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Hassan RM, Abd El-Maksoud MS, Ghannam IAY, El-Azzouny AAS, Aboul-Enein MN. Synthetic non-toxic anti-biofilm agents as a strategy in combating bacterial resistance. Eur J Med Chem 2023; 262:115867. [PMID: 37866335 DOI: 10.1016/j.ejmech.2023.115867] [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: 08/11/2023] [Revised: 09/26/2023] [Accepted: 10/09/2023] [Indexed: 10/24/2023]
Abstract
The tremendous increase in the bacterial resistance to the available antibiotics is a serious problem for the treatment of various infections. Biofilm formation in bacteria significantly contributes to the bacterial survival in host cells, and is considered as an crucial factor, responsible for bacterial resistance. The response of the bacterial cells in the biofilm to antibiotics is completely different from that of the free floating planktonic cells of the same strain. The anti-biofilm agents that could inhibit the biofilm production without affecting the bacterial growth, apply less selective pressure over the bacterial strains than the traditional antibiotics; thus the development of bacterial resistance would be of low incidence. Many attempts have been performed to discover novel agents capable of interfering with the bacterial biofilm life cycle, and several compounds have shown promising activities in suppressing the biofilm production or in dispersing mature existing biofilms. This review describes the different chemical classes that have anti-biofilm effects against different Gram-positive and Gram-negative bacteria without affecting the bacterial growth.
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Affiliation(s)
- Rasha Mohamed Hassan
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (ID: 60014618), P.O. 12622, Dokki, Giza, Egypt.
| | - Mohamed Samir Abd El-Maksoud
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (ID: 60014618), P.O. 12622, Dokki, Giza, Egypt
| | - Iman Ahmed Youssef Ghannam
- Chemistry of Natural and Microbial Products Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, Dokki, Cairo, 12622, Egypt
| | - Aida Abdel-Sattar El-Azzouny
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (ID: 60014618), P.O. 12622, Dokki, Giza, Egypt
| | - Mohamed Nabil Aboul-Enein
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (ID: 60014618), P.O. 12622, Dokki, Giza, Egypt.
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2
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Niño-Padilla EI, Espitia C, Velazquez C, Alday E, Silva-Campa E, Burgara-Estrella A, Enciso-Moreno JA, Valenzuela O, Astiazarán-García H, Garibay-Escobar A. Antimycobacterial Precatorin A Flavonoid Displays Antibiofilm Activity against Mycobacterium bovis BCG. ACS OMEGA 2023; 8:40665-40676. [PMID: 37929145 PMCID: PMC10621015 DOI: 10.1021/acsomega.3c05703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 11/07/2023]
Abstract
The aim of this study was to evaluate the potential antibiofilm activity of Rhynchosia precatoria (R. precatoria) compounds over Mycobacterium bovis BCG (M. bovis BCG) as a model for Mycobacterium tuberculosis (Mtb). We evaluated the antibiofilm activity as the ability to both inhibit biofilm formation and disrupt preformed biofilms (bactericidal) of R. precatoria compounds, which have been previously described as being antimycobacterials against Mtb. M. bovis BCG developed air-liquid interface biofilms with surface attachment ability and drug tolerance. Of the R. precatoria extracts and compounds that were tested, precatorin A (PreA) displayed the best biofilm inhibitory activity, as evaluated by biofilm biomass quantification, viable cell count, and confocal and atomic force microscopy procedures. Furthermore, its combination with isoniazid at subinhibitory concentrations inhibited M. bovis BCG biofilm formation. Nonetheless, neither PreA nor the extract showed bactericidal effects. PreA is the R. precatoria compound responsible for biofilm inhibitory activity against M. bovis BCG.
