1
|
Rodríguez M, Cuervo L, Prado‐Alonso L, González‐Moreno MS, Olano C, Méndez C. The role of Streptomyces to achieve the United Nations sustainable development goals. Burning questions in searching for new compounds. Microb Biotechnol 2024; 17:e14541. [PMID: 39096299 PMCID: PMC11297445 DOI: 10.1111/1751-7915.14541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Accepted: 07/08/2024] [Indexed: 08/05/2024] Open
Affiliation(s)
- Miriam Rodríguez
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A)Universidad de OviedoOviedoSpain
- Instituto de Investigación Sanitaria de Asturias (ISPA)OviedoSpain
| | - Lorena Cuervo
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A)Universidad de OviedoOviedoSpain
- Instituto de Investigación Sanitaria de Asturias (ISPA)OviedoSpain
| | - Laura Prado‐Alonso
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A)Universidad de OviedoOviedoSpain
- Instituto de Investigación Sanitaria de Asturias (ISPA)OviedoSpain
| | - María Soledad González‐Moreno
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A)Universidad de OviedoOviedoSpain
- Instituto de Investigación Sanitaria de Asturias (ISPA)OviedoSpain
| | - Carlos Olano
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A)Universidad de OviedoOviedoSpain
- Instituto de Investigación Sanitaria de Asturias (ISPA)OviedoSpain
| | - Carmen Méndez
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A)Universidad de OviedoOviedoSpain
- Instituto de Investigación Sanitaria de Asturias (ISPA)OviedoSpain
| |
Collapse
|
2
|
Alexandrova LA, Shevchenko OV, Jasko MV, Solyev PN, Karpenko IL, Negrya SD, Efremenkova OV, Vasilieva BF, Efimenko TA, Avdanina DA, Nuraeva GK, Potapov MP, Kukushkina VI, Kochetkov SN, Zhgun AA. 3′-Amino modifications enhance the antifungal properties of N4-alkyl-5-methylcytidines for potential biocides. NEW J CHEM 2022. [DOI: 10.1039/d1nj04312a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A set of 3′-modified N4-alkyl-5-methyl-2′-deoxycytidines has been synthesized and evaluated for biological activity. The replacement of the 3′-hydroxyl group with amino, aminoethyl and dialkylamino groups significantly enhances antifungal activity.
Collapse
Affiliation(s)
| | - Oleg V. Shevchenko
- Engelhardt Institute of Molecular Biology RAS, 32 Vavilova St., 119991 Moscow, Russia
| | - Maxim V. Jasko
- Engelhardt Institute of Molecular Biology RAS, 32 Vavilova St., 119991 Moscow, Russia
| | - Pavel N. Solyev
- Engelhardt Institute of Molecular Biology RAS, 32 Vavilova St., 119991 Moscow, Russia
| | - Inna L. Karpenko
- Engelhardt Institute of Molecular Biology RAS, 32 Vavilova St., 119991 Moscow, Russia
| | - Sergey D. Negrya
- Engelhardt Institute of Molecular Biology RAS, 32 Vavilova St., 119991 Moscow, Russia
| | - Olga V. Efremenkova
- Gause Institute of New Antibiotics, 11 Bol'shaya Pirogovskaya St., 119021 Moscow, Russia
| | - Byazilya F. Vasilieva
- Gause Institute of New Antibiotics, 11 Bol'shaya Pirogovskaya St., 119021 Moscow, Russia
| | - Tatiana A. Efimenko
- Gause Institute of New Antibiotics, 11 Bol'shaya Pirogovskaya St., 119021 Moscow, Russia
| | - Darya A. Avdanina
- Research Center of Biotechnology RAS, 33 Leninsky Ave, 119071 Moscow, Russia
| | - Gulgina K. Nuraeva
- Research Center of Biotechnology RAS, 33 Leninsky Ave, 119071 Moscow, Russia
| | - Mark P. Potapov
- Research Center of Biotechnology RAS, 33 Leninsky Ave, 119071 Moscow, Russia
| | - Vera I. Kukushkina
- Research Center of Biotechnology RAS, 33 Leninsky Ave, 119071 Moscow, Russia
| | - Sergey N. Kochetkov
- Engelhardt Institute of Molecular Biology RAS, 32 Vavilova St., 119991 Moscow, Russia
| | - Alexander A. Zhgun
- Research Center of Biotechnology RAS, 33 Leninsky Ave, 119071 Moscow, Russia
| |
Collapse
|
3
|
