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Nepomuceno VM, Tylor KM, Carlson S, Federle MJ, Murphy BT, Perez Morales T. A Streptomyces tendae Specialized Metabolite Inhibits Quorum Sensing in Group A Streptococcus. Microbiol Spectr 2023; 11:e0527922. [PMID: 37284782 PMCID: PMC10434017 DOI: 10.1128/spectrum.05279-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 05/19/2023] [Indexed: 06/08/2023] Open
Abstract
Quorum sensing (QS) is a means of bacterial communication accomplished by microbe-produced signals and sensory systems. QS systems regulate important population-wide behaviors in bacteria, including secondary metabolite production, swarming motility, and bioluminescence. The human pathogen Streptococcus pyogenes (group A Streptococcus [GAS]) utilizes Rgg-SHP QS systems to regulate biofilm formation, protease production, and activation of cryptic competence pathways. Given their reliance on small-molecule signals, QS systems are attractive targets for small-molecule modulators that would then affect gene expression. In this study, a high-throughput luciferase assay was employed to screen an Actinobacteria-derived secondary metabolite (SM) fraction library to identify small molecule inhibitors of Rgg regulation. A metabolite produced by Streptomyces tendae D051 was found to be a general inhibitor of GAS Rgg-mediated QS. Herein, we describe the biological activity of this metabolite as a QS inhibitor. IMPORTANCE Streptococcus pyogenes, a human pathogen known for causing infections such as pharyngitis and necrotizing fasciitis, uses quorum sensing (QS) to regulate social responses in its environment. Previous studies have focused on disrupting QS as a means to control specific bacterial signaling outcomes. In this work, we identified and described the activity of a naturally derived S. pyogenes QS inhibitor. This study demonstrates that the inhibitor affects three separate but similar QS signaling pathways.
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Affiliation(s)
- Vanessa M. Nepomuceno
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Kaitlyn M. Tylor
- Department of Microbiology and Immunology, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Skylar Carlson
- Department of Chemistry, University of the Pacific, Stockton, California, USA
| | - Michael J. Federle
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Brian T. Murphy
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Tiara Perez Morales
- Biological Sciences Department, Benedictine University, Lisle, Illinois, USA
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2
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Lee JH, Ma R, Nguyen L, Khan S, Qader M, Mpofu E, Shetye G, Krull NK, Augustinović M, Omarsdottir S, Cho S, Franzblau SG, Murphy BT. Discovery of a New Antibiotic Demethoxytetronasin Using a Dual-Sided Agar Plate Assay (DAPA). ACS Infect Dis 2023; 9:1593-1601. [PMID: 37450563 PMCID: PMC10426401 DOI: 10.1021/acsinfecdis.3c00171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Indexed: 07/18/2023]
Abstract
For over a century, researchers have cultured microorganisms together on solid support─typically agar─in order to observe growth inhibition via antibiotic production. These simple bioassays have been critical to both academic researchers that study antibiotic production in microorganisms and to the pharmaceutical industry's global effort to discover drugs. Despite the utility of agar assays to researchers around the globe, several limitations have prevented their widespread adoption in advanced high-throughput compound discovery and dereplication campaigns. To address a list of specific shortcomings, we developed the dual-sided agar plate assay (DAPA), which exists in a 96-well plate format, allows microorganisms to compete through opposing sides of a solid support in individual wells, is amenable to high-throughput screening and automation, is reusable, and is low-cost. Herein, we validate the use of DAPA as a tool for drug discovery and show its utility to discover new antibiotic natural products. From the screening of 217 bacterial isolates on multiple nutrient media against 3 pathogens, 55 hits were observed, 9 known antibiotics were dereplicated directly from agar plugs, and a new antibiotic, demethoxytetronasin (1), was isolated from a Streptomyces sp. These results demonstrate that DAPA is an effective, accessible, and low-cost tool to screen, dereplicate, and prioritize bacteria directly from solid support in the front end of antibiotic discovery pipelines.
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Affiliation(s)
- Jung-Ho Lee
- Department
of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago,, 833 S. Wood Street, Chicago, Illinois 60612, United States
| | - Rui Ma
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Linh Nguyen
- Department
of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago,, 833 S. Wood Street, Chicago, Illinois 60612, United States
- Institute
of Marine Biochemistry, Vietnam Academy
of Science and Technology, Nghiado, Caugiay, Hanoi 11307, Vietnam
| | - Shahebraj Khan
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Mallique Qader
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Enock Mpofu
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Gauri Shetye
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Nyssa K. Krull
- Department
of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago,, 833 S. Wood Street, Chicago, Illinois 60612, United States
| | - Mario Augustinović
- Department
of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago,, 833 S. Wood Street, Chicago, Illinois 60612, United States
| | - Sesselja Omarsdottir
- Faculty
of Pharmaceutical Sciences, University of
Iceland, Hagi, Hofsvallagata 53, Reykjavík IS-107, Iceland
| | - Sanghyun Cho
- Department
of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago,, 833 S. Wood Street, Chicago, Illinois 60612, United States
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Scott G. Franzblau
- Department
of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago,, 833 S. Wood Street, Chicago, Illinois 60612, United States
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Brian T. Murphy
- Department
of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago,, 833 S. Wood Street, Chicago, Illinois 60612, United States
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, United States
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Bergsten TM, Li K, Lantvit DD, Murphy BT, Burdette JE. Kaempferol, a Phytoprogestin, Induces a Subset of Progesterone-Regulated Genes in the Uterus. Nutrients 2023; 15:1407. [PMID: 36986136 PMCID: PMC10051346 DOI: 10.3390/nu15061407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/27/2023] [Accepted: 03/07/2023] [Indexed: 03/17/2023] Open
Abstract
Progesterone functions as a steroid hormone involved in female reproductive physiology. While some reproductive disorders manifest with symptoms that can be treated by progesterone or synthetic progestins, recent data suggest that women also seek botanical supplements to alleviate these symptoms. However, botanical supplements are not regulated by the U.S. Food and Drug Administration and therefore it is important to characterize and quantify the inherent active compounds and biological targets of supplements within cellular and animal systems. In this study, we analyzed the effect of two natural products, the flavonoids, apigenin and kaempferol, to determine their relationship to progesterone treatment in vivo. According to immunohistochemical analysis of uterine tissue, kaempferol and apigenin have some progestogenic activity, but do not act in exactly the same manner as progesterone. More specifically, kaempferol treatment did not induce HAND2, did not change proliferation, and induced ZBTB16 expression. Additionally, while apigenin treatment did not appear to dramatically affect transcripts, kaempferol treatment altered some transcripts (44%) in a similar manner to progesterone treatment but had some unique effects as well. Kaempferol regulated primarily unfolded protein response, androgen response, and interferon-related transcripts in a similar manner to progesterone. However, the effects of progesterone were more significant in regulating thousands of transcripts making kaempferol a selective modifier of signaling in the mouse uterus. In summary, the phytoprogestins, apigenin and kaempferol, have progestogenic activity in vivo but also act uniquely.
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Affiliation(s)
| | | | | | | | - Joanna E. Burdette
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois Chicago, Chicago, IL 60607, USA
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4
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Corona‐Avila I, Lee J, Hernandez A, Krull N, Augustinovic M, Jones D, Ndekwe T, Murphy BT. Isolation and Characterization of Antimicrobials from Icelandic Aquatic Bacteria. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.0r442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Antonio Hernandez
- Department of Pharmaceutical SciencesUniversity of Illinois at ChicagoChicagoIL
| | - Nyssa Krull
- Department of Pharmaceutical SciencesUniversity of Illinois at ChicagoChicagoIL
| | - Mario Augustinovic
- Department of Pharmaceutical SciencesUniversity of Illinois at ChicagoChicagoIL
| | | | - Tatyana Ndekwe
- Department of Pharmaceutical SciencesUniversity of Illinois at ChicagoChicagoIL
| | - Brian T. Murphy
- Department of Pharmaceutical SciencesUniversity of Illinois at ChicagoChicagoIL
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Clark CM, Hernandez A, Mullowney MW, Fitz-Henley J, Li E, Romanowski SB, Pronzato R, Manconi R, Sanchez LM, Murphy BT. Relationship between bacterial phylotype and specialized metabolite production in the culturable microbiome of two freshwater sponges. ISME Commun 2022; 2:22. [PMID: 37938725 PMCID: PMC9723699 DOI: 10.1038/s43705-022-00105-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 11/09/2023]
Abstract
Microbial drug discovery programs rely heavily on accessing bacterial diversity from the environment to acquire new specialized metabolite (SM) lead compounds for the therapeutic pipeline. Therefore, knowledge of how commonly culturable bacterial taxa are distributed in nature, in addition to the degree of variation of SM production within those taxa, is critical to informing these front-end discovery efforts and making the overall sample collection and bacterial library creation process more efficient. In the current study, we employed MALDI-TOF mass spectrometry and the bioinformatics pipeline IDBac to analyze diversity within phylotype groupings and SM profiles of hundreds of bacterial isolates from two Eunapius fragilis freshwater sponges, collected 1.5 km apart. We demonstrated that within two sponge samples of the same species, the culturable bacterial populations contained significant overlap in approximate genus-level phylotypes but mostly nonoverlapping populations of isolates when grouped lower than the level of genus. Further, correlations between bacterial phylotype and SM production varied at the species level and below, suggesting SM distribution within bacterial taxa must be analyzed on a case-by-case basis. Our results suggest that two E. fragilis freshwater sponges collected in similar environments can exhibit large culturable diversity on a species-level scale, thus researchers should scrutinize the isolates with analyses that take both phylogeny and SM production into account to optimize the chemical space entering into a downstream bacterial library.
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Affiliation(s)
- Chase M Clark
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - Antonio Hernandez
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - Michael W Mullowney
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - Jhewelle Fitz-Henley
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - Emma Li
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - Sean B Romanowski
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - Roberto Pronzato
- Dipartimento di Scienze della Terra, dell'Ambiente e della Vita, Università di Genova, Genova, Italy
| | - Renata Manconi
- Dipartimento Medicina Veterinaria, Università di Sassari, Sassari, Italy
| | - Laura M Sanchez
- Department of Chemistry and Biochemistry, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA, 95064, USA
| | - Brian T Murphy
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA.
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6
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Li K, Diakite D, Austin J, Lee J, Lantvit DD, Murphy BT, Burdette JE. The Flavonoid Baicalein Negatively Regulates Progesterone Target Genes in the Uterus in Vivo. J Nat Prod 2022; 85:237-247. [PMID: 34935393 PMCID: PMC9164990 DOI: 10.1021/acs.jnatprod.1c01008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Baicalein is a flavonoid extracted from the root of Scutellaria baicalensis (Chinese skullcap) and is consumed as part of this botanical dietary supplement to reduce oxidative stress, pain, and inflammation. We previously reported that baicalein can also modify receptor signaling through the progesterone receptor (PR) and glucocorticoid receptor (GR) in vitro, which is interesting due to the well-established roles of both PR and GR in reducing inflammation. To understand the effects of baicalein on PR and GR signaling in vivo in the uterus, ovariectomized CD-1 mice were treated with DMSO, progesterone (P4), baicalein, P4 with baicalein, and P4 with RU486, a PR antagonist, for a week. The uteri were collected for histology and RNA sequencing. Our results showed that baicalein attenuated the antiproliferative effect of P4 on luminal epithelium as well as on the PR target genes HAND2 and ZBTB16. Baicalein did not change levels of PR or GR RNA or protein in the uterus. RNA sequencing data indicated that many transcripts significantly altered by baicalein were regulated in the opposite direction by P4. Similarly, a large portion of GO/KEGG terms and GSEA gene sets were altered in the opposite direction by baicalein as compared to P4 treatment. Treatment of baicalein did not change body weight, organ weight, or blood glucose level. In summary, baicalein functioned as a PR antagonist in vivo and therefore may oppose P4 action under certain conditions such as uterine hyperplasia, fibroids, and uterine cancers.
