All Outputs (33)

Use of Magnetic Resonance Imaging for Visualization of Oral Dosage Forms in the Human Stomach: A Scoping Review (2024)
Journal Article
Akbar, T., Gershkovich, P., Stamatopoulos, K., Gowland, P. A., Stolnik, S., Butler, J., & Marciani, L. (2024). Use of Magnetic Resonance Imaging for Visualization of Oral Dosage Forms in the Human Stomach: A Scoping Review. Molecular Pharmaceutics, 21(4), 1553-1562. https://doi.org/10.1021/acs.molpharmaceut.3c01123

Oral dosage forms are the most widely and frequently used formulations to deliver active pharmaceutical ingredients (APIs), due to their ease of administration and noninvasiveness. Knowledge of intragastric release rates and gastric mixing is crucial... Read More about Use of Magnetic Resonance Imaging for Visualization of Oral Dosage Forms in the Human Stomach: A Scoping Review.

Synthetic macromolecular peptide-mimetics with amino acid substructure residues as protein stabilising excipients (2023)
Journal Article
Foralosso, R., Kopiasz, R. J., Mantovani, G., Stolnik, S., & Alexander, C. (2024). Synthetic macromolecular peptide-mimetics with amino acid substructure residues as protein stabilising excipients. Journal of Materials Chemistry B, 12, 1022-1030. https://doi.org/10.1039/d3tb02102e

The clinical use of protein and peptide biotherapeutics requires fabrication of stable products. This particularly concerns stability towards aggregation of proteins or peptides. Here, we tested a hypothesis that interactions between a synthetic pept... Read More about Synthetic macromolecular peptide-mimetics with amino acid substructure residues as protein stabilising excipients.

Identifying new biomarkers of aggressive Group 3 and SHH medulloblastoma using 3D hydrogel models, single cell RNA sequencing and 3D OrbiSIMS imaging (2023)
Journal Article
Linke, F., Johnson, J. E. C., Kern, S., Bennett, C. D., Lourdusamy, A., Lea, D., …Coyle, B. (2023). Identifying new biomarkers of aggressive Group 3 and SHH medulloblastoma using 3D hydrogel models, single cell RNA sequencing and 3D OrbiSIMS imaging. Acta Neuropathologica Communications, 11(1), Article 6. https://doi.org/10.1186/s40478-022-01496-4

The most common malignant brain tumour in children, medulloblastoma (MB), is subdivided into four clinically relevant molecular subgroups, although targeted therapy options informed by understanding of different cellular features are lacking. Here, b... Read More about Identifying new biomarkers of aggressive Group 3 and SHH medulloblastoma using 3D hydrogel models, single cell RNA sequencing and 3D OrbiSIMS imaging.

A mechanoresponsive nano-sized carrier achieves intracellular release of drug on external ultrasound stimulus (2022)
Journal Article
Catania, R., Onion, D., Russo, E., Zelzer, M., Mantovani, G., Huett, A., & Stolnik, S. (2022). A mechanoresponsive nano-sized carrier achieves intracellular release of drug on external ultrasound stimulus. RSC Advances, 12(26), 16561-16569. https://doi.org/10.1039/d2ra02307e

Control over intracellular release of therapeutic compounds incorporated into nano-carriers will open new possibilities for targeted treatments of various diseases including cancer, and viral and bacterial infections. Here we report our study on mech... Read More about A mechanoresponsive nano-sized carrier achieves intracellular release of drug on external ultrasound stimulus.

Enhanced permeation by amphiphilic surfactant is spatially heterogenous at membrane and cell level (2022)
Journal Article
Cavanagh, R., Shubber, S., Vllasaliu, D., & Stolnik, S. (2022). Enhanced permeation by amphiphilic surfactant is spatially heterogenous at membrane and cell level. Journal of Controlled Release, 345, 734-743. https://doi.org/10.1016/j.jconrel.2022.03.053

In the context of increased interest in permeability enhancement technologies to achieve mucosal delivery of drugs and biologics, we report our study on effects of the amphiphilic surfactant at cell membrane and cell population levels. Our results sh... Read More about Enhanced permeation by amphiphilic surfactant is spatially heterogenous at membrane and cell level.

