1
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Huang L, Liu MD, Hu YW, Chen LJ, Deng Y, Gu YC, Bian Q, Guo DL, Wang GZ. Secondary metabolites isolated from Trichoderma hamatum b-3 and their fungicidal activity. Fitoterapia 2024; 174:105880. [PMID: 38431026 DOI: 10.1016/j.fitote.2024.105880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 02/27/2024] [Accepted: 02/27/2024] [Indexed: 03/05/2024]
Abstract
An undescribed trichodenone derivative (1), two new diketopiperazines (3 and 4) along with a bisabolane analog (2) were isolated from Trichoderma hamatum b-3. The structures of the new findings were established through comprehensive analyses of spectral evidences in HRESIMS, 1D and 2D NMR, Marfey's analysis as well as comparisons of ECD. The absolute configuration of 2 was unambiguously confirmed by NMR, ECD calculation and Mo2(AcO)4 induced circular dichroism. Compounds 1-4 were tested for their fungicidal effects against eight crop pathogenic fungi, among which 1 showed 51% inhibition against Sclerotinia sclerotiorum at a concentration of 50 μg/mL.
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Affiliation(s)
- Li Huang
- State Key Laboratory of Southwestern Chinese Medicine Resource, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Meng-Dan Liu
- State Key Laboratory of Southwestern Chinese Medicine Resource, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yi-Wen Hu
- State Key Laboratory of Southwestern Chinese Medicine Resource, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Li-Juan Chen
- State Key Laboratory of Southwestern Chinese Medicine Resource, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yun Deng
- State Key Laboratory of Southwestern Chinese Medicine Resource, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yu-Cheng Gu
- Syngenta Jealott's Hill International Research Centre, Berkshire, UK
| | - Qiang Bian
- National Pesticide Engineering Research Center (Tianjin), State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Da-Le Guo
- State Key Laboratory of Southwestern Chinese Medicine Resource, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
| | - Guang-Zhi Wang
- State Key Laboratory of Southwestern Chinese Medicine Resource, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
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2
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Zheng Y, Qin S, Xu L, Sang Z, Chen C, Tan J, Huang Y, Li M, Zou Z. Ochrolines A-C, three new indole diketopiperazines from cultures of endophytic fungi Bionectria ochroleuca SLJB-2. Fitoterapia 2024; 173:105809. [PMID: 38168565 DOI: 10.1016/j.fitote.2023.105809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 12/17/2023] [Accepted: 12/29/2023] [Indexed: 01/05/2024]
Abstract
Three new indole diketopiperazines, ochrolines A-C (1-3), along with three known compounds (4-6), were isolated and identified from the EtOAc extract of the solid fermentation of Bionectria ochroleuca SLJB-2. Notably, compound 1 featured a natural rarely-occurring caged skeleton with a 6/5/6/7 heterotetracyclic bridged ring system. The structures including absolute configurations of 1-3 were fully accomplished by extensive spectroscopic analyses, DFT GIAO 13C NMR and electronic circular dichroism (ECD) calculations. The plausible biogenetic pathways of these new indole diketopiperazines were also proposed. Moreover, the cytotoxic activity screening revealed that compound 2 exhibited moderate inhibitory effect against A549 with inhibition rate of 57.44% at the concentration of 50 μM and compound 1 exhibited mild inhibitory activities against A549, Hela and MCF-7.
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Affiliation(s)
- Yuting Zheng
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China; Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha 410013, China
| | - Siyu Qin
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China; Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha 410013, China
| | - Li Xu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China; Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha 410013, China
| | - Zihuan Sang
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China; Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha 410013, China
| | - Chen Chen
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China; Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha 410013, China
| | - Jianbing Tan
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China; Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha 410013, China
| | - Yuantao Huang
- Affiliated Haikou Hospital of Xiangya School of Medicine, Central South University, Haikou 570100, China
| | - Meifang Li
- Affiliated Haikou Hospital of Xiangya School of Medicine, Central South University, Haikou 570100, China
| | - Zhenxing Zou
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China; Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha 410013, China.
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3
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El-Kashef DH, Obidake DD, Schiedlauske K, Deipenbrock A, Scharf S, Wang H, Naumann D, Friedrich D, Miljanovic S, Haj Hassani Sohi T, Janiak C, Pfeffer K, Teusch N. Indole Diketopiperazine Alkaloids from the Marine Sediment-Derived Fungus Aspergillus chevalieri against Pancreatic Ductal Adenocarcinoma. Mar Drugs 2023; 22:5. [PMID: 38276643 PMCID: PMC10820104 DOI: 10.3390/md22010005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/14/2023] [Accepted: 12/17/2023] [Indexed: 01/27/2024] Open
Abstract
A new prenylated indole diketopiperazine alkaloid, rubrumline P (1), was isolated along with six more analogues and characterized from the fermentation culture of a marine sediment-derived fungus, Aspergillus chevalieri, collected at a depth of 15 m near the lighthouse in Dahab, Red Sea, Egypt. In the current study, a bioassay-guided fractionation allowed for the identification of an active fraction displaying significant cytotoxic activity against the human pancreatic adenocarcinoma cell line PANC-1 from the EtOAc extract of the investigated fungus compared to the standard paclitaxel. The structures of the isolated compounds from the active fraction were established using 1D/2D NMR spectroscopy and mass spectrometry, together with comparisons with the literature. The absolute configuration of the obtained indole diketopiperazines was established based on single-crystal X-ray diffraction analyses of rubrumline I (2) and comparisons of optical rotations and NMR data, as well as on biogenetic considerations. Genome sequencing indicated the formation of prenyltransferases, which was subsequently confirmed by the isolation of mono-, di-, tri-, and tetraprenylated compounds. Compounds rubrumline P (1) and neoechinulin D (4) confirmed preferential cytotoxic activity against PANC-1 cancer cells with IC50 values of 25.8 and 23.4 µM, respectively. Although the underlying mechanism-of-action remains elusive in this study, cell cycle analysis indicated a slight increase in the sub-G1 peak after treatment with compounds 1 and 4.
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Affiliation(s)
- Dina H. El-Kashef
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (D.H.E.-K.)
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, 61519 Minia, Egypt
| | - Deborah D. Obidake
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (D.H.E.-K.)
| | - Katja Schiedlauske
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (D.H.E.-K.)
| | - Alina Deipenbrock
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (D.H.E.-K.)
| | - Sebastian Scharf
- Institute of Medical Microbiology and Hospital Hygiene, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany
| | - Hao Wang
- Hainan Key Laboratory for Research and Development of Natural Products from Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Daniela Naumann
- Department of Chemistry and Biochemistry, University of Cologne, 50939 Cologne, Germany
| | - Daniel Friedrich
- Department of Chemistry and Biochemistry, University of Cologne, 50939 Cologne, Germany
| | - Simone Miljanovic
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (D.H.E.-K.)
| | - Takin Haj Hassani Sohi
- Institute of Inorganic Chemistry and Structural Chemistry, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Christoph Janiak
- Institute of Inorganic Chemistry and Structural Chemistry, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Klaus Pfeffer
- Institute of Medical Microbiology and Hospital Hygiene, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany
| | - Nicole Teusch
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (D.H.E.-K.)
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4
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Zhang KT, Huang ZP, Xu XR, Li SH, Xu YX, Zhao Q, Zhang XM. Two new diketopiperazines from the Cordyceps fungus Samsoniella sp. XY4. J Antibiot (Tokyo) 2023; 76:735-740. [PMID: 37789127 DOI: 10.1038/s41429-023-00662-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 09/18/2023] [Accepted: 09/21/2023] [Indexed: 10/05/2023]
Abstract
Two new diketopiperazines, namely samsoniellain A (1) and samsoniellain B (2), together with two known compounds (3, 4) were isolated from Cordyceps fungus Samsoniella sp. XY4. The planar structures of 1 and 2 were determined by HRESIMS, 1D and 2D NMR spectroscopy. The absolute configurations of 1 and 2 were determined by comparison of quantum chemical TDDFT calculated and experimental ECD spectra. Results of antimicrobial activity indicated that compound 2 showed weak bacteriostatic activities against S. typhimurium χ 8956, H. influenza ATCC 10211, MRSA 2024 with the MIC values of 128, 256, and 256 μg ml-1, respectively. This is the first report about secondary metabolites of Samsoniella sp.
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Affiliation(s)
- Ke-Tao Zhang
- School of Basic Medical Science, School of Chinese Medicine, Yunnan University of Chinese Medicine, Kun Ming, 650500, Yunnan, China
| | - Zhi-Pu Huang
- School of Basic Medical Science, School of Chinese Medicine, Yunnan University of Chinese Medicine, Kun Ming, 650500, Yunnan, China
| | - Xiao-Rong Xu
- School of Basic Medical Science, School of Chinese Medicine, Yunnan University of Chinese Medicine, Kun Ming, 650500, Yunnan, China
| | - Si-Heng Li
- School of Basic Medical Science, School of Chinese Medicine, Yunnan University of Chinese Medicine, Kun Ming, 650500, Yunnan, China
| | - Yu-Xiao Xu
- School of Basic Medical Science, School of Chinese Medicine, Yunnan University of Chinese Medicine, Kun Ming, 650500, Yunnan, China
| | - Qing Zhao
- School of Basic Medical Science, School of Chinese Medicine, Yunnan University of Chinese Medicine, Kun Ming, 650500, Yunnan, China.
| | - Xiao-Mei Zhang
- School of Basic Medical Science, School of Chinese Medicine, Yunnan University of Chinese Medicine, Kun Ming, 650500, Yunnan, China.
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5
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Huang Y, Li J, Chen S, Liu W, Wu M, Zhu D, Xie Y. [Advances in the biosynthesis of cyclodipeptide type natural products derived from actinomycetes]. Sheng Wu Gong Cheng Xue Bao 2023; 39:4497-4516. [PMID: 38013180 DOI: 10.13345/j.cjb.230068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Cyclodipeptide (CDP) composed of two amino acids is the simplest cyclic peptide. These two amino acids form a typical diketopiperazine (DKP) ring by linking each other with peptide bonds. This characteristic stable ring skeleton is the foundation of CDP to display extensive and excellent bioactivities, which is beneficial for CDPs' pharmaceutical research and development. The natural CDP products are well isolated from actinomycetes. These bacteria can synthesize DKP backbones with nonribosomal peptide synthetase (NRPS) or cyclodipeptide synthase (CDPS). Moreover, actinomycetes could produce a variety of CDPs through different enzymatic modification. The presence of these abundant and diversified catalysis indicates that actinomycetes are promising microbial resource for exploring CDPs. This review summarized the pathways for DKP backbones biosynthesis and their post-modification mechanism in actinomycetes. The aim of this review was to accelerate the genome mining of CDPs and their isolation, purification and structure identification, and to facilitate revealing the biosynthesis mechanism of novel CDPs as well as their synthetic biology design.
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Affiliation(s)
- Yunhong Huang
- Key Laboratory of Protection and Utilization of Subtropic Plant Resources of Jiangxi Province, College of Life Sciences, Jiangxi Normal University, Nanchang 330022, Jiangxi, China
| | - Jinzu Li
- Key Laboratory of Protection and Utilization of Subtropic Plant Resources of Jiangxi Province, College of Life Sciences, Jiangxi Normal University, Nanchang 330022, Jiangxi, China
| | - Simin Chen
- Key Laboratory of Protection and Utilization of Subtropic Plant Resources of Jiangxi Province, College of Life Sciences, Jiangxi Normal University, Nanchang 330022, Jiangxi, China
| | - Wenhui Liu
- Key Laboratory of Protection and Utilization of Subtropic Plant Resources of Jiangxi Province, College of Life Sciences, Jiangxi Normal University, Nanchang 330022, Jiangxi, China
| | - Miaoer Wu
- Key Laboratory of Protection and Utilization of Subtropic Plant Resources of Jiangxi Province, College of Life Sciences, Jiangxi Normal University, Nanchang 330022, Jiangxi, China
| | - Du Zhu
- Key Laboratory of Protection and Utilization of Subtropic Plant Resources of Jiangxi Province, College of Life Sciences, Jiangxi Normal University, Nanchang 330022, Jiangxi, China
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, Jiangxi, China
| | - Yunchang Xie
- Key Laboratory of Protection and Utilization of Subtropic Plant Resources of Jiangxi Province, College of Life Sciences, Jiangxi Normal University, Nanchang 330022, Jiangxi, China
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, Jiangxi, China
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6
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Hong Q, Guo MM, Yang J, Wei X, Liao L, Xin XJ, Zhang D, An FL. Four previously undescribed diketopiperazines from marine fungus Aspergillus puniceus FAHY0085 and their effects on liver X receptor α. Phytochemistry 2023; 214:113816. [PMID: 37536654 DOI: 10.1016/j.phytochem.2023.113816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 07/29/2023] [Accepted: 08/01/2023] [Indexed: 08/05/2023]
Abstract
Four previously undescribed diketopiperazine-type alkaloids including one oxepin-containing diketopiperazine-type alkaloid, oxepinamide L (1), three 4-quinazolinone alkaloids, puniceloids E-G (10-12), together with 12 known analogues, protuboxepin D (2), oxepinamides D-G, J-K and I (3-9), puniceloids B-D (13-15) and protubonine B (16), were isolated from the culture of the marine-derived fungus Aspergillus puniceus FAHY0085. The structures of the previously undescribed compounds were comprehensively elucidated by detailed interpretation of their NMR and HRESIMS data. Their absolute configurations were unambiguously determined by ROESY experiments, Marfey's method, calculated ECD experiments and single-crystal X-ray diffraction analysis. Compounds (3-4, 6-8, 14-15) were evaluated for their cytotoxic activity against HepG2, MCF-7, SW1116 and HeLa cells and compound 6 and 14 showed moderate cytotoxic activity against HeLa cells with IC50 49.61 ± 2.91 and 28.38 ± 1.57 μM, respectively. Compounds (1-8, 11-15) were screened for their transcriptional activation of liver X receptor α and compound 11 with known compounds 13-15 showed significant transcriptional activation of liver X receptor α with EC50 values in the range 2-50 μM.