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Affiliation(s)
- Kailiang Li
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Djeneba Diakite
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Julia Austin
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Jeongho Lee
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Daniel D. Lantvit
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Brian T. Murphy
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Joanna E. Burdette
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, 60607, USA
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7
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Austin JR, Li K, Rodríguez RR, Lantvit DD, Murphy BT, Burdette JE. Irilone, a Red Clover Isoflavone, Combined with Progesterone Enhances PR Signaling through the Estrogen and Glucocorticoid Receptors. J Nat Prod 2021; 84:3090-3099. [PMID: 34813298 PMCID: PMC9152987 DOI: 10.1021/acs.jnatprod.1c00835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Trifolium pratense L. (red clover) is a popular botanical supplement used for women's health. Irilone isolated from red clover previously demonstrated progestogenic potentiation activity. In this study, irilone enhanced progesterone signaling was determined to not occur due to post-translational phosphorylation or by reducing progesterone receptor (PR) protein levels but instead increased PR protein levels in T47D breast cancer cells, which could be blocked by estrogen receptor (ER) antagonists, suggesting an ER dependent effect. Further, irilone increased luciferase activity from a hormone responsive element in a cell line that lacked ER and PR but expressed the glucocorticoid receptor (GR). A siRNA knockdown of GR in Ishikawa PR-B endometrial cancer cells reduced irilone's ability to enhance progesterone signaling. In an ovariectomized CD-1 mouse model, irilone did not induce uterine epithelial cell proliferation. The mechanism of action of irilone gives insight into PR crosstalk with other steroid hormone receptors, which can be important for understanding botanicals that are used for women's health.
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Affiliation(s)
- Julia R. Austin
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Kailiang Li
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Rocío Rivera Rodríguez
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Daniel D. Lantvit
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Brian T. Murphy
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Joanna E. Burdette
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, 60607, USA
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8
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Elfeki M, Mantri S, Clark CM, Green SJ, Ziemert N, Murphy BT. Evaluating the Distribution of Bacterial Natural Product Biosynthetic Genes across Lake Huron Sediment. ACS Chem Biol 2021; 16:2623-2631. [PMID: 34605624 DOI: 10.1021/acschembio.1c00653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Environmental microorganisms continue to serve as a major source of bioactive natural products (NPs) and as an inspiration for many other scaffolds in the toolbox of modern medicine. Nearly all microbial NP-inspired therapies can be traced to field expeditions to collect samples from the environment. Despite the importance of these expeditions in the search for new drugs, few studies have attempted to document the extent to which NPs or their corresponding production genes are distributed within a given environment. To gain insights into this, the geographic occurrence of NP ketosynthase (KS) and adenylation (A) domains was documented across 53 and 58 surface sediment samples, respectively, covering 59,590 square kilometers of Lake Huron. Overall, no discernible NP geographic distribution patterns were observed for 90,528 NP classes of nonribosomal peptides and polyketides detected in the survey. While each sampling location harbored a similar number of A domain operational biosynthetic units (OBUs), a limited overlap of OBU type was observed, suggesting that at the sequencing depth used in this study, no single location served as a NP "hotspot". These data support the hypothesis that there is ample variation in NP occurrence between sampling sites and suggest that extensive sample collection efforts are required to fully capture the functional chemical diversity of sediment microbial communities on a regional scale.
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Affiliation(s)
- Maryam Elfeki
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Shrikant Mantri
- German Centre for Infection Research (DZIF), Interfaculty Institute of Microbiology and Infection Medicine Tübingen, University of Tübingen, Auf der Morgenstelle 28, Tübingen 72076, Germany
| | - Chase M. Clark
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Stefan J. Green
- Genomics and Microbiome Core Facility, Rush University Medical Center, Chicago, Illinois 60612, United States
| | - Nadine Ziemert
- German Centre for Infection Research (DZIF), Interfaculty Institute of Microbiology and Infection Medicine Tübingen, University of Tübingen, Auf der Morgenstelle 28, Tübingen 72076, Germany
| | - Brian T. Murphy
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60607, United States
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9
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Abstract
The use of botanical dietary supplements for the alleviation of conditions such as hot flashes, premenstrual syndrome, and fertility is prolific worldwide. Estrogen and progesterone receptors (ER and PR) and their corresponding steroid hormones are critical for the relief of hot flashes and the treatment of patients who develop endometriosis, and these pathways can influence the development of endometrial, ovarian, and breast cancers. However, few studies have investigated or identified the natural product components in herbal supplements that act on the PR. In the current study, a new secoiridoid, demethoxy-cornuside (1), along with six known secoiridoids (2-7) were isolated from the twigs of dogwood (Cornus officinalis) by bioassay-guided isolation with a progesterone response element (PRE)/luciferase (Luc) reporter assay in Ishikawa cells. Four phytoprogestins (1, 2, 6, 7) potentiated the effect of progesterone in the PRE/Luc assay. This study demonstrates that C. officinalis components might potentiate progesterone signaling in the presence of progesterone, which could modify progesterone receptor action in hormone-responsive tissues such as the uterus and mammary gland.
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Affiliation(s)
- Jung-Ho Lee
- Department of Pharmaceutical Sciences: Center for Biomolecular Sciences: College of Pharmacy, 833 S. Wood St., University of Illinois at Chicago, Chicago, IL 60612 United States
| | - Julia R. Austin
- Department of Pharmaceutical Sciences: Center for Biomolecular Sciences: College of Pharmacy, 833 S. Wood St., University of Illinois at Chicago, Chicago, IL 60612 United States
| | - Joanna E. Burdette
- Department of Pharmaceutical Sciences: Center for Biomolecular Sciences: College of Pharmacy, 833 S. Wood St., University of Illinois at Chicago, Chicago, IL 60612 United States
| | - Brian T. Murphy
- Department of Pharmaceutical Sciences: Center for Biomolecular Sciences: College of Pharmacy, 833 S. Wood St., University of Illinois at Chicago, Chicago, IL 60612 United States
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10
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Austin JR, Lee J, Murphy BT, Burdette JE. Mechanism of Action of Irilone as a Potentiator of Progesterone Receptor Signaling. J Endocr Soc 2021. [PMCID: PMC8090276 DOI: 10.1210/jendso/bvab048.1653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Progesterone signaling and its proper regulation is important for reproductive function. When progesterone signaling is dysregulated, gynecological diseases can occur, for example endometriosis, uterine fibroids, and endometrial cancer. While these diseases are treated with progestin therapy, progestins can bind to multiple steroid receptors, exerting side effects of weight gain, immunosuppression, cardiovascular disease, and stroke. Discovering an alternative progestin that is selective for the progesterone receptor (PR) is ideal. One potential source of such an alternative is botanical dietary supplements, which have become increasingly popular among consumers with sales reaching $9.6 billion in 2019. Although botanical supplements are popular, the chemical structures and biological action of botanical supplements would benefit from deeper scientific investigation. Studies of Trifolium pratense L. (red clover), primarily used for the treatment of menopausal symptoms, identified phytoestrogen compounds as the chemicals that mitigate those symptoms. Interestingly, irilone, identified from red clover, potentiated progesterone signaling via a progesterone response element luciferase (PRE/Luc) assay. Potentiation is when a compound has no activity by itself but when combined with another molecule, i.e. progesterone, that compound enhances PR activity. Prior to irilone, a natural compound with the ability to potentiate progesterone signaling had not been previously reported. The purpose of this study was to determine the mechanism of action of irilone. We hypothesized that irilone was potentiating PR by blocking PR degradation and by altering PR post-translational modifications. Irilone was found to potentiate 5 nM P4 using a PRE-luciferase assay in both T47D and Ishikawa PR expressing cells. Since PR is a downstream target gene of ER, we investigated if irilone also had ER activity. Irilone increased expression of an ERE-luciferase reporter gene. Next, we investigated if irilone could stabilize PR degradation and if irilone altered PR phosphorylation via western blot. Irilone was found to increase PR protein levels, but when ER was blocked, this was mitigated. In the presence of P4, irilone did not increase phosphorylation of serine 294 on PR. Future studies will determine if irilone is altering sumoylation of PR, and if irilone can potentiate PR signaling in vivo. Determining how irilone is potentiating progesterone will help us understand PR biology and could be an effective treatment for gynecological diseases by enhancing endogenous progesterone action.
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Affiliation(s)
| | - Jeongho Lee
- University of Illinois-Chicago, Chicago, IL, USA
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11
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Hernandez A, Nguyen LT, Dhakal R, Murphy BT. The need to innovate sample collection and library generation in microbial drug discovery: a focus on academia. Nat Prod Rep 2021; 38:292-300. [PMID: 32706349 PMCID: PMC7855266 DOI: 10.1039/d0np00029a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The question of whether culturable microorganisms will continue to be a viable source of new drug leads is inherently married to the strategies used to collect samples from the environment, the methods used to cultivate microorganisms from these samples, and the processes used to create microbial libraries. An academic microbial natural products (NP) drug discovery program with the latest innovative chromatographic and spectroscopic technology, high-throughput capacity, and bioassays will remain at the mercy of the quality of its microorganism source library. This viewpoint will discuss limitations of sample collection and microbial strain library generation practices. Additionally, it will offer suggestions to innovate these areas, particularly through the targeted cultivation of several understudied bacterial phyla and the untargeted use of mass spectrometry and bioinformatics to generate diverse microbial libraries. Such innovations have potential to impact downstream therapeutic discovery, and make its front end more informed, efficient, and less reliant on serendipity. This viewpoint is not intended to be a comprehensive review of contributing literature and was written with a focus on bacteria. Strategies to discover NPs from microbial libraries, including a variety of genomics and "OSMAC" style approaches, are considered downstream of sample collection and library creation, and thus are out of the scope of this viewpoint.
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Affiliation(s)
- Antonio Hernandez
- Dept. of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA.
| | - Linh T Nguyen
- Dept. of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA. and Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, Nghiado, Caugiay, Hanoi, Vietnam
| | - Radhika Dhakal
- Dept. of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA.
| | - Brian T Murphy
- Dept. of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA.
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12
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Condren AR, Costa MS, Sanchez NR, Konkapaka S, Gallik KL, Saxena A, Murphy BT, Sanchez LM. Addition of insoluble fiber to isolation media allows for increased metabolite diversity of lab-cultivable microbes derived from zebrafish gut samples. Gut Microbes 2020; 11:1064-1076. [PMID: 32202200 PMCID: PMC7524352 DOI: 10.1080/19490976.2020.1740073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
There is a gap in measured microbial diversity when comparing genomic sequencing techniques versus cultivation from environmental samples in a laboratory setting. Standardized methods in artificial environments may not recapitulate the environmental conditions that native microbes require for optimal growth. For example, the intestinal tract houses microbes at various pH values as well as minimal oxygen and light environments. These microbes are also exposed to an atypical source of carbon: dietary fiber compacted in fecal matter. To investigate how the addition of insoluble fiber to isolation media could affect the cultivation of microbes from zebrafish intestines, an isolate library was built and analyzed using the bioinformatics pipeline IDBac. While all isolation media encouraged the growth of species from several phyla, the extent of growth was greater with the addition of fiber allowing for easier isolation. Furthermore, fiber addition altered the metabolism of the cultivated gut-derived microbes and induced the production of unique metabolites that were not produced when microbes were otherwise grown on standard isolation media. Addition of this inexpensive carbon source to the media supported the cultivation of a diverse community whose secondary metabolite production may more closely replicate their metabolite production in vivo.