Ossai J, Khatabi B, Nybo SE, Kharel MK. Renewed interests in the discovery of bioactive actinomycete metabolites driven by emerging technologies. J Appl Microbiol 2022; 132:59-77. [PMID: 34265147 PMCID: PMC8714619 DOI: 10.1111/jam.15225] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 06/25/2021] [Accepted: 07/12/2021] [Indexed: 01/03/2023]
Abstract
Actinomycetes are prolific sources of bioactive molecules. Traditional workflows including bacterial isolation, fermentation, metabolite identification and structure elucidation have resulted in high rates of natural product rediscovery in recent years. Recent advancements in multi-omics techniques have uncovered cryptic gene clusters within the genomes of actinomycetes, potentially introducing vast resources for the investigation of bioactive molecules. While developments in culture techniques have allowed for the fermentation of difficult-to-culture actinomycetes, high-throughput metabolite screening has offered plenary tools to accelerate hits discovery. A variety of new bioactive molecules have been isolated from actinomycetes of unique environmental origins, such as endophytic and symbiotic actinomycetes. Synthetic biology and genome mining have also emerged as new frontiers for the discovery of bioactive molecules. This review covers the highlights of recent developments in actinomycete-derived natural product drug discovery.
Collapse
Affiliation(s)
- Jenifer Ossai
- University of Maryland Eastern Shore, School of Agriculture and Natural Sciences, One Backbone Road, Princess Anne, MD 21853, USA
| | - Behnam Khatabi
- University of Maryland Eastern Shore, School of Agriculture and Natural Sciences, One Backbone Road, Princess Anne, MD 21853, USA
| | - S. Eric Nybo
- Ferris State University, College of Pharmacy, Big Rapids, Michigan, USA
| | - Madan K. Kharel
- University of Maryland Eastern Shore, School of Pharmacy and Health Professions, Department of Pharmaceutical Sciences, One Backbone Road, Princess Anne, MD 21853, USA,Corresponding author:
| |
Collapse
|
4
|
Savateev KV, Fedotov VV, Slepukhin PA, Ulomsky E, Rusinov VL. Regiospecific way to N9-alkylated thioxanthines. NEW J CHEM 2022. [DOI: 10.1039/d2nj03002k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A regiospecific way to N9-alkylated thioxanthines as novel acyclic nucleoside analogues has been developed. This approach is based on a cleavage methodology involving the construction of a target heterocyclic scaffold...
Collapse
|
5
|
Alexandrova LA, Jasko MV, Negrya SD, Solyev PN, Shevchenko OV, Solodinin AP, Kolonitskaya DP, Karpenko IL, Efremenkova OV, Glukhova AA, Boykova YV, Efimenko TA, Kost NV, Avdanina DA, Nuraeva GK, Volkov IA, Kochetkov SN, Zhgun AA. Discovery of novel N 4-alkylcytidines as promising antimicrobial agents. Eur J Med Chem 2021; 215:113212. [PMID: 33582576 DOI: 10.1016/j.ejmech.2021.113212] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/18/2020] [Accepted: 01/12/2021] [Indexed: 10/22/2022]
Abstract
The emergence of drug-resistant strains of pathogenic microorganisms necessitates the creation of new drugs. In order to find new compounds that effectively inhibit the growth of pathogenic bacteria and fungi, we synthesized a set of N4-derivatives of cytidine, 2'-deoxycytidine and 5-metyl-2'-deoxycytidine bearing extended N4-alkyl and N4-phenylalkyl groups. The derivatives demonstrate activity against a number of Gram-positive bacteria, including Mycobacterium smegmatis (MIC = 24-200 μM) and Staphylococcus aureus (MIC = 50-200 μM), comparable with the activities of some antibiotics in medical use. The most promising compound appeared to be N4-dodecyl-5-metyl-2'-deoxycytidine 4h with activities of 24 and 48 μM against M. smegmatis and S. aureus, respectively, and high inhibitory activity of 0.5 mM against filamentous fungi that can, among other things, damage works of art, such as tempera painting. Noteworthy, some of other synthesized compounds are active against fungal growth with the inhibitory concentration in the range of 0.5-3 mM.
