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Rana MM, Lu S, Menjívar TA, Fukaya K, Nakajima-Shimada J, Urabe D, Igarashi Y. Cladoic Acid, an Anti- Trypanosoma cruzi Polyketide from Cladosporium sp. TP-F2020. JOURNAL OF NATURAL PRODUCTS 2024; 87:2126-2131. [PMID: 39101838 DOI: 10.1021/acs.jnatprod.4c00567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/06/2024]
Abstract
A new polyketide, cladoic acid, was isolated from a fungus of the genus Cladosporium. The structure of the highly oxygenated trans-decalin ring with an all-E triene side chain was elucidated by extensive spectroscopic analysis. The unique chair/twist-boat conformation of the trans-decalin core and the flexibility of the B-ring were demonstrated by computer-aided conformational analysis. Cladoic acid was active against Trypanosoma cruzi and inhibited the proliferation of amastigotes and epimastigotes with IC50 values of 27 and 46 μM, respectively, but it did not show any appreciable activity against P388 murine leukemia cells, bacteria, or fungi, indicating it is a potential candidate for drug development against Chagas disease.
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Affiliation(s)
- Md Masud Rana
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu-shi, Toyama 939-0398, Japan
| | - Shiyang Lu
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu-shi, Toyama 939-0398, Japan
| | - Tatiana Ascencio Menjívar
- Department of Microbiology, School of Medicine, Dr. José Matías Delgado University, Campus 1, km 8 1/2 Carretera a Santa Tecla, San Salvador 01101, El Salvador
- Graduate School of Health Sciences, Gunma University, 3-39-22, Showa-machi, Maebashi, Gunma 371-8510, Japan
| | - Keisuke Fukaya
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu-shi, Toyama 939-0398, Japan
| | - Junko Nakajima-Shimada
- Graduate School of Health Sciences, Gunma University, 3-39-22, Showa-machi, Maebashi, Gunma 371-8510, Japan
| | - Daisuke Urabe
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu-shi, Toyama 939-0398, Japan
| | - Yasuhiro Igarashi
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu-shi, Toyama 939-0398, Japan
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Zhong W, Agarwal V. Polymer degrading marine Microbulbifer bacteria: an un(der)utilized source of chemical and biocatalytic novelty. Beilstein J Org Chem 2024; 20:1635-1651. [PMID: 39076296 PMCID: PMC11285056 DOI: 10.3762/bjoc.20.146] [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: 02/19/2024] [Accepted: 07/02/2024] [Indexed: 07/31/2024] Open
Abstract
Microbulbifer is a genus of halophilic bacteria that are commonly detected in the commensal marine microbiomes. These bacteria have been recognized for their ability to degrade polysaccharides and other polymeric materials. Increasingly, Microbulbifer genomes indicate these bacteria to be an untapped reservoir for novel natural product discovery and biosynthetic novelty. In this review, we summarize the distribution of Microbulbifer bacteria, activities of the various polymer degrading enzymes that these bacteria produce, and an up-to-date summary of the natural products that have been isolated from Microbulbifer strains. We argue that these bacteria have been hiding in plain sight, and contemporary efforts into their genome and metabolome mining are going to lead to a proliferation of Microbulbifer-derived natural products in the future. We also describe, where possible, the ecological interactions of these bacteria in marine microbiomes.
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Affiliation(s)
- Weimao Zhong
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Vinayak Agarwal
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
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Zhong W, Aiosa N, Deutsch JM, Garg N, Agarwal V. Pseudobulbiferamides: Plasmid-Encoded Ureidopeptide Natural Products with Biosynthetic Gene Clusters Shared Among Marine Bacteria of Different Genera. JOURNAL OF NATURAL PRODUCTS 2023; 86:2414-2420. [PMID: 37713418 PMCID: PMC10616845 DOI: 10.1021/acs.jnatprod.3c00595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Indexed: 09/17/2023]
Abstract
Ureidopeptidic natural products possess a wide variety of favorable pharmacological properties. In addition, they have been shown to mediate core physiological functions in producer bacteria. Here, we report that similar ureidopeptidic natural products with conserved biosynthetic gene clusters are produced by different bacterial genera that coinhabit marine invertebrate microbiomes. We demonstrate that a Microbulbifer strain isolated from a marine sponge can produce two different classes of ureidopeptide natural products encoded by two different biosynthetic gene clusters that are positioned on the bacterial chromosome and on a plasmid. The plasmid encoded ureidopeptide natural products, which we term the pseudobulbiferamides (5-8), resemble the ureidopeptide natural products produced by Pseudovibrio, a different marine bacterial genus that is likewise present in marine sponge commensal microbiomes. Using imaging mass spectrometry, we find that the two classes of Microbulbifer-derived ureidopeptides occupy different physical spaces relative to the bacterial colony, perhaps implying different roles for these two compound classes in Microbulbifer physiology and environmental interactions.
