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Anderson LR, Hunter AP, Kershaw MJ, Bylikin SY, Bowen J, Taylor PG, Birchall MA, Mehrban N. "Clicking" trimeric peptides onto hybrid T 8POSS nanocages and identifying synthesis limitations. NANOSCALE 2024; 16:14802-14812. [PMID: 39028306 DOI: 10.1039/d4nr01685h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Macromolecule branching upon polyhedral oligomeric silsesquioxanes (POSS) via "click" chemistry has previously been reported for promoting natural biological responses in vitro, particularly when regarding their demonstrated biocompatibility and structural robustness as potential macromolecule anchoring points. However, "clicking" of large molecules around POSS structures uncovers two main challenges: (1) a synthetic challenge encompassing multi-covalent attachment of macromolecules to a single nanoscale-central position, and (2) purification and separation of fully adorned nanocages from those that are incomplete due to their similar physical characteristics. Here we present peptide decoration to a T8POSS nanocage through the attachment of azido-modified trimers. Triglycine- and trialanine-methyl esters "clicked" to 97% and 92% completion, respectively, resulting in 84% and 68% yields of the fully-adorned octamers. The "clicks" halt within 27-h of the reaction time, and efforts to further increase the octamer yield were of negligible benefit. Exploration of reaction conditions reveals multiple factors preventing full octa-arm modification to all available POSS nanocages, and offers insights into macromolecule attachment between both peptides and small inorganic-organic structures, all of which require consideration for future work of this nature.
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Affiliation(s)
- Lewis R Anderson
- University College London, Ear Institute, 332 Grays Inn Rd, London WC1X 8EE, UK
- University of Bath, Department of Life Sciences, Claverton Down, Bath BA2 7AX, UK.
| | - Ann P Hunter
- NMSF, Swansea University Medical School, Singleton Park, Swansea, SA2 8PP, UK
| | - Matthew J Kershaw
- The Open University, School of Life, Health & Chemical Sciences, Walton Hall, Kents Hill, Milton Keynes MK7 6AA, UK
| | - Sergey Y Bylikin
- The Open University, School of Life, Health & Chemical Sciences, Walton Hall, Kents Hill, Milton Keynes MK7 6AA, UK
| | - James Bowen
- The Open University, School of Engineering & Innovation, Walton Hall, Kents Hill, Milton Keynes MK7 6AA, UK
| | - Peter G Taylor
- The Open University, School of Life, Health & Chemical Sciences, Walton Hall, Kents Hill, Milton Keynes MK7 6AA, UK
| | - Martin A Birchall
- University College London, Ear Institute, 332 Grays Inn Rd, London WC1X 8EE, UK
| | - Nazia Mehrban
- University of Bath, Department of Life Sciences, Claverton Down, Bath BA2 7AX, UK.
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Jafari M, Abolmaali SS, Borandeh S, Najafi H, Zareshahrabadi Z, Koohi-Hosseinabadi O, Azarpira N, Zomorodian K, Tamaddon AM. Dendritic hybrid materials comprising polyhedral oligomeric silsesquioxane (POSS) and hyperbranched polyglycerol for effective antifungal drug delivery and therapy in systemic candidiasis. NANOSCALE 2023; 15:16163-16177. [PMID: 37772640 DOI: 10.1039/d3nr04321e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
Systemic Candida infections are routinely treated with amphotericin B (AMB), a highly effective antimycotic drug. However, due to severe toxicities linked to the parenteral administration of conventional micellar formulations (Fungizone®), its clinical utility is limited. Hyperbranched polyglycerols (HPGs) are multi-branched three-dimensional hydrophilic macromolecules that can be used to lessen the toxicity of AMB while also increasing its aqueous solubility. In the current research, to improve the safety and therapeutic efficacy of AMB, we developed new polyhedral oligomeric silsesquioxane - hyperbranched polyglycerol dendrimers with cholesterol termini (POSS-HPG@Chol) using azide-alkyne click reaction. Compared with Fungizone®, the as-synthesized POSS-HPG@Chol/AMB had lower minimum inhibitory and fungicidal concentrations against almost all studied Candida spp., as well as much less hemolysis and cytotoxicity. POSS-HPG@Chol/AMB revealed total protection of Balb/C mice from severe Candida infections in an experimental model of systemic candidiasis and can effectively reduce or eliminate AMB liver and kidney tissue injuries. Thanks to their safety, biocompatibility, and unique therapeutic properties, the developed POSS-polyglycerol dendrimers could be viable nanostructures for the delivery of poorly soluble drugs like AMB.
