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Li W, Zhang W, Cheng Y, Shen Y, Qi J, Lin HW, Zhou Y. Investigation of carbonyl amidation and O-methylation during biosynthesis of the pharmacophore pyridyl of antitumor piericidins. Synth Syst Biotechnol 2022; 7:880-886. [PMID: 35601822 PMCID: PMC9112059 DOI: 10.1016/j.synbio.2022.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/12/2022] [Accepted: 05/03/2022] [Indexed: 12/05/2022] Open
Abstract
Piericidins are a large family of bacterial α-pyridone antibiotics with antitumor activities such as their anti-renal carcinoma activity exhibited recently in nude mice. The backbones of piericidins are derived from β, δ-diketo carboxylic acids, which are offloaded from a modular polyketide synthase (PKS) and putatively undergo a carbonyl amidation before α-pyridone ring formation. The tailoring modifications to the α-pyridone structure mainly include the verified hydroxylation and O-methylation of the C-4′ position and an unidentified C-5′ O-methylation. Here, we describe a piericidin producer, terrestrial Streptomyces conglobatus, which contains a piericidin biosynthetic gene cluster in two different loci. Deletion of the amidotransferase gene pieD resulted in the accumulation of two fatty acids that should be degraded from the nascent carboxylic acid released by the PKS, supporting the carbonyl amidation function of PieD during α-pyridone ring formation. Deletion of the O-methyltransferase gene pieB1 led to the production of three piericidin analogues lacking C-5′ O-methylation, therefore confirming that PieB1 specifically catalyses the tailoring modification. Moreover, bioactivity analysis of the mutant-derived products provided clues regarding the structure-function relationship for antitumor activity. The work addresses two previously unidentified steps involved in pyridyl pharmacophore formation during piericidin biosynthesis, facilitating the rational bioengineering of the biosynthetic pathway towards valuable antitumor agents.
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Metabolites of soil microorganisms modulate amyloid β production in Alzheimer's neurons. Sci Rep 2022; 12:2690. [PMID: 35236875 PMCID: PMC8891331 DOI: 10.1038/s41598-022-06513-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 01/05/2022] [Indexed: 11/08/2022] Open
Abstract
Microbial flora is investigated to be related with neuropathological conditions in Alzheimer’s disease (AD), and is attracting attention as a drug discovery resource. However, the relevance between the soil microbiota and the pathological condition has not been fully clarified due to the difficulty in isolation culture and the component complexity. In this study, we established a library of secondly metabolites produced in microorganism to investigate the potential effect of microorganisms on the production of amyloid β (Aβ), one of the most representative pathogens of AD. We conducted a library screening to quantify Aβ and neuronal toxicity by using cortical neurons from human induced pluripotent stem cells (iPSCs) of AD patients after adding secondary metabolites. Screening results and following assessment of dose-dependency identified Verrucarin A, produced in Myrothecium spp., showed 80% decrease in Aβ production. Furthermore, addition of Mer-A2026A, produced in Streptomyces pactum, showed increase in Aβ42/40 ratio at the low concentration, and decrease in Aβ production at the higher concentration. As a result, established library and iPSC-based phenotyping assay clarified a direct link between Aβ production and soil microorganisms. These results suggest that Aβ-microorganism interaction may provide insight into the AD pathophysiology with potential therapeutics.
