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Fang X, Zeng Y, Huang Y, Zhu Z, Lin S, Xu W, Zheng C, Hu X, Qiu Y, Ruan Z. Electrochemical synthesis of peptide aldehydes via C‒N bond cleavage of cyclic amines. Nat Commun 2024; 15:5181. [PMID: 38890290 PMCID: PMC11189564 DOI: 10.1038/s41467-024-49223-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 05/29/2024] [Indexed: 06/20/2024] Open
Abstract
Peptide aldehydes are crucial biomolecules essential to various biological systems, driving a continuous demand for efficient synthesis methods. Herein, we develop a metal-free, facile, and biocompatible strategy for direct electrochemical synthesis of unnatural peptide aldehydes. This electro-oxidative approach enabled a step- and atom-economical ring-opening via C‒N bond cleavage, allowing for homoproline-specific peptide diversification and expansion of substrate scope to include amides, esters, and cyclic amines of various sizes. The remarkable efficacy of the electro-synthetic protocol set the stage for the efficient modification and assembly of linear and macrocyclic peptides using a concise synthetic sequence with racemization-free conditions. Moreover, the combination of experiments and density functional theory (DFT) calculations indicates that different N-acyl groups play a decisive role in the reaction activity.
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Affiliation(s)
- Xinyue Fang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, PR China
| | - Yong Zeng
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, PR China
| | - Yawen Huang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, PR China
| | - Zile Zhu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, PR China
| | - Shengsheng Lin
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, PR China
| | - Wenyan Xu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, PR China
| | - Chengwei Zheng
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, PR China
| | - Xinwei Hu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, PR China.
| | - Youai Qiu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, PR China.
| | - Zhixiong Ruan
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, PR China.
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2
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Muszalska-Kolos I, Dwiecki PM. Searching for Conjugates as New Structures for Antifungal Therapies. J Med Chem 2024. [PMID: 38470824 DOI: 10.1021/acs.jmedchem.3c01750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
The progressive increase in fungal infections and the decrease in the effectiveness of current therapy explain research on new drugs. The synthesis of compounds with proven antifungal activity, favorable physicochemical and pharmacokinetic properties affecting their pharmaceutical availability and bioavailability, and limiting or eliminating side effects has become the goal of many studies. The publication describes the directions of searching for new compounds with antifungal activity, focusing on conjugates. The described modifications include, among others, azoles or amphotericin B in combination with fatty acids, polysaccharides, proteins, and synthetic polymers. The benefits of these combinations in terms of activity, mechanism of action, and bioavailability were indicated. The possibilities of creating or using nanoparticles, "umbrella" conjugates, siderophores (iron-chelating compounds), and monoclonal antibodies were also presented. Taking into account the role of vaccinations in prevention, the scope of research related to developing a vaccine protecting against fungal infections was also indicated.
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Affiliation(s)
- Izabela Muszalska-Kolos
- Chair and Department of Pharmaceutical Chemistry, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznan, Poland
| | - Piotr Mariusz Dwiecki
- Chair and Department of Pharmaceutical Chemistry, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznan, Poland
- Pharmaceutical Company "Ziołolek" Sp. z o.o., Starolecka 189, 61-341 Poznan, Poland
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Tiwari P, Shivhare V, Ahuja R, Khan N, Shukla DN, Mishra AK, Basu A, Dutt Konar A. A Homochiral Diphenylalanine Analog Based Mechanoresponsive Hydrogel: An Insight Towards Its Wound Healing Efficacy. Chem Biodivers 2023; 20:e202300622. [PMID: 37615615 DOI: 10.1002/cbdv.202300622] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 08/24/2023] [Accepted: 08/24/2023] [Indexed: 08/25/2023]
Abstract
Deciphering the most promising strategy for the evolution of potential wound-healing therapeutics is one of the greatest challenging affairs to date. The development of peptide-based smart scaffolds with innate antimicrobial, anti-inflammatory, and antioxidant properties is an appealing way out. Aligned to the goal a set of Hydrogelators I-IV were developed utilizing the concept of chiral orchestration in diphenylalanine fragment, such that the most potent construct with all the bench marks namely mechanoresponsiveness, biocompatibility, consistent antimicrobial and antioxidant properties, could be fished out from the design. Interestingly, our in vitro Antifungal and Lipid peroxidation analysis identified the homochiral isomer Boc-δ-Ava-L-Phe-L-Phe-OH (Hydrogelator I), as an ideal candidate for the wound healing experiment, so we proceeded for the in vivo histopathological and antioxidant measurements in Wister rats. Indeed the wound images obtained from the different sets of animals on the 14th day of treatment demonstrated that with increased recovery time, hydrogelator I displayed a significant reduction in the lesion diameter compared to the marketed drug, and negative control. Even the histopathological measurements using H & E staining demonstrated diminished tissue destruction, neutrophil infiltration necrosis, and lymphatic proliferation in the hydrogelators, in comparison to others, backed by in vivo lipid peroxidation data. Overall our investigation certifies hydrogelator I as an effective therapeutic for managing the wound healing complication.
