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Martian PC, Tertis M, Leonte D, Hadade N, Cristea C, Crisan O. Cyclic peptides: A powerful instrument for advancing biomedical nanotechnologies and drug development. J Pharm Biomed Anal 2024; 252:116488. [PMID: 39388867 DOI: 10.1016/j.jpba.2024.116488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2024] [Revised: 09/05/2024] [Accepted: 09/26/2024] [Indexed: 10/12/2024]
Abstract
Cyclic peptides have emerged as an essential tool in the advancement of biomedical nanotechnologies, offering unique structural and functional advantages over linear peptides. This review article aims to highlight the roles of cyclic peptides in the development of biomedical fields, with a particular focus on their application in drug discovery and delivery. Cyclic peptides exhibit exceptional stability, bioavailability, and binding specificity, making them ideal candidates for therapeutic and diagnostic applications. We explore the synthesis and design strategies that enable the precise control of cyclic peptide structures, leading to enhanced performance in targeting specific cellular pathways. The article also highlights recent breakthroughs in the use of cyclic peptides for creating innovative drug delivery systems, including nanoparticle conjugates and peptide-drug conjugates, which have shown promise in improving the efficacy and safety profiles of existing traditional treatments. The integration of cyclic peptides into nanotechnological frameworks holds significant promise for addressing unmet medical needs, providing a foundation for future advancements in personalized medicine and targeted drug delivery.
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Affiliation(s)
- Paul Cristian Martian
- Department of Analytical Chemistry, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, 4 Pasteur Street, Cluj-Napoca 400021, Romania
| | - Mihaela Tertis
- Department of Analytical Chemistry, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, 4 Pasteur Street, Cluj-Napoca 400021, Romania
| | - Denisa Leonte
- Department of Organic Chemistry, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, 28 Victor Babes Street, Cluj-Napoca 400023, Romania
| | - Niculina Hadade
- Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Babes Bolyai University, 11 Arany Janos Street, Cluj-Napoca 400028, Romania
| | - Cecilia Cristea
- Department of Analytical Chemistry, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, 4 Pasteur Street, Cluj-Napoca 400021, Romania.
| | - Ovidiu Crisan
- Department of Organic Chemistry, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, 28 Victor Babes Street, Cluj-Napoca 400023, Romania
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2
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Liang X, Yang JF, Huang ZH, Ma X, Yan Y, Qi SH. New Antibacterial Peptaibiotics against Plant and Fish Pathogens from the Deep-Sea-Derived Fungus Simplicillium obclavatum EIODSF 020. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:6402-6413. [PMID: 38491989 DOI: 10.1021/acs.jafc.4c00493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2024]
Abstract
Bacterial diseases could severely harm agricultural production. To develop new antibacterial agents, the secondary metabolites of a deep-sea-derived fungus Simplicillium obclavatum EIODSF 020 with antibacterial activities against plant and fish pathogens were investigated by a bioassay-guided approach, which led to the isolation of 11 new peptaibiotics, simplicpeptaibs A-K (1-11). They contain 16-19 residues, including β-alanine, tyrosine, or tyrosine O-sulfate, that were rarely present in peptaibiotics. Their structures were elucidated by spectroscopic analyses (NMR, HRMS, HRMS2, and ECD) and Marfey's method. The primary and secondary structures of novel sulfated peptaibiotic 9 were reconfirmed by single-crystal X-ray diffraction analysis. Genome sequencing of S. obclavatum EIODSF 020 allowed the detection of a gene cluster encoding two individual NRPSs (totally containing 19 modules) that was closely related to simplicpeptaib biosynthesis. Antibacterial investigations of 1-11 together with the previously isolated linear and cyclic peptides from this strain suggested the antibacterial property of this fungus was attributed to the peptaibiotics and cyclic lipopeptides. Among them, compounds 4, 6, 7, and 9 showed significant activity against the tobacco pathogen Ralstonia solanacearum or tilapia pathogens Streptococcus iniae and Streptococcus agalactiae. The antibacterial activity of 6 against R. solanacearum could be enhanced by the addition of 1% NaCl. The structure-bioactivity relationship of simplicpeptaibs was discussed.
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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, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Jia-Fan 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
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhong-Hui Huang
- 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
| | - Xuan Ma
- 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
| | - Yan Yan
- 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
| | - Shu-Hua Qi
- 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
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3
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Lee MF, Anasir MI, Poh CL. Serum Stabilities and Antiviral Activities of Chemically Modified Peptides Against Dengue Serotypes 1-4. J Pharm Sci 2024; 113:587-595. [PMID: 38103687 DOI: 10.1016/j.xphs.2023.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 12/09/2023] [Accepted: 12/09/2023] [Indexed: 12/19/2023]
Abstract
Dengue presents a major public health concern in over 100 countries due to the absence of an effective vaccine and antiviral therapy against all four dengue virus (DENV) serotypes. Several antiviral peptides were previously reported to inhibit at least three or all four DENV serotypes. Chemical modifications such as d-amino acid substitutions, polyethylene glycol (PEG)ylation, and cyclization could be applied to peptides to improve their biological activities and stability in serum. The PEGylated peptide 3 (PEG-P3) was identified to be the most promising antiviral candidate as it demonstrated good inhibitory effects against all four DENV serotypes during the pre- and post-infection stages, Based on the RP-HPLC and LC/MS analysis, peptide 4 was identified to be more stable in human serum than peptide 3, with 78.9 % and 41.6 % of the peptides remaining after 72 h of incubation in human serum, respectively. Both peptides were also able to retain their antiviral activities against specific DENV serotypes after 72 h incubation in human serum. PEG-P3 was found to be more stable than the unmodified peptide 3 with 89.4 % of PEG-P3 remaining in the human serum after 72 h of incubation. PEG-P3 was able to retain its inhibitory effects against DENV-1 to 4 after 72 h of incubation in human serum. This study provided insights into the antiviral activities and stabilities of the unmodified and chemically modified peptides in human serum.
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Affiliation(s)
- Michelle Felicia Lee
- Centre for Virus and Vaccine Research, School of Medical and Life Sciences, Sunway University, 5, Jalan Universiti, Bandar Sunway, Selangor 47500, Malaysia
| | - Mohd Ishtiaq Anasir
- Virology Unit, Infectious Disease Research Centre, Institute for Medical Research, National Institutes of Health, Setia Alam, Shah Alam, Selangor Malaysia
| | - Chit Laa Poh
- Centre for Virus and Vaccine Research, School of Medical and Life Sciences, Sunway University, 5, Jalan Universiti, Bandar Sunway, Selangor 47500, Malaysia.
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4
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Hao C, Xu Z, Xu C, Yao R. Anti-herpes simplex virus activities and mechanisms of marine derived compounds. Front Cell Infect Microbiol 2024; 13:1302096. [PMID: 38259968 PMCID: PMC10800978 DOI: 10.3389/fcimb.2023.1302096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 12/20/2023] [Indexed: 01/24/2024] Open
Abstract
Herpes simplex virus (HSV) is the most widely prevalent herpes virus worldwide, and the herpetic encephalitis and genital herpes caused by HSV infection have caused serious harm to human health all over the world. Although many anti-HSV drugs such as nucleoside analogues have been ap-proved for clinical use during the past few decades, important issues, such as drug resistance, toxicity, and high cost of drugs, remain unresolved. Recently, the studies on the anti-HSV activities of marine natural products, such as marine polysaccharides, marine peptides and microbial secondary metabolites are attracting more and more attention all over the world. This review discusses the recent progress in research on the anti-HSV activities of these natural compounds obtained from marine organisms, relating to their structural features and the structure-activity relationships. In addition, the recent findings on the different anti-HSV mechanisms and molecular targets of marine compounds and their potential for therapeutic application will also be summarized in detail.
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Affiliation(s)
- Cui Hao
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zhongqiu Xu
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, China
- Key Laboratory of Marine Drugs of Ministry of Education, Ocean University of China, Qingdao, China
| | - Can Xu
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, China
- Key Laboratory of Marine Drugs of Ministry of Education, Ocean University of China, Qingdao, China
| | - Ruyong Yao
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, China
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5
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Jiang X, Gao L, Li Z, Shen Y, Lin ZH. Development and Challenges of Cyclic Peptides for Immunomodulation. Curr Protein Pept Sci 2024; 25:353-375. [PMID: 37990433 DOI: 10.2174/0113892037272528231030074158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 09/12/2023] [Accepted: 09/15/2023] [Indexed: 11/23/2023]
Abstract
Cyclic peptides are polypeptide chains formed by cyclic sequences of amide bonds between protein-derived or non-protein-derived amino acids. Compared to linear peptides, cyclic peptides offer several unique advantages, such as increased stability, stronger affinity, improved selectivity, and reduced toxicity. Cyclic peptide has been proved to have a promising application prospect in the medical field. In addition, this paper mainly describes that cyclic peptides play an important role in anti-cancer, anti-inflammatory, anti-virus, treatment of multiple sclerosis and membranous nephropathy through immunomodulation. In order to know more useful information about cyclic peptides in clinical research and drug application, this paper also summarizes cyclic peptides currently in the clinical trial stage and cyclic peptide drugs approved for marketing in the recent five years. Cyclic peptides have many advantages and great potential in treating various diseases, but there are still many challenges to be solved in the development process of cyclic peptides.
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Affiliation(s)
- Xianqiong Jiang
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 405400 Chongqing, China
| | - Li Gao
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 405400 Chongqing, China
| | - Zhilong Li
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 405400 Chongqing, China
| | - Yan Shen
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 405400 Chongqing, China
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing 400054, China
- Chongqing Key Laboratory of Target Based Drug Screening and Activity Evaluation, Chongqing University of Technology, Chongqing 400054, China
| | - Zhi-Hua Lin
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 405400 Chongqing, China
- Chongqing College of Traditional Chinese Medicine, 402760
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing 400054, China
- Chongqing Key Laboratory of Target Based Drug Screening and Activity Evaluation, Chongqing University of Technology, Chongqing 400054, China
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Tan M, Xu X, Zhang W, Wu F, Bo X, Qin F, Ju S, Song Z, Yang T, Li J, Huang X. Isolation and insecticidal activities of new cyclic peptides from mangrove endophytic fungus Aspergillus sp. GXNU-4QQY1a. Fitoterapia 2023; 171:105693. [PMID: 37769999 DOI: 10.1016/j.fitote.2023.105693] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/12/2023] [Accepted: 09/23/2023] [Indexed: 10/02/2023]
Abstract
An investigation on bioactive metabolites from the mangrove endophytic fungus Aspergillus sp. GXNU-4QQY1a led to the isolation of two undescribed cyclic peptides, guaspertide A (1) and guaspertide B (2), together with six known compounds, 3-8. These structures and the new compounds' absolute configuration were determined by mass spectrometry analysis, nuclear magnetic resonance spectrum, electronic circular dichroism, and single-crystal X-ray diffraction. Insecticidal assays were carried out with compounds 1-8, and the results showed that compounds 1-3 and 8 exhibited good insecticidal activity against citrus psyllids.
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Affiliation(s)
- Meijing Tan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Xia Xu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Wenxiu Zhang
- Guangxi Key Laboratory of Sericulture Ecology and Applied Intelligent Technology, Hechi University, Hechi 546300, China
| | - Furong Wu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Xianglong Bo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Feng Qin
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Shichao Ju
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Zishuo Song
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Tingmi Yang
- Guangxi Academy of Specialty Crops, Guangxi Laboratory of Germplasm Innovation and Utilization of Specialty Commercial Crops in North Guangxi, Guilin 541004, China.
| | - Jun Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Xishan Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China.
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7
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Zhao JH, Wang YW, Yang J, Tong ZJ, Wu JZ, Wang YB, Wang QX, Li QQ, Yu YC, Leng XJ, Chang L, Xue X, Sun SL, Li HM, Ding N, Duan JA, Li NG, Shi ZH. Natural products as potential lead compounds to develop new antiviral drugs over the past decade. Eur J Med Chem 2023; 260:115726. [PMID: 37597436 DOI: 10.1016/j.ejmech.2023.115726] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/22/2023] [Accepted: 08/13/2023] [Indexed: 08/21/2023]
Abstract
Virus infection has been one of the main causes of human death since the ancient times. Even though more and more antiviral drugs have been approved in clinic, long-term use can easily lead to the emergence of drug resistance and side effects. Fortunately, there are many kinds of metabolites which were produced by plants, marine organisms and microorganisms in nature with rich structural skeletons, and they are natural treasure house for people to find antiviral active substances. Aiming at many types of viruses that had caused serious harm to human health in recent years, this review summarizes the natural products with antiviral activity that had been reported for the first time in the past ten years, we also sort out the source, chemical structure and safety indicators in order to provide potential lead compounds for the research and development of new antiviral drugs.
