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Li Q, Li S, Li S, Hao X, Wang A, Si S, Xu Y, Shu J, Gan M. Antimicrobial and Anti-inflammatory Cyclic Tetrapeptides from the Co-cultures of Two Marine-Derived Fungi. JOURNAL OF NATURAL PRODUCTS 2024; 87:365-370. [PMID: 38276888 DOI: 10.1021/acs.jnatprod.3c01115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Violaceotides B-E (1-4), four new cyclic tetrapeptides, along with seven known compounds, were identified from the sponge-associated Aspergillus insulicola IMB18-072 co-cultivated with the marine-derived Alternaria angustiovoidea IMB20-805. Their structures were elucidated by extensive analysis of spectroscopic data, including HRESIMS, 1D and 2D NMR, and MS/MS data. The absolute configurations were determined by the advanced Marfey's method. Compounds 2, 3, and violaceotide A (5) displayed selective antimicrobial activities against the aquatic pathogenic bacteria Edwardsiella tarda and E. ictaluri. In addition, compounds 1-5 showed inhibitory activities against the LPS-induced expression of the inflammatory mediator IL-6 in RAW264.7 cells at a concentration of 10 μM.
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Affiliation(s)
- Qin Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
- Key Laboratory of Modern Preparation of Traditional Chinese Medicines, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, People's Republic of China
| | - Shasha Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Shunwang Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Xiaomeng Hao
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Anqi Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Shuyi Si
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Yanni Xu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Jicheng Shu
- Key Laboratory of Modern Preparation of Traditional Chinese Medicines, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, People's Republic of China
| | - Maoluo Gan
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
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Hareeri RH, Aldurdunji MM, Abdallah HM, Alqarni AA, Mohamed SGA, Mohamed GA, Ibrahim SRM. Aspergillus ochraceus: Metabolites, Bioactivities, Biosynthesis, and Biotechnological Potential. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196759. [PMID: 36235292 PMCID: PMC9572620 DOI: 10.3390/molecules27196759] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 09/27/2022] [Accepted: 10/08/2022] [Indexed: 11/24/2022]
Abstract
Fungus continues to attract great attention as a promising pool of biometabolites. Aspergillus ochraceus Wilh (Aspergillaceae) has established its capacity to biosynthesize a myriad of metabolites belonging to different chemical classes, such as isocoumarins, pyrazines, sterols, indole alkaloids, diketopiperazines, polyketides, peptides, quinones, polyketides, and sesquiterpenoids, revealing various bioactivities that are antimicrobial, cytotoxic, antiviral, anti-inflammatory, insecticidal, and neuroprotective. Additionally, A. ochraceus produces a variety of enzymes that could have variable industrial and biotechnological applications. From 1965 until June 2022, 165 metabolites were reported from A. ochraceus isolated from different sources. In this review, the formerly separated metabolites from A. ochraceus, including their bioactivities and biosynthesis, in addition, the industrial and biotechnological potential of A. ochraceus are highlighted.
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Affiliation(s)
- Rawan H. Hareeri
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohammed M. Aldurdunji
- Department of Clinical Pharmacy, College of Pharmacy, Umm Al-Qura University, P.O. Box 13578, Makkah 21955, Saudi Arabia
| | - Hossam M. Abdallah
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Ali A. Alqarni
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Pharmaceutical Care Department, Ministry of National Guard—Health Affairs, Jeddah 22384, Saudi Arabia
| | | | - Gamal A. Mohamed
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Sabrin R. M. Ibrahim
- Department of Chemistry, Preparatory Year Program, Batterjee Medical College, Jeddah 21442, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
- Correspondence: ; Tel.: +966-581183034
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Sun C, Zhang Z, Ren Z, Yu L, Zhou H, Han Y, Shah M, Che Q, Zhang G, Li D, Zhu T. Antibacterial Cyclic Tripeptides from Antarctica-Sponge-Derived Fungus Aspergillus insulicola HDN151418. Mar Drugs 2020; 18:md18110532. [PMID: 33114712 PMCID: PMC7694092 DOI: 10.3390/md18110532] [Citation(s) in RCA: 16] [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: 10/07/2020] [Revised: 10/23/2020] [Accepted: 10/24/2020] [Indexed: 12/11/2022] Open
Abstract
Three new aspochracin-type cyclic tripeptides, sclerotiotides M–O (1–3), together with three known analogues, sclerotiotide L (4), sclerotiotide F (5), and sclerotiotide B (6), were obtained from the ethyl acetate extract of the fungus Aspergillus insulicola HDN151418, which was isolated from an unidentified Antarctica sponge. Spectroscopic and chemical approaches were used to elucidate their structures. The absolute configuration of the side chain in compound 4 was elucidated for the first time. Compounds 1 and 2 showed broad antimicrobial activity against a panel of pathogenic strains, including Bacillus cereus, Proteus species, Mycobacterium phlei, Bacillus subtilis, Vibrio parahemolyticus, Edwardsiella tarda, MRCNS, and MRSA, with MIC values ranging from 1.56 to 25.0 µM.