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Affiliation(s)
- Priyanka Tiwari
- Department of Applied Chemistry, Rajiv Gandhi Technological University, Bhopal, 462033, Madhya Pradesh, India
| | - Vaibhav Shivhare
- Department of Applied Chemistry, Rajiv Gandhi Technological University, Bhopal, 462033, Madhya Pradesh, India
| | - Rishabh Ahuja
- Department of Applied Chemistry, Rajiv Gandhi Technological University, Bhopal, 462033, Madhya Pradesh, India
| | - Naureen Khan
- Department of Applied Chemistry, Rajiv Gandhi Technological University, Bhopal, 462033, Madhya Pradesh, India
| | - Durgesh Nandan Shukla
- Faculty of Pharmacy, VNS Group of Institutions, Bhopal, 462044, Madhya Pradesh, India
| | - Ankit K Mishra
- Faculty of Pharmacy, VNS Group of Institutions, Bhopal, 462044, Madhya Pradesh, India
| | - Anindya Basu
- School of Pharmaceutical Sciences, Rajiv Gandhi Technological University, Bhopal, India
- University Grants Commission, New Delhi -, 110002, New Delhi, India
| | - Anita Dutt Konar
- Department of Applied Chemistry, Rajiv Gandhi Technological University, Bhopal, 462033, Madhya Pradesh, India
- School of Pharmaceutical Sciences, Rajiv Gandhi Technological University, Bhopal, India
- University Grants Commission, New Delhi -, 110002, New Delhi, India
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Rowland L, Marjault HB, Karmi O, Grant D, Webb LJ, Friedler A, Nechushtai R, Elber R, Mittler R. A combination of a cell penetrating peptide and a protein translation inhibitor kills metastatic breast cancer cells. Cell Death Discov 2023; 9:325. [PMID: 37652915 PMCID: PMC10471752 DOI: 10.1038/s41420-023-01627-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 08/15/2023] [Accepted: 08/23/2023] [Indexed: 09/02/2023] Open
Abstract
Cell Penetrating Peptides (CPPs) are promising anticancer and antimicrobial drugs. We recently reported that a peptide derived from the human mitochondrial/ER membrane-anchored NEET protein, Nutrient Autophagy Factor 1 (NAF-1; NAF-144-67), selectively permeates and kills human metastatic epithelial breast cancer cells (MDA-MB-231), but not control epithelial cells. As cancer cells alter their phenotype during growth and metastasis, we tested whether NAF-144-67 would also be efficient in killing other human epithelial breast cancer cells that may have a different phenotype. Here we report that NAF-144-67 is efficient in killing BT-549, Hs 578T, MDA-MB-436, and MDA-MB-453 breast cancer cells, but that MDA-MB-157 cells are resistant to it. Upon closer examination, we found that MDA-MB-157 cells display a high content of intracellular vesicles and cellular protrusions, compared to MDA-MB-231 cells, that could protect them from NAF-144-67. Inhibiting the formation of intracellular vesicles and dynamics of cellular protrusions of MDA-MB-157 cells, using a protein translation inhibitor (the antibiotic Cycloheximide), rendered these cells highly susceptible to NAF-144-67, suggesting that under certain conditions, the killing effect of CPPs could be augmented when they are applied in combination with an antibiotic or chemotherapy agent. These findings could prove important for the treatment of metastatic cancers with CPPs and/or treatment combinations that include CPPs.