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Affiliation(s)
- Jing-Han Zhao
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - Yue-Wei Wang
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - Jin Yang
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - Zhen-Jiang Tong
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - Jia-Zhen Wu
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - Yi-Bo Wang
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - Qing-Xin Wang
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - Qing-Qing Li
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - Yan-Cheng Yu
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - Xue-Jiao Leng
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - Liang Chang
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - Xin Xue
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - Shan-Liang Sun
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - He-Min Li
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - Ning Ding
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu, 210023, China.
| | - Jin-Ao Duan
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu, 210023, China.
| | - Nian-Guang Li
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu, 210023, China.
| | - Zhi-Hao Shi
- Laboratory of Molecular Design and Drug Discovery, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu, 211198, China.
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8
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Paquette AR, Boddy CN. Macrocyclization strategies for the total synthesis of cyclic depsipeptides. Org Biomol Chem 2023; 21:8043-8053. [PMID: 37750186 DOI: 10.1039/d3ob01229h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
Cyclic depsipeptides are an important class of peptide natural products that are defined by the presence of ester and amide bonds within the macrocycle. The structural diversity of depsipeptides has required the development of a broad range of synthetic strategies to access these biologically active compounds. Solid phase peptide synthesis (SPPS) strategies have been an invaluable tool in their synthesis. The key aspect of their synthesis is the macrocyclization strategy. Three main strategies are used, solution phase macrolactamization of acyclic ester containing peptide, on-resin macrolactamization of a sidechain-anchored peptide, and the solution phase macrolactonization of a linear peptide. Additionally, biocatalysts have been used to produce these compounds in a regio- and chemo-selective manner. Each compound offers unique challenges, requiring careful synthetic design to avoid undesirable side reactivity or unwanted epimerization during the esterification and macrocyclizing steps. This focused review analyzes these three strategies for cyclic depsipeptide natural product total synthesis with selected examples from the literature between 2001-2023.
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Affiliation(s)
- André R Paquette
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, ON, K1N 6N5, Canada.
| | - Christopher N Boddy
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, ON, K1N 6N5, Canada.
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9
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Yao FH, Liang X, Qi SH. Two new linear peptides from the marine-derived fungus Penicillium sp. SCSIO 41512. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2023; 25:941-948. [PMID: 36916424 DOI: 10.1080/10286020.2023.2189107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 03/06/2023] [Accepted: 03/06/2023] [Indexed: 06/18/2023]
Abstract
Two new linear peptides, penicamides A and B (1 and 2), together with four known analogous were isolated from the extracts of the marine-derived fungus Penicillium sp. SCSIO 41512. Their structures were elucidated by analysis of 1D/2D NMR data and HRESI-MS. Their absolute configurations were established by Marfey's methods and quantum chemical calculations.
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Affiliation(s)
- Fei-Hua Yao
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao Liang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Shu-Hua Qi
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
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10
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Zhang W, Forester NT, Chettri P, Heilijgers M, Mace WJ, Maes E, Morozova Y, Applegate ER, Johnson RD, Johnson LJ. Characterization of the Biosynthetic Gene Cluster for the Ribosomally Synthesized Cyclic Peptide Epichloëcyclins in Epichloë festucae. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:13965-13978. [PMID: 37704203 PMCID: PMC10540207 DOI: 10.1021/acs.jafc.3c03073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 08/14/2023] [Accepted: 08/16/2023] [Indexed: 09/15/2023]
Abstract
The various grass-induced epichloëcyclins of the Epichloë spp. are ribosomally synthesized and post-translationally modified peptides (RiPPs), produced as small, secreted cyclopeptides from a single gene, gigA. Here, four clustered and coregulated genes (gigA, gigB, gigC, and kexB) with predicted roles in epichloëcyclin production in Epichloë festucae were evaluated through gene disruption. Subsequent chemical analysis indicates that GigB is a DUF3328 domain-containing protein associated with cyclization of epichloëcyclins; GigC is a methyltransferase enzyme responsible for N-methylation of desmethylepichloëcyclins; and KexB is a subtilisin-like enzyme, partly responsible for the propeptide cleavage of epichloëcyclin intermediates. Symbiotic effects on the host phenotype were not observed for gigA, gigC, or kexB mutants, although ΔgigB infection correlated with increased host tiller height and biomass, while only ΔkexB exhibited an effect on endophyte morphology. Disrupting epichloëcyclin biosynthesis showed negligible influence on the biosynthesis of E. festucae-associated alkaloids. Epichloëcyclins may perform other secondary metabolism functions in Epichloë and other fungi.
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Affiliation(s)
- Wei Zhang
- Grasslands
Research Centre, AgResearch Limited, Palmerston North 4442, New Zealand
| | - Natasha T. Forester
- Grasslands
Research Centre, AgResearch Limited, Palmerston North 4442, New Zealand
| | - Pranav Chettri
- Grasslands
Research Centre, AgResearch Limited, Palmerston North 4442, New Zealand
| | - Maurice Heilijgers
- Grasslands
Research Centre, AgResearch Limited, Palmerston North 4442, New Zealand
| | - Wade J. Mace
- Grasslands
Research Centre, AgResearch Limited, Palmerston North 4442, New Zealand
| | - Evelyne Maes
- Lincoln
Research Centre, AgResearch Limited, Lincoln 7608, New Zealand
| | - Yulia Morozova
- Grasslands
Research Centre, AgResearch Limited, Palmerston North 4442, New Zealand
| | - Emma R. Applegate
- Grasslands
Research Centre, AgResearch Limited, Palmerston North 4442, New Zealand
| | - Richard D. Johnson
- Grasslands
Research Centre, AgResearch Limited, Palmerston North 4442, New Zealand
| | - Linda J. Johnson
- Grasslands
Research Centre, AgResearch Limited, Palmerston North 4442, New Zealand
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11
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Hafez Ghoran S, Taktaz F, Sousa E, Fernandes C, Kijjoa A. Peptides from Marine-Derived Fungi: Chemistry and Biological Activities. Mar Drugs 2023; 21:510. [PMID: 37888445 PMCID: PMC10608792 DOI: 10.3390/md21100510] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/16/2023] [Accepted: 09/24/2023] [Indexed: 10/28/2023] Open
Abstract
Marine natural products are well-recognized as potential resources to fill the pipeline of drug leads to enter the pharmaceutical industry. In this circumstance, marine-derived fungi are one of the unique sources of bioactive secondary metabolites due to their capacity to produce diverse polyketides and peptides with unique structures and diverse biological activities. The present review covers the peptides from marine-derived fungi reported from the literature published from January 1991 to June 2023, and various scientific databases, including Elsevier, ACS publications, Taylor and Francis, Wiley Online Library, MDPI, Springer, Thieme, Bentham, ProQuest, and the Marine Pharmacology website, are used for a literature search. This review focuses on chemical characteristics, sources, and biological and pharmacological activities of 366 marine fungal peptides belonging to various classes, such as linear, cyclic, and depsipeptides. Among 30 marine-derived fungal genera, isolated from marine macro-organisms such as marine algae, sponges, coral, and mangrove plants, as well as deep sea sediments, species of Aspergillus were found to produce the highest number of peptides (174 peptides), followed by Penicillium (23 peptides), Acremonium (22 peptides), Eurotium (18 peptides), Trichoderma (18 peptides), Simplicillium (17 peptides), and Beauveria (12 peptides). The cytotoxic activity against a broad spectrum of human cancer cell lines was the predominant biological activity of the reported marine peptides (32%), whereas antibacterial, antifungal, antiviral, anti-inflammatory, and various enzyme inhibition activities ranged from 7% to 20%. In the first part of this review, the chemistry of marine peptides is discussed and followed by their biological activity.
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Affiliation(s)
- Salar Hafez Ghoran
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan;
| | - Fatemeh Taktaz
- Department of Advanced Medical and Surgical Sciences, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy;
| | - Emília Sousa
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto and CIIMAR, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal; (E.S.); (C.F.)
| | - Carla Fernandes
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto and CIIMAR, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal; (E.S.); (C.F.)
| | - Anake Kijjoa
- ICBAS—Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto and CIIMAR, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
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12
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Helmy NM, Parang K. Cyclic Peptides with Antifungal Properties Derived from Bacteria, Fungi, Plants, and Synthetic Sources. Pharmaceuticals (Basel) 2023; 16:892. [PMID: 37375840 DOI: 10.3390/ph16060892] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/13/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
Fungal infections remain a significant concern for human health. The emergence of microbial resistance, the improper use of antimicrobial drugs, and the need for fewer toxic antifungal treatments in immunocompromised patients have sparked substantial interest in antifungal research. Cyclic peptides, classified as antifungal peptides, have been in development as potential antifungal agents since 1948. In recent years, there has been growing attention from the scientific community to explore cyclic peptides as a promising strategy for combating antifungal infections caused by pathogenic fungi. The identification of antifungal cyclic peptides from various sources has been possible due to the widespread interest in peptide research in recent decades. It is increasingly important to evaluate narrow- to broad-spectrum antifungal activity and the mode of action of synthetic and natural cyclic peptides for both synthesized and extracted peptides. This short review aims to highlight some of the antifungal cyclic peptides isolated from bacteria, fungi, and plants. This brief review is not intended to present an exhaustive catalog of all known antifungal cyclic peptides but rather seeks to showcase selected cyclic peptides with antifungal properties that have been isolated from bacteria, fungi, plants, and synthetic sources. The addition of commercially available cyclic antifungal peptides serves to corroborate the notion that cyclic peptides can serve as a valuable source for the development of antifungal drugs. Additionally, this review discusses the potential future of utilizing combinations of antifungal peptides from different sources. The review underscores the need for the further exploration of the novel antifungal therapeutic applications of these abundant and diverse cyclic peptides.
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Affiliation(s)
- Naiera M Helmy
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA
- Microbial Biotechnology Department, Biotechnology Research Institute, National Research Centre, Giza 3751134, Egypt
| | - Keykavous Parang
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA
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13
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Yoshida K, Ueno T, Koito K, Hu D, Yamaguchi A. A Comparative Study on Fungal Diversity in Organic and Conventionally Cultivated Lemons During Accelerated Storage. Curr Microbiol 2023; 80:69. [PMID: 36609598 DOI: 10.1007/s00284-022-03164-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 12/23/2022] [Indexed: 01/08/2023]
Abstract
There has been a growing interest in organic farming as a countermeasure to the environmental burden caused by chemical pesticides. We analyzed and compared the fungal diversity of lemon fruits from organic and conventional cultivation by automated rRNA intergenic spacer analysis (ARISA), accompanied by isolation of cultured colonies and metagenomic analysis. Lemon peels were cut out and subjected to the analyses at purchase and after accelerated storage at 28 °C. The organic lemons did not decay even after 14 weeks, while most of the conventional lemons did decay. The fungal colony counts were not significantly different, although the number of fungal species together with the Shannon index, considering the abundance of each species, clearly showed more diversity in organic lemons than in conventional lemons (p = 0.011). Fusarium sp. (putative F. solani) accounted for as much as 90% of the relative abundance in the decayed conventional lemons. Metagenomic analysis also supported the lack of fungal diversity in conventional lemons. These results may suggest that organic cultivation maintains the diversity of native fungal flora in lemon fruit and could contribute to preventing decay during ambient storage.
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Affiliation(s)
- Kuniko Yoshida
- Department of Food Science and Human Wellness, Rakuno Gakuen University, Midorimachi 582, Bunkyodai, Ebetsu-Shi, Hokkaido, 069-8501, Japan
| | - Takeshi Ueno
- Department of Food Science and Human Wellness, Rakuno Gakuen University, Midorimachi 582, Bunkyodai, Ebetsu-Shi, Hokkaido, 069-8501, Japan
| | - Kentaro Koito
- Department of Sustainable Agriculture, Rakuno Gakuen University, Midorimachi 582, Bunkyodai, Ebetsu-Shi, Hokkaido, 069-8501, Japan
| | - Dagula Hu
- Department of Food Science and Human Wellness, Rakuno Gakuen University, Midorimachi 582, Bunkyodai, Ebetsu-Shi, Hokkaido, 069-8501, Japan
| | - Akihiro Yamaguchi
- Department of Food Science and Human Wellness, Rakuno Gakuen University, Midorimachi 582, Bunkyodai, Ebetsu-Shi, Hokkaido, 069-8501, Japan.
