1
|
Salluce G, Folgar-Cameán Y, Barba-Bon A, Nikšić-Franjić I, El Anwar S, Grüner B, Lostale-Seijo I, Nau W, Montenegro J. Size and Polarizability of Boron Cluster Carriers Modulate Chaotropic Membrane Transport. Angew Chem Int Ed Engl 2024:e202404286. [PMID: 38712936 DOI: 10.1002/anie.202404286] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/24/2024] [Accepted: 05/02/2024] [Indexed: 05/08/2024]
Abstract
Perhalogenated closo-borates represent a new class of membrane carriers. They owe this activity to their chaotropicity, which enables the transport of hydrophilic molecules across model membranes and into living cells. The transport efficiency of this new class of cluster carriers depends on a careful balance between their affinity to membranes and cargo, which varies with chaotropicity. However, the structure-activity parameters that define chaotropic transport remain to be elucidated. Here, we have studied the modulation of chaotropic transport by decoupling the halogen composition from the boron core size. The binding affinity between perhalogenated decaborate and dodecaborate clusters carriers was quantified with different hydrophilic model cargos, namely a neutral and a cationic peptide, phalloidin and (KLAKLAK)2. The transport efficiency, membrane-lytic properties, and cellular toxicity, as obtained from different vesicle and cell assays, increased with the size and polarizability of the clusters. These results validate the chaotropic effect as the driving force behind the membrane transport propensity of boron clusters. This work advances our understanding of the structural features of boron cluster carriers and establishes the first set of rational design principles for chaotropic membrane transporters.
Collapse
Affiliation(s)
| | | | | | | | - Suzan El Anwar
- Academy of Sciences of the Czech Republic, Inorganic Chemistry, CZECH REPUBLIC
| | - Bohumír Grüner
- Academy of Sciences of the Czech Republic, Inorganic Chemistry, CZECH REPUBLIC
| | | | - Werner Nau
- Constructor University Bremen gGmbH, Chemistry, GERMANY
| | - Javier Montenegro
- Universidad de Santiago de Compostela, Departamento de Química Orgánica, c/ Jenaro de la Fuente s/n, 15782, Santiago de Compostela, SPAIN
| |
Collapse
|
2
|
Ćehić M, Nikšić-Franjić I. Reactions of a hydrogen atom with haloacetates in aqueous solutions: Computational evidence for proton-coupled electron transfer and competing mechanisms. J Comput Chem 2023; 44:2212-2222. [PMID: 37452597 DOI: 10.1002/jcc.27191] [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] [Received: 04/05/2023] [Revised: 06/30/2023] [Accepted: 07/04/2023] [Indexed: 07/18/2023]
Abstract
A computational study of the mechanisms and kinetics of the aqueous reactions of a hydrogen atom with haloacetates is presented. Several mechanisms in the close competition are observed, such as proton-coupled electron transfer (PCET), hydrogen atom transfer (HAT), and halogen abstraction (XA). Computations predict that dechlorination takes place via PCET mechanisms and not via XA, as stated earlier, while XA is the fastest mechanism forIAc - . The reaction rate constants are reasonably well predicted within the theoretically most reliable canonical variational transition state theory with small curvature tunneling corrections and compared with the experimental ones. To reproduce the experimental rate constants of the debromination process it is necessary to include the PCET and XA cumulative values. Small curvature tunneling corrections to the rate constants are the highest for HAT and PCET mechanisms, up to 70 times larger than the Wigner, while variational effects for XA mechanisms are very small.
Collapse
Affiliation(s)
- Mirsada Ćehić
- Chair of Environmental Protection, University of Applied Sciences on Security and Safety, VSS, Zagreb, Croatia
| | | |
Collapse
|
3
|
Nikšić-Franjić I, Colasson B, Reinaud O, Višnjevac A, Piantanida I, Pavlović Saftić D. Novel pyrene-calix[4]arene derivatives as highly sensitive sensors for nucleotides, DNA and RNA. RSC Adv 2023; 13:27423-27433. [PMID: 37711378 PMCID: PMC10498358 DOI: 10.1039/d3ra05696a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 09/07/2023] [Indexed: 09/16/2023] Open
Abstract
Covalent functionalization of a calix[4]arene with one or two pyrene arms at one rim and two imidazoles at the opposite rim of the macrocyclic basket, yields fluorescent conjugates characterized by intramolecular pyrene-calixarene exciplex emission of a mono-pyrene conjugate, whereas the bis-pyrene derivative exhibits pyrene excimer fluorescence. The pyrene emission in these novel compounds is shown to be sensitive to non-covalent interactions with both mono- and polynucleotides. Pyrene-calixarene conjugates, acting as host molecules, strongly interact with nucleotides, as monitored by moderate emission quenching, reaching 0.1 μM affinities, comparable to some of the most effective supramolecular sensors for nucleotides. These compounds are efficiently inserted into ds-DNA/RNA grooves, with a high, 0.1-1 μM affinity, not influencing significantly any of the ds-polynucleotide native properties, whereby complete emission quenching allows the detection of DNA at nM concentration.
