1
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Wu D, Jiang S, Wang G, Wang L, Wu L, Li J, Jia W, Liu L, Xu J, Zhang D, Zhao X, Yue H. Characterization of alkaloids and phenolics in Nitraria roborowskii Kom. fruit by UHPLC-triple-TOF-MS/MS and its sucrase and maltase inhibitory effects. Food Chem 2024; 447:138743. [PMID: 38452535 DOI: 10.1016/j.foodchem.2024.138743] [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] [Received: 09/28/2023] [Revised: 02/08/2024] [Accepted: 02/10/2024] [Indexed: 03/09/2024]
Abstract
Nitraria roborowskii Kom (NRK), with high economic and ecological value, is mainly distributed in the Qaidam Basin, China. However, research on its chemical components and bioactivities is still rare. In this study, its chemical constituents (52) including 10 β-carboline alkaloids, nine cyclic peptides, three indole alkaloids, five pyrrole alkaloids, eight phenolic acids and 17 flavonoids were identified tentatively using UPLC-triple-TOF-MS/MS. Notablely, one new β-carboline alkaloid and five new cyclic peptides were confirmed using MS/MS fragmentation pathways. In addition, experiments in vitro indicated that NRK-C had strong maltase and sucrase inhibitory activities (IC50 of 0.202 and 0.103 mg/mL, respectively). Polysaccharide tolerance experiments confirmed NRK-C (400 mg/kg) was associated with decreased postprandial blood glucose (PBG) in diabetic mice. These results suggested that NRK fruit might be used as a functional ingredient in food products.
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Affiliation(s)
- Di Wu
- Qinghai University, Qinghai, China
| | - Sirong Jiang
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China
| | | | - Luya Wang
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China; University of Chinese Academy of Sciences, Beijing, China
| | - Li Wu
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China; University of Chinese Academy of Sciences, Beijing, China
| | - Jiaxin Li
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China; University of Chinese Academy of Sciences, Beijing, China
| | - Wenjiang Jia
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China; University of Chinese Academy of Sciences, Beijing, China
| | - Liying Liu
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China; University of Chinese Academy of Sciences, Beijing, China
| | - Jiyu Xu
- Qinghai University, Qinghai, China
| | | | - Xiaohui Zhao
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China.
| | - Huilan Yue
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China.
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2
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Li B, Parker J, Tong J, Kodadek T. Synthesis of Membrane-Permeable Macrocyclic Peptides via Imidazopyridinium Grafting. J Am Chem Soc 2024; 146:14633-14644. [PMID: 38752889 DOI: 10.1021/jacs.4c01920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Macrocyclic peptides (MPs) are a class of compounds that have been shown to be particularly well suited for engaging difficult protein targets. However, their utility is limited by their generally poor cell permeability and bioavailability. Here, we report an efficient solid-phase synthesis of novel MPs by trapping a reversible intramolecular imine linkage with a 2-formyl- or 2-keto-pyridine to create an imidazopyridinium (IP+)-linked ring. This chemistry is useful for the creation of macrocycles of different sizes and geometries, including head-to-side and side-to-side chain configurations. Many of the IP+-linked MPs exhibit far better passive membrane permeability than expected for "beyond Rule of 5" molecules, in some cases exceeding that of much lower molecular weight, traditional drug molecules. We demonstrate that this chemistry is suitable for the creation of libraries of IP+-linked MPs and show that these libraries can be mined for protein ligands.