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14
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Abstract
In the design and development of therapeutic agents, macromolecules with restricted structures have stronger competitive edges than linear biological entities since cyclization can overcome the limitations of linear structures. The common issues of linear peptides include susceptibility to degradation of the peptidase enzyme, off-target effects, and necessity of routine dosing, leading to instability and ineffectiveness. The unique conformational constraint of cyclic peptides provides a larger surface area to interact with the target at the same time, improving the membrane permeability and in vivo stability compared to their linear counterparts. Currently, cyclic peptides have been reported to possess various activities, such as antifungal, antiviral and antimicrobial activities. To date, there is emerging interest in cyclic peptide therapeutics, and increasing numbers of clinically approved cyclic peptide drugs are available on the market. In this review, the medical significance of cyclic peptides in the defence against viral infections will be highlighted. Except for chikungunya virus, which lacks specific antiviral treatment, all the viral diseases targeted in this review are those with effective treatments yet with certain limitations to date. Thus, strategies and approaches to optimise the antiviral effect of cyclic peptides will be discussed along with their respective outcomes. Apart from isolated naturally occurring cyclic peptides, chemically synthesized or modified cyclic peptides with antiviral activities targeting coronavirus, herpes simplex viruses, human immunodeficiency virus, Ebola virus, influenza virus, dengue virus, five main hepatitis viruses, termed as type A, B, C, D and E and chikungunya virus will be reviewed herein. Graphical Abstract
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15
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Antifungal Activity and Biocontrol Potential of Simplicillium lamellicola JC-1 against Multiple Fungal Pathogens of Oilseed Rape. J Fungi (Basel) 2022; 9:jof9010057. [PMID: 36675878 PMCID: PMC9860836 DOI: 10.3390/jof9010057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 12/26/2022] [Accepted: 12/27/2022] [Indexed: 12/31/2022] Open
Abstract
A fungal strain (JC-1) of Simplicillium was isolated from a pod of oilseed rape (Brassica napus) infested with the blackleg pathogen Leptosphaeria biglobosa. This study was done to clarify its taxonomic identity using morphological and molecular approaches, to characterize its antifungal activity through bioassays and genome-based identification of antifungal metabolites, and to determine its efficacy in inducing systemic resistance (ISR) in oilseed rape. The results showed that JC-1 belongs to Simplicillium lamellicola. It displayed a strong antagonistic relationship with L. biglobosa, Botrytis cinerea (gray mold) and Sclerotinia sclerotiorum (stem rot). The cultural filtrates of JC-1 showed a high efficacy in suppressing infection by S. sclerotiorum on detached leaves of oilseed rape. Genome analysis indicated that JC-1 has the capability of producing multiple antifungal metabolites, including aureobasidin A1, squalestatin S1 and verlamelin. Inoculation of JC-1 on seeds of oilseed rape caused a suppressive effect on infection by L. biglobosa on the cotyledons of the resulting seedlings, suggesting that JC-1 can trigger ISR. Endophytic growth, accumulation of anthocyanins, up-regulated expression of CHI (for chalcone isomerase) and PR1 (for pathogenesis-related protein 1), and down-regulated expression of NECD3 (for 9-cis-epoxycarotenoid dioxygenase) were detected to be associated with the ISR. This study provided new insights into the biocontrol potential and modes of action of S. lamellicola.
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16
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Hsueh SCC, Aina A, Plotkin SS. Ensemble Generation for Linear and Cyclic Peptides Using a Reservoir Replica Exchange Molecular Dynamics Implementation in GROMACS. J Phys Chem B 2022; 126:10384-10399. [PMID: 36410027 DOI: 10.1021/acs.jpcb.2c05470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The profile of shapes presented by a cyclic peptide modulates its therapeutic efficacy and is represented by the ensemble of its sampled conformations. Although some algorithms excel at creating a diverse ensemble of cyclic peptide conformations, they seldom address the entropic contribution of flexible conformations and often have significant practical difficulty producing an ensemble with converged and reliable thermodynamic properties. In this study, an accelerated molecular dynamics (MD) method, namely, reservoir replica exchange MD (R-REMD or Res-REMD), was implemented in GROMACS ver. 4.6.7 and benchmarked on two small cyclic peptide model systems: a cyclized furin cleavage site of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike (cyclo-(CGPRRARSG)) and oxytocin (disulfide-bonded CYIQNCPLG). Additionally, we also benchmarked Res-REMD on alanine dipeptide and Trpzip2 to demonstrate its validity and efficiency over REMD. For Trpzip2, Res-REMD coupled with an umbrella-sampling-derived reservoir generated similar folded fractions as regular REMD but on a much faster time scale. For cyclic peptides, Res-REMD appeared to be marginally faster than REMD in ensemble generation. Finally, Res-REMD was more effective in sampling rare events such as trans to cis peptide bond isomerization. We provide a GitHub page with the modified GROMACS source code for running Res-REMD at https://github.com/PlotkinLab/Reservoir-REMD.
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Affiliation(s)
- Shawn C C Hsueh
- Department of Physics and Astronomy, The University of British Columbia, Vancouver, BCV6T 1Z1, Canada
| | - Adekunle Aina
- Department of Physics and Astronomy, The University of British Columbia, Vancouver, BCV6T 1Z1, Canada
| | - Steven S Plotkin
- Department of Physics and Astronomy, The University of British Columbia, Vancouver, BCV6T 1Z1, Canada.,Genome Science and Technology Program, The University of British Columbia, Vancouver, BCV6T 1Z1, Canada
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17
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Luo J, Liu S, Lu H, Chen Q, Shi Y. A comprehensive review of microorganism-derived cyclic peptides: Bioactive functions and food safety applications. Compr Rev Food Sci Food Saf 2022; 21:5272-5290. [PMID: 36161470 DOI: 10.1111/1541-4337.13038] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/09/2022] [Accepted: 08/21/2022] [Indexed: 01/28/2023]
Abstract
Cyclic peptides possess advanced structural characteristics of stability and play a vital role in medical treatment and agriculture. However, the biological functions of microorganism-derived cyclic peptides (MDCPs) and their applications in food industry were relatively absent. MDCPs are derived from extensive fermented food or soil. In this review, the synthesis approaches and structural characteristics are overviewed, while the interrelationship between bioactivities and functions is emphasized. This review summarizes the bioactivities of MDCPs from in vitro to in vivo, including antimicrobial activities, immune regulation, and antiviral cell activation. Their multiple functions as well as applications during food product processing, packaging, and storage are also comprehensively reviewed. Remarkably, some potential risks and cytotoxicity of MDCPs are also critically discussed. Moreover, future applications of MDCPs in the development of novel food additives and bioengineering materials are organized. Based on this review of native MDCPs, it is noteworthy that expected improvements of synthetic cyclic peptides in bioactive properties present potential valuable applications in future food, including artificial meat.
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Affiliation(s)
- Jiaqi Luo
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Siyu Liu
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Hongyun Lu
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Qihe Chen
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Ying Shi
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
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18
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Chen W, Liang J, Ren X, Zhao J, Han Y, Liang Z. Multigene phylogeny, phylogenetic network, and morphological characterizations reveal four new arthropod-associated Simplicillium species and their evolutional relationship. Front Microbiol 2022; 13:950773. [PMID: 36267186 PMCID: PMC9578668 DOI: 10.3389/fmicb.2022.950773] [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: 05/23/2022] [Accepted: 07/29/2022] [Indexed: 11/25/2022] Open
Abstract
Simplicillium species are widely distributed and commonly found on various substrates. A minority of species are associated with arthropods. A spider-associated species Simplicillium araneae, and three insect-associated species, Simplicillium coleopterorum, Simplicillium guizhouense, and Simplicillium larvatum, are proposed as novel species based on a multi-locus phylogenetic analysis and morphological characteristics. These Simplicillium species completely fit the nutritional model of Hypocreales fungi and could be used as a model to study their evolutionary relationship. A phylogenetic network analysis based on ITS sequences suggests that a host jump was common among Simplicillium species, and S. araneae may have originally come from an insect host and then jumped to a spider host. However, the evolutionary relationship of S. coleopterorum, S. guizhouense, and S. larvatum was not clear in the phylogenetic network and more sequencing information should be added to the network. In addition, strain CBS 101267 was identified as Simplicillium subtropicum.
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Affiliation(s)
- Wanhao Chen
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Jiandong Liang
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Xiuxiu Ren
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Jiehong Zhao
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Yanfeng Han
- Institute of Fungus Resources, Department of Ecology, College of Life Sciences, Guizhou University, Guiyang, China
- *Correspondence: Yanfeng Han
| | - Zongqi Liang
- Institute of Fungus Resources, Department of Ecology, College of Life Sciences, Guizhou University, Guiyang, China
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19
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Guarracino DA, Iannaccone J, Cabrera A, Kancharla S. Harnessing the Therapeutic Potential and Biological Activity of Antiviral Peptides. Chembiochem 2022; 23:e202200415. [PMID: 36075015 DOI: 10.1002/cbic.202200415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/07/2022] [Indexed: 11/09/2022]
Abstract
Peptides are ideal candidates for the development of antiviral therapeutics due to their specificity, chemical diversity and potential for highly potent, safe, molecular interventions. By restricting conformational freedom and flexibility, cyclic peptides frequently increase peptide stability. Viral targets are often very challenging as their evasive strategies for infectivity can preclude standard therapies. In recent years, several peptides from natural sources mitigated an array of viral infections. In parallel, short peptides derived from key viral proteins, modified with chemical groups such as lipids and cell-penetrating sequences, led to highly effective antiviral inhibitor designs. These strategies have been further developed during the recent COVID-19 pandemic caused by the novel coronavirus SARS-CoV-2. Several anti-SARS-CoV-2 peptides are gaining ground in pre-clinical development. Overall, peptides are strong contenders for lead compounds against many life-threatening viruses and may prove to be the key to future efforts revealing viral mechanisms of action and alleviating their effects.
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Affiliation(s)
| | | | | | - Sneha Kancharla
- The College of New Jersey School of Science, Chemistry, UNITED STATES
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20
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Sukmarini L. Antiviral Peptides (AVPs) of Marine Origin as Propitious Therapeutic Drug Candidates for the Treatment of Human Viruses. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27092619. [PMID: 35565968 PMCID: PMC9101517 DOI: 10.3390/molecules27092619] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/03/2022] [Accepted: 04/18/2022] [Indexed: 12/13/2022]
Abstract
The marine environment presents a favorable avenue for potential therapeutic agents as a reservoir of new bioactive natural products. Due to their numerous potential pharmacological effects, marine-derived natural products—particularly marine peptides—have gained considerable attention. These peptides have shown a broad spectrum of biological functions, such as antimicrobial, antiviral, cytotoxic, immunomodulatory, and analgesic effects. The emergence of new virus strains and viral resistance leads to continuing efforts to develop more effective antiviral drugs. Interestingly, antimicrobial peptides (AMPs) that possess antiviral properties and are alternatively regarded as antiviral peptides (AVPs) demonstrate vast potential as alternative peptide-based drug candidates available for viral infection treatments. Hence, AVPs obtained from various marine organisms have been evaluated. This brief review features recent updates of marine-derived AVPs from 2011 to 2021. Moreover, the biosynthesis of this class of compounds and their possible mechanisms of action are also discussed. Selected peptides from various marine organisms possessing antiviral activities against important human viruses—such as human immunodeficiency viruses, herpes simplex viruses, influenza viruses, hepatitis C virus, and coronaviruses—are highlighted herein.
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Affiliation(s)
- Linda Sukmarini
- Research Center for Applied Microbiology, National Research and Innovation Agency (BRIN), Jl. Raya Bogor Km. 46, Cibinong 16911, West Java, Indonesia
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21
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Bacterial hitchhikers derive benefits from fungal housing. Curr Biol 2022; 32:1523-1533.e6. [PMID: 35235767 PMCID: PMC9009100 DOI: 10.1016/j.cub.2022.02.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 10/14/2021] [Accepted: 02/03/2022] [Indexed: 12/21/2022]
Abstract
Fungi and bacteria are ubiquitous constituents of all microbiomes, yet mechanisms of microbial persistence in polymicrobial communities remain obscure. Here, we examined the hypothesis that specialized fungal survival structures, chlamydospores, induced by bacterial lipopeptides serve as bacterial reservoirs. We find that symbiotic and pathogenic gram-negative bacteria from non-endosymbiotic taxa enter and propagate in chlamydospores. Internalized bacteria have higher fitness than planktonic bacteria when challenged with abiotic stress. Further, tri-cultures of Ralstonia solanacearum, Pseudomonas aeruginosa, and Aspergillus flavus reveal the unprecedented finding that chlamydospores are colonized by endofungal bacterial communities. Our work identifies a previously unknown ecological role of chlamydospores, provides an expanded view of microbial niches, and presents significant implications for the persistence of pathogenic and beneficial bacteria.
