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Arad E, Levi T, Yosefi G, Kass I, Cohen-Erez I, Azoulay Z, Bitton R, Jelinek R, Rapaport H. A Matter of Charge: Electrostatically Tuned Coassembly of Amphiphilic Peptides. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2404324. [PMID: 39155426 DOI: 10.1002/smll.202404324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 08/04/2024] [Indexed: 08/20/2024]
Abstract
Coassembly of peptide biomaterials offers a compelling avenue to broaden the spectrum of hierarchically ordered supramolecular nanoscale structures that may be relevant for biomedical and biotechnological applications. In this work coassemblies of amphiphilic and oppositely charged, anionic and cationic, β-sheet peptides are studied, which may give rise to a diverse range of coassembled forms. Mixtures of the peptides show significantly lower critical coassembly concentration (CCC) values compared to those of the individual pure peptides. Intriguingly, the highest formation of coassembled fibrils is found to require excess of the cationic peptide whereas equimolar mixtures of the peptides exhibited the maximum folding into β-sheet structures. Mixtures of the peptides coassembled sequentially from solutions at concentrations surpassing each peptide's intrinsic critical assembly concentration (CAC), are also found to require a higher portion of the cationic peptide to stabilize hydrogels. This study illuminates a systematic investigation of oppositely charged β-sheet peptides over a range of concentrations, in solutions and in hydrogels. The results may be relevant to the fundamental understanding of such intricate charge-driven assembly systems and to the formulation of peptide-based nanostructures with diverse functionalities.
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Affiliation(s)
- Elad Arad
- Ilse Katz Institute (IKI) for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
- Department of Chemical Engineering, Columbia University in the City of New York, New York, NY, 10027, USA
| | - Topaz Levi
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben Gurion University of the Negev, Beer Sheva, 8410501, Israel
| | - Gal Yosefi
- Department of Chemical Engineering, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Itamar Kass
- Ilse Katz Institute (IKI) for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Ifat Cohen-Erez
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben Gurion University of the Negev, Beer Sheva, 8410501, Israel
| | - Ziv Azoulay
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben Gurion University of the Negev, Beer Sheva, 8410501, Israel
| | - Ronit Bitton
- Ilse Katz Institute (IKI) for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
- Department of Chemical Engineering, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Raz Jelinek
- Ilse Katz Institute (IKI) for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Hanna Rapaport
- Ilse Katz Institute (IKI) for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben Gurion University of the Negev, Beer Sheva, 8410501, Israel
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Arad E, Jelinek R. Catalytic physiological amyloids. Methods Enzymol 2024; 697:77-112. [PMID: 38816136 DOI: 10.1016/bs.mie.2024.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
Amyloid fibrils have been identified in many protein systems, mostly linked to progression and cytotoxicity in neurodegenerative diseases and other pathologies, but have also been observed in normal physiological systems. A growing body of work has shown that amyloid fibrils can catalyze chemical reactions. Most studies have focused on catalysis by de-novo synthetic amyloid-like peptides; however, recent studies reveal that physiological, native amyloids are catalytic as well. Here, we discuss methodologies and major experimental aspects pertaining to physiological catalytic amyloids. We highlight analyzes of kinetic parameters related to the catalytic activities of amyloid fibrils, structure-function considerations, characterization of the catalytic active sites, and deciphering of catalytic mechanisms.
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Affiliation(s)
- Elad Arad
- Ilse Katz Institute for Nanoscale Science and Technology and the Department of Chemistry, Ben Gurion University of the Negev, Beer Sheva, Israel; Department of Chemical Engineering, Columbia University in the City of New York, New York, NY, United States.
| | - Raz Jelinek
- Ilse Katz Institute for Nanoscale Science and Technology and the Department of Chemistry, Ben Gurion University of the Negev, Beer Sheva, Israel.
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Ma L, Huang S, Xie H, Ma P, Jia B, Yao Y, Gao Y, Li W, Song J, Zhang W. Influence of chain length on the anticancer activity of the antimicrobial peptide CAMEL with fatty acid modification. Eur J Med Chem 2022; 239:114557. [PMID: 35759906 DOI: 10.1016/j.ejmech.2022.114557] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 06/09/2022] [Accepted: 06/18/2022] [Indexed: 01/10/2023]
Abstract
Antimicrobial peptides (AMPs) display promising potential in cancer therapy. Modification with fatty acids is a simple and effective approach to improve the activity of AMPs. In the present study, we investigated the effects of fatty acid chain lengths on the anticancer activity, self-assembly and mechanism of action of CAMEL (CM15, KWKLFKKIGAVLKVL-NH2), an amphipathic AMP with 15 amino acids. Conjugation of fatty acids could obviously improve the in vitro anticancer activity of CAMEL. Among the tested peptides, C12-CAMEL showed the highest anticancer activity, while C16-CAMEL killed cancer cells with the slowest kinetics. This may be related to the self-assembly of C12-CAMEL and C16-CAMEL, which could form spherical nanoparticles and tightened nanofibers, respectively. In addition, necrosis and necroptosis rather than apoptosis were the major mechanisms underlying the anticancer activity of CAMEL, C12-CAMEL and C16-CAMEL, implying that modification with fatty acids did not obviously alter the mechanism of action of CAMEL. Notably, C12-CAMEL, with high and rapid cell-killing activity, exhibited significantly stronger in vivo anticancer activity than CAMEL and C16-CAMEL. Overall, the present work suggests that the choice of a suitable fatty acid for structural modification is necessary for improving the anticancer activity of AMPs.