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Affiliation(s)
- Alanna R. Condren
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Maria S Costa
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, USA,Faculty of Pharmaceutical Sciences, University of Iceland, Reykjavik, Iceland
| | - Natalia Rivera Sanchez
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Sindhu Konkapaka
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Kristin L Gallik
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Ankur Saxena
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Brian T Murphy
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Laura M Sanchez
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, USA,CONTACT Laura M Sanchez Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL60612, USA
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Clark CM, Murphy BT, Sanchez LM. A Call to Action: the Need for Standardization in Developing Open-Source Mass Spectrometry-Based Methods for Microbial Subspecies Discrimination. mSystems 2020; 5:e00813-19. [PMID: 32071161 PMCID: PMC7029221 DOI: 10.1128/msystems.00813-19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Chase M Clark
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Brian T Murphy
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Laura M Sanchez
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, Illinois, USA
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14
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Petrovich ML, Ben Maamar S, Hartmann EM, Murphy BT, Poretsky RS, Wells GF. Viral composition and context in metagenomes from biofilm and suspended growth municipal wastewater treatment plants. Microb Biotechnol 2019; 12:1324-1336. [PMID: 31410982 PMCID: PMC6801142 DOI: 10.1111/1751-7915.13464] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 07/05/2019] [Indexed: 11/30/2022] Open
Abstract
Wastewater treatment plants (WWTPs) contain high density and diversity of viruses which can significantly impact microbial communities in aquatic systems. While previous studies have investigated viruses in WWTP samples that have been specifically concentrated for viruses and filtered to exclude bacteria, little is known about viral communities associated with bacterial communities throughout wastewater treatment systems. Additionally, differences in viral composition between attached and suspended growth wastewater treatment bioprocesses are not well characterized. Here, shotgun metagenomics was used to analyse wastewater and biomass from transects through two full-scale WWTPs for viral composition and associations with bacterial hosts. One WWTP used a suspended growth activated sludge bioreactor and the other used a biofilm reactor (trickling filter). Myoviridae, Podoviridae and Siphoviridae were the dominant viral families throughout both WWTPs, which are all from the order Caudovirales. Beta diversity analysis of viral sequences showed that samples clustered significantly both by plant and by specific sampling location. For each WWTP, the overall bacterial community structure was significantly different than community structure of bacterial taxa associated with viral sequences. These findings highlight viral community composition in transects through different WWTPs and provide context for dsDNA viral sequences in bacterial communities from these systems.
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Affiliation(s)
- Morgan L. Petrovich
- Department of Civil and Environmental EngineeringNorthwestern University2145 Sheridan Rd., Tech A236EvanstonIL60208USA
| | - Sarah Ben Maamar
- Department of Civil and Environmental EngineeringNorthwestern University2145 Sheridan Rd., Tech A236EvanstonIL60208USA
| | - Erica M. Hartmann
- Department of Civil and Environmental EngineeringNorthwestern University2145 Sheridan Rd., Tech A236EvanstonIL60208USA
| | - Brian T. Murphy
- Department of Medicinal Chemistry and PharmacognosyUniversity of Illinois at Chicago900 S. Ashland Ave, MBRB Room 3120; MC 870ChicagoIL60607USA
| | - Rachel S. Poretsky
- Department of Biological SciencesUniversity of Illinois at Chicago950 S. Halsted Street, SEL 4100ChicagoIL60607USA
| | - George F. Wells
- Department of Civil and Environmental EngineeringNorthwestern University2145 Sheridan Rd., Tech A236EvanstonIL60208USA
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15
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Costa MS, Clark CM, Ómarsdóttir S, Sanchez LM, Murphy BT. Minimizing Taxonomic and Natural Product Redundancy in Microbial Libraries Using MALDI-TOF MS and the Bioinformatics Pipeline IDBac. J Nat Prod 2019; 82:2167-2173. [PMID: 31335140 PMCID: PMC7197193 DOI: 10.1021/acs.jnatprod.9b00168] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Libraries of microorganisms have been a cornerstone of drug discovery efforts since the mid-1950s, but strain duplication in some libraries has resulted in unwanted natural product redundancy. In the current study, we implemented a workflow that minimizes both the natural product overlap and the total number of bacterial isolates in a library. Using a collection expedition to Iceland as an example, we purified every distinct bacterial colony off isolation plates derived from 86 environmental samples. We employed our mass spectrometry (MS)-based IDBac workflow on these isolates to form groups of taxa based on protein MS fingerprints (3-15 kDa) and further distinguished taxa subgroups based on their degree of overlap within corresponding natural product spectra (0.2-2 kDa). This informed the decision to create a library of 301 isolates spanning 54 genera. This process required only 25 h of data acquisition and 2 h of analysis. In a separate experiment, we reduced the size of an existing library based on the degree of metabolic overlap observed in natural product MS spectra of bacterial colonies (from 833 to 233 isolates, a 72.0% size reduction). Overall, our pipeline allows for a significant reduction in costs associated with library generation and minimizes natural product redundancy entering into downstream biological screening efforts.
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Affiliation(s)
- Maria S Costa
- Faculty of Pharmaceutical Sciences , University of Iceland , Hagi, Hofsvallagata 53 , IS-107 Reykjavík , Iceland
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Illinois at Chicago , 833 South Wood Street (MC 781), Room 539 , Chicago , Illinois 60607 , United States
| | - Chase M Clark
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Illinois at Chicago , 833 South Wood Street (MC 781), Room 539 , Chicago , Illinois 60607 , United States
| | - Sesselja Ómarsdóttir
- Faculty of Pharmaceutical Sciences , University of Iceland , Hagi, Hofsvallagata 53 , IS-107 Reykjavík , Iceland
| | - Laura M Sanchez
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Illinois at Chicago , 833 South Wood Street (MC 781), Room 539 , Chicago , Illinois 60607 , United States
| | - Brian T Murphy
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Illinois at Chicago , 833 South Wood Street (MC 781), Room 539 , Chicago , Illinois 60607 , United States
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Affiliation(s)
- Tran Van Hieu
- Institue of Marine Biochemistry; Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Truong Bich Ngan
- Institue of Marine Biochemistry; Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Doan Thi Mai Huong
- Institue of Marine Biochemistry; Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
- Graduate University of Science and Technology; VAST, 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Vu Thi Quyen
- Institue of Marine Biochemistry; Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Le Thi Hong Minh
- Institue of Marine Biochemistry; Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Brian T Murphy
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy; University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539; Chicago IL 60612-7231 USA
| | - Pham Van Cuong
- Institue of Marine Biochemistry; Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
- Graduate University of Science and Technology; VAST, 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
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17
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Clark CM, Costa MS, Conley E, Li E, Sanchez LM, Murphy BT. Using the Open-Source MALDI TOF-MS IDBac Pipeline for Analysis of Microbial Protein and Specialized Metabolite Data. J Vis Exp 2019. [PMID: 31157770 DOI: 10.3791/59219] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
In order to visualize the relationship between bacterial phylogeny and specialized metabolite production of bacterial colonies growing on nutrient agar, we developed IDBac-a low-cost and high-throughput matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) bioinformatics pipeline. IDBac software is designed for non-experts, is freely available, and capable of analyzing a few to thousands of bacterial colonies. Here, we present procedures for the preparation of bacterial colonies for MALDI-TOF MS analysis, MS instrument operation, and data processing and visualization in IDBac. In particular, we instruct users how to cluster bacteria into dendrograms based on protein MS fingerprints and interactively create Metabolite Association Networks (MANs) from specialized metabolite data.
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Affiliation(s)
- Chase M Clark
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago
| | - Maria S Costa
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago; Faculty of Pharmaceutical Sciences, University of Iceland
| | - Erin Conley
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago
| | - Emma Li
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago
| | - Laura M Sanchez
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago
| | - Brian T Murphy
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago;
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18
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Abstract
Tuberculosis is an infectious disease of global concern. Members of the diazaquinomycin (DAQ) class of natural products have shown potent and selective activity against drug-resistant Mycobacterium tuberculosis. However, poor solubility has prevented further development of this compound class. Understanding DAQ biosynthesis may provide a viable route for the generation of derivatives with improved properties. We have sequenced the genomes of two actinomycete bacteria that produce distinct DAQ derivatives. While software tools for automated biosynthetic gene cluster (BGC) prediction failed to detect DAQ BGCs, comparative genomics using MAUVE alignment led to the identification of putative BGCs in the marine Streptomyces sp. F001 and in the freshwater Micromonospora sp. B006. Deletion of the identified daq BGC in strain B006 using CRISPR-Cas9 genome editing abolished DAQ production, providing experimental evidence for BGC assignment. A complete model for DAQ biosynthesis is proposed based on the genes identified. Insufficient knowledge of natural product biosynthesis is one of the major challenges of productive genome mining approaches. The results reported here fill a gap in knowledge regarding the genetic basis for the biosynthesis of DAQ antibiotics. Moreover, identification of the daq BGC shall enable future generations of improved derivatives using biosynthetic methods.
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Affiliation(s)
- Jana Braesel
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Jung-Ho Lee
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Benoit Arnould
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Brian T. Murphy
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Alessandra S. Eustáquio
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA
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Petrovich M, Chu B, Wright D, Griffin J, Elfeki M, Murphy BT, Poretsky R, Wells G. Antibiotic resistance genes show enhanced mobilization through suspended growth and biofilm-based wastewater treatment processes. FEMS Microbiol Ecol 2019. [PMID: 29534199 DOI: 10.1093/femsec/fiy041] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Wastewater treatment plants (WWTPs) are known to harbor antibiotic resistance genes (ARGs) that are disseminated into the environment via effluent. However, few studies have compared abundance, mobilization and selective pressures for ARGs in WWTPs as a function of variations in secondary treatment bioprocesses. We used shotgun metagenomics to provide a comprehensive analysis of ARG composition, relationship to mobile genetic elements and co-occurrences with antibiotic production genes (APGs) throughout two full-scale municipal WWTPs, one of which employs biofilm-based secondary treatment and another that uses a suspended growth system. Results showed that abundances of ARGs declined by over 90% per genome equivalent in both types of wastewater treatment processes. However, the fractions of ARGs associated with mobile genetic elements increased substantially between influent and effluent in each plant, indicating significant mobilization of ARGs throughout both treatment processes. Strong positive correlations between ARGs and APGs were found for the aminoglycoside antibiotic class in the suspended growth system and for the streptogramin antibiotic class in the biofilm system. The biofilm and suspended growth WWTPs exhibited similarities in ARG abundances, composition and mobilization trends. However, clear differences were observed for within-plant ARG persistence. These findings suggest that both biofilm and suspended growth-based WWTPs may promote genetic mobilization of persistent ARGs that are then disseminated in effluent to receiving water bodies.
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Affiliation(s)
- Morgan Petrovich
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Binh Chu
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA.,Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA.,Department of Medicinal Chemistry & Pharmacognosy, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Dorothy Wright
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Jim Griffin
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Maryam Elfeki
- Department of Medicinal Chemistry & Pharmacognosy, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Brian T Murphy
- Department of Medicinal Chemistry & Pharmacognosy, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Rachel Poretsky
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - George Wells
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA
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Nepomuceno VM, Kim H, Ding Y, Liu H, Sadek M, Ferreira D, Omarsdottir S, Murphy BT. Deconvolution of E/Z tetrahydroisoquinoline amide rotamers and conformers from a marine-derived Streptomyces strain. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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21
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Braesel J, Crnkovic CM, Kunstman KJ, Green SJ, Maienschein-Cline M, Orjala J, Murphy BT, Eustáquio AS. Complete Genome of Micromonospora sp. Strain B006 Reveals Biosynthetic Potential of a Lake Michigan Actinomycete. J Nat Prod 2018; 81:2057-2068. [PMID: 30110167 PMCID: PMC6174880 DOI: 10.1021/acs.jnatprod.8b00394] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Actinomycete bacteria isolated from freshwater environments are an unexplored source of natural products. Here we report the complete genome of the Great Lakes-derived Micromonospora sp. strain B006, revealing its potential for natural product biosynthesis. The 7-megabase pair chromosome of strain B006 was sequenced using Illumina and Oxford Nanopore technologies followed by Sanger sequencing to close remaining gaps. All identified biosynthetic gene clusters (BGCs) were manually curated. Five known BGCs were identified encoding desferrioxamine, alkyl- O-dihydrogeranylmethoxyhydroquinone, a spore pigment, sioxanthin, and diazepinomicin, which is currently in phase II clinical trials to treat Phelan-McDermid syndrome and co-morbid epilepsy. We report here that strain B006 is indeed a producer of diazepinomicin and at yields higher than previously reported. Moreover, 11 of the 16 identified BGCs are orphan, eight of which were transcriptionally active under the culture condition tested. Orphan BGCs include an enediyne polyketide synthase and an uncharacteristically large, 36-module polyketide synthase-nonribosomal peptide synthetase BGC. We developed a genetics system for Micromonospora sp. B006 that will contribute to deorphaning BGCs in the future. This study is one of the few attempts to report the biosynthetic capacity of a freshwater-derived actinomycete and highlights this resource as a potential reservoir for new natural products.