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Affiliation(s)
- Linda Rowland
- Department of Surgery, University of Missouri School of Medicine, Christopher S. Bond Life Sciences Center University of Missouri, 1201 Rollins Street, Columbia, MO, 65201, USA
| | - Henri-Baptiste Marjault
- Department of Surgery, University of Missouri School of Medicine, Christopher S. Bond Life Sciences Center University of Missouri, 1201 Rollins Street, Columbia, MO, 65201, USA
| | - Ola Karmi
- The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem, 9190401, Israel
| | - DeAna Grant
- Electron Microscopy Core Facility, University of Missouri, 0011 NextGen Precision Health Institute, 1030 Hitt Street, Columbia, MO, 65211, USA
| | - Lauren J Webb
- Department of Chemistry, The University of Texas at Austin, 2506 Speedway STOP A5300, Austin, TX, 78712, USA
| | - Assaf Friedler
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem, 9190401, Israel
| | - Rachel Nechushtai
- The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem, 9190401, Israel
| | - Ron Elber
- Institute for Computational Engineering and Science and Department of Chemistry, University of Texas at Austin, Austin, TX, 78712, USA
| | - Ron Mittler
- Department of Surgery, University of Missouri School of Medicine, Christopher S. Bond Life Sciences Center University of Missouri, 1201 Rollins Street, Columbia, MO, 65201, USA.
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Khan N, Gupta A, shivhare V, Ahuja R, Varshney M, Basu A, DuttKonar A. A Heterochiral Diphenylalanine Auxin Derivative empowers Remarkable Mechanical Integrity with promising Antiinflammatory and Antimicrobial Performances. NEW J CHEM 2022. [DOI: 10.1039/d2nj03240f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The emergence of drug-resistant microbes in conjunction with antiinflammatory responses are one of the universal challenges in health care avenues. Although scientists have dedicated enormous efforts to discover potential constructs,...
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Synthesis and antibacterial study of cell-penetrating peptide conjugated trifluoroacetyl and thioacetyl lysine modified peptides. Eur J Med Chem 2021; 219:113447. [PMID: 33892275 DOI: 10.1016/j.ejmech.2021.113447] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/18/2021] [Accepted: 04/01/2021] [Indexed: 11/23/2022]
Abstract
Substrate-based sirtuin inhibitors target bacterial genome and RNA and provide a promising approach to address bacterial resistance issues, if cellular internalisation can be achieved. We designed N-trifluoroacetyl lysine and N-thioacetyl lysine peptides (KP 13, KP 15 and KP 24) as inhibitors of bacterial sirtuins and their cell-penetrating peptide conjugates Tat KP 13, Tat KP 15 and Tat KP 24. The conjugated peptides were successfully internalised and showed signs of bacterial transcription inhibition resulting in enhanced antibacterial potency against model Gram negative and Gram positive pathogens. Synergistic activity in combination with streptomycin and polymyxin B has also been established. These peptides were effective in inhibiting biofilm formation and eradicating preformed biofilms. Morphological analysis using both SEM and TEM showed bacterial membrane disruption. Calcein dye leakage analysis established the selectivity of these peptides to bacterial membranes. This study documents the first report of the application of substrate-based sirtuin inhibitors as antimicrobial therapeutics.
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Ciociola T, Giovati L, Conti S, Magliani W. Anti-Infective Antibody-Derived Peptides Active against Endogenous and Exogenous Fungi. Microorganisms 2021; 9:microorganisms9010143. [PMID: 33435157 PMCID: PMC7827253 DOI: 10.3390/microorganisms9010143] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 01/05/2021] [Accepted: 01/06/2021] [Indexed: 12/18/2022] Open
Abstract
Mycoses still represent relevant opportunistic infections worldwide, although overshadowed in recent years by other severe and more widespread infections. Moreover, deep-seated mycoses are often accompanied by unacceptably high mortality rates. Etiologic agents include endogenous components of the mycobiota, Candida and Malassezia species above all, and exogenous species, both yeasts and filamentous fungi. Old and new fungal pathogens are increasingly characterized by resistance to the existing antifungal agents, making imperative the search for effective and safe new therapeutics. Among the candidate molecules proposed in recent decades, synthetic peptides derived from the complementarity determining and constant regions of diverse antibodies (Abs), as well as the translated products of Ab-encoding genes, have proved of considerable interest. Their anti-infective activities, regardless of the specificity and isotype of the originating Ab, will be briefly presented and discussed in the light of their different mechanisms of action. Intriguing suggestions on the possible function of Abs after their half-life will be presented, following the recent detection, in human serum, of an antimicrobial Ab-derived peptide. Overall, Abs could represent a source of biologically active, highly flexible peptides, devoid of detectable toxicity, which can be easily synthesized and manipulated to be used, alone or in association with already available drugs, for new anti-infective strategies.
