1
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Ariff PNAM, Sedgwick DM, Iwasawa K, Kiyono T, Sumii Y, Ikuta R, Uranagase M, Kawahara H, Fustero S, Ogata S, Shibata N. Design and Mechanistic Insights into α-Helical p-Terphenyl Guanidines as Potent Small-Molecule Antifreeze Agents. J Am Chem Soc 2024; 146:26435-26441. [PMID: 39233468 DOI: 10.1021/jacs.4c09389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/06/2024]
Abstract
Ice formation is a critical challenge across multiple fields, from industrial applications to biological preservation. Inspired by natural antifreeze proteins, we designed and synthesized a new class of small-molecule antifreezes based on α-helical p-terphenyl scaffolds with guanidine side chains. These p-terphenyl guanidines 1, among the smallest molecules that mimic α-helical structures, exhibit potent ice recrystallization inhibition (IRI) activity, similar to that of existing large α-helical antifreeze compounds. The most effective compound, 1a, with four C1-carbon guanidine moieties, demonstrated a superior IRI activity of 0.46 (1 mg/mL). Using molecular dynamics simulations with density-functional theory and separate pKa calculations, we elucidated the mechanisms underlying their antifreeze properties.
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Affiliation(s)
- Putri Nur Arina Mohd Ariff
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya 466-8555, Japan
| | - Daniel M Sedgwick
- Department of Organic Chemistry, University of Valencia, Pharmacy Faculty, Burjassot, Valencia 46100, Spain
| | - Kenta Iwasawa
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya 466-8555, Japan
| | - Tatsuki Kiyono
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya 466-8555, Japan
| | - Yuji Sumii
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya 466-8555, Japan
| | - Ryoya Ikuta
- Department of Physical Science and Engineering, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya 466-8555, Japan
| | - Masayuki Uranagase
- Department of Physical Science and Engineering, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya 466-8555, Japan
| | - Hidehisa Kawahara
- KUREi Co., Ltd., 404 Center for Innovation & Creativity, Kansai University, 3-3-35 Yamate-cho, Suita-shi, Osaka 564-8680, Japan
| | - Santos Fustero
- Department of Organic Chemistry, University of Valencia, Pharmacy Faculty, Burjassot, Valencia 46100, Spain
| | - Shuji Ogata
- Department of Physical Science and Engineering, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya 466-8555, Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya 466-8555, Japan
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya 466-8555, Japan
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2
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Cristóbal C, Gaviña D, Alonso I, Ribagorda M, Carretero JC, Del Pozo C, Adrio J. Catalytic enantioselective intramolecular 1,3-dipolar cycloaddition of azomethine ylides with fluorinated dipolarophiles. Chem Commun (Camb) 2022; 58:7805-7808. [PMID: 35735739 DOI: 10.1039/d2cc02902b] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enantioselective synthesis of polycyclic fluorinated pyrrolidines has been achieved by Cu-catalyzed intramolecular 1,3-dipolar cycloaddition of azomethine ylides with fluorinated dipolarophiles. The method displays a wide scope and afforded the desired cycloadducts in high yields with up to 99% ee. These results demonstrate that fluoroalkyl substituents are excellent activating groups in this transformation.
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Affiliation(s)
- Christian Cristóbal
- Departamento de Química Orgánica, Facultad de Ciencias, C/Francisco Tomás y Valiente 7, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
| | - Daniel Gaviña
- Departamento de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Spain.
| | - Inés Alonso
- Departamento de Química Orgánica, Facultad de Ciencias, C/Francisco Tomás y Valiente 7, Universidad Autónoma de Madrid, 28049 Madrid, Spain. .,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Spain
| | - María Ribagorda
- Departamento de Química Orgánica, Facultad de Ciencias, C/Francisco Tomás y Valiente 7, Universidad Autónoma de Madrid, 28049 Madrid, Spain. .,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Juan C Carretero
- Departamento de Química Orgánica, Facultad de Ciencias, C/Francisco Tomás y Valiente 7, Universidad Autónoma de Madrid, 28049 Madrid, Spain. .,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Spain
| | - Carlos Del Pozo
- Departamento de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Spain.
| | - Javier Adrio
- Departamento de Química Orgánica, Facultad de Ciencias, C/Francisco Tomás y Valiente 7, Universidad Autónoma de Madrid, 28049 Madrid, Spain. .,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Spain
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3
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He X, Hu B, Yang Y, Zhu HY, Rong RX, Li XL, Wang KR. Synthesis, self-aggregation and cryopreservation effects of perylene bisimide-glycopeptide conjugates. Chem Commun (Camb) 2021; 57:12000-12003. [PMID: 34709255 DOI: 10.1039/d1cc03835d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Three perylene bisimide-glycopeptide conjugates (PBI-AFF-Man, PBI-AFF-Glu and PBI-AFF-Gal) were synthesized, which showed moderate activity in the control of ice crystal growth. Furthermore, the cellular cryopreservation effects of PBI-AFF-Man, PBI-AFF-Glu and PBI-AFF-Gal showed enhancements in cell viabilities, especially for PBI-AFF-Glu with values of 22.77 ± 3.33% (HeLa cells), 19.43 ± 1.90% (A549 cells) and 16.63 ± 1.76% (GES-1 cells) at a dose of 1.0 mg mL-1. This work will help guide the development of self-assembled cryoprotectants.