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Affiliation(s)
- Jana Braesel
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Camila M. Crnkovic
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA
- CAPES Foundation, Ministry of Education of Brazil, Brasília, Federal District 70040-020, Brazil
| | - Kevin J. Kunstman
- DNA Services Facility, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Stefan J. Green
- DNA Services Facility, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Mark Maienschein-Cline
- Core for Research Informatics, University of Illinois at Chicago, Chicago, IL 60615, USA
| | - Jimmy Orjala
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Brian T. Murphy
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Alessandra S. Eustáquio
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA
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22
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Abstract
The use of botanical dietary supplements is becoming increasingly popular for the alleviation of hormonal-based conditions such as hot flashes, premenstrual syndrome, and fertility. Estrogen and progesterone receptors (ER and PR) play an essential role in these processes. However, despite the fact that many therapies used to alleviate gynecological conditions act through PR-mediated mechanisms, few studies have investigated or identified any herbal natural product components that act on this receptor. In the current study, we used a progesterone response element (PRE)-luciferase (Luc) reporter assay to identify four phytoprogestins present in a standardized red clover ( Trifolium pratense) extract. We found that the component irilone (1) potentiated the effect of progesterone in both endometrial and ovarian cancer cell lines. In these cancers, progesterone action is generally associated with positive outcomes; thus the potentiating effect of 1 may provide entirely new strategies for enhancing progesterone signaling as a means of mitigating conditions such as fibroids and endometriosis. Formononetin (3) and biochanin A (4) exhibited mixed agonist activity, while prunetin (2) acted only as an antagonist. Collectively, these results suggest that the effects of red clover extract repeatedly observed in cultured cells and the inverse correlation between risk of various cancers and flavonoid intake may be due, in part, to altered progesterone signaling.
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Affiliation(s)
- Jung-Ho Lee
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy , University of Illinois at Chicago , 833 S. Wood Street , Chicago , Illinois 60612 , United States
| | - Matthew Dean
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy , University of Illinois at Chicago , 833 S. Wood Street , Chicago , Illinois 60612 , United States
| | - Julia R Austin
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy , University of Illinois at Chicago , 833 S. Wood Street , Chicago , Illinois 60612 , United States
| | - Joanna E Burdette
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy , University of Illinois at Chicago , 833 S. Wood Street , Chicago , Illinois 60612 , United States
| | - Brian T Murphy
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy , University of Illinois at Chicago , 833 S. Wood Street , Chicago , Illinois 60612 , United States
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Petrovich M, Chu B, Wright D, Griffin J, Elfeki M, Murphy BT, Poretsky R, Wells G. Antibiotic resistance genes show enhanced mobilization through suspended growth and biofilm-based wastewater treatment processes. FEMS Microbiol Ecol 2018; 94:5098092. [PMID: 30239669 DOI: 10.1093/femsec/fiy174] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Morgan Petrovich
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Binh Chu
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA.,Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA.,Department of Medicinal Chemistry & Pharmacognosy, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Dorothy Wright
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Jim Griffin
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Maryam Elfeki
- Department of Medicinal Chemistry & Pharmacognosy, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Brian T Murphy
- Department of Medicinal Chemistry & Pharmacognosy, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Rachel Poretsky
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - George Wells
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA
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Elfeki M, Alanjary M, Green SJ, Ziemert N, Murphy BT. Assessing the Efficiency of Cultivation Techniques To Recover Natural Product Biosynthetic Gene Populations from Sediment. ACS Chem Biol 2018; 13:2074-2081. [PMID: 29932624 DOI: 10.1021/acschembio.8b00254] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Despite decades of cultivating microorganisms for use in drug discovery, few attempts have been made to measure the extent to which common cultivation techniques have accessed existing chemical space. Metagenomic studies have shown that cultivable bacteria represent a fraction of those that exist in the environment, and that uncultivated populations in sediment have genes that encode for a high diversity of novel natural product (NP) biosynthetic enzymes. Quantifying these genes in both sediment and cultivatable bacterial populations allows us to assess how much diversity is present on nutrient agar and is critical to guiding the trajectory of future NP discovery platforms. Herein, we employed next-generation amplicon sequencing to assess the NP biosynthetic gene populations present in two Lake Huron sediment samples, and compared these with populations from their corresponding cultivatable bacteria. We highlight three findings from our study: (1) after cultivation, we recovered between 7.7% and 23% of three common types of NP biosynthetic genes from the original sediment population; (2) between 76.3% and 91.5% of measured NP biosynthetic genes from nutrient agar have yet to be characterized in known biosynthetic gene cluster databases, indicating that readily cultivatable bacteria harbor the potential to produce new NPs; and (3) even though the predominant taxa present on nutrient media represented some of the major producers of bacterial NPs, the sediment harbored a significantly greater pool of NP biosynthetic genes that could be mined for structural novelty, and these likely belong to taxa that typically have not been represented in microbial drug discovery libraries.
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Affiliation(s)
| | - Mohammad Alanjary
- German Centre for Infection Research (DZIF), Interfaculty Institute of Microbiology and Infection Medicine Tübingen, University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
| | | | - Nadine Ziemert
- German Centre for Infection Research (DZIF), Interfaculty Institute of Microbiology and Infection Medicine Tübingen, University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
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25
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Wang M, Carver JJ, Phelan VV, Sanchez LM, Garg N, Peng Y, Nguyen DD, Watrous J, Kapono CA, Luzzatto-Knaan T, Porto C, Bouslimani A, Melnik AV, Meehan MJ, Liu WT, Crüsemann M, Boudreau PD, Esquenazi E, Sandoval-Calderón M, Kersten RD, Pace LA, Quinn RA, Duncan KR, Hsu CC, Floros DJ, Gavilan RG, Kleigrewe K, Northen T, Dutton RJ, Parrot D, Carlson EE, Aigle B, Michelsen CF, Jelsbak L, Sohlenkamp C, Pevzner P, Edlund A, McLean J, Piel J, Murphy BT, Gerwick L, Liaw CC, Yang YL, Humpf HU, Maansson M, Keyzers RA, Sims AC, Johnson AR, Sidebottom AM, Sedio BE, Klitgaard A, Larson CB, P CAB, Torres-Mendoza D, Gonzalez DJ, Silva DB, Marques LM, Demarque DP, Pociute E, O'Neill EC, Briand E, Helfrich EJN, Granatosky EA, Glukhov E, Ryffel F, Houson H, Mohimani H, Kharbush JJ, Zeng Y, Vorholt JA, Kurita KL, Charusanti P, McPhail KL, Nielsen KF, Vuong L, Elfeki M, Traxler MF, Engene N, Koyama N, Vining OB, Baric R, Silva RR, Mascuch SJ, Tomasi S, Jenkins S, Macherla V, Hoffman T, Agarwal V, Williams PG, Dai J, Neupane R, Gurr J, Rodríguez AMC, Lamsa A, Zhang C, Dorrestein K, Duggan BM, Almaliti J, Allard PM, Phapale P, Nothias LF, Alexandrov T, Litaudon M, Wolfender JL, Kyle JE, Metz TO, Peryea T, Nguyen DT, VanLeer D, Shinn P, Jadhav A, Müller R, Waters KM, Shi W, Liu X, Zhang L, Knight R, Jensen PR, Palsson BO, Pogliano K, Linington RG, Gutiérrez M, Lopes NP, Gerwick WH, Moore BS, Dorrestein PC, Bandeira N. Sharing and community curation of mass spectrometry data with Global Natural Products Social Molecular Networking. Nat Biotechnol 2017; 34:828-837. [PMID: 27504778 DOI: 10.1038/nbt.3597] [Citation(s) in RCA: 2239] [Impact Index Per Article: 319.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 05/10/2016] [Indexed: 12/14/2022]
Abstract
The potential of the diverse chemistries present in natural products (NP) for biotechnology and medicine remains untapped because NP databases are not searchable with raw data and the NP community has no way to share data other than in published papers. Although mass spectrometry (MS) techniques are well-suited to high-throughput characterization of NP, there is a pressing need for an infrastructure to enable sharing and curation of data. We present Global Natural Products Social Molecular Networking (GNPS; http://gnps.ucsd.edu), an open-access knowledge base for community-wide organization and sharing of raw, processed or identified tandem mass (MS/MS) spectrometry data. In GNPS, crowdsourced curation of freely available community-wide reference MS libraries will underpin improved annotations. Data-driven social-networking should facilitate identification of spectra and foster collaborations. We also introduce the concept of 'living data' through continuous reanalysis of deposited data.