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Affiliation(s)
- Ling Ma
- The Institute of Pharmacology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Sujie Huang
- Institute of Physiology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Huan Xie
- Department of Medical, Gansu Provincial Hospital, Lanzhou, 730000, China
| | - Panpan Ma
- Institute of Physiology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Bo Jia
- Institute of Physiology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Yufan Yao
- Institute of Physiology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Yuxuan Gao
- The Institute of Pharmacology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Wenyuan Li
- Institute of Physiology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Jingjing Song
- The Institute of Pharmacology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Wei Zhang
- Institute of Physiology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China; State Key Laboratory of Veterinary Etiological Biology, College of Veterinary Medicine, Lanzhou University, Lanzhou, 730000, China.
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Hjalte J, Hossain S, Hugerth A, Sjögren H, Wahlgren M, Larsson P, Lundberg D. Aggregation Behavior of Structurally Similar Therapeutic Peptides Investigated by 1H NMR and All-Atom Molecular Dynamics Simulations. Mol Pharm 2022; 19:904-917. [PMID: 35104408 PMCID: PMC8905580 DOI: 10.1021/acs.molpharmaceut.1c00883] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Understanding of peptide aggregation propensity is an important aspect in pharmaceutical development of peptide drugs. In this work, methodologies based on all-atom molecular dynamics (AA-MD) simulations and 1H NMR (in neat H2O) were evaluated as tools for identification and investigation of peptide aggregation. A series of structurally similar, pharmaceutically relevant peptides with known differences in aggregation behavior (D-Phe6-GnRH, ozarelix, cetrorelix, and degarelix) were investigated. The 1H NMR methodology was used to systematically investigate variations in aggregation with peptide concentration and time. Results show that 1H NMR can be used to detect the presence of coexisting classes of aggregates and the inclusion or exclusion of counterions in peptide aggregates. Interestingly, results suggest that the acetate counterions are included in aggregates of ozarelix and cetrorelix but not in aggregates of degarelix. The peptides investigated in AA-MD simulations (D-Phe6-GnRH, ozarelix, and cetrorelix) showed the same rank order of aggregation propensity as in the NMR experiments. The AA-MD simulations also provided molecular-level insights into aggregation dynamics, aggregation pathways, and the influence of different structural elements on peptide aggregation propensity and intermolecular interactions within the aggregates. Taken together, the findings from this study illustrate that 1H NMR and AA-MD simulations can be useful, complementary tools in early evaluation of aggregation propensity and formulation development for peptide drugs.
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Affiliation(s)
- Johanna Hjalte
- Food Technology, Engineering and Nutrition, Lund University, Box 124, 221 00 Lund, Sweden
| | - Shakhawath Hossain
- Department of Pharmacy, Drug Delivery, Uppsala University, Box 580, 751 23 Uppsala, Sweden
| | - Andreas Hugerth
- Ferring Pharmaceuticals A/S, Amager Strandvej 405, 2770 Kastrup, Denmark
| | - Helen Sjögren
- Ferring Pharmaceuticals A/S, Amager Strandvej 405, 2770 Kastrup, Denmark
| | - Marie Wahlgren
- Food Technology, Engineering and Nutrition, Lund University, Box 124, 221 00 Lund, Sweden
| | - Per Larsson
- Department of Pharmacy, Drug Delivery, Uppsala University, Box 580, 751 23 Uppsala, Sweden
| | - Dan Lundberg
- CR Competence AB, Center for Chemistry and Chemical Engineering, Box 124, 221 00 Lund, Sweden
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Cabri W, Cantelmi P, Corbisiero D, Fantoni T, Ferrazzano L, Martelli G, Mattellone A, Tolomelli A. Therapeutic Peptides Targeting PPI in Clinical Development: Overview, Mechanism of Action and Perspectives. Front Mol Biosci 2021; 8:697586. [PMID: 34195230 PMCID: PMC8236712 DOI: 10.3389/fmolb.2021.697586] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 06/01/2021] [Indexed: 12/14/2022] Open
Abstract
Targeting protein-protein interactions (PPIs) has been recently recognized as an emerging therapeutic approach for several diseases. Up today, more than half a million PPI dysregulations have been found to be involved in pathological events. The dynamic nature of these processes and the involvement of large protein surfaces discouraged anyway the scientific community in considering them promising therapeutic targets. More recently peptide drugs received renewed attention since drug discovery has offered a broad range of structural diverse sequences, moving from traditionally endogenous peptides to sequences possessing improved pharmaceutical profiles. About 70 peptides are currently on the marked but several others are in clinical development. In this review we want to report the update on these novel APIs, focusing our attention on the molecules in clinical development, representing the direct consequence of the drug discovery process of the last 10 years. The comprehensive collection will be classified in function of the structural characteristics (native, analogous, heterologous) and on the basis of the therapeutic targets. The mechanism of interference on PPI will also be reported to offer useful information for novel peptide design.
