-Str. 68, 51429 Bergisch Gladbach, Germany
| | - Tanita Olbrich
- Cellular Therapy, Industrial Workflow Development, Miltenyi Biotec B.V. & Co. KG, Friedrich-Ebert-Str. 68, 51429 Bergisch Gladbach, Germany
| | - Sophia Lollies
- Cellular Therapy, Industrial Workflow Development, Miltenyi Biotec B.V. & Co. KG, Friedrich-Ebert-Str. 68, 51429 Bergisch Gladbach, Germany
| | - Keijo Ilsmann
- Cellular Therapy, Industrial Workflow Development, Miltenyi Biotec B.V. & Co. KG, Friedrich-Ebert-Str. 68, 51429 Bergisch Gladbach, Germany
| | - Carola Hauck
- Cellular Therapy, Industrial Workflow Development, Miltenyi Biotec B.V. & Co. KG, Friedrich-Ebert-Str. 68, 51429 Bergisch Gladbach, Germany
| | - Bernhard Gerstmayer
- Cellular Therapy, Industrial Workflow Development, Miltenyi Biotec B.V. & Co. KG, Friedrich-Ebert-Str. 68, 51429 Bergisch Gladbach, Germany
| | - Silvio Weber
- Cellular Therapy, Industrial Workflow Development, Miltenyi Biotec B.V. & Co. KG, Friedrich-Ebert-Str. 68, 51429 Bergisch Gladbach, Germany
| | - Aileen Kirkpatrick
- Cell & Gene Therapy, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, UK
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Wills CA, Drago D, Pietrusko RG. Clinical holds for cell and gene therapy trials: Risks, impact, and lessons learned. Mol Ther Methods Clin Dev 2023; 31:101125. [PMID: 37886603 PMCID: PMC10597781 DOI: 10.1016/j.omtm.2023.101125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
The recent increase in cell and gene therapies being developed has been coupled with a disproportionate increase in Food and Drug Administration (FDA)-mandated clinical holds. Aiming to better understand causes and secondary effects of these clinical holds on biotechnology companies, we analyzed 33 clinical holds that were publicly announced from January 2020 to December 2022. Approximately 80% of the analyzed clinical holds were formally lifted by the close of our study after an average of 6.2 months, and several trials have had significant clinical success following a hold. CAR T cell therapies accounted for nine holds, Lentiviral and AAV-based gene therapies accounted for five and 15 holds, respectively, and other cell and gene therapies accounted for four holds. The most common trigger was an adverse event or patient death. To remove a hold, protocol amendments were the most requested resolution by FDA. While there is no way to guarantee a therapy will not be placed on clinical hold, especially following unexpected adverse events, some deficiencies are avoidable. Utilizing FDA-provided resources on regulations and expectations for cell and gene therapy investigational new drug applications, inclusion of an external safety monitoring board, and a proactive risk assessment plan may prevent a clinical hold or result in a shortened duration.
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Affiliation(s)
| | - Daniela Drago
- NDA Partners, Washington, DC 20036, USA
- Members of the Regulatory Affairs Committee of American Society of Gene & Cell Therapy (ASGCT)
| | - Robert G. Pietrusko
- Vor Biopharma, Cambridge, MA 02140, USA
- Members of the Regulatory Affairs Committee of American Society of Gene & Cell Therapy (ASGCT)
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7
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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] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 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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8
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Godwin S, Elkind S, Carey T, DiGiandomenico K, Balbo A, Blocksidge J, Olson J, Miklosko J, Njongmeta L, Preston F, Hodges R. Environmental Health and Safety Offers a Biosafety Risk Assessment for a Theoretical Model of a Gene Therapy Process Transfer from Research and Development to Large-Scale Manufacturing. Appl Biosaf 2023; 28:164-175. [PMID: 37736419 PMCID: PMC10510678 DOI: 10.1089/apb.2023.0007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
Introduction This article provides a strategy by which a manufacturing process with a Biosafety Level 2 (BL2) designation can be downgraded to Biosafety Level 1 (BL1). The principles of the downgrading process are based on the robust contamination controls in clinical and commercial manufacturing, which typically are not part of Research and Development processes. These strict requirements along with the application of current Good Manufacturing Practice (cGMP) principles provide a framework by which processes can be suitably managed and controlled to mitigate biohazard risk, specifically for cell lines that may be contaminated with human pathogenic viral agents. Purpose We demonstrate how a risk assessment guide was used to define the risk profile of a theoretical process with a human cell line intended for clinical/commercial application. Based on the risk assessment, key BL2 elements were identified as suitable for downgrading, including facility containment controls, emergency spill response plans, and storage and shipping requirements. For various reasons, some aspects of the systems were deemed unsuitable for downgrading due to the severity of the control risk and, therefore, remained at BL2. Summary and Conclusions We have used an established risk assessment guide to show how cGMP compliments and augments biosafety containment. We provide justification for downgrading from BL2 to BL1 for clinical and commercial cell and gene therapy manufacturing with human cell lines.
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Affiliation(s)
| | - Shana Elkind
- Rocket Pharmaceuticals, Inc., Cranbury, New Jersey, USA
| | - Timmy Carey
- BioMarin Pharmaceutical, Inc., Novato, California, USA
| | | | - Alexa Balbo
- Ultragenyx Pharmaceutical Inc., Novato, California, USA
| | | | - Jessica Olson
- Process Research & Development, Merck & Co., Inc., Rahway, New Jersey, USA
| | | | | | - Francine Preston
- Johnson & Johnson Services, Inc., Spring House, Pennsylvania, USA
| | - Rachel Hodges
- BioPhorum Operations Group Ltd., London, United Kingdom
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9
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Wu Q, Elkind S, Preston F, Wachala M, Dunn E, White SK, Windhorst D, DiGiandomenico K, McGuire C, Brok H, Hodges R. An Industry Proposal for a Cell and Gene Therapy Safety Data Sheet. Appl Biosaf 2023; 28:176-191. [PMID: 37736420 PMCID: PMC10510680 DOI: 10.1089/apb.2023.0009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
Introduction A safety data sheet (SDS) is an established hazard communication tool for chemicals, for which no comparable document exists in the biotherapeutics industry. As the cell and gene therapy (CGT) field expands, industry leaders have identified a growing need to address this gap in communication of the unique occupational health and safety risks posed by CGT materials and products. Methods Following the sections of a traditional chemical SDS, information was modified by industry subject matter experts, relevant to CGT biological materials. This guide was developed based on assumptions of a maximum biosafety level 2, and any chemical components present in the material were excluded from the hazard classification. Results The guide contains necessary information to conduct a workplace risk assessment and communicate the unique workplace hazards posed by potential exposures to the material. The target audience is intended to be entities handling and producing these materials, plus collaborators, contractors, or operations sites receiving and handling the CGT material. An example of a CGT SDS is provided in Table 1. Discussion The CGT SDS provides industry with a best practice to address an existing gap in hazard communication for CGT. We expect that, as the field evolves, so may the contents. The CGT SDS can be used as a reference for other biological modalities in the field. Conclusions This initial CGT SDS communicates workplace hazards and assesses the unique risks posed by these biological materials and can assist in creating exposure control plans specific to the workplace hazards.