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22
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Schmidt S, Kildgaard S, Guo H, Beemelmanns C, Poulsen M. The chemical ecology of the fungus-farming termite symbiosis. Nat Prod Rep 2022; 39:231-248. [PMID: 34879123 PMCID: PMC8865390 DOI: 10.1039/d1np00022e] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Indexed: 01/19/2023]
Abstract
Covering: September 1972 to December 2020Explorations of complex symbioses have often elucidated a plethora of previously undescribed chemical compounds that may serve ecological functions in signalling, communication or defence. A case in point is the subfamily of termites that cultivate a fungus as their primary food source and maintain complex bacterial communities, from which a series of novel compound discoveries have been made. Here, we summarise the origins and types of 375 compounds that have been discovered from the symbiosis over the past four decades and discuss the potential for synergistic actions between compounds within the complex chemical mixtures in which they exist. We go on to highlight how vastly underexplored the diversity and geographic distribution of the symbiosis is, which leaves ample potential for natural product discovery of compounds of both ecological and medical importance.
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Affiliation(s)
- Suzanne Schmidt
- Section for Ecology and Evolution, Department of Biology, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen, Denmark.
| | - Sara Kildgaard
- Section for Ecology and Evolution, Department of Biology, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen, Denmark.
| | - Huijuan Guo
- Leibniz Institute for Natural Product Research and Infection Biology e.V., Hans-Knöll-Institute (HKI), Beutenbergstraße 11a, 07745 Jena, Germany
| | - Christine Beemelmanns
- Leibniz Institute for Natural Product Research and Infection Biology e.V., Hans-Knöll-Institute (HKI), Beutenbergstraße 11a, 07745 Jena, Germany
| | - Michael Poulsen
- Section for Ecology and Evolution, Department of Biology, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen, Denmark.
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23
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Sureram S, Arduino I, Ueoka R, Rittà M, Francese R, Srivibool R, Darshana D, Piel J, Ruchirawat S, Muratori L, Lembo D, Kittakoop P, Donalisio M. The Peptide A-3302-B Isolated from a Marine Bacterium Micromonospora sp. Inhibits HSV-2 Infection by Preventing the Viral Egress from Host Cells. Int J Mol Sci 2022; 23:947. [PMID: 35055133 PMCID: PMC8778767 DOI: 10.3390/ijms23020947] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/07/2022] [Accepted: 01/13/2022] [Indexed: 02/04/2023] Open
Abstract
Herpesviruses are highly prevalent in the human population, and frequent reactivations occur throughout life. Despite antiviral drugs against herpetic infections, the increasing appearance of drug-resistant viral strains and their adverse effects prompt the research of novel antiherpetic drugs for treating lesions. Peptides obtained from natural sources have recently become of particular interest for antiviral therapy applications. In this work, we investigated the antiviral activity of the peptide A-3302-B, isolated from a marine bacterium, Micromonospora sp., strain MAG 9-7, against herpes simplex virus type 1, type 2, and human cytomegalovirus. Results showed that the peptide exerted a specific inhibitory activity against HSV-2 with an EC50 value of 14 μM. Specific antiviral assays were performed to investigate the mechanism of action of A-3302-B. We demonstrated that the peptide did not affect the expression of viral proteins, but it inhibited the late events of the HSV-2 replicative cycle. In detail, it reduced the cell-to-cell virus spread and the transmission of the extracellular free virus by preventing the egress of HSV-2 progeny from the infected cells. The dual antiviral and previously reported anti-inflammatory activities of A-3302-B, and its effect against an acyclovir-resistant HSV-2 strain are attractive features for developing a therapeutic to reduce the transmission of HSV-2 infections.
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Affiliation(s)
- Sanya Sureram
- Chulabhorn Research Institute, Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand; (S.S.); (S.R.)
| | - Irene Arduino
- Department of Clinical and Biological Sciences, University of Turin, Regione Gonzole 10, 10043 Orbassano, Italy; (I.A.); (M.R.); (R.F.); (D.L.)
| | - Reiko Ueoka
- Institute of Microbiology, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland; (R.U.); (J.P.)
| | - Massimo Rittà
- Department of Clinical and Biological Sciences, University of Turin, Regione Gonzole 10, 10043 Orbassano, Italy; (I.A.); (M.R.); (R.F.); (D.L.)
| | - Rachele Francese
- Department of Clinical and Biological Sciences, University of Turin, Regione Gonzole 10, 10043 Orbassano, Italy; (I.A.); (M.R.); (R.F.); (D.L.)
| | | | - Dhanushka Darshana
- Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand;
| | - Jörn Piel
- Institute of Microbiology, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland; (R.U.); (J.P.)
| | - Somsak Ruchirawat
- Chulabhorn Research Institute, Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand; (S.S.); (S.R.)
- Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand;
- Center of Excellence on Environmental Health and Toxicology (EHT), OPS, Ministry of Higher Education, Science, Research and Innovation, Bangkok 10210, Thailand
| | - Luisa Muratori
- Department of Clinical and Biological Sciences, Neuroscience Institute of the “Cavalieri Ottolenghi” Foundation (NICO), University of Turin, 10043 Orbassano, Italy;
| | - David Lembo
- Department of Clinical and Biological Sciences, University of Turin, Regione Gonzole 10, 10043 Orbassano, Italy; (I.A.); (M.R.); (R.F.); (D.L.)
| | - Prasat Kittakoop
- Chulabhorn Research Institute, Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand; (S.S.); (S.R.)
- Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand;
- Center of Excellence on Environmental Health and Toxicology (EHT), OPS, Ministry of Higher Education, Science, Research and Innovation, Bangkok 10210, Thailand
| | - Manuela Donalisio
- Department of Clinical and Biological Sciences, University of Turin, Regione Gonzole 10, 10043 Orbassano, Italy; (I.A.); (M.R.); (R.F.); (D.L.)
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24
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Yao FH, Liang X, Cheng X, Ling J, Dong JD, Qi SH. Antifungal peptides from the marine gorgonian-associated fungus Aspergillus sp. SCSIO41501. PHYTOCHEMISTRY 2021; 192:112967. [PMID: 34598042 DOI: 10.1016/j.phytochem.2021.112967] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 09/22/2021] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
Three undescribed cyclic lipopeptides maribasins C-E and four undescribed linear peptides aspergillipeptides H-K together with three known analogous maribasins A-B and marihysin A were isolated from the marine gorgonian-associated fungus Aspergillus sp. SCSIO 41501 (Trichocomaceae). Their structures were determined by spectroscopic analysis, and their absolute configurations were further confirmed by Marfey's methods. Maribasins C-E and maribasins A-B showed significant antifungal activity against five phytopathogenic fungal strains with MIC values of 3.12-50 μg/disc. Structure-bioactivity relationship exhibited that the β-amino fatty acid chain could significantly affect the antifungal activity of this type of cyclic lipopeptides.
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Affiliation(s)
- Fei-Hua Yao
- 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, 164 West Xingang Road, Guangzhou, 510301, Guangdong, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao Liang
- 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, 164 West Xingang Road, Guangzhou, 510301, Guangdong, China
| | - Xia Cheng
- 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, 164 West Xingang Road, Guangzhou, 510301, Guangdong, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Juan Ling
- 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, 164 West Xingang Road, Guangzhou, 510301, Guangdong, China
| | - Jun-De Dong
- 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, 164 West Xingang Road, Guangzhou, 510301, Guangdong, China
| | - Shu-Hua Qi
- 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, 164 West Xingang Road, Guangzhou, 510301, Guangdong, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China.
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25
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Agrawal S, Saha S. The genus Simplicillium and Emericellopsis: A review of phytochemistry and pharmacology. Biotechnol Appl Biochem 2021; 69:2229-2239. [PMID: 34779050 DOI: 10.1002/bab.2281] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 11/09/2021] [Indexed: 11/07/2022]
Abstract
The demand for novel and improved medicine from biological sources to cater to the biopharmaceutical sector has increased significantly in recent years. Among the vast and miscellaneous microbial diversity, fungi provide a prolific source of structurally unique and biologically active secondary metabolites. Natural products obtained from fungi have reformed the era of biomedicine, providing effective drugs that have diverse healing potential. In this review, we focus on the isolation, chemical structure, and bioactivity of biomolecules that have been identified and studied for the first time. Further, we also explain in substantial detail that how the vast uninvestigated Emericellopsis and Simplicillium species may serve as a potential treasure trove of chemically diverse compounds.
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Affiliation(s)
- Shivankar Agrawal
- Department of Phytochemistry, ICMR-National Institute of Traditional Medicine, Belagavi, Karnataka, India
| | - Suman Saha
- Department of Chemical Engineering, Parul Institute of Technology, Parul University, Vadodara, Gujarat
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26
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Sujithra M, Prathibha HV, Rajkumar M, Guru-Pirasanna-Pandi G, Senthil-Nathan S, Hegde V. Entomopathogenic Potential of Simplicillium lanosoniveum Native Strain in Suppressing Invasive Whitefly, Aleurodicusrugioperculatus Martin (Hemiptera: Aleyrodidae), Infesting Coconut. J Fungi (Basel) 2021; 7:jof7110964. [PMID: 34829251 PMCID: PMC8619503 DOI: 10.3390/jof7110964] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/06/2021] [Accepted: 11/10/2021] [Indexed: 12/16/2022] Open
Abstract
In 2016, infestation of an exotic polyphagous pest, the rugose spiraling whitefly (RSW), Aleurodicus rugioperculatus Martin (Hemiptera: Aleyrodidae), was documented on coconut for the first time in India. Instantaneously, RSW has garnered wide attention owing to its damage severity and rapid spread across the coconut-growing regions of the country. Hence, an attempt was made to devise a sustainable integrated pest management (IPM) module using biological control agents as a mainstay component. The present study documented the identification and characterization of a potential entomopathogenic fungal isolate for the management of RSW. An entomopathogenic fungus isolated from nymphal cadavers of RSW was identified as Simplicillium lanosoniveum based on morphological and phylogenetic analyses. A gradient of five conidial concentrations (1 × 104, 1 × 105, 1 × 106, 1 × 107 and 1 × 108 conidia/mL) of the S.lanosoniveum were tested against eggs, first instars, second to third instars and pupae of RSW. Results revealed that S.lanosoniveum is highly virulent to all developmental stages of RSW by causing mortality rates of 95.20%, 87.33%, 85.38% and 72.85%, in eggs, initial, middle and later instar nymphs of RSW, respectively, at the highest tested concentration (1 × 108 conidia/mL) at seven days after exposure. The LC50 and LT50 values of S.lanosoniveum were 4.72 × 104, 4.94 × 104, 5.11 × 105, 5.92 × 105 conidia/mL and 4.27, 4.86, 4.56, 5.89 days against eggs, initial, middle and later instar nymphs of RSW, respectively. Further, preliminary field trials with S.lanosoniveum strain at 1 × 108 conidia/mL exhibited a significant reduction in the egg and nymphal population by 57.8% and 56.3%, respectively. This report thus demonstrated that the newly isolated S.lanosoniveum is an effective pathogen at suppressing all the developmental stages of RSW. This is the first record of S.lanosoniveum infecting RSW, and it has a great potential to be developed as a mycoinsecticide.
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Affiliation(s)
- Maruthakasi Sujithra
- Division of Crop Protection, Central Plantation Crop Research Institute, ICAR, Kasaragod 671124, India; (H.V.P.); (M.R.); (V.H.)
- Correspondence: (M.S.); (G.G.-P.-P.); (S.S.-N.); Tel.: +91-(04994)-232894 (M.S.); Fax: +91-(04994)-232322 (M.S.)
| | - Hanumanthappa Veerappa Prathibha
- Division of Crop Protection, Central Plantation Crop Research Institute, ICAR, Kasaragod 671124, India; (H.V.P.); (M.R.); (V.H.)
| | - Manikappa Rajkumar
- Division of Crop Protection, Central Plantation Crop Research Institute, ICAR, Kasaragod 671124, India; (H.V.P.); (M.R.); (V.H.)
| | - Govindharaj Guru-Pirasanna-Pandi
- Division of Crop Protection, National Rice Research Institute, ICAR, Cuttack 753006, India
- Correspondence: (M.S.); (G.G.-P.-P.); (S.S.-N.); Tel.: +91-(04994)-232894 (M.S.); Fax: +91-(04994)-232322 (M.S.)
| | - Sengottayan Senthil-Nathan
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Tirunelveli 627412, India
- Correspondence: (M.S.); (G.G.-P.-P.); (S.S.-N.); Tel.: +91-(04994)-232894 (M.S.); Fax: +91-(04994)-232322 (M.S.)
| | - Vinayaka Hegde
- Division of Crop Protection, Central Plantation Crop Research Institute, ICAR, Kasaragod 671124, India; (H.V.P.); (M.R.); (V.H.)
