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Chavda VP, Teli D, Balar PC, Davidson M, Bojarska J, Vaghela DA, Apostolopoulos V. Self-assembled peptide hydrogels for the treatment of diabetes and associated complications. Colloids Surf B Biointerfaces 2024; 235:113761. [PMID: 38281392 DOI: 10.1016/j.colsurfb.2024.113761] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 11/27/2023] [Accepted: 01/14/2024] [Indexed: 01/30/2024]
Abstract
Diabetes is a widespread epidemic that includes a number of comorbid conditions that greatly increase the chance of acquiring other chronic illnesses. Every year, there are significantly more people with diabetes because of the rise in type-2 diabetes prevalence. The primary causes of illness and mortality worldwide are, among these, hyperglycemia and its comorbidities. There has been a lot of interest in the creation of peptide-based hydrogels as a potentially effective platform for the treatment of diabetes and its consequences. Here, we emphasize the use of self-assembled hydrogel formulations and their unique potential for the treatment/management of type-2 diabetes and its consequences. (i.e., wounds). Key aspects covered include the characteristics of self-assembled peptide hydrogels, methods for their preparation, and their pre-clinical and clinical applications in addressing metabolic disorders such as type-2 diabetes.
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Affiliation(s)
- Vivek P Chavda
- Department of Pharmaceutics and Pharmaceutical Technology, L.M. College of Pharmacy, Ahmedabad, India.
| | - Divya Teli
- Department of Pharmaceutical Chemistry, L. M. College of Pharmacy, Ahmedabad 380009, Gujarat, India
| | - Pankti C Balar
- Pharmacy section, L.M. College of Pharmacy, Ahmedabad, India
| | - Majid Davidson
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
| | - Joanna Bojarska
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromski S.t, 90-924 Lodz, Poland.
| | - Dixa A Vaghela
- Pharmacy section, L.M. College of Pharmacy, Ahmedabad, India
| | - Vasso Apostolopoulos
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia; Immunology Program, Australian Institute for Musculoskeletal Science, Melbourne, VIC, Australia.
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Chavda VP, Balar PC, Dodiya P, Bojarska J. Nanocarrier-based delivery of peptides: challenges and way forward. Nanomedicine (Lond) 2023; 18:1903-1906. [PMID: 37955577 DOI: 10.2217/nnm-2023-0273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023] Open
Affiliation(s)
- Vivek P Chavda
- Department of Pharmaceutics & Pharmaceutical Technology, L.M. College of Pharmacy, Ahmedabad, 380009, India
| | - Pankti C Balar
- Pharmacy section, L.M. College of Pharmacy, Ahmedabad, 380009, India
| | - Payal Dodiya
- Pharmacy section, L.M. College of Pharmacy, Ahmedabad, 380009, India
| | - Joanna Bojarska
- Institute of General & Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology,116 Zeromski St., 90-924 Lodz, Poland
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3
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Felifel NT, Sliem MA, Kamel Z, Bojarska J, Seadawy MG, Amin RM, Elnagdy SM. Antimicrobial Photodynamic Therapy against Escherichia coli and Staphylococcus aureus Using Nanoemulsion-Encapsulated Zinc Phthalocyanine. Microorganisms 2023; 11:1143. [PMID: 37317117 DOI: 10.3390/microorganisms11051143] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 03/13/2023] [Revised: 04/21/2023] [Accepted: 04/21/2023] [Indexed: 06/16/2023] Open
Abstract
Multidrug-resistant microorganisms have become a significant public health threat, and traditional antibiotics are becoming ineffective. Photodynamic therapy (PDT) is a promising alternative that utilizes photosensitizers and light to produce Reactive Oxygen Species (ROS) that can kill microorganisms. Zinc phthalocyanine (ZnPc) is a promising photosensitizer due to its strong affinity for encapsulation in nanoemulsions and its antimicrobial properties. In this study, nanoemulsion was prepared using Miglyol 812N, a surfactant, and distilled water to dissolve hydrophobic drugs such as ZnPc. The nanoemulsion was characterized by its particle size, polydispersity index, Transmission Electron Microscope and Zeta potential, and the results showed that it was an efficient nanocarrier system that facilitated the solubilization of hydrophobic drugs in water. The use of ZnPc encapsulated in the nanoemulsion produced through the spontaneous emulsification method resulted in a significant reduction in cell survival percentages of gram-positive Staphylococcus aureus and gram-negative Escherichia coli by 85% and 75%, respectively. This may be attributed to the more complex cell membrane structure of E. coli compared to S. aureus. This demonstrates the potential of nanoemulsion-based PDT as an effective alternative to traditional antibiotics for treating multidrug-resistant microorganisms.
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Affiliation(s)
- Nada T Felifel
- Botany and Microbiology Department, Faculty of Science, Cairo University, Gamma St., Giza 12613, Egypt
| | - Mahmoud A Sliem
- National Institute of Laser Enhanced Sciences (NILES), Cairo University, Giza 12613, Egypt
| | - Zienat Kamel
- Botany and Microbiology Department, Faculty of Science, Cairo University, Gamma St., Giza 12613, Egypt
| | - Joanna Bojarska
- Faculty of Chemistry, Institute of General and Ecological Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Lodz, Poland
| | - Mohamed G Seadawy
- Biological Prevention Department, Ministry of Defense, Cairo 11766, Egypt
| | - Rehab M Amin
- National Institute of Laser Enhanced Sciences (NILES), Cairo University, Giza 12613, Egypt
| | - Sherif M Elnagdy
- Botany and Microbiology Department, Faculty of Science, Cairo University, Gamma St., Giza 12613, Egypt
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Quah Y, Tong SR, Bojarska J, Giller K, Tan SA, Ziora ZM, Esatbeyoglu T, Chai TT. Bioactive Peptide Discovery from Edible Insects for Potential Applications in Human Health and Agriculture. Molecules 2023; 28:molecules28031233. [PMID: 36770900 PMCID: PMC9921607 DOI: 10.3390/molecules28031233] [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] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/11/2023] [Accepted: 01/16/2023] [Indexed: 01/31/2023] Open
Abstract
In the past decade, there has been fast-growing interest among researchers to discover bioactive peptides from edible insects and to evaluate their potential applications in the management of human, livestock, and plant health. This review summarizes current knowledge of insect-derived peptides and their potential role in tackling human health issues and solving agriculture problems by protecting crops and livestock against their pathogens. Numerous bioactive peptides have been identified from edible insect species, including peptides that were enzymatically liberated from insect proteins and endogenous peptides that occur naturally in insects. The peptides exhibited diverse bioactivities, encompassing antioxidant, anti-angiotensin-converting enzyme, anti-dipeptidyl peptidase-IV, anti-glucosidase, anti-lipase, anti-lipoxygenase, anti-cyclooxygenase, anti-obesity, and hepatoprotective activities. Such findings point to their potential contribution to solving human health problems related to inflammation, free radical damage, diabetes, hypertension, and liver damage, among others. Although most of the experiments were performed in vitro, evidence for the in vivo efficacy of some peptides is emerging. Evidence of the protective effects of insect-derived endogenous antimicrobial peptides in combating farm animal and plant pathogens is available. The ability of insect-derived endogenous neuropeptides to protect plants against herbivorous insects has been demonstrated as well. Nevertheless, the potency of peptides identified from insect protein hydrolysates in modulating livestock and plant health remains a knowledge gap to be filled.