Assessing lymphatic uptake of lipids using magnetic resonance imaging: A feasibility study in healthy human volunteers with potential application for tracking lymph node delivery of drugs and formulation excipients (2021)
Journal Article
Jewell, A., Williams, H., Hoad, C. L., Gellert, P. R., Ashford, M. B., Butler, J., …Gershkovich, P. (2021). Assessing lymphatic uptake of lipids using magnetic resonance imaging: A feasibility study in healthy human volunteers with potential application for tracking lymph node delivery of drugs and formulation excipients. Pharmaceutics, 13(9), Article 1343. https://doi.org/10.3390/pharmaceutics13091343

Dietary lipids and some pharmaceutical lipid excipients can facilitate the targeted delivery of drugs to the intestinal lymphatics. Here, the feasibility of magnetic resonance imaging (MRI) for imaging lipid uptake into the intestinal lymphatics was... Read More about Assessing lymphatic uptake of lipids using magnetic resonance imaging: A feasibility study in healthy human volunteers with potential application for tracking lymph node delivery of drugs and formulation excipients.

Structural and binding characterization of the LacdiNAc-specific adhesin (LabA; HopD) exodomain from Helicobacter pylori (2020)
Journal Article
Paraskevopoulou, V., Schimpl, M., Overman, R. C., Stolnik, S., Chen, Y., Nguyen, L., …Falcone, F. H. (2021). Structural and binding characterization of the LacdiNAc-specific adhesin (LabA; HopD) exodomain from Helicobacter pylori. Current Research in Structural Biology, 3, 19-29. https://doi.org/10.1016/j.crstbi.2020.12.004

Helicobacter pylori (H. pylori) uses several outer membrane proteins for adhering to its host's gastric mucosa, an important step in establishing and preserving colonization. Several adhesins (SabA, BabA, HopQ) have been characterized in terms of the... Read More about Structural and binding characterization of the LacdiNAc-specific adhesin (LabA; HopD) exodomain from Helicobacter pylori.

3D hydrogels reveal medulloblastoma subgroup differences and identify extracellular matrix subtypes that predict patient outcome (2020)
Journal Article
Linke, F., Aldighieri, M., Lourdusamy, A., Grabowska, A. M., Stolnik, S., Kerr, I. D., …Coyle, B. (2021). 3D hydrogels reveal medulloblastoma subgroup differences and identify extracellular matrix subtypes that predict patient outcome. Journal of Pathology, 253(3), 326-338. https://doi.org/10.1002/path.5591

© 2020 The Authors. The Journal of Pathology published by John Wiley & Sons, Ltd. on behalf of The Pathological Society of Great Britain and Ireland. Medulloblastoma (MB) is the most common malignant brain tumour in children and is subdivided into... Read More about 3D hydrogels reveal medulloblastoma subgroup differences and identify extracellular matrix subtypes that predict patient outcome.

Development of an in vitro system to study the interactions of aerosolized drugs with pulmonary mucus (2020)
Journal Article
Alqahtani, S., Roberts, C. J., Stolnik, S., & Bosquillon, C. (2020). Development of an in vitro system to study the interactions of aerosolized drugs with pulmonary mucus. Pharmaceutics, 12(2), Article 145. https://doi.org/10.3390/pharmaceutics12020145

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. Mucus is the first biological component inhaled drugs encounter on their journey towards their pharmacological target in the upper airways. Yet, how mucus may influence drug disposition and ef... Read More about Development of an in vitro system to study the interactions of aerosolized drugs with pulmonary mucus.

A simple and efficient method for polymer coating of iron oxide nanoparticles (2019)
Journal Article
Abushrida, A., Elhuni, I., Taresco, V., Marciani, L., Stolnik, S., & Garnett, M. C. (2020). A simple and efficient method for polymer coating of iron oxide nanoparticles. Journal of Drug Delivery Science and Technology, 55, Article 101460. https://doi.org/10.1016/j.jddst.2019.101460

Iron oxide nanoparticles (IONP) have many possible uses including as MRI contrast agents, for drug delivery and cell labelling, but need to be stabilised and to be rendered biocompatible through appropriate coatings. Many current coatings are subopti... Read More about A simple and efficient method for polymer coating of iron oxide nanoparticles.