Collapse
Affiliation(s)
| | - Maxim V Jasko
- Engelhardt Institute of Molecular Biology RAS, 32 Vavilova St., 119991, Moscow, Russia
| | - Sergey D Negrya
- Engelhardt Institute of Molecular Biology RAS, 32 Vavilova St., 119991, Moscow, Russia
| | - Pavel N Solyev
- Engelhardt Institute of Molecular Biology RAS, 32 Vavilova St., 119991, Moscow, Russia.
| | - Oleg V Shevchenko
- Engelhardt Institute of Molecular Biology RAS, 32 Vavilova St., 119991, Moscow, Russia
| | - Andrei P Solodinin
- Engelhardt Institute of Molecular Biology RAS, 32 Vavilova St., 119991, Moscow, Russia
| | - Daria P Kolonitskaya
- Engelhardt Institute of Molecular Biology RAS, 32 Vavilova St., 119991, Moscow, Russia
| | - Inna L Karpenko
- Engelhardt Institute of Molecular Biology RAS, 32 Vavilova St., 119991, Moscow, Russia
| | - Olga V Efremenkova
- Gause Institute of New Antibiotics, 11 Bol'shaya Pirogovskaya St., 119021, Moscow, Russia
| | - Alla A Glukhova
- Gause Institute of New Antibiotics, 11 Bol'shaya Pirogovskaya St., 119021, Moscow, Russia
| | - Yuliya V Boykova
- Gause Institute of New Antibiotics, 11 Bol'shaya Pirogovskaya St., 119021, Moscow, Russia
| | - Tatiana A Efimenko
- Gause Institute of New Antibiotics, 11 Bol'shaya Pirogovskaya St., 119021, Moscow, Russia
| | - Natalya V Kost
- Federal State Budgetary Scientific Institution "Mental Health Research Centre", 34 Kashirskoe Highway, 115522, Moscow, Russia
| | - Darya A Avdanina
- Research Center of Biotechnology RAS, 33 Leninsky Ave, 119071, Moscow, Russia
| | - Gulgina K Nuraeva
- Moscow Institute of Physics and Technology (National Research University), 9 Institutsky Alley, 141700, Dolgoprudny, Russia
| | - Ivan A Volkov
- Moscow Institute of Physics and Technology (National Research University), 9 Institutsky Alley, 141700, Dolgoprudny, Russia
| | - Sergey N Kochetkov
- Engelhardt Institute of Molecular Biology RAS, 32 Vavilova St., 119991, Moscow, Russia
| | - Alexander A Zhgun
- Research Center of Biotechnology RAS, 33 Leninsky Ave, 119071, Moscow, Russia
| |
Collapse
|
6
|
Guan H, Li Y, Zheng J, Liu N, Zhang J, Tan H. Important role of a LAL regulator StaR in the staurosporine biosynthesis and high-production of Streptomyces fradiae CGMCC 4.576. SCIENCE CHINA-LIFE SCIENCES 2019; 62:1638-1654. [PMID: 31820200 DOI: 10.1007/s11427-019-1597-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 11/26/2019] [Indexed: 01/27/2023]
Abstract
Staurosporine, belonging to indolocarbazole compounds, is regarded as an excellent lead compound for synthesizing antitumor agents as a potent inhibitor against various protein kinases. In this study, two separate clusters (cluster A and cluster B), corresponding to biosyntheses of K-252c (staurosporine aglycone) and sugar moiety, were identified in Streptomyces fradiae CGMCC 4.576 and heterologously expressed in Streptomyces coelicolor M1146 separately or together. StaR, a cluster-situated LAL family regulator, activates staurosporine biosynthesis by binding to the promoter regions of staO-staC and staG-staN. The conserved sequences GGGGG and GCGCG were found through gradually truncating promoters of staO and staG, and further determined by mutational experiments. Overexpression of staR with the supplementation of 0.01 g L-1 FeSO4 increased staurosporine production to 5.2-fold compared with that of the parental strain Streptomyces fradiae CGMCC 4.576 in GYM medium. Our results provided an approach for improvement of staurosporine production mediated by a positive regulator and established the basis for dissecting the regulatory mechanisms of other indolocarbazole compounds with clinical application value.