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Li K, Su Z, Gao Y, Lin X, Pang X, Yang B, Tao H, Luo X, Liu Y, Zhou X. Cytotoxic Minor Piericidin Derivatives from the Actinomycete Strain Streptomyces psammoticus SCSIO NS126. Mar Drugs 2021; 19:md19080428. [PMID: 34436267 PMCID: PMC8398042 DOI: 10.3390/md19080428] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 07/21/2021] [Accepted: 07/26/2021] [Indexed: 12/18/2022] Open
Abstract
The mangrove-sediment-derived actinomycete strain Streptomyces psammoticus SCSIO NS126 was found to have productive piericidin metabolites featuring anti-renal cell carcinoma activities. In this study, in order to explore more diverse piericidin derivatives, and therefore to discover superior anti-tumor lead compounds, the NS126 strain was further fermented at a 300-L scale under optimized fermentation conditions. As a result, eight new minor piericidin derivatives (piericidins L-R (1-7) and 11-demethyl-glucopiericidin A (8)) were obtained, along with glucopiericidin B (9). The new structures including absolute configurations were determined by spectroscopic methods coupled with experimental and calculated electronic circular dichroism. We also proposed plausible biosynthetic pathways for these unusual post-modified piericidins. Compounds 1 and 6 showed selective cytotoxic activities against OS-RC-2 cells, and 2-5 exhibited potent cytotoxicity against HL-60 cells, with IC50 values lower than 0.1 μM. The new piericidin glycoside 8 was cytotoxic against ACHN, HL-60 and K562, with IC50 values of 2.3, 1.3 and 5.5 μM, respectively. The ability to arrest the cell cycle and cell apoptosis effects induced by 1 and 6 in OS-RC-2 cells, 2 in HL-60 cells, and 8 in ACHN cells were then further investigated. This study enriched the structural diversity of piericidin derivatives and confirmed that piericidins deserve further investigations as promising anti-tumor agents.
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Affiliation(s)
- Kunlong Li
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (K.L.); (X.L.); (X.P.); (B.Y.)
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China;
- College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ziqi Su
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China; (Z.S.); (H.T.)
| | - Yongli Gao
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China;
- Institutional Center for Shared Technologies and Facilities, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Xiuping Lin
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (K.L.); (X.L.); (X.P.); (B.Y.)
| | - Xiaoyan Pang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (K.L.); (X.L.); (X.P.); (B.Y.)
| | - Bin Yang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (K.L.); (X.L.); (X.P.); (B.Y.)
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China;
| | - Huaming Tao
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China; (Z.S.); (H.T.)
| | - Xiaowei Luo
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China
- Correspondence: (X.L.); (Y.L.); (X.Z.); Tel.: +86-020-89023174 (X.Z.)
| | - Yonghong Liu
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (K.L.); (X.L.); (X.P.); (B.Y.)
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China;
- College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China
- Correspondence: (X.L.); (Y.L.); (X.Z.); Tel.: +86-020-89023174 (X.Z.)
| | - Xuefeng Zhou
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (K.L.); (X.L.); (X.P.); (B.Y.)
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China;
- Correspondence: (X.L.); (Y.L.); (X.Z.); Tel.: +86-020-89023174 (X.Z.)
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Zhao HW, Li JQ, Ding WJ. Chemical constituents from salt lake-derived Streptomyces sp. QHA10. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2021; 23:26-32. [PMID: 31847583 DOI: 10.1080/10286020.2019.1700230] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 11/29/2019] [Indexed: 06/10/2023]
Abstract
Two new alkaloids (1,2) and one new enoic acid (3), together with three known piericidins (4-6), were isolated from the liquid fermentation of the salt lake derived Streptomyces sp. QHA10. The structures of 1-3 were elucidated based on extensive spectroscopic data (NMR, HRESIMS) as well as single-crystal X-ray diffraction. Compound 3 showed potential anti-inflammatory activity by inhibiting the production of nitric oxide (NO) in lipopolysaccharide (LPS)-induced RAW 264.7 mouse macrophages with the IC50 value of 24.5 μM.