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Affiliation(s)
- Walter Cabri
- Department of Chemistry “Giacomo Ciamician”, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | | | | | | | | | | | | | - Alessandra Tolomelli
- Department of Chemistry “Giacomo Ciamician”, Alma Mater Studiorum University of Bologna, Bologna, Italy
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Li M, Li H, Huang H, Li Y, Qin L, Xu X, Zheng Q, Wang D, Zhang M, Sun Y, Yang Q. Identification and structural elucidation of a new cetrorelix methylene dimer impurity in cetrorelix acetate by using LC-MS/MS. J Pharm Biomed Anal 2021; 197:113946. [PMID: 33611089 DOI: 10.1016/j.jpba.2021.113946] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 01/16/2021] [Accepted: 01/30/2021] [Indexed: 01/02/2023]
Abstract
Cetrorelix, a potent third generation of luteinizing hormone releasing hormone (LHRH) antagonist, is a synthetic decapeptide used for treatment of infertility, prostatic hypertrophy and sexual hormone-dependent tumors. The approved drug of cetrorelix (Cetrotide, Asta Medica AG, Frankfurt, Germany.), was used for prevention of premature ovulation in patients undergoing a controlled ovarian stimulation (COS), followed by oocyte pick-up and assisted reproductive techniques, and has been shown safe and effective in controlled ovarian stimulation. Nevertheless, the study of aggregation products of cetrorelix was rarely reported. A simple liquid chromatography mass spectrometry (LC-MS/MS) method was developed for separation, identification and characterization of a new cetrorelix methylene dimer impurity in cetrorelix. The chromatographic separation was achieved on an XSelect Peptide CSH ™C18 column (150 × 4.6 mm, 3.5 μm particle size) using gradient elution with a mobile phase of ammonium formate buffer (pH 3.0, 20 mM), acetonitrile at a flow rate 1.0 mL min-1, and an ultraviolet detection wavelength of 226 nm. The new cetrorelix methylene dimer impurity was characterized by LC-MS/MS and it characteristic fragment ions were summarized. A simple, fast and accurate method was established for the determination of the molecular weight and structure of the new cetrorelix methylene dimer impurity. In this study, the results showed that the cetrorelix was highly unstable in formaldehyde conditions. In addition, it is proposed that the impact of formaldehyde in the environment on the quality of cetrorelix acetate for Injection should be evaluated during the production process.
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Affiliation(s)
- Mingliang Li
- Shandong Provincial Key Laboratory of New Microparticles Drug Delivery Technology for Injection, Jinan, 250100, PR China
| | - Huapeng Li
- Analysis and Testing Center of Qilu Pharmaceutical, Jinan, 250100, PR China
| | - Heqing Huang
- Shandong Provincial Key Laboratory of New Microparticles Drug Delivery Technology for Injection, Jinan, 250100, PR China
| | - Yanzhi Li
- Shandong Provincial Key Laboratory of New Microparticles Drug Delivery Technology for Injection, Jinan, 250100, PR China
| | - Li Qin
- Shandong Provincial Key Laboratory of New Microparticles Drug Delivery Technology for Injection, Jinan, 250100, PR China
| | - Xuan Xu
- Analysis and Testing Center of Qilu Pharmaceutical, Jinan, 250100, PR China
| | - Qiang Zheng
- Shandong Provincial Key Laboratory of New Microparticles Drug Delivery Technology for Injection, Jinan, 250100, PR China
| | - Donghai Wang
- Shandong Provincial Key Laboratory of New Microparticles Drug Delivery Technology for Injection, Jinan, 250100, PR China
| | - Minghui Zhang
- Shandong Provincial Key Laboratory of New Microparticles Drug Delivery Technology for Injection, Jinan, 250100, PR China
| | - Yanhua Sun
- Shandong Provincial Key Laboratory of New Microparticles Drug Delivery Technology for Injection, Jinan, 250100, PR China.
| | - Qingmin Yang
- Shandong Provincial Key Laboratory of New Microparticles Drug Delivery Technology for Injection, Jinan, 250100, PR China.