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Affiliation(s)
- Mingxun Wang
- Computer Science and Engineering, UC San Diego, La Jolla, United States.,Center for Computational Mass Spectrometry, UC San Diego, La Jolla, United States
| | - Jeremy J Carver
- Computer Science and Engineering, UC San Diego, La Jolla, United States.,Center for Computational Mass Spectrometry, UC San Diego, La Jolla, United States
| | - Vanessa V Phelan
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Laura M Sanchez
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Neha Garg
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Yao Peng
- Department of Chemistry and Biochemistry, UC San Diego, La Jolla, United States
| | - Don Duy Nguyen
- Department of Chemistry and Biochemistry, UC San Diego, La Jolla, United States
| | - Jeramie Watrous
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Clifford A Kapono
- Department of Chemistry and Biochemistry, UC San Diego, La Jolla, United States
| | - Tal Luzzatto-Knaan
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Carla Porto
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Amina Bouslimani
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Alexey V Melnik
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Michael J Meehan
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Wei-Ting Liu
- Department of Microbiology and Immunology, Stanford University, Palo Alto, United States
| | - Max Crüsemann
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Paul D Boudreau
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | | | | | | | - Laura A Pace
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Robert A Quinn
- Biology Department, San Diego State University, San Diego, United States
| | - Katherine R Duncan
- Scottish Association for Marine Science, Scottish Marine Institute, Oban, United Kingdom.,Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Cheng-Chih Hsu
- Department of Chemistry and Biochemistry, UC San Diego, La Jolla, United States
| | - Dimitrios J Floros
- Department of Chemistry and Biochemistry, UC San Diego, La Jolla, United States
| | - Ronnie G Gavilan
- Center for Drug Discovery and Biodiversity, INDICASAT, City of Knowledge, Panama
| | - Karin Kleigrewe
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Trent Northen
- Genome Dynamics, Lawrence Berkeley National Laboratory, Berkeley, United States
| | - Rachel J Dutton
- FAS Center for Systems Biology, Harvard, Cambridge, United States
| | - Delphine Parrot
- Produits naturels - Synthèses - Chimie Médicinale, University of Rennes 1, Rennes Cedex, France
| | - Erin E Carlson
- Chemistry, University of Minnesota, Minneapolis, United States
| | - Bertrand Aigle
- Dynamique des Génomes et Adaptation Microbienne, University of Lorraine, Vandœuvre-lès-Nancy, France
| | | | - Lars Jelsbak
- Department of Systems Biology, Technical University of Denmark, Lyngby, Denmark
| | - Christian Sohlenkamp
- Centro de Ciencias Genómicas, Universidad Nacional Autonoma de Mexico, Cuernavaca, Mexico
| | - Pavel Pevzner
- Center for Computational Mass Spectrometry, UC San Diego, La Jolla, United States.,Computer Science and Engineering, UC San Diego, La Jolla, United States
| | - Anna Edlund
- Microbial and Environmental Genomics, J. Craig Venter Institute, La Jolla, United States.,School of Dentistry, UC Los Angeles, Los Angeles, United States
| | - Jeffrey McLean
- Department of Periodontics, University of Washington, Seattle, United States.,School of Dentistry, UC Los Angeles, Los Angeles, United States
| | - Jörn Piel
- Institute of Microbiology, ETH Zurich, Zurich, Switzerland
| | - Brian T Murphy
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois Chicago, Chicago, United States
| | - Lena Gerwick
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Chih-Chuang Liaw
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Yu-Liang Yang
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
| | - Hans-Ulrich Humpf
- Institute of Food Chemistry, University of Münster, Münster, Germany
| | - Maria Maansson
- Department of Systems Biology, Technical University of Denmark, Lyngby, Denmark
| | - Robert A Keyzers
- School of Chemical & Physical Sciences, and Centre for Biodiscovery, Victoria University of Wellington, Wellington, New Zealand
| | - Amy C Sims
- Gillings School of Global Public Health, Department of Epidemiology, UNC Chapel Hill, Chapel Hill, United States
| | - Andrew R Johnson
- Department of Chemistry, Indiana University, Bloomington, United States
| | | | - Brian E Sedio
- Smithsonian Tropical Research Institute, Ancón, Panama.,Center for Drug Discovery and Biodiversity, INDICASAT, City of Knowledge, Panama
| | - Andreas Klitgaard
- Department of Systems Biology, Technical University of Denmark, Lyngby, Denmark
| | - Charles B Larson
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States.,Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Cristopher A Boya P
- Center for Drug Discovery and Biodiversity, INDICASAT, City of Knowledge, Panama
| | | | - David J Gonzalez
- Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States.,Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Denise B Silva
- School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, São Paulo, Brazil.,Centro de Ciencias Biologicas e da Saude, Universidade Fderal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Lucas M Marques
- School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, São Paulo, Brazil
| | - Daniel P Demarque
- School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, São Paulo, Brazil
| | - Egle Pociute
- Sirenas Marine Discovery, San Diego, United States
| | - Ellis C O'Neill
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Enora Briand
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States.,UMR CNRS 6553 ECOBIO, University of Rennes 1, Rennes Cedex, France
| | | | - Eve A Granatosky
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, United States
| | - Evgenia Glukhov
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Florian Ryffel
- Institute of Microbiology, ETH Zurich, Zurich, Switzerland
| | | | - Hosein Mohimani
- Center for Computational Mass Spectrometry, UC San Diego, La Jolla, United States
| | - Jenan J Kharbush
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Yi Zeng
- Department of Chemistry and Biochemistry, UC San Diego, La Jolla, United States
| | | | - Kenji L Kurita
- PBSci-Chemistry & Biochemistry Department, UC Santa Cruz, Santa Cruz, United States
| | - Pep Charusanti
- Department of Bioengineering, UC San Diego, La Jolla, United States
| | - Kerry L McPhail
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, United States
| | | | - Lisa Vuong
- Sirenas Marine Discovery, San Diego, United States
| | - Maryam Elfeki
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois Chicago, Chicago, United States
| | - Matthew F Traxler
- Department of Plant and Microbial Biology, UC Berkeley, Berkeley, United States
| | - Niclas Engene
- Department of Biological Sciences, Florida International University, Miami, United States
| | - Nobuhiro Koyama
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Oliver B Vining
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, United States
| | - Ralph Baric
- Gillings School of Global Public Health, Department of Epidemiology, UNC Chapel Hill, Chapel Hill, United States
| | - Ricardo R Silva
- School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, São Paulo, Brazil
| | - Samantha J Mascuch
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Sophie Tomasi
- Produits naturels - Synthèses - Chimie Médicinale, University of Rennes 1, Rennes Cedex, France
| | - Stefan Jenkins
- Genome Dynamics, Lawrence Berkeley National Laboratory, Berkeley, United States
| | | | - Thomas Hoffman
- Department of Pharmaceutical Biotechnology, Helmholtz Institute for Pharmaceutical Research Saarland, Saarbrücken, Germany
| | - Vinayak Agarwal
- Center for Oceans and Human Health, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Philip G Williams
- Department of Chemistry, University of Hawaii at Manoa, Honolulu, United States
| | - Jingqui Dai
- Department of Chemistry, University of Hawaii at Manoa, Honolulu, United States
| | - Ram Neupane
- Department of Chemistry, University of Hawaii at Manoa, Honolulu, United States
| | - Joshua Gurr
- Department of Chemistry, University of Hawaii at Manoa, Honolulu, United States
| | - Andrés M C Rodríguez
- School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, São Paulo, Brazil
| | - Anne Lamsa
- Division of Biological Sciences, UC San Diego, La Jolla, United States
| | - Chen Zhang
- Department of Nanoengineering, UC San Diego, La Jolla, United States
| | - Kathleen Dorrestein
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Brendan M Duggan
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Jehad Almaliti
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Pierre-Marie Allard
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
| | - Prasad Phapale
- Structural and Computational Biology, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Louis-Felix Nothias
- Institut de Chimie des Substances Naturelles, CNRS-ICSN, UPR 2301, Labex CEBA, University of Paris-Saclay, Gif-sur-Yvette, France
| | - Theodore Alexandrov
- Structural and Computational Biology, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Marc Litaudon
- Institut de Chimie des Substances Naturelles, CNRS-ICSN, UPR 2301, Labex CEBA, University of Paris-Saclay, Gif-sur-Yvette, France
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
| | - Jennifer E Kyle
- Biological Sciences, Pacific Northwest National Laboratory, Richland, United States
| | - Thomas O Metz
- Biological Sciences, Pacific Northwest National Laboratory, Richland, United States
| | - Tyler Peryea
- National Center for Advancing Translational Sciences, National Institute of Health, Rockville, United States
| | - Dac-Trung Nguyen
- National Center for Advancing Translational Sciences, National Institute of Health, Rockville, United States
| | - Danielle VanLeer
- National Center for Advancing Translational Sciences, National Institute of Health, Rockville, United States
| | - Paul Shinn
- National Center for Advancing Translational Sciences, National Institute of Health, Rockville, United States
| | - Ajit Jadhav
- National Center for Advancing Translational Sciences, National Institute of Health, Rockville, United States
| | - Rolf Müller
- Department of Pharmaceutical Biotechnology, Helmholtz Institute for Pharmaceutical Research Saarland, Saarbrücken, Germany
| | - Katrina M Waters
- Biological Sciences, Pacific Northwest National Laboratory, Richland, United States
| | - Wenyuan Shi
- School of Dentistry, UC Los Angeles, Los Angeles, United States
| | - Xueting Liu
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Lixin Zhang
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Rob Knight
- Department of Pediatrics, UC San Diego, La Jolla, United States
| | - Paul R Jensen
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | | | - Kit Pogliano
- Division of Biological Sciences, UC San Diego, La Jolla, United States
| | - Roger G Linington
- PBSci-Chemistry & Biochemistry Department, UC Santa Cruz, Santa Cruz, United States
| | - Marcelino Gutiérrez
- Center for Drug Discovery and Biodiversity, INDICASAT, City of Knowledge, Panama
| | - Norberto P Lopes
- School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, São Paulo, Brazil
| | - William H Gerwick
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States.,Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Bradley S Moore
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States.,Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States.,Center for Oceans and Human Health, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Pieter C Dorrestein
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States.,Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States.,Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Nuno Bandeira
- Center for Computational Mass Spectrometry, UC San Diego, La Jolla, United States.,Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States.,Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
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26
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Dean M, Murphy BT, Burdette JE. Phytosteroids beyond estrogens: Regulators of reproductive and endocrine function in natural products. Mol Cell Endocrinol 2017; 442:98-105. [PMID: 27986590 PMCID: PMC5276729 DOI: 10.1016/j.mce.2016.12.013] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 11/29/2016] [Accepted: 12/12/2016] [Indexed: 12/18/2022]
Abstract
Foods and botanical supplements can interfere with the endocrine system through the presence of phytosteroids - chemicals that interact with steroids receptors. Phytoestrogens are well studied, but compounds such as kaempferol, apigenin, genistein, ginsenoside Rf, and glycyrrhetinic acid have been shown to interact with non-estrogen nuclear receptors. These compounds can have agonist, antagonist, or mixed agonist/antagonist activity depending on compound, receptor, cell line or tissue, and concentration. Some phytosteroids have also been shown to inhibit steroid metabolizing enzymes, resulting in biological effects through altered endogenous steroid concentrations. An interesting example, compound A (4-[1-chloro-2-(methylamino)ethyl]phenyl acetate hydrochloride (1:1)) is a promising selective glucocorticoid receptor modulator (SGRM) based on a phytosteroid isolated from Salsola tuberculatiformis Botschantzev. Given that $6.9 billion of herbal supplements are sold each year, is clear that further identification and characterization of phytosteroids is needed to ensure the safe and effective use of botanical supplements.
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Affiliation(s)
- Matthew Dean
- Department of Medicinal Chemistry and Pharmacognosy, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - Brian T Murphy
- Department of Medicinal Chemistry and Pharmacognosy, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - Joanna E Burdette
- Department of Medicinal Chemistry and Pharmacognosy, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA.
| |
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27
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Wang M, Carver JJ, Phelan VV, Sanchez LM, Garg N, Peng Y, Nguyen DD, Watrous J, Kapono CA, Luzzatto-Knaan T, Porto C, Bouslimani A, Melnik AV, Meehan MJ, Liu WT, Crüsemann M, Boudreau PD, Esquenazi E, Sandoval-Calderón M, Kersten RD, Pace LA, Quinn RA, Duncan KR, Hsu CC, Floros DJ, Gavilan RG, Kleigrewe K, Northen T, Dutton RJ, Parrot D, Carlson EE, Aigle B, Michelsen CF, Jelsbak L, Sohlenkamp C, Pevzner P, Edlund A, McLean J, Piel J, Murphy BT, Gerwick L, Liaw CC, Yang YL, Humpf HU, Maansson M, Keyzers RA, Sims AC, Johnson AR, Sidebottom AM, Sedio BE, Klitgaard A, Larson CB, P CAB, Torres-Mendoza D, Gonzalez DJ, Silva DB, Marques LM, Demarque DP, Pociute E, O'Neill EC, Briand E, Helfrich EJN, Granatosky EA, Glukhov E, Ryffel F, Houson H, Mohimani H, Kharbush JJ, Zeng Y, Vorholt JA, Kurita KL, Charusanti P, McPhail KL, Nielsen KF, Vuong L, Elfeki M, Traxler MF, Engene N, Koyama N, Vining OB, Baric R, Silva RR, Mascuch SJ, Tomasi S, Jenkins S, Macherla V, Hoffman T, Agarwal V, Williams PG, Dai J, Neupane R, Gurr J, Rodríguez AMC, Lamsa A, Zhang C, Dorrestein K, Duggan BM, Almaliti J, Allard PM, Phapale P, Nothias LF, Alexandrov T, Litaudon M, Wolfender JL, Kyle JE, Metz TO, Peryea T, Nguyen DT, VanLeer D, Shinn P, Jadhav A, Müller R, Waters KM, Shi W, Liu X, Zhang L, Knight R, Jensen PR, Palsson BO, Pogliano K, Linington RG, Gutiérrez M, Lopes NP, Gerwick WH, Moore BS, Dorrestein PC, Bandeira N. Sharing and community curation of mass spectrometry data with Global Natural Products Social Molecular Networking. Nat Biotechnol 2016. [PMID: 27504778 DOI: 10.1038/nbt.3597.sharing] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
The potential of the diverse chemistries present in natural products (NP) for biotechnology and medicine remains untapped because NP databases are not searchable with raw data and the NP community has no way to share data other than in published papers. Although mass spectrometry (MS) techniques are well-suited to high-throughput characterization of NP, there is a pressing need for an infrastructure to enable sharing and curation of data. We present Global Natural Products Social Molecular Networking (GNPS; http://gnps.ucsd.edu), an open-access knowledge base for community-wide organization and sharing of raw, processed or identified tandem mass (MS/MS) spectrometry data. In GNPS, crowdsourced curation of freely available community-wide reference MS libraries will underpin improved annotations. Data-driven social-networking should facilitate identification of spectra and foster collaborations. We also introduce the concept of 'living data' through continuous reanalysis of deposited data.