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Affiliation(s)
- Weimao Zhong
- School
of Chemistry and Biochemistry, Georgia Institute
of Technology, Atlanta, Georgia 30332, United States
| | - Nicole Aiosa
- School
of Chemistry and Biochemistry, Georgia Institute
of Technology, Atlanta, Georgia 30332, United States
| | - Jessica M. Deutsch
- School
of Chemistry and Biochemistry, Georgia Institute
of Technology, Atlanta, Georgia 30332, United States
| | - Neha Garg
- School
of Chemistry and Biochemistry, Georgia Institute
of Technology, Atlanta, Georgia 30332, United States
- Center
for Microbial Dynamics and Infection, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
| | - Vinayak Agarwal
- School
of Chemistry and Biochemistry, Georgia Institute
of Technology, Atlanta, Georgia 30332, United States
- School
of Biological Sciences, Georgia Institute
of Technology, Atlanta, Georgia 30332, United States
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Majee S, Sarav M, Banik BK, Ray D. Recent Advances in the Green Synthesis of Active N-Heterocycles and Their Biological Activities. Pharmaceuticals (Basel) 2023; 16:873. [PMID: 37375820 DOI: 10.3390/ph16060873] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/06/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
N-heterocyclic scaffolds represent a privileged architecture in the process of drug design and development. It has widespread occurrence in synthetic and natural products, either those that are established or progressing as potent drug candidates. Additionally, numerous novel N-heterocyclic analogues with remarkable physiological significance and extended pharmaceutical applications are escalating progressively. Hence, the classical synthetic protocols need to be improvised according to modern requirements for efficient and eco-friendly approaches. Numerous methodologies and technologies emerged to address the green and sustainable production of various pharmaceutically and medicinally important N-heterocyclic compounds in last few years. In this context, the current review unveils greener alternatives for direct access to categorically differentiated N-heterocyclic derivatives and its application in the establishment of biologically active potent molecules for drug design. The green and sustainable methods accentuated in this review includes microwave-assisted reactions, solvent-free approaches, heterogeneous catalysis, ultrasound reactions, and biocatalysis.
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Affiliation(s)
- Suman Majee
- Amity Institute of Click Chemistry Research and Studies, Amity University, Sector 125, Noida 201313, Uttar Pradesh, India
- Amity Institute of Biotechnology, Amity University, Sector 125, Noida 201313, Uttar Pradesh, India
| | - Mansi Sarav
- Amity Institute of Biotechnology, Amity University, Sector 125, Noida 201313, Uttar Pradesh, India
| | - Bimal Krishna Banik
- Department of Mathematics and Natural Sciences, College of Sciences and Human Studies, Prince Mohammad Bin Fahd University, Al Khobar 31952, Saudi Arabia
| | - Devalina Ray
- Amity Institute of Click Chemistry Research and Studies, Amity University, Sector 125, Noida 201313, Uttar Pradesh, India
- Amity Institute of Biotechnology, Amity University, Sector 125, Noida 201313, Uttar Pradesh, India
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Igarashi Y. Development of a drug discovery approach from microbes with a special focus on isolation sources and taxonomy. J Antibiot (Tokyo) 2023:10.1038/s41429-023-00625-y. [PMID: 37188757 DOI: 10.1038/s41429-023-00625-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/12/2023] [Accepted: 04/21/2023] [Indexed: 05/17/2023]
Abstract
After the successful discoveries of numerous antibiotics from microorganisms, frequent reisolation of known compounds becomes an obstacle in further development of new drugs from natural products. Exploration of biological sources that can provide novel scaffolds is thus an urgent matter in drug lead screening. As an alternative source to the conventionally used soil microorganisms, we selected endophytic actinomycetes, marine actinomycetes, and actinomycetes in tropical areas for investigation and found an array of new bioactive compounds. Furthermore, based on the analysis of the distribution pattern of biosynthetic gene clusters in bacteria together with available genomic data, we speculated that biosynthetic gene clusters for secondary metabolites are specific to each genus. Based on this assumption, we investigated actinomycetal and marine bacterial genera from which no compounds have been reported, which led to the discovery of a variety of skeletally novel bioactive compounds. These findings suggest that consideration of environmental factor and taxonomic position is critically effective in the selection of potential strains producing structurally unique compounds.
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Affiliation(s)
- Yasuhiro Igarashi
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama, 939-0398, Japan.
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