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Affiliation(s)
- Qirong Wu
- Janssen, Spring House, Pennsylvania, USA
| | - Shana Elkind
- Rocket Pharmaceuticals, Inc., Cranbury, New Jersey, USA
| | - Francine Preston
- Johnson & Johnson Services, Inc., Spring House, Pennsylvania, USA
| | | | - Erin Dunn
- Fujifilm Diosynth Biotechnologies, College Station, Texas, USA
| | | | | | | | - Colin McGuire
- Formally of Thermo Fisher Scientific, Waltham, Massachusetts, USA
| | | | - Rachel Hodges
- BioPhorum Operations Group Ltd., London, United Kingdom
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10
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El Harane S, Zidi B, El Harane N, Krause KH, Matthes T, Preynat-Seauve O. Cancer Spheroids and Organoids as Novel Tools for Research and Therapy: State of the Art and Challenges to Guide Precision Medicine. Cells 2023; 12:cells12071001. [PMID: 37048073 PMCID: PMC10093533 DOI: 10.3390/cells12071001] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/14/2023] [Accepted: 03/20/2023] [Indexed: 04/14/2023] Open
Abstract
Spheroids and organoids are important novel players in medical and life science research. They are gradually replacing two-dimensional (2D) cell cultures. Indeed, three-dimensional (3D) cultures are closer to the in vivo reality and open promising perspectives for academic research, drug screening, and personalized medicine. A large variety of cells and tissues, including tumor cells, can be the starting material for the generation of 3D cultures, including primary tissues, stem cells, or cell lines. A panoply of methods has been developed to generate 3D structures, including spontaneous or forced cell aggregation, air-liquid interface conditions, low cell attachment supports, magnetic levitation, and scaffold-based technologies. The choice of the most appropriate method depends on (i) the origin of the tissue, (ii) the presence or absence of a disease, and (iii) the intended application. This review summarizes methods and approaches for the generation of cancer spheroids and organoids, including their advantages and limitations. We also highlight some of the challenges and unresolved issues in the field of cancer spheroids and organoids, and discuss possible therapeutic applications.
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Affiliation(s)
- Sanae El Harane
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, 1206 Geneva, Switzerland
| | - Bochra Zidi
- Department of Medicine, Faculty of Medicine, University of Geneva, 1206 Geneva, Switzerland
| | - Nadia El Harane
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, 1206 Geneva, Switzerland
| | - Karl-Heinz Krause
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, 1206 Geneva, Switzerland
| | - Thomas Matthes
- Department of Medicine, Faculty of Medicine, University of Geneva, 1206 Geneva, Switzerland
| | - Olivier Preynat-Seauve
- Department of Medicine, Faculty of Medicine, University of Geneva, 1206 Geneva, Switzerland
- Laboratory of Experimental Cell Therapy, Department of Diagnostics, Geneva University Hospitals, 1206 Geneva, Switzerland
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11
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Wang W, Gao T, Luo J, Guo L, Li X, Li Y, Chen H. Size distribution analysis of residual host cell DNA fragments in lentivirus by CGE-LIF. Electrophoresis 2023; 44:462-471. [PMID: 36353919 DOI: 10.1002/elps.202200218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 11/02/2022] [Accepted: 11/02/2022] [Indexed: 11/12/2022]
Abstract
During the production of cell and gene therapy products, residual host cell DNA (HCD) could cause safety risks of the biological products, and the longer the residual HCD fragment, the greater the risk to the human body. For this reason, it was necessary to develop an effective method for the size distribution analysis of residual HCD fragments with high accuracy and sensitivity. In this study, capillary gel electrophoresis with laser-induced fluorescence detector (CGE-LIF) was used to analyze the size distribution of residual HCD fragments in lentivirus products. The results confirmed that lentiviral RNA genome could interfere with the size distribution analysis of residual HCD fragments. By optimizing the amount of RNase I and digestion time in sample pretreatment process, the interfere of RNA genome could be avoided. The specificity, precision, accuracy, linear range, the detection of limit (LOD), and the quantification of limit (LOQ) of CGE-LIF method were also validated. The results showed that the CGE-LIF method had a good performance both in terms of specificity and reproducibility. The intra- and inter-day relative standard deviations of migration time and corrected peak area were all less than 1% and 2%, respectively. The 200 bp DNA marker had a good linearity between 50 and 1000 pg/ml. The LOD and LOQ of 200 bp DNA marker were 2.59 and 8.64 pg/ml, respectively. In addition, this method was successfully used to analyze the size distribution analysis of residual HCD fragments in lentivirus products with different production processes.
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Affiliation(s)
| | | | - Ji Luo
- SCIEX, Beijing, P. R. China
| | | | - Xiang Li
- Division of Recombinant Biological Products, National Institutes for Food and Drug Control (NIFDC), Beijing, P. R. China
| | - Yan Li
- National Medical Products Administration (NMPA), Key Laboratory for Quality Control and Evaluation of Vaccines and Biological Products, SiChuan Institute for Drug Control, Chengdu, P. R. China
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12
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Lee S, Lee JH. Cell and gene therapy regulatory, pricing, and reimbursement framework: With a focus on South Korea and the EU. Front Public Health 2023; 11:1109873. [PMID: 36908458 PMCID: PMC9998493 DOI: 10.3389/fpubh.2023.1109873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 02/01/2023] [Indexed: 02/26/2023] Open
Abstract
Ever since relevant bioengineering technologies have sufficiently matured to the platformizable commercialization stage, a slew of money has flocked to the cell and gene therapy market over the last few years, resulting in an abundance of clinical studies in the field. Newer modalities have brought up a string of regulatory and legislative tasks, such as developing guidelines and legislative rules to systematically regulate newer pharmaceutical products. Accordingly, another layer of legislation and guidelines tailored for cell and gene therapies has been introduced and is expected to evolve on par with technological progress. Furthermore, authorities have shifted to pricing and reimbursement policies that can share risks for cost and outcome among stakeholders altogether, such as developers and the government, while expanding the accessibility of patients to innovative cell and gene therapies. This review attempts to capture the salient regulatory features of the cell and gene therapy market in the context of South Korea and the European Union and points out where two sovereign entities currently stand on each policy element and how each tackles regulatory challenges. We can observe the converging trend where regulatory, pricing and reimbursement rules of adjoining countries in the supranational union or member countries of a consortium are getting more aligned. Evidently, concerted efforts to share regulatory science knowledge and embrace reference pricing have played their parts. The authors argue that policy priorities should be placed on initiatives to harmonize with other medical authorities to better the rights of patients and clear out the uncertainties of developers, ultimately to share and advance regulatory science and layout forward-looking policies at opportune times.