Collapse
Affiliation(s)
- Ivana Nikšić-Franjić
- Division of Physical Chemistry, Laboratory for Chemical and Biological Crystallography, Ruđer Bošković Institute Bijenička cesta 54 10000 Zagreb Croatia
| | - Benoit Colasson
- Université de Paris - Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601 45 rue des Saints Pères 75006 Paris France
| | - Olivia Reinaud
- Université de Paris - Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601 45 rue des Saints Pères 75006 Paris France
| | - Aleksandar Višnjevac
- Division of Physical Chemistry, Laboratory for Chemical and Biological Crystallography, Ruđer Bošković Institute Bijenička cesta 54 10000 Zagreb Croatia
| | - Ivo Piantanida
- Division of Organic Chemistry and Biochemistry, Laboratory for Biomolecular Interactions and Spectroscopy, Ruđer Bošković Institute Bijenička cesta 54 10000 Zagreb Croatia
| | - Dijana Pavlović Saftić
- Division of Organic Chemistry and Biochemistry, Laboratory for Biomolecular Interactions and Spectroscopy, Ruđer Bošković Institute Bijenička cesta 54 10000 Zagreb Croatia
| |
Collapse
|
4
|
Višnjevac A, Nyssen N, Nikšić-Franjić I, Piantanida I, Colasson B, Reinaud O. TREN and TMPA capped calix[6]arene metal complexes as ds-DNA/RNA binders. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322093706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
|
5
|
Gazdek N, Zonjić I, Nikšić-Franjić I, Leo Frkanec L, Piantanida I. Competitive binding of aristolochic acid between various cyclodextrins and serum albumin as a model for acute poisoning detoxification. Supramol Chem 2021. [DOI: 10.1080/10610278.2022.2109472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Nika Gazdek
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Zagreb, Croatia
| | - Iva Zonjić
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Zagreb, Croatia
| | - Ivana Nikšić-Franjić
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Zagreb, Croatia
| | - Leo Leo Frkanec
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Zagreb, Croatia
| | - Ivo Piantanida
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Zagreb, Croatia
| |
Collapse
|
6
|
Nikšić-Franjić I, Ljubić I. Comparing the performances of various density functionals for modelling the mechanisms and kinetics of bimolecular free radical reactions in aqueous solution. Phys Chem Chem Phys 2019; 21:23425-23440. [DOI: 10.1039/c9cp04688g] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We systematically tested the performances of 18 density functionals for the mechanisms and kinetics of reactions of the α-hydroxyisopropyl radical with 9 organic substrates.
Collapse
Affiliation(s)
| | - Ivan Ljubić
- Department of Physical Chemistry
- Ruđer Bošković Institute
- Zagreb
- Croatia
| |
Collapse
|
7
|
Džeba I, Bonifačić M, Nikšić-Franjić I, Ljubić I. Proton-coupled electron transfer is the dominant mechanism of reduction of haloacetates by the α-hydroxyethyl radical in aqueous media. Phys Chem Chem Phys 2018; 20:19829-19840. [DOI: 10.1039/c8cp03544j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Reactions of α-hydroxyethyl radical with four haloacetates in non-buffered and buffered aqueous solutions preferably follow the proton-coupled electron transfer pathway.
Collapse
Affiliation(s)
- Iva Džeba
- Department of Materials Chemistry
- Ruđer Bošković Institute
- HR-10000 Zagreb
- Croatia
| | - Marija Bonifačić
- Department of Physical Chemistry
- Ruđer Bošković Institute
- HR-10000 Zagreb
- Croatia
| | | | - Ivan Ljubić
- Department of Physical Chemistry
- Ruđer Bošković Institute
- HR-10000 Zagreb
- Croatia
| |
Collapse
|
8
|
Požar J, Nikšić-Franjić I, Cvetnić M, Leko K, Cindro N, Pičuljan K, Borilović I, Frkanec L, Tomišić V. Solvation Effect on Complexation of Alkali Metal Cations by a Calix[4]arene Ketone Derivative. J Phys Chem B 2017; 121:8539-8550. [DOI: 10.1021/acs.jpcb.7b05093] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Josip Požar
- Department
of Chemistry, Faculty of Science, University of Zagreb, Horvatovac
102a, 10000 Zagreb, Croatia
| | - Ivana Nikšić-Franjić
- Department
of Chemistry, Faculty of Science, University of Zagreb, Horvatovac
102a, 10000 Zagreb, Croatia
| | - Marija Cvetnić
- Department
of Chemistry, Faculty of Science, University of Zagreb, Horvatovac
102a, 10000 Zagreb, Croatia
| | - Katarina Leko
- Department
of Chemistry, Faculty of Science, University of Zagreb, Horvatovac
102a, 10000 Zagreb, Croatia
| | - Nikola Cindro
- Department
of Chemistry, Faculty of Science, University of Zagreb, Horvatovac
102a, 10000 Zagreb, Croatia
| | - Katarina Pičuljan
- Department
of Chemistry, Faculty of Science, University of Zagreb, Horvatovac
102a, 10000 Zagreb, Croatia
| | - Ivana Borilović
- Department
of Chemistry, Faculty of Science, University of Zagreb, Horvatovac
102a, 10000 Zagreb, Croatia
| | - Leo Frkanec
- Department
of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
| | - Vladislav Tomišić
- Department
of Chemistry, Faculty of Science, University of Zagreb, Horvatovac
102a, 10000 Zagreb, Croatia
| |
Collapse
|