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Geudens N, Martins JC. Cyclic Lipodepsipeptides From Pseudomonas spp. - Biological Swiss-Army Knives. Front Microbiol 2018; 9:1867. [PMID: 30158910 PMCID: PMC6104475 DOI: 10.3389/fmicb.2018.01867] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 07/25/2018] [Indexed: 12/20/2022] Open
Abstract
Cyclic lipodepsipeptides produced by Pseudomonas spp. (Ps-CLPs) are biosurfactants that constitute a diverse class of versatile bioactive natural compounds with promising application potential. While chemically diverse, they obey a common structural blue-print, allowing the definition of 14 distinct groups with multiple structurally homologous members. In addition to antibacterial and antifungal properties the reported activity profile of Ps-CLPs includes their effect on bacterial motility, biofilm formation, induced defense responses in plants, their insecticidal activity and anti-proliferation effects on human cancer cell-lines. To further validate their status of potential bioactive substances, we assessed the results of 775 biological tests on 51 Ps-CLPs available from literature. From this, a fragmented view emerges. Taken as a group, Ps-CLPs present a broad activity profile. However, reports on individual Ps-CLPs are often much more limited in the scope of organisms that are challenged or activities that are explored. As a result, our analysis shows that the available data is currently too sparse to allow biological function to be correlated to a particular group of Ps-CLPs. Consequently, certain generalizations that appear in literature with respect to the biological activities of Ps-CLPs should be nuanced. This notwithstanding, the data for the two most extensively studied Ps-CLPs does indicate they can display activities against various biological targets. As the discovery of novel Ps-CLPs accelerates, current challenges to complete and maintain a useful overview of biological activity are discussed.
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Affiliation(s)
- Niels Geudens
- NMR and Structure Analysis Unit, Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - José C Martins
- NMR and Structure Analysis Unit, Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
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Scaloni A, Dalla Serra M, Amodeo P, Mannina L, Vitale R, Segre A, Cruciani O, Lodovichetti F, Greco M, Fiore A, Gallo M, D'Ambrosio C, Coraiola M, Menestrina G, Graniti A, Fogliano V. Structure, conformation and biological activity of a novel lipodepsipeptide from Pseudomonas corrugata: cormycin A. Biochem J 2005; 384:25-36. [PMID: 15196052 PMCID: PMC1134085 DOI: 10.1042/bj20040422] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Cationic lipodepsipeptides from Pseudomonas spp. have been characterized for their structural and antimicrobial properties. In the present study, the structure of a novel lipodepsipeptide, cormycin A, produced in culture by the tomato pathogen Pseudomonas corrugata was elucidated by combined protein chemistry, mass spectrometry and two-dimensional NMR procedures. Its peptide moiety corresponds to L-Ser-D-Orn-L-Asn-D-Hse-L-His-L-aThr-Z-Dhb-L-Asp(3-OH)-L-Thr(4-Cl) [where Orn represents ornithine, Hse is homoserine, aThr is allo-threonine, Z-Dhb is 2,3-dehydro-2-aminobutanoic acid, Asp(3-OH) is 3-hydroxyaspartic acid and Thr(4-Cl) is 4-chlorothreonine], with the terminal carboxy group closing a macrocyclic ring with the hydroxy group of the N-terminal serine residue. This is, in turn, N-acylated by 3,4-dihydroxy-esadecanoate. In aqueous solution, cormycin A showed a rather compact structure, being derived from an inward orientation of some amino acid side chains and from the 'hairpin-bent' conformation of the lipid, due to inter-residue interactions involving its terminal part. Cormycin was significantly more active than the other lipodepsipeptides from Pseudomonas spp., as demonstrated by phytotoxicity and antibiosis assays, as well as by red-blood-cell lysis. Differences in biological activity were putatively ascribed to its weak positive net charge at neutral pH. Planar lipid membrane experiments showed step-like current transitions, suggesting that cormycin is able to form pores. This ability was strongly influenced by the phospholipid composition of the membrane and, in particular, by the presence of sterols. All of these findings suggest that cormycin derivatives could find promising applications, either as antifungal compounds for topical use or as post-harvest biocontrol agents.