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Affiliation(s)
- Bo Li
- Department of Chemistry, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation and Technology, 120 Scripps Way, Jupiter, Florida 33458, United States
| | - Joshua Parker
- Department of Chemistry, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation and Technology, 120 Scripps Way, Jupiter, Florida 33458, United States
| | - Joel Tong
- Department of Chemistry, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation and Technology, 120 Scripps Way, Jupiter, Florida 33458, United States
| | - Thomas Kodadek
- Department of Chemistry, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation and Technology, 120 Scripps Way, Jupiter, Florida 33458, United States
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3
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Lisowska A, Świątek P, Dębicki F, Lewińska A, Marciniak A, Pacini L, Papini AM, Brasuń J. The Role of the Unbinding Cycle on the Coordination Abilities of the Bi-Cyclopeptides toward Cu(II) Ions. Molecules 2024; 29:2197. [PMID: 38792059 PMCID: PMC11124368 DOI: 10.3390/molecules29102197] [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: 04/17/2024] [Revised: 05/02/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
Bicyclic peptides have attracted the interest of pharmaceutical companies because of their remarkable properties, putting them on a new path in medicine. Their conformational rigidity improves proteolytic stability and leads to rapid penetration into tissues via any possible route of administration. Moreover, elimination of renal metabolism is of great importance, for example, for people with a history of liver diseases. In addition, each ring can function independently, making bicyclic peptides extremely versatile molecules for further optimization. In this paper, we compared the potentiometric and spectroscopic properties studied by UV-vis, MCD, and EPR of four synthetic analogues of the bi-cyclic peptide c(PKKHP-c(CFWKTC)-PKKH) (BCL). In particular, we correlated the structural and spectral properties of complexes with coordinating abilities toward Cu(II) ions of MCL1 (Ac-PKKHPc(CFWKTC)PKKH-NH2) that contains the unbinding cycle and N- and C-terminal linear parts with two histidine residues, one per part; two monocyclic ligands containing one histidine residue, both in the N-terminal position, i.e., MCL2 (Ac-PKKHPc(CFWKTC)PKKS-NH2) and in the C-terminal position, i.e., MCL3 (Ac-PKKSPc(CFWKTC)PKKH-NH2), respectively; and the linear structure LNL (Ac-PKKHPSFWKTSPKKH-NH2). Potentiometric results have shown that the bicyclic structure promotes the involvement of the side chain imidazole donors in Cu(II) binding. On the other hand, the results obtained for the mono-cyclic analogues lead to the conclusion that the coordination of the histidine moiety as an anchoring group is promoted by its location in the peptide sequence further from the nonbinding cycle, strongly influencing the involvement of the amide donors in Cu(II) coordination.
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Affiliation(s)
- Alicja Lisowska
- Biomolecule Student Science Club, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wroclaw, Poland;
| | - Paulina Świątek
- Graduate of Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wroclaw, Poland;
| | - Filip Dębicki
- Faculty of Medicine, Medical University of Lodz, 90-647 Lodz, Poland;
| | | | - Aleksandra Marciniak
- Department of the Basic Chemical Sciences, Wroclaw Medical University, 50-556 Wroclaw, Poland;
| | - Lorenzo Pacini
- Interdepartmental Research Unit of Peptide and Protein Chemistry and Biology, University of Florence, Sesto Fiorentino, 50019 Florence, Italy;
- Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino, 50019 Florence, Italy
| | - Anna Maria Papini
- Interdepartmental Research Unit of Peptide and Protein Chemistry and Biology, University of Florence, Sesto Fiorentino, 50019 Florence, Italy;
- Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino, 50019 Florence, Italy
| | - Justyna Brasuń
- Department of the Basic Chemical Sciences, Wroclaw Medical University, 50-556 Wroclaw, Poland;
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4
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Chen FJ, Pinnette N, Gao J. Strategies for the Construction of Multicyclic Phage Display Libraries. Chembiochem 2024; 25:e202400072. [PMID: 38466139 DOI: 10.1002/cbic.202400072] [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: 01/27/2024] [Revised: 03/05/2024] [Accepted: 03/11/2024] [Indexed: 03/12/2024]
Abstract
Peptide therapeutics have gained great interest due to their multiple advantages over small molecule and antibody-based drugs. Peptide drugs are easier to synthesize, have the potential for oral bioavailability, and are large enough to target protein-protein interactions that are undruggable by small molecules. However, two major limitations have made it difficult to develop novel peptide therapeutics not derived from natural products, including the metabolic instability of peptides and the difficulty of reaching antibody-like potencies and specificities. Compared to linear and disulfide-monocyclized peptides, multicyclic peptides can provide increased conformational rigidity, enhanced metabolic stability, and higher potency in inhibiting protein-protein interactions. The identification of novel multicyclic peptide binders can be difficult, however, recent advancements in the construction of multicyclic phage libraries have greatly advanced the process of identifying novel multicyclic peptide binders for therapeutically relevant protein targets. This review will describe the current approaches used to create multicyclic peptide libraries, highlighting the novel chemistries developed and the proof-of-concept work done on validating these libraries against different protein targets.
