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All Outputs (23)

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.

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)
Journal Article
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.

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, 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.

Highly versatile cell-penetrating peptide loaded scaffold for efficient and localised gene delivery to multiple cell types: From development to application in tissue engineering (2019)
Journal Article
Raftery, R. M., Walsh, D. P., Blokpoel Ferreras, L., Mencía Castaño, I., Chen, G., LeMoine, M., …O'Brien, F. J. (2019). Highly versatile cell-penetrating peptide loaded scaffold for efficient and localised gene delivery to multiple cell types: From development to application in tissue engineering. Biomaterials, 216, Article 119277. https://doi.org/10.1016/j.biomaterials.2019.119277

Gene therapy has recently come of age with seven viral vector-based therapies gaining regulatory approval in recent years. In tissue engineering, non-viral vectors are preferred over viral vectors, however, lower transfection efficiencies and difficu... Read More about Highly versatile cell-penetrating peptide loaded scaffold for efficient and localised gene delivery to multiple cell types: From development to application in tissue engineering.

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.

Discovery of peptide ligands targeting a specific ubiquitin-like domain– binding site in the deubiquitinase USP11 (2018)
Journal Article
Spiliotopoulos, A., Ferreras, L. B., Densham, R. M., Caulton, S. G., Maddison, B. C., Morris, J. R., …Dreveny, I. (2019). Discovery of peptide ligands targeting a specific ubiquitin-like domain– binding site in the deubiquitinase USP11. Journal of Biological Chemistry, 294(2), 424-436. https://doi.org/10.1074/jbc.RA118.004469

© 2019 Spiliotopoulos et al. Published by The American Society for Biochemistry and Molecular Biology, Inc. Ubiquitin-specific proteases (USPs) reverse ubiquitination and regulate virtually all cellular processes. Defined noncatalytic domains in USP... Read More about Discovery of peptide ligands targeting a specific ubiquitin-like domain– binding site in the deubiquitinase USP11.

PEGylated enhanced cell penetrating peptide nanoparticles for lung gene therapy (2018)
Journal Article
Osman, G., Rodriguez, J., Chan, S. Y., Chisholm, J., Duncan, G., Kim, N., …Dixon, J. E. (2018). PEGylated enhanced cell penetrating peptide nanoparticles for lung gene therapy. Journal of Controlled Release, 285, 35-45. https://doi.org/10.1016/j.jconrel.2018.07.001

The lung remains an attractive target for the gene therapy of monogenetic diseases such as cystic fibrosis (CF). Despite over 27 clinical trials, there are still very few gene therapy vectors that have shown any improvement in lung function; highligh... Read More about PEGylated enhanced cell penetrating peptide nanoparticles for lung gene therapy.

Post-modified polypeptides with UCST-type behavior for control of cell attachment in physiological conditions (2018)
Journal Article
Xue, X., Thiagarajan, L., Dixon, J. E., Saunders, B. R., Shakesheff, K. M., & Alexander, C. (2018). Post-modified polypeptides with UCST-type behavior for control of cell attachment in physiological conditions. Materials, 11(1), Article 95. https://doi.org/10.3390/ma11010095

Upper Critical Solution Temperature (UCST)-type thermally responsive polypeptides (TRPs) with phase transition temperatures around 37 ?C in phosphate-buffered saline (PBS) buffer (pH 7.4, 100 mM) were prepared from poly(L-ornithine) hydrobromide and... Read More about Post-modified polypeptides with UCST-type behavior for control of cell attachment in physiological conditions.

Osteogenic programming of human mesenchymal stem cells with highly efficient intracellular delivery of RUNX2 (2017)
Journal Article
Thiagarajan, L., Abu-Awwad, H. A. M., & Dixon, J. E. (2017). Osteogenic programming of human mesenchymal stem cells with highly efficient intracellular delivery of RUNX2. Stem Cells Translational Medicine, 6(12), https://doi.org/10.1002/sctm.17-0137

Mesenchymal stem cells (MSCs) are being exploited in regenerative medicine due to their tri-lineage differentiation and immunomodulation activity. Currently, there are two major challenges when directing the differentiation of MSCs for therapeutic ap... Read More about Osteogenic programming of human mesenchymal stem cells with highly efficient intracellular delivery of RUNX2.

Controlled release of G AG-binding e nhanced t ransduction (GET) peptides for sustained and highly efficient intracellular delivery (2017)
Journal Article
Abu-Awwad, H. A. M., Thiagarajan, L., & Dixon, J. E. (2017). Controlled release of G AG-binding e nhanced t ransduction (GET) peptides for sustained and highly efficient intracellular delivery. Acta Biomaterialia, 57, 225-237. https://doi.org/10.1016/j.actbio.2017.04.028

Controlled release systems for therapeutic molecules are vital to allow the sustained local delivery of their activities which direct cell behaviour and enable novel regenerative strategies. Direct programming of cells using exogenously delivered tra... Read More about Controlled release of G AG-binding e nhanced t ransduction (GET) peptides for sustained and highly efficient intracellular delivery.

Highly efficient intracellular transduction in three-dimensional gradients for programming cell fate (2016)
Journal Article
Eltaher, H. M., Yang, J., Shakesheff, K. M., & Dixon, J. E. (2016). Highly efficient intracellular transduction in three-dimensional gradients for programming cell fate. Acta Biomaterialia, 41, 181-192. https://doi.org/10.1016/j.actbio.2016.06.004

Fundamental behaviour such as cell fate, growth and death are mediated through the control of key genetic transcriptional regulators. These regulators are activated or repressed by the integration of multiple signalling molecules in spatio-temporal g... Read More about Highly efficient intracellular transduction in three-dimensional gradients for programming cell fate.

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.