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Affiliation(s)
- Mingxun Wang
- Computer Science and Engineering, UC San Diego, La Jolla, United States.,Center for Computational Mass Spectrometry, UC San Diego, La Jolla, United States
| | - Jeremy J Carver
- Computer Science and Engineering, UC San Diego, La Jolla, United States.,Center for Computational Mass Spectrometry, UC San Diego, La Jolla, United States
| | - Vanessa V Phelan
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Laura M Sanchez
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Neha Garg
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Yao Peng
- Department of Chemistry and Biochemistry, UC San Diego, La Jolla, United States
| | - Don Duy Nguyen
- Department of Chemistry and Biochemistry, UC San Diego, La Jolla, United States
| | - Jeramie Watrous
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Clifford A Kapono
- Department of Chemistry and Biochemistry, UC San Diego, La Jolla, United States
| | - Tal Luzzatto-Knaan
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Carla Porto
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Amina Bouslimani
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Alexey V Melnik
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Michael J Meehan
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Wei-Ting Liu
- Department of Microbiology and Immunology, Stanford University, Palo Alto, United States
| | - Max Crüsemann
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Paul D Boudreau
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | | | | | | | - Laura A Pace
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Robert A Quinn
- Biology Department, San Diego State University, San Diego, United States
| | - Katherine R Duncan
- Scottish Association for Marine Science, Scottish Marine Institute, Oban, United Kingdom.,Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Cheng-Chih Hsu
- Department of Chemistry and Biochemistry, UC San Diego, La Jolla, United States
| | - Dimitrios J Floros
- Department of Chemistry and Biochemistry, UC San Diego, La Jolla, United States
| | - Ronnie G Gavilan
- Center for Drug Discovery and Biodiversity, INDICASAT, City of Knowledge, Panama
| | - Karin Kleigrewe
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Trent Northen
- Genome Dynamics, Lawrence Berkeley National Laboratory, Berkeley, United States
| | - Rachel J Dutton
- FAS Center for Systems Biology, Harvard, Cambridge, United States
| | - Delphine Parrot
- Produits naturels - Synthèses - Chimie Médicinale, University of Rennes 1, Rennes Cedex, France
| | - Erin E Carlson
- Chemistry, University of Minnesota, Minneapolis, United States
| | - Bertrand Aigle
- Dynamique des Génomes et Adaptation Microbienne, University of Lorraine, Vandœuvre-lès-Nancy, France
| | | | - Lars Jelsbak
- Department of Systems Biology, Technical University of Denmark, Lyngby, Denmark
| | - Christian Sohlenkamp
- Centro de Ciencias Genómicas, Universidad Nacional Autonoma de Mexico, Cuernavaca, Mexico
| | - Pavel Pevzner
- Center for Computational Mass Spectrometry, UC San Diego, La Jolla, United States.,Computer Science and Engineering, UC San Diego, La Jolla, United States
| | - Anna Edlund
- Microbial and Environmental Genomics, J. Craig Venter Institute, La Jolla, United States.,School of Dentistry, UC Los Angeles, Los Angeles, United States
| | - Jeffrey McLean
- Department of Periodontics, University of Washington, Seattle, United States.,School of Dentistry, UC Los Angeles, Los Angeles, United States
| | - Jörn Piel
- Institute of Microbiology, ETH Zurich, Zurich, Switzerland
| | - Brian T Murphy
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois Chicago, Chicago, United States
| | - Lena Gerwick
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Chih-Chuang Liaw
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Yu-Liang Yang
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
| | - Hans-Ulrich Humpf
- Institute of Food Chemistry, University of Münster, Münster, Germany
| | - Maria Maansson
- Department of Systems Biology, Technical University of Denmark, Lyngby, Denmark
| | - Robert A Keyzers
- School of Chemical & Physical Sciences, and Centre for Biodiscovery, Victoria University of Wellington, Wellington, New Zealand
| | - Amy C Sims
- Gillings School of Global Public Health, Department of Epidemiology, UNC Chapel Hill, Chapel Hill, United States
| | - Andrew R Johnson
- Department of Chemistry, Indiana University, Bloomington, United States
| | | | - Brian E Sedio
- Smithsonian Tropical Research Institute, Ancón, Panama.,Center for Drug Discovery and Biodiversity, INDICASAT, City of Knowledge, Panama
| | - Andreas Klitgaard
- Department of Systems Biology, Technical University of Denmark, Lyngby, Denmark
| | - Charles B Larson
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States.,Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Cristopher A Boya P
- Center for Drug Discovery and Biodiversity, INDICASAT, City of Knowledge, Panama
| | | | - David J Gonzalez
- Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States.,Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Denise B Silva
- School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, São Paulo, Brazil.,Centro de Ciencias Biologicas e da Saude, Universidade Fderal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Lucas M Marques
- School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, São Paulo, Brazil
| | - Daniel P Demarque
- School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, São Paulo, Brazil
| | - Egle Pociute
- Sirenas Marine Discovery, San Diego, United States
| | - Ellis C O'Neill
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Enora Briand
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States.,UMR CNRS 6553 ECOBIO, University of Rennes 1, Rennes Cedex, France
| | | | - Eve A Granatosky
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, United States
| | - Evgenia Glukhov
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Florian Ryffel
- Institute of Microbiology, ETH Zurich, Zurich, Switzerland
| | | | - Hosein Mohimani
- Center for Computational Mass Spectrometry, UC San Diego, La Jolla, United States
| | - Jenan J Kharbush
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Yi Zeng
- Department of Chemistry and Biochemistry, UC San Diego, La Jolla, United States
| | | | - Kenji L Kurita
- PBSci-Chemistry & Biochemistry Department, UC Santa Cruz, Santa Cruz, United States
| | - Pep Charusanti
- Department of Bioengineering, UC San Diego, La Jolla, United States
| | - Kerry L McPhail
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, United States
| | | | - Lisa Vuong
- Sirenas Marine Discovery, San Diego, United States
| | - Maryam Elfeki
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois Chicago, Chicago, United States
| | - Matthew F Traxler
- Department of Plant and Microbial Biology, UC Berkeley, Berkeley, United States
| | - Niclas Engene
- Department of Biological Sciences, Florida International University, Miami, United States
| | - Nobuhiro Koyama
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Oliver B Vining
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, United States
| | - Ralph Baric
- Gillings School of Global Public Health, Department of Epidemiology, UNC Chapel Hill, Chapel Hill, United States
| | - Ricardo R Silva
- School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, São Paulo, Brazil
| | - Samantha J Mascuch
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Sophie Tomasi
- Produits naturels - Synthèses - Chimie Médicinale, University of Rennes 1, Rennes Cedex, France
| | - Stefan Jenkins
- Genome Dynamics, Lawrence Berkeley National Laboratory, Berkeley, United States
| | | | - Thomas Hoffman
- Department of Pharmaceutical Biotechnology, Helmholtz Institute for Pharmaceutical Research Saarland, Saarbrücken, Germany
| | - Vinayak Agarwal
- Center for Oceans and Human Health, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Philip G Williams
- Department of Chemistry, University of Hawaii at Manoa, Honolulu, United States
| | - Jingqui Dai
- Department of Chemistry, University of Hawaii at Manoa, Honolulu, United States
| | - Ram Neupane
- Department of Chemistry, University of Hawaii at Manoa, Honolulu, United States
| | - Joshua Gurr
- Department of Chemistry, University of Hawaii at Manoa, Honolulu, United States
| | - Andrés M C Rodríguez
- School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, São Paulo, Brazil
| | - Anne Lamsa
- Division of Biological Sciences, UC San Diego, La Jolla, United States
| | - Chen Zhang
- Department of Nanoengineering, UC San Diego, La Jolla, United States
| | - Kathleen Dorrestein
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Brendan M Duggan
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Jehad Almaliti
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Pierre-Marie Allard
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
| | - Prasad Phapale
- Structural and Computational Biology, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Louis-Felix Nothias
- Institut de Chimie des Substances Naturelles, CNRS-ICSN, UPR 2301, Labex CEBA, University of Paris-Saclay, Gif-sur-Yvette, France
| | - Theodore Alexandrov
- Structural and Computational Biology, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Marc Litaudon
- Institut de Chimie des Substances Naturelles, CNRS-ICSN, UPR 2301, Labex CEBA, University of Paris-Saclay, Gif-sur-Yvette, France
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
| | - Jennifer E Kyle
- Biological Sciences, Pacific Northwest National Laboratory, Richland, United States
| | - Thomas O Metz
- Biological Sciences, Pacific Northwest National Laboratory, Richland, United States
| | - Tyler Peryea
- National Center for Advancing Translational Sciences, National Institute of Health, Rockville, United States
| | - Dac-Trung Nguyen
- National Center for Advancing Translational Sciences, National Institute of Health, Rockville, United States
| | - Danielle VanLeer
- National Center for Advancing Translational Sciences, National Institute of Health, Rockville, United States
| | - Paul Shinn
- National Center for Advancing Translational Sciences, National Institute of Health, Rockville, United States
| | - Ajit Jadhav
- National Center for Advancing Translational Sciences, National Institute of Health, Rockville, United States
| | - Rolf Müller
- Department of Pharmaceutical Biotechnology, Helmholtz Institute for Pharmaceutical Research Saarland, Saarbrücken, Germany
| | - Katrina M Waters
- Biological Sciences, Pacific Northwest National Laboratory, Richland, United States
| | - Wenyuan Shi
- School of Dentistry, UC Los Angeles, Los Angeles, United States
| | - Xueting Liu
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Lixin Zhang
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Rob Knight
- Department of Pediatrics, UC San Diego, La Jolla, United States
| | - Paul R Jensen
- Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | | | - Kit Pogliano
- Division of Biological Sciences, UC San Diego, La Jolla, United States
| | - Roger G Linington
- PBSci-Chemistry & Biochemistry Department, UC Santa Cruz, Santa Cruz, United States
| | - Marcelino Gutiérrez
- Center for Drug Discovery and Biodiversity, INDICASAT, City of Knowledge, Panama
| | - Norberto P Lopes
- School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, São Paulo, Brazil
| | - William H Gerwick
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States.,Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Bradley S Moore
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States.,Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States.,Center for Oceans and Human Health, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States
| | - Pieter C Dorrestein
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States.,Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, UC San Diego, La Jolla, United States.,Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
| | - Nuno Bandeira
- Center for Computational Mass Spectrometry, UC San Diego, La Jolla, United States.,Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States.,Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, United States
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Murphy BT, O'Reilly SS, Monteys X, Reid BF, Szpak MT, McCaul MV, Jordan SF, Allen CCR, Kelleher BP. The occurrence of PAHs and faecal sterols in Dublin Bay and their influence on sedimentary microbial communities. Mar Pollut Bull 2016; 106:215-224. [PMID: 26961173 DOI: 10.1016/j.marpolbul.2016.02.066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 02/24/2016] [Accepted: 02/26/2016] [Indexed: 06/05/2023]
Abstract
The source, concentration, and potential impact of sewage discharge and incomplete organic matter (OM) combustion on sedimentary microbial populations were assessed in Dublin Bay, Ireland. Polycyclic aromatic hydrocarbons (PAHs) and faecal steroids were investigated in 30 surface sediment stations in the bay. Phospholipid fatty acid (PLFA) content at each station was used to identify and quantify the broad microbial groups present and the impact of particle size, total organic carbon (%TOC), total hydrogen (%H) and total nitrogen (%N) was also considered. Faecal sterols were found to be highest in areas with historical point sources of sewage discharge. PAH distribution was more strongly associated with areas of deposition containing high %silt and %clay content, suggesting that PAHs are from diffuse sources such as rainwater run-off and atmospheric deposition. The PAHs ranged from 12 to 3072ng/g, with 10 stations exceeding the suggested effect range low (ERL) for PAHs in marine sediments. PAH isomer pair ratios and sterol ratios were used to determine the source and extent of pollution. PLFAs were not impacted by sediment type or water depth but were strongly correlated to, and influenced by PAH and sewage levels. Certain biomarkers such as 10Me16:0, i17:0 and a17:0 were closely associated with PAH polluted sediments, while 16:1ω9, 16:1ω7c, Cy17:0, 18:1ω6, i16:0 and 15:0 all have strong positive correlations with faecal sterols. Overall, the results show that sedimentary microbial communities are impacted by anthropogenic pollution.