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27
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Saide A, Lauritano C, Ianora A. A Treasure of Bioactive Compounds from the Deep Sea. Biomedicines 2021; 9:biomedicines9111556. [PMID: 34829785 PMCID: PMC8614969 DOI: 10.3390/biomedicines9111556] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/12/2021] [Accepted: 10/21/2021] [Indexed: 11/16/2022] Open
Abstract
The deep-sea environment is a unique, challenging extreme habitat where species have had to adapt to the absence of light, low levels of oxygen, high pressure and little food. In order to survive such harsh conditions, these organisms have evolved different biochemical and physiological features that often have no other equivalent in terrestrial habitats. Recent analyses have highlighted how the deep sea is one of the most diverse and species-rich habitats on the planet but less explored compared to more accessible sites. Because of their adaptation to this extreme environment, deep-sea species have the potential to produce novel secondary metabolites with potent biological activities. Recent advances in sampling and novel techniques in microorganism culturing and chemical isolation have promoted the discovery of bioactive agents from deep-sea organisms. However, reports of natural products derived from deep-sea species are still scarce, probably because of the difficulty in accessing deep-sea samples, sampling costs and the difficulty in culturing deep-sea organisms. In this review, we give an overview of the potential treasure represented by metabolites produced by deep marine species and their bioactivities for the treatment and prevention of various human pathologies.
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28
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Al-Wahaibi LH, Mostafa A, Mostafa YA, Abou-Ghadir OF, Abdelazeem AH, Gouda AM, Kutkat O, Abo Shama NM, Shehata M, Gomaa HAM, Abdelrahman MH, Mohamed FAM, Gu X, Ali MA, Trembleau L, Youssif BGM. Discovery of novel oxazole-based macrocycles as anti-coronaviral agents targeting SARS-CoV-2 main protease. Bioorg Chem 2021; 116:105363. [PMID: 34555629 PMCID: PMC8445767 DOI: 10.1016/j.bioorg.2021.105363] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 09/01/2021] [Accepted: 09/13/2021] [Indexed: 12/25/2022]
Abstract
We have discovered a family of synthetic oxazole-based macrocycles to be active against SARS-CoV-2. The synthesis, pharmacological properties, and docking studies of the compounds are reported in this study. The structure of the new macrocycles was confirmed by NMR spectroscopy and mass spectrometry. Compounds 13, 14, and 15a-c were evaluated for their anti-SARS-CoV-2 activity on SARS-COV-2 (NRC-03-nhCoV) virus in Vero-E6 cells. Isopropyl triester 13 and triacid 14 demonstrated superior inhibitory activities against SARS-CoV-2 compared to carboxamides 15a-c. MTT cytotoxicity assays showed that the CC50 (50% cytotoxicity concentration) of 13, 14, and 15a-c ranged from 159.1 to 741.8 μM and their safety indices ranged from 2.50 to 39.1. Study of the viral inhibition via different mechanisms of action (viral adsorption, replication, or virucidal property) showed that 14 had mild virucidal (60%) and inhibitory effects on virus adsorption (66%) at 20 μM concentrations. Compound 13 displayed several inhibitory effects at three levels, but the potency of its action is primarily virucidal. The inhibitory activity of compounds 13, 14, and 15a-c against the enzyme SARS-CoV-2 Mpro was evaluated. Isopropyl triester 13 had a significant inhibition activity against SARS-CoV-2 Mpro with an IC50 of 2.58 µM. Large substituents on the macrocyclic template significantly reduced the inhibitory effects of the compounds. Study of the docking of the compounds in the SARS CoV-2-Mpro active site showed that the most potent macrocycles 13 and 14 exhibited the best fit and highest affinity for the active site binding pocket. Taken together, the present study shows that the new macrocyclic compounds constitute a new family of SARS CoV-2-Mpro inhibitors that are worth being further optimized and developed.
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Affiliation(s)
- Lamya H Al-Wahaibi
- Department of Chemistry, College of Sciences, Princess Nourah Bint Abdulrahman University, Saudi Arabia.
| | - Ahmed Mostafa
- Center of Scientific Excellence for Influenza Viruses, National Research Centre, Giza, Egypt
| | - Yaser A Mostafa
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Ola F Abou-Ghadir
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Ahmed H Abdelazeem
- Department of Medicinal Chemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt; Department of Pharmaceutical Sciences, College of Pharmacy, Riyadh Elm University, Riyadh 11681, Saudi Arabia
| | - Ahmed M Gouda
- Department of Medicinal Chemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Omnia Kutkat
- Center of Scientific Excellence for Influenza Viruses, National Research Centre, Giza, Egypt
| | - Noura M Abo Shama
- Center of Scientific Excellence for Influenza Viruses, National Research Centre, Giza, Egypt
| | - Mahmoud Shehata
- Center of Scientific Excellence for Influenza Viruses, National Research Centre, Giza, Egypt
| | - Hesham A M Gomaa
- Pharmacology Department, College of Pharmacy, Jouf University, Sakaka, Aljouf 72341, Saudi Arabia
| | - Mostafa H Abdelrahman
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt; Chemistry Department, School of Natural and Computing Sciences, University of Aberdeen, Meston Building, Aberdeen AB24 3UE, United Kingdom
| | - Fatma A M Mohamed
- Clinical Laboratory Science Department, College of Applied Medical Sciences, Jouf University, Aljouf 72341, Saudi Arabia; Chemistry Department, Faculty of Science, Alexandria University, Alexandria 21321, Egypt
| | - Xuyuan Gu
- Chemistry Department, School of Natural and Computing Sciences, University of Aberdeen, Meston Building, Aberdeen AB24 3UE, United Kingdom
| | - Mohamed A Ali
- Center of Scientific Excellence for Influenza Viruses, National Research Centre, Giza, Egypt
| | - Laurent Trembleau
- Chemistry Department, School of Natural and Computing Sciences, University of Aberdeen, Meston Building, Aberdeen AB24 3UE, United Kingdom.
| | - Bahaa G M Youssif
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt.
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29
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Takahashi JA, Barbosa BVR, Lima MTNS, Cardoso PG, Contigli C, Pimenta LPS. Antiviral fungal metabolites and some insights into their contribution to the current COVID-19 pandemic. Bioorg Med Chem 2021; 46:116366. [PMID: 34438338 PMCID: PMC8363177 DOI: 10.1016/j.bmc.2021.116366] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/23/2021] [Accepted: 08/03/2021] [Indexed: 12/11/2022]
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) outbreak, which started in late 2019, drove the scientific community to conduct innovative research to contain the spread of the pandemic and to care for those already affected. Since then, the search for new drugs that are effective against the virus has been strengthened. Featuring a relatively low cost of production under well-defined methods of cultivation, fungi have been providing a diversity of antiviral metabolites with unprecedented chemical structures. In this review, we present viral RNA infections highlighting SARS-CoV-2 morphogenesis and the infectious cycle, the targets of known antiviral drugs, and current developments in this area such as drug repurposing. We also explored the metabolic adaptability of fungi during fermentation to produce metabolites active against RNA viruses, along with their chemical structures, and mechanisms of action. Finally, the state of the art of research on SARS-CoV-2 inhibitors of fungal origin is reported, highlighting the metabolites selected by docking studies.
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Affiliation(s)
- Jacqueline Aparecida Takahashi
- Department of Chemistry, Exact Sciences Institute, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, CEP 31270-901 Belo Horizonte, MG, Brazil.
| | - Bianca Vianna Rodrigues Barbosa
- Department of Chemistry, Exact Sciences Institute, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, CEP 31270-901 Belo Horizonte, MG, Brazil
| | - Matheus Thomaz Nogueira Silva Lima
- Department of Food Science, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, CEP 31270-901 Belo Horizonte, MG, Brazil.
| | - Patrícia Gomes Cardoso
- Department of Biology, Universidade Federal de Lavras, Av. Dr. Sylvio Menicucci, 1001, CEP 37200-900 Lavras, MG, Brazil.
| | - Christiane Contigli
- Cell Biology Service, Research and Development Department, Fundação Ezequiel Dias, R. Conde Pereira Carneiro, 80, CEP 30510-010 Belo Horizonte, MG, Brazil
| | - Lúcia Pinheiro Santos Pimenta
- Department of Chemistry, Exact Sciences Institute, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, CEP 31270-901 Belo Horizonte, MG, Brazil
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30
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Raihan T, Rabbee MF, Roy P, Choudhury S, Baek KH, Azad AK. Microbial Metabolites: The Emerging Hotspot of Antiviral Compounds as Potential Candidates to Avert Viral Pandemic Alike COVID-19. Front Mol Biosci 2021; 8:732256. [PMID: 34557521 PMCID: PMC8452873 DOI: 10.3389/fmolb.2021.732256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 08/23/2021] [Indexed: 12/15/2022] Open
Abstract
The present global COVID-19 pandemic caused by the noble pleomorphic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has created a vulnerable situation in the global healthcare and economy. In this pandemic situation, researchers all around the world are trying their level best to find suitable therapeutics from various sources to combat against the SARS-CoV-2. To date, numerous bioactive compounds from different sources have been tested to control many viral diseases. However, microbial metabolites are advantageous for drug development over metabolites from other sources. We herein retrieved and reviewed literatures from PubMed, Scopus and Google relevant to antiviral microbial metabolites by searching with the keywords "antiviral microbial metabolites," "microbial metabolite against virus," "microorganism with antiviral activity," "antiviral medicine from microbial metabolite," "antiviral bacterial metabolites," "antiviral fungal metabolites," "antiviral metabolites from microscopic algae' and so on. For the same purpose, the keywords "microbial metabolites against COVID-19 and SARS-CoV-2" and "plant metabolites against COVID-19 and SARS-CoV-2" were used. Only the full text literatures available in English and pertinent to the topic have been included and those which are not available as full text in English and pertinent to antiviral or anti-SARS-CoV-2 activity were excluded. In this review, we have accumulated microbial metabolites that can be used as antiviral agents against a broad range of viruses including SARS-CoV-2. Based on this concept, we have included 330 antiviral microbial metabolites so far available to date in the data bases and were previously isolated from fungi, bacteria and microalgae. The microbial source, chemical nature, targeted viruses, mechanism of actions and IC50/EC50 values of these metabolites are discussed although mechanisms of actions of many of them are not yet elucidated. Among these antiviral microbial metabolites, some compounds might be very potential against many other viruses including coronaviruses. However, these potential microbial metabolites need further research to be developed as effective antiviral drugs. This paper may provide the scientific community with the possible secret of microbial metabolites that could be an effective source of novel antiviral drugs to fight against many viruses including SARS-CoV-2 as well as the future viral pandemics.
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Affiliation(s)
- Topu Raihan
- Department of Genetic Engineering and Biotechnology, Shahjalal University of Science and Technology, Sylhet, Bangladesh
| | | | - Puja Roy
- Department of Genetic Engineering and Biotechnology, Shahjalal University of Science and Technology, Sylhet, Bangladesh
| | - Swapnila Choudhury
- Department of Genetic Engineering and Biotechnology, Jagannath University, Dhaka, Bangladesh
| | - Kwang-Hyun Baek
- Department of Biotechnology, Yeungnam University, Gyeongsan, South Korea
| | - Abul Kalam Azad
- Department of Genetic Engineering and Biotechnology, Shahjalal University of Science and Technology, Sylhet, Bangladesh
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31
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Bellavita R, Casciaro B, Di Maro S, Brancaccio D, Carotenuto A, Falanga A, Cappiello F, Buommino E, Galdiero S, Novellino E, Grossmann TN, Mangoni ML, Merlino F, Grieco P. First-in-Class Cyclic Temporin L Analogue: Design, Synthesis, and Antimicrobial Assessment. J Med Chem 2021; 64:11675-11694. [PMID: 34296619 PMCID: PMC8389922 DOI: 10.1021/acs.jmedchem.1c01033] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Indexed: 02/08/2023]
Abstract
The pharmacodynamic and pharmacokinetic properties of bioactive peptides can be modulated by introducing conformational constraints such as intramolecular macrocyclizations, which can involve either the backbone and/or side chains. Herein, we aimed at increasing the α-helicity content of temporin L, an isoform of an intriguing class of linear antimicrobial peptides (AMPs), endowed with a wide antimicrobial spectrum, by the employment of diverse side-chain tethering strategies, including lactam, 1,4-substituted [1,2,3]-triazole, hydrocarbon, and disulfide linkers. Our approach resulted in a library of cyclic temporin L analogues that were biologically assessed for their antimicrobial, cytotoxic, and antibiofilm activities, leading to the development of the first-in-class cyclic peptide related to this AMP family. Our results allowed us to expand the knowledge regarding the relationship between the α-helical character of temporin derivatives and their biological activity, paving the way for the development of improved antibiotic cyclic AMP analogues.