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Affiliation(s)
- Chunxiao Sun
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (C.S.); (Z.Z.); (Z.R.); (L.Y.); (H.Z.); (Y.H.); (M.S.); (Q.C.); (G.Z.)
| | - Ziping Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (C.S.); (Z.Z.); (Z.R.); (L.Y.); (H.Z.); (Y.H.); (M.S.); (Q.C.); (G.Z.)
| | - Zilin Ren
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (C.S.); (Z.Z.); (Z.R.); (L.Y.); (H.Z.); (Y.H.); (M.S.); (Q.C.); (G.Z.)
| | - Liu Yu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (C.S.); (Z.Z.); (Z.R.); (L.Y.); (H.Z.); (Y.H.); (M.S.); (Q.C.); (G.Z.)
| | - Huan Zhou
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (C.S.); (Z.Z.); (Z.R.); (L.Y.); (H.Z.); (Y.H.); (M.S.); (Q.C.); (G.Z.)
| | - Yaxin Han
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (C.S.); (Z.Z.); (Z.R.); (L.Y.); (H.Z.); (Y.H.); (M.S.); (Q.C.); (G.Z.)
| | - Mudassir Shah
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (C.S.); (Z.Z.); (Z.R.); (L.Y.); (H.Z.); (Y.H.); (M.S.); (Q.C.); (G.Z.)
| | - Qian Che
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (C.S.); (Z.Z.); (Z.R.); (L.Y.); (H.Z.); (Y.H.); (M.S.); (Q.C.); (G.Z.)
| | - Guojian Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (C.S.); (Z.Z.); (Z.R.); (L.Y.); (H.Z.); (Y.H.); (M.S.); (Q.C.); (G.Z.)
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Dehai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (C.S.); (Z.Z.); (Z.R.); (L.Y.); (H.Z.); (Y.H.); (M.S.); (Q.C.); (G.Z.)
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Open Studio for Druggability Research of Marine Natural Products, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Correspondence: (D.L.); (T.Z.); Tel.: +86-532-82031619 (D.L.); +86-532-82031632 (T.Z.)
| | - Tianjiao Zhu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (C.S.); (Z.Z.); (Z.R.); (L.Y.); (H.Z.); (Y.H.); (M.S.); (Q.C.); (G.Z.)
- Correspondence: (D.L.); (T.Z.); Tel.: +86-532-82031619 (D.L.); +86-532-82031632 (T.Z.)
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Wang X, Lin M, Xu D, Lai D, Zhou L. Structural Diversity and Biological Activities of Fungal Cyclic Peptides, Excluding Cyclodipeptides. Molecules 2017; 22:E2069. [PMID: 29186926 PMCID: PMC6150023 DOI: 10.3390/molecules22122069] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 11/20/2017] [Accepted: 11/23/2017] [Indexed: 11/23/2022] Open
Abstract
Cyclic peptides are cyclic compounds formed mainly by the amide bonds between either proteinogenic or non-proteinogenic amino acids. This review highlights the occurrence, structures and biological activities of fungal cyclic peptides (excluding cyclodipeptides, and peptides containing ester bonds in the core ring) reported until August 2017. About 293 cyclic peptides belonging to the groups of cyclic tri-, tetra-, penta-, hexa-, hepta-, octa-, nona-, deca-, undeca-, dodeca-, tetradeca-, and octadecapeptides as well as cyclic peptides containing ether bonds in the core ring have been isolated from fungi. They were mainly isolated from the genera Aspergillus, Penicillium, Fusarium, Acremonium and Amanita. Some of them were screened to have antimicrobial, antiviral, cytotoxic, phytotoxic, insecticidal, nematicidal, immunosuppressive and enzyme-inhibitory activities to show their potential applications. Some fungal cyclic peptides such as the echinocandins, pneumocandins and cyclosporin A have been developed as pharmaceuticals.