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Affiliation(s)
- Qi Hong
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, School of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Miao-Miao Guo
- Key Laboratory of Cosmetic, China National Light Industry, Beijing Technology and Business University, No. 11/33, Fucheng Road, Beijing, 100048, China
| | - Jin Yang
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, School of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Xing Wei
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, School of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Li Liao
- Key Laboratory for Polar Science, Ministry of Natural Resources, Polar Research Institute of China, Shanghai, 200136, China; School of Oceanography, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xiu-Juan Xin
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, School of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Di Zhang
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, School of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China; Jiangsu Institute of Marine Resources Development, School of Pharmacy, Jiangsu Ocean University, Lianyungang, 222005, PR China.
| | - Fa-Liang An
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, School of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China; Marine Biomedical Science and Technology Innovation Platform of Lin-gang Special Area, No.4, Lane 218, Haiji Sixth Road, Shanghai, 201306, China.
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7
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Sun C, Ma BD, Li G, Tian W, Yang L, Peng H, Lin Z, Deng Z, Kong XD, Qu X. Engineering the Substrate Specificity of a P450 Dimerase Enables the Collective Biosynthesis of Heterodimeric Tryptophan-Containing Diketopiperazines. Angew Chem Int Ed Engl 2023; 62:e202304994. [PMID: 37083030 DOI: 10.1002/anie.202304994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 04/22/2023]
Abstract
Heterodimeric tryptophan-containing diketopiperazines (HTDKPs) are an important class of bioactive secondary metabolites. Biosynthesis offers a practical opportunity to access their bioactive structural diversity, however, it is restricted by the limited substrate scopes of the HTDKPs-forming P450 dimerases. Herein, by genome mining and investigation of the sequence-product relationships, we unveiled three important residues (F387, F388 and E73) in these P450s that are pivotal for selecting different diketopiperazine (DKP) substrates in the upper binding pocket. Engineering these residues in NasF5053 significantly expanded its substrate specificity and enabled the collective biosynthesis, including 12 self-dimerized and at least 81 cross-dimerized HTDKPs. Structural and molecular dynamics analysis of F387G and E73S revealed that they control the substrate specificity via reducing steric hindrance and regulating substrate tunnels, respectively.
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Affiliation(s)
- Chenghai Sun
- State Key Laboratory of Microbial Metabolism and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Rd., 200240, Shanghai, China
- Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, 201203, Shanghai, China
| | - Bao-Di Ma
- State Key Laboratory of Microbial Metabolism and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Rd., 200240, Shanghai, China
- Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, 201203, Shanghai, China
| | - Guangjun Li
- Abiochem Biotechnology Co. Ltd., 200240, Shanghai, China
| | - Wenya Tian
- State Key Laboratory of Microbial Metabolism and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Rd., 200240, Shanghai, China
- Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, 201203, Shanghai, China
| | - Lu Yang
- State Key Laboratory of Microbial Metabolism and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Rd., 200240, Shanghai, China
- Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, 201203, Shanghai, China
| | - Haidong Peng
- State Key Laboratory of Microbial Metabolism and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Rd., 200240, Shanghai, China
- Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, 201203, Shanghai, China
| | - Zhi Lin
- State Key Laboratory of Microbial Metabolism and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Rd., 200240, Shanghai, China
- Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, 201203, Shanghai, China
| | - Zixin Deng
- State Key Laboratory of Microbial Metabolism and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Rd., 200240, Shanghai, China
| | - Xu-Dong Kong
- State Key Laboratory of Microbial Metabolism and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Rd., 200240, Shanghai, China
- Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, 201203, Shanghai, China
| | - Xudong Qu
- State Key Laboratory of Microbial Metabolism and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Rd., 200240, Shanghai, China
- Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, 201203, Shanghai, China
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8
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Shende VV, Harris NR, Sanders JN, Newmister SA, Khatri Y, Movassaghi M, Houk KN, Sherman DH. Molecular Dynamics Simulations Guide Chimeragenesis and Engineered Control of Chemoselectivity in Diketopiperazine Dimerases. Angew Chem Int Ed Engl 2023; 62:e202210254. [PMID: 36610039 PMCID: PMC10159983 DOI: 10.1002/anie.202210254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 12/14/2022] [Accepted: 01/05/2023] [Indexed: 01/09/2023]
Abstract
In the biosynthesis of the tryptophan-linked dimeric diketopiperazines (DKPs), cytochromes P450 selectively couple DKP monomers to generate a variety of intricate and isomeric frameworks. To determine the molecular basis for selectivity of these biocatalysts we obtained a high-resolution crystal structure of selective Csp2 -N bond forming dimerase, AspB. Overlay of the AspB structure onto C-C and C-N bond forming homolog NzeB revealed no significant structural variance to explain their divergent chemoselectivities. Molecular dynamics (MD) simulations identified a region of NzeB with increased conformational flexibility relative to AspB, and interchange of this region along with a single active site mutation led to a variant that catalyzes exclusive C-N bond formation. MD simulations also suggest that intermolecular C-C or C-N bond formation results from a change in mechanism, supported experimentally through use of a substrate mimic.
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Affiliation(s)
- Vikram V Shende
- Life Sciences Institute, University of Michigan, Ann Arbor, MÌ 48109, USA
| | - Natalia R Harris
- Life Sciences Institute, University of Michigan, Ann Arbor, MÌ 48109, USA
| | - Jacob N Sanders
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA, USA
| | - Sean A Newmister
- Life Sciences Institute, University of Michigan, Ann Arbor, MÌ 48109, USA
| | - Yogan Khatri
- Life Sciences Institute, University of Michigan, Ann Arbor, MÌ 48109, USA
| | - Mohammad Movassaghi
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Kendall N Houk
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA, USA
| | - David H Sherman
- Life Sciences Institute, University of Michigan, Ann Arbor, MÌ 48109, USA
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9
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Ishizu T, Fujitani Y, Nishio R, Kamei H. Chiral Recognition of Diketopiperazine Containing Proline Residues by (-)-Epigallocatechin-3-O-gallate in Water. Chem Pharm Bull (Tokyo) 2023; 71:804-811. [PMID: 37914258 DOI: 10.1248/cpb.c23-00369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
The stoichiometry and precipitate yield of a complex of (-)-epigallocatechin-3-O-gallate (EGCg) and cyclo(Pro-Xxx) (Xxx = phenylalanine (Phe), tyrosine (Tyr)) were evaluated using integrated values of their proton signals by quantitative 1H-NMR (q NMR). It was determined to be a 1 : 1 complex of EGCg and cyclo(Pro-Xxx). The change in the chemical shift value of proton signals of cyclo(Pro-Xxx) in 1H-NMR spectra by adding standard amounts of EGCg was investigated. Differences in chemical shift values of H8α, H7αβ, H8β, H10, H9, and H3 proton signals between cyclo(L-Pro-L-Phe) and cyclo(D-Pro-D-Phe), and those of H8α, H7αβ, H8β, H10, H9, H3, and H13 proton signals between cyclo(L-Pro-L-Tyr) and cyclo(D-Pro-D-Tyr) were observed as a significant difference at 54 mmol/L of EGCg. It was found that their chirality was clearly recognized by EGCg. The significant difference in the change of the chemical shift value of H8α proton signals between cyclo(L-Pro-L-Xxx) and cyclo(D-Pro-D-Xxx) was the largest, and the difference was considered to have resulted from the difference in the ratio of extended conformer in equilibrium between folded and extended conformers. Such a significant difference in change values between cyclo(L-Pro-D-Xxx) and cyclo(D-Pro-L-Xxx) was not observed due to a rigid intramolecular CH-π interaction. EGCg did not clearly recognize the chirality of cyclo(L-Pro-D-Xxx) and cyclo(D-Pro-L-Xxx).
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Affiliation(s)
- Takashi Ishizu
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University
| | - Yuka Fujitani
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University
| | - Runa Nishio
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University
| | - Haruka Kamei
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University
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10
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Ding Z, Li F, Xie L, Gu M, Li C, Liu C, Peng C, Li W. Design and Synthesis of Novel Phenylahistin Derivatives Based on Co-Crystal Structures as Potent Microtubule Inhibitors for Anti-Cancer Therapy. Mar Drugs 2022; 20:md20120752. [PMID: 36547899 PMCID: PMC9785606 DOI: 10.3390/md20120752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/24/2022] [Accepted: 11/25/2022] [Indexed: 12/04/2022] Open
Abstract
Phenylahistin is a naturally occurring marine product with a diketopiperazine structure that can bind to the colchicine site of microtubulin as a possible anticancer agent. To develop more potent microtubule inhibitors, novel phenylahistin derivatives were designed and synthesized based on the co-crystal complexes of phenylahistin derivatives and microtubulin. We established a focused library of imidazole-type molecules for the introduction of different groups to the C-ring and A-ring of phenylahistin. Structure-activity relationship studies indicated that appropriate hydrocarbon substituents and unsaturated alkenyl substituents at the 1-position of the imidazole group are important for improving the activity of such compounds. In addition, this study found that propylamine groups could maintain the activity of these compounds, as exemplified by compound 16d (IC50 = 5.38 nM, NCI-H460). Compound 15p (IC50 = 1.03 nM, NCI-H460) with an allyl group exhibited potent cytotoxic activity at the nanomolar level against human lung cancer cell lines. Immunofluorescence assay indicated that compound 15p could efficiently inhibited microtubule polymerization and induced a high expression of caspase-3. 15p also displayed good pharmacokinetic characteristics in vitro. Additionally, the growth of H22 transplanted tumors was significantly inhibited in BALB/c mice when 15p alone was administered at 4 mg/kg, and the tumor inhibition rate was as much as 65%. Importantly, the continuous administration of 15p resulted in a lower toxicity than that of docetaxel (10 mg/kg) and cyclophosphamide (20 mg/kg). Overall, the novel allyl-imidazole-diketopiperazine-type derivatives could be considered safe and effective potential agents for cancer treatment.
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Affiliation(s)
- Zhongpeng Ding
- Medical College, Linyi University, Shuangling Road, Linyi 276000, China
- Shenzhen BGI Marine Science & Technology Co., Ltd., Shenzhen 518002, China
- Shenzhen Huahong Marine Biomedical Co., Ltd., Shenzhen 518002, China
- Correspondence: (Z.D.); (W.L.)
| | - Feifei Li
- Shenzhen BGI Marine Science & Technology Co., Ltd., Shenzhen 518002, China
- Shenzhen Huahong Marine Biomedical Co., Ltd., Shenzhen 518002, China
| | - Lianghui Xie
- Shenzhen BGI Marine Science & Technology Co., Ltd., Shenzhen 518002, China
- Shenzhen Huahong Marine Biomedical Co., Ltd., Shenzhen 518002, China
| | - Minqing Gu
- Shenzhen BGI Marine Science & Technology Co., Ltd., Shenzhen 518002, China
- Shenzhen Huahong Marine Biomedical Co., Ltd., Shenzhen 518002, China
| | - Chunlei Li
- Medical College, Linyi University, Shuangling Road, Linyi 276000, China
| | - Chang Liu
- Medical College, Linyi University, Shuangling Road, Linyi 276000, China
| | - Chao Peng
- Shenzhen BGI Marine Science & Technology Co., Ltd., Shenzhen 518002, China
- Shenzhen Huahong Marine Biomedical Co., Ltd., Shenzhen 518002, China
| | - Wenbao Li
- Shenzhen BGI Marine Science & Technology Co., Ltd., Shenzhen 518002, China
- Shenzhen Huahong Marine Biomedical Co., Ltd., Shenzhen 518002, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
- Innovation Center for Marine Drug Screening and Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
- Correspondence: (Z.D.); (W.L.)
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11
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Sahrawat P, Kowalczyk P, Koszelewski D, Szymczak M, Kramkowski K, Wypych A, Ostaszewski R. Influence of Open Chain and Cyclic Structure of Peptidomimetics on Antibacterial Activity in E. coli Strains. Molecules 2022; 27:molecules27113633. [PMID: 35684570 PMCID: PMC9182016 DOI: 10.3390/molecules27113633] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 05/25/2022] [Accepted: 05/31/2022] [Indexed: 12/25/2022] Open
Abstract
An efficient method for the synthesis of functionalized peptidomimetics via multicomponent Ugi reaction has been developed. The application of trifluoroethanol (TFE) as a reaction medium provided desired products with good yields. Further, using the developed cyclisation reaction, the obtained peptidomimetics were transformed into the cyclic analogues (diketopiperazines, DKPs). The goal of the performed studies was to revised and compare whether the structure of the obtained structurally flexible acyclic peptidomimetics and their rigid cycling analogue DKPs affect antimicrobial activity. We studied the potential of synthesized peptidomimetics, both cyclic and acyclic, as antimicrobial drugs on model E. coli bacteria strains (k12, R2–R4). The biological assays reveal that DKPs hold more potential as antimicrobial drugs compared to open chain Ugi peptidomimetics. We believe that it can be due to the rigid cyclic structure of DKPs which promotes the membrane penetration in the cell of studied pathogens. The obtained data clearly indicate the high antibiotic potential of synthesized diketopiperazine derivatives over tested antibiotics.
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Affiliation(s)
- Parul Sahrawat
- Institute of Organic Chemistry PAS, Kasprzaka 44/52, 01-224 Warsaw, Poland; (P.S.); (D.K.)
| | - Paweł Kowalczyk
- Department of Animal Nutrition, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Instytucka 3, 05-110 Jabłonna, Poland
- Correspondence: (P.K.); (R.O.)
| | - Dominik Koszelewski
- Institute of Organic Chemistry PAS, Kasprzaka 44/52, 01-224 Warsaw, Poland; (P.S.); (D.K.)
| | - Mateusz Szymczak
- Department of Molecular Virology, Faculty of Biology, Institute of Microbiology, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland;
| | - Karol Kramkowski
- Department of Physical Chemistry, Medical University of Bialystok, Kilińskiego 1 Str., 15-089 Białystok, Poland;
| | - Aleksandra Wypych
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Torun, ul. Wileńska 4, 87-100 Toruń, Poland;
| | - Ryszard Ostaszewski
- Institute of Organic Chemistry PAS, Kasprzaka 44/52, 01-224 Warsaw, Poland; (P.S.); (D.K.)