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Affiliation(s)
- Hao-Wen Zhao
- Ocean College, Zhejiang University, Zhoushan 316021, China
| | - Jia-Qi Li
- Ocean College, Zhejiang University, Zhoushan 316021, China
| | - Wan-Jing Ding
- Ocean College, Zhejiang University, Zhoushan 316021, China
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Wang H, Sun T, Song W, Guo X, Cao P, Xu X, Shen Y, Zhao J. Taxonomic Characterization and Secondary Metabolite Analysis of NEAU-wh3-1: An Embleya Strain with Antitumor and Antibacterial Activity. Microorganisms 2020; 8:E441. [PMID: 32244993 PMCID: PMC7143961 DOI: 10.3390/microorganisms8030441] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/17/2020] [Accepted: 03/18/2020] [Indexed: 01/29/2023] Open
Abstract
Cancer is a serious threat to human health. With the increasing resistance to known drugs, it is still urgent to find new drugs or pro-drugs with anti-tumor effects. Natural products produced by microorganisms have played an important role in the history of drug discovery, particularly in the anticancer and anti-infective areas. The plant rhizosphere ecosystem is a rich resource for the discovery of actinomycetes with potential applications in pharmaceutical science, especially Streptomyces. We screened Streptomyces-like strains from the rhizosphere soil of wheat (Triticum aestivum L.) in Hebei province, China, and thirty-nine strains were obtained. Among them, the extracts of 14 isolates inhibited the growth of colon tumor cell line HCT-116. Strain NEAU-wh-3-1 exhibited better inhibitory activity, and its active ingredients were further studied. Then, 16S rRNA gene sequence similarity studies showed that strain NEAU-wh3-1 with high sequence similarities to Embleya scabrispora DSM 41855T (99.65%), Embleya hyalina MB891-A1T (99.45%), and Streptomyces lasii 5H-CA11T (98.62%). Moreover, multilocus sequence analysis based on the five other house-keeping genes (atpD, gyrB, rpoB, recA, and trpB) and polyphasic taxonomic approach comprising chemotaxonomic, phylogenetic, morphological, and physiological characterization indicated that the isolate should be assigned to the genus Embleya and was different from its closely related strains, therefore, it is proposed that strain NEAU-wh3-1 may be classified as representatives of a novel species of the genus Embleya. Furthermore, active substances in the fermentation broth of strain NEAU-wh-3-1 were isolated by bioassay-guided analysis and identified by nuclear magnetic resonance (NMR) and mass spectrometry (MS) analyses. Consequently, one new Zincophorin analogue together with seven known compounds was detected. The new compound showed highest antitumor activity against three human cell lines with the 50% inhibition (IC50) values of 8.8-11.6 μg/mL and good antibacterial activity against four pathogenic bacteria, the other known compounds also exhibit certain biological activity.
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Affiliation(s)
- Han Wang
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, Northeast Agricultural University, No. 600 Changjiang Road, Xiangfang District, Harbin 150030, China; (H.W.); (T.S.); (W.S.); (X.G.); (P.C.); (X.X.)
| | - Tianyu Sun
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, Northeast Agricultural University, No. 600 Changjiang Road, Xiangfang District, Harbin 150030, China; (H.W.); (T.S.); (W.S.); (X.G.); (P.C.); (X.X.)
| | - Wenshuai Song
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, Northeast Agricultural University, No. 600 Changjiang Road, Xiangfang District, Harbin 150030, China; (H.W.); (T.S.); (W.S.); (X.G.); (P.C.); (X.X.)
| | - Xiaowei Guo
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, Northeast Agricultural University, No. 600 Changjiang Road, Xiangfang District, Harbin 150030, China; (H.W.); (T.S.); (W.S.); (X.G.); (P.C.); (X.X.)
| | - Peng Cao
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, Northeast Agricultural University, No. 600 Changjiang Road, Xiangfang District, Harbin 150030, China; (H.W.); (T.S.); (W.S.); (X.G.); (P.C.); (X.X.)
| | - Xi Xu
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, Northeast Agricultural University, No. 600 Changjiang Road, Xiangfang District, Harbin 150030, China; (H.W.); (T.S.); (W.S.); (X.G.); (P.C.); (X.X.)
| | - Yue Shen
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, Northeast Agricultural University, No. 600 Changjiang Road, Xiangfang District, Harbin 150030, China; (H.W.); (T.S.); (W.S.); (X.G.); (P.C.); (X.X.)