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Affiliation(s)
- SungKyung Lee
- Center for Growth Engine Industries, Korea Institute for Industrial Economics and Trade (KIET), Sejong, Republic of Korea
| | - Jong Hyuk Lee
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
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13
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Salvador WOS, Ribeiro IAB, Nogueira DES, Ferreira FC, Cabral JMS, Rodrigues CAV. Bioprocess Economic Modeling: Decision Support Tools for the Development of Stem Cell Therapy Products. Bioengineering (Basel) 2022; 9:bioengineering9120791. [PMID: 36550997 PMCID: PMC9774475 DOI: 10.3390/bioengineering9120791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 12/07/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022]
Abstract
Over recent years, the field of cell and gene therapy has witnessed rapid growth due to the demonstrated benefits of using living cells as therapeutic agents in a broad range of clinical studies and trials. Bioprocess economic models (BEMs) are fundamental tools for guiding decision-making in bioprocess design, being capable of supporting process optimization and helping to reduce production costs. These tools are particularly important when it comes to guiding manufacturing decisions and increasing the likelihood of market acceptance of cell-based therapies, which are often cost-prohibitive because of high resource and quality control costs. Not only this, but the inherent biological variability of their underlying bioprocesses makes them particularly susceptible to unforeseen costs arising from failed or delayed production batches. The present work reviews important concepts concerning the development of bioprocesses for stem cell therapy products and highlights the valuable role which BEMs can play in this endeavor. Additionally, some theoretical concepts relevant to the building and structuring of BEMs are explored. Finally, a comprehensive review of the existent BEMs so far reported in the scientific literature for stem cell-related bioprocesses is provided to showcase their potential usefulness.
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Affiliation(s)
- William O. S. Salvador
- Department of Bioengineering, iBB—Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Associate Laboratory, i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Inês A. B. Ribeiro
- Department of Bioengineering, iBB—Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Associate Laboratory, i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Diogo E. S. Nogueira
- Department of Bioengineering, iBB—Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Associate Laboratory, i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Frederico C. Ferreira
- Department of Bioengineering, iBB—Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Associate Laboratory, i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Joaquim M. S. Cabral
- Department of Bioengineering, iBB—Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Associate Laboratory, i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Carlos A. V. Rodrigues
- Department of Bioengineering, iBB—Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Associate Laboratory, i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Correspondence:
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14
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Uchiyama A, Naritomi Y, Hashimoto Y, Hanada T, Watanabe K, Kitta K, Suzuki G, Komatsuno T, Nakamura T. Understanding quantitative polymerase chain reaction bioanalysis issues before validation planning: Japan Bioanalysis Forum discussion group. Bioanalysis 2022; 14:1391-405. [PMID: 36621859 DOI: 10.4155/bio-2022-0190] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Investigating the biodistribution of cell and gene therapy products may play an important role in evaluating their safety and pharmacology. As quantitative polymerase chain reaction (qPCR) is often used for these analyses, it is essential to improve the reliability of bioanalysis performed using qPCR. In this report, the authors discuss the use of qPCR in nonclinical studies, as it can be used to detect target DNA/RNA and it is quantitative and applicable for long-term analysis. The authors also discuss points to consider during bioanalysis using qPCR and present appropriate validation items and their criteria. The authors anticipate the discussion provided herein to contribute to the development of validation and sample analysis for pharmaceuticals analyzed using qPCR.
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15
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Olgasi C, Borsotti C, Merlin S, Bergmann T, Bittorf P, Adewoye AB, Wragg N, Patterson K, Calabria A, Benedicenti F, Cucci A, Borchiellini A, Pollio B, Montini E, Mazzuca DM, Zierau M, Stolzing A, Toleikis P, Braspenning J, Follenzi A. Efficient and safe correction of hemophilia A by lentiviral vector-transduced BOECs in an implantable device. Mol Ther Methods Clin Dev 2021; 23:551-566. [PMID: 34853801 PMCID: PMC8606349 DOI: 10.1016/j.omtm.2021.10.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/06/2021] [Accepted: 10/29/2021] [Indexed: 11/18/2022]
Abstract
Hemophilia A (HA) is a rare bleeding disorder caused by deficiency/dysfunction of the FVIII protein. As current therapies based on frequent FVIII infusions are not a definitive cure, long-term expression of FVIII in endothelial cells through lentiviral vector (LV)-mediated gene transfer holds the promise of a one-time treatment. Thus, here we sought to determine whether LV-corrected blood outgrowth endothelial cells (BOECs) implanted through a prevascularized medical device (Cell Pouch) would rescue the bleeding phenotype of HA mice. To this end, BOECs from HA patients and healthy donors were isolated, expanded, and transduced with an LV carrying FVIII driven by an endothelial-specific promoter employing GMP-like procedures. FVIII-corrected HA BOECs were either directly transplanted into the peritoneal cavity or injected into a Cell Pouch implanted subcutaneously in NSG-HA mice. In both cases, FVIII secretion was sufficient to improve the mouse bleeding phenotype. Indeed, FVIII-corrected HA BOECs reached a relatively short-term clinically relevant engraftment being detected up to 16 weeks after transplantation, and their genomic integration profile did not show enrichment for oncogenes, confirming the process safety. Overall, this is the first preclinical study showing the safety and feasibility of transplantation of GMP-like produced LV-corrected BOECs within an implantable device for the long-term treatment of HA.