- Correspondence: (P.K.); (R.O.)
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12
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Uz Zaman KA, Sarotti AM, Wu X, DeVine L, Cao S. Polyketides, diketopiperazines and an isochromanone from the marine-derived fungal strain Fusarium graminearum FM1010 from Hawaii. Phytochemistry 2022; 198:113138. [PMID: 35219734 DOI: 10.1016/j.phytochem.2022.113138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 02/11/2022] [Accepted: 02/19/2022] [Indexed: 06/14/2023]
Abstract
The fungal strain Fusarium graminearum FM1010 was isolated from a shallow-water volcanic rock known as "live rock" at the Richardson's Beach, Hilo, Hawaii. Eleven specialised metabolites, including two undescribed diketopiperazines, three undescribed polyketides, and one undescribed isochromanone, along with five known fusarielin derivatives were obtained from F. graminearum FM1010. The structures of the six undescribed compounds were elucidated by extensive analysis of NMR spectroscopy, HRESIMS, chemical reactions, and electronic circular dichroism (ECD) data. Kaneoheoic acids G-I showed mild inhibitory activity against S. aureus with the MIC values in the range of 20-40 μg/mL when assayed in combination with chloramphenicol (half of the MIC, 1 μg/mL), an FDA approved antibiotic. Kaneoheoic acid I exhibited both anti-proliferative activity against ovarian cancer cell line A2780 and TNF-α induced NF-κB inhibitory activity with the IC50 values of 18.52 and 15.86 μM, respectively.
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Affiliation(s)
- Kh Ahammad Uz Zaman
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI, 96720, United States
| | - Ariel M Sarotti
- Instituto de Química Rosario (CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario, 2000, Argentina.
| | - Xiaohua Wu
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI, 96720, United States
| | - Lela DeVine
- Department of Cellular and Molecular Biology, Barnard College of Columbia University, USA.
| | - Shugeng Cao
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI, 96720, United States.
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13
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Song J, Xu K, Liu C, Wang T, Luan X, Zhu L, Chu Z, Fu X, Chang W, Wang X, Lou H. Bioactive specialised metabolites from the endophytic fungus Xylaria sp. of Cudrania tricuspidata. Phytochemistry 2022; 196:113079. [PMID: 34995881 DOI: 10.1016/j.phytochem.2021.113079] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/28/2021] [Accepted: 12/29/2021] [Indexed: 06/14/2023]
Abstract
Fourteen undescribed compounds, including five 2,5-diarylcyclopentenones xylariaones A1-B2, seven α-pyrone derivatives xylaripyones A-G, one γ-pyrone derivative xylaripyone H, one diketopiperazine cyclo-(L-Leu-N-ethyl-L-Glu), and two known diketopiperazines, were isolated from cultures of the endophytic fungus Xylaria sp., which was separated from Cudrania tricuspidata Bureau ex Lavallée. Their structures were determined by analysing extensive spectroscopic data (HRESIMS and NMR) and electronic circular dichroism (ECD) calculations. Furthermore, these compounds were evaluated for potential antiproliferative activity against the human tumour cell lines PC3 and A549, and the results showed that xylaripyone D exhibited moderate inhibitory activity against the proliferation of PC3 cell lines with an IC50 value of 14.75 μM. Meanwhile, xylariaone A3 and xylaripyone F displayed weak inhibitory effects on NO production in RAW 264.7 murine macrophages with IC50 values of 49.76 and 69.68 μM, respectively.
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Affiliation(s)
- Jintong Song
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Ke Xu
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China; The Second Hospital of Shandong University, No. 247 Bei-Yuan Street, Jinan, 250033, PR China
| | - Chunyu Liu
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Tian Wang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Xiaoyi Luan
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Lihua Zhu
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Zhaojun Chu
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Xiaojie Fu
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Wenqiang Chang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Xiaoning Wang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Hongxiang Lou
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China.
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14
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Nishiuchi K, Ohashi H, Nishioka K, Yamasaki M, Furuta M, Mashiko T, Tomoshige S, Ohgane K, Kamisuki S, Watashi K, Kuramochi K. Synthesis and Antiviral Activities of Neoechinulin B and Its Derivatives. J Nat Prod 2022; 85:284-291. [PMID: 34967639 PMCID: PMC8751641 DOI: 10.1021/acs.jnatprod.1c01120] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Indexed: 06/14/2023]
Abstract
We have previously reported that neoechinulin B (1a), a prenylated indole diketopiperazine alkaloid, shows antiviral activities against hepatitis C virus (HCV) via the inactivation of the liver X receptors (LXRs) and the resultant disruption of double-membrane vesicles. In this study, a two-step synthesis of the diketopiperazine scaffold of 1a was achieved by the base-induced coupling of 1,4-diacetyl-3-{[(tert-butyldimethylsilyl)oxy]methyl}piperazine-2,5-dione with aldehydes, followed by the treatment of the resultant coupling products with tetra-n-butylammonium fluoride. Compound 1a and its 16 derivatives 1b-q were prepared using this method. Furthermore, variecolorin H, a related alkaloid, was obtained by the acid treatment of 1a in MeOH. The antiviral evaluation of 1a and its derivatives revealed that 1a, 1c, 1d, 1h, 1j, 1l, and 1o exhibited both anti-HCV and anti-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) activities. The results of this study indicate that the exomethylene moiety on the diketopiperazine ring is important for the antiviral activities. The antiviral compounds can inhibit the production of HCV and SARS-CoV-2 by inactivating LXRs.
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Affiliation(s)
- Kota Nishiuchi
- Department
of Applied Biological Science, Tokyo University
of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Hirofumi Ohashi
- Department
of Applied Biological Science, Tokyo University
of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
- Department
of Virology II, National Institute of Infectious
Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
- Research
Center for Drug and Vaccine Development, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Kazane Nishioka
- Department
of Applied Biological Science, Tokyo University
of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
- Department
of Virology II, National Institute of Infectious
Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Masako Yamasaki
- Department
of Applied Biological Science, Tokyo University
of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
- Department
of Virology II, National Institute of Infectious
Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Masateru Furuta
- Department
of Applied Biological Science, Tokyo University
of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Takumi Mashiko
- Department
of Applied Biological Science, Tokyo University
of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Shusuke Tomoshige
- Department
of Applied Biological Science, Tokyo University
of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Kenji Ohgane
- Department
of Applied Biological Science, Tokyo University
of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Shinji Kamisuki
- School
of Veterinary Medicine and Center for Human and Animal Symbiosis Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
| | - Koichi Watashi
- Department
of Applied Biological Science, Tokyo University
of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
- Department
of Virology II, National Institute of Infectious
Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
- Research
Center for Drug and Vaccine Development, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Kouji Kuramochi
- Department
of Applied Biological Science, Tokyo University
of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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15
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Wang X, Serrano R, González-Menéndez V, Mackenzie TA, Ramos MC, Frisvad JC, Larsen TO. A Molecular Networking Based Discovery of Diketopiperazine Heterodimers and Aspergillicins from Aspergillus caelatus. J Nat Prod 2022; 85:25-33. [PMID: 35045259 DOI: 10.1021/acs.jnatprod.1c00526] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The number of species in Aspergillus section Flavi has recently increased to 36 and includes some of the most important and well-known species in the genus Aspergillus. Numerous secondary metabolites, especially mycotoxins, have been reported from species such as A. flavus; however many of the more recently described species are less studied from a chemical point of view. This paper describes the use of MS/MS-based molecular networking to investigate the metabolome of A. caelatus leading to the discovery of several new diketopiperazine dimers and aspergillicins. An MS-guided isolation procedure yielded six new compounds, including asperazines D-H (1-5) and aspergillicin H (6). Asperazines G and H are artifacts derived from asperazines E and F formed during the separation process by formic acid. Two known compounds, aspergillicins A and C (7 and 8), were isolated from the same strain. Structures were elucidated by analyzing their HR-MS/MS and NMR spectroscopic data. The absolute configuration of asperazines D-F and aspergillicin H were deduced from the combination of NMR, Marfey's method, and ECD analyses.
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Affiliation(s)
- Xinhui Wang
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads 221, DK-2800 Kgs. Lyngby, Denmark
| | - Rachel Serrano
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, 18016 Armilla, Granada, Spain
| | | | - Thomas A Mackenzie
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, 18016 Armilla, Granada, Spain
| | - Maria C Ramos
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, 18016 Armilla, Granada, Spain
| | - Jens C Frisvad
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads 221, DK-2800 Kgs. Lyngby, Denmark
| | - Thomas O Larsen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads 221, DK-2800 Kgs. Lyngby, Denmark
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16
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Eshaghi B, Fofana J, Nodder SB, Gummuluru S, Reinhard BM. Virus-Mimicking Polymer Nanoparticles Targeting CD169 + Macrophages as Long-Acting Nanocarriers for Combination Antiretrovirals. ACS Appl Mater Interfaces 2022; 14:2488-2500. [PMID: 34995059 PMCID: PMC9126061 DOI: 10.1021/acsami.1c17415] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Monosialodihexosylganglioside (GM3)-presenting lipid-coated polymer nanoparticles (NPs) that recapitulate the sequestration of human immunodeficiency virus-1 (HIV-1) particles in CD169+ virus-containing compartments (VCCs) of macrophages were developed as carriers for delivery and sustained release of a combination of two antiretrovirals (ARVs), rilpivirine (RPV) and cabotegravir (CAB). RPV and CAB were co-loaded into GM3-presenting lipid-coated polylactic acid (PLA) and poly(lactic-co-glycolic acid) (PLGA) NPs without loss in potency of the drugs. GM3-presenting PLA NPs demonstrated the most favorable release properties and achieved inhibition of HIV-1 infection of primary human macrophages for up to 35 days. Intracellular localization of GM3-presenting PLA NPs in VCCs correlated with retention of intracellular ARV concentrations and sustained inhibition of HIV-1 infection. This work elucidates the design criteria of lipid-coated polymer NPs to utilize CD169+ macrophages as cellular drug depots for eradicating the viral reservoir sites or to achieve long-acting prophylaxis against HIV-1 infection.
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Affiliation(s)
- Behnaz Eshaghi
- Departments of Chemistry and The Photonics Center, Boston University, Boston, MA 02215, United States
| | - Josiane Fofana
- Department of Microbiology, Boston University School of Medicine, Boston, MA 02118, United States
| | - Sarah B. Nodder
- Department of Microbiology, Boston University School of Medicine, Boston, MA 02118, United States
| | - Suryaram Gummuluru
- Department of Microbiology, Boston University School of Medicine, Boston, MA 02118, United States
| | - Björn M. Reinhard
- Departments of Chemistry and The Photonics Center, Boston University, Boston, MA 02215, United States
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17
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Han Y, Luo H, Lu Q, Liu Z, Liu J, Zhang J, Wei Z, Li J. Quantum Mechanical-Based Stability Evaluation of Crystal Structures for HIV-Targeted Drug Cabotegravir. Molecules 2021; 26:molecules26237178. [PMID: 34885762 PMCID: PMC8659202 DOI: 10.3390/molecules26237178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 11/21/2021] [Accepted: 11/23/2021] [Indexed: 11/23/2022] Open
Abstract
The long-acting parenteral formulation of the HIV integrase inhibitor cabotegravir (GSK744) is currently being developed to prevent HIV infections, benefiting from infrequent dosing and high efficacy. The crystal structure can affect the bioavailability and efficacy of cabotegravir. However, the stability determination of crystal structures of GSK744 have remained a challenge. Here, we introduced an ab initio protocol to determine the stability of the crystal structures of pharmaceutical molecules, which were obtained from crystal structure prediction process starting from the molecular diagram. Using GSK744 as a case study, the ab initio predicted that Gibbs free energy provides reliable further refinement of the predicted crystal structures and presents its capability for becoming a crystal stability determination approach in the future. The proposed work can assist in the comprehensive screening of pharmaceutical design and can provide structural predictions and stability evaluation for pharmaceutical crystals.
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Affiliation(s)
- Yanqiang Han
- Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai 200092, China; (Y.H.); (Z.L.)
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Department of Micro/Nano-electronics, Shanghai Jiao Tong University, Shanghai 200240, China; (H.L.); (Q.L.)
| | - Hongyuan Luo
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Department of Micro/Nano-electronics, Shanghai Jiao Tong University, Shanghai 200240, China; (H.L.); (Q.L.)
| | - Qianqian Lu
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Department of Micro/Nano-electronics, Shanghai Jiao Tong University, Shanghai 200240, China; (H.L.); (Q.L.)
| | - Zeying Liu
- Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai 200092, China; (Y.H.); (Z.L.)
| | - Jinyun Liu
- Key Laboratory of Functional Molecular Solids of the Ministry of Education, Anhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
- Correspondence: (J.L.); (Z.W.); (J.L.)
| | - Jiarui Zhang
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA 02118, USA;
| | - Zhiyun Wei
- Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai 200092, China; (Y.H.); (Z.L.)
- Correspondence: (J.L.); (Z.W.); (J.L.)
| | - Jinjin Li
- Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai 200092, China; (Y.H.); (Z.L.)
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Department of Micro/Nano-electronics, Shanghai Jiao Tong University, Shanghai 200240, China; (H.L.); (Q.L.)
- Correspondence: (J.L.); (Z.W.); (J.L.)
