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All Outputs (19)

Combined biolistic and cell penetrating peptide delivery for the development of scalable intradermal DNA vaccines (2024)
Journal Article
So, R. B., Li, G., Brentville, V., Daly, J. M., & Dixon, J. E. (2024). Combined biolistic and cell penetrating peptide delivery for the development of scalable intradermal DNA vaccines. Journal of Controlled Release, 367, 209-222. https://doi.org/10.1016/j.jconrel.2024.01.031

Physical-based gene delivery via biolistic methods (such as the Helios gene gun) involve precipitation of nucleic acids onto microparticles and direct transfection through cell membranes of exposed tissue (e.g. skin) by high velocity acceleration. Th... Read More about Combined biolistic and cell penetrating peptide delivery for the development of scalable intradermal DNA vaccines.

Effects of Microenvironment and Dosing on Efficiency of Enhanced Cell Penetrating Peptide Nonviral Gene Delivery (2024)
Journal Article
Dixon, J. E., Wellington, V., Elnima, A., & Eltaher, H. M. (2024). Effects of Microenvironment and Dosing on Efficiency of Enhanced Cell Penetrating Peptide Nonviral Gene Delivery. ACS Omega, 9(4), 5014-5023. https://doi.org/10.1021/acsomega.3c09306

Transfection, defined as functional delivery of cell-internalized nucleic acids, is dependent on many factors linked to formulation, vector, cell type, and microenvironmental culture conditions. We previously developed a technology termed glycosamino... Read More about Effects of Microenvironment and Dosing on Efficiency of Enhanced Cell Penetrating Peptide Nonviral Gene Delivery.

Orally-delivered insulin-peptide nanocomplexes enhance transcytosis from cellular depots and improve diabetic blood glucose control (2023)
Journal Article
Rehmani, S., McLaughlin, C. M., Eltaher, H. M., Moffett, R. C., Flatt, P. R., & Dixon, J. E. (2023). Orally-delivered insulin-peptide nanocomplexes enhance transcytosis from cellular depots and improve diabetic blood glucose control. Journal of Controlled Release, 360, 93-109. https://doi.org/10.1016/j.jconrel.2023.06.006

Insulin regulates blood glucose levels, and is the mainstay for the treatment of type-1 diabetes and type-2 when other drugs provide inadequate control. Therefore, effective oral Insulin delivery would be a significant advance in drug delivery. Herei... Read More about Orally-delivered insulin-peptide nanocomplexes enhance transcytosis from cellular depots and improve diabetic blood glucose control.

Direct contact-mediated non-viral gene therapy using thermo-sensitive hydrogel-coated dressings (2022)
Journal Article
Eltaher, H. M., Blokpoel Ferreras, L. A., Jalal, A. R., & Dixon, J. (2022). Direct contact-mediated non-viral gene therapy using thermo-sensitive hydrogel-coated dressings. Biomaterials Advances, 143, Article 213177. https://doi.org/10.1016/j.bioadv.2022.213177

Nanotechnologies are being increasingly applied as systems for peptide and nucleic acid macromolecule drug delivery. However systemic targeting of these, or efficient topical and localized delivery remains an issue. A controlled release system that c... Read More about Direct contact-mediated non-viral gene therapy using thermo-sensitive hydrogel-coated dressings.

RAPID INTRAOPERATIVE GENETIC AUGMENTATION OF AUTOGRAFTS FOR RECONSTRUCTIVE SURGERY OF SEVERE TRAUMA (2022)
Presentation / Conference Contribution
Dixon, J., Thi Mai, T., McLaren, J., Ollivere, B., Scammell, B., & Eltaher, H. (2022). RAPID INTRAOPERATIVE GENETIC AUGMENTATION OF AUTOGRAFTS FOR RECONSTRUCTIVE SURGERY OF SEVERE TRAUMA. Tissue Engineering: Parts A, B, and C, 28(S1),

Survivors with severe tissue injury have unmet clinical needs for better bone and soft tissue regeneration. Specifically they have progressive tissue loss due to inflammation, necrosis, infection and the development of critical size bone defects is a... Read More about RAPID INTRAOPERATIVE GENETIC AUGMENTATION OF AUTOGRAFTS FOR RECONSTRUCTIVE SURGERY OF SEVERE TRAUMA.