Collapse
Affiliation(s)
- Hanye Guan
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yue Li
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Jiazhen Zheng
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ning Liu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jihui Zhang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Huarong Tan
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China. .,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
| |
Collapse
|
7
|
Molecular Characterization of Streptomyces albogriseolus Excellent Mutants for Neomycin Production. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2019. [DOI: 10.22207/jpam.13.3.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
8
|
Niu G, Li Z, Huang P, Tan H. Engineering nucleoside antibiotics toward the development of novel antimicrobial agents. J Antibiot (Tokyo) 2019; 72:906-912. [DOI: 10.1038/s41429-019-0230-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/25/2019] [Accepted: 08/14/2019] [Indexed: 11/09/2022]
|
9
|
Strategy for efficient cloning of biosynthetic gene clusters from fungi. SCIENCE CHINA-LIFE SCIENCES 2019; 62:1087-1095. [DOI: 10.1007/s11427-018-9511-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Accepted: 02/27/2019] [Indexed: 12/20/2022]
|
10
|
Bua S, Osman SM, AlOthman Z, Supuran CT, Nocentini A. Benzenesulfonamides incorporating nitrogenous bases show effective inhibition of β-carbonic anhydrases from the pathogenic fungi Cryptococcus neoformans, Candida glabrata and Malassezia globosa. Bioorg Chem 2019; 86:39-43. [PMID: 30684862 DOI: 10.1016/j.bioorg.2019.01.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 12/12/2018] [Accepted: 01/17/2019] [Indexed: 12/12/2022]
Abstract
There is an urgent need for new chemotherapic agents to treat human fungal infections due to emerging and spreading globally resistance mechanisms. Among the new targets that have been recently investigated for the development of antifungal drugs there are the metallo-enzymes Carbonic Anhydrases (CAs, EC 4.2.1.1). The inhibition of the β-CAs identified in many pathogenic fungi leads to an impairment of parasite growth and virulence, which in turn leads to a significant anti-infective effect. Based on antifungal nucleoside antibiotics, the inhibition of the β-CAs from the resistance-showing fungi Candida glabrata (CgNce103), Cryptococcus neoformans (Can2) and Malasszia globosa (MgCA) with a series of benzenesulfonamides bearing nitrogenous bases, such as uracil and adenine, is here reported. Many such compounds display low nanomolar (<100 nM) inhibitory potency against Can2 and CgNce103, whereas the activity of MgCA is considerably less affected (inhibition constants in the range 138.8-5601.5 nM). The β-CAs inhibitory data were compared with those against α-class human ubiquitous isoforms. Interesting selective inhibitory activities for the target fungal CAs over hCA I and II were reported, which make nitrogenous base benzenesulfonamides interesting tools and leads for further investigations in search of new antifungal with innovative mechanisms of action.
Collapse
Affiliation(s)
- Silvia Bua
- University of Florence, NEUROFARBA Department, Via Ugo Schiff 6, 50019 Sesto Fiorentino, Italy
| | - Sameh M Osman
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Zeid AlOthman
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Claudiu T Supuran
- University of Florence, NEUROFARBA Department, Via Ugo Schiff 6, 50019 Sesto Fiorentino, Italy; Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia.
| | - Alessio Nocentini
- University of Florence, NEUROFARBA Department, Via Ugo Schiff 6, 50019 Sesto Fiorentino, Italy.