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18
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Bojarska J, Mieczkowski A, Ziora ZM, Skwarczynski M, Toth I, Shalash AO, Parang K, El-Mowafi SA, Mohammed EHM, Elnagdy S, AlKhazindar M, Wolf WM. Cyclic Dipeptides: The Biological and Structural Landscape with Special Focus on the Anti-Cancer Proline-Based Scaffold. Biomolecules 2021; 11:1515. [PMID: 34680148 PMCID: PMC8533947 DOI: 10.3390/biom11101515] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 12/12/2022] Open
Abstract
Cyclic dipeptides, also know as diketopiperazines (DKP), the simplest cyclic forms of peptides widespread in nature, are unsurpassed in their structural and bio-functional diversity. DKPs, especially those containing proline, due to their unique features such as, inter alia, extra-rigid conformation, high resistance to enzyme degradation, increased cell permeability, and expandable ability to bind a diverse of targets with better affinity, have emerged in the last years as biologically pre-validated platforms for the drug discovery. Recent advances have revealed their enormous potential in the development of next-generation theranostics, smart delivery systems, and biomaterials. Here, we present an updated review on the biological and structural profile of these appealing biomolecules, with a particular emphasis on those with anticancer properties, since cancers are the main cause of death all over the world. Additionally, we provide a consideration on supramolecular structuring and synthons, based on the proline-based DKP privileged scaffold, for inspiration in the design of compound libraries in search of ideal ligands, innovative self-assembled nanomaterials, and bio-functional architectures.
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Affiliation(s)
- Joanna Bojarska
- Faculty of Chemistry, Institute of General & Inorganic Chemistry, Technical University of Lodz, 90-924 Lodz, Poland;
| | - Adam Mieczkowski
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland;
| | - Zyta M. Ziora
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia; (Z.M.Z.); (I.T.)
| | - Mariusz Skwarczynski
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (M.S.); (A.O.S.)
| | - Istvan Toth
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia; (Z.M.Z.); (I.T.)
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (M.S.); (A.O.S.)
- School of Pharmacy, The University of Queensland, Woolloongabba, QLD 4102, Australia
| | - Ahmed O. Shalash
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (M.S.); (A.O.S.)
| | - Keykavous Parang
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Harry and Diane Rinker Health Science Campus, School of Pharmacy, Chapman University, Irvine, CA 92618, USA; (K.P.); (S.A.E.-M.); (E.H.M.M.)
| | - Shaima A. El-Mowafi
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Harry and Diane Rinker Health Science Campus, School of Pharmacy, Chapman University, Irvine, CA 92618, USA; (K.P.); (S.A.E.-M.); (E.H.M.M.)
| | - Eman H. M. Mohammed
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Harry and Diane Rinker Health Science Campus, School of Pharmacy, Chapman University, Irvine, CA 92618, USA; (K.P.); (S.A.E.-M.); (E.H.M.M.)
| | - Sherif Elnagdy
- Botany Department, Faculty of Science, Cairo University, Giza 12613, Egypt; (S.E.); (M.A.)
| | - Maha AlKhazindar
- Botany Department, Faculty of Science, Cairo University, Giza 12613, Egypt; (S.E.); (M.A.)
| | - Wojciech M. Wolf
- Faculty of Chemistry, Institute of General & Inorganic Chemistry, Technical University of Lodz, 90-924 Lodz, Poland;
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19
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Domzalski A, Margent L, Vigo V, Dewan F, Pilarsetty NVK, Xu Y, Kawamura A. Unambiguous Stereochemical Assignment of Cyclo(Phe-Pro), Cyclo(Leu-Pro), and Cyclo(Val-Pro) by Electronic Circular Dichroic Spectroscopy. Molecules 2021; 26:molecules26195981. [PMID: 34641525 PMCID: PMC8512403 DOI: 10.3390/molecules26195981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/23/2021] [Accepted: 09/28/2021] [Indexed: 11/21/2022] Open
Abstract
2,5-diketopiperazines (DKPs) are cyclic dipeptides ubiquitously found in nature. In particular, cyclo(Phe-Pro), cyclo(Leu-Pro), and cyclo(Val-Pro) are frequently detected in many microbial cultures. Each of these DKPs has four possible stereoisomers due to the presence of two chirality centers. However, absolute configurations of natural DKPs are often ambiguous due to the lack of a simple, sensitive, and reproducible method for stereochemical assignment. This is an important problem because stereochemistry is a key determinant of biological activity. Here, we report a synthetic DKP library containing all stereoisomers of cyclo(Phe-Pro), cyclo(Leu-Pro), and cyclo(Val-Pro). The library was subjected to spectroscopic characterization using mass spectrometry, NMR, and electronic circular dichroism (ECD). It turned out that ECD can clearly differentiate DKP stereoisomers. Thus, our ECD dataset can serve as a reference for unambiguous stereochemical assignment of cyclo(Phe-Pro), cyclo(Leu-Pro), and cyclo(Val-Pro) samples from natural sources. The DKP library was also subjected to a biological screening using assays for E. coli growth and biofilm formation, which revealed distinct biological effects of cyclo(D-Phe-L-Pro).
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Affiliation(s)
- Alison Domzalski
- Biochemistry Ph.D. Program, The Graduate Center of CUNY, New York, NY 10016, USA; (A.D.); (F.D.); (Y.X.)
- Department of Chemistry, Hunter College of CUNY, New York, NY 10065, USA; (L.M.); (V.V.)
| | - Liliana Margent
- Department of Chemistry, Hunter College of CUNY, New York, NY 10065, USA; (L.M.); (V.V.)
| | - Valeria Vigo
- Department of Chemistry, Hunter College of CUNY, New York, NY 10065, USA; (L.M.); (V.V.)
| | - Faizunnahar Dewan
- Biochemistry Ph.D. Program, The Graduate Center of CUNY, New York, NY 10016, USA; (A.D.); (F.D.); (Y.X.)
- Department of Chemistry, Hunter College of CUNY, New York, NY 10065, USA; (L.M.); (V.V.)
| | | | - Yujia Xu
- Biochemistry Ph.D. Program, The Graduate Center of CUNY, New York, NY 10016, USA; (A.D.); (F.D.); (Y.X.)
- Department of Chemistry, Hunter College of CUNY, New York, NY 10065, USA; (L.M.); (V.V.)
- Chemistry Ph.D. Program, The Graduate Center of CUNY, New York, NY 10016, USA
| | - Akira Kawamura
- Biochemistry Ph.D. Program, The Graduate Center of CUNY, New York, NY 10016, USA; (A.D.); (F.D.); (Y.X.)
- Department of Chemistry, Hunter College of CUNY, New York, NY 10065, USA; (L.M.); (V.V.)
- Chemistry Ph.D. Program, The Graduate Center of CUNY, New York, NY 10016, USA
- Correspondence: ; Tel.: +1-212-772-5339
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20
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Barreiro-Lage D, Bolognesi P, Chiarinelli J, Richter R, Zettergren H, Stockett MH, Carlini L, Diaz-Tendero S, Avaldi L. "Smart Decomposition" of Cyclic Alanine-Alanine Dipeptide by VUV Radiation: A Seed for the Synthesis of Biologically Relevant Species. J Phys Chem Lett 2021; 12:7379-7386. [PMID: 34324354 DOI: 10.1021/acs.jpclett.1c01788] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A combined experimental and theoretical study shows how the interaction of VUV radiation with cyclo-(alanine-alanine), one of the 2,5-diketopiperazines (DKPs), produces reactive oxazolidinone intermediates. The theoretical simulations reveal that the interaction of these intermediates with other neutral and charged fragments, released in the molecular decomposition, leads either to the reconstruction of the cyclic dipeptide or to the formation of longer linear peptide chains. These results may explain how DKPs could have, on one hand, survived hostile chemical environments and, on the other, provided the seed for amino acid polymerization. Shedding light on the mechanisms of production of such prebiotic building blocks is of paramount importance to understanding the abiotic synthesis of relevant biologically active compounds.
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Affiliation(s)
- Darío Barreiro-Lage
- Departamento de Química, Módulo 13, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Paola Bolognesi
- Institute of Structure of Matter-CNR (ISM-CNR), Area della Ricerca di Roma 1, Via Salaria km 29.300, 00015 Monterotondo, Italy
| | - Jacopo Chiarinelli
- Institute of Structure of Matter-CNR (ISM-CNR), Area della Ricerca di Roma 1, Via Salaria km 29.300, 00015 Monterotondo, Italy
| | - Robert Richter
- Elettra Sincrotrone Trieste, 34149 Basovizza, Trieste, Italy
| | | | - Mark H Stockett
- Department of Physics, Stockholm University, Se-10691 Stockholm, Sweden
| | - Laura Carlini
- Institute of Structure of Matter-CNR (ISM-CNR), Area della Ricerca di Roma 1, Via Salaria km 29.300, 00015 Monterotondo, Italy
| | - Sergio Diaz-Tendero
- Departamento de Química, Módulo 13, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Science (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Lorenzo Avaldi
- Institute of Structure of Matter-CNR (ISM-CNR), Area della Ricerca di Roma 1, Via Salaria km 29.300, 00015 Monterotondo, Italy
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21
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Kouchaksaraee RM, Li F, Nazemi M, Farimani MM, Tasdemir D. Molecular Networking-Guided Isolation of New Etzionin-Type Diketopiperazine Hydroxamates from the Persian Gulf Sponge Cliona celata. Mar Drugs 2021; 19:md19080439. [PMID: 34436278 PMCID: PMC8402168 DOI: 10.3390/md19080439] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 01/09/2023] Open
Abstract
The Persian Gulf is a unique and biologically diverse marine environment dominated by invertebrates. In continuation of our research interest in the chemistry and biological activity of marine sponges from the Persian Gulf, we selected the excavating sponge Cliona celata for detailed metabolome analyses, in vitro bioactivity screening, and chemical isolation studies. A UPLC-MS/MS (MS2) molecular-networking-based dereplication strategy allowed annotation and structural prediction of various diketopiperazines (DKPs) and etzionin-type diketopiperazine hydroxamates (DKPHs) in the crude sponge extract. The molecular-networking-guided isolation approach applied to the crude extract afforded the DKPH etzionin (1) and its two new derivatives, clioetzionin A (2) and clioetzionin B (3). Another new modified DKP (4) was identified by MS/MS analyses but could not be isolated in sufficient quantities to confirm its structure. The chemical characterization of the purified DKPHs 1–3 was performed by a combination of 1D and 2D NMR spectroscopy, HRMS, HRMS/MS, and [α]D analyses. Compounds 1 and 2 exhibited broad antibacterial, antifungal, and anticancer activities, with IC50 values ranging from 19.6 to 159.1 µM. This is the first study investigating the chemical constituents of a C. celata specimen from the Persian Gulf. It is also the first report of full spectroscopic data of etzionin based on extensive spectroscopic analyses.
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Affiliation(s)
- Reza Mohsenian Kouchaksaraee
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Products Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106 Kiel, Germany; (R.M.K.); (F.L.)
| | - Fengjie Li
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Products Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106 Kiel, Germany; (R.M.K.); (F.L.)
| | - Melika Nazemi
- Persian Gulf and Oman Sea Ecological Center, Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization (AREEO), 7916793165 Bandar Abbas, Iran;
| | - Mahdi Moridi Farimani
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Evin, 1983969411 Tehran, Iran;
| | - Deniz Tasdemir
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Products Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106 Kiel, Germany; (R.M.K.); (F.L.)
- Faculty of Mathematics and Natural Sciences, Kiel University, Christian-Albrechts-Platz 4, 24118 Kiel, Germany
- Correspondence: ; Tel.: +49-431-6004430
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22
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Scarel M, Marchesan S. Diketopiperazine Gels: New Horizons from the Self-Assembly of Cyclic Dipeptides. Molecules 2021; 26:3376. [PMID: 34204905 PMCID: PMC8199760 DOI: 10.3390/molecules26113376] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 06/01/2021] [Accepted: 06/01/2021] [Indexed: 02/07/2023] Open
Abstract
Cyclodipeptides (CDPs) or 2,5-diketopiperazines (DKPs) can exert a variety of biological activities and display pronounced resistance against enzymatic hydrolysis as well as a propensity towards self-assembly into gels, relative to the linear-dipeptide counterparts. They have attracted great interest in a variety of fields spanning from functional materials to drug discovery. This concise review will analyze the latest advancements in their synthesis, self-assembly into gels, and their more innovative applications.
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Affiliation(s)
- Marco Scarel
- Chemical and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy;
| | - Silvia Marchesan
- Chemical and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy;
- National Interuniversity Consortium of Materials Science and Technology (INSTM), University of Trieste, 34127 Trieste, Italy
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23
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Ishiyama A, Hokari R, Nonaka K, Chiba T, Miura H, Otoguro K, Iwatsuki M. Diatretol, an α, α'-dioxo-diketopiperazine, is a potent in vitro and in vivo antimalarial. J Antibiot (Tokyo) 2021; 74:266-268. [PMID: 33446930 PMCID: PMC7807217 DOI: 10.1038/s41429-020-00390-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/05/2020] [Accepted: 11/09/2020] [Indexed: 01/29/2023]
Abstract
A fungal metabolite, diatretol, has shown to be a promising antimalarial agent. Diatretol displayed potent in vitro antiparasitic activity against the Plasmodium falciparum K1 strain, with an IC50 value of 378 ng ml-1, as well as in vivo efficacy in a Plasmodium berghei-infected mice model, with ca. 50% inhibition at 30 mg/kg (p.o.).
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Affiliation(s)
- Aki Ishiyama
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, 108-8641, Tokyo, Japan
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, 108-8641, Tokyo, Japan
| | - Rei Hokari
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, 108-8641, Tokyo, Japan
| | - Kenichi Nonaka
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, 108-8641, Tokyo, Japan
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, 108-8641, Tokyo, Japan
| | - Takuya Chiba
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, 108-8641, Tokyo, Japan
| | - Hiromi Miura
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, 108-8641, Tokyo, Japan
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, 108-8641, Tokyo, Japan
| | - Kazuhiko Otoguro
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, 108-8641, Tokyo, Japan
| | - Masato Iwatsuki
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, 108-8641, Tokyo, Japan.
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, 108-8641, Tokyo, Japan.