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Affiliation(s)
- Esmeralda Ivonne Niño-Padilla
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Clara Espitia
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán 04510, Ciudad de México, México
| | - Carlos Velazquez
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Efrain Alday
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Erika Silva-Campa
- Departamento de Investigación en Física, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Alexel Burgara-Estrella
- Departamento de Investigación en Física, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - José Antonio Enciso-Moreno
- Facultad de Química, Universidad Autónoma de Querétaro, Centro Universitario s/n, Cerro de las Campanas, Santiago de Querétaro 76010, Querétaro, México
| | - Olivia Valenzuela
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Humberto Astiazarán-García
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Adriana Garibay-Escobar
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
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Convenient and green synthesis of novel 1,2,5-trisubstituted benzimidazole compounds and their antibacterial activity evaluation. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2023. [DOI: 10.1007/s13738-022-02736-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Fu J, Yue Y, Liu K, Wang S, Zhang Y, Su Q, Gu Q, Lin F, Zhang Y. PTSA-catalyzed selective synthesis and antibacterial evaluation of 1,2-disubstituted benzimidazoles. Mol Divers 2022; 27:873-887. [PMID: 35718840 DOI: 10.1007/s11030-022-10460-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 05/09/2022] [Indexed: 11/25/2022]
Abstract
Herein, we developed a convenient and efficient method via protonation of p-toluenesulfonic acid promoted cyclocondensation of o-phenylenediamine and aldehydes for selectively synthesizing 1,2-disubstituted benzimidazoles. This method displayed broad substrate adaptability and afforded the desired products in moderate to excellent yield in short reaction time. The effect of different substituents on the yield was investigated by extending optimum reaction conditions, which was further confirmed by theoretical calculations. It suggested that the surface electrostatic potential of oxygen atom and nitrogen atom on the substrates played important role in the synthesis of 1,2-disubstituted benzimidazoles. Besides, the crystal structure of compound 2t in the orthorhombic space group P2(1)/c was presented. Also, the anti-mycolicibacterium smegmatis (MC2155) activity was evaluated using rifampicin as a positive control. The products (2a, 2b, 2c, 2i, 2j, 2k, 2m) showed good antibacterial activities which were comparable to rifampicin.
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Affiliation(s)
- Jiaxu Fu
- Department of Chemical Engineering and Applied Chemistry, College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Yuandong Yue
- School of Life Sciences, Jilin University, Changchun, 130012, People's Republic of China
| | - Kejun Liu
- Department of Chemical Engineering and Applied Chemistry, College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Shuang Wang
- Department of Chemical Engineering and Applied Chemistry, College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Yiliang Zhang
- Department of Chemical Engineering and Applied Chemistry, College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Qing Su
- Department of Chemical Engineering and Applied Chemistry, College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Qiang Gu
- Department of Chemical Engineering and Applied Chemistry, College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Feng Lin
- School of Life Sciences, Jilin University, Changchun, 130012, People's Republic of China
| | - Yumin Zhang
- Department of Chemical Engineering and Applied Chemistry, College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China.
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Novel acetamide derivatives of 2-aminobenzimidazole prevent inflammatory arthritis in rats via suppression of pro-inflammatory mediators. Inflammopharmacology 2022; 30:1005-1019. [DOI: 10.1007/s10787-022-00969-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 02/24/2022] [Indexed: 11/27/2022]
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Belardinelli JM, Li W, Martin KH, Zeiler MJ, Lian E, Avanzi C, Wiersma CJ, Nguyen TV, Angala B, de Moura VCN, Jones V, Borlee BR, Melander C, Jackson M. 2-Aminoimidazoles Inhibit Mycobacterium abscessus Biofilms in a Zinc-Dependent Manner. Int J Mol Sci 2022; 23:ijms23062950. [PMID: 35328372 PMCID: PMC8951752 DOI: 10.3390/ijms23062950] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 02/28/2022] [Accepted: 03/07/2022] [Indexed: 02/04/2023] Open
Abstract
Biofilm growth is thought to be a significant obstacle to the successful treatment of Mycobacterium abscessus infections. A search for agents capable of inhibiting M. abscessus biofilms led to our interest in 2-aminoimidazoles and related scaffolds, which have proven to display antibiofilm properties against a number of Gram-negative and Gram-positive bacteria, including Mycobacterium tuberculosis and Mycobacterium smegmatis. The screening of a library of 30 compounds led to the identification of a compound, AB-2-29, which inhibits the formation of M. abscessus biofilms with an IC50 (the concentration required to inhibit 50% of biofilm formation) in the range of 12.5 to 25 μM. Interestingly, AB-2-29 appears to chelate zinc, and its antibiofilm activity is potentiated by the addition of zinc to the culture medium. Preliminary mechanistic studies indicate that AB-2-29 acts through a distinct mechanism from those reported to date for 2-aminoimidazole compounds.