- College of Science, Northeast Agricultural University, No. 600 Changjiang Road, Xiangfang District, Harbin 150030, China
| | - Junwei Zhao
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, Northeast Agricultural University, No. 600 Changjiang Road, Xiangfang District, Harbin 150030, China; (H.W.); (T.S.); (W.S.); (X.G.); (P.C.); (X.X.)
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Han X, Liu Z, Zhang Z, Zhang X, Zhu T, Gu Q, Li W, Che Q, Li D. Geranylpyrrol A and Piericidin F from Streptomyces sp. CHQ-64 ΔrdmF. JOURNAL OF NATURAL PRODUCTS 2017; 80:1684-1687. [PMID: 28418245 DOI: 10.1021/acs.jnatprod.7b00016] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Two new compounds, geranylpyrrol A (1) and piericidin F (2), were isolated from a reedsmycins nonproducing mutant strain of Streptomyces sp. CHQ-64. Their structures, including absolute configurations, were elucidated by extensive NMR, MS, NOESY, and ECD analyses. Geranylpyrrol A (1) is an unusual naturally occurring 2,3,4-trisubstituted pyrrole, and piericidin F (2) showed cytotoxicity against HeLa, NB4, A549, and H1975 cell lines with IC50 values of 0.003, 0.037, 0.56, and 0.49 μM, respectively.
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Affiliation(s)
- Xiaoning Han
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
| | - Zengzhi Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
| | - Zhenzhen Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
| | - Xiaomin Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
| | - Tianjiao Zhu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
| | - Qianqun Gu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
| | - Wenli Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
| | - Qian Che
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
| | - Dehai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology , Qingdao 266237, People's Republic of China
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The unique chemistry and biology of the piericidins. J Antibiot (Tokyo) 2016; 69:582-93. [PMID: 27301663 DOI: 10.1038/ja.2016.71] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 05/13/2016] [Accepted: 05/20/2016] [Indexed: 12/30/2022]
Abstract
The piericidin family of microbial metabolites features a 4-pyridinol core linked with a methylated polyketide side chain. Piericidins are exclusively produced by actinomycetes, especially members of the genus Streptomyces. The close structural similarity with coenzyme Q renders the piericidins important NADH-ubiquinone oxidoreductase (complex I) inhibitors in the mitochondrial electron transport chain. Because of the significant activities of the piericidins, which include insecticidal, antimicrobial and antitumor effects, total syntheses of the piericidins were developed using various synthetic strategies. The biosynthetic origin of this class has also been the subject of investigation. This review covers the isolation and structure determination of the natural piericidins, their chemical modification, the total syntheses of natural and unnatural analogs, their biosynthesis, and reported biological activities together with structure-activity relationships. Given the fundamental biology of this class of metabolites, the piericidin family will likely continue to attract attention as biological probes of important biosynthetic processes.
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Chen Y, Zhang W, Zhu Y, Zhang Q, Tian X, Zhang S, Zhang C. Elucidating hydroxylation and methylation steps tailoring piericidin A1 biosynthesis. Org Lett 2014; 16:736-9. [PMID: 24409990 DOI: 10.1021/ol4034176] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The piericidin A1 (1) gene cluster was identified from the deep-sea derived Streptomyces sp. SCSIO 03032. Our in vivo and in vitro experiments verified PieE as a 4'-hydroxylase and PieB2 as a 4'-O-methyltransferase, allowing the elucidation of the post-PKS modification steps involved in 1 biosynthesis. In addition, the shunt metabolite piericidin E1 (7) was identified as a novel analogue featuring a C-2/C-3 epoxy ring.
