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Słyk Ż, Wrzesień R, Barszcz S, Gawrychowski K, Małecki M. Adeno-associated virus vector hydrogel formulations for brain cancer gene therapy applications. Biomed Pharmacother 2024; 170:116061. [PMID: 38154269 DOI: 10.1016/j.biopha.2023.116061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 12/30/2023] Open
Abstract
Gelatin-based formulations are utilized in neurosurgical procedures, with Medisponge® serving as an illustration of a secure and biocompatible hemostatic formulation. Noteworthy are combined hemostatic products that integrate pharmacological agents with gelatin. Gelatin matrices, which host biologically active substances, provide a platform for a variety of molecules. Biopolymers function as carriers for chemicals and genes, a facet particularly pertinent in brain cancer therapy, as gene therapy complement conventional approaches. The registration of Zolgensma underscores the efficacy of rAAV vectors in therapeutic gene delivery to the CNS. rAAVs, renowned for their safety, stability, and neuron-targeting capabilities, predominate in CNS gene therapy studies. The effectiveness of rAAV vector therapy varies based on the serotype and administration route. Local gene therapy employing hydrogel (e.g., post-tumor resection) enables the circumvention of the blood-brain barrier and restricts formulation diffusion. This study formulates gelatin rAAV gene formulations and evaluates vector transduction potential. Transduction efficiency was assessed using ex vivo mouse brains and in vitro cancer cell lines. In vitro, the transduction of rAAV vectors in gelatin matrices was quantified through qPCR, measuring the itr and Gfp expression. rAAVDJ and rAAV2 demonstrated superior transduction in ex vivo and in vitro models. Among the cell lines tested (Hs683, B16-F10, NIH:OVCAR-3), gelatin matrix F1 exhibited selective transduction, particularly with Hs683 human glioma cells, surpassing the performance Medisponge®. This research highlights the exploration of local brain cancer therapy, emphasizing the potential of gelatin as an rAAV vector carrier for gene therapy. The functional transduction activity of gelatin rAAV formulations is demonstrated.
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Affiliation(s)
- Żaneta Słyk
- Department of Applied Pharmacy, Faculty of Pharmacy, Medical University of Warsaw, Warsaw, Poland; Laboratory of Gene Therapy, Faculty of Pharmacy, Medical University of Warsaw, Warsaw, Poland.
| | - Robert Wrzesień
- Central Laboratory of Experimental Animals, Center for Preclinical Research and Technology, Medical University of Warsaw, Warsaw, Poland
| | - Sławomir Barszcz
- Department of Neurosurgery, Children's Clinical Hospital, University Clinical Centre of the Medical University of Warsaw, Warsaw, Poland
| | - Krzysztof Gawrychowski
- Department of Applied Pharmacy, Faculty of Pharmacy, Medical University of Warsaw, Warsaw, Poland
| | - Maciej Małecki
- Department of Applied Pharmacy, Faculty of Pharmacy, Medical University of Warsaw, Warsaw, Poland; Laboratory of Gene Therapy, Faculty of Pharmacy, Medical University of Warsaw, Warsaw, Poland
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Bieńkowska-Tokarczyk A, Stelmaszczyk-Emmel A, Demkow U, Małecki M. Hyperthermia Enhances Adeno-Associated Virus Vector Transduction Efficiency in Melanoma Cells. Curr Issues Mol Biol 2023; 45:8519-8538. [PMID: 37886980 PMCID: PMC10604982 DOI: 10.3390/cimb45100537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/10/2023] [Accepted: 10/12/2023] [Indexed: 10/28/2023] Open
Abstract
Gene therapy perfectly fits in the current needs of medicine for patients with melanoma. One of the major challenges of gene therapy is to increase gene transfer. The role of hyperthermia in the improvement of AAV (adeno-associated virus) transduction efficiency has been indicated. The aim of the present study was to assess the transduction efficacy of melanoma cell lines (A375, G-361, and SK-MEL-1) with the use of the rAAV/DJ mosaic vector under hyperthermia conditions. The analysis of changes in the transduction efficacy and expression of HSPs (heat shock proteins) and receptors for AAV was performed. The transduction was performed at 37 °C and at 43 °C (1 h). Hyperthermia enhanced gene transfer in all the tested cell lines. The most efficient transducing cell line under hyperthermia was A375 (increase by 17%). G361 and SK-MEL-1 cells showed an increase of 7%. The changes in the expression of the AAV receptors and HSPs after hyperthermia were observed. A key role in the improvement of gene transfer may be played by AAVR, HSPB1, HSP6, DNAJC4, HSPD1, HSPA8, HSPA9, HSP90AB1, and AHSA1. This study showed the possibility of the use of hyperthermia as a factor enabling the stimulation of cell transduction with rAAV vectors, thereby providing tools for the improvement in the efficacy of gene therapy based on rAAV.