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Affiliation(s)
- Xiaohan Wang
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Minyi Lin
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Dan Xu
- 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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Lacey HJ, Vuong D, Pitt JI, Lacey E, Piggott AM. Kumbicins A–D: Bis-Indolyl Benzenoids and Benzoquinones from an Australian Soil Fungus, Aspergillus kumbius. Aust J Chem 2016. [DOI: 10.1071/ch15488] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A soil survey conducted in southern Queensland, Australia, identified a novel isolate belonging to the genus Aspergillus subgenus Circumdati section Circumdati, Aspergillus kumbius FRR6049. Cultivation and fractionation of secondary metabolites from A. kumbius revealed a unique chemotype comprising three new bis-indolyl benzenoids, kumbicins A–C, and a new bis-indolyl benzoquinone, kumbicin D, along with the previously reported compounds asterriquinol D dimethyl ether, petromurins C and D, aspochracin, its N-demethyl analogue JBIR-15, and neohydroxyaspergillic acid. The structures of kumbicins A–D were assigned by detailed spectroscopic analysis. Kumbicin C was found to inhibit the growth of mouse myeloma cells (IC50 0.74 μg mL–1) and the Gram-positive bacterium Bacillus subtilis (MIC 1.6 μg mL–1).
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Wu QX, Jin XJ, Draskovic M, Crews MS, Tenney K, Valeriote FA, Yao XJ, Crews P. Unraveling the Numerous Biosynthetic Products of the Marine Sediment-Derived Fungus, Aspergillus insulicola. PHYTOCHEMISTRY LETTERS 2012; 5:114-117. [PMID: 22368725 PMCID: PMC3285095 DOI: 10.1016/j.phytol.2011.11.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A new tripeptide, pre-sclerotiotide F (3), was isolated from a marine sediment-derived fungus, Aspergillus insulicola, along with five known compounds, one of which was new at the time of isolation, scerotiotide F (4). The absolute configuration elucidation of the new compound was determined using a combination of NMR, HR-ESI-MS, and optical rotation analyses. Cytotoxicities were measured in vitro against selected cancer cells. The effects of pre-sclerotiotide F (3) and sclerotiotide F (4) on LPS-induced NF-κB and iNOS expression were also measured.
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Affiliation(s)
- Q. X. Wu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
- Department of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California 95064, United States
| | - X. J. Jin
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - M. Draskovic
- Department of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California 95064, United States
| | - M. S. Crews
- Department of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California 95064, United States
| | - K. Tenney
- Department of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California 95064, United States
| | - F. A. Valeriote
- Department of Internal Medicine, Division of Hematology and Oncology, Henry Ford Health System, Detroit, Michigan 48202, United States
| | - X. J. Yao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - P. Crews
- Department of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California 95064, United States
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Zheng J, Xu Z, Wang Y, Hong K, Liu P, Zhu W. Cyclic tripeptides from the halotolerant fungus Aspergillus sclerotiorum PT06-1. JOURNAL OF NATURAL PRODUCTS 2010; 73:1133-1137. [PMID: 20503985 DOI: 10.1021/np100198h] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Eleven new aspochracin-type cyclic tripeptides, sclerotiotides A-K (1-11), together with three known compounds, JBIR-15 (12), aspochracin (13), and penicillic acid, were isolated from the ethyl acetate extract of the fermentation broth of the halotolerant Aspergillus sclerotiorum PT06-1 in a hypersaline nutrient-rich medium. Their structures were elucidated by spectroscopic analysis and chemical methods. Chemical transformations of 12 and 13 proved that sclerotiotides D-K (4-11) were artifacts probably formed during the fermentation or subsequent isolation steps. All 13 cyclic tripeptides have been evaluated for their antimicrobial and cytotoxic effects. Only sclerotiotides A (1), B (2), F (6), and I (9) and JBIR-15 (12) showed selective antifungal activity against Candida albicans with MIC values of 7.5, 3.8, 30, 6.7, and 30 microM, respectively.
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Affiliation(s)
- Jinkai Zheng
- 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
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JBIR-15, a new aspochracin derivative, isolated from a sponge-derived fungus, Aspergillus sclerotiorum Huber Sp080903f04. Biosci Biotechnol Biochem 2009; 73:1898-900. [PMID: 19661713 DOI: 10.1271/bbb.90228] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In the course of our chemical screening program for novel metabolites by LC-MS monitoring, we isolated a new aspochracin derivative, JBIR-15 (1), together with aspochracin, from the culture broth of a sponge-derived fungus, Aspergillus sclerotiorum Huber Sp080903f04. The structure of 1 was determined to be N-demethyl aspochracin at the alanyl residue on the basis of extensive NMR and MS analyses.