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24
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Bavlovič Piskáčková H, Jansová H, Kubeš J, Karabanovich G, Váňová N, Kollárová-Brázdová P, Melnikova I, Jirkovská A, Lenčová-Popelová O, Chládek J, Roh J, Šimůnek T, Štěrba M, Štěrbová-Kovaříková P. Development of water-soluble prodrugs of the bisdioxopiperazine topoisomerase IIβ inhibitor ICRF-193 as potential cardioprotective agents against anthracycline cardiotoxicity. Sci Rep 2021; 11:4456. [PMID: 33627707 PMCID: PMC7904827 DOI: 10.1038/s41598-021-83688-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 01/01/2021] [Indexed: 02/06/2023] Open
Abstract
The bisdioxopiperazine topoisomerase IIβ inhibitor ICRF-193 has been previously identified as a more potent analog of dexrazoxane (ICRF-187), a drug used in clinical practice against anthracycline cardiotoxicity. However, the poor aqueous solubility of ICRF-193 has precluded its further in vivo development as a cardioprotective agent. To overcome this issue, water-soluble prodrugs of ICRF-193 were prepared, their abilities to release ICRF-193 were investigated using a novel UHPLC-MS/MS assay, and their cytoprotective effects against anthracycline cardiotoxicity were tested in vitro in neonatal ventricular cardiomyocytes (NVCMs). Based on the obtained results, the bis(2-aminoacetoxymethyl)-type prodrug GK-667 was selected for advanced investigations due to its straightforward synthesis, sufficient solubility, low cytotoxicity and favorable ICRF-193 release. Upon administration of GK-667 to NVCMs, the released ICRF-193 penetrated well into the cells, reached sufficient intracellular concentrations and provided effective cytoprotection against anthracycline toxicity. The pharmacokinetics of the prodrug, ICRF-193 and its rings-opened metabolite was estimated in vivo after administration of GK-667 to rabbits. The plasma concentrations of ICRF-193 reached were found to be adequate to achieve cardioprotective effects in vivo. Hence, GK-667 was demonstrated to be a pharmaceutically acceptable prodrug of ICRF-193 and a promising drug candidate for further evaluation as a potential cardioprotectant against chronic anthracycline toxicity.
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Affiliation(s)
- Hana Bavlovič Piskáčková
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Hana Jansová
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Jan Kubeš
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Galina Karabanovich
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Nela Váňová
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Petra Kollárová-Brázdová
- Faculty of Medicine in Hradec Králové, Charles University, Šimkova 870, 500 03, Hradec Králové, Czech Republic
| | - Iuliia Melnikova
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Anna Jirkovská
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Olga Lenčová-Popelová
- Faculty of Medicine in Hradec Králové, Charles University, Šimkova 870, 500 03, Hradec Králové, Czech Republic
| | - Jaroslav Chládek
- Faculty of Medicine in Hradec Králové, Charles University, Šimkova 870, 500 03, Hradec Králové, Czech Republic
| | - Jaroslav Roh
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Tomáš Šimůnek
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Martin Štěrba
- Faculty of Medicine in Hradec Králové, Charles University, Šimkova 870, 500 03, Hradec Králové, Czech Republic
| | - Petra Štěrbová-Kovaříková
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic.
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25
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Jiang G, Zhang P, Ratnayake R, Yang G, Zhang Y, Zuo R, Powell M, Huguet-Tapia JC, Abboud KA, Dang LH, Teplitski M, Paul V, Xiao R, Ahammad KH, Zaman U, Hu Z, Cao S, Luesch H, Ding Y. Fungal Epithiodiketopiperazines Carrying α,β-Polysulfide Bridges from Penicillium steckii YE, and Their Chemical Interconversion. Chembiochem 2021; 22:416-422. [PMID: 32816319 PMCID: PMC7895331 DOI: 10.1002/cbic.202000403] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/19/2020] [Indexed: 11/09/2022]
Abstract
Some fungal epithiodiketopiperazine alkaloids display α,β-polysulfide bridges alongside diverse structural variations. However, the logic of their chemical diversity has rarely been explored. Here, we report the identification of three new (2, 3, 8) and five known (1, 4-7) epithiodiketopiperazines of this subtype from a marine-derived Penicillium sp. The structure elucidation was supported by multiple spectroscopic analyses. Importantly, we observed multiple nonenzymatic interconversions of these analogues in aqueous solutions and organic solvents. Furthermore, the same biosynthetic origin of these compounds was supported by one mined gene cluster. The dominant analogue (1) demonstrated selective cytotoxicity to androgen-sensitive prostate cancer cells and HIF-depleted colorectal cells and mild antiaging activities, linking the bioactivity to oxidative stress. These results provide crucial insight into the formation of fungal epithiodiketopiperazines through chemical interconversions.
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Affiliation(s)
- Guangde Jiang
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, 32610, USA
| | - Peilan Zhang
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, 32610, USA
| | - Ranjala Ratnayake
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, 32610, USA
| | - Guang Yang
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, 32610, USA
| | - Yi Zhang
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, 32610, USA
| | - Ran Zuo
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, 32610, USA
| | - Magan Powell
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, 32610, USA
| | - José C Huguet-Tapia
- Department of Plant Pathology, University of Florida, Gainesville, 32611, FL, USA
| | - Khalil A Abboud
- Department of Chemistry, University of Florida, Gainesville, 32611, FL, USA
| | - Long H Dang
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, 32610, USA
- Department of Medicine, University of Florida, Gainesville, 32610, FL, USA
| | - Max Teplitski
- Soil and Water Science Department, University of Florida, Gainesville, 32610, FL, USA
| | - Valerie Paul
- Smithsonian Marine Station at Ft., Pierce, 701 Seaway Drive, Ft. Pierce, 34949, FL, USA
| | - Rui Xiao
- Departments of Aging and Geriatric Research, Pharmacology and Therapeutics, Center for Smell and Taste, University of Florida, Gainesville, 32610, FL, USA
| | - K H Ahammad
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, 32610, USA
| | - Uz Zaman
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, Hawaii, 96720, USA
| | - Zhenquan Hu
- Warshel Institute for Computational Biology, The Chinese University of Hong Kong,Shenzhen, Guangdong, 518172, P. R. China
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Shugeng Cao
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, Hawaii, 96720, USA
| | - Hendrik Luesch
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, 32610, USA
| | - Yousong Ding
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, 32610, USA
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26
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Cautereels J, Giribaldi J, Enjalbal C, Blockhuys F. Quantum chemical mass spectrometry: Ab initio study of b 2 -ion formation mechanisms for the singly protonated Gln-His-Ser tripeptide. Rapid Commun Mass Spectrom 2020; 34:e8778. [PMID: 32144813 DOI: 10.1002/rcm.8778] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 02/28/2020] [Accepted: 03/05/2020] [Indexed: 06/10/2023]
Abstract
RATIONALE Both amide bond protonation triggering peptide fragmentations and the controversial b2 -ion structures have been subjects of intense research. The involvement of histidine (H), with its imidazole side chain that induces specific dissociation patterns involving inter-side-chain (ISC) interactions, in b2 -ion formation was investigated, focusing on the QHS model tripeptide. METHODS To identify the effect of histidine on fragmentations issued from ISC interactions, QHS was selected for a comprehensive analysis of the pathways leading to the three possible b2 -ion structures, using quantum chemical calculations performed at the DFT/B3LYP/6-311+G* level of theory. Electrospray ionization ion trap mass spectrometry allowed the recording of MS2 and MS3 tandem mass spectra, whereas the Quantum Chemical Mass Spectrometry for Materials Science (QCMS2 ) method was used to predict fragmentation patterns. RESULTS Whereas it is very difficult to differentiate among protonated oxazolone, diketopiperazine, or lactam b2 -ions using MS2 and MS3 mass spectra, the calculations indicated that the QH b2 -ion (detected at m/z 266) is probably a mixture of the lactam and oxazolone structures formed after amide nitrogen protonation, making the formation of diketopiperazine less likely as it requires an additional step for its formation. CONCLUSIONS In contrast to glycine-histidine-containing b2 -ions, known to be issued from the backbone-imidazole cyclization, we found that interactions between the side chains were not obvious to perceive, neither from a thermodynamics nor from a fragmentation perspective, emphasizing the importance of the whole sequence on the dissociation behavior usually demonstrated from simple glycine-containing tripeptides.
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Affiliation(s)
- Julie Cautereels
- Department of Chemistry, University of Antwerp, Antwerp, Belgium
| | | | | | - Frank Blockhuys
- Department of Chemistry, University of Antwerp, Antwerp, Belgium
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Ding Y, Zhu X, Hao L, Zhao M, Hua Q, An F. Bioactive Indolyl Diketopiperazines from the Marine Derived Endophytic Aspergillus versicolor DY180635. Mar Drugs 2020; 18:E338. [PMID: 32605149 PMCID: PMC7401283 DOI: 10.3390/md18070338] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/24/2020] [Accepted: 06/25/2020] [Indexed: 01/25/2023] Open
Abstract
Four new indolyl diketopiperazines, aspamides A-E (1-4) and two new diketopiperazines, aspamides F-G (5-6), along with 11 known diketopiperazines and intermediates were isolated from the solid culture of Aspergillus versicolor, which is an endophyte with the sea crab (Chiromantes haematocheir). Further chiral high-performance liquid chromatography resolution gave enantiomers (+)- and (-)-4, respectively. The structures and absolute configurations of compounds 1-6 were determined by the comprehensive analyses of nuclear magnetic resonance (NMR), high-resolution mass spectrometry (HR-MS), and electronic circular dichroism (ECD) calculation. All isolated compounds were selected for the virtual screening on the coronavirus 3-chymoretpsin-like protease (Mpro) of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), and the docking scores of compounds 1-2, 5, 6, 8 and 17 were top among all screened molecules, may be helpful in fighting with Corona Virus Disease-19 (COVID-19) after further studies.
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Affiliation(s)
| | | | | | | | | | - Faliang An
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, China; (Y.D.); (X.Z.); (L.H.); (M.Z.); (Q.H.)
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28
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Xie J, Xu W, Song H, Liu Y, Zhang J, Wang Q. Synthesis and Antiviral/Fungicidal/Insecticidal Activities Study of Novel Chiral Indole Diketopiperazine Derivatives Containing Acylhydrazone Moiety. J Agric Food Chem 2020; 68:5555-5571. [PMID: 32343564 DOI: 10.1021/acs.jafc.0c00875] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
On the basis of the mechanism of acylhydrazone compounds inhibiting the assembly of TMV CP and the unique structural characteristics of diketopiperazine ring, a series of optically pure indole diketopiperazine acylhydrazone were designed and synthesized. In order to systematically study the effect of the spatial configuration of the compounds on the antiviral activity, four compounds with different spatial configurations at C6 and C12a were also prepared. The bioassay results indicated that most of these new compounds displayed moderate to good antiviral activity, among which compounds 23, 25, 27, 28, 31, and 5d showed a significantly higher activity than that of commercial ribavirin. An in-depth structure-activity relationship investigation showed that the spatial conformation was one of the most important factors in adjusting antiviral activity; the research results provided information about the possible optimum configuration for interaction of this molecular with its target protein. At the same time, these new compounds also exhibited broad-spectrum fungicidal activities against 14 kinds of phytopathogenic fungi. What's more, some of these compounds exhibited good insecticidal activity to Plutella xylostella and Culex pipiens pallens.
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Affiliation(s)
- Jialin Xie
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, People's Republic of China
| | - Wentao Xu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, People's Republic of China
| | - Hongjian Song
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, People's Republic of China
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, People's Republic of China
| | - Jingjing Zhang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, People's Republic of China
- Tianjin Agricultural University, Tianjin 300384, People's Republic of China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, People's Republic of China
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29
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Abstract
We report NMR- and MS-based structural characterizations of siderophores and related compounds from Beauveria bassiana (Balsamo-Crivelli) Vuillemin, including ten new chemical entities (2-4, 6-9, 11-12, and 15) and five known compounds, (1, 5, 10, 13, and 14). The siderophore mixture from ARSEF strain #2680 included two compounds in which N5-mevalonyl-N5-hydroxyornithine replaces both (2) or one (3) of the N5-anhydromevalonyl-N5-hydroxyornithine units of dimerumic acid (1). Mevalonolactone (14) was present as a degradation product of 2 and 3. ARSEF #2860 also produced compounds that have mannopyranose (5, 6) or 4-O-methyl-mannopyranose units (4, 7), two compounds (8, 9) that can be rationalized as 4-O-methyl-mannopyranosyl analogues of the esterifying acid moieties of metachelins A and B, respectively, and two probable decomposition products of 1, a nitro compound (11) and a formate (12). Beauverichelin A (15), a coprogen-type siderophore that represents the di-4-O-methyl-mannopyranosyl analogue of metachelin A, was detected in crude extracts of ARSEF #2860, but only in trace amounts. ARSEF strains #252 and #1955 yielded beauverichelin A in quantities that were sufficient for NMR analysis. Only the di- (1-7) and trihydroxamate (15) siderophores showed iron-binding activity in the CAS assay and, when ferrated, showed strong ESIMS signals consistent with 1:1 ligand/iron complexes.
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Affiliation(s)
- Stuart B Krasnoff
- USDA-ARS , Robert W. Holley Center for Agriculture & Health , Ithaca , New York 14853 , United States
| | - Kevin J Howe
- USDA-ARS , Robert W. Holley Center for Agriculture & Health , Ithaca , New York 14853 , United States
| | - Michelle L Heck
- USDA-ARS , Robert W. Holley Center for Agriculture & Health , Ithaca , New York 14853 , United States
- Department of Plant Pathology and Plant-Microbe Biology , Cornell University , Ithaca , New York 14853 , United States
- Boyce Thompson Institute , Ithaca , New York 14853 , United States
| | - Bruno G G Donzelli
- USDA-ARS , Robert W. Holley Center for Agriculture & Health , Ithaca , New York 14853 , United States
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30
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Deigin V, Ksenofontova O, Yatskin O, Goryacheva A, Ignatova A, Feofanov A, Ivanov V. Novel platform for the preparation of synthetic orally active peptidomimetics with hemoregulating activity. II. Hemosuppressor activity of 2,5-diketopiperazine-based cyclopeptides. Int Immunopharmacol 2020; 81:106185. [PMID: 32058926 DOI: 10.1016/j.intimp.2020.106185] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 12/30/2019] [Accepted: 01/01/2020] [Indexed: 12/17/2022]
Abstract
The novel chemical platform formed by the branched piperazine-2,5-dione peptide derivatives (2,5-diketopiperazines) for creating non-invasive biologically active peptidomimetics has been developed. A successful application of this approach to orally available hemostimulatory peptidomimetics was demonstrated for all-L cyclopeptide from the Glu-Trp-peptide family. In the 1980s, we have separated and characterized a number of dipeptides from the thymus homogenate. The most active peptide Glu-Trp has been studied and developed into the immunostimulating drug Thymogen. The inversion of the amino acid optical form endows the dipeptides with suppressor properties: D-Glu-D-Trp-OH and D-Glu-(D-Trp)-OH, inhibit proliferation of hemopoietic progenitors in the intact bone marrow. Based on the peptide D-Glu-(D-Trp)-OH, the new immunosuppressive drug Thymodepressin has been prepared. In this work, we applied the platform mentioned above to the design and synthesis of orally active hemosuppressive Thymodepressin® analogs. The novel data for the hemosuppressor activity of the dipeptide D-Glu(D-Trp-OH)-OH and its cyclopeptide analogs are discussed. A new example is presented of a rare phenomenon when enantiomeric molecules demonstrate reciprocal (i.e., opposite) biological activities.