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Affiliation(s)
- Cristina Olgasi
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
| | - Chiara Borsotti
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
| | - Simone Merlin
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
| | - Thorsten Bergmann
- Department of Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, 97082 Würzburg, Germany
| | - Patrick Bittorf
- Department of Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, 97082 Würzburg, Germany
| | - Adeolu Badi Adewoye
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, B15 2TT Birmingham, UK
| | - Nicholas Wragg
- Guy Hilton Research Centre, School of Pharmacy and Bioengineering, Keele University, Staffordshire, ST47QB Stoke-on-Trent, UK
| | | | | | | | - Alessia Cucci
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
| | - Alessandra Borchiellini
- Haematology Unit Regional Center for Hemorrhagic and Thrombotic Diseases, City of Health and Science University Hospital of Molinette, 10126 Turin, Italy
| | - Berardino Pollio
- Immune-Haematology and Transfusion Medicine, Regina Margherita Children Hospital, City of Health and Science University Hospital of Molinette, 10126 Turin, Italy
| | | | | | - Martin Zierau
- IMS Integrierte Management Systeme e. K., 64646 Heppenheim, Germany
| | - Alexandra Stolzing
- Centre for Biological Engineering, School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, LE113TU Loughborough, UK
- SENS Research Foundation, Mountain View, CA 94041, USA
| | | | - Joris Braspenning
- Department of Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, 97082 Würzburg, Germany
| | - Antonia Follenzi
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
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16
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De Rosa L, Enzo E, Zardi G, Bodemer C, Magnoni C, Schneider H, De Luca M. Hologene 5: A Phase II/III Clinical Trial of Combined Cell and Gene Therapy of Junctional Epidermolysis Bullosa. Front Genet 2021; 12:705019. [PMID: 34539738 PMCID: PMC8440932 DOI: 10.3389/fgene.2021.705019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 07/28/2021] [Indexed: 11/20/2022] Open
Abstract
Epidermolysis bullosa (EB) is a group of devastating genetic diseases characterized by skin and mucosal fragility and formation of blisters, which develop either spontaneously or in response to minor mechanical trauma. There is no definitive therapy for any form of EB. Intermediate junctional EB (JEB) caused by mutations in the gene LAMB3 has been the first genetic skin disease successfully tackled by ex vivo gene therapy. Here, we present a multicenter, open-label, uncontrolled phase II/III study that aims at confirming the efficacy of Hologene 5, a graft consisting of cultured transgenic keratinocytes and epidermal stem cells and meant to combine cell and gene therapy for the treatment of LAMB3-related JEB. Autologous clonogenic keratinocytes will be isolated from patients’ skin biopsies, genetically corrected with a gamma-retroviral vector (γRV) carrying the full-length human LAMB3 cDNA and plated onto a fibrin support (144cm2). The transgenic epidermis will be transplanted onto surgically prepared selected skin areas of at least six JEB patients (four pediatric and two adults). Evaluation of clinical efficacy will include, as primary endpoint, a combination of clinical parameters, such as percentage of re-epithelialization, cellular, molecular, and functional parameters, mechanical stress tests, and patient-reported outcome (PRO), up to 12months after transplantation. Safety and further efficacy endpoints will also be assessed during the clinical trial and for additional 15years in an interventional non-pharmacological follow-up study. If successful, this clinical trial would provide a therapeutic option for skin lesions of JEB patients with LAMB3 mutations and pave the way to a combined cell and gene therapy platform tackling other forms of EB and different genodermatoses. Clinical Trial Registration: EudraCT Number: 2018-000261-36.
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Affiliation(s)
| | - Elena Enzo
- Centre for Regenerative Medicine "Stefano Ferrari", University of Modena and Reggio Emilia, Modena, Italy
| | - Giulia Zardi
- Department of Statistical Sciences, University of Bologna, Bologna, Italy
| | - Christine Bodemer
- Department of Dermatology, Necker Enfants Malades Hospital, APHP, University Paris Centre, ERN-Skin Network (European Network for Rare Skin Disorders), Paris, France
| | - Cristina Magnoni
- Unit of Dermatology, University of Modena and Reggio Emilia, Modena, Italy
| | - Holm Schneider
- Department of Pediatrics, University Hospital Erlangen, Erlangen, Germany
| | - Michele De Luca
- Holostem Terapie Avanzate, s.r.l, Modena, Italy.,Centre for Regenerative Medicine "Stefano Ferrari", University of Modena and Reggio Emilia, Modena, Italy
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17
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Gonneau C, Wang L, Mitra-Kaushik S, Trampont PC, Litwin V. Progress towards global standardization for quantitative flow cytometry. Bioanalysis 2021; 13:1591-5. [PMID: 34528829 DOI: 10.4155/bio-2021-0148] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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18
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Hernández-López A, Téllez-González MA, Mondragón-Terán P, Meneses-Acosta A. Chimeric Antigen Receptor-T Cells: A Pharmaceutical Scope. Front Pharmacol 2021; 12:720692. [PMID: 34489708 PMCID: PMC8417740 DOI: 10.3389/fphar.2021.720692] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 08/02/2021] [Indexed: 12/18/2022] Open
Abstract
Cancer is among the leading causes of death worldwide. Therefore, improving cancer therapeutic strategies using novel alternatives is a top priority on the contemporary scientific agenda. An example of such strategies is immunotherapy, which is based on teaching the immune system to recognize, attack, and kill malignant cancer cells. Several types of immunotherapies are currently used to treat cancer, including adoptive cell therapy (ACT). Chimeric Antigen Receptors therapy (CAR therapy) is a kind of ATC where autologous T cells are genetically engineered to express CARs (CAR-T cells) to specifically kill the tumor cells. CAR-T cell therapy is an opportunity to treat patients that have not responded to other first-line cancer treatments. Nowadays, this type of therapy still has many challenges to overcome to be considered as a first-line clinical treatment. This emerging technology is still classified as an advanced therapy from the pharmaceutical point of view, hence, for it to be applied it must firstly meet certain requirements demanded by the authority. For this reason, the aim of this review is to present a global vision of different immunotherapies and focus on CAR-T cell technology analyzing its elements, its history, and its challenges. Furthermore, analyzing the opportunity areas for CAR-T technology to become an affordable treatment modality taking the basic, clinical, and practical aspects into consideration.
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Affiliation(s)
- Alejandrina Hernández-López
- Laboratorio 7 Biotecnología Farmacéutica, Facultad de Farmacia, Universidad Autónoma Del Estado de Morelos, UAEM, Cuernavaca, Mexico
| | - Mario A. Téllez-González
- Laboratorio 7 Biotecnología Farmacéutica, Facultad de Farmacia, Universidad Autónoma Del Estado de Morelos, UAEM, Cuernavaca, Mexico
- Coordinación de Investigación, Centro Médico Nacional “20 de Noviembre” ISSSTE, Mexico city, Mexico
| | - Paul Mondragón-Terán
- Coordinación de Investigación, Centro Médico Nacional “20 de Noviembre” ISSSTE, Mexico city, Mexico
| | - Angélica Meneses-Acosta
- Laboratorio 7 Biotecnología Farmacéutica, Facultad de Farmacia, Universidad Autónoma Del Estado de Morelos, UAEM, Cuernavaca, Mexico
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Grzesik P, Warth SC. One-Time Optimization of Advanced T Cell Culture Media Using a Machine Learning Pipeline. Front Bioeng Biotechnol 2021; 9:614324. [PMID: 34336796 PMCID: PMC8320393 DOI: 10.3389/fbioe.2021.614324] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 05/28/2021] [Indexed: 01/04/2023] Open
Abstract
The growing application of cell and gene therapies in humans leads to a need for cell type-optimized culture media. Design of Experiments (DoE) is a successful and well known tool for the development and optimization of cell culture media for bioprocessing. When optimizing culture media for primary cells used in cell and gene therapy, traditional DoE approaches that depend on interpretable models will not always provide reliable predictions due to high donor variability. Here we present the implementation of a machine learning pipeline into the DoE-based design of cell culture media to optimize T cell cultures in one experimental step (one-time optimization). We applied a definitive screening design from the DoE toolbox to screen 12 major media components, resulting in 25 (2k + 1) media formulations. T cells purified from a set of four human donors were cultured for 6 days and cell viability on day 3 and cell expansion on day 6 were recorded as response variables. These data were used as a training set in the machine learning pipeline. In the first step, individual models were created for each donor, evaluated and selected for each response variable, resulting in eight final statistical models (R2 > 0.92, RMSE < 1.5). These statistical models were used to predict T cell viability and expansion for 105 random in silico-generated media formulations for each donor in a grid search approach. With the aim of identifying similar formulations in all donors, the 40 best performing media formulations of each response variable were pooled from all donors (n = 320) and subjected to unsupervised clustering using the k-means algorithm. The median of each media component in each cluster was defined as the cluster media formulation. When these formulations were tested in a new set of donor cells, they not only showed a higher T cell expansion than the reference medium, but also precisely matched the average expansion predicted from the donor models of the training set. In summary, we have shown that the introduction of a machine learning pipeline resulted in a one-time optimized T cell culture medium and is advantageous when working with heterogeneous biological material.