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Affiliation(s)
- Alicja Bieńkowska-Tokarczyk
- Department of Applied Pharmacy, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Street, 02-097 Warsaw, Poland
| | - Anna Stelmaszczyk-Emmel
- Department of Laboratory Medicine and Clinical Immunology of Developmental Age, Faculty of Medicine, Medical University of Warsaw, 63a Żwirki i Wigury Street, 02-091 Warsaw, Poland
| | - Urszula Demkow
- Department of Laboratory Medicine and Clinical Immunology of Developmental Age, Faculty of Medicine, Medical University of Warsaw, 63a Żwirki i Wigury Street, 02-091 Warsaw, Poland
| | - Maciej Małecki
- Department of Applied Pharmacy, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Street, 02-097 Warsaw, Poland
- Laboratory of Gene Therapy, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Street, 02-097 Warsaw, Poland
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Doan TNK, Le MD, Bajrovic I, Celentano L, Krause C, Balyan HG, Svancarek A, Mote A, Tretiakova A, Jude Samulski R, Croyle MA. Thermostability and in vivo performance of AAV9 in a film matrix. COMMUNICATIONS MEDICINE 2022; 2:148. [PMID: 36414773 PMCID: PMC9681776 DOI: 10.1038/s43856-022-00212-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 11/08/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Adeno-associated virus (AAV) vectors are stored and shipped frozen which poses logistic and economic barriers for global access to these therapeutics. To address this issue, we developed a method to stabilize AAV serotype 9 (AAV9) in a film matrix that can be stored at ambient temperature and administered by systemic injection. METHODS AAV9 expressing the luciferase transgene was mixed with formulations, poured into molds and films dried under aseptic conditions. Films were packaged in individual particle-free bags with foil overlays and stored at various temperatures under controlled humidity. Recovery of AAV9 from films was determined by serial dilution of rehydrated film in media and infection of HeLa RC32 cells. Luciferase expression was compared to that of films rehydrated immediately after drying. Biodistribution of vector was determined by in vivo imaging and quantitative real-time PCR. Residual moisture in films was determined by Karl Fischer titration. RESULTS AAV9 embedded within a film matrix and stored at 4 °C for 5 months retained 100% of initial titer. High and low viscosity formulations maintained 90 and 85% of initial titer after 6 months at 25 °C respectively. AAV was not detected after 4 months in a Standard Control Formulation under the same conditions. Biodistribution and transgene expression of AAV stored in film at 25 or 4 °C were as robust as vector stored at -80 °C in a Standard Control Formulation. CONCLUSIONS These results suggest that storage of AAV in a film matrix facilitates easy transport of vector to remote sites without compromising in vivo performance.
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Affiliation(s)
- Trang Nguyen Kieu Doan
- The University of Texas at Austin College of Pharmacy, Division of Molecular Pharmaceutics and Drug Delivery, Austin, TX, 78712, USA
| | - Matthew D Le
- The University of Texas at Austin College of Pharmacy, Division of Molecular Pharmaceutics and Drug Delivery, Austin, TX, 78712, USA
| | - Irnela Bajrovic
- The University of Texas at Austin College of Pharmacy, Division of Molecular Pharmaceutics and Drug Delivery, Austin, TX, 78712, USA
- AskBio 20T.W. Alexander Drive, Suite 110, Durham, NC, 27709, USA
| | - Lorne Celentano
- AskBio 20T.W. Alexander Drive, Suite 110, Durham, NC, 27709, USA
| | - Charles Krause
- AskBio 20T.W. Alexander Drive, Suite 110, Durham, NC, 27709, USA
| | | | - Abbie Svancarek
- AskBio 20T.W. Alexander Drive, Suite 110, Durham, NC, 27709, USA
| | - Angela Mote
- AskBio 20T.W. Alexander Drive, Suite 110, Durham, NC, 27709, USA
| | - Anna Tretiakova
- AskBio 20T.W. Alexander Drive, Suite 110, Durham, NC, 27709, USA
| | - R Jude Samulski
- AskBio 20T.W. Alexander Drive, Suite 110, Durham, NC, 27709, USA
- Jurata Thin Film, 2450 Holcombe Blvd., Suite J, Houston, TX, 77021, USA
- Department of Pharmacology, University of North Carolina, 7119 Thurston Bowles Bldg. 104 Manning Dr., Chapel Hill, NC, 27599, USA
| | - Maria A Croyle
- The University of Texas at Austin College of Pharmacy, Division of Molecular Pharmaceutics and Drug Delivery, Austin, TX, 78712, USA.
- John R. LaMontagne Center for Infectious Disease, The University of Texas at Austin, Austin, TX, USA.
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