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Affiliation(s)
- Vladislav Deigin
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, Moscow 117997, Russia.
| | - Olga Ksenofontova
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, Moscow 117997, Russia
| | - Oleg Yatskin
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, Moscow 117997, Russia
| | - Alexandra Goryacheva
- Tsyb Medical Radiological Research Center Ministry of Health of Russia, 249030, Kaluga Region, Obninsk, Russia
| | - Anastasia Ignatova
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, Moscow 117997, Russia; Biological Faculty, Lomonosov Moscow State University, Vorobyevi Gori 1, Moscow 119992, Russia
| | - Alexey Feofanov
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, Moscow 117997, Russia; Biological Faculty, Lomonosov Moscow State University, Vorobyevi Gori 1, Moscow 119992, Russia
| | - Vadim Ivanov
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, Moscow 117997, Russia
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31
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Berry D, Mace W, Grage K, Wesche F, Gore S, Schardl CL, Young CA, Dijkwel PP, Leuchtmann A, Bode HB, Scott B. Efficient nonenzymatic cyclization and domain shuffling drive pyrrolopyrazine diversity from truncated variants of a fungal NRPS. Proc Natl Acad Sci U S A 2019; 116:25614-25623. [PMID: 31801877 PMCID: PMC6926027 DOI: 10.1073/pnas.1913080116] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Nonribosomal peptide synthetases (NRPSs) generate the core peptide scaffolds of many natural products. These include small cyclic dipeptides such as the insect feeding deterrent peramine, which is a pyrrolopyrazine (PPZ) produced by grass-endophytic Epichloë fungi. Biosynthesis of peramine is catalyzed by the 2-module NRPS, PpzA-1, which has a C-terminal reductase (R) domain that is required for reductive release and cyclization of the NRPS-tethered dipeptidyl-thioester intermediate. However, some PpzA variants lack this R domain due to insertion of a transposable element into the 3' end of ppzA We demonstrate here that these truncated PpzA variants utilize nonenzymatic cyclization of the dipeptidyl thioester to a 2,5-diketopiperazine (DKP) to synthesize a range of novel PPZ products. Truncation of the R domain is sufficient to subfunctionalize PpzA-1 into a dedicated DKP synthetase, exemplified by the truncated variant, PpzA-2, which has also evolved altered substrate specificity and reduced N-methyltransferase activity relative to PpzA-1. Further allelic diversity has been generated by recombination-mediated domain shuffling between ppzA-1 and ppzA-2, resulting in the ppzA-3 and ppzA-4 alleles, each of which encodes synthesis of a unique PPZ metabolite. This research establishes that efficient NRPS-catalyzed DKP biosynthesis can occur in vivo through nonenzymatic dipeptidyl cyclization and presents a remarkably clean example of NRPS evolution through recombinant exchange of functionally divergent domains. This work highlights that allelic variants of a single NRPS can result in a surprising level of secondary metabolite diversity comparable to that observed for some gene clusters.
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Affiliation(s)
- Daniel Berry
- School of Fundamental Sciences, Massey University, Palmerston North 4442, New Zealand
- Bioprotection Research Centre, Massey University, Palmerston North 4442, New Zealand
| | - Wade Mace
- Grasslands Research Centre, AgResearch Ltd., Palmerston North 4442, New Zealand
| | - Katrin Grage
- School of Fundamental Sciences, Massey University, Palmerston North 4442, New Zealand
| | - Frank Wesche
- Fachbereich Biowissenschaften, Molekulare Biotechnologie, Goethe Universität Frankfurt, 60438 Frankfurt am Main, Germany
| | - Sagar Gore
- Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, 07745 Jena, Germany
| | | | | | - Paul P Dijkwel
- School of Fundamental Sciences, Massey University, Palmerston North 4442, New Zealand
- Bioprotection Research Centre, Massey University, Palmerston North 4442, New Zealand
| | - Adrian Leuchtmann
- Institute of Integrative Biology, ETH Zürich, CH-8092 Zürich, Switzerland
| | - Helge B Bode
- Fachbereich Biowissenschaften, Molekulare Biotechnologie, Goethe Universität Frankfurt, 60438 Frankfurt am Main, Germany;
- Buchmann Institute for Molecular Life Sciences, Goethe-Universität, 60438 Frankfurt am Main, Germany
- Landes-Offensive zur Entwicklung Wissenschaftlich-Ökonomischer Exzellenz (LOEWE) Centre for Translational Biodiversity Genomics, 60325 Frankfurt am Main, Germany
| | - Barry Scott
- School of Fundamental Sciences, Massey University, Palmerston North 4442, New Zealand;
- Bioprotection Research Centre, Massey University, Palmerston North 4442, New Zealand
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32
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Gao S, Liu H, de Crécy-Lagard V, Zhu W, Richards NGJ, Naismith JH. PMP-diketopiperazine adducts form at the active site of a PLP dependent enzyme involved in formycin biosynthesis. Chem Commun (Camb) 2019; 55:14502-14505. [PMID: 31730149 PMCID: PMC6927412 DOI: 10.1039/c9cc06975e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 10/16/2019] [Indexed: 01/04/2023]
Abstract
ForI is a PLP-dependent enzyme from the biosynthetic pathway of the C-nucleoside antibiotic formycin. Cycloserine is thought to inhibit PLP-dependent enzymes by irreversibly forming a PMP-isoxazole. We now report that ForI forms novel PMP-diketopiperazine derivatives following incubation with both d and l cycloserine. This unexpected result suggests chemical diversity in the chemistry of cycloserine inhibition.
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Affiliation(s)
- Sisi Gao
- Research Complex at Harwell
,
Didcot
, OX11 0FA
, UK
- BSRC
, University of St Andrews
,
St Andrews
, KY16 9ST
, UK
| | - Huanting Liu
- BSRC
, University of St Andrews
,
St Andrews
, KY16 9ST
, UK
| | | | - Wen Zhu
- Department of Chemistry and California
, Institute for Quantitative Biosciences
, University of California
,
Berkeley
, CA 94720
, USA
| | - Nigel G. J. Richards
- School of Chemistry
, Cardiff University
, Park Place
,
Cardiff
, CF10 3AT
, UK
- Foundation for Applied Molecular Evolution
,
Alachua
, FL 32415
, USA
| | - James H. Naismith
- Division of Structural Biology
, University of Oxford
,
Oxford
, OX3 7BN
, UK
.
- The Rosalind Franklin Institute
,
Didcot
, OX11 0FA
, UK
- State Key Laboratory of Biotherapy
, University of Sichuan
,
China
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33
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Gomes NGM, Pereira RB, Andrade PB, Valentão P. Double the Chemistry, Double the Fun: Structural Diversity and Biological Activity of Marine-Derived Diketopiperazine Dimers. Mar Drugs 2019; 17:md17100551. [PMID: 31569621 PMCID: PMC6835637 DOI: 10.3390/md17100551] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/22/2019] [Accepted: 09/25/2019] [Indexed: 12/14/2022] Open
Abstract
While several marine natural products bearing the 2,5-diketopiperazine ring have been reported to date, the unique chemistry of dimeric frameworks appears to remain neglected. Frequently reported from marine-derived strains of fungi, many naturally occurring diketopiperazine dimers have been shown to display a wide spectrum of pharmacological properties, particularly within the field of cancer and antimicrobial therapy. While their structures illustrate the unmatched power of marine biosynthetic machinery, often exhibiting unsymmetrical connections with rare linkage frameworks, enhanced binding ability to a variety of pharmacologically relevant receptors has been also witnessed. The existence of a bifunctional linker to anchor two substrates, resulting in a higher concentration of pharmacophores in proximity to recognition sites of several receptors involved in human diseases, portrays this group of metabolites as privileged lead structures for advanced pre-clinical and clinical studies. Despite the structural novelty of various marine diketopiperazine dimers and their relevant bioactive properties in several models of disease, to our knowledge, this attractive subclass of compounds is reviewed here for the first time.
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Affiliation(s)
- Nelson G M Gomes
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, nº 228, Porto 4050-313, Portugal.
| | - Renato B Pereira
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, nº 228, Porto 4050-313, Portugal.
| | - Paula B Andrade
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, nº 228, Porto 4050-313, Portugal.
| | - Patrícia Valentão
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, nº 228, Porto 4050-313, Portugal.
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He W, Xu Y, Fu P, Zuo M, Liu W, Jiang Y, Wang L, Zhu W. Cytotoxic Indolyl Diketopiperazines from the Aspergillus sp. GZWMJZ-258, Endophytic with the Medicinal and Edible Plant Garcinia multiflora. J Agric Food Chem 2019; 67:10660-10666. [PMID: 31479263 DOI: 10.1021/acs.jafc.9b04254] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Two new indolyl diketopiperazines, gartryprostatins A and B (1 and 2), with an unusual 2,3-furan-fused pyrano[2,3-g]pyrrolo[1″,2″:4',5']pyrazino[1',2':1,5]pyrrolo[2,3-b]indole nucleus, along with a new naturally occurring compound (gartryprostatin C, 3) were isolated from the solid culture of Aspergillus sp. GZWMJZ-258, an endophyte from Garcinia multiflora (Guttiferae). The structures of compounds 1-3 were determined by nuclear magnetic resonance, mass spectrometry, Marfey's analysis of amino acids, and chemical calculation. Compounds 1-3 displayed selective inhibition on human FLT3-ITD mutant AML cell line, MV4-11, with IC50 values of 7.2, 10.0, and 0.22 μM, respectively.
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Affiliation(s)
- Wenwen He
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang , Guizhou 550014 , China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province , Chinese Academy of Sciences , Guiyang , Guizhou 550014 , China
- School of Pharmaceutical Sciences , Guizhou Medical University , Guiyang , Guizhou 550025 , China
| | - Yanchao Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang , Guizhou 550014 , China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province , Chinese Academy of Sciences , Guiyang , Guizhou 550014 , China
- School of Pharmaceutical Sciences , Guizhou Medical University , Guiyang , Guizhou 550025 , China
| | - Peng Fu
- Laboratory for Marine Drugs and Bioproducts , Pilot National Laboratory for Marine Science and Technology (Qingdao) , Qingdao , Shandong 266003 , China
| | - Mingxing Zuo
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang , Guizhou 550014 , China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province , Chinese Academy of Sciences , Guiyang , Guizhou 550014 , China
- School of Pharmaceutical Sciences , Guizhou Medical University , Guiyang , Guizhou 550025 , China
| | - Wen Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang , Guizhou 550014 , China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province , Chinese Academy of Sciences , Guiyang , Guizhou 550014 , China
| | - Yangming Jiang
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang , Guizhou 550014 , China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province , Chinese Academy of Sciences , Guiyang , Guizhou 550014 , China
| | - Liping Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang , Guizhou 550014 , China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province , Chinese Academy of Sciences , Guiyang , Guizhou 550014 , China
- School of Pharmaceutical Sciences , Guizhou Medical University , Guiyang , Guizhou 550025 , China
| | - Weiming Zhu
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang , Guizhou 550014 , China
- Laboratory for Marine Drugs and Bioproducts , Pilot National Laboratory for Marine Science and Technology (Qingdao) , Qingdao , Shandong 266003 , China
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35
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Liang X, Zhang X, Lu X, Zheng Z, Ma X, Qi S. Diketopiperazine-Type Alkaloids from a Deep-Sea-Derived Aspergillus puniceus Fungus and Their Effects on Liver X Receptor α. J Nat Prod 2019; 82:1558-1564. [PMID: 31095389 DOI: 10.1021/acs.jnatprod.9b00055] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Eight new diketopiperazine-type alkaloids including four oxepin-containing diketopiperazine-type alkaloids, oxepinamides H-K (1-4), and four 4-quinazolinone alkaloids, puniceloids A-D (5-8), together with two known analogues (9 and 10), were isolated from the culture broth extracts of the deep-sea-derived fungus Aspergillus puniceus SCSIO z021. Their structures were elucidated by spectroscopic analyses, and their absolute configurations were determined by Marfey's method along with comparison of their specific rotations and ECD spectra. The absolute configurations of 4 and 5 were further confirmed by a single-crystal X-ray diffraction analysis. Compounds 1-8 showed significant transcriptional activation of liver X receptor α with EC50 values of 1.7-50 μM, and 7 and 8 were the most potent agonists.