| |
Collapse
|
11
|
Hong H, Samborskyy M, Zhou Y, Leadlay PF. C-Nucleoside Formation in the Biosynthesis of the Antifungal Malayamycin A. Cell Chem Biol 2019; 26:493-501.e5. [DOI: 10.1016/j.chembiol.2018.12.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 08/22/2018] [Accepted: 12/04/2018] [Indexed: 01/01/2023]
|
12
|
Yin H, Wang W, Fan K, Li Z. Regulatory perspective of antibiotic biosynthesis in Streptomyces. SCIENCE CHINA-LIFE SCIENCES 2019; 62:698-700. [PMID: 30931496 DOI: 10.1007/s11427-019-9497-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 12/26/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Hanzhi Yin
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,School of Life Science, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Weishan Wang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Keqiang Fan
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Zilong Li
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
| |
Collapse
|
13
|
Enhancement of neomycin production by engineering the entire biosynthetic gene cluster and feeding key precursors in Streptomyces fradiae CGMCC 4.576. Appl Microbiol Biotechnol 2019; 103:2263-2275. [DOI: 10.1007/s00253-018-09597-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 12/18/2018] [Accepted: 12/20/2018] [Indexed: 01/20/2023]
|
14
|
Li D, Zhang J, Tian Y, Tan H. Enhancement of salinomycin production by ribosome engineering in Streptomyces albus. SCIENCE CHINA-LIFE SCIENCES 2019; 62:276-279. [PMID: 30659450 DOI: 10.1007/s11427-018-9474-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Accepted: 01/07/2019] [Indexed: 12/01/2022]
Affiliation(s)
- Dong Li
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jihui Zhang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Yuqing Tian
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Huarong Tan
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China. .,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
| |
Collapse
|
15
|
Li C, He H, Wang J, Liu H, Wang H, Zhu Y, Wang X, Zhang Y, Xiang W. Characterization of a LAL-type regulator NemR in nemadectin biosynthesis and its application for increasing nemadectin production in Streptomyces cyaneogriseus. SCIENCE CHINA-LIFE SCIENCES 2019; 62:394-405. [PMID: 30689104 DOI: 10.1007/s11427-018-9442-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 12/07/2018] [Indexed: 12/21/2022]
Abstract
Nemadectin, a macrocyclic lactone antibiotic, is produced by Streptomyces cyaneogriseus ssp. noncyanogenus. A methoxime derivative of nemadectin, moxdectin, has been widely used to control insect and helminth in animal health. Despite the importance of nemadectin, little attention has been paid to the regulation of nemadectin biosynthesis, which has hindered efforts to improve nemadectin production via genetic manipulation of regulatory genes. Here, we characterize the function of nemR, the cluster-situated regulatory gene encoding a LAL-family transcriptional regulator, in the nemadectin biosynthesis gene cluster of S. cyaneogriseus ssp. noncyanogenus NMWT1. NemR is shown to be essential for nemadectin production and found to directly activate the transcription of nemA1-1/A1-2/A2, nemC and nemA4/A3/E/D operons, but indirectly activate that of nemG and nemF. A highly conserved sequence 5'-TGGGGTGKATAGGGGGTA-3' (K=T/G) is verified to be essential for NemR binding. Moreover, four novel targets of NemR, including genes encoding an SsgA-like protein (TU94_12730), a methylmalonyl-CoA mutase (TU94_19950), a thioesterase of oligomycin biosynthesis (TU94_22425) and a MFS family transporter (TU94_24835) are identified. Overexpression of nemR significantly increased nemadectin production by 79.9%, in comparison with NMWT1, suggesting that nemR plays an important role in the nemadectin biosynthesis.
Collapse
Affiliation(s)
- Chuang Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.,School of Life Science, Northeast Agricultural University, Harbin, 150030, China.,College of Food and Bioengineering, Qiqihar University, Qiqihar, 161006, China
| | - Hairong He
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.,School of Life Science, Northeast Agricultural University, Harbin, 150030, China
| | - Jiabin Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.,School of Life Science, Northeast Agricultural University, Harbin, 150030, China
| | - Hui Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.,School of Life Science, Northeast Agricultural University, Harbin, 150030, China
| | - Haiyan Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Yajie Zhu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Xiangjing Wang
- School of Life Science, Northeast Agricultural University, Harbin, 150030, China
| | - Yanyan Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Wensheng Xiang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China. .,School of Life Science, Northeast Agricultural University, Harbin, 150030, China.