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Affiliation(s)
- Rosa Bellavita
- Department
of Pharmacy, University of Naples “Federico
II”, Naples 80131, Italy
| | - Bruno Casciaro
- Center
for Life Nano- & Neuro-Science, Fondazione
Istituto Italiano di Tecnologia (IIT), Rome 00161, Italy
| | - Salvatore Di Maro
- DiSTABiF, University of Campania “Luigi
Vanvitelli”, Caserta 81100, Italy
| | - Diego Brancaccio
- Department
of Pharmacy, University of Naples “Federico
II”, Naples 80131, Italy
| | - Alfonso Carotenuto
- Department
of Pharmacy, University of Naples “Federico
II”, Naples 80131, Italy
| | - Annarita Falanga
- Department
of Agricultural Sciences, University of
Naples “Federico II”, Portici 80055, Italy
| | - Floriana Cappiello
- Department
of Biochemical Sciences, Laboratory affiliated to Istituto Pasteur
Italia-Fondazione Cenci Bolognetti, Sapienza
University of Rome, Rome 00185, Italy
| | - Elisabetta Buommino
- Department
of Pharmacy, University of Naples “Federico
II”, Naples 80131, Italy
| | - Stefania Galdiero
- Department
of Pharmacy, University of Naples “Federico
II”, Naples 80131, Italy
| | - Ettore Novellino
- Department
of Pharmacy, University of Naples “Federico
II”, Naples 80131, Italy
| | - Tom N. Grossmann
- Department
of Chemistry & Pharmaceutical Sciences, VU University Amsterdam, Amsterdam 1081 HZ, The Netherlands
| | - Maria Luisa Mangoni
- Department
of Biochemical Sciences, Laboratory affiliated to Istituto Pasteur
Italia-Fondazione Cenci Bolognetti, Sapienza
University of Rome, Rome 00185, Italy
| | - Francesco Merlino
- Department
of Pharmacy, University of Naples “Federico
II”, Naples 80131, Italy
| | - Paolo Grieco
- Department
of Pharmacy, University of Naples “Federico
II”, Naples 80131, Italy
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32
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Wang C, Hong T, Cui P, Wang J, Xia J. Antimicrobial peptides towards clinical application: Delivery and formulation. Adv Drug Deliv Rev 2021; 175:113818. [PMID: 34090965 DOI: 10.1016/j.addr.2021.05.028] [Citation(s) in RCA: 93] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 05/14/2021] [Accepted: 05/30/2021] [Indexed: 02/07/2023]
Abstract
Antimicrobial peptides hold promise to supplement small molecules antibiotics and combat the multidrug resistant microbes. There are however technical hurdles towards the clinical applications, largely due to the inherent limitations of peptides including stability, cytotoxicity and bioavailability. Here we review recent studies concerning the delivery and formulation of antimicrobial peptides, by categorizing the different strategies as driven by physical interactions or chemical conjugation reactions, and carriers ranging from inorganic based ones (including gold, silver and silica based solid nanoparticles) to organic ones (including micelle, liposome and hydrogel) are covered. Besides, targeted delivery of antimicrobial peptides or using antimicrobial peptides as the targeting moiety, and responsive release of the peptides after delivery are also reviewed. Lastly, strategies towards the increase of oral bioavailability, from both physical or chemical methods, are highlighted. Altogether, this article provides a comprehensive review of the recent progress of the delivery and formulation of antimicrobial peptides towards clinical application.
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Affiliation(s)
- Cheng Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Tingting Hong
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Pengfei Cui
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Jianhao Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China.
| | - Jiang Xia
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong Special Administrative Region.
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33
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Chen WH, Han YF, Liang JD, Liang ZQ. Taxonomic and phylogenetic characterizations reveal four new species of Simplicillium (Cordycipitaceae, Hypocreales) from Guizhou, China. Sci Rep 2021; 11:15300. [PMID: 34316013 PMCID: PMC8316311 DOI: 10.1038/s41598-021-94893-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 07/12/2021] [Indexed: 11/11/2022] Open
Abstract
Simplicillium species are commonly found from soil, seawater, rock surface, decayed wood, air and as symbiotic, endophytic, entomopathogenic and mycoparasitic fungi. Minority insect-associated species was reported. Simplicillium coccinellidae, S. hymenopterorum, S. neolepidopterorum and S. scarabaeoidea were introduced as the newly insect-associated species. The phylogenetic analyses of two combined datasets (LSU + RPB1 + TEF and SSU + ITS + LSU) revealed that S. coccinellidae and S. hymenopterorum were both nested in an independent clade. S. neolepidopterorum and S. scarabaeoidea have a close relationship with S. formicidae and S. lepidopterorum, respectively. S. neolepidopterorum can be easily distinguished from S. formicidae by ellipsoidal to cylindrical, solitary conidia which occasionally gather in short imbricate chains. S. scarabaeoidea could be easily distinguished from S. lepodopterorum by having longer phialides and larger conidia. Based on the morphological and phylogenetic conclusion, we determine the four newly generated isolates as new species of Simplicillium and a new combination is proposed in the genus Leptobacillium.
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Affiliation(s)
- Wan-Hao Chen
- Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, Guizhou, People's Republic of China
| | - Yan-Feng Han
- Department of Ecology, Institute of Fungus Resources, College of Life Sciences, Guizhou University, Guiyang, 550025, Guizhou, People's Republic of China.
| | - Jian-Dong Liang
- Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, Guizhou, People's Republic of China
| | - Zong-Qi Liang
- Department of Ecology, Institute of Fungus Resources, College of Life Sciences, Guizhou University, Guiyang, 550025, Guizhou, People's Republic of China
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An Updated Review on the Secondary Metabolites and Biological Activities of Aspergillus ruber and Aspergillus flavus and Exploring the Cytotoxic Potential of Their Isolated Compounds Using Virtual Screening. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:8860784. [PMID: 33603824 PMCID: PMC7868156 DOI: 10.1155/2021/8860784] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 01/03/2021] [Accepted: 01/07/2021] [Indexed: 11/27/2022]
Abstract
The secondary metabolites and biological activities of Aspergillus ruber and Aspergillus flavus were comprehensively reported. About 70 compounds were isolated from both species that belong to different classes using conventional and advanced chromatographic techniques and unambiguously elucidated employing one- and two-dimensional nuclear magnetic resonance (1D and 2D NMR) and high resolution mass spectrometry (HRMS). Some of them displayed promising antiviral, anti-inflammatory, and antioxidant activities. In silico studies were conducted on human cyclin-dependent kinase 2 (CDK-2), human DNA topoisomerase II (TOP-2), and matrix metalloprotinase 13 (MMP-13) in an effort to explore the cytotoxic potential of the diverse compounds obtained from both Aspergillus species. 1,6,8-Trihydroxy-4-benzoyloxy-3-methylanthraquinone (23) revealed the most firm fitting with the active pockets of CDK-2 and MMP-13; meanwhile, variecolorin H alkaloid (14) showed the highest fitting within TOP-2 with ∆G equals to −36.51 kcal/mole. Thus, fungal metabolites could offer new drug entities for combating cancer. Relevant data about both Aspergillus species up to August 2020 were gathered from various databases comprising Scifinder (https://scifinder.cas.org/scifinder/login) for secondary metabolite-related studies; meanwhile, for biology-related articles, data were collected from both PubMed (http://www.ncbi.nlm.nih.gov/pubmed/) and Web of Knowledge (http://www.webofknowledge.com) as well.
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Xie J, Liao B, Zhu H, Yu Y, Tang RY. Synthesis of novel 2-methyl-3-furyl sulfide flavor derivatives as efficient preservatives. RSC Adv 2021; 11:25639-25645. [PMID: 35478926 PMCID: PMC9037019 DOI: 10.1039/d1ra04207f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/17/2021] [Indexed: 12/19/2022] Open
Abstract
Foodborne microbial infestation seriously threatens food security, and the development of low-risk food preservatives is highly needed in food production. For discovering novel flavor molecules with antiseptic function, novel 2-methyl-3-furyl sulfide flavor derivatives were synthesized and evaluated. A wide range of 2-methyl-3-furyl sulfide derivatives were synthesized by reactions of 2-methyl-3-furyl disulfide with cyclic ethers, amides, ketones, and epoxides. All of these compounds have special aroma characteristics and low aroma thresholds. The antimicrobial activity of these compounds against test foodborne bacterial or fungal strains (Escherichia coli, Bacillus subtilis, Staphylococcus aureus, Salmonella paratyphi, Listeria monocytogenes, Vibrio parahemolyticus, Penicillium italicum, Aspergillus niger, Mucor racemosus, Rhizopus oryzae) was examined. It was found that fifteen compounds (3a, 3b, 3d, 3e, 3f, 3g, 3h, 3i, 3j, 3k, 3l, 3m, 5a, 5b, 5f) have antimicrobial activity against different foodborne bacterial or fungal strains. Significantly, the antimicrobial activity of the flavor compounds (3b, 3d, 3e, 3i, 3j, 3l, 3m) is better than that of the control group (penicillin, amphotericin B and thiram), and they are promising preservatives for food production. Foodborne microbial infestation seriously threatens food security, and the development of low-risk food preservatives is highly needed in food production.![]()
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Affiliation(s)
- Jinxin Xie
- Department of Applied Chemistry
- College of Materials and Energy
- South China Agricultural University
- Guangzhou 510642
- China
| | - Benjian Liao
- Department of Applied Chemistry
- College of Materials and Energy
- South China Agricultural University
- Guangzhou 510642
- China
| | - Hui Zhu
- Boton Flavors & Fragrances Co. Ltd
- Dongguan 523000
- China
| | - Yongfei Yu
- Boton Flavors & Fragrances Co. Ltd
- Dongguan 523000
- China
| | - Ri-Yuan Tang
- Department of Applied Chemistry
- College of Materials and Energy
- South China Agricultural University
- Guangzhou 510642
- China
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Yi M, Lin S, Zhang B, Jin H, Ding L. Antiviral potential of natural products from marine microbes. Eur J Med Chem 2020; 207:112790. [PMID: 32937282 PMCID: PMC7457942 DOI: 10.1016/j.ejmech.2020.112790] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/25/2020] [Accepted: 08/26/2020] [Indexed: 12/16/2022]
Abstract
Humans have been suffered from viral infections over the centuries, such as influenza, HSV, and HIV, which have killed millions of people worldwide. However, the availability of effective treatments for infectious diseases remains limited until now, as most of the viral pathogens resisted to many medical treatments. Marine microbes are currently one of the most copious sources of pharmacologically active natural products, which have constantly provided promising antivirus agents. To date, a large number of marine microbial secondary metabolites with antiviral activities have been widely reported. In this review, we have summarized the potential antivirus compounds from marine microorganisms over the last decade. In addition, the structures, bioactivities, and origins of these compounds were discussed as well.
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Affiliation(s)
- Mengqi Yi
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315832, China
| | - Sixiao Lin
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315832, China
| | - Bin Zhang
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315832, China
| | - Haixiao Jin
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315832, China
| | - Lijian Ding
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315832, China.