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Affiliation(s)
- Paul Grzesik
- R&D Cell Culture Systems, CellGenix GmbH, Freiburg, Germany
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20
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Shi J, Chen X, Diao J, Jiang L, Li L, Li S, Liang W, Jin X, Wang Y, Wong C, Zhang XT, Tse FLS. Bioanalysis in the Age of New Drug Modalities. AAPS J 2021; 23:64. [PMID: 33942188 PMCID: PMC8093172 DOI: 10.1208/s12248-021-00594-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 04/09/2021] [Indexed: 12/14/2022]
Abstract
In the absence of regulatory guidelines for the bioanalysis of new drug modalities, many of which contain multiple functional domains, bioanalytical strategies have been carefully designed to characterize the intact drug and each functional domain in terms of quantity, functionality, biotransformation, and immunogenicity. The present review focuses on the bioanalytical challenges and considerations for RNA-based drugs, bispecific antibodies and multi-domain protein therapeutics, prodrugs, gene and cell therapies, and fusion proteins. Methods ranging from the conventional ligand binding assays and liquid chromatography-mass spectrometry assays to quantitative polymerase chain reaction or flow cytometry often used for oligonucleotides and cell and gene therapies are discussed. Best practices for method selection and validation are proposed as well as a future perspective to address the bioanalytical needs of complex modalities.
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Affiliation(s)
- Jing Shi
- Bioanalytical Services Department, WuXi AppTec, 288 Fute Zhong Road, Waigaoqiao, Shanghai, 200131, China.
| | - Xuesong Chen
- Bioanalytical Services Department, WuXi AppTec, 288 Fute Zhong Road, Waigaoqiao, Shanghai, 200131, China
| | - Jianbo Diao
- Bioanalytical Services Department, WuXi AppTec, 288 Fute Zhong Road, Waigaoqiao, Shanghai, 200131, China
| | - Liying Jiang
- Bioanalytical Services Department, WuXi AppTec, 288 Fute Zhong Road, Waigaoqiao, Shanghai, 200131, China
| | - Lan Li
- Bioanalytical Services Department, WuXi AppTec, 288 Fute Zhong Road, Waigaoqiao, Shanghai, 200131, China
| | - Stephen Li
- Bioanalytical Services Department, WuXi AppTec, 288 Fute Zhong Road, Waigaoqiao, Shanghai, 200131, China
| | - Wenzhong Liang
- Bioanalytical Services Department, WuXi AppTec, 288 Fute Zhong Road, Waigaoqiao, Shanghai, 200131, China
| | - Xiaoying Jin
- Bioanalytical Services Department, WuXi AppTec, 288 Fute Zhong Road, Waigaoqiao, Shanghai, 200131, China
| | - Yonghui Wang
- Bioanalytical Services Department, WuXi AppTec, 288 Fute Zhong Road, Waigaoqiao, Shanghai, 200131, China
| | - Colton Wong
- Bioanalytical Services Department, WuXi AppTec, 288 Fute Zhong Road, Waigaoqiao, Shanghai, 200131, China
| | - Xiaolong Tom Zhang
- Bioanalytical Services Department, WuXi AppTec, 288 Fute Zhong Road, Waigaoqiao, Shanghai, 200131, China
| | - Francis L S Tse
- Bioanalytical Services Department, WuXi AppTec, 288 Fute Zhong Road, Waigaoqiao, Shanghai, 200131, China
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21
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Abstract
Lentiviral vectors (LVs) are potent tools for the delivery of genes of interest into mammalian cells and are now commonly utilised within the growing field of cell and gene therapy for the treatment of monogenic diseases and adoptive therapies such as chimeric antigen T-cell (CAR-T) therapy. This is a comprehensive review of the individual bioprocess operations employed in LV production. We highlight the role of envelope proteins in vector design as well as their impact on the bioprocessing of lentiviral vectors. An overview of the current state of these operations provides opportunities for bioprocess discovery and improvement with emphasis on the considerations for optimal and scalable processing of LV during development and clinical production. Upstream culture for LV generation is described with comparisons on the different transfection methods and various bioreactors for suspension and adherent producer cell cultivation. The purification of LV is examined, evaluating different sequences of downstream process operations for both small- and large-scale production requirements. For scalable operations, a key focus is the development in chromatographic purification in addition to an in-depth examination of the application of tangential flow filtration. A summary of vector quantification and characterisation assays is also presented. Finally, the assessment of the whole bioprocess for LV production is discussed to benefit from the broader understanding of potential interactions of the different process options. This review is aimed to assist in the achievement of high quality, high concentration lentiviral vectors from robust and scalable processes.
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Affiliation(s)
- Christopher Perry
- The Advanced Centre for Biochemical Engineering, Department of Biochemical Engineering, University College London, Gower St, London WC1E 6BT, UK;
- Division of Advanced Therapies, National Institute for Biological Standards and Control, South Mimms EN6 3QG, UK
| | - Andrea C. M. E. Rayat
- The Advanced Centre for Biochemical Engineering, Department of Biochemical Engineering, University College London, Gower St, London WC1E 6BT, UK;
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22
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Grand Moursel L, Visser M, Servant G, Durmus S, Zuurmond AM. CRISPRing future medicines. Expert Opin Drug Discov 2021; 16:463-473. [PMID: 33322954 DOI: 10.1080/17460441.2021.1850687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Introduction: The ability to engineer mammalian genomes in a quick and cost-effective way has led to rapid adaptation of CRISPR technology in biomedical research. CRISPR-based engineering has the potential to accelerate drug discovery, to support the reduction of high attrition rate in drug development and to enhance development of cell and gene-based therapies.Areas covered: How CRISPR technology is transforming drug discovery is discussed in this review. From target identification to target validation in both in vitro and in vivo models, CRISPR technology is positively impacting the early stages of drug development by providing a straightforward way to genome engineering. This property also attracted attention for CRISPR application in the cell and gene therapy area.Expert opinion: CRISPR technology is rapidly becoming the preferred tool for genome engineering and nowadays it is hard to imagine the drug discovery pipeline without this technology. With the years to come, CRISPR technology will undoubtedly be further refined and will flourish into a mature technology that will play a key role in supporting genome engineering requirements in the drug discovery pipeline as well as in cell and gene therapy development.