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Affiliation(s)
- Yixian Quah
- Developmental and Reproductive Toxicology Research Group, Korea Institute of Toxicology, Daejeon 34114, Republic of Korea
| | - Shi-Ruo Tong
- Department of Physical Science, Faculty of Applied Sciences, Tunku Abdul Rahman University of Management and Technology, Setapak, Kuala Lumpur 53300, Malaysia
| | - Joanna Bojarska
- Department of Chemistry, Technical University of Lodz, Zeromskiego 116, 90-924 Lodz, Poland
| | - Katrin Giller
- Institute of Agricultural Sciences, ETH Zurich, Universitätstrasse 2, 8092 Zurich, Switzerland
| | - Sheri-Ann Tan
- Department of Bioscience, Faculty of Applied Sciences, Tunku Abdul Rahman University of Management and Technology, Setapak, Kuala Lumpur 53300, Malaysia
| | - Zyta Maria Ziora
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Tuba Esatbeyoglu
- Department of Food Development and Food Quality, Institute of Food Science and Human Nutrition, Gottfried Wilhelm Leibniz University Hannover, Am Kleinen Felde 30, 30167 Hannover, Germany
| | - Tsun-Thai Chai
- Department of Chemical Science, Faculty of Science, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, Kampar 31900, Malaysia
- Center for Agriculture and Food Research, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, Kampar 31900, Malaysia
- Correspondence:
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Chavda VP, Solanki HK, Davidson M, Apostolopoulos V, Bojarska J. Peptide-Drug Conjugates: A New Hope for Cancer Management. Molecules 2022; 27:7232. [PMID: 36364057 PMCID: PMC9658517 DOI: 10.3390/molecules27217232] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/29/2022] [Accepted: 10/18/2022] [Indexed: 08/07/2023] Open
Abstract
Cancer remains the leading cause of death worldwide despite advances in treatment options for patients. As such, safe and effective therapeutics are required. Short peptides provide advantages to be used in cancer management due to their unique properties, amazing versatility, and progress in biotechnology to overcome peptide limitations. Several appealing peptide-based therapeutic strategies have been developed. Here, we provide an overview of peptide conjugates, the better equivalents of antibody-drug conjugates, as the next generation of drugs for required precise targeting, enhanced cellular permeability, improved drug selectivity, and reduced toxicity for the efficient treatment of cancers. We discuss the basic components of drug conjugates and their release action, including the release of cytotoxins from the linker. We also present peptide-drug conjugates under different stages of clinical development as well as regulatory and other challenges.
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Affiliation(s)
- Vivek P. Chavda
- Department of Pharmaceutics and Pharmaceutical Technology, L M College of Pharmacy, Ahmedabad 380008, Gujarat, India
| | - Hetvi K. Solanki
- Department of Pharmaceutics and Pharmaceutical Technology, L M College of Pharmacy, Ahmedabad 380008, Gujarat, India
| | - Majid Davidson
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3030, Australia
| | - Vasso Apostolopoulos
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3030, Australia
- Immunology Program, Australian Institute for Musculoskeletal Science, Melbourne, VIC 3021, Australia
| | - Joanna Bojarska
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego Street, 90-924 Lodz, Poland
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Apostolopoulos V, Bojarska J, Feehan J, Matsoukas J, Wolf W. Smart therapies against global pandemics: A potential of short peptides. Front Pharmacol 2022; 13:914467. [PMID: 36046832 PMCID: PMC9420997 DOI: 10.3389/fphar.2022.914467] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 07/01/2022] [Indexed: 12/20/2022] Open
Affiliation(s)
- Vasso Apostolopoulos
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
- Immunology Program, Australian Institute for Musculoskeletal Science (AIMSS), Melbourne, VIC, Australia
| | - Joanna Bojarska
- Technical University of Lodz, Department of Chemistry, Institute of General and Ecological Chemistry, Lodz, Poland
- *Correspondence: Joanna Bojarska,
| | - Jack Feehan
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
| | - John Matsoukas
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- NewDrug, Patras Science Park, Patras, Greece
| | - Wojciech Wolf
- Technical University of Lodz, Department of Chemistry, Institute of General and Ecological Chemistry, Lodz, Poland
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Bojarska J. Supramolecular landscape of bio-complex: versatility of peptide-based synthons. Acta Crystallogr A Found Adv 2022. [DOI: 10.1107/s2053273322098503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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8
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Bojarska J. Supramolecular structuring of cyclo-dipeptides. Acta Crystallogr A Found Adv 2022. [DOI: 10.1107/s2053273322098497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Moore GJ, Ridgway H, Kelaidonis K, Chasapis CT, Ligielli I, Mavromoustakos T, Bojarska J, Matsoukas JM. Actions of Novel Angiotensin Receptor Blocking Drugs, Bisartans, Relevant for COVID-19 Therapy: Biased Agonism at Angiotensin Receptors and the Beneficial Effects of Neprilysin in the Renin Angiotensin System. Molecules 2022; 27:molecules27154854. [PMID: 35956801 PMCID: PMC9369639 DOI: 10.3390/molecules27154854] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/20/2022] [Accepted: 07/26/2022] [Indexed: 11/17/2022]
Abstract
Angiotensin receptor blockers (ARBs) used in the treatment of hypertension and potentially in SARS-CoV-2 infection exhibit inverse agonist effects at angiotensin AR1 receptors, suggesting the receptor may have evolved to accommodate naturally occurring angiotensin ‘antipeptides’. Screening of the human genome has identified a peptide (EGVYVHPV) encoded by mRNA, complementary to that encoding ANG II itself, which is an inverse agonist. Thus, opposite strands of DNA encode peptides with opposite effects at AR1 receptors. Agonism and inverse agonism at AR1 receptors can be explained by a receptor ‘switching’ between an activated state invoking receptor dimerization/G protein coupling and an inverse agonist state mediated by an alternative/second messenger that is slow to reverse. Both receptor states appear to be driven by the formation of the ANG II charge-relay system involving TyrOH-His/imidazole-Carboxylate (analogous to serine proteases). In this system, tyrosinate species formed are essential for activating AT1 and AT2 receptors. ANGII is also known to bind to the zinc-coordinated metalloprotease angiotensin converting enzyme 2 (ACE2) used by the COVID-19 virus to enter cells. Here we report in silico results demonstrating the binding of a new class of anionic biphenyl-tetrazole sartans (‘Bisartans’) to the active site zinc atom of the endopeptidase Neprilysin (NEP) involved in regulating hypertension, by modulating humoral levels of beneficial vasoactive peptides in the RAS such as vasodilator angiotensin (1–7). In vivo and modeling evidence further suggest Bisartans can inhibit ANG II-induced pulmonary edema and may be useful in combatting SARS-CoV-2 infection by inhibiting ACE2-mediated viral entry to cells.
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Affiliation(s)
- Graham J. Moore
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
- Pepmetics Inc., 772 Murphy Place, Victoria, BC V8Y 3H4, Canada
- Correspondence: (G.J.M.); (J.M.M.)
| | - Harry Ridgway
- Institute for Sustainable Industries and Liveable Cities, Victoria University, Melbourne, VIC 8001, Australia;
- AquaMem Consultants, Rodeo, New Mexico, NM 88056, USA
| | | | - Christos T. Chasapis
- NMR Facility, Instrumental Analysis Laboratory, School of Natural Sciences, University of Patras, 26504 Patras, Greece;
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology, Hellas (FORTH/ICE-HT), 26504 Patras, Greece
| | - Irene Ligielli
- Department of Chemistry, National and Kapodistrian University of Athens, 15784 Athens, Greece; (I.L.); (T.M.)
| | - Thomas Mavromoustakos
- Department of Chemistry, National and Kapodistrian University of Athens, 15784 Athens, Greece; (I.L.); (T.M.)
| | - Joanna Bojarska
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland;
| | - John M. Matsoukas
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
- NewDrug PC, Patras Science Park, 26504 Patras, Greece;
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3030, Australia
- Correspondence: (G.J.M.); (J.M.M.)