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Affiliation(s)
- Yaolong Chen
- Key Laboratory of Tropical Marine Bio-resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, China
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An NF-κB-based high-throughput screen identifies piericidins as inhibitors of the Yersinia pseudotuberculosis type III secretion system. Antimicrob Agents Chemother 2013; 58:1118-26. [PMID: 24295981 DOI: 10.1128/aac.02025-13] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The type III secretion system (T3SS) is a bacterial appendage used by dozens of Gram-negative pathogens to subvert host defenses and cause disease, making it an ideal target for pathogen-specific antimicrobials. Here, we report the discovery and initial characterization of two related natural products with T3SS-inhibitory activity that were derived from a marine actinobacterium. Bacterial extracts containing piericidin A1 and the piericidin derivative Mer-A 2026B inhibited Yersinia pseudotuberculosis from triggering T3SS-dependent activation of the host transcription factor NF-κB in HEK293T cells but were not toxic to mammalian cells. As the Yersinia T3SS must be functional in order to trigger NF-κB activation, these data indicate that piericidin A1 and Mer-A 2026B block T3SS function. Consistent with this, purified piericidin A1 and Mer-A 2026B dose-dependently inhibited translocation of the Y. pseudotuberculosis T3SS effector protein YopM inside CHO cells. In contrast, neither compound perturbed bacterial growth in vitro, indicating that piericidin A1 and Mer-A 2026B do not function as general antibiotics in Yersinia. In addition, when Yersinia was incubated under T3SS-inducing culture conditions in the absence of host cells, Mer-A 2026B and piericidin A1 inhibited secretion of T3SS cargo as effectively as or better than several previously described T3SS inhibitors, such as MBX-1641 and aurodox. This suggests that Mer-A 2026B and piericidin A1 do not block type III secretion by blocking the bacterium-host cell interaction, but rather inhibit an earlier stage, such as T3SS needle assembly. In summary, the marine-derived natural products Mer-A 2026B and piericidin A1 possess previously uncharacterized activity against the bacterial T3SS.
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Hoecker J, Gademann K. Enantioselective Total Syntheses and Absolute Configuration of JBIR-02 and Mer-A2026B. Org Lett 2013; 15:670-3. [DOI: 10.1021/ol303502a] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Johannes Hoecker
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Karl Gademann
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland
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Shaaban KA, Helmke E, Kelter G, Fiebig HH, Laatsch H. Glucopiericidin C: a cytotoxic piericidin glucoside antibiotic produced by a marine Streptomyces isolate. J Antibiot (Tokyo) 2010; 64:205-9. [PMID: 21081953 DOI: 10.1038/ja.2010.125] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Khaled A Shaaban
- Institute of Organic and Biomolecular Chemistry, University of Göttingen, Göttingen, Germany
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Hosokawa S, Yokota K, Imamura K, Suzuki Y, Kawarasaki M, Tatsuta K. Total Synthesis of an Anti-Helicobacter pyloriAgent, Actinopyrone A. Chem Asian J 2008; 3:1415-21. [DOI: 10.1002/asia.200800109] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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Ueda JY, Togashi T, Matukura S, Nagai A, Nakashima T, Komaki H, Anzai K, Harayama S, Doi T, Takahashi T, Natsume T, Kisu Y, Goshima N, Nomura N, Takagi M, Shin-Ya K. A Novel Nuclear Export Inhibitor JBIR-02, a New Piericidin Discovered from Streptomyces sp. ML55. J Antibiot (Tokyo) 2007; 60:459-62. [PMID: 17721005 DOI: 10.1038/ja.2007.59] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A new member of the piericidin family, JBIR-02, was isolated from mycelium of Streptomyces sp. ML55 together with two known piericidin derivatives, piericidin A(1) and IT-143-B. The structure was determined on the basis of spectroscopic data. JBIR-02 inhibited nuclear export of beta-arrestin in HeLa cells at the concentration of 20 microM.
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Affiliation(s)
- Jun-Ya Ueda
- Japan Biological Information Research Center (JBIRC), Japan Biological Informatics Consortium (JBIC), Tokyo, Japan.
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