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Affiliation(s)
- Andrea Scaloni
- *Proteomics and Mass Spectrometry Laboratory, I.S.P.A.A.M., National Research Council, 80147 Naples, Italy
| | - Mauro Dalla Serra
- †ITC and Institute of Biophysics, National Research Council, 38050 Povo (Trento), Italy
| | - Pietro Amodeo
- ‡Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, 80078 Pozzuoli (Naples), Italy
| | - Luisa Mannina
- §Dipartimento di Scienze e Tecnologie Agroalimentari, Ambientali e Microbiologiche, Università di Molise, 86100 Campobasso, Italy
| | - Rosa Maria Vitale
- ∥Istituto di Biostrutture e Bioimmagini, Consiglio Nazionale delle Ricerche, 80134 Napoli, Italy
| | - Anna Laura Segre
- ¶Institute of Chemical Methodologies, National Research Council, 00016 Monterotondo Stazione (Rome), Italy
| | - Oscar Cruciani
- ¶Institute of Chemical Methodologies, National Research Council, 00016 Monterotondo Stazione (Rome), Italy
| | - Francesca Lodovichetti
- ¶Institute of Chemical Methodologies, National Research Council, 00016 Monterotondo Stazione (Rome), Italy
| | - Maria Luigia Greco
- **Dipartimento di Biologia e Patologia Vegetale, Università di Bari, 70126 Bari, Italy
| | - Alberto Fiore
- ††Dipartimento di Scienza degli Alimenti, Università di Napoli “Federico II”, Parco Gussone, Edificio 84, 80055 Portici (Naples), Italy
| | - Monica Gallo
- ††Dipartimento di Scienza degli Alimenti, Università di Napoli “Federico II”, Parco Gussone, Edificio 84, 80055 Portici (Naples), Italy
| | - Chiara D'Ambrosio
- *Proteomics and Mass Spectrometry Laboratory, I.S.P.A.A.M., National Research Council, 80147 Naples, Italy
| | - Manuela Coraiola
- †ITC and Institute of Biophysics, National Research Council, 38050 Povo (Trento), Italy
| | - Gianfranco Menestrina
- †ITC and Institute of Biophysics, National Research Council, 38050 Povo (Trento), Italy
| | - Antonio Graniti
- **Dipartimento di Biologia e Patologia Vegetale, Università di Bari, 70126 Bari, Italy
| | - Vincenzo Fogliano
- ††Dipartimento di Scienza degli Alimenti, Università di Napoli “Federico II”, Parco Gussone, Edificio 84, 80055 Portici (Naples), Italy
- To whom correspondence should be addressed (email )
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Abstract
Endophytic microorganisms are found in virtually every higher plant on earth. These organisms reside in the living tissues of the host plant and do so in a variety of relationships, ranging from symbiotic to pathogenic. Endophytes may contribute to their host plant by producing a plethora of substances that provide protection and survival value to the plant. Ultimately, these compounds, once isolated and characterized, may also have potential for use in modern medicine. Novel antibiotics, antimycotics, immunosuppressants, and anticancer compounds are only a few examples of what has been found after the isolation and culturing of individual endophytes followed by purification and characterization of some of their natural products. The potential of finding new drugs that may be effective candidates for treating newly developing diseases in humans is great.
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Abstract
Endophytic microorganisms are to be found in virtually every plant on earth. These organisms reside in the living tissues of the host plant and do so in a variety of relationships, ranging from symbiotic to slightly pathogenic. Because of what appears to be their contribution to the host plant, the endophytes may produce a plethora of substances of potential use to modern medicine, agriculture, and industry. Novel antibiotics, antimycotics, immunosuppressants, and anticancer compounds are only a few examples of what has been found after the isolation, culture, purification, and characterization of some choice endophytes in the recent past. The potential prospects of finding new drugs that may be effective candidates for treating newly developing diseases in humans, plants, and animals are great.
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Affiliation(s)
- Gary Strobel
- Department of Plant Sciences, Montana State University, Bozeman, Montana 59717, USA.
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Castillo U, Harper JK, Strobel GA, Sears J, Alesi K, Ford E, Lin J, Hunter M, Maranta M, Ge H, Yaver D, Jensen JB, Porter H, Robison R, Millar D, Hess WM, Condron M, Teplow D. Kakadumycins, novel antibiotics from Streptomyces sp NRRL 30566, an endophyte of Grevillea pteridifolia. FEMS Microbiol Lett 2003; 224:183-90. [PMID: 12892881 DOI: 10.1016/s0378-1097(03)00426-9] [Citation(s) in RCA: 163] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
An endophytic streptomycete (NRRL 30566) is described and partially characterized from a fern-leaved grevillea (Grevillea pteridifolia) tree growing in the Northern Territory of Australia. This endophytic streptomycete produces, in culture, novel antibiotics - the kakadumycins. Methods are outlined for the production and chemical characterization of kakadumycin A and related compounds. This antibiotic is structurally related to a quinoxaline antibiotic, echinomycin. Each contains, by virtue of their amino acid compositions, alanine, serine and an unknown amino acid. Other biological, spectral and chromatographic differences between these two compounds occur and are given. Kakadumycin A has wide spectrum antibiotic activity, especially against Gram-positive bacteria, and it generally displays better bioactivity than echinomycin. For instance, against Bacillus anthracis strains, kakadumycin A has minimum inhibitory concentrations of 0.2-0.3 microg x ml(-1) in contrast to echinomycin at 1.0-1.2 microg x ml(-1). Both echinomycin and kakadumycin A have impressive activity against the malarial parasite Plasmodium falciparum with LD(50)s in the range of 7-10 ng x ml(-1). In macromolecular synthesis assays both kakadumycin A and echinomycin have similar effects on the inhibition of RNA synthesis. It appears that the endophytic Streptomyces sp. offer some promise for the discovery of novel antibiotics with pharmacological potential.