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Chavda VP, Ajabiya J, Teli D, Bojarska J, Apostolopoulos V. Tirzepatide, a New Era of Dual-Targeted Treatment for Diabetes and Obesity: A Mini-Review. Molecules 2022; 27:molecules27134315. [PMID: 35807558 PMCID: PMC9268041 DOI: 10.3390/molecules27134315] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/28/2022] [Accepted: 07/04/2022] [Indexed: 02/07/2023] Open
Abstract
The prevalence of obesity and diabetes is an increasing global problem, especially in developed countries, and is referred to as the twin epidemics. As such, advanced treatment approaches are needed. Tirzepatide, known as a ‘twincretin’, is a ‘first-in-class’ and the only dual glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic peptide (GIP) receptor agonist, that can significantly reduce glycemic levels and improve insulin sensitivity, as well as reducing body weight by more than 20% and improving lipid metabolism. This novel anti-diabetic drug is a synthetic peptide analog of the human GIP hormone with a C20 fatty-diacid portion attached which, via acylation technology, can bind to albumin in order to provide a dose of the drug, by means of subcutaneous injection, once a week, which is appropriate to its a half-life of about five days. Tirzepatide, developed by Eli Lilly, was approved, under the brand name Mounjaro, by the United States Food and Drug Administration in May 2022. This started the ‘twincretin’ era of enormously important and appealing dual therapeutic options for diabetes and obesity, as well as advanced management of closely related cardiometabolic settings, which constitute the leading cause of morbidity, disability, and mortality worldwide. Herein, we present the key characteristics of tirzepatide in terms of synthesis, structure, and activity, bearing in mind its advantages and shortcomings. Furthermore, we briefly trace the evolution of this kind of medical agent and discuss the development of clinical studies.
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Affiliation(s)
- Vivek P. Chavda
- Department of Pharmaceutics and Pharmaceutical Technology, LM College of Pharmacy, Ahmedabad 380009, India
- Correspondence: (V.P.C.); (J.B.); (V.A.)
| | - Jinal Ajabiya
- Department of Pharmaceutics Analysis and Quality Assurance, LM College of Pharmacy, Ahmedabad 380009, India;
| | - Divya Teli
- Department of Pharmaceutical Chemistry, LM College of Pharmacy, Ahmedabad 380009, India;
| | - Joanna Bojarska
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Żeromskiego Street, 90-924 Lodz, Poland
- Correspondence: (V.P.C.); (J.B.); (V.A.)
| | - Vasso Apostolopoulos
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3030, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), Immunology Program, Melbourne, VIC 3030, Australia
- Correspondence: (V.P.C.); (J.B.); (V.A.)
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Affiliation(s)
- Joanna Bojarska
- Department of Chemistry, Technical University of Lodz, Zeromskiego 116, 90-924 Lodz, Poland
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Bojarska J, Wolf WM, Fruziński A, Kaczmarek K, Lesnikowski ZJ, Kraj A, Zielenkiewicz P, Madura ID, Borowiecki P, Remko M, Breza M. Supramolecular synthon hierarchy in cyclopropyl-containing peptide-derived compounds. CrystEngComm 2022. [DOI: 10.1039/d2ce01231f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Recognizing the increasing importance of cyclopropyl containing peptide-derived compounds in the pharma industry, here we report the crystal engineering of a series of novel derivatives, i.e. diethyl 2-acetamido-2-(cyclopropylmethyl)malonate (1), 2-(cyclopropylmethyl)-2-acetamidopropanedioic...
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Bojarska J, Mieczkowski A, Ziora ZM, Skwarczynski M, Toth I, Shalash AO, Parang K, El-Mowafi SA, Mohammed EHM, Elnagdy S, AlKhazindar M, Wolf WM. Cyclic Dipeptides: The Biological and Structural Landscape with Special Focus on the Anti-Cancer Proline-Based Scaffold. Biomolecules 2021; 11:1515. [PMID: 34680148 PMCID: PMC8533947 DOI: 10.3390/biom11101515] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [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: 09/18/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 12/12/2022] Open
Abstract
Cyclic dipeptides, also know as diketopiperazines (DKP), the simplest cyclic forms of peptides widespread in nature, are unsurpassed in their structural and bio-functional diversity. DKPs, especially those containing proline, due to their unique features such as, inter alia, extra-rigid conformation, high resistance to enzyme degradation, increased cell permeability, and expandable ability to bind a diverse of targets with better affinity, have emerged in the last years as biologically pre-validated platforms for the drug discovery. Recent advances have revealed their enormous potential in the development of next-generation theranostics, smart delivery systems, and biomaterials. Here, we present an updated review on the biological and structural profile of these appealing biomolecules, with a particular emphasis on those with anticancer properties, since cancers are the main cause of death all over the world. Additionally, we provide a consideration on supramolecular structuring and synthons, based on the proline-based DKP privileged scaffold, for inspiration in the design of compound libraries in search of ideal ligands, innovative self-assembled nanomaterials, and bio-functional architectures.
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Affiliation(s)
- Joanna Bojarska
- Faculty of Chemistry, Institute of General & Inorganic Chemistry, Technical University of Lodz, 90-924 Lodz, Poland;
| | - Adam Mieczkowski
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland;
| | - Zyta M. Ziora
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia; (Z.M.Z.); (I.T.)
| | - Mariusz Skwarczynski
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (M.S.); (A.O.S.)
| | - Istvan Toth
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia; (Z.M.Z.); (I.T.)
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (M.S.); (A.O.S.)
- School of Pharmacy, The University of Queensland, Woolloongabba, QLD 4102, Australia
| | - Ahmed O. Shalash
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (M.S.); (A.O.S.)
| | - Keykavous Parang
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Harry and Diane Rinker Health Science Campus, School of Pharmacy, Chapman University, Irvine, CA 92618, USA; (K.P.); (S.A.E.-M.); (E.H.M.M.)
| | - Shaima A. El-Mowafi
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Harry and Diane Rinker Health Science Campus, School of Pharmacy, Chapman University, Irvine, CA 92618, USA; (K.P.); (S.A.E.-M.); (E.H.M.M.)
| | - Eman H. M. Mohammed
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Harry and Diane Rinker Health Science Campus, School of Pharmacy, Chapman University, Irvine, CA 92618, USA; (K.P.); (S.A.E.-M.); (E.H.M.M.)
| | - Sherif Elnagdy
- Botany Department, Faculty of Science, Cairo University, Giza 12613, Egypt; (S.E.); (M.A.)
| | - Maha AlKhazindar
- Botany Department, Faculty of Science, Cairo University, Giza 12613, Egypt; (S.E.); (M.A.)