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Affiliation(s)
- Juan M. Belardinelli
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523, USA; (J.M.B.); (W.L.); (E.L.); (C.A.); (C.J.W.); (B.A.); (V.C.N.d.M.); (V.J.)
| | - Wei Li
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523, USA; (J.M.B.); (W.L.); (E.L.); (C.A.); (C.J.W.); (B.A.); (V.C.N.d.M.); (V.J.)
| | - Kevin H. Martin
- Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523, USA; (K.H.M.); (B.R.B.)
| | - Michael J. Zeiler
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA; (M.J.Z.); (C.M.)
| | - Elena Lian
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523, USA; (J.M.B.); (W.L.); (E.L.); (C.A.); (C.J.W.); (B.A.); (V.C.N.d.M.); (V.J.)
| | - Charlotte Avanzi
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523, USA; (J.M.B.); (W.L.); (E.L.); (C.A.); (C.J.W.); (B.A.); (V.C.N.d.M.); (V.J.)
| | - Crystal J. Wiersma
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523, USA; (J.M.B.); (W.L.); (E.L.); (C.A.); (C.J.W.); (B.A.); (V.C.N.d.M.); (V.J.)
| | - Tuan Vu Nguyen
- Department of Chemistry, North Carolina State University, Raleigh, NC 27607, USA;
| | - Bhanupriya Angala
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523, USA; (J.M.B.); (W.L.); (E.L.); (C.A.); (C.J.W.); (B.A.); (V.C.N.d.M.); (V.J.)
| | - Vinicius C. N. de Moura
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523, USA; (J.M.B.); (W.L.); (E.L.); (C.A.); (C.J.W.); (B.A.); (V.C.N.d.M.); (V.J.)
| | - Victoria Jones
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523, USA; (J.M.B.); (W.L.); (E.L.); (C.A.); (C.J.W.); (B.A.); (V.C.N.d.M.); (V.J.)
| | - Bradley R. Borlee
- Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523, USA; (K.H.M.); (B.R.B.)
| | - Christian Melander
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA; (M.J.Z.); (C.M.)
- Department of Chemistry, North Carolina State University, Raleigh, NC 27607, USA;
| | - Mary Jackson
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523, USA; (J.M.B.); (W.L.); (E.L.); (C.A.); (C.J.W.); (B.A.); (V.C.N.d.M.); (V.J.)
- Correspondence: ; Tel.: +1-(970)-491-3582
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Trebino MA, Shingare RD, MacMillan JB, Yildiz FH. Strategies and Approaches for Discovery of Small Molecule Disruptors of Biofilm Physiology. Molecules 2021; 26:molecules26154582. [PMID: 34361735 PMCID: PMC8348372 DOI: 10.3390/molecules26154582] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/24/2021] [Accepted: 07/26/2021] [Indexed: 12/02/2022] Open
Abstract
Biofilms, the predominant growth mode of microorganisms, pose a significant risk to human health. The protective biofilm matrix, typically composed of exopolysaccharides, proteins, nucleic acids, and lipids, combined with biofilm-grown bacteria’s heterogenous physiology, leads to enhanced fitness and tolerance to traditional methods for treatment. There is a need to identify biofilm inhibitors using diverse approaches and targeting different stages of biofilm formation. This review discusses discovery strategies that successfully identified a wide range of inhibitors and the processes used to characterize their inhibition mechanism and further improvement. Additionally, we examine the structure–activity relationship (SAR) for some of these inhibitors to optimize inhibitor activity.
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Affiliation(s)
- Michael A. Trebino
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, CA 95064, USA;
| | - Rahul D. Shingare
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA;
| | - John B. MacMillan
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA;
- Correspondence: (J.B.M.); (F.H.Y.)
| | - Fitnat H. Yildiz
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, CA 95064, USA;
- Correspondence: (J.B.M.); (F.H.Y.)