| |
Collapse
|
16
|
Li H, Hu P, Wang Y, Pan Y, Liu G. Enhancing the production of cephalosporin C through modulating the autophagic process of Acremonium chrysogenum. Microb Cell Fact 2018; 17:175. [PMID: 30424777 PMCID: PMC6233533 DOI: 10.1186/s12934-018-1021-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 11/01/2018] [Indexed: 11/12/2022] Open
Abstract
Background Autophagy is used for degradation of cellular components and nutrient recycling. Atg8 is one of the core proteins in autophagy and used as a marker for autophagic detection. However, the autophagy of filamentous fungi is poorly understood compared with that of Saccharomyces cerevisiae. Our previous study revealed that disruption of the autophagy related gene Acatg1 significantly enhanced cephalosporin C yield through reducing degradation of cephalosporin biosynthetic proteins in Acremonium chrysogenum, suggesting that modulation of autophagic process is one promising way to increase antibiotic production in A. chrysogenum. Results In this study, a S. cerevisiae ATG8 homologue gene Acatg8 was identified from A. chrysogenum. Acatg8 could complement the ATG8 mutation in S. cerevisiae, indicating that Acatg8 is a functional homologue of ATG8. Microscope observation demonstrated the fluorescently labeled AcAtg8 was localized in the cytoplasm and autophagosome of A. chrysogenum, and the expression of Acatg8 was induced by nutrient starvation. Gene disruption and genetic complementation revealed that Acatg8 is essential for autophagosome formation. Disruption of Acatg8 significantly reduced fungal conidiation and delayed conidial germination. Localization of GFP-AcAtg8 implied that autophagy is involved in the early phase of conidial germination. Similar to Acatg1, disruption of Acatg8 remarkably enhanced cephalosporin C yield. The cephalosporin C biosynthetic enzymes (isopenicillin N synthase PcbC and isopenicillin N epimerase CefD2) and peroxisomes were accumulated in the Acatg8 disruption mutant (∆Acatg8), which might be the main reasons for the enhancement of cephalosporin C production. However, the biomass of ΔAcatg8 decreased drastically at the late stage of fermentation, suggesting that autophagy is critical for A. chrysogenum cell survival under nutrition deprived condition. Disruption of Acatg8 also resulted in accumulation of mitochondria, which might produce more reactive oxygen species (ROS) which promotes fungal death. However, the premature death is unfavorable for cephalosporin C production. To solve this problem, a plasmid containing Acatg8 under control of the xylose/xylan-inducible promoter was introduced into ∆Acatg8. Conidiation and growth of the recombinant strain restored to the wild-type level in the medium supplemented with xylose, while the cephalosporin C production maintained at a high level even prolonged fermentation. Conclusions Our results demonstrated inducible expression of Acatg8 and disruption of Acatg8 remarkably increased cephalosporin C production. This study provides a promising approach for yield improvement of cephalosporin C in A. chrysogenum. Electronic supplementary material The online version of this article (10.1186/s12934-018-1021-9) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Honghua Li
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Pengjie Hu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Ying Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Yuanyuan Pan
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Gang Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China. .,University of Chinese Academy of Sciences, Beijing, 100049, China.
| |
Collapse
|
17
|
Wei J, He L, Niu G. Regulation of antibiotic biosynthesis in actinomycetes: Perspectives and challenges. Synth Syst Biotechnol 2018; 3:229-235. [PMID: 30417136 PMCID: PMC6215055 DOI: 10.1016/j.synbio.2018.10.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 09/27/2018] [Accepted: 10/17/2018] [Indexed: 02/08/2023] Open
Abstract
Actinomycetes are the main sources of antibiotics. The onset and level of production of each antibiotic is subject to complex control by multi-level regulators. These regulators exert their functions at hierarchical levels. At the lower level, cluster-situated regulators (CSRs) directly control the transcription of neighboring genes within the gene cluster. Higher-level pleiotropic and global regulators exert their functions mainly through modulating the transcription of CSRs. Advances in understanding of the regulation of antibiotic biosynthesis in actinomycetes have inspired us to engineer these regulators for strain improvement and antibiotic discovery.
Collapse
Affiliation(s)
- Junhong Wei
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400715, China
| | - Lang He
- Biotechnology Research Center, Southwest University, Chongqing, 400715, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, 400715, China
| | - Guoqing Niu
- Biotechnology Research Center, Southwest University, Chongqing, 400715, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, 400715, China
| |
Collapse
|