| | - Wojciech M. Wolf
- Faculty of Chemistry, Institute of General & Inorganic Chemistry, Technical University of Lodz, 90-924 Lodz, Poland;
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Bojarska J, Apostolopous V, Matsoukas J, Feehan J, Ridgway H, Zielenkiewicz P, Wolf WM. The role of structural biology in pandemic's puzzles: amino acids and short peptides as key players. Acta Crystallogr A Found Adv 2021. [DOI: 10.1107/s0108767321089030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Bojarska J. The first supramolecular consideration on crystal of DFMO – promising antiviral and anticancer pan-drug. Acta Crystallogr A Found Adv 2021. [DOI: 10.1107/s0108767321085019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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Bojarska J, New R, Borowiecki P, Remko M, Breza M, Madura ID, Fruziński A, Pietrzak A, Wolf WM. The First Insight Into the Supramolecular System of D,L-α-Difluoromethylornithine: A New Antiviral Perspective. Front Chem 2021; 9:679776. [PMID: 34055746 PMCID: PMC8155678 DOI: 10.3389/fchem.2021.679776] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 04/26/2021] [Indexed: 12/28/2022] Open
Abstract
Targeting the polyamine biosynthetic pathway by inhibiting ornithine decarboxylase (ODC) is a powerful approach in the fight against diverse viruses, including SARS-CoV-2. Difluoromethylornithine (DFMO, eflornithine) is the best-known inhibitor of ODC and a broad-spectrum, unique therapeutical agent. Nevertheless, its pharmacokinetic profile is not perfect, especially when large doses are required in antiviral treatment. This article presents a holistic study focusing on the molecular and supramolecular structure of DFMO and the design of its analogues toward the development of safer and more effective formulations. In this context, we provide the first deep insight into the supramolecular system of DFMO supplemented by a comprehensive, qualitative and quantitative survey of non-covalent interactions via Hirshfeld surface, molecular electrostatic potential, enrichment ratio and energy frameworks analysis visualizing 3-D topology of interactions in order to understand the differences in the cooperativity of interactions involved in the formation of either basic or large synthons (Long-range Synthon Aufbau Modules, LSAM) at the subsequent levels of well-organized supramolecular self-assembly, in comparison with the ornithine structure. In the light of the drug discovery, supramolecular studies of amino acids, essential constituents of proteins, are of prime importance. In brief, the same amino-carboxy synthons are observed in the bio-system containing DFMO. DFT calculations revealed that the biological environment changes the molecular structure of DFMO only slightly. The ADMET profile of structural modifications of DFMO and optimization of its analogue as a new promising drug via molecular docking are discussed in detail.
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Affiliation(s)
- Joanna Bojarska
- Chemistry Department, Institute of Ecological and Inorganic Chemistry, Technical University of Lodz, Lodz, Poland
| | - Roger New
- Faculty of Science & Technology, Middlesex University, London, United Kingdom
| | - Paweł Borowiecki
- Faculty of Chemistry, Department of Drugs Technology and Biotechnology, Laboratory of Biocatalysis and Biotransformation, Warsaw University of Technology, Warsaw, Poland
| | | | - Martin Breza
- Department of Physical Chemistry, Slovak Technical University, Bratislava, Slovakia
| | - Izabela D. Madura
- Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland
| | - Andrzej Fruziński
- Chemistry Department, Institute of Ecological and Inorganic Chemistry, Technical University of Lodz, Lodz, Poland
| | - Anna Pietrzak
- Chemistry Department, Institute of Ecological and Inorganic Chemistry, Technical University of Lodz, Lodz, Poland
| | - Wojciech M. Wolf
- Chemistry Department, Institute of Ecological and Inorganic Chemistry, Technical University of Lodz, Lodz, Poland
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Apostolopoulos V, Bojarska J, Chai TT, Elnagdy S, Kaczmarek K, Matsoukas J, New R, Parang K, Lopez OP, Parhiz H, Perera CO, Pickholz M, Remko M, Saviano M, Skwarczynski M, Tang Y, Wolf WM, Yoshiya T, Zabrocki J, Zielenkiewicz P, AlKhazindar M, Barriga V, Kelaidonis K, Sarasia EM, Toth I. A Global Review on Short Peptides: Frontiers and Perspectives. Molecules 2021; 26:E430. [PMID: 33467522 PMCID: PMC7830668 DOI: 10.3390/molecules26020430] [Citation(s) in RCA: 147] [Impact Index Per Article: 49.0] [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: 12/01/2020] [Revised: 12/23/2020] [Accepted: 01/09/2021] [Indexed: 12/13/2022] Open
Abstract
Peptides are fragments of proteins that carry out biological functions. They act as signaling entities via all domains of life and interfere with protein-protein interactions, which are indispensable in bio-processes. Short peptides include fundamental molecular information for a prelude to the symphony of life. They have aroused considerable interest due to their unique features and great promise in innovative bio-therapies. This work focusing on the current state-of-the-art short peptide-based therapeutical developments is the first global review written by researchers from all continents, as a celebration of 100 years of peptide therapeutics since the commencement of insulin therapy in the 1920s. Peptide "drugs" initially played only the role of hormone analogs to balance disorders. Nowadays, they achieve numerous biomedical tasks, can cross membranes, or reach intracellular targets. The role of peptides in bio-processes can hardly be mimicked by other chemical substances. The article is divided into independent sections, which are related to either the progress in short peptide-based theranostics or the problems posing challenge to bio-medicine. In particular, the SWOT analysis of short peptides, their relevance in therapies of diverse diseases, improvements in (bio)synthesis platforms, advanced nano-supramolecular technologies, aptamers, altered peptide ligands and in silico methodologies to overcome peptide limitations, modern smart bio-functional materials, vaccines, and drug/gene-targeted delivery systems are discussed.
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Affiliation(s)
- Vasso Apostolopoulos
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3030, Australia; (V.A.); (J.M.); (V.B.)
| | - Joanna Bojarska
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Lodz, Poland
| | - Tsun-Thai Chai
- Department of Chemical Science, Faculty of Science, Universiti Tunku Abdul Rahman, Kampar 31900, Malaysia;
| | - Sherif Elnagdy
- Botany and Microbiology Department, Faculty of Science, Cairo University, Gamaa St., Giza 12613, Egypt; (S.E.); (M.A.)
| | - Krzysztof Kaczmarek
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Lodz, Poland; (K.K.); (J.Z.)
| | - John Matsoukas
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3030, Australia; (V.A.); (J.M.); (V.B.)
- NewDrug, Patras Science Park, 26500 Patras, Greece;
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Roger New
- Vaxcine (UK) Ltd., c/o London Bioscience Innovation Centre, London NW1 0NH, UK;
- Faculty of Science & Technology, Middlesex University, The Burroughs, London NW4 4BT, UK;
| | - Keykavous Parang
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA;
| | - Octavio Paredes Lopez
- Centro de Investigación y de Estudios Avanzados del IPN, Departamento de Biotecnología y Bioquímica, Irapuato 36824, Guanajuato, Mexico;
| | - Hamideh Parhiz
- Infectious Disease Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104-6073, USA;
| | - Conrad O. Perera
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand;
| | - Monica Pickholz
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina;
- Instituto de Física de Buenos Aires (IFIBA, UBA-CONICET), Argentina, Buenos Aires 1428, Argentina
| | - Milan Remko
- Remedika, Luzna 9, 85104 Bratislava, Slovakia;
| | - Michele Saviano
- Institute of Crystallography (CNR), Via Amendola 122/o, 70126 Bari, Italy;
| | - Mariusz Skwarczynski
- School of Chemistry & Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia; (M.S.); (I.T.)
| | - Yefeng Tang
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (MOE), School of Pharma Ceutical Sciences, Tsinghua University, Beijing 100084, China;
| | - Wojciech M. Wolf
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Lodz, Poland
| | | | - Janusz Zabrocki
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Lodz, Poland; (K.K.); (J.Z.)
| | - Piotr Zielenkiewicz
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland;
- Department of Systems Biology, Institute of Experimental Plant Biology and Biotechnology, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland
| | - Maha AlKhazindar
- Botany and Microbiology Department, Faculty of Science, Cairo University, Gamaa St., Giza 12613, Egypt; (S.E.); (M.A.)
| | - Vanessa Barriga
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3030, Australia; (V.A.); (J.M.); (V.B.)
| | | | | | - Istvan Toth
- School of Chemistry & Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia; (M.S.); (I.T.)