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Niño-Padilla EI, Velazquez C, Garibay-Escobar A. Mycobacterial biofilms as players in human infections: a review. BIOFOULING 2021; 37:410-432. [PMID: 34024206 DOI: 10.1080/08927014.2021.1925886] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 04/18/2021] [Accepted: 04/28/2021] [Indexed: 06/12/2023]
Abstract
The role of biofilms in pathogenicity and treatment strategies is often neglected in mycobacterial infections. In recent years, the emergence of nontuberculous mycobacterial infections has necessitated the development of novel prophylactic strategies and elucidation of the mechanisms underlying the establishment of chronic infections. More importantly, the question arises whether members of the Mycobacterium tuberculosis complex can form biofilms and contribute to latent tuberculosis and drug resistance because of the long-lasting and recalcitrant nature of its infections. This review discusses some of the molecular mechanisms by which biofilms could play a role in infection or pathological events in humans.
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Affiliation(s)
| | - Carlos Velazquez
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo, Sonora, México
| | - Adriana Garibay-Escobar
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo, Sonora, México
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Kim SH, Semenya D, Castagnolo D. Antimicrobial drugs bearing guanidine moieties: A review. Eur J Med Chem 2021; 216:113293. [PMID: 33640673 DOI: 10.1016/j.ejmech.2021.113293] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 02/08/2021] [Accepted: 02/09/2021] [Indexed: 12/31/2022]
Abstract
Compounds incorporating guanidine moieties constitute a versatile class of biologically interesting molecules with a wide array of applications. As such, guanidines have been exploited as privileged structural motifs in designing novel drugs for the treatment of various infectious and non-infectious diseases. In designing anti-infective agents, this moiety carries great appeal by virtue of attributes such as hydrogen-bonding capability and protonatability at physiological pH in the context of interaction with biological targets. This review provides an overview of recent advances in hit-to-lead development studies of antimicrobial guanidine-containing compounds with the aim to highlight their structural diversity and the pharmacological relevance of the moiety to drug activity, insofar as possible. In so doing, emphasis is put on chemical and microbiological properties of such compounds in relation to antibacterial, antifungal and antimalarial activities.
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Affiliation(s)
- Seong-Heun Kim
- School of Cancer and Pharmaceutical Sciences, King's College London, 150 Stamford Street, SE1 9NH, London, United Kingdom
| | - Dorothy Semenya
- School of Cancer and Pharmaceutical Sciences, King's College London, 150 Stamford Street, SE1 9NH, London, United Kingdom
| | - Daniele Castagnolo
- School of Cancer and Pharmaceutical Sciences, King's College London, 150 Stamford Street, SE1 9NH, London, United Kingdom.
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Melander RJ, Basak AK, Melander C. Natural products as inspiration for the development of bacterial antibiofilm agents. Nat Prod Rep 2020; 37:1454-1477. [PMID: 32608431 PMCID: PMC7677205 DOI: 10.1039/d0np00022a] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Natural products have historically been a rich source of diverse chemical matter with numerous biological activities, and have played an important role in drug discovery in many areas including infectious disease. Synthetic and medicinal chemistry have been, and continue to be, important tools to realize the potential of natural products as therapeutics and as chemical probes. The formation of biofilms by bacteria in an infection setting is a significant factor in the recalcitrance of many bacterial infections, conferring increased tolerance to many antibiotics and to the host immune response, and as yet there are no approved therapeutics for combatting biofilm-based bacterial infections. Small molecules that interfere with the ability of bacteria to form and maintain biofilms can overcome antibiotic tolerance conferred by the biofilm phenotype, and have the potential to form combination therapies with conventional antibiotics. Many natural products with anti-biofilm activity have been identified from plants, microbes, and marine life, including: elligic acid glycosides, hamamelitannin, carolacton, skyllamycins, promysalin, phenazines, bromoageliferin, flustramine C, meridianin D, and brominated furanones. Total synthesis and medicinal chemistry programs have facilitated structure confirmation, identification of critical structural motifs, better understanding of mechanistic pathways, and the development of more potent, more accessible, or more pharmacologically favorable derivatives of anti-biofilm natural products.
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Affiliation(s)
- Roberta J Melander
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA.
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