Development of a Gene-Activated Scaffold Incorporating Multifunctional Cell-Penetrating Peptides for pSDF-1α Delivery for Enhanced Angiogenesis in Tissue Engineering Applications (2022)
Journal Article
Power, R. N., Cavanagh, B. L., Dixon, J. E., Curtin, C. M., & O’Brien, F. J. (2022). Development of a Gene-Activated Scaffold Incorporating Multifunctional Cell-Penetrating Peptides for pSDF-1α Delivery for Enhanced Angiogenesis in Tissue Engineering Applications. International Journal of Molecular Sciences, 23(3), Article 1460. https://doi.org/10.3390/ijms23031460

Non-viral gene delivery has become a popular approach in tissue engineering, as it permits the transient delivery of a therapeutic gene, in order to stimulate tissue repair. However, the efficacy of non-viral delivery vectors remains an issue. Our la... Read More about Development of a Gene-Activated Scaffold Incorporating Multifunctional Cell-Penetrating Peptides for pSDF-1α Delivery for Enhanced Angiogenesis in Tissue Engineering Applications.

Rapidly Transducing and Spatially Localized Magnetofection Using Peptide-Mediated Non-Viral Gene Delivery Based on Iron Oxide Nanoparticles (2020)
Journal Article
Blokpoel Ferreras, L. A., Chan, S. Y., Vazquez Reina, S., & Dixon, J. E. (2021). Rapidly Transducing and Spatially Localized Magnetofection Using Peptide-Mediated Non-Viral Gene Delivery Based on Iron Oxide Nanoparticles. ACS Applied Nano Materials, 4(1), 167-181. https://doi.org/10.1021/acsanm.0c02465

Non-viral delivery systems are generally of low efficiency, which limits their use in gene therapy and editing applications. We previously developed a technology termed glycosaminoglycan (GAG)-binding enhanced transduction (GET) to efficiently delive... Read More about Rapidly Transducing and Spatially Localized Magnetofection Using Peptide-Mediated Non-Viral Gene Delivery Based on Iron Oxide Nanoparticles.

Enhanced Cellular Transduction of Nanoparticles Resistant to Rapidly Forming Plasma Protein Coronas (2020)
Journal Article
Blokpoel Ferreras, L. A., Scott, D., Vazquez Reina, S., Roach, P., Torres, T. E., Goya, G. F., …Dixon, J. E. (2020). Enhanced Cellular Transduction of Nanoparticles Resistant to Rapidly Forming Plasma Protein Coronas. Advanced Biosystems, 4(10), Article 2000162. https://doi.org/10.1002/adbi.202000162

© 2020 The Authors. Published by Wiley-VCH GmbH Nanoparticles (NPs) are increasingly being developed as biomedical platforms for drug/nucleic acid delivery and imaging. However, in biological fluids, NPs interact with a wide range of proteins that fo... Read More about Enhanced Cellular Transduction of Nanoparticles Resistant to Rapidly Forming Plasma Protein Coronas.

Efficient Delivery of Transducing Polymer Nanoparticles for Gene-mediated Induction of Osteogenesis for Bone Regeneration (2020)
Journal Article
Jalal, A. R., & Dixon, J. E. (2020). Efficient Delivery of Transducing Polymer Nanoparticles for Gene-mediated Induction of Osteogenesis for Bone Regeneration. Frontiers in Bioengineering and Biotechnology, 8, Article 849. https://doi.org/10.3389/fbioe.2020.00849

Developing non-viral gene therapy vectors that both protect and functionally deliver nucleic acid cargoes will be vital if gene augmentation and editing strategies are to be effectively combined with advanced regenerative medicine approaches. Current... Read More about Efficient Delivery of Transducing Polymer Nanoparticles for Gene-mediated Induction of Osteogenesis for Bone Regeneration.

In vivo delivery of VEGF RNA and protein to increase osteogenesis and intraosseous angiogenesis (2019)
Journal Article
Rumney, R. M. H., Lanham, S. A., Kanczler, J. M., Kao, A. P., Thiagarajan, L., Dixon, J. E., …Oreffo, R. O. C. (2019). In vivo delivery of VEGF RNA and protein to increase osteogenesis and intraosseous angiogenesis. Scientific Reports, 9(1), Article 17745. https://doi.org/10.1038/s41598-019-53249-4

Deficient bone vasculature is a key component in pathological conditions ranging from developmental skeletal abnormalities to impaired bone repair. Vascularisation is dependent upon vascular endothelial growth factor (VEGF), which drives both angioge... Read More about In vivo delivery of VEGF RNA and protein to increase osteogenesis and intraosseous angiogenesis.

Molecular phenotyping of the surfaceome of migratory chondroprogenitors and mesenchymal stem cells using biotinylation, glycocapture and quantitative LC-MS/MS proteomic analysis (2019)
Journal Article
Matta, C., Boocock, D. J., Fellows, C. R., Miosge, N., Dixon, J. E., Liddell, S., …Mobasheri, A. (2019). Molecular phenotyping of the surfaceome of migratory chondroprogenitors and mesenchymal stem cells using biotinylation, glycocapture and quantitative LC-MS/MS proteomic analysis. Scientific Reports, 9, Article 9018. https://doi.org/10.1038/s41598-019-44957-y

© 2019, The Author(s). The complement of cell surface proteins, collectively referred to as the surfaceome, is a useful indicator of normal differentiation processes, and the development of pathologies such as osteoarthritis (OA). We employed biochem... Read More about Molecular phenotyping of the surfaceome of migratory chondroprogenitors and mesenchymal stem cells using biotinylation, glycocapture and quantitative LC-MS/MS proteomic analysis.