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Affiliation(s)
- Uvidelio Castillo
- Department of Plant Sciences, Montana State University, Bozeman, MT 59717, USA
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Castillo UF, Strobel GA, Ford EJ, Hess WM, Porter H, Jensen JB, Albert H, Robison R, Condron MAM, Teplow DB, Stevens D, Yaver D. Munumbicins, wide-spectrum antibiotics produced by Streptomyces NRRL 30562, endophytic on Kennedia nigriscans. MICROBIOLOGY (READING, ENGLAND) 2002; 148:2675-2685. [PMID: 12213914 DOI: 10.1099/00221287-148-9-2675] [Citation(s) in RCA: 258] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Munumbicins A, B, C and D are newly described antibiotics with a wide spectrum of activity against many human as well as plant pathogenic fungi and bacteria, and a Plasmodium sp. These compounds were obtained from Streptomyces NRRL 3052, which is endophytic in the medicinal plant snakevine (Kennedia nigriscans), native to the Northern Territory of Australia. This endophyte was cultured, the broth was extracted with an organic solvent and the contents of the residue were purified by bioassay-guided HPLC. The major components were four functionalized peptides with masses of 1269.6, 1298.5, 1312.5 and 1326.5 Da. Numerous other related compounds possessing bioactivity, with differing masses, were also present in the culture broth extract in lower quantities. With few exceptions, the peptide portion of each component contained only the common amino acids threonine, aspartic acid (or asparagine), glutamic acid (or glutamine), valine and proline, in varying ratios. The munumbicins possessed widely differing biological activities depending upon the target organism. For instance, munumbicin B had an MIC of 2.5 microg x ml(-1) against a methicillin-resistant strain of Staphylococcus aureus, whereas munumbicin A was not active against this organism. In general, the munumbicins demonstrated activity against Gram-positive bacteria such as Bacillus anthracis and multidrug-resistant Mycobacterium tuberculosis. However, the most impressive biological activity of any of the munumbicins was that of munumbicin D against the malarial parasite Plasmodium falciparum, having an IC(50) of 4.5+/-0.07 ng x ml(-1). This report also describes the potential of the munumbicins in medicine and agriculture.
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Affiliation(s)
| | - Gary A Strobel
- Dept of Plant Sciences, Montana State University, Bozeman, MT 59717, USA1
| | - Eugene J Ford
- Dept of Plant Sciences, Montana State University, Bozeman, MT 59717, USA1
| | - Wilford M Hess
- Dept of Botany and Range Sciences2 and Dept of Microbiology3, Brigham Young University, Provo, UT 84602, USA
| | - Heidi Porter
- Dept of Botany and Range Sciences2 and Dept of Microbiology3, Brigham Young University, Provo, UT 84602, USA
| | - James B Jensen
- Dept of Botany and Range Sciences2 and Dept of Microbiology3, Brigham Young University, Provo, UT 84602, USA
| | - Heather Albert
- Dept of Botany and Range Sciences2 and Dept of Microbiology3, Brigham Young University, Provo, UT 84602, USA
| | - Richard Robison
- Dept of Botany and Range Sciences2 and Dept of Microbiology3, Brigham Young University, Provo, UT 84602, USA
| | - Margret A M Condron
- Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA4
| | - David B Teplow
- Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA4
| | - Dennis Stevens
- Infectious Diseases Section, Veterans Affairs Medical Center, 500 West Fort St, Boise, ID 83702 and Dept of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA5
| | - Debbie Yaver
- Novozymes Biotech Inc., 1445 Drew Ave, Davis, CA 95616, USA6
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Fogliano V, Ballio A, Gallo M, Woo S, Scala F, Lorito M. Pseudomonas lipodepsipeptides and fungal cell wall-degrading enzymes act synergistically in biological control. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2002; 15:323-333. [PMID: 12026170 DOI: 10.1094/mpmi.2002.15.4.323] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Pseudomonas syringae pv. syringae strain B359 secreted two main lipodepsipeptides (LDPs), syringomycin E (SRE) and syringopeptin 25A (SP25A), together with at least four types of cell wall-degrading enzymes (CWDEs). In antifungal bioassays, the purified toxins SRE and SP25A interacted synergistically with chitinolytic and glucanolytic enzymes purified from the same bacterial strain or from the biocontrol fungus Trichoderma atroviride strain P1. The synergism between LDPs and CWDEs occurred against all seven different fungal species tested and P. syringae itself, with a level dependent on the enzyme used to permeabilize the microbial cell wall. The antifungal activity of SP25A was much more increased by the CWDE action than was that of the smaller SRE, suggesting a stronger antifungal role for SP25A. In vivo biocontrol assays were performed by using P. syringae alone or in combination with T. atroviride, including a Trichoderma endochitinase knock-out mutant in place of the wild type and a chitinase-specific enzyme inhibitor. These experiments clearly indicate that the synergistic interaction LDPs-CWDEs is involved in the antagonistic mechanism of P. syringae, and they support the concept that a more effective disease control is given by the combined action of the two agents.
