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Fu J, Liu X, Zhang M, Liu J, Li S, Jiang B, Wu L. Di-Isatropolone C, a Spontaneous Isatropolone C Dimer Derivative with Autophagy Activity. Molecules 2024; 29:1477. [PMID: 38611756 PMCID: PMC11013608 DOI: 10.3390/molecules29071477] [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: 02/28/2024] [Revised: 03/21/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Isatropolone C from Streptomyces sp. CPCC 204095 features a fused cyclopentadienone-tropolone-oxacyclohexadiene tricyclic moiety in its structure. Herein, we report an isatropolone C dimer derivative, di-isatropolone C, formed spontaneously from isatropolone C in methanol. Notably, the structure of di-isatropolone C resolved by NMR reveals a newly formed cyclopentane ring to associate the two isatropolone C monomers. The configurations of four chiral carbons, including a ketal one, in the cyclopentane ring are assigned using quantum NMR calculations and DP4+ probability. The plausible molecular mechanism for di-isatropolone C formation is proposed, in which complex dehydrogenative C-C bond coupling may have happened to connect the two isatropolone C monomers. Like isatropolone C, di-isatropolone C shows the biological activity of inducing autophagy in HepG2 cells.
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Affiliation(s)
| | | | | | | | | | - Bingya Jiang
- CAMS Key Laboratory of Synthetic Biology for Drug Innovation, NHC Key Laboratory of Biotechnology for Microbial Drugs, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China; (J.F.); (X.L.); (M.Z.); (J.L.); (S.L.)
| | - Linzhuan Wu
- CAMS Key Laboratory of Synthetic Biology for Drug Innovation, NHC Key Laboratory of Biotechnology for Microbial Drugs, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China; (J.F.); (X.L.); (M.Z.); (J.L.); (S.L.)
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2
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Caradec T, Trivelli X, Desmecht E, Peucelle V, Khalife J, Hartkoorn RC. Dactylosporolides: Glycosylated Macrolides from Dactylosporangium fulvum. JOURNAL OF NATURAL PRODUCTS 2022; 85:2714-2722. [PMID: 36512509 PMCID: PMC9791991 DOI: 10.1021/acs.jnatprod.2c00484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Indexed: 05/30/2023]
Abstract
A series of novel macrolides were discovered from the culture supernatant of the rare soil actinobacteria Dactylosporangium fulvum and named dactylosporolides A-C. The structure and absolute configuration of these dactylosporolides were defined using a combination of NMR structural elucidation and analysis of the dactylosporolide biosynthetic gene cluster. Together these data revealed dactylosporolides to be composed of a central 22-membered macrolactone with an internal hemiketal ring and a protruding ketide tail that were (poly)glycosylated at two distal parts. While bearing no antibiotic activity, these dactylosporolides displayed activity against Plasmodium falciparum 3D7.
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Affiliation(s)
- Thibault Caradec
- Univ.
Lille, CNRS, Inserm, CHU Lille, Institut Pasteur Lille, U1019—UMR
9017—CIIL—Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Xavier Trivelli
- Univ.
Lille, CNRS, INRAE, Centrale Lille, Univ. Artois, FR 2638—IMEC—Institut
Michel-Eugène Chevreul, Lille 59000, France
| | - Eva Desmecht
- Univ.
Lille, CNRS, Inserm, CHU Lille, Institut Pasteur Lille, U1019—UMR
9017—CIIL—Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Veronique Peucelle
- Univ.
Lille, CNRS, Inserm, CHU Lille, Institut Pasteur Lille, U1019—UMR
9017—CIIL—Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Jamal Khalife
- Univ.
Lille, CNRS, Inserm, CHU Lille, Institut Pasteur Lille, U1019—UMR
9017—CIIL—Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Ruben C. Hartkoorn
- Univ.