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Affiliation(s)
- Fa-Jie Chen
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Nicole Pinnette
- Department of Chemistry, Boston College, Merkert Chemistry Center 2609 Beacon Street, Chestnut Hill, MA-02467, USA
| | - Jianmin Gao
- Department of Chemistry, Boston College, Merkert Chemistry Center 2609 Beacon Street, Chestnut Hill, MA-02467, USA
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5
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Choi B, Acuña A, Link AJ. Cyclic Peptides from Graspetide Biosynthesis and Native Chemical Ligation. J Am Chem Soc 2024; 146:11605-11609. [PMID: 38634647 PMCID: PMC11064158 DOI: 10.1021/jacs.4c02745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
The ribosomally synthesized and post-translationally modified peptide (RiPP) superfamily of natural products includes many examples of cyclic peptides with diverse macrocyclization chemistries. The graspetides, one family of macrocyclized RiPPs, harbor side chain-side chain ester or amide linkages. We recently reported the structure and biosynthesis of the graspetide pre-fuscimiditide, a 22-amino-acid (aa) peptide with two ester cross-links forming a stem-loop structure. These cross-links are introduced by a single graspetide synthetase, the ATP-grasp enzyme ThfB. Here we show that ThfB can also catalyze the formation of amide or thioester cross-links in prefuscimiditide, with thioester formation being especially efficient. We further show that upon proteolysis to reveal an N-terminal cysteine residue, the thioester-linked peptide rapidly and quantitatively rearranges via native chemical ligation into an isopeptide-bonded head-to-tail cyclic peptide. The solution structure of this rearranged peptide was determined by using 2D NMR spectroscopy experiments. Our methodology offers a straightforward recombinant route to head-to-tail cyclic peptides.
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Affiliation(s)
- Brian Choi
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey, 08544, United States
| | - Arthur Acuña
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey, 08544, United States
| | - A. James Link
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey, 08544, United States
- Department of Chemistry, Princeton University, Princeton, New Jersey, 08544, United States
- Department of Molecular Biology, Princeton University, Princeton, New Jersey, 08544, United States
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6
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Nielsen AL, Bognar Z, Mothukuri GK, Zarda A, Schüttel M, Merz ML, Ji X, Will EJ, Chinellato M, Bartling CRO, Strømgaard K, Cendron L, Angelini A, Heinis C. Large Libraries of Structurally Diverse Macrocycles Suitable for Membrane Permeation. Angew Chem Int Ed Engl 2024:e202400350. [PMID: 38602024 DOI: 10.1002/anie.202400350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/11/2024] [Accepted: 04/09/2024] [Indexed: 04/12/2024]
Abstract
Macrocycles offer an attractive format for drug development due to their good binding properties and potential to cross cell membranes. To efficiently identify macrocyclic ligands for new targets, methods for the synthesis and screening of large combinatorial libraries of small cyclic peptides were developed, many of them using thiol groups for efficient peptide macrocyclization. However, a weakness of these libraries is that invariant thiol-containing building blocks such as cysteine are used, resulting in a region that does not contribute to library diversity but increases molecule size. Herein, we synthesized a series of structurally diverse thiol-containing elements and used them for the combinatorial synthesis of a 2,688-member library of small, structurally diverse peptidic macrocycles with unprecedented skeletal complexity. We then used this library to discover potent thrombin and plasma kallikrein inhibitors, some also demonstrating favorable membrane permeability. X-ray structure analysis of macrocycle-target complexes showed that the size and shape of the newly developed thiol elements are key for binding. The strategy and library format presented in this work significantly enhance structural diversity by allowing combinatorial modifications to a previously invariant region of peptide macrocycles, which may be broadly applied in the development of membrane permeable therapeutics.