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Niu S, Yang L, Chen T, Hong B, Pei S, Shao Z, Zhang G. New Monoterpenoids and Polyketides from the Deep-Sea Sediment-Derived Fungus Aspergillus sydowii MCCC 3A00324. Mar Drugs 2020; 18:E561. [PMID: 33212800 PMCID: PMC7696626 DOI: 10.3390/md18110561] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/11/2020] [Accepted: 11/14/2020] [Indexed: 12/18/2022] Open
Abstract
Chemical study of the secondary metabolites of a deep-sea-derived fungus Aspergillus sydowii MCCC 3A00324 led to the isolation of eleven compounds (1-11), including one novel (1) and one new (2) osmane-related monoterpenoids and two undescribed polyketides (3 and 4). The structures of the metabolites were determined by comprehensive analyses of the NMR and HRESIMS spectra, in association with quantum chemical calculations of the 13C NMR, ECD, and specific rotation data for the configurational assignment. Compound 1 possessed a novel monoterpenoid skeleton, biogenetically probably derived from the osmane-type monoperpenoid after the cyclopentane ring cleavage and oxidation reactions. Additionally, compound 3 was the first example of the α-pyrone derivatives bearing two phenyl units at C-3 and C-5, respectively. The anti-inflammatory activities of 1-11 were tested. As a result, compound 6 showed potent inhibitory nitric oxide production in lipopolysaccharide (LPS)-activated BV-2 microglia cells with an inhibition rate of 94.4% at the concentration of 10 µM. In addition, a plausible biosynthetic pathway for 1 and 2 was also proposed.
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Affiliation(s)
- Siwen Niu
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China; (S.P.); (Z.S.)
- Technology Innovation Center for Exploitation of Marine Biological Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; (L.Y.); (T.C.)
| | - Longhe Yang
- Technology Innovation Center for Exploitation of Marine Biological Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; (L.Y.); (T.C.)
| | - Tingting Chen
- Technology Innovation Center for Exploitation of Marine Biological Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; (L.Y.); (T.C.)
| | - Bihong Hong
- Technology Innovation Center for Exploitation of Marine Biological Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; (L.Y.); (T.C.)
| | - Shengxiang Pei
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China; (S.P.); (Z.S.)
| | - Zongze Shao
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China; (S.P.); (Z.S.)
| | - Gaiyun Zhang
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China; (S.P.); (Z.S.)
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Simplicilones A and B Isolated from the Endophytic Fungus Simplicillium subtropicum SPC3. Antibiotics (Basel) 2020; 9:antibiotics9110753. [PMID: 33138149 PMCID: PMC7693999 DOI: 10.3390/antibiotics9110753] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 10/26/2020] [Accepted: 10/27/2020] [Indexed: 12/23/2022] Open
Abstract
Two new tetracyclic polyketides with a spirocenter, simplicilones A (1) and B (2) were isolated from the broth-culture of the endophytic fungus Simplicilliumsubtropicum (SPC3) in the course of our screening for new bioactive secondary metabolites. This endophytoic fungus is naturally harboured in the fresh bark of the Cameroonian medicinal plant Duguetia staudtii (Engl. and Diels) Chatrou. The planar structures of the simplicilones were elucidated by MS and 1D as well as 2D NMR spectroscopic techniques. The relative configuration was assigned by NOESY experiments in conjunction with coupling constants; subsequently, the absolute configurations were assigned by the modified Mosher’s method. The compounds showed weak cytotoxic effects against the cell line KB3.1 (in vitro cytotoxicity (IC50) = 25 µg/mL for 1, 29 µg/mL for 2), but were inactive against the tested Gram-positive and Gram-negative bacteria as well as fungi.
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Schalk F, Um S, Guo H, Kreuzenbeck NB, Görls H, de Beer ZW, Beemelmanns C. Targeted Discovery of Tetrapeptides and Cyclic Polyketide-Peptide Hybrids from a Fungal Antagonist of Farming Termites. Chembiochem 2020; 21:2991-2996. [PMID: 32470183 PMCID: PMC7689812 DOI: 10.1002/cbic.202000331] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Indexed: 02/06/2023]
Abstract
Herein, we report the targeted isolation and characterization of four linear nonribosomally synthesized tetrapeptides (pseudoxylaramide A-D) and two cyclic nonribosomal peptide synthetase-polyketide synthase-derived natural products (xylacremolide A and B) from the termite-associated stowaway fungus Pseudoxylaria sp. X187. The fungal strain was prioritized for further metabolic analysis based on its taxonomical position and morphological and bioassay data. Metabolic data were dereplicated based on high-resolution tandem mass spectrometry data and global molecular networking analysis. The structure of all six new natural products was elucidated based on a combination of 1D and 2D NMR analysis, Marfey's analysis and X-ray crystallography.
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Affiliation(s)
- Felix Schalk
- Chemical Biology of Microbe – Host InteractionsInstitution Leibniz Institute for Natural Product Research and Infection BiologyHans Knöll Institute (HKI)Beutenbergstrasse 11a07745JenaGermany
| | - Soohyun Um
- Chemical Biology of Microbe – Host InteractionsInstitution Leibniz Institute for Natural Product Research and Infection BiologyHans Knöll Institute (HKI)Beutenbergstrasse 11a07745JenaGermany
| | - Huijuan Guo
- Chemical Biology of Microbe – Host InteractionsInstitution Leibniz Institute for Natural Product Research and Infection BiologyHans Knöll Institute (HKI)Beutenbergstrasse 11a07745JenaGermany
| | - Nina B. Kreuzenbeck
- Chemical Biology of Microbe – Host InteractionsInstitution Leibniz Institute for Natural Product Research and Infection BiologyHans Knöll Institute (HKI)Beutenbergstrasse 11a07745JenaGermany
| | - Helmar Görls
- Institute for Inorganic and Analytical ChemistryFriedrich-Schiller-UniversityLessingstrasse 807743JenaGermany
| | - Z. Wilhelm de Beer
- Department of Biochemistry, Genetics and MicrobiologyForestry and Agricultural Biotechnology Institute (FABI)University of Pretoria Hatfield0002PretoriaSouth Africa
| | - Christine Beemelmanns
- Chemical Biology of Microbe – Host InteractionsInstitution Leibniz Institute for Natural Product Research and Infection BiologyHans Knöll Institute (HKI)Beutenbergstrasse 11a07745JenaGermany
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Huang ZB, Xia XJ, Huang ZH, Xu L, Zhang XY, Tang RY. Selective C-H dithiocarbamation of arenes and antifungal activity evaluation. Org Biomol Chem 2020; 18:1369-1376. [PMID: 31996878 DOI: 10.1039/c9ob02514f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This paper discloses a transition metal-free selective C-H dithiocarbamation of drug skeletons using disulfiram (DSF) in the presence of KI/K2S2O8 in DMF/H2O. Drug skeletons, including 5-aminopyrazoles, indoles, pyrroloquinoline, and Julolidine, underwent C-H dithiocarbamation smoothly to afford a variety of drug-like molecules in moderate to good yields. It was found that the in situ formed 5-aminopyrazole iodide is the key intermediate for the dithiocarbamation. Bioassay results show that some of these N-heterocyclic dithiocarbamate derivatives exhibit good antifungal activity against Colletotrichum gloeosprioides and Fusarium oxysporum, F. proliferatum, Fusarium solani, Geotrichum candidum, Penicillium digitatum, Penicillium italicum, Phyricularia grisea.
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Affiliation(s)
- Zhuo-Bin Huang
- Department of Applied Chemistry, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
| | - Xiong-Jian Xia
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Consevation and Exploitation, College of Marine Science, South China Agricultural University, Guangzhou 510642, China.
| | - Zi-Hao Huang
- Department of Applied Chemistry, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
| | - Li Xu
- Department of Applied Chemistry, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
| | - Xiao-Yong Zhang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Consevation and Exploitation, College of Marine Science, South China Agricultural University, Guangzhou 510642, China.
| | - Ri-Yuan Tang
- Department of Applied Chemistry, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China. and Lingnan Guangdong Laboratory of Modern Agriculture, Guangzhou, 510642, China
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Wilson ZE, Brimble MA. Molecules derived from the extremes of life: a decade later. Nat Prod Rep 2020; 38:24-82. [PMID: 32672280 DOI: 10.1039/d0np00021c] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Covering: Early 2008 until the end of 2019Microorganisms which survive (extreme-tolerant) or even prefer (extremophilic) living at the limits of pH, temperature, salinity and pressure found on earth have proven to be a rich source of novel structures. In this update we summarise the wide variety of new molecules which have been isolated from extremophilic and extreme-tolerant microorganisms since our original 2009 review, highlighting the range of bioactivities these molecules have been reported to possess.
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Affiliation(s)
- Zoe E Wilson
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand.
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Riccio G, Ruocco N, Mutalipassi M, Costantini M, Zupo V, Coppola D, de Pascale D, Lauritano C. Ten-Year Research Update Review: Antiviral Activities from Marine Organisms. Biomolecules 2020; 10:biom10071007. [PMID: 32645994 PMCID: PMC7407529 DOI: 10.3390/biom10071007] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 06/25/2020] [Accepted: 06/28/2020] [Indexed: 02/08/2023] Open
Abstract
Oceans cover more than 70 percent of the surface of our planet and are characterized by huge taxonomic and chemical diversity of marine organisms. Several studies have shown that marine organisms produce a variety of compounds, derived from primary or secondary metabolism, which may have antiviral activities. In particular, certain marine metabolites are active towards a plethora of viruses. Multiple mechanisms of action have been found, as well as different targets. This review gives an overview of the marine-derived compounds discovered in the last 10 years. Even if marine organisms produce a wide variety of different compounds, there is only one compound available on the market, Ara-A, and only another one is in phase I clinical trials, named Griffithsin. The recent pandemic emergency caused by SARS-CoV-2, also known as COVID-19, highlights the need to further invest in this field, in order to shed light on marine compound potentiality and discover new drugs from the sea.
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Affiliation(s)
- Gennaro Riccio
- Marine Biotechnology Department, Stazione Zoologica Anton Dohrn, CAP, 80121 Naples, Italy; (G.R.); (N.R.); (M.M.); (M.C.); (V.Z.); (D.C.); (D.d.P.)
| | - Nadia Ruocco
- Marine Biotechnology Department, Stazione Zoologica Anton Dohrn, CAP, 80121 Naples, Italy; (G.R.); (N.R.); (M.M.); (M.C.); (V.Z.); (D.C.); (D.d.P.)
| | - Mirko Mutalipassi
- Marine Biotechnology Department, Stazione Zoologica Anton Dohrn, CAP, 80121 Naples, Italy; (G.R.); (N.R.); (M.M.); (M.C.); (V.Z.); (D.C.); (D.d.P.)
| | - Maria Costantini
- Marine Biotechnology Department, Stazione Zoologica Anton Dohrn, CAP, 80121 Naples, Italy; (G.R.); (N.R.); (M.M.); (M.C.); (V.Z.); (D.C.); (D.d.P.)
| | - Valerio Zupo
- Marine Biotechnology Department, Stazione Zoologica Anton Dohrn, CAP, 80121 Naples, Italy; (G.R.); (N.R.); (M.M.); (M.C.); (V.Z.); (D.C.); (D.d.P.)
| | - Daniela Coppola
- Marine Biotechnology Department, Stazione Zoologica Anton Dohrn, CAP, 80121 Naples, Italy; (G.R.); (N.R.); (M.M.); (M.C.); (V.Z.); (D.C.); (D.d.P.)
- Institute of Biosciences and BioResources (IBBR), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy
| | - Donatella de Pascale
- Marine Biotechnology Department, Stazione Zoologica Anton Dohrn, CAP, 80121 Naples, Italy; (G.R.); (N.R.); (M.M.); (M.C.); (V.Z.); (D.C.); (D.d.P.)
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy
| | - Chiara Lauritano
- Marine Biotechnology Department, Stazione Zoologica Anton Dohrn, CAP, 80121 Naples, Italy; (G.R.); (N.R.); (M.M.); (M.C.); (V.Z.); (D.C.); (D.d.P.)
- Correspondence: ; Tel.: +39-081-5833-221
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Draft Genome Sequence of Simplicillium aogashimaense 72-15.1, a Putative Endophyte of Brachiaria brizantha. Microbiol Resour Announc 2020; 9:9/27/e00366-20. [PMID: 32616631 PMCID: PMC7330233 DOI: 10.1128/mra.00366-20] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Here, we report a 29-Mb draft genome sequence of strain 72-15.1 of Simplicillium aogashimaense (Cordycipitaceae, Hypocreales). Strain 72-15.1 was a unique fungal isolate obtained from asymptomatic tillers of the tropical grass Brachiaria brizantha. Here, we report a 29-Mb draft genome sequence of strain 72-15.1 of Simplicillium aogashimaense (Cordycipitaceae, Hypocreales). Strain 72-15.1 was a unique fungal isolate obtained from asymptomatic tillers of the tropical grass Brachiaria brizantha.