Targeted PEG-poly(glutamic acid) complexes for inhalation protein delivery to the lung (2019)
Journal Article
Nieto-Orellana, A., Li, H., Rosiere, R., Wauthoz, N., Williams, H., Monteiro, C., …Stolnik, S. (2019). Targeted PEG-poly(glutamic acid) complexes for inhalation protein delivery to the lung. Journal of Controlled Release, 316, 250-262. https://doi.org/10.1016/j.jconrel.2019.10.012

Pulmonary delivery is increasingly seen as an attractive, non-invasive route for the delivery of forthcoming protein therapeutics. In this context, here we describe protein complexes with a new ‘complexing excipient’ - vitamin B12-targeted poly(ethyl... Read More about Targeted PEG-poly(glutamic acid) complexes for inhalation protein delivery to the lung.

Introduction of a C-terminal hexa-lysine tag increases thermal stability of the LacDiNac binding adhesin (LabA) exodomain from Helicobacter pylori (2019)
Journal Article
Paraskevopoulou, V., Artiaga, V. G., Rowlinson, R., Winkler, G. S., Gellert, P., Stolnik, S., …Falcone, F. H. (2019). Introduction of a C-terminal hexa-lysine tag increases thermal stability of the LacDiNac binding adhesin (LabA) exodomain from Helicobacter pylori. Protein Expression and Purification, 163, 1-8. https://doi.org/10.1016/j.pep.2019.105446

Helicobacter pylori is a pathogenic microorganism infecting approximately 50% of the global population, and establishes life-long colonization despite the hostile stomach environment. H. pylori employs a wide range of outer membrane proteins (adhesin... Read More about Introduction of a C-terminal hexa-lysine tag increases thermal stability of the LacDiNac binding adhesin (LabA) exodomain from Helicobacter pylori.

Mechanistic insight into heterogeneity of trans-plasma membrane electron transport in cancer cell types (2019)
Journal Article
Sherman, H. G., Jovanovic, C., Abuawad, A., Kim, D., Collins, H., Dixon, J. E., …Rawson, F. J. (2019). Mechanistic insight into heterogeneity of trans-plasma membrane electron transport in cancer cell types. BBA - Bioenergetics, 1860(8), 628-639. https://doi.org/10.1016/j.bbabio.2019.06.012

Trans-plasma membrane electron transfer (tMPET) is a process by which reducing equivalents, either electrons or reductants like ascorbic acid, are exported to the extracellular environment by the cell. TPMET is involved in a number of physiological p... Read More about Mechanistic insight into heterogeneity of trans-plasma membrane electron transport in cancer cell types.

In vitro investigation on the impact of airway mucus on drug dissolution and absorption at the air-epithelium interface in the lungs (2019)
Journal Article
Cingolani, E., Alqahtani, S., Sadler, R. C., Prime, D., Stolnik, S., & Bosquillon, C. (2019). In vitro investigation on the impact of airway mucus on drug dissolution and absorption at the air-epithelium interface in the lungs. European Journal of Pharmaceutics and Biopharmaceutics, 141, 210-220. https://doi.org/10.1016/j.ejpb.2019.05.022

Although the mucus layer is the first biological barrier encountered by inhaled drugs upon their deposition in the upper airways, its potential impact on drug dissolution and absorption in the lung has hardly been investigated. Bio-relevant in vitro... Read More about In vitro investigation on the impact of airway mucus on drug dissolution and absorption at the air-epithelium interface in the lungs.

Penetration and uptake of Nanoparticles in 3D tumour spheroids (2019)
Journal Article
Tchoryk, A., Taresco, V., Argent, R., Ashford, M. B., Gellert, P., Stolnik, S., …Garnett, M. C. (2019). Penetration and uptake of Nanoparticles in 3D tumour spheroids. Bioconjugate Chemistry, 30(5), 1371-1384. https://doi.org/10.1021/acs.bioconjchem.9b00136

Animal models are effective for assessing tumour localisation of nanosystems, but difficult to use for studying penetration beyond the vasculature. Here, we have used well-characterised HCT116 colorectal cancer spheroids to study the effect of nanopa... Read More about Penetration and uptake of Nanoparticles in 3D tumour spheroids.