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Nedvěd J, Sulc M, Jegorov A, Giannakopulos A, Havlicek V. Application of Fungal Cyclic Peptides and Metabolites. Clin Proteomics 2008. [DOI: 10.1002/9783527622153.ch27] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Tantry SJ, Venkataramanarao R, Chennakrishnareddy G, Sureshbabu VV. Total Synthesis of Cyclosporin O by Convergent Approach Employing Fmoc-Amino Acid Chlorides Mediated by Zinc Dust. J Org Chem 2007; 72:9360-3. [DOI: 10.1021/jo701329w] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Subramanyam J Tantry
- Department of Studies in Chemistry, Central College Campus, Bangalore University, Bangalore 560 001, India
| | - Rao Venkataramanarao
- Department of Studies in Chemistry, Central College Campus, Bangalore University, Bangalore 560 001, India
| | - Gundala Chennakrishnareddy
- Department of Studies in Chemistry, Central College Campus, Bangalore University, Bangalore 560 001, India
| | - Vommina Venkata Sureshbabu
- Department of Studies in Chemistry, Central College Campus, Bangalore University, Bangalore 560 001, India
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Jegorov A, Hajduch M, Sulc M, Havlicek V. Nonribosomal cyclic peptides: specific markers of fungal infections. JOURNAL OF MASS SPECTROMETRY : JMS 2006; 41:563-76. [PMID: 16770826 DOI: 10.1002/jms.1042] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Some cyclic peptides and depsipeptides are synthesized in microorganisms by large multienzymes called nonribosomal peptide synthetases. The structures of peptide products originating in this way are complex and diverse and are microorganism-specific. This work proposes the use of fungal cyclic peptides and depsipeptides as extremely specific markers of fungal infections. Since a reliable molecular tool for diagnosing fungal infections at an early stage is still missing, we present mass spectrometry as a new, modern, broadband (with respect to fungal strain) and specific tool for clinical mycologists. More than 40 different fungal species can be rapidly characterized according to specific families of cyclic peptides, and in some cases, a particular fungal strain can be identified on the basis of its cyclopeptide profile. This paper is also aimed at initiating discussion on the biological role of these secondary metabolites, especially of those synthesized by medically important strains. Proven cytotoxic, anti-inflammatory or immunosuppressive activities of some cyclic peptides indicate that these molecules may contribute to the synergistic array of fungal virulence factors and support microbial invasion during fungal infection. In addition to an overview on recent mass spectrometric protocols for cyclic peptide sequencing, the structures of new peptides from Paecilomyces and Pseudallescheria are presented.
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Affiliation(s)
- Alexandr Jegorov
- IVAX Pharmaceuticals, Branisovska 31, CZ-370 05 Ceske Budejovice, Czech Republic
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Humphrey JM, Chamberlin AR. Chemical Synthesis of Natural Product Peptides: Coupling Methods for the Incorporation of Noncoded Amino Acids into Peptides. Chem Rev 1997; 97:2243-2266. [PMID: 11848900 DOI: 10.1021/cr950005s] [Citation(s) in RCA: 892] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- John M. Humphrey
- Department of Chemistry, University of California, Irvine, California 92717
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Abstract
The role of bioassay in the diagnosis of mycotoxicoses in farm animals is discussed. Methods for detecting mycotoxin contamination of animal feeds using biological species (aquatic and terrestrial animals and plants but excluding bacteria and yeast) are reviewed. Factors that need to be considered when choosing and using particular bioassay procedures in a feed-screening programme are discussed in relation to the occurrence of false positives and false negatives.
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Affiliation(s)
- S Panigrahi
- Natural Resources Institute, Chatham Maritime, Kent, UK
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Keeley LL, Hayes TK. Speculations on biotechnology applications for insect neuroendocrine research. ACTA ACUST UNITED AC 1987. [DOI: 10.1016/0020-1790(87)90031-x] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wenger RM. Synthesis of Cyclosporine. Part II. Synthesis of Boc-D-Ala-MeLeu-MeLeu-MeVal-OH, a part of the peptide sequence of cyclosporine, by different strategic ways and synthesis of its isomers Boc-D-Ala-MeLeu-D-MeLeu-MeVal-OH, Boc-D-MeLeu-DMeVal-OH, and Boc-D-Ala-MeLeu-MeLeu-D-MeVal-OH as reference compounds. Helv Chim Acta 1983. [DOI: 10.1002/hlca.19830660836] [Citation(s) in RCA: 65] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Doster RC, Arscott GH, Sinnhuber RO. Comparative toxicity of ochratoxin A and crude Aspergillus ochraceus culture extract in Japanese quail (Coturnix coturnix japonica). Poult Sci 1973; 52:2351-3. [PMID: 4789009 DOI: 10.3382/ps.0522351] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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Abstract
A screen of fungi for insecticidal activity revealed the ability of Aspergillus versicolor to make versimide, methyl-alpha-(methylsuccinimido)acrylate, a novel contact insecticide. The larvicidal activities of Alternaria tenuis and Fusarium lateritium were found to be due to tenuazonic acid and diacetoxyscirpenol, respectively. Thiolutin, cycloheximide, rubratoxin, patulin, trichothecin, an actinomycin, and scirpene-producing fungi also had insecticidal activity.
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