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD 4072, Australia
- School of Pharmacy, The University of Queensland, Woolloongabba, QLD 4102, Australia
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Bojarska J, Remko M, Breza M, Madura I, Fruziński A, Wolf WM. A Proline-Based Tectons and Supramolecular Synthons for Drug Design 2.0: A Case Study of ACEI. Pharmaceuticals (Basel) 2020; 13:E338. [PMID: 33114370 PMCID: PMC7692516 DOI: 10.3390/ph13110338] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/20/2020] [Accepted: 10/22/2020] [Indexed: 11/16/2022] Open
Abstract
Proline is a unique, endogenous amino acid, prevalent in proteins and essential for living organisms. It is appreciated as a tecton for the rational design of new bio-active substances. Herein, we present a short overview of the subject. We analyzed 2366 proline-derived structures deposited in the Cambridge Structure Database, with emphasis on the angiotensin-converting enzyme inhibitors. The latter are the first-line antihypertensive and cardiological drugs. Their side effects prompt a search for improved pharmaceuticals. Characterization of tectons (molecular building blocks) and the resulting supramolecular synthons (patterns of intermolecular interactions) involving proline derivatives, as presented in this study, may be useful for in silico molecular docking and macromolecular modeling studies. The DFT, Hirshfeld surface and energy framework methods gave considerable insight into the nature of close inter-contacts and supramolecular topology. Substituents of proline entity are important for the formation and cooperation of synthons. Tectonic subunits contain proline moieties characterized by diverse ionization states: -N and -COOH(-COO-), -N+ and -COOH(-COO-), -NH and -COOH(-COO-), -NH+ and -COOH(-COO-), and -NH2+ and -COOH(-COO-). Furthermore, pharmacological profiles of ACE inhibitors and their impurities were determined via an in silico approach. The above data were used to develop comprehensive classification, which may be useful in further drug design studies.
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Affiliation(s)
- Joanna Bojarska
- Faculty of Chemistry, Institute of General and Ecological Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Lodz, Poland; (A.F.); (W.M.W.)
| | - Milan Remko
- Remedika, Luzna 9, 85104 Bratislava, Slovakia;
| | - Martin Breza
- Department of Physical Chemistry, Slovak Technical University, Radlinskeho 9, SK-81237 Bratislava, Slovakia;
| | - Izabela Madura
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland;
| | - Andrzej Fruziński
- Faculty of Chemistry, Institute of General and Ecological Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Lodz, Poland; (A.F.); (W.M.W.)
| | - Wojciech M. Wolf
- Faculty of Chemistry, Institute of General and Ecological Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Lodz, Poland; (A.F.); (W.M.W.)
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Bojarska J, Remko M, Madura ID, Kaczmarek K, Zabrocki J, Wolf WM. Synthesis, experimental and in silico studies of N-fluorenylmethoxycarbonyl-O-tert-butyl-N-methyltyrosine, coupled with CSD data: a survey of interactions in the crystal structures of Fmoc-amino acids. Acta Crystallogr C Struct Chem 2020; 76:328-345. [PMID: 32229714 DOI: 10.1107/s2053229620003009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 03/03/2020] [Indexed: 12/31/2022]
Abstract
Recently, fluorenylmethoxycarbonyl (Fmoc) amino acids (e.g. Fmoc-tyrosine or Fmoc-phenylalanine) have attracted growing interest in biomedical research and industry, with special emphasis directed towards the design and development of novel effective hydrogelators, biomaterials or therapeutics. With this in mind, a systematic knowledge of the structural and supramolecular features in recognition of those properties is essential. This work is the first comprehensive summary of noncovalent interactions combined with a library of supramolecular synthon patterns in all crystal structures of amino acids with the Fmoc moiety reported so far. Moreover, a new Fmoc-protected amino acid, namely, 2-{[(9H-fluoren-9-ylmethoxy)carbonyl](methyl)amino}-3-{4-[(2-hydroxypropan-2-yl)oxy]phenyl}propanoic acid or N-fluorenylmethoxycarbonyl-O-tert-butyl-N-methyltyrosine, Fmoc-N-Me-Tyr(t-Bu)-OH, C29H31NO5, was successfully synthesized and the structure of its unsolvated form was determined by single-crystal X-ray diffraction. The structural, conformational and energy landscape was investigated in detail by combined experimental and in silico approaches, and further compared to N-Fmoc-phenylalanine [Draper et al. (2015). CrystEngComm, 42, 8047-8057]. Geometries were optimized by the density functional theory (DFT) method either in vacuo or in solutio. The polarizable conductor calculation model was exploited for the evaluation of the hydration effect. Hirshfeld surface analysis revealed that H...H, C...H/H...C and O...H/H...O interactions constitute the major contributions to the total Hirshfeld surface area in all the investigated systems. The molecular electrostatic potentials mapped over the surfaces identified the electrostatic complementarities in the crystal packing. The prediction of weak hydrogen-bonded patterns via Full Interaction Maps was computed. Supramolecular motifs formed via C-H...O, C-H...π, (fluorenyl)C-H...Cl(I), C-Br...π(fluorenyl) and C-I...π(fluorenyl) interactions are observed. Basic synthons, in combination with the Long-Range Synthon Aufbau Modules, further supported by energy-framework calculations, are discussed. Furthermore, the relevance of Fmoc-based supramolecular hydrogen-bonding patterns in biocomplexes are emphasized, for the first time.
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Affiliation(s)
- Joanna Bojarska
- Institute of General and Ecological Chemistry, Lodz University of Technology, Faculty of Chemistry, Żeromskiego 116, Lodz 90-924, Poland
| | - Milan Remko
- Remedika, Sustekova 1, 85104 Bratislava, Slovakia
| | - Izabela D Madura
- Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, 00-664 Warszawa, Poland
| | - Krzysztof Kaczmarek
- Institute of Organic Chemistry, Lodz University of Technology, Faculty of Chemistry, Żeromskiego 116, Lodz 90-924, Poland
| | - Janusz Zabrocki
- Institute of Organic Chemistry, Lodz University of Technology, Faculty of Chemistry, Żeromskiego 116, Lodz 90-924, Poland
| | - Wojciech M Wolf
- Institute of General and Ecological Chemistry, Lodz University of Technology, Faculty of Chemistry, Żeromskiego 116, Lodz 90-924, Poland
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Bojarska J, Remko M, Breza M, Madura ID, Kaczmarek K, Zabrocki J, Wolf WM. A Supramolecular Approach to Structure-Based Design with A Focus on Synthons Hierarchy in Ornithine-Derived Ligands: Review, Synthesis, Experimental and in Silico Studies. Molecules 2020; 25:E1135. [PMID: 32138329 PMCID: PMC7179192 DOI: 10.3390/molecules25051135] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [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: 01/31/2020] [Revised: 02/20/2020] [Accepted: 03/02/2020] [Indexed: 12/24/2022] Open
Abstract
The success of innovative drugs depends on an interdisciplinary and holistic approach to their design and development. The supramolecular architecture of living systems is controlled by non-covalent interactions to a very large extent. The latter are prone to extensive cooperation and like a virtuoso play a symphony of life. Thus, the design of effective ligands should be based on thorough knowledge on the interactions at either a molecular or high topological level. In this work, we emphasize the importance of supramolecular structure and ligand-based design keeping the potential of supramolecular H-bonding synthons in focus. In this respect, the relevance of supramolecular chemistry for advanced therapies is appreciated and undisputable. It has developed tools, such as Hirshfeld surface analysis, using a huge data on supramolecular interactions in over one million structures which are deposited in the Cambridge Structure Database (CSD). In particular, molecular interaction surfaces are useful for identification of macromolecular active sites followed by in silico docking experiments. Ornithine-derived compounds are a new, promising class of multi-targeting ligands for innovative therapeutics and cosmeceuticals. In this work, we present the synthesis together with the molecular and supramolecular structure of a novel ornithine derivative, namely N-α,N-δ)-dibenzoyl-(α)-hydroxymethylornithine, 1. It was investigated by modern experimental and in silico methods in detail. The incorporation of an aromatic system into the ornithine core induces stacking interactions, which are vital in biological processes. In particular, rare C=O…π intercontacts have been identified in 1. Supramolecular interactions were analyzed in all structures of ornithine derivatives deposited in the CSD. The influence of substituent was assessed by the Hirshfeld surface analysis. It revealed that the crystal packing is stabilized mainly by H…O, O…H, C…H, Cl (Br, F)…H and O…O interactions. Additionally, π…π, C-H…π and N-O…π interactions were also observed. All relevant H-bond energies were calculated using the Lippincott and Schroeder H-bond model. A library of synthons is provided. In addition, the large synthons (Long-Range Synthon Aufbau Module) were considered. The DFT optimization either in vacuo or in solutio yields very similar molecular species. The major difference with the relevant crystal structure was related to the conformation of terminal benzoyl C15-C20 ring. Furthermore, in silico prediction of the extensive physicochemical ADME profile (absorption, distribution, metabolism and excretion) related to the drug-likeness and medicinal chemistry friendliness revealed that a novel ornithine derivative 1 has the potential to be a new drug candidate. It has shown good in silico absorption and very low toxicity.