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Krueger E, Hayes S, Chang EH, Yutuc S, Brown AC. Receptor-Based Peptides for Inhibition of Leukotoxin Activity. ACS Infect Dis 2018; 4:1073-1081. [PMID: 29742342 DOI: 10.1021/acsinfecdis.7b00230] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The Gram-negative bacterium Aggregatibacter actinomycetemcomitans, commonly associated with localized aggressive periodontitis (LAP), secretes an RTX (repeats-in-toxin) protein leukotoxin (LtxA) that targets human white blood cells, an interaction that is driven by its recognition of the lymphocyte function-associated antigen-1 (LFA-1) integrin. In this study, we report on the inhibition of LtxA-LFA-1 binding as an antivirulence strategy to inhibit LtxA-mediated cytotoxicity. Specifically, we designed and synthesized peptides corresponding to the reported LtxA binding domain on LFA-1 and characterized their capability to inhibit LtxA binding to LFA-1 and subsequent cytotoxic activity in human immune cells. We found that several of these peptides, corresponding to sequential β-strands in the LtxA-binding domain of LFA-1, inhibit LtxA activity, demonstrating the effectiveness of this approach. Further investigations into the mechanism by which these peptides inhibit LtxA binding to LFA-1 reveal a correlation between toxin-peptide affinity and LtxA-mediated cytotoxicity, leading to a diminished association between LtxA and LFA-1 on the cell membrane. Our results demonstrate the possibility of using target-based peptides to inhibit LtxA activity, and we expect that a similar approach could be used to hinder the activity of other RTX toxins.
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Affiliation(s)
- Eric Krueger
- Department of Chemical and Biomolecular Engineering, Lehigh University, Iacocca Hall, Room B323, 111 Research Drive, Bethlehem, Pennsylvania 18015, United States
| | - Shannon Hayes
- Department of Chemical and Biomolecular Engineering, Lehigh University, Iacocca Hall, Room B323, 111 Research Drive, Bethlehem, Pennsylvania 18015, United States
| | - En Hyung Chang
- Department of Chemical and Biomolecular Engineering, Lehigh University, Iacocca Hall, Room B323, 111 Research Drive, Bethlehem, Pennsylvania 18015, United States
| | - Shailagne Yutuc
- Department of Chemical and Biomolecular Engineering, Lehigh University, Iacocca Hall, Room B323, 111 Research Drive, Bethlehem, Pennsylvania 18015, United States
| | - Angela C. Brown
- Department of Chemical and Biomolecular Engineering, Lehigh University, Iacocca Hall, Room B323, 111 Research Drive, Bethlehem, Pennsylvania 18015, United States
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Yang H, Deng Y, Xu S, Liu W, Li G. Investigation on the interaction of collagen molecules in solution with different acetic acid concentrations. J Appl Polym Sci 2017. [DOI: 10.1002/app.45255] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Huan Yang
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University; Chengdu 610065 People's Republic of China
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University; Chengdu 610065 People's Republic of China
| | - Yi Deng
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University; Chengdu 610065 People's Republic of China
| | - Songcheng Xu
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University; Chengdu 610065 People's Republic of China
| | - Wentao Liu
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University; Chengdu 610065 People's Republic of China
| | - Guoying Li
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University; Chengdu 610065 People's Republic of China
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University; Chengdu 610065 People's Republic of China
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Tan O, Carr BR, Beshay VE, Bukulmez O. The extrapituitary effects of GnRH antagonists and their potential clinical implications: a narrated review. Reprod Sci 2012; 20:16-25. [PMID: 23012318 DOI: 10.1177/1933719112459244] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Potential roles of gonadotropin-releasing hormone (GnRH) antagonists on GnRH/GnRH receptor systems and their effects on the extrapituitary tissues are largely elusive. In this narrated review, we summarized the systemic effects of GnRH antagonists on ovary, endometrium, embryo implantation, placental development, fetal teratogenicity, reproductive tissue cancer cells, and heart while briefly reviewing the GnRH and GnRH receptor system. GnRH antagonists may have direct effects on ovarian granulosa cells. Data are conflicting regarding their effects on endometrial receptivity. The GnRH antagonists may potentially have detrimental effect on early placentation by decreasing the invasive ability of cytotrophoblasts if the exposure to them occurs during early pregnancy. The GnRH antagonists were not found to increase the rates of congenital malformations. Comparative clinical data are required to explore their systemic effects on various extrapituitary tissues such as on cardiac function in the long term as well as their potential use in other human cancers that express GnRH receptors.
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Affiliation(s)
- Orkun Tan
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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