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Affiliation(s)
| | - Mijke Visser
- Charles River Laboratories, Leiden, The Netherlands
| | | | - Selvi Durmus
- Charles River Laboratories, Leiden, The Netherlands
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DiGiandomenico K, Dunn E, Sadowski C, Godwin S, Keeler M, Preston F, Niven P, Ramsey P, Hay H. Environmental Health and Biosafety Risk Assessment Guidance for Commercial-Scale Cell and Gene Therapy Manufacturing. Appl Biosaf 2020; 25:201-213. [PMID: 36032393 PMCID: PMC9134635 DOI: 10.1177/1535676020946235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
INTRODUCTION This article aims to identify best practices, improve risk controls, and aid regulatory agencies in developing guidance for environmental and biosafety risk assessment for commercial-scale cell and gene therapy manufacturing. METHODS A cross-functional team should start with hazard classification and testing requirements for materials used or generated by the process and process hazard characterization. RESULTS The team develops a safety profile of the process to mitigate risks, including: product biological contamination risk and process controls, including raw materials, facilities, operator and environmental controls, and method of detection;a technical review of the process to evaluate the operational and engineering controls;monitoring systems to mitigate the risk of failure and/or breach of the system, preventing the release of material to the facility or operator exposure;site sanitization strategy and facility containment measures, including engineering designs, air handling systems, spill containment measures, surface cleanability, waste flows, and decontamination practices;a review of site practices, including process, employee, material and waste flows, staff training, controlled access, operator gowning, and emergency response plans/measures. DISCUSSION The cross-functional team should regularly reconvene to provide solutions for enhanced process control, process life-cycle management, monitor assumptions, and track performance. The plan must be revised following any relevant failure event or process change. CONCLUSION A risk assessment template is shared to bring to the reader's attention the complexity of commercial-scale manufacturing, areas to assess, potential questions to ask, and other pertinent parties who may input to the risk assessment.
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Affiliation(s)
| | - Erin Dunn
- FUJIFILM Diosynth Biotechnologies, College Station, TX, USA
| | - Cari Sadowski
- FUJIFILM Diosynth Biotechnologies, College Station, TX, USA
| | | | | | | | - Patrick Niven
- Janssen Pharmaceuticals, Inc., Spring House, PA, USA
| | | | - Helen Hay
- BioPhorum Operations Group Limited, Sheffield, UK
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Reddy LVK, Murugan D, Mullick M, Begum Moghal ET, Sen D. Recent Approaches for Angiogenesis in Search of Successful Tissue Engineering and Regeneration. Curr Stem Cell Res Ther 2020; 15:111-134. [PMID: 31682212 DOI: 10.2174/1574888x14666191104151928] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/28/2019] [Accepted: 08/06/2019] [Indexed: 02/06/2023]
Abstract
Angiogenesis plays a central role in human physiology from reproduction and fetal development to wound healing and tissue repair/regeneration. Clinically relevant therapies are needed for promoting angiogenesis in order to supply oxygen and nutrients after transplantation, thus relieving the symptoms of ischemia. Increase in angiogenesis can lead to the restoration of damaged tissues, thereby leading the way for successful tissue regeneration. Tissue regeneration is a broad field that has shown the convergence of various interdisciplinary fields, wherein living cells in conjugation with biomaterials have been tried and tested on to the human body. Although there is a prevalence of various approaches that hypothesize enhanced tissue regeneration via angiogenesis, none of them have been successful in gaining clinical relevance. Hence, the current review summarizes the recent cell-based and cell free (exosomes, extracellular vesicles, micro-RNAs) therapies, gene and biomaterial-based approaches that have been used for angiogenesis-mediated tissue regeneration and have been applied in treating disease models like ischemic heart, brain stroke, bone defects and corneal defects. This review also puts forward a concise report of the pre-clinical and clinical studies that have been performed so far; thereby presenting the credible impact of the development of biomaterials and their 3D concepts in the field of tissue engineering and regeneration, which would lead to the probable ways for heralding the successful future of angiogenesis-mediated approaches in the greater perspective of tissue engineering and regenerative medicine.
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Affiliation(s)
- Lekkala Vinod Kumar Reddy
- Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Durai Murugan
- Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Madhubanti Mullick
- Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Erfath Thanjeem Begum Moghal
- Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Dwaipayan Sen
- Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India.,University of Georgia, Athens, GA, United States
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Scott M, Clarke D, Lipsitz Y, Brandwein H, Allickson J, Alzebdeh D, Aleksic S, Kraft C, Lhu L, Cornetta K. Transitioning from development to commercial: risk-based guidance for critical materials management in cell therapies. Cytotherapy 2020; 22:669-676. [PMID: 32713719 DOI: 10.1016/j.jcyt.2020.06.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 06/07/2020] [Accepted: 06/24/2020] [Indexed: 11/25/2022]
Abstract
A key hurdle to ensuring patient access to cell and gene therapies (CGTs) and continued growth of the industry is the management of raw materials. The combination of rapid growth, individual product and process complexity and limited industry-specific guidance or awareness presents non-obvious risk mitigation challenges for transitioning from development to clinical application. Understanding, assessing and mitigating the varied raw material risks for CGT products during product and clinical development are critical for ensuring smooth transitions into commercialization and for preventing interruption of product supply to patients. This article presents a risk-based approach driven by concerns for patient safety that can help focus and coordinate efforts to address the most critical risk factors. Highlighted are some of the highest risk materials common to the manufacture of many CGTs, including the primary starting material, culture media, reagents and single-use components. Using a hypothetical gene-edited cell therapy as an example, we describe the general manufacturing process and subsequently incorporate the described methodology to perform a sample risk assessment. The practical approach described herein is intended to assist CGT manufacturers and suppliers in actively assessing materials early in development to provide a basic starting point for mitigating risks experienced when translating CGT products for clinical and long-term commercial application.