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Affiliation(s)
- Joanna Bojarska
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Lodz, Poland;
| | - Milan Remko
- Remedika, Sustekova, 1 85104 Bratislava, Slovakia;
| | - Martin Breza
- Department of Physical Chemistry, Slovak Technical University, Radlinskeho 9, SK-81237 Bratislava, Slovakia;
| | - Izabela D. Madura
- Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, 00-664 Warszawa, Poland;
| | - Krzysztof Kaczmarek
- Institute of Organic Chemistry, Lodz University of Technology, Faculty of Chemistry, Żeromskiego 116, 90-924 Lodz, Poland; (K.K.); (J.Z.)
| | - Janusz Zabrocki
- Institute of Organic Chemistry, Lodz University of Technology, Faculty of Chemistry, Żeromskiego 116, 90-924 Lodz, Poland; (K.K.); (J.Z.)
| | - Wojciech M. Wolf
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Lodz, Poland;
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Bojarska J, Wolf W, Zabrocki J, Kaczmarek K, Remko M. New synthons in supramolecular chemistry of short biologically active peptides. Acta Crystallogr A Found Adv 2019. [DOI: 10.1107/s205327331908968x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Bojarska J, Remko M, Madura ID, Wojciechowski JM, Olczak A, Kaczmarek K, Zabrocki J, Wolf WM. Supramolecular synthon polymorphism in modified amino acids. Structural, conformational and energy landscapes of N-benzoyl-2′-hydroxy-3-methylisovaline. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.04.045] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Bojarska J, Fruziński A, Sieroń L, Maniukiewicz W. The first insight into the supramolecular structures of popular drug repaglinide: Focus on intermolecular interactions in antidiabetic agents. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.10.051] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Maniukiewicz W, Bojarska J, Sieroń L. Analysis of supramolecular interactions in alendroniate alkali metal salts: synthesis, structure, and properties of novel sodium alendronate polymorph. Struct Chem 2018. [DOI: 10.1007/s11224-018-1140-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Bojarska J, Remko M, Fruziński A, Maniukiewicz W. The experimental and theoretical landscape of a new antiplatelet drug ticagrelor: Insight into supramolecular architecture directed by C H⋯F, π⋯π and C H⋯π interactions. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Bojarska J, Maniukiewicz W. Investigation of intermolecular interactions in finasteride drug crystals in view of X-ray and Hirshfeld surface analysis. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.06.076] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dobrosz-Gómez I, Gómez-García M, López Zamora S, GilPavas E, Bojarska J, Kozanecki M, Rynkowski J. Transition metal loaded TiO2 for phenol photo-degradation. CR CHIM 2015. [DOI: 10.1016/j.crci.2015.03.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Dobrosz-Gómez I, Gómez-García MÁ, Bojarska J, Kozanecki M, Rynkowski JM. Combustion synthesis and properties of nanocrystalline zirconium oxide. CR CHIM 2015. [DOI: 10.1016/j.crci.2015.02.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Remko M, Bojarska J, Remková A, Maniukiewicz W. Molecular structure and acidity of captopril, zofenopril and their metabolites captopril disulfide and zofenoprilat. COMPUT THEOR CHEM 2015. [DOI: 10.1016/j.comptc.2015.03.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Bojarska J, Maniukiewicz W, Fruziński A, Sieroń L, Remko M. Captopril and its dimer captopril disulfide: comparative structural and conformational studies. Acta Crystallogr C Struct Chem 2015; 71:199-203. [PMID: 25734850 DOI: 10.1107/s2053229615002582] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 02/06/2015] [Indexed: 11/10/2022]
Abstract
The crystal structures of captopril {systematic name: (2S)-1-[(2S)-2-methyl-3-sulfanylpropanoyl]pyrrolidine-2-carboxylic acid}, C(9)H(15)NO(3)S, (1), and its dimer disulfide metabolite, 1,1'-{disulfanediylbis[(2S)-2-methyl-1-oxopropane-3,1-diyl]}bis-L-proline, C(18)H(28)N(2)O(6)S(2), (2), were determined by single-crystal X-ray diffraction analysis. Compound (1) crystallizes in the orthorhombic space group P2(1)2(1)2(1), while compound (2) crystallizes in the monoclinic space group P2(1), both with one molecule per asymmetric unit. The molecular geometries of (1) and (2) are quite similar, but certain differences appear in the conformations of the five-membered proline rings and the side chains containing the sulfhydryl group. The proline ring adopts an envelope conformation in (1), while in (2) it exists in envelope and slightly deformed half-chair conformations. The conformation adopted by the side chain is extended in (1) and folded in (2). A minimum-energy conformational search using Monte Carlo methods in the aqueous phase reveals that the optimized conformations of the title compounds differ from those determined crystallographically, which depend on their immediate environment. Intermolecular O-H...O and relatively weak C-H...O interactions seem to be effective in both structures and, together with S-H...O and C-H...S contacts, they create three-dimensional networks.
