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Kovacevic B, Jones M, Wagle SR, Ionescu CM, Foster T, Đanić M, Mikov M, Mooranian A, Al-Salami H. Influence of poly-L-ornithine-bile acid nano hydrogels on cellular bioactivity and potential pharmacological applications. Ther Deliv 2023. [PMID: 37667908 DOI: 10.4155/tde-2023-0034] [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] [Indexed: 09/06/2023] Open
Abstract
Aim: Cellular bioactivity and pathophysiological changes associated with chronic disorders are considered pivotal detrimental factors when developing novel formulations for biomedical applications. Methods: This paper investigates the use of bile acids and synthetic polypeptide poly-L-ornithine (PLO) in formulations and their impacts on a variety of cell lines, with a particular focus on their cellular bioactivity. Results: The hepatic cell line was the most negatively affected by the presence of PLO, while the muscle and beta-pancreatic cell lines did not show as profound of a negative impact of PLO on cellular viability. PLO was the least disruptive regarding mitochondrial function for muscle and beta cells. Conclusion: The addition of bile acids generally decreased mitochondrial respiration and altered bioenergetic parameters in all cell lines.
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Affiliation(s)
- Bozica Kovacevic
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Melissa Jones
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Susbin Raj Wagle
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Corina Mihaela Ionescu
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Thomas Foster
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Maja Đanić
- Department of Pharmacology, Toxicology & Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, 21101, Serbia
| | - Momir Mikov
- Department of Pharmacology, Toxicology & Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, 21101, Serbia
| | - Armin Mooranian
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
- School of Pharmacy, University of Otago, Dunedin, Otago, 9016, New Zealand
| | - Hani Al-Salami
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
- Medical School, University of Western Australia, Perth, 6000, Australia
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Boissonnat JD, Dyer R, Ghosh A, Wintraecken M. Local Criteria for Triangulating General Manifolds. Discrete Comput Geom 2022; 69:156-191. [PMID: 36605029 PMCID: PMC9805998 DOI: 10.1007/s00454-022-00431-7] [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] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 02/01/2022] [Accepted: 02/14/2022] [Indexed: 06/17/2023]
Abstract
We present criteria for establishing a triangulation of a manifold. Given a manifold M, a simplicial complex A , and a map H from the underlying space of A to M, our criteria are presented in local coordinate charts for M, and ensure that H is a homeomorphism. These criteria do not require a differentiable structure, or even an explicit metric on M. No Delaunay property of A is assumed. The result provides a triangulation guarantee for algorithms that construct a simplicial complex by working in local coordinate patches. Because the criteria are easily verified in such a setting, they are expected to be of general use.
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Affiliation(s)
| | - Ramsay Dyer
- INRIA Sophia Antipolis, Université Côte d’Azur, Sophia Antipolis, France
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Fernandez-Yague MA, Hymel LA, Olingy CE, McClain C, Ogle ME, García JR, Minshew D, Vyshnya S, Lim HS, Qiu P, García AJ, Botchwey EA. Analyzing immune response to engineered hydrogels by hierarchical clustering of inflammatory cell subsets. Sci Adv 2022; 8:eabd8056. [PMID: 35213226 PMCID: PMC8880784 DOI: 10.1126/sciadv.abd8056] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 12/31/2021] [Indexed: 06/14/2023]
Abstract
Understanding the immune response to hydrogel implantation is critical for the design of immunomodulatory biomaterials. To study the progression of inflammation around poly(ethylene glycol) hydrogels presenting Arg-Gly-Asp (RGD) peptides and vascular endothelial growth factor, we used temporal analysis of high-dimensional flow cytometry data paired with intravital imaging, immunohistochemistry, and multiplexed proteomic profiling. RGD-presenting hydrogels created a reparative microenvironment promoting CD206+ cellular infiltration and revascularization in wounded dorsal skin tissue. Unbiased clustering algorithms (SPADE) revealed significant phenotypic transition shifts as a function of the cell-adhesion hydrogel properties. SPADE identified an intermediate macrophage subset functionally regulating in vivo cytokine secretion that was preferentially recruited for RGD-presenting hydrogels, whereas dendritic cell subsets were preferentially recruited to RDG-presenting hydrogels. Last, RGD-presenting hydrogels controlled macrophage functional cytokine secretion to direct polarization and vascularization. Our studies show that unbiased clustering of single-cell data provides unbiased insights into the underlying immune response to engineered materials.
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Affiliation(s)
- Marc A. Fernandez-Yague
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
- Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, USA
| | - Lauren A. Hymel
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
- Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, USA
| | - Claire E. Olingy
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
- Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, USA
| | - Claire McClain
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
- Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, USA
| | - Molly E. Ogle
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
- Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, USA
| | - José R. García
- Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, USA
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Dustin Minshew
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Sofiya Vyshnya
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Hong Seo Lim
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Peng Qiu
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Andrés J. García
- Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, USA
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Edward A. Botchwey
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
- Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, USA
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Abstract
UNLABELLED In this paper we will describe two new optimisations implemented in MadGraph5_aMC@NLO, both of which are designed to speed-up the computation of leading-order processes (for any model). First we implement a new method to evaluate the squared matrix element, dubbed helicity recycling, which results in factor of two speed-up. Second, we have modified the multi-channel handling of the phase-space integrator providing tremendous speed-up for VBF-like processes (up to thousands times faster). SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1140/epjc/s10052-021-09204-7.