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Affiliation(s)
- Alexander L Nielsen
- Institute of Chemical Sciences and Engineering, School of Basic Sciences, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Zsolt Bognar
- Institute of Chemical Sciences and Engineering, School of Basic Sciences, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Ganesh K Mothukuri
- Institute of Chemical Sciences and Engineering, School of Basic Sciences, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Anne Zarda
- Institute of Chemical Sciences and Engineering, School of Basic Sciences, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Mischa Schüttel
- Institute of Chemical Sciences and Engineering, School of Basic Sciences, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Manuel L Merz
- Institute of Chemical Sciences and Engineering, School of Basic Sciences, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Xinjian Ji
- Institute of Chemical Sciences and Engineering, School of Basic Sciences, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Edward J Will
- Institute of Chemical Sciences and Engineering, School of Basic Sciences, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | | | - Christian R O Bartling
- Center for Biopharmaceuticals and Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Jagtvej 162, DK-2100, Copenhagen, Denmark
| | - Kristian Strømgaard
- Center for Biopharmaceuticals and Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Jagtvej 162, DK-2100, Copenhagen, Denmark
| | - Laura Cendron
- Department of Biology, University of Padova, 35131, Padova, Italy
| | - Alessandro Angelini
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, Venezia Mestre, Venice, 30172, Italy
- European Centre for Living Technologies (ECLT), Ca' Bottacin, Dorsoduro 3911, Calle Crosera, Venice, 30124, Italy
| | - Christian Heinis
- Institute of Chemical Sciences and Engineering, School of Basic Sciences, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
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7
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Ahmad I, Khalid H, Perveen A, Shehroz M, Nishan U, Rahman FU, Sheheryar, Moura AA, Ullah R, Ali EA, Shah M, Ojha SC. Identification of Novel Quinolone and Quinazoline Alkaloids as Phosphodiesterase 10A Inhibitors for Parkinson's Disease through a Computational Approach. ACS OMEGA 2024; 9:16262-16278. [PMID: 38617664 PMCID: PMC11007772 DOI: 10.1021/acsomega.3c10351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 03/12/2024] [Accepted: 03/13/2024] [Indexed: 04/16/2024]
Abstract
Phosphodiesterases (PDEs) are vital in signal transduction, specifically by hydrolyzing cAMP and cGMP. Within the PDE family, PDE10A is notable for its prominence in the striatum and its regulatory function over neurotransmitters in medium-spiny neurons. Given the dopamine deficiency in Parkinson's disease (PD) that affects striatal pathways, PDE10A inhibitors could offer therapeutic benefits by modulating D1 and D2 receptor signaling. This study was motivated by the successful history of quinazoline/quinazoline scaffolds in the inhibition of PDE10A. This study involved detailed in silico evaluations through docking followed by pharmacological, pharmacophoric, and pharmacokinetic analyses, prioritizing central nervous system (CNS)-active drug criteria. Seven cyclic peptides, those featuring the quinazoline/quinazoline moiety at both termini, exhibited notably enhanced docking scores compared to those of the remaining alkaloids within the screened library. We identified 7 quinolines and 1 quinazoline including Lepadin G, Aspernigerin, CJ-13536, Aurachin A, 2-Undecyl-4(1H)-quinolone, Huajiaosimuline 3-Prenyl-4-prenyloxyquinolin-2-one, and Isaindigotone that followed the standard CNS active drug criteria. The dominant quinoline ring in our study and its related quinazoline were central to our evaluations; therefore, the pharmacophoric features of these scaffolds were highlighted. The top alkaloids met all CNS-active drug properties; while nonmutagenic and without PAINS alerts, many indicated potential hepatotoxicity. Among the compounds, Huajiaosimuline was particularly significant due to its alignment with lead-likeness and CNS-active criteria. Aspernigerin demonstrated its affinity for numerous dopamine receptors, which signifies its potential to alter dopaminergic neurotransmission that is directly related to PD. Interestingly, the majority of these alkaloids had biological targets primarily associated with G protein-coupled receptors, critical in PD pathophysiology. They exhibit superior excretion parameters and toxicity end-points compared to the standard. Notably, selected alkaloids demonstrated stability in the binding pocket of PDE10A according to the molecular dynamic simulation results. Our findings emphasize the potential of these alkaloids as PDE10A inhibitors. Further experimental studies may be necessary to confirm their actual potency in inhibiting PDE10A before exploring their therapeutic potential in PD.
