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Matović J, Järvinen J, Bland HC, Sokka IK, Imlimthan S, Ferrando RM, Huttunen KM, Timonen J, Peräniemi S, Aitio O, Airaksinen AJ, Sarparanta M, Johansson MP, Rautio J, Ekholm FS. Addressing the Biochemical Foundations of a Glucose-Based "Trojan Horse"-Strategy to Boron Neutron Capture Therapy: From Chemical Synthesis to In Vitro Assessment. Mol Pharm 2020; 17:3885-3899. [PMID: 32787269 PMCID: PMC7539299 DOI: 10.1021/acs.molpharmaceut.0c00630] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 08/05/2020] [Accepted: 08/11/2020] [Indexed: 12/12/2022]
Abstract
Boron neutron capture therapy (BNCT) for cancer is on the rise worldwide due to recent developments of in-hospital neutron accelerators which are expected to revolutionize patient treatments. There is an urgent need for improved boron delivery agents, and herein we have focused on studying the biochemical foundations upon which a successful GLUT1-targeting strategy to BNCT could be based. By combining synthesis and molecular modeling with affinity and cytotoxicity studies, we unravel the mechanisms behind the considerable potential of appropriately designed glucoconjugates as boron delivery agents for BNCT. In addition to addressing the biochemical premises of the approach in detail, we report on a hit glucoconjugate which displays good cytocompatibility, aqueous solubility, high transporter affinity, and, crucially, an exceptional boron delivery capacity in the in vitro assessment thereby pointing toward the significant potential embedded in this approach.
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Affiliation(s)
- Jelena Matović
- Department
of Chemistry, University of Helsinki, Finland, P.O. Box 55, FI-00014 Helsinki, Finland
| | - Juulia Järvinen
- School
of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Helena C. Bland
- Department
of Chemistry, University of Helsinki, Finland, P.O. Box 55, FI-00014 Helsinki, Finland
| | - Iris K. Sokka
- Department
of Chemistry, University of Helsinki, Finland, P.O. Box 55, FI-00014 Helsinki, Finland
| | - Surachet Imlimthan
- Department
of Chemistry, University of Helsinki, Finland, P.O. Box 55, FI-00014 Helsinki, Finland
| | - Ruth Mateu Ferrando
- Department
of Chemistry, University of Helsinki, Finland, P.O. Box 55, FI-00014 Helsinki, Finland
| | - Kristiina M. Huttunen
- School
of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Juri Timonen
- School
of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Sirpa Peräniemi
- School
of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Olli Aitio
- Glykos
Finland Ltd., Viikinkaari
6, FI-00790 Helsinki, Finland
| | - Anu J. Airaksinen
- Department
of Chemistry, University of Helsinki, Finland, P.O. Box 55, FI-00014 Helsinki, Finland
- Turku
PET Centre, Department of Chemistry, University
of Turku, P.O. Box 52, FI-20521 Turku, Finland
| | - Mirkka Sarparanta
- Department
of Chemistry, University of Helsinki, Finland, P.O. Box 55, FI-00014 Helsinki, Finland
| | - Mikael P. Johansson
- Department
of Chemistry, University of Helsinki, Finland, P.O. Box 55, FI-00014 Helsinki, Finland
- Helsinki
Institute of Sustainability Science, HELSUS, FI-00014 Helsinki, Finland
| | - Jarkko Rautio
- School
of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Filip S. Ekholm
- Department
of Chemistry, University of Helsinki, Finland, P.O. Box 55, FI-00014 Helsinki, Finland
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Bland HC, Moilanen JA, Ekholm FS, Paananen RO. Investigating the Role of Specific Tear Film Lipids Connected to Dry Eye Syndrome: A Study on O-Acyl-ω-hydroxy Fatty Acids and Diesters. Langmuir 2019; 35:3545-3552. [PMID: 30712353 DOI: 10.1021/acs.langmuir.8b04182] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Dry eye syndrome (DES) is a prevalent disease in which the tear film homeostasis is compromised. One of the main causes of DES is thought to be an alteration in the composition of the outermost layer of the tear film, the tear film lipid layer (TFLL), resulting in an increased evaporation of water from the tear film and subsequent drying of the ocular surface. Recent studies have suggested that the specific TFLL lipids, namely, O-acyl-ω-hydroxy fatty acids (OAHFAs) and diesters (DiEs), may play a role in the development of DES. However, their specific connection to DES has remained largely unknown until now because of the lack of information on their biophysical properties and their role in the TFLL. Herein, we have addressed this issue by studying the biophysical properties and evaporation resistance of a library containing 10 synthetic analogues of TFLL OAHFAs and DiEs. Our results show how the variations of chain length and polar groups affect the phase behavior of these lipids at the tear film surface. In addition, the results revealed that the OAHFAs exhibiting a liquid-expanded to solid phase transition formed films with high evaporation resistance, whereas the DiEs were found to have no evaporation resistance. Altogether, our results shed new light on the role of the OAHFAs and DiEs in the TFLL and their connection to DES, suggesting that OAHFAs are likely a key lipid class in maintaining the TFLL evaporation resistance.
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Affiliation(s)
- Helena C Bland
- Department of Chemistry , University of Helsinki , P.O. Box 55, FI-00014 Helsinki , Finland
| | - Jukka A Moilanen
- Ophthalmology , University of Helsinki and Helsinki University Hospital , Haartmaninkatu 8 , FI-00290 Helsinki , Finland
| | - Filip S Ekholm
- Department of Chemistry , University of Helsinki , P.O. Box 55, FI-00014 Helsinki , Finland
| | - Riku O Paananen
- Ophthalmology , University of Helsinki and Helsinki University Hospital , Haartmaninkatu 8 , FI-00290 Helsinki , Finland
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