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Affiliation(s)
- Vincenzo Fogliano
- Dipartimento di Scienza degli Alimenti, Università di Napoli Federico II, Italy
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Sun X, Zhang YZ, Zeckner D, Current W, Chen SH. Synthesis and evaluation of novel pseudomycin side-chain analogues. Part 3. Bioorg Med Chem Lett 2001; 11:3055-9. [PMID: 11714609 DOI: 10.1016/s0960-894x(01)00627-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
To increase the therapeutic utility of C-18 side-chain bearing pseudomycin analogue 2, we prepared additional analogues and prodrugs of 2 containing further modifications at various positions within its core structure. Each of the newly synthesized derivatives (10-15) exhibited reduced tail vein toxicity relative to the parent compound. Some of the new pseudomycin derivatives (e.g., 14) also showed improved in vivo antifungal activity relative to its corresponding parent compound.
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Affiliation(s)
- X Sun
- Lilly Research Laboratories, A Division of Eli Lilly and Company, Lilly Corporate Center, Indianapolis, IN 46285, USA
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Sun X, Zeckner DJ, Current WL, Boyer R, McMillian C, Yumibe N, Chen SH. N-acyloxymethyl carbamate linked prodrugs of pseudomycins are novel antifungal agents. Bioorg Med Chem Lett 2001; 11:1875-9. [PMID: 11459651 DOI: 10.1016/s0960-894x(01)00333-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We describe herein the synthesis, bioconversion, antifungal activity, and preliminary toxicology evaluation of a series of N-acyloxymethyl carbamate linked triprodrugs of pseudomycins. The syntheses of these prodrugs (3-6) were achieved via simple N-acylation of PSB (1) or PSC' (2) with various prodrug linkers (7-9). As expected, upon incubation with mouse and/or human plasma, many of these prodrugs (3, 5, and 6) were converted to the parent compound within a few hours. Of particular significance, two pseudomycin triprodrugs (5 and 6) showed excellent in vivo efficacy against systemic Candidiasis without tail vein irritation being observed.
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Affiliation(s)
- X Sun
- Lilly Research Laboratories, A Division of Eli Lilly and Company, Lilly Corporate Center, 46285, Indianapolis, IN, USA
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Sun X, Zeckner D, Zhang Y, Sachs RK, Current WL, Rodriguez M, Chen SH. Prodrugs of 3-amido bearing pseudomycin analogues: novel antifungal agents. Bioorg Med Chem Lett 2001; 11:1881-4. [PMID: 11459652 DOI: 10.1016/s0960-894x(01)00335-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
With the aim of identifying safer pseudomycin derivatives, we synthesized and evaluated a number of N-acyloxymethyl carbamate linked prodrugs of 3-amido pseudomycin analogues. To our satisfaction, all of the prodrug-amide combinations prepared exhibited good in vivo efficacy against murine Candidiasis. When evaluated in a dose elevation study, all of the newly synthesized combinations (e.g., 4A, 6A, 8A, and 8B) demonstrated improved toxicity profiles in comparison to their corresponding 3-amides as well as the parent pseudomycin B.
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Affiliation(s)
- X Sun
- Lilly Research Laboratory, A Division of Eli Lilly and Company, Lilly Corporate Center, IN 46285, Indianapolis, USA
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