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Affiliation(s)
- Michael Scott
- International Society for Cellular Therapy Process and Product Development Subcommittee, Vancouver, Canada; BlueRock Therapeutics, Toronto, Canada
| | - Dominic Clarke
- International Society for Cellular Therapy Process and Product Development Subcommittee, Vancouver, Canada; HemaCare Corporation, Northridge, California, USA
| | - Yonatan Lipsitz
- International Society for Cellular Therapy Process and Product Development Subcommittee, Vancouver, Canada; Sana Biotechnology, Cambridge, Massachusetts, USA
| | - Harvey Brandwein
- International Society for Cellular Therapy Process and Product Development Subcommittee, Vancouver, Canada; Cook Myosite, Indianapolis, Indiana, USA
| | - Julie Allickson
- International Society for Cellular Therapy Process and Product Development Subcommittee, Vancouver, Canada; Wake Forest Institute for Regenerative Medicine, Winston-Salem, North Carolina, USA
| | - Dalia Alzebdeh
- Wake Forest Institute for Regenerative Medicine, Winston-Salem, North Carolina, USA
| | - Sasha Aleksic
- International Society for Cellular Therapy Process and Product Development Subcommittee, Vancouver, Canada; Fujifilm Irvine Scientific, Irvine, California, USA
| | - Crystal Kraft
- International Society for Cellular Therapy Process and Product Development Subcommittee, Vancouver, Canada; West Pharmaceuticals, Exton, Pennsylvania, USA
| | - Lexan Lhu
- International Society for Cellular Therapy Process and Product Development Subcommittee, Vancouver, Canada; PBS Biotech, Camarillo, California, USA
| | - Kenneth Cornetta
- Indiana University School of Medicine, Indianapolis, Indiana, USA
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Dubé K, Simoni J, Louella M, Sylla L, Mohamed ZH, Patel H, Luter S, Collier AC. Acceptability of Cell and Gene Therapy for Curing HIV Infection Among People Living with HIV in the Northwestern United States: A Qualitative Study. AIDS Res Hum Retroviruses 2019; 35:649-659. [PMID: 30990052 DOI: 10.1089/aid.2019.0021] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Multiple strategies to cure HIV infection are under investigation, including cell and gene therapy (C>) approaches. Research, and ultimately treatment, with these novel strategies will require patients' willingness to participate. To elicit the perspectives of people living with HIV specific to these novel approaches, we conducted 4 focus group discussions with a diverse group of 19 English-speaking men and women living with HIV in care at a large academic HIV clinic in the northwestern United States. Thematic analysis indicated participants expressed initial fear about C> research. They articulated specific concerns about risks, including analytical treatment interruptions, and thought only a person in desperate straits would participate. They voiced significant mistrust of research in general and believed there was already a cure from HIV that was being withheld from the poor. Overall, they were satisfied with their health and quality of life on antiretroviral therapy. These findings suggest the importance of community engagement and educational efforts about C> for HIV cure to ensure optimal collaborative partnerships.
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Affiliation(s)
- Karine Dubé
- UNC Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Jane Simoni
- Department of Global Health, University of Washington, Seattle, Washington
- Department of Psychology, University of Washington, Seattle, Washington
| | - Michael Louella
- defeatHIV Community Advisory Board (CAB), Seattle, Washington
- University of Washington Fred Hutchinson Cancer Research Center, Seattle, Washington
- Department of Medicine, University of Washington School of Medicine, Seattle, Washington
| | - Laurie Sylla
- defeatHIV Community Advisory Board (CAB), Seattle, Washington
- Department of Medicine, University of Washington School of Medicine, Seattle, Washington
| | - Zahra H. Mohamed
- Department of Global Health, University of Washington, Seattle, Washington
| | - Hursch Patel
- UNC Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Stuart Luter
- UNC Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Ann C. Collier
- Department of Medicine, University of Washington School of Medicine, Seattle, Washington
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De Rosa L, Secone Seconetti A, De Santis G, Pellacani G, Hirsch T, Rothoeft T, Teig N, Pellegrini G, Bauer JW, De Luca M. Laminin 332-Dependent YAP Dysregulation Depletes Epidermal Stem Cells in Junctional Epidermolysis Bullosa. Cell Rep 2019; 27:2036-2049.e6. [PMID: 31091444 DOI: 10.1016/j.celrep.2019.04.055] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 03/12/2019] [Accepted: 04/10/2019] [Indexed: 01/09/2023] Open
Abstract
Laminin 332-deficient junctional epidermolysis bullosa (JEB) is a severe genetic skin disease. JEB is marked by epidermal stem cell depletion, the origin of which is unknown. We show that dysregulation of the YAP and TAZ pathway underpins such stem cell depletion. Laminin 332-mediated YAP activity sustains human epidermal stem cells, detected as holoclones. Ablation of YAP selectively depletes holoclones, while enforced YAP blocks conversion of stem cells into progenitors and indefinitely extends the keratinocyte lifespan. YAP is dramatically decreased in JEB keratinocytes, which contain only phosphorylated, inactive YAP. In normal keratinocytes, laminin 332 and α6β4 ablation abolish YAP activity and recapitulate the JEB phenotype. In JEB keratinocytes, laminin 332-gene therapy rescues YAP activity and epidermal stem cells in vitro and in vivo. In JEB cells, enforced YAP recapitulates laminin 332-gene therapy, thus uncoupling adhesion from proliferation in epidermal stem cells. This work has important clinical implication for ex vivo gene therapy of JEB.
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Affiliation(s)
- Laura De Rosa
- Centre for Regenerative Medicine "Stefano Ferrari," Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Alessia Secone Seconetti
- Centre for Regenerative Medicine "Stefano Ferrari," Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Giorgio De Santis
- Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Giovanni Pellacani
- Department of Surgery, Medicine, Dentistry, and Morphological Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Tobias Hirsch
- Department of Plastic Surgery, Burn Centre, BG University Hospital Bergmannsheil, Ruhr-University Bochum, Germany
| | - Tobias Rothoeft
- Department of Neonatology and Pediatric Intensive Care, University Children's Hospital, Ruhr-University Bochum, Germany
| | - Norbert Teig
- Department of Neonatology and Pediatric Intensive Care, University Children's Hospital, Ruhr-University Bochum, Germany
| | - Graziella Pellegrini
- Centre for Regenerative Medicine "Stefano Ferrari," Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy; Department of Surgery, Medicine, Dentistry, and Morphological Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Johann W Bauer
- EB House Austria and Department of Dermatology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - Michele De Luca
- Centre for Regenerative Medicine "Stefano Ferrari," Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy.