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Affiliation(s)
- O. Mattelaer
- Center for Cosmology, Particle Physics and Phenomenology (CP3), Université Catholique de Louvain (UCLouvain), 1348 Louvain-la-Neuve, Belgium
- Centre de Calcul Intensif et de Stockage de Masse, Université Catholique de Louvain (UCLouvain), 1348 Louvain-la-Neuve, Belgium
| | - K. Ostrolenk
- Center for Cosmology, Particle Physics and Phenomenology (CP3), Université Catholique de Louvain (UCLouvain), 1348 Louvain-la-Neuve, Belgium
- University of Manchester, School of Physics and Astronomy, Schuster Building, Oxford Road, Manchester, M13 9PL UK
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Lorentzen MPG, Lucas PM. Distribution of Oenococcus oeni populations in natural habitats. Appl Microbiol Biotechnol 2019; 103:2937-2945. [PMID: 30788540 PMCID: PMC6447504 DOI: 10.1007/s00253-019-09689-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 02/05/2019] [Accepted: 02/06/2019] [Indexed: 12/02/2022]
Abstract
Oenococcus oeni is the lactic acid bacteria species most commonly encountered in wine, where it develops after the alcoholic fermentation and achieves the malolactic fermentation that is needed to improve the quality of most wines. O. oeni is abundant in the oenological environment as well as in apple cider and kombucha, whereas it is a minor species in the natural environment. Numerous studies have shown that there is a great diversity of strains in each wine region and in each product or type of wine. Recently, genomic studies have shed new light on the species diversity, population structure, and environmental distribution. They revealed that O. oeni has unique genomic features that have contributed to its fast evolution and adaptation to the enological environment. They have also unveiled the phylogenetic diversity and genomic properties of strains that develop in different regions or different products. This review explores the distribution of O. oeni and the diversity of strains in natural habitats.
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Affiliation(s)
- Marc P. G. Lorentzen
- Unité de recherche Oenologie, EA 4577, USC 1366 INRA, ISVV, Université de Bordeaux, F-33882 Villenave d’Ornon, France
| | - Patrick M. Lucas
- Unité de recherche Oenologie, EA 4577, USC 1366 INRA, ISVV, Université de Bordeaux, F-33882 Villenave d’Ornon, France
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Cruz-Gallardo I, Martino L, Trotta R, De Tito S, Kelly G, Atkinson RA, Randazzo A, Conte MR. Resonance assignment of human LARP4A La module. Biomol NMR Assign 2019; 13:169-172. [PMID: 30632004 PMCID: PMC6439165 DOI: 10.1007/s12104-019-09871-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 01/03/2019] [Indexed: 06/09/2023]
Abstract
Human LARP4A belongs to a superfamily of RNA binding proteins called La-related proteins (LARPs). Whilst being a positive regulator of protein synthesis and a promoter of mRNA stability, LARP4A also controls cell morphology and motility in human breast and prostate cancer cells. All LARPs share a characteristic RNA binding unit named the La-module, which despite a high level of primary structure conservation exhibits a great versatility in RNA target selection. Human LARP4A La-module is the most divergent compared with other LARPs and its RNA recognition properties have only recently started to be revealed. Given the key role of LARP4A protein in cancer cell biology, we have initiated a complete NMR characterisation of its La-module and here we report the assignment of 1H, 15N and 13C resonances resulting from our studies.
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Affiliation(s)
- Isabel Cruz-Gallardo
- Randall Centre for Cell and Molecular Biophysics, King's College London, London, SE1 1UL, UK
- Department of Chemistry, King's College London, 7 Trinity Street, London, SE1 1DB, UK
| | - Luigi Martino
- Randall Centre for Cell and Molecular Biophysics, King's College London, London, SE1 1UL, UK
- The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK
| | - Roberta Trotta
- Randall Centre for Cell and Molecular Biophysics, King's College London, London, SE1 1UL, UK
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Stefano De Tito
- Randall Centre for Cell and Molecular Biophysics, King's College London, London, SE1 1UL, UK
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
- Institute of Protein Biochemistry, National Research Council, Via Pietro Castellino 111, 80131, Naples, Italy
| | - Geoff Kelly
- MRC Biomedical NMR Centre, The Francis Crick Institute, London, NW1 1AT, UK
| | - R Andrew Atkinson
- Randall Centre for Cell and Molecular Biophysics, King's College London, London, SE1 1UL, UK
- Centre for Biomolecular Spectroscopy, King's College London, London, SE1 1UL, UK
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Maria R Conte
- Randall Centre for Cell and Molecular Biophysics, King's College London, London, SE1 1UL, UK.
- Centre for Biomolecular Spectroscopy, King's College London, London, SE1 1UL, UK.
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