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Affiliation(s)
- Xiao Liang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, Institution of South China Sea Ecology and Environmental Engineering , South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road , Guangzhou , Guangdong 510301 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Xuelian Zhang
- New Drug Research & Development Co., Ltd , North China Pharmaceutical Group Corporation , Shijiazhuang , Hebei 050015 , People's Republic of China
| | - Xinhua Lu
- New Drug Research & Development Co., Ltd , North China Pharmaceutical Group Corporation , Shijiazhuang , Hebei 050015 , People's Republic of China
| | - Zhihui Zheng
- New Drug Research & Development Co., Ltd , North China Pharmaceutical Group Corporation , Shijiazhuang , Hebei 050015 , People's Republic of China
| | - Xuan Ma
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, Institution of South China Sea Ecology and Environmental Engineering , South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road , Guangzhou , Guangdong 510301 , People's Republic of China
| | - Shuhua Qi
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, Institution of South China Sea Ecology and Environmental Engineering , South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road , Guangzhou , Guangdong 510301 , People's Republic of China
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36
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Jiang G, Zhang Y, Powell MM, Hylton SM, Hiller NW, Loria R, Ding Y. A Promiscuous Cytochrome P450 Hydroxylates Aliphatic and Aromatic C-H Bonds of Aromatic 2,5-Diketopiperazines. Chembiochem 2019; 20:1068-1077. [PMID: 30604585 PMCID: PMC8162728 DOI: 10.1002/cbic.201800736] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Indexed: 11/06/2022]
Abstract
Cytochrome P450 enzymes generally functionalize inert C-H bonds, and thus, they are important biocatalysts for chemical synthesis. However, enzymes that catalyze both aliphatic and aromatic hydroxylation in the same biotransformation process have rarely been reported. A recent biochemical study demonstrated the P450 TxtC for the biosynthesis of herbicidal thaxtomins as the first example of this unique type of enzyme. Herein, the detailed characterization of substrate requirements and biocatalytic applications of TxtC are reported. The results reveal the importance of N-methylation of the thaxtomin diketopiperazine (DKP) core on enzyme reactions and demonstrate the tolerance of the enzyme to modifications on the indole and phenyl moieties of its substrates. Furthermore, hydroxylated, methylated, aromatic DKPs are synthesized through a biocatalytic route comprising TxtC and the promiscuous N-methyltransferase Amir_4628; thus providing a basis for the broad application of this unique P450.
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Affiliation(s)
- Guangde Jiang
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, 32610, USA
| | - Yi Zhang
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, 32610, USA
| | - Magan M Powell
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, 32610, USA
| | - Sarah M Hylton
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, 32610, USA
| | - Nicholas W Hiller
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, 32610, USA
| | - Rosemary Loria
- Department of Plant Pathology, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL, 32611, USA
| | - Yousong Ding
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, 32610, USA
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Barakat F, Vansteelandt M, Triastuti A, Jargeat P, Jacquemin D, Graton J, Mejia K, Cabanillas B, Vendier L, Stigliani JL, Haddad M, Fabre N. Thiodiketopiperazines with two spirocyclic centers extracted from Botryosphaeria mamane, an endophytic fungus isolated from Bixa orellana L. Phytochemistry 2019; 158:142-148. [PMID: 30576967 DOI: 10.1016/j.phytochem.2018.11.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 11/08/2018] [Accepted: 11/09/2018] [Indexed: 06/09/2023]
Abstract
Three thiodiketopiperazines, botryosulfuranols A-C (1-3) were isolated from the endophytic fungus Botryosphaeria mamane. The three compounds present sulfur atoms on α- and β-positions of phenylalanine derived residues and unprecedented two spirocyclic centers at C-4 and C-2'. Their planar structures were determined by spectroscopic analysis and absolute configurations were achieved by X-ray diffraction analysis and ECD and NMR chemical shifts calculations. Botryosulfuranol A (1) was the most cytotoxic compound against four cancer cell lines (HT-29, HepG2, Caco-2, HeLa) and two healthy cell lines (IEC6, Vero) highlighting the importance of an electrophilic center for cell growth inhibition.
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Affiliation(s)
- Fatima Barakat
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, France
| | | | - Asih Triastuti
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, France
| | - Patricia Jargeat
- Laboratoire Evolution et Diversité Biologique UMR 5174, Université de Toulouse, CNRS, IRD, UPS, France
| | - Denis Jacquemin
- Laboratoire CEISAM, UMR CNRS n° 6230, University of Nantes, 2, rue de la Houssinière, 44322 Nantes, Cedex 2, France
| | - Jérôme Graton
- Laboratoire CEISAM, UMR CNRS n° 6230, University of Nantes, 2, rue de la Houssinière, 44322 Nantes, Cedex 2, France
| | - Kember Mejia
- Instituto de Investigaciones de la Amazonía Peruana, Avenida Abelardo Quiñonez Km. 4.5, Iquitos, Peru
| | - Billy Cabanillas
- Instituto de Investigaciones de la Amazonía Peruana, Avenida Abelardo Quiñonez Km. 4.5, Iquitos, Peru
| | - Laure Vendier
- Laboratoire de Chimie de Coordination du CNRS, Centre National de la Recherche Scientifique, 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France
| | - Jean-Luc Stigliani
- Laboratoire de Chimie de Coordination du CNRS, Centre National de la Recherche Scientifique, 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France
| | - Mohamed Haddad
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, France
| | - Nicolas Fabre
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, France.
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38
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Gu BB, Gui YH, Liu L, Su ZY, Jiao WH, Li L, Sun F, Wang SP, Yang F, Lin HW. A new asymmetric diketopiperazine dimer from the sponge-associated fungus Aspergillus versicolor 16F-11. Magn Reson Chem 2019; 57:49-54. [PMID: 29981526 DOI: 10.1002/mrc.4780] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 05/27/2018] [Accepted: 06/28/2018] [Indexed: 06/08/2023]
Affiliation(s)
- Bin-Bin Gu
- Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yu-Han Gui
- Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Li Liu
- Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhi-You Su
- Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Wei-Hua Jiao
- Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lei Li
- Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Fan Sun
- Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Shu-Ping Wang
- Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Fan Yang
- Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hou-Wen Lin
- Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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39
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Mukhopadhyay D, Gupta C, Theint T, Jaroniec CP. Peptide bond conformation in peptides and proteins probed by dipolar coupling-chemical shift tensor correlation solid-state NMR. J Magn Reson 2018; 297:152-160. [PMID: 30396157 PMCID: PMC6289736 DOI: 10.1016/j.jmr.2018.10.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 10/25/2018] [Accepted: 10/26/2018] [Indexed: 05/30/2023]
Abstract
Multidimensional magic-angle spinning solid-state NMR experiments are described that permit cis and trans peptide bonds in uniformly 13C,15N-labeled peptides and proteins to be unambiguously distinguished in residue-specific manner by determining the relative orientations of the amide 13C' CSA and 1H-15N dipolar coupling tensors. The experiments are demonstrated for model peptides glycylglycine and 2,5-diketopiperazine containing trans and cis peptide bonds, respectively. Subsequently, the measurements are extended to two representative proteins that contain exclusively trans peptide bonds, microcrystalline B3 immunoglobulin domain of protein G and Y145Stop human prion protein amyloid fibrils, to illustrate their applicability to a wide range of protein systems.
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Affiliation(s)
- Dwaipayan Mukhopadhyay
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, United States
| | - Chitrak Gupta
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, United States
| | - Theint Theint
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, United States
| | - Christopher P Jaroniec
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, United States.
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40
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Jiang CS, Zhou ZF, Yang XH, Lan LF, Gu YC, Ye BP, Guo YW. Antibacterial sorbicillin and diketopiperazines from the endogenous fungus Penicillium sp. GD6 associated Chinese mangrove Bruguiera gymnorrhiza. Chin J Nat Med 2018; 16:358-365. [PMID: 29860997 DOI: 10.1016/s1875-5364(18)30068-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Indexed: 02/06/2023]
Abstract
One new sorbicillin derivative, 2-deoxy-sohirnone C (1), one new diketopiperazine alkaloid, 5S-hydroxynorvaline-S-Ile (2), and two naturally occurring diketopiperazines, 3S-hydroxylcyclo(S-Pro-S-Phe) (3) and cyclo(S-Phe-S-Gln) (4), together with three known compounds were isolated from the Chinese mangrove endophytic fungus Penicillium sp. GD6. Their structures were determined on the basis of extensive spectroscopic analyses and by comparison with literature data. The absolute configuration of 3-hydroxyl moiety in 3 was determined by Mosher's method, while the absolute stereochemistry of 2 and 4 was established by comparison with the CD spectra of natural and synthesized diketopiperazines. Compound 1 showed moderate antibacterial activity against Methicillin-resistant Staphylococcus aureus with a MIC value of 80 μg·mL-1.
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Affiliation(s)
- Cheng-Shi Jiang
- China State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; School of Biological Science and Technology, University of Jinan, Jinan 250022, China
| | - Zhen-Fang Zhou
- China State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Xiao-Hong Yang
- School of Life Science & Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Le-Fu Lan
- China State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yu-Cheng Gu
- Syngenta Jealott's Hill International Research Centre, Berkshire RG42 6EY, United Kingdom
| | - Bo-Ping Ye
- School of Life Science & Technology, China Pharmaceutical University, Nanjing 210009, China.
| | - Yue-Wei Guo
- China State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
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41
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Buedenbender L, Robertson LP, Lucantoni L, Avery VM, Kurtböke Dİ, Carroll AR. HSQC-TOCSY Fingerprinting-Directed Discovery of Antiplasmodial Polyketides from the Marine Ascidian-Derived Streptomyces sp. (USC-16018). Mar Drugs 2018; 16:md16060189. [PMID: 29849004 PMCID: PMC6025042 DOI: 10.3390/md16060189] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 05/18/2018] [Accepted: 05/22/2018] [Indexed: 12/17/2022] Open
Abstract
Chemical investigations on the fermentation extract obtained from an ascidian-derived Streptomyces sp. (USC-16018) yielded a new ansamycin polyketide, herbimycin G (1), as well as a known macrocyclic polyketide, elaiophylin (2), and four known diketopiperazines (3–6). The structures of the compounds were elucidated based on 1D/2D NMR and MS data. The absolute configuration of 1 was established by comparison of experimental and predicted electronic circular dichroism (ECD) data. Antiplasmodial activities were tested for the natural products against chloroquine sensitive (3D7) and chloroquine resistant (Dd2) Plasmodium falciparum strains; the two polyketides (1–2) demonstrated an inhibition of >75% against both parasite strains and while 2 was highly cytotoxic, herbimycin G (1) showed no cytotoxicity and good predicted water solubility.
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Affiliation(s)
- Larissa Buedenbender
- Environmental Futures Research Institute, School of Environment and Science, Griffith University, Gold Coast Campus, QLD 4222, Australia.
| | - Luke P Robertson
- Environmental Futures Research Institute, School of Environment and Science, Griffith University, Gold Coast Campus, QLD 4222, Australia.
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia.
| | - Leonardo Lucantoni
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia.
| | - Vicky M Avery
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia.
| | - D İpek Kurtböke
- GeneCology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore, QLD 4558, Australia.
| | - Anthony R Carroll
- Environmental Futures Research Institute, School of Environment and Science, Griffith University, Gold Coast Campus, QLD 4222, Australia.
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia.
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42
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Youssef DTA, Alahdal AM. Cytotoxic and Antimicrobial Compounds from the Marine-Derived Fungus, Penicillium Species. Molecules 2018; 23:E394. [PMID: 29439550 PMCID: PMC6017105 DOI: 10.3390/molecules23020394] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 02/05/2018] [Accepted: 02/06/2018] [Indexed: 11/22/2022] Open
Abstract
The organic extract of liquid cultures of the marine-derived Penicillium sp. was investigated. Fractionation of the extracts of the fungus led to the purification and identification of two new compounds, penicillatides A (1) and B (2), together with the previously reported cyclo(R-Pro-S-Phe) (3) and cyclo(R-Pro-R-Phe) (4). The structures of compounds 1-4 were assigned by extensive interpretation of their NMR and high-resolution mass spectrometry (HRMS). The antiproliferative and cytotoxic activities of the compounds against three human cancer cell lines as well as their antimicrobial activity against several pathogens were evaluated. Compounds 2-4 displayed variable cytotoxic and antimicrobial activities.
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Affiliation(s)
- Diaa T A Youssef
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
| | - Abdulrahman M Alahdal
- Department of Clinical Pharmacy, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
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43
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Wang Q, Mi G, Hickey D, Li Y, Tu J, Webster TJ, Shen Y. Azithromycin-loaded respirable microparticles for targeted pulmonary delivery for the treatment of pneumonia. Biomaterials 2018; 160:107-123. [PMID: 29407340 DOI: 10.1016/j.biomaterials.2018.01.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 01/04/2018] [Accepted: 01/14/2018] [Indexed: 12/19/2022]
Abstract
Pneumonia is a major contributor to infection-based hospitalizations and deaths in the United States. Antibiotics such as azithromycin (AZM), although effective at managing pneumonia, often suffer from off-target diffusion and poor bioavailability when administered orally or via intravenous injection. The formation of biofilms at the disease sites makes the treatment more complicated by protecting bacteria from antimicrobial agents and thus necessitating a much higher dosage of antibiotics to eradicate the biofilms. As such, targeted pulmonary delivery of antibiotics has emerged as a promising alternative by providing direct access to the lung while also allowing higher local therapeutic concentrations but minimal systemic exposure. In this study, AZM was encapsulated in N-fumaroylated diketopiperazine (FDKP) microparticles for efficient pulmonary delivery. Both in vitro and in vivo results demonstrated that AZM@FDKP-MPs administered via intratracheal insufflation achieved at least a 3.4 times higher local concentration and prolonged retention times compared to intravenous injection and oral administration, suggesting their potential to better manage bacterial pneumonia.
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Affiliation(s)
- Qiyue Wang
- Center for Research Development and Evaluation of Pharmaceutical Excipients and Generic Drugs, Department of Pharmaceutics, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Gujie Mi
- Department of Chemical Engineering, Northeastern University, 360 Huntington Avenue, Boston, MA 02115, United States
| | - Daniel Hickey
- Department of Chemical Engineering, Northeastern University, 360 Huntington Avenue, Boston, MA 02115, United States
| | - Yanan Li
- Center for Research Development and Evaluation of Pharmaceutical Excipients and Generic Drugs, Department of Pharmaceutics, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Jiasheng Tu
- Center for Research Development and Evaluation of Pharmaceutical Excipients and Generic Drugs, Department of Pharmaceutics, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China.
| | - Thomas J Webster
- Department of Chemical Engineering, Northeastern University, 360 Huntington Avenue, Boston, MA 02115, United States.
| | - Yan Shen
- Center for Research Development and Evaluation of Pharmaceutical Excipients and Generic Drugs, Department of Pharmaceutics, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China.