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Affiliation(s)
- Joanna Bojarska
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Waldemar Maniukiewicz
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Andrzej Fruziński
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Lesław Sieroń
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Milan Remko
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Comenius University Bratislava, Odbojarov 10, SK-832 32 Bratislava, Slovakia
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Bojarska J, Maniukiewicz W, Fruziński A, Jędrzejczyk M, Wojciechowski J, Krawczyk H. Structural and spectroscopic characterization and Hirshfeld surface analysis of major component of antibiotic mupirocin – pseudomonic acid A. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.07.049] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bojarska J, Maniukiewicz W, Sieroń L. Three new olanzapine structures: the acetic acid monosolvate, and the propan-2-ol and propan-2-one hemisolvate monohydrates. Acta Crystallogr C 2013; 69:781-6. [PMID: 23832043 DOI: 10.1107/s010827011301411x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Accepted: 05/21/2013] [Indexed: 11/10/2022] Open
Abstract
The crystal structures of three new solvates of olanzapine [systematic name: 2-methyl-4-(4-methylpiperazin-1-yl)-10H-thieno[2,3-b][1,5]benzodiazepine], namely olanzapine acetic acid monosolvate, C17H20N4S·C2H4O2, (I), olanzapine propan-2-ol hemisolvate monohydrate, C17H20N4S·0.5C3H8O·H2O, (II), and olanzapine propan-2-one hemisolvate monohydrate, C17H20N4S·0.5C3H6O·H2O, (III), are presented and compared with other known olanzapine forms. There is a fairly close resemblance of the molecular conformation for all studied analogues. The crystal structures are built up through olanzapine dimers, which are characterized via C-H...π interactions between the aliphatic fragment (1-methylpiperazin-4-yl) and the aromatic fragment (benzene system). All solvent (guest) molecules participate in hydrogen-bonding networks. The crystal packing is sustained via intermolecular N(host)-H···O(guest), O(guest)-H···N(host), O(guest)-H···O(guest) and C(host)-H···O(guest) hydrogen bonds. It should be noted that the solvent propan-2-ol in (II) and propan-2-one in (III) show orientational disorder. The propan-2-ol molecule lies close to a twofold axis, while the propan-2-one molecule resides strictly on a twofold axis through the carbonyl C atom. In both cases, the water molecules present positional disorder of the H atoms.
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Affiliation(s)
- Joanna Bojarska
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Łódź University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
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Bojarska J, Maniukiewicz W, Sieroń L, Remko M. An orthorhombic polymorph of a cyclization product of perindopril. Acta Crystallogr C 2013; 69:630-3. [PMID: 23744384 DOI: 10.1107/s0108270113011025] [Citation(s) in RCA: 6] [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] [Received: 08/31/2012] [Accepted: 04/23/2013] [Indexed: 11/10/2022] Open
Abstract
Low-temperature X-ray diffraction experiments were employed to investigate the crystal structures of an orthorhombic polymorph of the intramolecular cyclization product of perindopril, a popular angiotensive-converting enzyme (ACE) inhibitor, namely ethyl (2S)-2-[(3S,5aS,9aS,10aS)-3-methyl-1,4-dioxo-5a,6,7,8,9,9a,10,10a-octahydro-3H-pyrazino[1,2-a]indol-2-yl]pentanoate, C19H30N2O4, (Io), and its tetragonal equivalent, (It), which was previously reported at ambient temperature [Bojarska et al. (2013). J. Chil. Chem. Soc. 58, 1415-1417]. Polymorph (Io) crystallizes in the orthorhombic space group P2(1)2(1)2(1) with two molecules in the asymmetric unit, while tetragonal form (It) crystallizes in the space group P4(1)2(1)2 with one molecule in the asymmetric unit. The geometric parameters of (Io) are very similar to those of (It). The six-membered rings in both polymorphs adopt a slightly deformed chair conformation and the piperazinedione rings are in a boat conformation. However, the proline rings adopt an envelope conformation in (Io), while in (It) the ring exists in a slightly deformed half-chair conformation. The most significant difference between the two structures is the orientation of the ethyl pentanoate chain. Molecules associate in pairs in a head-to-tail manner forming infinite columns. In (Io), molecules are related by a twofold screw axis forming identical columns, while in (It), molecules in successive neighbouring columns are related by alternating twofold screw axes and fourfold screw axes. In both cases, the crystal packing is stabilized by weak intermolecular C-H···O interactions only.
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Affiliation(s)
- Joanna Bojarska
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
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Remko M, Bojarska J, Ježko P, Maniukiewicz W, Olczak A. Molecular structure of antihypertensive drug perindopril, its active metabolite perindoprilat and impurity F. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.11.070] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bojarska J, Maniukiewicz W, Sieroń L, Kopczacki P, Walczyński K, Remko M. Perindoprilat monohydrate. Acta Crystallogr C 2012; 68:o443-6. [PMID: 23124459 DOI: 10.1107/s0108270112041583] [Citation(s) in RCA: 7] [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] [Received: 09/24/2012] [Accepted: 10/04/2012] [Indexed: 11/10/2022] Open
Abstract
The title compound [systematic name: (1S)-2-((S)-{1-[(2S,3aS,7aS)-2-carboxyoctahydro-1H-indol-1-yl]-1-oxopropan-2-yl}azaniumyl)pentanoate monohydrate], C(17)H(28)N(2)O(5)·H(2)O, (I)·H(2)O, the active metabolite of the antihypertensive and cardiovascular drug perindopril, was obtained during polymorphism screening of perindoprilat. It crystallizes in the chiral orthorhombic space group P2(1)2(1)2(1), the same as the previously reported ethanol disolvate [Pascard, Guilhem, Vincent, Remond, Portevin & Laubie (1991). J. Med. Chem. 34, 663-669] and dimethyl sulfoxide hemisolvate [Bojarska, Maniukiewicz, Sieroń, Fruziński, Kopczacki, Walczyński & Remko (2012). Acta Cryst. C68, o341-o343]. The asymmetric unit of (I)·H(2)O contains one independent perindoprilat zwitterion and one water molecule. These interact via strong hydrogen bonds to give a cyclic R(2)(2)(7) synthon, which provides a rigid molecular conformation. The geometric parameters of all three forms are similar. The conformations of the perhydroindole group are almost identical, but the n-alkyl chain has conformational freedom. A three-dimensional hydrogen-bonding network of O-H···O and N-H···O interactions is observed in the crystal structure of (I)·H(2)O, similar to the other two solvates, but because of the presence of different solvents the three crystal structures have diverse packing motifs. All three solvatomorphs are additionally stabilized by nonclassical weak C-H···O contacts.
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Affiliation(s)
- Joanna Bojarska
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
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Bojarska J, Maniukiewicz W, Sieroń L, Fruziński A, Kopczacki P, Walczyński K, Remko M. Novel pseudopolymorph of the active metabolite of perindopril. Acta Crystallogr C 2012; 68:o341-3. [PMID: 22935500 DOI: 10.1107/s0108270112032349] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Accepted: 07/16/2012] [Indexed: 11/11/2022] Open
Abstract
The dimethyl sulfoxide hemisolvate of perindoprilat [systematic name: (1S)-2-((S)-{1-[(2S,3aS,7aS)-2-carboxyoctahydro-1H-indol-1-yl]-1-oxopropan-2-yl}azaniumyl)pentanoate dimethyl sulfoxide hemisolvate], C(17)H(28)N(2)O(5)·0.5C(2)H(6)OS, an active metabolite of perindopril, has been synthesized, structurally characterized by single-crystal X-ray diffraction and compared with its ethanol disolvate analogue [Pascard et al. (1991). J. Med. Chem. 34, 663-669]. Both compounds crystallize in the orthorhombic P2(1)2(1)2(1) space group in the same zwitterionic form, with a protonated alanine N atom and an anionic carboxylate group at the n-alkyl chain. The three structural units present in the unit cell (two zwitterions and the solvent molecule) are held together by a rich system of O-H···O, N-H···O and C-H···O hydrogen-bond contacts.
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Affiliation(s)
- Joanna Bojarska
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
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Maniukiewicz W, Bojarska J, Olczak A, Dobruchowska E, Wiatrowski M. 2,9-Di-3-pentyl-anthra[1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10-tetrone. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o2570-1. [PMID: 21587555 PMCID: PMC2983203 DOI: 10.1107/s1600536810036275] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Accepted: 09/09/2010] [Indexed: 12/02/2022]
Abstract
The asymmetric unit of the title compound, C34H30N2O4, contains four independent half-molecules, the complete molecules being generated by inversion symmetry. The molecules each have planar (within 4σ) perylenetetracarboxylic diimide fragments with bent side chains. In one of the independent molecules, each 3-pentyl fragment is disordered over two conformations in a 7:3 ratio. In the crystal, π–π interactions link molecules into stacks propagated in [010]. The crystal packing also exhibits weak intermolecular C—H⋯O hydrogen bonds.