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Affiliation(s)
- Mahboobeh Jafari
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, PO Box 71345-1583, Shiraz, Iran.
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, PO Box 71345-1583, Shiraz, Iran.
| | - Samira Sadat Abolmaali
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, PO Box 71345-1583, Shiraz, Iran.
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, PO Box 71345-1583, Shiraz, Iran.
| | - Sedigheh Borandeh
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, PO Box 71345-1583, Shiraz, Iran.
| | - Haniyeh Najafi
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, PO Box 71345-1583, Shiraz, Iran.
| | - Zahra Zareshahrabadi
- Basic Sciences in Infectious Diseases Research Center, Shiraz University of Medical Sciences, PO Box 713484-5794, Shiraz, Iran.
| | - Omid Koohi-Hosseinabadi
- Central Research Laboratory, Shiraz University of Medical Sciences, PO Box 71345-1583, Shiraz, Iran.
| | - Negar Azarpira
- Transplant Research Center, Shiraz University of Medical Sciences, Mohammad Rasoul-allah Research Tower, PO Box 7193711351, Shiraz, Iran.
| | - Kamiar Zomorodian
- Basic Sciences in Infectious Diseases Research Center, Shiraz University of Medical Sciences, PO Box 713484-5794, Shiraz, Iran.
- Department of Medical Parasitology and Mycology, Shiraz University of Medical Sciences, PO Box 713484-5794, Shiraz, Iran
| | - Ali Mohammad Tamaddon
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, PO Box 71345-1583, Shiraz, Iran.
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, PO Box 71345-1583, Shiraz, Iran.
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Aguado S, Vicent DJ, Casarrubios L, Ramírez de Arellano C, Sierra MA. Two Complementary Approaches to Silicon-Supported Soluble [FeFe]-Hydrogenase Mimics. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sergio Aguado
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Diego J. Vicent
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Luis Casarrubios
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Carmen Ramírez de Arellano
- Departamento de Química Orgánica, Universidad de Valencia, 46100 Valencia, Spain
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Miguel A. Sierra
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
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Prigyai N, Chanmungkalakul S, Sukwattanasinitt M, Ervithayasuporn V. Symmetry driven: the synthesis of co-substituent octasilsesquioxanes. NEW J CHEM 2021. [DOI: 10.1039/d1nj02381k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Cubic octasilsesquioxanes with mixed substituents were directly synthesized through a sol–gel process using the mixture of i-butyl(triethoxysilane) and other alkoxysilanes.
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Affiliation(s)
- Nicha Prigyai
- Department of Chemistry
- Center of Excellence for Innovation in Chemistry
- and Center for Inorganic and Materials Chemistry
- Faculty of Science
- Mahidol University
| | - Supphachok Chanmungkalakul
- Department of Chemistry
- Center of Excellence for Innovation in Chemistry
- and Center for Inorganic and Materials Chemistry
- Faculty of Science
- Mahidol University
| | | | - Vuthichai Ervithayasuporn
- Department of Chemistry
- Center of Excellence for Innovation in Chemistry
- and Center for Inorganic and Materials Chemistry
- Faculty of Science
- Mahidol University
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Arsalani N, Kazeminava F, Akbari A, Hamishehkar H, Jabbari E, Kafil HS. Synthesis of polyhedral oligomeric silsesquioxane nano‐crosslinked poly(ethylene glycol)‐based hybrid hydrogels for drug delivery and antibacterial activity. POLYM INT 2018. [DOI: 10.1002/pi.5748] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Nasser Arsalani
- Research Laboratory of Polymer, Department of Organic and Biochemistry, Faculty of ChemistryUniversity of Tabriz Tabriz Iran
| | - Fahimeh Kazeminava
- Research Laboratory of Polymer, Department of Organic and Biochemistry, Faculty of ChemistryUniversity of Tabriz Tabriz Iran
| | - Ali Akbari
- Department of ChemistryUniversity of Maragheh Maragheh Iran
| | - Hamed Hamishehkar
- Drug Applied Research CenterTabriz University of Medical Sciences Tabriz Iran
| | - Esmaiel Jabbari
- Department of Chemical EngineeringUniversity of South Carolina Columbia SC USA
| | - Hossein S Kafil
- Biotechnology Research CenterTabriz University of Medical Sciences Tabriz Iran
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Walczak M, Januszewski R, Franczyk A, Marciniec B. Synthesis of monofunctionalized POSS through hydrosilylation. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.07.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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