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Affiliation(s)
- Brian T Murphy
- School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Shane S O'Reilly
- School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Xavier Monteys
- Geological Survey of Ireland, Beggars Bush, Haddington Rd, Dublin 4, Ireland
| | - Barry F Reid
- School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Michal T Szpak
- School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Margaret V McCaul
- School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Sean F Jordan
- School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Christopher C R Allen
- School of Biological Sciences, Queens University Belfast, Medical Biology Centre, Lisburn Rd, Belfast, N. Ireland, United Kingdom
| | - Brian P Kelleher
- School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland.
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29
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Thi QV, Tran VH, Mai HDT, Le CV, Hong MLT, Murphy BT, Chau VM, Pham VC. Secondary Metabolites from an Actinomycete from Vietnam's East Sea. Nat Prod Commun 2016; 11:401-404. [PMID: 27169191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
Analysis of an antimicrobial extract prepared from culture broth of the marine-derived actinomycete Nocardiopsis sp. (strain G057) led to the isolation of twelve compounds, 1-12. Compound 1 (2-[(2R-hydroxypropanoyl)amino]benzamide) was found to be a new enantiomeric isomer while compounds 2 (3-acetyl-4-hydroxycinnoline) and 3 (3,3'-bis-indole) were isolated from a natural source for the first time. The structures of 1-12 were determined by analyses of MS and 2D NMR data. All compounds were evaluated for their antimicrobial activity against a panel of clinically significant microorganisms. Compound 1 selectively inhibited Escherichia coli (MIC: 16 µg/mL). Compounds 2 and 3 exhibited antimicrobial activity against several strains of both Gram-positive and Gram-negative bacteria, and the yeast Candida albicans. Cytotoxic evaluation of compounds 1-3 against four cancer cell lines (KB, LU-1, HepG-2 and MCF-7) indicated that compound 3 produced a weak inhibition against KB and LU cell lines. Two remaining compounds, 1 and 2 were not cytotoxic, even at the concentration of 128 µg/mL.
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30
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Abstract
Analysis of an antimicrobial extract prepared from culture broth of the marine-derived actinomycete Nocardiopsis sp. (strain G057) led to the isolation of twelve compounds, 1–12. Compound 1 (2-[(2 R-hydroxypropanoyl)amino]benzamide) was found to be a new enantiomeric isomer while compounds 2 (3-acetyl-4-hydroxycinnoline) and 3 (3,3′-bis-indole) were isolated from a natural source for the first time. The structures of 1 – 12 were determined by analyses of MS and 2D NMR data. All compounds were evaluated for their antimicrobial activity against a panel of clinically significant microorganisms. Compound 1 selectively inhibited Escherichia coli (MIC: 16 μg/mL). Compounds 2 and 3 exhibited antimicrobial activity against several strains of both Gram-positive and Gram-negative bacteria, and the yeast Candida albicans. Cytotoxic evaluation of compounds 1 – 3 against four cancer cell lines (KB, LU-1, HepG-2 and MCF-7) indicated that compound 3 produced a weak inhibition against KB and LU cell lines. Two remaining compounds, 1 and 2 were not cytotoxic, even at the concentration of 128 μg/mL.
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Affiliation(s)
- Quyen Vu Thi
- Institute of Marine Biochemistry, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Van Hieu Tran
- Institute of Marine Biochemistry, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Huong Doan Thi Mai
- Institute of Marine Biochemistry, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Cong Vinh Le
- Institute of Marine Biochemistry, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Minh Le Thi Hong
- Institute of Marine Biochemistry, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Brian T. Murphy
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
| | - Van Minh Chau
- Institute of Marine Biochemistry, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Van Cuong Pham
- Institute of Marine Biochemistry, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
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31
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Thi QV, Tran VH, Mai HDT, Le CV, Hong MLT, Murphy BT, Chau VM, Pham VC. Antimicrobial Metabolites from a Marine-Derived Actinomycete in Vietnam's East Sea. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Two new compounds, a quinoline alkaloid (1) and a 1,4-dioxane derivative (2), were isolated from culture broth of the marine-derived actinomycete Micromonospora sp. (strain G019) by bioassay-guided fractionation. This actinomycete strain was isolated from sediment, collected at Cát Bà Peninsula, Vietnam. The taxonomic identification was achieved by analysis of 16S rRNA gene sequences. On the basis of morphological and phylogenetic evidence, strain G019 was assigned to the genus Micromonospora. The structures of 1 and 2 were established by spectroscopic data analysis, including one- and two-dimensional NMR, and MS. Compound 1 was found to have antibacterial activity against Escherichia coli (MIC: 48 μg/mL), Salmonella enterica (MIC: 96 μg/mL) and Enterococcus faecalis (MIC: 128 μg/mL), while compound 2 showed inhibitory activity against Enterococcus faecalis (MIC: 32 μg/mL) and Candida albicans (MIC: 64 μg/mL).
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Affiliation(s)
- Quyen Vu Thi
- Institute of Marine Biochemistry, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Van Hieu Tran
- Institute of Marine Biochemistry, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Huong Doan Thi Mai
- Institute of Marine Biochemistry, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Cong Vinh Le
- Institute of Marine Biochemistry, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Minh Le Thi Hong
- Institute of Marine Biochemistry, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Brian T. Murphy
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, USA
| | - Van Minh Chau
- Institute of Marine Biochemistry, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Van Cuong Pham
- Institute of Marine Biochemistry, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
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32
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Thi QV, Tran VH, Maia HDT, Le CV, Hong MLT, Murphy BT, Chau VM, Pham VC. Antimicrobial Metabolites from a Marine-Derived Actinomycete in Vietnam's East Sea. Nat Prod Commun 2016; 11:49-51. [PMID: 26996018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
Two new compounds, a quinoline alkaloid (1) and a 1,4-dioxane derivative (2), were isolated from culture broth of the marine-derived actinomycete Micromonospora sp. (strain G019) by bioassay-guided fractionation. This actinomycete strain was isolated from sediment, collected at Cát Bà Peninsula, Vietnam. The taxonomic identification was achieved by analysis of 16S rRNA gene sequences. On the basis of morphological and phylogenetic evidence, strain G019 was assigned to the genus Micromonospora. The structures of 1 and 2 were established by spectroscopic data analysis, including one- and two-dimensional NMR, and MS. Compound 1 was found to have antibacterial activity against Escherichia coli (MIC: 48 µg/mL), Salmonella enterica (MIC: 96 µg/mL) and Enterococcus faecalis (MIC: 128 µg/mL), while compound 2 showed inhibitory activity against Enterococcusfaecalis (MIC: 32 µg/mL) and Candida albicans (MIC: 64 µg/mL).
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33
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Mullowney MW, Hwang CH, Newsome AG, Wei X, Tanouye U, Wan B, Carlson S, Barranis NJ, Ó hAinmhire E, Chen WL, Krishnamoorthy K, White J, Blair R, Lee H, Burdette JE, Rathod PK, Parish T, Cho S, Franzblau SG, Murphy BT. Diaza-anthracene Antibiotics from a Freshwater-Derived Actinomycete with Selective Antibacterial Activity toward Mycobacterium tuberculosis. ACS Infect Dis 2015; 1:168-174. [PMID: 26594660 DOI: 10.1021/acsinfecdis.5b00005] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Multidrug- and extensively drug-resistant strains of Mycobacterium tuberculosis are resistant to first- and second-line drug regimens and resulted in 210,000 fatalities in 2013. In the current study, we screened a library of aquatic bacterial natural product fractions for their ability to inhibit this pathogen. A fraction from a Lake Michigan bacterium exhibited significant inhibitory activity, from which we characterized novel diazaquinomycins H and J. This antibiotic class displayed an in vitro activity profile similar or superior to clinically used anti-tuberculosis agents and maintained this potency against a panel of drug-resistant M. tuberculosis strains. Importantly, these are among the only freshwater-derived actinomycete bacterial metabolites described to date. Further in vitro profiling against a broad panel of bacteria indicated that this antibiotic class selectively targets M. tuberculosis. Additionally, in the case of this pathogen we present evidence counter to previous reports that claim the diazaquinomycins target thymidylate synthase in Gram-positive bacteria. Thus, we establish freshwater environments as potential sources for novel antibiotic leads and present the diazaquinomycins as potent and selective inhibitors of M. tuberculosis.
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Affiliation(s)
- Michael W. Mullowney
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
| | - Chang Hwa Hwang
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 964), Room 412, Chicago, Illinois 60612-7231, United States
| | - Andrew G. Newsome
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
| | - Xiaomei Wei
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
| | - Urszula Tanouye
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
| | - Baojie Wan
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 964), Room 412, Chicago, Illinois 60612-7231, United States
| | - Skylar Carlson
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
| | - Nanthida Joy Barranis
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
- Department of Biopharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 865), Room 335, Chicago, Illinois 60612-7231, United States
| | - Eoghainín Ó hAinmhire
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
- Center for Pharmaceutical Biotechnology,
College of Pharmacy, University of Illinois at Chicago, Molecular Biology Research
Building, 900 South Ashland Avenue (MC 870), Room
3150, Chicago, Illinois 60607-7173, United States
| | - Wei-Lun Chen
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
| | - Kalyanaraman Krishnamoorthy
- Department
of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - John White
- Department
of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Rachel Blair
- TB Discovery Research, Infectious Disease Research Institute, 1616
Eastlake Avenue East, Suite 400, Seattle, Washington 98102, United States
| | - Hyunwoo Lee
- Department of Biopharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 865), Room 335, Chicago, Illinois 60612-7231, United States
| | - Joanna E. Burdette
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
- Center for Pharmaceutical Biotechnology,
College of Pharmacy, University of Illinois at Chicago, Molecular Biology Research
Building, 900 South Ashland Avenue (MC 870), Room
3150, Chicago, Illinois 60607-7173, United States
| | - Pradipsinh K. Rathod
- Department
of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Tanya Parish
- TB Discovery Research, Infectious Disease Research Institute, 1616
Eastlake Avenue East, Suite 400, Seattle, Washington 98102, United States
| | - Sanghyun Cho
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 964), Room 412, Chicago, Illinois 60612-7231, United States
| | - Scott G. Franzblau
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 964), Room 412, Chicago, Illinois 60612-7231, United States
| | - Brian T. Murphy
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
- Center for Pharmaceutical Biotechnology,
College of Pharmacy, University of Illinois at Chicago, Molecular Biology Research
Building, 900 South Ashland Avenue (MC 870), Room
3150, Chicago, Illinois 60607-7173, United States
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34
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Carlson S, Tanouye U, Omarsdottir S, Murphy BT. Phylum-specific regulation of resistomycin production in a Streptomyces sp. via microbial coculture. J Nat Prod 2015; 78:381-387. [PMID: 25537064 DOI: 10.1021/np500767u] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Actinomycete genomes are encoded with immense potential to produce secondary metabolites, however standard laboratory culture experiments rarely provide the conditions under which associated biosynthetic pathways are expressed. Despite years of research attempting to access these pathways and aside from a few well-studied bacterial quorum sensing systems, little is known about the specificity of secondary metabolite regulation in bacteria, such as the conditions under which a bacterium produces an antibiotic and the extent to which it does so in recognition of a particular species in the immediate environment. In the current study, we observed that the cocultivation of a Streptomyces sp. (strain B033) with four pathogenic strains of the phylum Proteobacteria resulted in the production of the antibiotic resistomycin. After further coculture experiments, we determined that Proteobacteria induced the production of resistomycin in B033 at significantly higher rates (65%) than strains from the phyla Firmicutes (5.9%) and Actinobacteria (9.1%), supporting that the regulation of secondary metabolism in bacteria can be dependent on the species present in the immediate environment. These results suggest a lack of promiscuity of antibiotic biosynthetic pathway regulation and indicate that it is feasible to mine existing microbial strain libraries for antibiotics in a phylum-specific manner.