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Affiliation(s)
- Xu He
- College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, P. R. China. .,Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Hebei University), Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China
| | - Bing Hu
- College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, P. R. China. .,Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Hebei University), Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China
| | - Yan Yang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Hebei University), Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China.,Department of Immunology, School of Basic Medical Science, Hebei University, Baoding 071002, P. R. China
| | - Hong-Yu Zhu
- College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, P. R. China. .,Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Hebei University), Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China
| | - Rui-Xue Rong
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Hebei University), Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China.,Department of Immunology, School of Basic Medical Science, Hebei University, Baoding 071002, P. R. China
| | - Xiao-Liu Li
- College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, P. R. China. .,Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Hebei University), Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China
| | - Ke-Rang Wang
- College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, P. R. China. .,Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Hebei University), Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China
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4
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Malinovská L, Thai Le S, Herczeg M, Vašková M, Houser J, Fujdiarová E, Komárek J, Hodek P, Borbás A, Wimmerová M, Csávás M. Synthesis of β-d-galactopyranoside-Presenting Glycoclusters, Investigation of Their Interactions with Pseudomonas aeruginosa Lectin A (PA-IL) and Evaluation of Their Anti-Adhesion Potential. Biomolecules 2019; 9:E686. [PMID: 31683947 PMCID: PMC6920806 DOI: 10.3390/biom9110686] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 10/30/2019] [Accepted: 10/31/2019] [Indexed: 12/19/2022] Open
Abstract
Pseudomonas aeruginosa is an opportunistic human pathogen associated with cystic fibrosis. This bacterium produces, among other virulence factors, a soluble d-galactose-specific lectin PA-IL (LecA). PA-IL plays an important role in the adhesion to the host cells and is also cytotoxic. Therefore, this protein is an interesting therapeutic target, suitable for inhibition by carbohydrate-based compounds. In the current study, β-d-galactopyranoside-containing tri- and tetravalent glycoclusters were synthesized. Methyl gallate and pentaerythritol equipped with propargyl groups were chosen as multivalent scaffolds and the galactoclusters were built from the above-mentioned cores by coupling ethylene or tetraethylene glycol-bridges and peracetylated propargyl β-d-galactosides using 1,3-dipolar azide-alkyne cycloaddition. The interaction between galactoside derivatives and PA-IL was investigated by several biophysical methods, including hemagglutination inhibition assay, isothermal titration calorimetry, analytical ultracentrifugation, and surface plasmon resonance. Their ability to inhibit the adhesion of P. aeruginosa to bronchial cells was determined by ex vivo assay. The newly synthesized multivalent galactoclusters proved to be significantly better ligands than simple d-galactose for lectin PA-IL and as a result, two representatives of the dendrimers were able to decrease adhesion of P. aeruginosa to bronchial cells to approximately 32% and 42%, respectively. The results may provide an opportunity to develop anti-adhesion therapy for the treatment of P. aeruginosa infection.
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Affiliation(s)
- Lenka Malinovská
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic.
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic.
| | - Son Thai Le
- Department of Pharmaceutical Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary.
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary.
| | - Mihály Herczeg
- Department of Pharmaceutical Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary.
- Research Group for Oligosaccharide Chemistry of Hungarian Academy of Sciences, Egyetem tér 1, H-4032 Debrecen, Hungary.
| | - Michaela Vašková
- Department of Biochemistry, Faculty of Science, Charles University, Albertov 2030, 128 40 Prague 2, Czech Republic.
| | - Josef Houser
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic.
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic.
| | - Eva Fujdiarová
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic.
| | - Jan Komárek
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic.
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic.
| | - Petr Hodek
- Department of Biochemistry, Faculty of Science, Charles University, Albertov 2030, 128 40 Prague 2, Czech Republic.
| | - Anikó Borbás
- Department of Pharmaceutical Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary.
| | - Michaela Wimmerová
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic.
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic.
- Department of Biochemistry, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic.
| | - Magdolna Csávás
- Department of Pharmaceutical Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary.
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5
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Rabasa-Alcañiz F, Hammerl D, Sánchez-Merino A, Tejero T, Merino P, Fustero S, del Pozo C. Asymmetric synthesis of polycyclic 3-fluoroalkylproline derivatives by intramolecular azomethine ylide cycloaddition. Org Chem Front 2019. [DOI: 10.1039/c9qo00525k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The asymmetric intramolecular dipolar cycloaddition of azomethine ylides was developed for fluorinated dipolarophiles, being the RF group crucial for selectivity.
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Affiliation(s)
| | - Daniel Hammerl
- Departamento de Química Orgánica
- Universidad de Valencia
- E-46100 Burjassot
- Spain
| | | | - Tomás Tejero
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - Pedro Merino
- Instituto de Biocomputación y Fisica de Sistemas Complejos (BIFI)
- Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - Santos Fustero
- Departamento de Química Orgánica
- Universidad de Valencia
- E-46100 Burjassot
- Spain
- Laboratorio de Moléculas Orgánicas
| | - Carlos del Pozo
- Departamento de Química Orgánica
- Universidad de Valencia
- E-46100 Burjassot
- Spain
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