Lille, CNRS, Inserm, CHU Lille, Institut Pasteur Lille, U1019—UMR
9017—CIIL—Center for Infection and Immunity of Lille, F-59000 Lille, France
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Li L, Zhang M, Li S, Jiang B, Zhang J, Yu L, Liu H, Wu L. Isatropolone/isarubrolone C m from Streptomyces with biological activity of inducing incomplete autophagy. J Antibiot (Tokyo) 2022; 75:702-708. [PMID: 36224376 DOI: 10.1038/s41429-022-00575-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 09/17/2022] [Accepted: 09/28/2022] [Indexed: 11/09/2022]
Abstract
Isatropolones/isarubrolones are Streptomyces secondary metabolites featuring a tropolone ring in the pentacyclic scaffolds of these molecules. They are able to induce complete autophagy in human HepG2 cells. Here, methyl isatropolones (1-2) and isarubrolone (3) are identified from Streptomyces CPCC 204095. They all have a methyl tropolone ring in the pentacyclic scaffold of these molecules resolved by MS and NMR spectra. Biological activity assay indicates that isatropolone Cm (1) and isarubrolone Cm (3) induce incomplete autophagy in human HepG2 cells.
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Affiliation(s)
- Linli Li
- NHC Key Laboratory of Biotechnology of Antibiotics, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, People's Republic of China
- Department of Clinical Pharmacy, The Third Hospital of Hebei Medical University, 050051, Shijiazhuang, People's Republic of China
| | - Miaoqing Zhang
- NHC Key Laboratory of Biotechnology of Antibiotics, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, People's Republic of China
| | - Shufen Li
- NHC Key Laboratory of Biotechnology of Antibiotics, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, People's Republic of China.
| | - Bingya Jiang
- NHC Key Laboratory of Biotechnology of Antibiotics, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, People's Republic of China
| | - Jingpu Zhang
- NHC Key Laboratory of Biotechnology of Antibiotics, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, People's Republic of China
| | - Liyan Yu
- NHC Key Laboratory of Biotechnology of Antibiotics, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, People's Republic of China
| | - Hongyu Liu
- NHC Key Laboratory of Biotechnology of Antibiotics, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, People's Republic of China
| | - Linzhuan Wu
- NHC Key Laboratory of Biotechnology of Antibiotics, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, People's Republic of China.
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Ghosh S, Sarkar T, Chakraborty R, Shariati MA, Simal-Gandara J. Nature's palette: An emerging frontier for coloring dairy products. Crit Rev Food Sci Nutr 2022; 64:1508-1552. [PMID: 36066466 DOI: 10.1080/10408398.2022.2117785] [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] [Indexed: 11/03/2022]
Abstract
Consumers all across the world are looking for the most delectable and appealing foods, while also demanding products that are safer, more nutritious, and healthier. Substitution of synthetic colorants with natural colorants has piqued consumer and market interest in recent years. Due to increasing demand, extensive research has been conducted to find natural and safe food additives, such as natural pigments, that may have health benefits. Natural colorants are made up of a variety of pigments, many of which have significant biological potential. Because of the promising health advantages, natural colorants are gaining immense interest in the dairy industry. This review goes over the use of various natural colorants in dairy products which can provide desirable color as well as positive health impacts. The purpose of this review is to provide an in-depth look into the field of food (natural or synthetic) colorants applied in dairy products as well as their potential health benefits, safety, general trends, and future prospects in food science and technology. In this paper, we listed a plethora of applications of natural colorants in various milk-based products.