Investigating the intracellular effects of hyperbranched polycation-DNA complexes on lung cancer cells using LC-MS-based metabolite profiling (2019)
Journal Article
Alazzo, A., Al-Natour, M., Spriggs, K., Stolnik, S., Ghaemmaghami, A., Kim, D.-H., & Alexander, C. (2019). Investigating the intracellular effects of hyperbranched polycation-DNA complexes on lung cancer cells using LC-MS-based metabolite profiling. Molecular Omics, 15(1), 77-87. https://doi.org/10.1039/C8MO00139A

Cationic polymers have emerged as a promising alternative to viral vectors in gene therapy. They are cheap to scale up, easy to functionalise and also presume to be safer than the viral vectors, however many of them are cytotoxic. The large number of... Read More about Investigating the intracellular effects of hyperbranched polycation-DNA complexes on lung cancer cells using LC-MS-based metabolite profiling.

Exposure to a Nonionic Surfactant Induces a Response Akin to Heat-Shock Apoptosis in Intestinal Epithelial Cells: Implications for Excipients Safety (2019)
Journal Article
Cavanagh, R. J., Smith, P. A., & Stolnik, S. (2019). Exposure to a Nonionic Surfactant Induces a Response Akin to Heat-Shock Apoptosis in Intestinal Epithelial Cells: Implications for Excipients Safety. Molecular Pharmaceutics, 16(2), 618-631. https://doi.org/10.1021/acs.molpharmaceut.8b00934

© 2019 American Chemical Society. Amphipathic, nonionic, surfactants are widely used in pharmaceutical, food, and agricultural industry to enhance product features; as pharmaceutical excipients, they are also aimed at increasing cell membrane permeab... Read More about Exposure to a Nonionic Surfactant Induces a Response Akin to Heat-Shock Apoptosis in Intestinal Epithelial Cells: Implications for Excipients Safety.

New perspectives on iron uptake in eukaryotes (2018)
Journal Article
Sherman, H. G., Jovanovic, C., Stolnik, S., Baronian, K., Downard, A. J., & Rawson, F. J. (2018). New perspectives on iron uptake in eukaryotes. Frontiers in Molecular Biosciences, 5(NOV), Article 97. https://doi.org/10.3389/fmolb.2018.00097

All eukaryotic organisms require iron to function. Malfunctions within iron homeostasis have a range of physiological consequences, and can lead to the development of pathological conditions that can result in an excess of non-transferrin bound iron... Read More about New perspectives on iron uptake in eukaryotes.

Rapid formulation of redox-responsive oligo-β-aminoester polyplexes with siRNA via jet printing (2018)
Journal Article
Lovato, T., Taresco, V., Alazzo, A., Sansone, C., Stolnik, S., Alexander, C., & Conte, C. (2018). Rapid formulation of redox-responsive oligo-β-aminoester polyplexes with siRNA via jet printing. Journal of Materials Chemistry B, 6(41), 6550-6558. https://doi.org/10.1039/C8TB01215F

Here we describe a rapid inkjet formulation method for screening newly-synthesised cationic materials for siRNA delivery into cancer cells. Reduction responsive oligo-β-aminoesters were prepared and evaluated for their ability to condense siRNA into... Read More about Rapid formulation of redox-responsive oligo-β-aminoester polyplexes with siRNA via jet printing.

Structural variations in hyperbranched polymers prepared via thermal polycondensation of lysine and histidine and their effects on DNA delivery (2018)
Journal Article
Alazzo, A., Lovato, T., Collins, H. M., Taresco, V., Stolnik, S., Soliman, M. E., Spriggs, K., & Alexander, C. (2018). Structural variations in hyperbranched polymers prepared via thermal polycondensation of lysine and histidine and their effects on DNA delivery. Journal of Interdisciplinary Nanomedicine, 3(2), https://doi.org/10.1002/jin2.36

The successful clinical translation of non-viral gene delivery systems has yet to be achieved due to the biological and technical obstacles to preparing a safe, potent and cost-effective vector. Hyper-branched polymers have emerged as promising candi... Read More about Structural variations in hyperbranched polymers prepared via thermal polycondensation of lysine and histidine and their effects on DNA delivery.