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Olczak A, Główka ML, Szczesio M, Bojarska J, Wawrzak Z, Duax WL. The first crystal structure of a gramicidin complex with sodium: high-resolution study of a nonstoichiometric gramicidin D-NaI complex. Acta Crystallogr D Biol Crystallogr 2010; 66:874-80. [PMID: 20693686 DOI: 10.1107/s0907444910019876] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2010] [Accepted: 05/26/2010] [Indexed: 05/26/2023]
Abstract
The crystal structure of the nonstoichiometric complex of gramicidin D with NaI has been studied using synchrotron radiation at 100 K. The limiting resolution was 1.25 A and the R factor was 16% for 19 883 observed reflections. The general architecture of the antiparallel two-stranded gramicidin dimers in the studied crystal was a right-handed antiparallel double-stranded form that closely resembles the structures of other right-handed species published to date. However, there were several surprising observations. In addition to the significantly different composition of linear gramicidins identified in the crystal structure, including the absence of the gramicidin C form, only two cationic sites were found in each of the two independent dimers (channels), which were partially occupied by sodium, compared with the seven sites found in the RbCl complex of gramicidin. The sum of the partial occupancies of Na(+) was only 1.26 per two dimers and was confirmed by the similar content of iodine ions (1.21 ions distributed over seven sites), which was easily visible from their anomalous signal. Another surprising observation was the significant asymmetry of the distributions and occupancies of cations in the gramicidin dimers, which was in contrast to those observed in the high-resolution structures of the complexes of heavier alkali metals with gramicidin D, especially that of rubidium.
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Affiliation(s)
- A Olczak
- Institute of General and Ecological Chemistry, Technical University of Łódź, Zeromskiego 116, 90-924 Łódź, Poland.
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Olczak A, Główka ML, Gołka J, Szczesio M, Bojarska J, Kozłowska K, Foks H, Orlewska C. Is planarity of pyridin-2-yl- and pyrazin-2-yl-formamide thiosemicarbazones related to their tuberculostatic activity? X-ray structures of two pyrazine-2-carboxamide-N′-carbonothioyl-hydrazones. J Mol Struct 2007. [DOI: 10.1016/j.molstruc.2006.07.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Olczak A, Główka ML, Szczesio M, Bojarska J, Duax WL, Burkhart BM, Wawrzak Z. Nonstoichiometric complex of gramicidin D with KI at 0.80 A resolution. Acta Crystallogr D Biol Crystallogr 2007; 63:319-27. [PMID: 17327669 DOI: 10.1107/s0907444906053649] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2006] [Accepted: 12/11/2006] [Indexed: 11/10/2022]
Abstract
The crystal structure of a nonstoichiometric complex of gramicidin D (gD) with KI has been determined at 100 K using synchrotron radiation. The final R factor was 0.106 for 83 988 observed reflections (Friedel pairs were not merged) collected to 0.80 A. The structure consists of four independent pentadecapeptides and numerous solvent molecules and salt ions. The general architecture of the antiparallel double-stranded gramicidin dimers in the crystal (a right-handed antiparallel DSbetaH(R) form) closely resembles that of previously published cation complexes of gD. However, a significantly different mixture of gramicidin isomers is found in the crystal of the KI complex, including partial occupancy of phenylalanine at position 11. Only three sites in each of the two crystallographically independent channels are partially occupied by potassium cations instead of the commonly observed seven sites. The sum of the partial occupancies of K(+) (1.10 per two dimers) is consistent with the sum of the iodide occupancies (1.095 over eight sites), which is also confirmed by the anomalous signal of the iodide. There was a significant asymmetry of the distribution and occupancies of cations in the crystallographically independent gramicidin channels, in contrast to the distribution found in the rubidium chloride complex with gD.
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Affiliation(s)
- A Olczak
- Institute of General and Ecological Chemistry, University of Technology, Łódź, Poland
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Szczesio M, Glowka ML, Olczak A, Bojarska J, Duax WL. Asymmetric distribution of cations binding sites in high resolution crystal structures of double-stranded gramicidin D complex with Na +and K +. Acta Crystallogr A 2006. [DOI: 10.1107/s010876730609708x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Główka ML, Olczak A, Bojarska J, Szczesio M, Duax WL, Burkhart BM, Pangborn WA, Langs DA, Wawrzak Z. Structure of gramicidin D-RbCl complex at atomic resolution from low-temperature synchrotron data: interactions of double-stranded gramicidin channel contents and cations with channel wall. Acta Crystallogr D Biol Crystallogr 2005; 61:433-41. [PMID: 15805598 DOI: 10.1107/s0907444905000399] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2004] [Accepted: 01/05/2005] [Indexed: 11/10/2022]
Abstract
Gramicidin D (gD) is a naturally occurring ionophoric antibiotic that forms membrane channels specific for monovalent cations. The crystal structure of the RbCl complex of gD has been determined at 1.14 A resolution from low-temperature (100 K) synchrotron-radiation data with a final R of 16%. The structure was refined with anisotropic temperature factors for all non-H atoms and with partial occupancies for many of them. The asymmetric unit in the crystal contains four crystallographically independent molecules that form two right-handed antiparallel double-stranded dimers. There are seven distinct rubidium-binding sites in each dimeric channel. The occupancy factors of Rb cations are between 0.11 and 0.35 and the total ion contents of the two crystallographically independent channels are 1.59 and 1.22 ions, respectively. Although each channel is 'chemically symmetrical', the side-chain conformations, the distributions of rubidium cations and their binding sites in the two independent channels are not. Cations are 'coordinated' by delocalized pi-electrons of three to five carbonyl groups that together with peptide backbone chains form the gramicidin channel walls. The water:cation ratio in the channel interior is four or five:one, and five or six waters separate Rb cations during their passage through the channel.
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Affiliation(s)
- M L Główka
- Institute of General and Ecological Chemistry, Technical University, Łódź, Poland.
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Glówka ML, Olczak A, Bojarska J, Szczesio M, Duax WL, Burkhart BM, Pangborn WA, Langs DA, Li N, Wawrzak Z. Ion channels in crystals of gramicidin D complex with RbCl. Atomic resolution low-temperature synchrotron X-ray data. Acta Crystallogr A 2004. [DOI: 10.1107/s0108767304096746] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Suchocki S, Bojarska J, Bojarski M, Poleszczuk J. [The influence of twenty years of Rh (D) factor incompatibility immunoprophylaxis on reducing the occurrence of hemolytic disease in newborns]. Ginekol Pol 2000; 71:876-8. [PMID: 11082940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
The study presents the frequency of occurrence of newborn haemolitic disease caused by Rh (D) system incompatibility in the years 1980-1999. Serological incompatibility prophylaxis was introduced in 1980. Routine use of anti-D immunoglobulin has led to a significant reduction in the number of newborns with haemalitic disease caused by Rh (D) system incompatibility. In the years 1990-1999 no newborn deaths attributable to this immunization were recorded. Long-term prophylaxis has greatly reduced the occurrence of this pathology in newborns. Nonetheless, in contemporary perinatology we continue to record occasional cases of haemolitic disease in newborns caused by blood group incompatibility between mother and foetus.
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Affiliation(s)
- S Suchocki
- Szpital Ginekologiczno-Połozniczy im. E. Biernackiego w Wałbrzychu
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