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Das AK, Gavel PK. Low molecular weight self-assembling peptide-based materials for cell culture, antimicrobial, anti-inflammatory, wound healing, anticancer, drug delivery, bioimaging and 3D bioprinting applications. SOFT MATTER 2020; 16:10065-10095. [PMID: 33073836 DOI: 10.1039/d0sm01136c] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this review, we have focused on the design and development of low molecular weight self-assembling peptide-based materials for various applications including cell proliferation, tissue engineering, antibacterial, antifungal, anti-inflammatory, anticancer, wound healing, drug delivery, bioimaging and 3D bioprinting. The first part of the review describes about stimuli and various noncovalent interactions, which are the key components of various self-assembly processes for the construction of organized structures. Subsequently, the chemical functionalization of the peptides has been discussed, which is required for the designing of self-assembling peptide-based soft materials. Various low molecular weight self-assembling peptides have been discussed to explain the important structural features for the construction of defined functional nanostructures. Finally, we have discussed various examples of low molecular weight self-assembling peptide-based materials for cell culture, antimicrobial, anti-inflammatory, anticancer, wound healing, drug delivery, bioimaging and 3D bioprinting applications.
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Affiliation(s)
- Apurba K Das
- Department of Chemistry, Indian Institute of Technology Indore, Indore 453552, India.
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Gordon RE, Nemeth JF, Singh S, Lingham RB, Grewal IS. Harnessing SLE Autoantibodies for Intracellular Delivery of Biologic Therapeutics. Trends Biotechnol 2020; 39:298-310. [PMID: 32807530 DOI: 10.1016/j.tibtech.2020.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/12/2020] [Accepted: 07/13/2020] [Indexed: 12/18/2022]
Abstract
Intracellular delivery of therapeutic antibodies is highly desirable but remains a challenge for biomedical research and the pharmaceutical industry. Approximately two-thirds of disease-associated targets are found inside the cell. Difficulty blocking these targets with available drugs creates a need for technology to deliver highly specific therapeutic antibodies intracellularly. Historically, antibodies have not been believed to traverse the cell membrane and neutralize intracellular targets. Emerging evidence has revealed that anti-DNA autoantibodies found in systemic lupus erythematosus (SLE) patients can penetrate inside the cell. Harnessing this technology has the potential to accelerate the development of drugs against intracellular targets. Here, we dissect the mechanisms of the intracellular localization of SLE antibodies and discuss how to apply these insights to engineer successful cell-penetrating antibody drugs.
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Affiliation(s)
- Renata E Gordon
- Janssen Biotherapeutics, The Janssen Pharmaceutical Companies of Johnson & Johnson, 1400 McKean Road, Spring House, PA 19477, USA
| | - Jennifer F Nemeth
- Janssen Biotherapeutics, The Janssen Pharmaceutical Companies of Johnson & Johnson, 1400 McKean Road, Spring House, PA 19477, USA
| | - Sanjaya Singh
- Janssen Biotherapeutics, The Janssen Pharmaceutical Companies of Johnson & Johnson, 1400 McKean Road, Spring House, PA 19477, USA
| | - Russell B Lingham
- Janssen Biotherapeutics, The Janssen Pharmaceutical Companies of Johnson & Johnson, 1400 McKean Road, Spring House, PA 19477, USA
| | - Iqbal S Grewal
- Janssen Biotherapeutics, The Janssen Pharmaceutical Companies of Johnson & Johnson, 1400 McKean Road, Spring House, PA 19477, USA.
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Yin H, Huang YH, Deprey K, Condon ND, Kritzer JA, Craik DJ, Wang CK. Cellular Uptake and Cytosolic Delivery of a Cyclic Cystine Knot Scaffold. ACS Chem Biol 2020; 15:1650-1661. [PMID: 32315152 DOI: 10.1021/acschembio.0c00297] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cyclotides are macrocyclic peptides with exceptionally stable structures and have been reported to penetrate cells, making them promising scaffolds for the delivery of inhibitory peptides to target intracellular proteins. However, their cellular uptake and cytosolic localization have been poorly understood until now, which has limited their therapeutic potential. In this study, the recently developed chloroalkane penetration assay was combined with established assays to characterize the cellular uptake and cytosolic delivery of the prototypic cyclotide, kalata B1. We show that kalata B1 enters the cytosol at low efficiency. A structure-activity study of residues in loop 6 showed that some modifications, such as increasing cationic residue content, did not affect delivery efficiency, whereas others, including introducing a single hydrophobic amino acid, did significantly improve cytosolic delivery. Our results provide a foundation for the further development of a structurally unique class of scaffolds for the delivery of therapeutic cargoes into cells.
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Affiliation(s)
- Huawu Yin
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Yen-Hua Huang
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Kirsten Deprey
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - Nicholas D. Condon
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Joshua A. Kritzer
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - David J. Craik
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Conan K. Wang
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
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