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Affiliation(s)
- Iqra Ahmad
- Department
of Biochemistry, Bahauddin Zakariya University, Multan 66000, Pakistan
| | - Hira Khalid
- Department
of Biochemistry, Bahauddin Zakariya University, Multan 66000, Pakistan
| | - Asia Perveen
- Department
of Biochemistry, Bahauddin Zakariya University, Multan 66000, Pakistan
| | - Muhammad Shehroz
- Department
of Bioinformatics, Kohsar University Murree, Murree 47150, Pakistan
| | - Umar Nishan
- Department
of Chemistry, Kohat University of Science
& Technology, Kohat 26000, Pakistan
| | - Faiz Ur Rahman
- Department
of Zoology, University of Shangla, Shangla 19100, Khyber Pakhtunkhwa, Pakistan
| | - Sheheryar
- Department
of Animal Science, Federal University of
Ceara, Fortaleza 60020-181, Brazil
| | - Arlindo Alencar Moura
- Department
of Animal Science, Federal University of
Ceara, Fortaleza 60020-181, Brazil
| | - Riaz Ullah
- Department
of Pharmacognosy, College of Pharmacy, King
Saud University, Riyadh 11451, Saudi Arabia
| | - Essam A. Ali
- Department
of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohibullah Shah
- Department
of Biochemistry, Bahauddin Zakariya University, Multan 66000, Pakistan
| | - Suvash Chandra Ojha
- Department
of Infectious Diseases, the Affiliated Hospital
of Southwest Medical University, Luzhou 646000, China
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8
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Zhou L, Höfte M, Hennessy RC. Does regulation hold the key to optimizing lipopeptide production in Pseudomonas for biotechnology? Front Bioeng Biotechnol 2024; 12:1363183. [PMID: 38476965 PMCID: PMC10928948 DOI: 10.3389/fbioe.2024.1363183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 02/12/2024] [Indexed: 03/14/2024] Open
Abstract
Lipopeptides (LPs) produced by Pseudomonas spp. are specialized metabolites with diverse structures and functions, including powerful biosurfactant and antimicrobial properties. Despite their enormous potential in environmental and industrial biotechnology, low yield and high production cost limit their practical use. While genome mining and functional genomics have identified a multitude of LP biosynthetic gene clusters, the regulatory mechanisms underlying their biosynthesis remain poorly understood. We propose that regulation holds the key to unlocking LP production in Pseudomonas for biotechnology. In this review, we summarize the structure and function of Pseudomonas-derived LPs and describe the molecular basis for their biosynthesis and regulation. We examine the global and specific regulator-driven mechanisms controlling LP synthesis including the influence of environmental signals. Understanding LP regulation is key to modulating production of these valuable compounds, both quantitatively and qualitatively, for industrial and environmental biotechnology.
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Affiliation(s)
- Lu Zhou
- Laboratory of Phytopathology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Monica Höfte
- Laboratory of Phytopathology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Rosanna C. Hennessy
- Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
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9
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Pal S, 't Hart P. Imbuing peptide libraries with drug-likeness. Nat Chem Biol 2024; 20:140-141. [PMID: 38242957 DOI: 10.1038/s41589-023-01524-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2024]
Affiliation(s)
- Sunit Pal
- Max Planck Institute of Molecular Physiology, Chemical Genomics Centre, Dortmund, Germany
| | - Peter 't Hart
- Max Planck Institute of Molecular Physiology, Chemical Genomics Centre, Dortmund, Germany.
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10
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Rist D, DePalma T, Stagner E, Tallman MM, Venere M, Skardal A, Schultz ZD. Cancer Cell Targeting, Magnetic Sorting, and SERS Detection through Cell Surface Receptors. ACS Sens 2023; 8:4636-4645. [PMID: 37988612 PMCID: PMC10921760 DOI: 10.1021/acssensors.3c01625] [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] [Indexed: 11/23/2023]
Abstract
Integrins are cellular surface receptors responsible for the activation of many cellular pathways in cancer. These integrin proteins can be specifically targeted by small peptide sequences that offer the potential for the differentiation of cellular subpopulations by using magnetically assisted cellular sorting techniques. By adding a gold shell to the magnetic nanoparticles, these integrin-peptide interactions can be differentiated by surface-enhanced Raman spectroscopy (SERS), providing a quick and reliable method for on-target binding. In this paper, we demonstrate the ability to differentiate the peptide-protein interactions of the small peptides CDPGYIGSR and cyclic RGDfC functionalized on gold-coated magnetic nanoparticles with the integrins they are known to bind to using their SERS signal. SW480 and SW620 colorectal cancer cells known to have the integrins of interest were then magnetically sorted using these functionalized nanoparticles, suggesting differentiation between the sorted populations and integrin populations among the two cell lines.
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Affiliation(s)
- David Rist
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Tom DePalma
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Emerie Stagner
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Miranda M Tallman
- Department of Radiation Oncology, The Ohio State University, Columbus, Ohio 43210, United States
| | - Monica Venere
- The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio 43210, United States
- Department of Radiation Oncology, The Ohio State University, Columbus, Ohio 43210, United States
| | - Aleksander Skardal
- The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio 43210, United States
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Zachary D. Schultz
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
- The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio 43210, United States
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