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Olgasi C, Talmon M, Merlin S, Cucci A, Richaud-Patin Y, Ranaldo G, Colangelo D, Di Scipio F, Berta GN, Borsotti C, Valeri F, Faraldi F, Prat M, Messina M, Schinco P, Lombardo A, Raya A, Follenzi A. Patient-Specific iPSC-Derived Endothelial Cells Provide Long-Term Phenotypic Correction of Hemophilia A. Stem Cell Reports 2018; 11:1391-1406. [PMID: 30416049 PMCID: PMC6294075 DOI: 10.1016/j.stemcr.2018.10.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 10/12/2018] [Accepted: 10/15/2018] [Indexed: 11/15/2022] Open
Abstract
We generated patient-specific disease-free induced pluripotent stem cells (iPSCs) from peripheral blood CD34+ cells and differentiated them into functional endothelial cells (ECs) secreting factor VIII (FVIII) for gene and cell therapy approaches to cure hemophilia A (HA), an X-linked bleeding disorder caused by F8 mutations. iPSCs were transduced with a lentiviral vector carrying FVIII transgene driven by an endothelial-specific promoter (VEC) and differentiated into bona fide ECs using an optimized protocol. FVIII-expressing ECs were intraportally transplanted in monocrotaline-conditioned non-obese diabetic (NOD) severe combined immune-deficient (scid)-IL2rγ null HA mice generating a chimeric liver with functional human ECs. Transplanted cells engrafted and proliferated in the liver along sinusoids, in the long term showed stable therapeutic FVIII activity (6%). These results demonstrate that the hemophilic phenotype can be rescued by transplantation of ECs derived from HA FVIII-corrected iPSCs, confirming the feasibility of cell-reprogramming strategy in patient-derived cells as an approach for HA gene and cell therapy.
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Affiliation(s)
- Cristina Olgasi
- Department of Health Sciences, Università del Piemonte Orientale "A. Avogadro", 28100 Novara, Italy
| | - Maria Talmon
- Department of Health Sciences, Università del Piemonte Orientale "A. Avogadro", 28100 Novara, Italy
| | - Simone Merlin
- Department of Health Sciences, Università del Piemonte Orientale "A. Avogadro", 28100 Novara, Italy
| | - Alessia Cucci
- Department of Health Sciences, Università del Piemonte Orientale "A. Avogadro", 28100 Novara, Italy
| | - Yvonne Richaud-Patin
- Center of Regenerative Medicine in Barcelona (CMRB), Hospital Durans Reynals, Hospitalet de Llobregat, 08908 Barcelona, Spain; Center for Networked Biomedical Research on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
| | - Gabriella Ranaldo
- Department of Health Sciences, Università del Piemonte Orientale "A. Avogadro", 28100 Novara, Italy
| | - Donato Colangelo
- Department of Health Sciences, Università del Piemonte Orientale "A. Avogadro", 28100 Novara, Italy
| | | | | | - Chiara Borsotti
- Department of Health Sciences, Università del Piemonte Orientale "A. Avogadro", 28100 Novara, Italy
| | - Federica Valeri
- A.O.U. Città della Salute e della Scienza, 10126 Torino, Italy
| | | | - Maria Prat
- Department of Health Sciences, Università del Piemonte Orientale "A. Avogadro", 28100 Novara, Italy
| | - Maria Messina
- A.O.U. Città della Salute e della Scienza, 10126 Torino, Italy
| | | | - Angelo Lombardo
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), Milan, Italy; San Raffaele Scientific Institute, 20132 Milan, Italy; Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Angel Raya
- Center of Regenerative Medicine in Barcelona (CMRB), Hospital Durans Reynals, Hospitalet de Llobregat, 08908 Barcelona, Spain; Center for Networked Biomedical Research on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
| | - Antonia Follenzi
- Department of Health Sciences, Università del Piemonte Orientale "A. Avogadro", 28100 Novara, Italy.
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29
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Kusinitz M, Braunstein E, Wilson CA. Advancing Public Health Using Regulatory Science to Enhance Development and Regulation of Medical Products: Food and Drug Administration Research at the Center for Biologics Evaluation and Research. Front Med (Lausanne) 2017; 4:71. [PMID: 28660187 PMCID: PMC5466996 DOI: 10.3389/fmed.2017.00071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 05/23/2017] [Indexed: 01/02/2023] Open
Abstract
Center for Biologics Evaluation and Research enhances and supports regulatory decision-making and policy development. This work contributes to our regulatory mission, advances medical product development, and supports Food and Drug Administration’s regulatory response to public health crises. This review presents some examples of our diverse scientific work undertaken in recent years to support our regulatory and public health mission.
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30
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Tóth A, Fodor K, Blazsó P, Cserpán I, Praznovszky T, Tubak V, Udvardy A, Hadlaczky G, Katona RL. Generation of induced pluripotent stem cells by using a mammalian artificial chromosome expression system. Acta Biol Hung 2014; 65:331-45. [PMID: 25194736 DOI: 10.1556/abiol.65.2014.3.9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Direct reprogramming of mouse fibroblasts into induced pluripotent stem cells (iPS) was achieved recently by overexpression of four transcription factors encoded by retroviral vectors. Most of the virus vectors, however, may cause insertional mutagenesis in the host genome and may also induce tumor formation. Therefore, it is very important to discover novel and safer, non-viral reprogramming methods. Here we describe the reprogramming of somatic cells into iPS cells by a novel protein-based technique. Engineered Oct4, Sox2 and Klf4 transcription factors carrying an N-terminal Flag-tag and a C-terminal polyarginine tail were synthesized by a recently described mammalian artificial chromosome expression system (ACEs). This system is suitable for the high-level production of recombinant proteins in mammalian tissue culture cells. Recombinant proteins produced in this system contain all the post-translational modifications essential for the stability and the authentic function of the proteins. The engineered Oct4, Sox2 and Klf4 proteins efficiently induced the reprogramming of mouse embryonic fibroblasts by means of protein transduction. This novel method allows for the generation of iPS cells, which may be suitable for therapeutic applications in the future.
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Affiliation(s)
- Anna Tóth
- Hungarian Academy of Sciences Institute of Genetics, Biological Research Centre Temesvári krt. 62 H-6726 Szeged Hungary
| | - Katalin Fodor
- Hungarian Academy of Sciences Institute of Genetics, Biological Research Centre Temesvári krt. 62 H-6726 Szeged Hungary
| | - P Blazsó
- Hungarian Academy of Sciences Institute of Genetics, Biological Research Centre Temesvári krt. 62 H-6726 Szeged Hungary
| | - I Cserpán
- Hungarian Academy of Sciences Institute of Genetics, Biological Research Centre Temesvári krt. 62 H-6726 Szeged Hungary
| | - Tünde Praznovszky
- Hungarian Academy of Sciences Institute of Genetics, Biological Research Centre Temesvári krt. 62 H-6726 Szeged Hungary
| | - V Tubak
- Hungarian Academy of Sciences Institute of Genetics, Biological Research Centre Temesvári krt. 62 H-6726 Szeged Hungary
| | - A Udvardy
- Hungarian Academy of Sciences Institute of Biochemistry, Biological Research Centre Temesvári krt. 62 H-6726 Szeged Hungary
| | - Gy Hadlaczky
- Hungarian Academy of Sciences Institute of Genetics, Biological Research Centre Temesvári krt. 62 H-6726 Szeged Hungary
| | - R L Katona
- Hungarian Academy of Sciences Institute of Genetics, Biological Research Centre Temesvári krt. 62 H-6726 Szeged Hungary
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