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Ibrar M, Ullah MW, Manan S, Farooq U, Rafiq M, Hasan F. Fungi from the extremes of life: an untapped treasure for bioactive compounds. Appl Microbiol Biotechnol 2020; 104:2777-2801. [DOI: 10.1007/s00253-020-10399-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 01/02/2020] [Accepted: 01/20/2020] [Indexed: 01/01/2023]
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Treml J, Gazdová M, Šmejkal K, Šudomová M, Kubatka P, Hassan STS. Natural Products-Derived Chemicals: Breaking Barriers to Novel Anti-HSV Drug Development. Viruses 2020; 12:E154. [PMID: 32013134 PMCID: PMC7077281 DOI: 10.3390/v12020154] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/20/2020] [Accepted: 01/23/2020] [Indexed: 01/06/2023] Open
Abstract
Recently, the problem of viral infection, particularly the infection with herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2), has dramatically increased and caused a significant challenge to public health due to the rising problem of drug resistance. The antiherpetic drug resistance crisis has been attributed to the overuse of these medications, as well as the lack of new drug development by the pharmaceutical industry due to reduced economic inducements and challenging regulatory requirements. Therefore, the development of novel antiviral drugs against HSV infections would be a step forward in improving global combat against these infections. The incorporation of biologically active natural products into anti-HSV drug development at the clinical level has gained limited attention to date. Thus, the search for new drugs from natural products that could enter clinical practice with lessened resistance, less undesirable effects, and various mechanisms of action is greatly needed to break the barriers to novel antiherpetic drug development, which, in turn, will pave the road towards the efficient and safe treatment of HSV infections. In this review, we aim to provide an up-to-date overview of the recent advances in natural antiherpetic agents. Additionally, this paper covers a large scale of phenolic compounds, alkaloids, terpenoids, polysaccharides, peptides, and other miscellaneous compounds derived from various sources of natural origin (plants, marine organisms, microbial sources, lichen species, insects, and mushrooms) with promising activities against HSV infections; these are in vitro and in vivo studies. This work also highlights bioactive natural products that could be used as templates for the further development of anti-HSV drugs at both animal and clinical levels, along with the potential mechanisms by which these compounds induce anti-HSV properties. Future insights into the development of these molecules as safe and effective natural anti-HSV drugs are also debated.
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Affiliation(s)
- Jakub Treml
- Department of Molecular Biology and Pharmaceutical Biotechnology, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42 Brno, Czech Republic;
| | - Markéta Gazdová
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42 Brno, Czech Republic; (M.G.); (K.Š.)
| | - Karel Šmejkal
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42 Brno, Czech Republic; (M.G.); (K.Š.)
| | - Miroslava Šudomová
- Museum of Literature in Moravia, Klášter 1, 664 61 Rajhrad, Czech Republic;
| | - Peter Kubatka
- Department of Medical Biology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01 Martin, Slovakia;
- Division of Oncology, Biomedical Center Martin, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01 Martin, Slovakia
| | - Sherif T. S. Hassan
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 6-Suchdol, 165 21 Prague, Czech Republic
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46
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Zain ul Arifeen M, Ma YN, Xue YR, Liu CH. Deep-Sea Fungi Could Be the New Arsenal for Bioactive Molecules. Mar Drugs 2019; 18:E9. [PMID: 31861953 PMCID: PMC7024341 DOI: 10.3390/md18010009] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/15/2019] [Accepted: 12/15/2019] [Indexed: 12/20/2022] Open
Abstract
Growing microbial resistance to existing drugs and the search for new natural products of pharmaceutical importance have forced researchers to investigate unexplored environments, such as extreme ecosystems. The deep-sea (>1000 m below water surface) has a variety of extreme environments, such as deep-sea sediments, hydrothermal vents, and deep-sea cold region, which are considered to be new arsenals of natural products. Organisms living in the extreme environments of the deep-sea encounter harsh conditions, such as high salinity, extreme pH, absence of sun light, low temperature and oxygen, high hydrostatic pressure, and low availability of growth nutrients. The production of secondary metabolites is one of the strategies these organisms use to survive in such harsh conditions. Fungi growing in such extreme environments produce unique secondary metabolites for defense and communication, some of which also have clinical significance. Despite being the producer of many important bioactive molecules, deep-sea fungi have not been explored thoroughly. Here, we made a brief review of the structure, biological activity, and distribution of secondary metabolites produced by deep-sea fungi in the last five years.
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Affiliation(s)
| | | | | | - Chang-Hong Liu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China; (M.Z.u.A.); (Y.-N.M.); (Y.-R.X.)
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47
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Wei DP, Wanasinghe DN, Hyde KD, Mortimer PE, Xu J, Xiao YP, Bhunjun CS, To-Anun C. The genus Simplicillium. MycoKeys 2019; 60:69-92. [PMID: 31798310 PMCID: PMC6879665 DOI: 10.3897/mycokeys.60.38040] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 09/09/2019] [Indexed: 01/31/2023] Open
Abstract
Simplicillium species have a wide host range and an extensive distribution. Some species are associated with rusts, as well as other plant pathogenic fungi and play an important role in biological control. In this study, two specimens of Simplicillium were collected from Chiang Mai Province, Thailand. Simplicilliumformicae sp. nov. was isolated from an infected ant and S.lanosoniveum from Ophiocordycepsunilateralis which is a new host record. Species were initially identified using ITS gene sequences and confirmed using morphology coupled with phylogenetic analyses of a combined nrLSU, nrSSU, TEF and RPB1 dataset. Simplicilliumformicae differs from other species in the genus by the presence of flask-shaped synnemata and phialides with intercalary nodes. Simplicilliumlanosoniveum resembles other collections of the species by its completely solitary, tapering phialides and globose to ellipsoidal conidia which adhere in a slimly head. A key to species of Simplicillium is also provided.
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Affiliation(s)
- De-Ping Wei
- Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand.,Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand.,Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, China.,Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand
| | - Dhanushka N Wanasinghe
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, China.,World Agroforestry Centre, East and Central Asia, Kunming 650201, Yunnan, China
| | - Kevin D Hyde
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand.,Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand
| | - Peter E Mortimer
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, China
| | - Jianchu Xu
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, China.,World Agroforestry Centre, East and Central Asia, Kunming 650201, Yunnan, China
| | - Yuan-Pin Xiao
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand.,Engineering Research Center of Southwest Bio-Pharmaceutical Resources, Ministry of Education, Guizhou University, Guiyang, Guizhou Province, 550025, China.,School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
| | - Chitrabhanu S Bhunjun
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand.,School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
| | - Chaiwat To-Anun
- Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand
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48
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Jing X, Jin K. A gold mine for drug discovery: Strategies to develop cyclic peptides into therapies. Med Res Rev 2019; 40:753-810. [PMID: 31599007 DOI: 10.1002/med.21639] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 09/05/2019] [Accepted: 09/26/2019] [Indexed: 12/19/2022]
Abstract
As a versatile therapeutic modality, peptides attract much attention because of their great binding affinity, low toxicity, and the capability of targeting traditionally "undruggable" protein surfaces. However, the deficiency of cell permeability and metabolic stability always limits the success of in vitro bioactive peptides as drug candidates. Peptide macrocyclization is one of the most established strategies to overcome these limitations. Over the past decades, more than 40 cyclic peptide drugs have been clinically approved, the vast majority of which are derived from natural products. The de novo discovered cyclic peptides on the basis of rational design and in vitro evolution, have also enabled the binding with targets for which nature provides no solutions. The current review summarizes different classes of cyclic peptides with diverse biological activities, and presents an overview of various approaches to develop cyclic peptide-based drug candidates, drawing upon series of examples to illustrate each strategy.
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Affiliation(s)
- Xiaoshu Jing
- Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Kang Jin
- Department of Medicinal Chemistry, School of Pharmacy, Shandong University, Jinan, Shandong, China
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49
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Liu J, Wang H, Wang G, Luo Q, Cao H, Liu X, Zhang Z, Yang P, Liu Z. Retracted Article: Anti-inflammatory potency of Locusta migratoria manilensis cyclopeptides in mast cells and macrophages. RSC Adv 2019; 9:31296-31305. [PMID: 35527955 PMCID: PMC9072603 DOI: 10.1039/c9ra06284j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 09/16/2019] [Indexed: 01/15/2023] Open
Abstract
Locusts are esteemed as a traditional Chinese medicine, as well as tonic foods in Asian countries. While searching for natural anti-inflammatory agents in natural products, we isolated four novel locust cyclopeptides (LCPs) and the results show that [cyclo-(Trp-Leu-His-Thr)]∼LCP-3 has potent anti-inflammatory potency in RAW264.7 and HMC-1 cells under LPS (lipopolysaccharide) stimuli. Furthermore, mechanistic studies show that LCP-3 attenuates pro-inflammatory cytokine (TNF-α, IL-6, IL-1β, NO and PGE2) expression. Moreover, LCP-3 attenuates inflammatory damage associated with the direct inhibition of iNOS and COX-2 expression. LCP-3 also regulates the MAPK, PI3K/AKT and NF-κB pathways to attenuate LPS-induced damage. Of note, our study first reports the anti-inflammatory potency of LCPs and elucidates their underlying molecular mechanisms.
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Affiliation(s)
- Jie Liu
- The Third Affiliated Hospital of Shenzhen University, Shenzhen University Shenzhen 518020 China +86 755-86671905
- The Research Center of Allergy & Immunology, Shenzhen University School of Medicine Shenzhen 518060 China
| | - Huailing Wang
- The Third Affiliated Hospital of Shenzhen University, Shenzhen University Shenzhen 518020 China +86 755-86671905
- The Research Center of Allergy & Immunology, Shenzhen University School of Medicine Shenzhen 518060 China
| | - Guangjun Wang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences Beijing 100193 China
| | - Qiang Luo
- The Research Center of Allergy & Immunology, Shenzhen University School of Medicine Shenzhen 518060 China
| | - Hui Cao
- The Research Center of Allergy & Immunology, Shenzhen University School of Medicine Shenzhen 518060 China
| | - Xiaoyu Liu
- The Research Center of Allergy & Immunology, Shenzhen University School of Medicine Shenzhen 518060 China
| | - Zehuang Zhang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences Beijing 100193 China
| | - Pingchang Yang
- The Research Center of Allergy & Immunology, Shenzhen University School of Medicine Shenzhen 518060 China
| | - Zhigang Liu
- The Third Affiliated Hospital of Shenzhen University, Shenzhen University Shenzhen 518020 China +86 755-86671905
- The Research Center of Allergy & Immunology, Shenzhen University School of Medicine Shenzhen 518060 China
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50
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Youssef FS, Ashour ML, Singab ANB, Wink M. A Comprehensive Review of Bioactive Peptides from Marine Fungi and Their Biological Significance. Mar Drugs 2019; 17:md17100559. [PMID: 31569458 PMCID: PMC6835287 DOI: 10.3390/md17100559] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/26/2019] [Accepted: 09/28/2019] [Indexed: 12/15/2022] Open
Abstract
Fungal marine microorganisms are a valuable source of bioactive natural products. Fungal secondary metabolites mainly comprise alkaloids, terpenoids, peptides, polyketides, steroids, and lactones. Proteins and peptides from marine fungi show minimal human toxicity and less adverse effects comparable to synthetic drugs. This review summarizes the chemistry and the biological activities of peptides that were isolated and structurally elucidated from marine fungi. Relevant fungal genera including Acremonium, Ascotricha, Aspergillus, Asteromyces, Ceratodictyon, Clonostachys, Emericella, Exserohilum, Microsporum, Metarrhizium, Penicillium, Scytalidium, Simplicillium, Stachylidium, Talaromyces, Trichoderma, as well as Zygosporium were extensively reviewed. About 131 peptides were reported from these 17 genera and their structures were unambiguously determined using 1D and 2D NMR (one and two dimensional nuclear magnetic resonance) techniques in addition to HRMS (high resolution mass spectrometry). Marfey and Mosher reactions were used to confirm the identity of these compounds. About 53% of the isolated peptides exhibited cytotoxic, antimicrobial, and antiviral activity, meanwhile, few of them showed antidiabetic, lipid lowering, and anti-inflammatory activity. However 47% of the isolated peptides showed no activity with respect to the examined biological activity and thus required further in depth biological assessment. In conclusion, when searching for bioactive natural products, it is worth exploring more peptides of fungal origin and assessing their biological activities.
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Affiliation(s)
- Fadia S Youssef
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Cairo 11566, Egypt.
| | - Mohamed L Ashour
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Cairo 11566, Egypt.
- Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, North Obhur, P.O. Box 6231, Jeddah 21442, Saudi Arabia.
| | - Abdel Nasser B Singab
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Cairo 11566, Egypt.
| | - Michael Wink
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Im Neuenheimer Feld 364, 69120 Heidelberg, Germany.
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