Ex vivo MRI cell tracking of autologous mesenchymal stromal cells in an ovine osteochondral defect model (2019)
Journal Article
Markides, H., Newell, K. J., Rudorf, H., Ferreras, L. B., Dixon, J. E., Morris, R. H., …El Haj, A. J. (2019). Ex vivo MRI cell tracking of autologous mesenchymal stromal cells in an ovine osteochondral defect model. Stem Cell Research and Therapy, 10, 1-15. https://doi.org/10.1186/s13287-018-1123-7

Background Osteochondral injuries represent a significant clinical problem requiring novel cell-based therapies to restore function of the damaged joint with the use of mesenchymal stromal cells (MSCs) leading research efforts. Pre-clinical studies... Read More about Ex vivo MRI cell tracking of autologous mesenchymal stromal cells in an ovine osteochondral defect model.

Highly efficient delivery of functional cargoes by the synergistic effect of GAG binding motifs and cell-penetrating peptides (2016)
Journal Article
Dixon, J. E., Osman, G., Morris, G. E., Markides, H., Rotherham, M., Bayoussef, Z., …Shakesheff, K. M. (2016). Highly efficient delivery of functional cargoes by the synergistic effect of GAG binding motifs and cell-penetrating peptides. Proceedings of the National Academy of Sciences, 113(3), E291-E299. https://doi.org/10.1073/pnas.1518634113

Protein transduction domains (PTDs) are powerful nongenetic tools that allow intracellular delivery of conjugated cargoes to modify cell behavior. Their use in biomedicine has been hampered by inefficient delivery to nuclear and cytoplasmic targets.... Read More about Highly efficient delivery of functional cargoes by the synergistic effect of GAG binding motifs and cell-penetrating peptides.

Transient Accumulation of 5-Carboxylcytosine Indicates Involvement of Active Demethylation in Lineage Specification of Neural Stem Cells (2014)
Journal Article
Wheldon, L. M., Abakir, A., Ferjentsik, Z., Dudnakova, T., Strohbuecker, S., Christie, D., …Ruzov, A. (2014). Transient Accumulation of 5-Carboxylcytosine Indicates Involvement of Active Demethylation in Lineage Specification of Neural Stem Cells. Cell Reports, 7(5), 1353-1361. https://doi.org/10.1016/j.celrep.2014.05.003

5-Methylcytosine (5mC) is an epigenetic modification involved in regulation of gene activity during differentiation. Tet dioxygenases oxidize 5mC to 5-hydroxymethylcytosine (5hmC), 5-formylcytosine (5fC), and 5-carboxylcytosine (5caC). Both 5fC and 5... Read More about Transient Accumulation of 5-Carboxylcytosine Indicates Involvement of Active Demethylation in Lineage Specification of Neural Stem Cells.

A novel technique for the production of electrospun scaffolds with tailored three-dimensional micro-patterns employing additive manufacturing (2014)
Journal Article
Rogers, C. M., Morris, G. E., Gould, T. W., Bail, R., Toumpaniari, S., Harrington, H., …Rose, F. R. A. J. (2014). A novel technique for the production of electrospun scaffolds with tailored three-dimensional micro-patterns employing additive manufacturing. Biofabrication, 6(3), 035003. https://doi.org/10.1088/1758-5082/6/3/035003

Electrospinning is a common technique used to fabricate fibrous scaffolds for tissue engineering applications. There is now growing interest in assessing the ability of collector plate design to influence the patterning of the fibres during the elect... Read More about A novel technique for the production of electrospun scaffolds with tailored three-dimensional micro-patterns employing additive manufacturing.

Combined hydrogels that switch human pluripotent stem cells from self-renewal to differentiation (2014)
Journal Article
Dixon, J. E., Shah, D. A., Rogers, C., Hall, S., Weston, N., Parmenter, C. D., …Shakesheff, K. M. (2014). Combined hydrogels that switch human pluripotent stem cells from self-renewal to differentiation. Proceedings of the National Academy of Sciences, 111(15), 5580-5585. https://doi.org/10.1073/pnas.1319685111

The ability of materials to define the architecture and microenvironment experienced by cells provides new opportunities to direct the fate of human pluripotent stem cells (HPSCs) [Robinton DA, Daley GQ (2012) Nature 481(7381):295-305]. However, the... Read More about Combined hydrogels that switch human pluripotent stem cells from self-renewal to differentiation.