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Affiliation(s)
- Susmita Ghosh
- Department of Food Technology and Biochemical Engineering, Jadavpur University, Kolkata, India
| | - Tanmay Sarkar
- Malda Polytechnic, West Bengal State Council of Technical Education, Government of West Bengal, Malda, India
| | - Runu Chakraborty
- Department of Food Technology and Biochemical Engineering, Jadavpur University, Kolkata, India
| | - Mohammad Ali Shariati
- Research Department, K. G. Razumovsky Moscow State University of Technologies and Management (The First Cossack University), Moscow, Russian Federation
- Department of Scientific Research, Russian State Agrarian University - Moscow Timiryazev Agricultural Academy, Moscow, Russian Federation
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Analytical Chemistry and Food Science Department, Faculty of Science, Universidade de Vigo, Ourense, E32004, Spain
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Mungan MD, Harbig TA, Perez NH, Edenhart S, Stegmann E, Nieselt K, Ziemert N. Secondary Metabolite Transcriptomic Pipeline (SeMa-Trap), an expression-based exploration tool for increased secondary metabolite production in bacteria. Nucleic Acids Res 2022; 50:W682-W689. [PMID: 35580059 PMCID: PMC9252823 DOI: 10.1093/nar/gkac371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/20/2022] [Accepted: 04/29/2022] [Indexed: 11/14/2022] Open
Abstract
For decades, natural products have been used as a primary resource in drug discovery pipelines to find new antibiotics, which are mainly produced as secondary metabolites by bacteria. The biosynthesis of these compounds is encoded in co-localized genes termed biosynthetic gene clusters (BGCs). However, BGCs are often not expressed under laboratory conditions. Several genetic manipulation strategies have been developed in order to activate or overexpress silent BGCs. Significant increases in production levels of secondary metabolites were indeed achieved by modifying the expression of genes encoding regulators and transporters, as well as genes involved in resistance or precursor biosynthesis. However, the abundance of genes encoding such functions within bacterial genomes requires prioritization of the most promising ones for genetic manipulation strategies. Here, we introduce the ‘Secondary Metabolite Transcriptomic Pipeline’ (SeMa-Trap), a user-friendly web-server, available at https://sema-trap.ziemertlab.com. SeMa-Trap facilitates RNA-Seq based transcriptome analyses, finds co-expression patterns between certain genes and BGCs of interest, and helps optimize the design of comparative transcriptomic analyses. Finally, SeMa-Trap provides interactive result pages for each BGC, allowing the easy exploration and comparison of expression patterns. In summary, SeMa-Trap allows a straightforward prioritization of genes that could be targeted via genetic engineering approaches to (over)express BGCs of interest.
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Affiliation(s)
- Mehmet Direnç Mungan
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany.,Interfaculty Institute for Bioinformatics and Medical Informatics (IBMI), University of Tübingen, 72076 Tübingen, Germany.,German Center for Infection Research (DZIF), Partnersite Tübingen, 72076 Tübingen, Germany
| | - Theresa Anisja Harbig
- Interfaculty Institute for Bioinformatics and Medical Informatics (IBMI), University of Tübingen, 72076 Tübingen, Germany
| | - Naybel Hernandez Perez
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
| | - Simone Edenhart
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
| | - Evi Stegmann
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany.,German Center for Infection Research (DZIF), Partnersite Tübingen, 72076 Tübingen, Germany
| | - Kay Nieselt
- Interfaculty Institute for Bioinformatics and Medical Informatics (IBMI), University of Tübingen, 72076 Tübingen, Germany
| | - Nadine Ziemert
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany.,Interfaculty Institute for Bioinformatics and Medical Informatics (IBMI), University of Tübingen, 72076 Tübingen, Germany.,German Center for Infection Research (DZIF), Partnersite Tübingen, 72076 Tübingen, Germany
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Liu J, Liu X, Fu J, Jiang B, Li S, Wu L. Dihydroisatropolone C from Streptomyces and Its Implication in Tropolone-Ring Construction for Isatropolone Biosynthesis. Molecules 2022; 27:molecules27092882. [PMID: 35566231 PMCID: PMC9099902 DOI: 10.3390/molecules27092882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/28/2022] [Accepted: 04/28/2022] [Indexed: 02/01/2023] Open
Abstract
Isatropolones/isarubrolones are actinomycete secondary metabolites featuring a tropolone-ring in their structures. From the isatropolone/isarubrolone producer Streptomyces sp. CPCC 204095, 7,12-dihydroisatropolone C (H2ITC) is discovered and identified as a mixture of two interchangeable diastereomers differing in the C-6 configuration. As a major metabolite in the mycelial growth period of Streptomyces sp. CPCC 204095, H2ITC can be oxidized spontaneously to isatropolone C (ITC), suggesting H2ITC is the physiological precursor of ITC. Characterization of H2ITC makes us propose dihydrotropolone-ring construction in the biosynthesis of isatropolones.
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