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Abstract
Cyclodipeptides, called 2,5-diketopiperazines (2,5-DKPs), are obtained by the condensation of two amino acids. Fungi have been considered to be a rich source of novel and bioactive cyclodipeptides. This review highlights the occurrence, structures and biological activities of the fungal cyclodipeptides with the literature covered up to July 2017. A total of 635 fungal cyclodipeptides belonging to the groups of tryptophan-proline, tryptophan-tryptophan, tryptophan-Xaa, proline-Xaa, non-tryptophan-non-proline, and thio-analogs have been discussed and reviewed. They were mainly isolated from the genera of Aspergillus and Penicillium. More and more cyclodipeptides have been isolated from marine-derived and plant endophytic fungi. Some of them were screened to have cytotoxic, phytotoxic, antimicrobial, insecticidal, vasodilator, radical scavenging, antioxidant, brine shrimp lethal, antiviral, nematicidal, antituberculosis, and enzyme-inhibitory activities to show their potential applications in agriculture, medicinal, and food industry.
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Affiliation(s)
- Xiaohan Wang
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Yuying Li
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Xuping Zhang
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Daowan Lai
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Ligang Zhou
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
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45
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Bischoff AJ, Nelson BM, Niemeyer ZL, Sigman MS, Movassaghi M. Quantitative Modeling of Bis(pyridine)silver(I) Permanganate Oxidation of Hydantoin Derivatives: Guidelines for Predicting the Site of Oxidation in Complex Substrates. J Am Chem Soc 2017; 139:15539-15547. [PMID: 28975782 PMCID: PMC5739304 DOI: 10.1021/jacs.7b09541] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The bis(pyridine)silver(I) permanganate promoted hydroxylation of diketopiperazines has served as a pivotal transformation in the synthesis of complex epipolythiodiketopiperazine alkaloids. This late-stage C-H oxidation chemistry is strategically critical to access N-acyl iminium ion intermediates necessary for nucleophilic thiolation of advanced diketopiperazines en route to potent epipolythiodiketopiperazine anticancer compounds. In this study, we develop an informative mathematical model using hydantoin derivatives as a training set of substrates by relating the relative rates of oxidation to various calculated molecular descriptors. The model prioritizes Hammett values and percent buried volume as key contributing factors in the hydantoin series while correctly predicting the experimentally observed oxidation sites in various complex diketopiperazine case studies. Thus, a method is presented by which to use simplified training molecules and resulting correlations to explain and predict reaction behavior for more complex substrates.
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Affiliation(s)
- Amanda J. Bischoff
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Brandon M. Nelson
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Zachary L. Niemeyer
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Matthew S. Sigman
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Mohammad Movassaghi
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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46
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Silva MMD, Andrade MDS, Bauermeister A, Merfa MV, Forim MR, Fernandes JB, Vieira PC, Silva MFDGFD, Lopes NP, Machado MA, Souza AAD. A Simple Defined Medium for the Production of True Diketopiperazines in Xylella fastidiosa and Their Identification by Ultra-Fast Liquid Chromatography-Electrospray Ionization Ion Trap Mass Spectrometry. Molecules 2017; 22:E985. [PMID: 28608830 PMCID: PMC6152636 DOI: 10.3390/molecules22060985] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 05/24/2017] [Accepted: 06/08/2017] [Indexed: 11/28/2022] Open
Abstract
Diketopiperazines can be generated by non-enzymatic cyclization of linear dipeptides at extreme temperature or pH, and the complex medium used to culture bacteria and fungi including phytone peptone and trypticase peptone, can also produce cyclic peptides by heat sterilization. As a result, it is not always clear if many diketopiperazines reported in the literature are artifacts formed by the different complex media used in microorganism growth. An ideal method for analysis of these compounds should identify whether they are either synthesized de novo from the products of primary metabolism and deliver true diketopiperazines. A simple defined medium (X. fastidiosa medium or XFM) containing a single carbon source and no preformed amino acids has emerged as a method with a particularly high potential for the grown of X. fastidiosa and to produce genuine natural products. In this work, we identified a range of diketopiperazines from X. fastidiosa 9a5c growth in XFM, using Ultra-Fast Liquid Chromatography coupled with mass spectrometry. Diketopiperazines are reported for the first time from X. fastidiosa, which is responsible for citrus variegated chlorosis. We also report here fatty acids from X. fastidiosa, which were not biologically active as diffusible signals, and the role of diketopiperazines in signal transduction still remains unknown.
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Affiliation(s)
| | - Moacir Dos Santos Andrade
- Departamento de Química, Universidade Federal de São Carlos, CP 676, 13565-905 São Carlos-SP, Brazil.
| | - Anelize Bauermeister
- Núcleo Pesquisas em Produtos Naturais e Sintéticos, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, 14040-903 Ribeirão Preto-SP, Brazil.
| | - Marcus Vinícius Merfa
- Centro APTA Citros Sylvio Moreira, Instituto Agronômico, CP 04, 13490-970 Cordeirópolis-SP, Brazil.
| | - Moacir Rossi Forim
- Departamento de Química, Universidade Federal de São Carlos, CP 676, 13565-905 São Carlos-SP, Brazil.
| | - João Batista Fernandes
- Departamento de Química, Universidade Federal de São Carlos, CP 676, 13565-905 São Carlos-SP, Brazil.
| | - Paulo Cezar Vieira
- Departamento de Química, Universidade Federal de São Carlos, CP 676, 13565-905 São Carlos-SP, Brazil.
| | | | - Norberto Peporine Lopes
- Núcleo Pesquisas em Produtos Naturais e Sintéticos, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, 14040-903 Ribeirão Preto-SP, Brazil.
| | - Marcos Antônio Machado
- Centro APTA Citros Sylvio Moreira, Instituto Agronômico, CP 04, 13490-970 Cordeirópolis-SP, Brazil.
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47
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Chagas FO, Caraballo-Rodríguez AM, Dorrestein PC, Pupo MT. Expanding the Chemical Repertoire of the Endophyte Streptomyces albospinus RLe7 Reveals Amphotericin B as an Inducer of a Fungal Phenotype. J Nat Prod 2017; 80:1302-1309. [PMID: 28375005 DOI: 10.1021/acs.jnatprod.6b00870] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
During an investigation of the chemistry of the endophytic actinobacterium Streptomyces albospinus RLe7, which was isolated from the roots of the Brazilian medicinal plant Lychnophora ericoides, three new natural products, (2R*,4S*)-2-((1'S*)-hydroxy-4'-methylpentyl)-4-(hydroxymethyl)butanolide (1), (3R*,4S*,5R*,6S*)-tetrahydro-4-hydroxy-3,5,6-trimethyl-2-pyranone (2), and 1-O-(phenylacetyl)glycerol (3), together with known secondary metabolites (S)-4-benzyl-3-oxo-3,4-dihydro-1H-pyrrolo[2,1-c][1,4]oxazine-6-carbaldehyde (4), (S)-4-isobutyl-3-oxo-3,4-dihydro-1H-pyrrolo[2,1-c][1,4]oxazine-6-carbaldehyde (5), and the diketopiperazines cyclo(l-Tyr-l-Pro) (6) and cyclo(l-Val-l-Pro) (7), were isolated. The role of isolated natural products in the interaction between S. albospinus RLe7 and the fungus Coniochaeta sp. FLe4, an endophyte from the same plant, was investigated. None of these isolated actinobacterial compounds were able to inhibit the fungus or induce the fungal red pigmentation observed when both endophytes interact. Further investigation using mass spectrometry approaches enabled identifying the well-known antifungal compound amphotericin B (9) as a microbial metabolite of S. albospinus RLe7. Finally, compound 9 was demonstrated as at least one of the agents responsible for both the antifungal activity and induction of red-pigmented fungal phenotype.
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Affiliation(s)
- Fernanda Oliveira Chagas
- Departamento de Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo , Avenida do Café, s/n, Ribeirão Preto, SP 14040-903, Brazil
| | - Andrés Mauricio Caraballo-Rodríguez
- Departamento de Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo , Avenida do Café, s/n, Ribeirão Preto, SP 14040-903, Brazil
| | - Pieter C Dorrestein
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093-0751, United States
| | - Mônica Tallarico Pupo
- Departamento de Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo , Avenida do Café, s/n, Ribeirão Preto, SP 14040-903, Brazil
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48
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Quezada M, Shang Z, Kalansuriya P, Salim AA, Lacey E, Capon RJ. Waspergillamide A, a Nitro depsi-Tetrapeptide Diketopiperazine from an Australian Mud Dauber Wasp-Associated Aspergillus sp. (CMB-W031). J Nat Prod 2017; 80:1192-1195. [PMID: 28234476 DOI: 10.1021/acs.jnatprod.6b01062] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Chemical profiling of extracts from a mud dauber wasp-associated fungus, Aspergillus sp. (CMB-W031), revealed a remarkably diverse array of secondary metabolites, with many biosynthetic gene clusters being transcriptionally responsive to specific culture conditions. Chemical fractionation of a jasmine rice cultivation yielded many known fungal metabolites, including the highly cytotoxic (-)-stephacidin B and an unprecedented nonribosomal peptide synthase derived nitro depsi-tetrapeptide diketopiperazine, waspergillamide A (1). All structures were assigned by detailed spectroscopic analysis and, where appropriate, chemical degradation and Marfey's analysis.
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Affiliation(s)
- Michelle Quezada
- Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland , St Lucia, Queensland 4072, Australia
| | - Zhuo Shang
- Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland , St Lucia, Queensland 4072, Australia
| | - Pabasara Kalansuriya
- Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland , St Lucia, Queensland 4072, Australia
| | - Angela A Salim
- Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland , St Lucia, Queensland 4072, Australia
| | - Ernest Lacey
- Microbial Screening Technologies , Smithfield, NSW 2164, Australia
| | - Robert J Capon
- Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland , St Lucia, Queensland 4072, Australia
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Kalansuriya P, Quezada M, Espósito BP, Capon RJ. Talarazines A-E: Noncytotoxic Iron(III) Chelators from an Australian Mud Dauber Wasp-Associated Fungus, Talaromyces sp. (CMB-W045). J Nat Prod 2017; 80:609-615. [PMID: 28058837 DOI: 10.1021/acs.jnatprod.6b00889] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Chemical analysis of an Australian mud dauber wasp-associated fungus, Talaromyces sp. (CMB-W045), yielded five new coprogen siderophores, talarazines A-E (1-5), together with dimerumic acid (6), desferricoprogen (7), and elutherazine B (8). Structures inclusive of absolute configuration were assigned on the basis of detailed spectroscopic analysis and application of the C3 Marfey's method. We report on the noncytotoxic Fe(III) chelation properties of 1-8 and demonstrate that biosynthesis is regulated by available Fe(III) in culture media. We demonstrate a magnetic nanoparticule approach to extracting high-affinity Fe(III) binding metabolites (i.e., 8) from complex extracts.
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Affiliation(s)
- Pabasara Kalansuriya
- Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland , St Lucia, Queensland 4072, Australia
| | - Michelle Quezada
- Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland , St Lucia, Queensland 4072, Australia
| | - Breno P Espósito
- Institute of Chemistry, University of São Paulo , São Paulo 05508-000, Brazil
| | - Robert J Capon
- Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland , St Lucia, Queensland 4072, Australia
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50
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Huang LH, Chen YX, Yu JC, Yuan J, Li HJ, Ma WZ, Watanapokasin R, Hu KC, Niaz SI, Yang DP, Lan WJ. Secondary Metabolites from the Marine-Derived Fungus Dichotomomyces sp. L-8 and Their Cytotoxic Activity. Molecules 2017; 22:molecules22030444. [PMID: 28287456 PMCID: PMC6155177 DOI: 10.3390/molecules22030444] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/03/2017] [Accepted: 03/07/2017] [Indexed: 01/01/2023] Open
Abstract
Bioassay-guided isolation of the secondary metabolites from the fungus Dichotomomyces sp. L-8 associated with the soft coral Lobophytum crassum led to the discovery of two new compounds, dichotones A and B (1 and 2), together with four known compounds including dichotocejpin C (3), bis-N-norgliovictin (4), bassiatin (5) and (3R,6R)-bassiatin (6). The structures of these compounds were determined by 1D, 2D NMR and mass spectrometry. (3R,6R)-bassiatin (6) displayed significant cytotoxic activities against the human breast cancer cell line MDA-MB-435 and the human lung cancer cell line Calu3 with IC50 values of 7.34 ± 0.20 and 14.54 ± 0.01 μM, respectively, while bassiatin (5), the diastereomer of compound 6, was not cytotoxic.
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Affiliation(s)
- Li-Hong Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
- Guangdong Technology Research Center for Advanced Chinese Medicine, Guangzhou 510006, China.
| | - Yan-Xiu Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
- Guangdong Technology Research Center for Advanced Chinese Medicine, Guangzhou 510006, China.
| | - Jian-Chen Yu
- Zhongshan School of Medicine, Sun Yat-sen University, 74 Zhongshan Road II, Guangzhou 510080, China.
| | - Jie Yuan
- Zhongshan School of Medicine, Sun Yat-sen University, 74 Zhongshan Road II, Guangzhou 510080, China.
| | - Hou-Jin Li
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China.
| | - Wen-Zhe Ma
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Avenida Wai Long, Taipa 519020, Macau (SAR), China.
| | - Ramida Watanapokasin
- Department of Biochemistry, Faculty of Medicine, Srinakharinwirot University, Bangkok 10110, Thailand.
| | - Kun-Chao Hu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
- Guangdong Technology Research Center for Advanced Chinese Medicine, Guangzhou 510006, China.
| | - Shah Iram Niaz
- Institute of Chemical Sciences, Gomal University, D.I.Khan 29050, Pakistan.
| | - De-Po Yang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
- Guangdong Technology Research Center for Advanced Chinese Medicine, Guangzhou 510006, China.
| | - Wen-Jian Lan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
- Guangdong Technology Research Center for Advanced Chinese Medicine, Guangzhou 510006, China.
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