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Affiliation(s)
- Skylar Carlson
- †Department of Medicinal Chemistry and Pharmacognosy, Center for Pharmaceutical Biotechnology, Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood Street, Chicago, Illinois 60612, United States
| | - Urszula Tanouye
- †Department of Medicinal Chemistry and Pharmacognosy, Center for Pharmaceutical Biotechnology, Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood Street, Chicago, Illinois 60612, United States
| | - Sesselja Omarsdottir
- ‡Faculty of Pharmaceutical Sciences, University of Iceland, Hagi, Hofsvallagata 53, IS-107, Reykjavík, Iceland
| | - Brian T Murphy
- †Department of Medicinal Chemistry and Pharmacognosy, Center for Pharmaceutical Biotechnology, Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood Street, Chicago, Illinois 60612, United States
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Mullowney MW, Ó hAinmhire E, Shaikh A, Wei X, Tanouye U, Santarsiero BD, Burdette JE, Murphy BT. Diazaquinomycins E-G, novel diaza-anthracene analogs from a marine-derived Streptomyces sp. Mar Drugs 2014; 12:3574-86. [PMID: 24921978 PMCID: PMC4071591 DOI: 10.3390/md12063574] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 05/25/2014] [Accepted: 05/28/2014] [Indexed: 11/28/2022] Open
Abstract
As part of our program to identify novel secondary metabolites that target drug-resistant ovarian cancers, a screening of our aquatic-derived actinomycete fraction library against a cisplatin-resistant ovarian cancer cell line (OVCAR5) led to the isolation of novel diaza-anthracene antibiotic diazaquinomycin E (DAQE; 1), the isomeric mixture of diazaquinomycin F (DAQF; 2) and diazaquinomycin G (DAQG; 3), and known analog diazaquinomycin A (DAQA; 4). The structures of DAQF and DAQG were solved through deconvolution of X-Ray diffraction data of their corresponding co-crystal. DAQE and DAQA exhibited moderate LC50 values against OVCAR5 of 9.0 and 8.8 μM, respectively. At lethal concentrations of DAQA, evidence of DNA damage was observed via induction of apoptosis through cleaved-PARP. Herein, we will discuss the isolation, structure elucidation, and biological activity of these secondary metabolites.
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Affiliation(s)
- Michael W Mullowney
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, IL 60612, USA.
| | - Eoghainín Ó hAinmhire
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, IL 60612, USA.
| | - Anam Shaikh
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, IL 60612, USA.
| | - Xiaomei Wei
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, IL 60612, USA.
| | - Urszula Tanouye
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, IL 60612, USA.
| | - Bernard D Santarsiero
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, IL 60612, USA.
| | - Joanna E Burdette
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, IL 60612, USA.
| | - Brian T Murphy
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, IL 60612, USA.
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Hart KM, Kulakova AN, Allen CCR, Simpson AJ, Oppenheimer SF, Masoom H, Courtier-Murias D, Soong R, Kulakov LA, Flanagan PV, Murphy BT, Kelleher BP. Tracking the fate of microbially sequestered carbon dioxide in soil organic matter. Environ Sci Technol 2013; 47:5128-5137. [PMID: 23611116 DOI: 10.1021/es3050696] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The microbial contribution to soil organic matter (SOM) has recently been shown to be much larger than previously thought and thus its role in carbon sequestration may also be underestimated. In this study we employ (13)C ((13)CO₂) to assess the potential CO₂ sequestration capacity of soil chemoautotrophic bacteria and combine nuclear magnetic resonance (NMR) with stable isotope probing (SIP), techniques that independently make use of the isotopic enrichment of soil microbial biomass. In this way molecular information generated from NMR is linked with identification of microbes responsible for carbon capture. A mathematical model is developed to determine real-time CO₂ flux so that net sequestration can be calculated. Twenty-eight groups of bacteria showing close homologies with existing species were identified. Surprisingly, Ralstonia eutropha was the dominant group. Through NMR we observed the formation of lipids, carbohydrates, and proteins produced directly from CO₂ utilized by microbial biomass. The component of SOM directly associated with CO₂ capture was calculated at 2.86 mg C (89.21 mg kg(-1)) after 48 h. This approach can differentiate between SOM derived through microbial uptake of CO₂ and other SOM constituents and represents a first step in tracking the fate and dynamics of microbial biomass in soil.
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Affiliation(s)
- Kris M Hart
- School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
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Kondratyuk TP, Park EJ, Yu R, van Breemen RB, Asolkar RN, Murphy BT, Fenical W, Pezzuto JM. Novel marine phenazines as potential cancer chemopreventive and anti-inflammatory agents. Mar Drugs 2012; 10:451-464. [PMID: 22412812 PMCID: PMC3297008 DOI: 10.3390/md10020451] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Revised: 02/08/2012] [Accepted: 02/13/2012] [Indexed: 02/07/2023] Open
Abstract
Two new (1 and 2) and one known phenazine derivative (lavanducyanin, 3) were isolated and identified from the fermentation broth of a marine-derived Streptomyces sp. (strain CNS284). In mammalian cell culture studies, compounds 1, 2 and 3 inhibited TNF-α-induced NFκB activity (IC50 values of 4.1, 24.2, and 16.3 μM, respectively) and LPS-induced nitric oxide production (IC50 values of >48.6, 15.1, and 8.0 μM, respectively). PGE2 production was blocked with greater efficacy (IC50 values of 7.5, 0.89, and 0.63 μM, respectively), possibly due to inhibition of cyclooxygenases in addition to the expression of COX-2. Treatment of cultured HL-60 cells led to dose-dependent accumulation in the subG1 compartment of the cell cycle, as a result of apoptosis. These data provide greater insight on the biological potential of phenazine derivatives, and some guidance on how various substituents may alter potential anti-inflammatory and anti-cancer effects.
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MESH Headings
- Animals
- Anti-Inflammatory Agents, Non-Steroidal/chemistry
- Anti-Inflammatory Agents, Non-Steroidal/isolation & purification
- Anti-Inflammatory Agents, Non-Steroidal/metabolism
- Anti-Inflammatory Agents, Non-Steroidal/pharmacology
- Antibiotics, Antineoplastic/chemistry
- Antibiotics, Antineoplastic/isolation & purification
- Antibiotics, Antineoplastic/metabolism
- Antibiotics, Antineoplastic/pharmacology
- Anticarcinogenic Agents/chemistry
- Anticarcinogenic Agents/isolation & purification
- Anticarcinogenic Agents/metabolism
- Anticarcinogenic Agents/pharmacology
- Apoptosis/drug effects
- Aquatic Organisms/metabolism
- Cell Line, Transformed
- Drug Discovery
- Fermentation
- G1 Phase/drug effects
- Gene Expression Regulation, Enzymologic/drug effects
- HL-60 Cells
- Humans
- Inhibitory Concentration 50
- Leukemia, Promyelocytic, Acute/drug therapy
- Macrophages/drug effects
- Macrophages/immunology
- Macrophages/metabolism
- Mice
- Phenazines/chemistry
- Phenazines/isolation & purification
- Phenazines/metabolism
- Phenazines/pharmacology
- Streptomyces/metabolism
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Affiliation(s)
- Tamara P. Kondratyuk
- College of Pharmacy, University of Hawaii at Hilo, 34 Rainbow Drive, Hilo, HI 96720, USA; (T.P.K.); (E.-J.P.)
| | - Eun-Jung Park
- College of Pharmacy, University of Hawaii at Hilo, 34 Rainbow Drive, Hilo, HI 96720, USA; (T.P.K.); (E.-J.P.)
| | - Rui Yu
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA; (R.Y.); (R.B.B.); (B.T.M.)
| | - Richard B. van Breemen
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA; (R.Y.); (R.B.B.); (B.T.M.)
| | - Ratnakar N. Asolkar
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California-San Diego, La Jolla, CA 92093, USA; (R.N.A.); (W.F.)
| | - Brian T. Murphy
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA; (R.Y.); (R.B.B.); (B.T.M.)
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California-San Diego, La Jolla, CA 92093, USA; (R.N.A.); (W.F.)
| | - William Fenical
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California-San Diego, La Jolla, CA 92093, USA; (R.N.A.); (W.F.)
| | - John M. Pezzuto
- College of Pharmacy, University of Hawaii at Hilo, 34 Rainbow Drive, Hilo, HI 96720, USA; (T.P.K.); (E.-J.P.)
- Author to whom correspondence should be addressed; ; Tel.: +1-808-933-2909; Fax: +1-808-933-2981
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Oh H, Jensen PR, Murphy BT, Fiorilla C, Sullivan JF, Ramsey T, Fenical W. Cryptosphaerolide, a cytotoxic Mcl-1 inhibitor from a marine-derived ascomycete related to the genus Cryptosphaeria. J Nat Prod 2010; 73:998-1001. [PMID: 20462271 PMCID: PMC2901504 DOI: 10.1021/np1000889] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Examination of the saline fermentation products from the marine-derived ascomycete fungal strain CNL-523 (Cryptosphaeria sp.) resulted in the isolation of cryptosphaerolide (1). The new compound is an ester-substituted sesquiterpenoid related to the eremophilane class. The structure of the new compound was assigned by spectroscopic and chemical methods. Cryptosphaerolide was found to be an inhibitor of the protein Mcl-1, a cancer drug target involved in apoptosis. It also showed significant cytotoxicity against an HCT-116 human colon carcinoma cell line, indicating that the compound may be of value in exploring the Mcl-1 pathway as a target for cancer chemotherapy.
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Affiliation(s)
| | | | | | | | | | - Timothy Ramsey
- To whom correspondence should be addressed: W. Fenical, Tel: (858) 822-0595. Fax: (858)-558-1318, ; T. Ramsey, Tel: (617) 871-7398, Fax: (617) 871-4081,
| | - William Fenical
- To whom correspondence should be addressed: W. Fenical, Tel: (858) 822-0595. Fax: (858)-558-1318, ; T. Ramsey, Tel: (617) 871-7398, Fax: (617) 871-4081,
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Murphy BT, Narender T, Kauffman CA, Woolery M, Jensen PR, Fenical W. Saliniquinones A-F, New Members of the Highly Cytotoxic Anthraquinone-γ-Pyrones from the Marine Actinomycete Salinispora arenicola.. Aust J Chem 2010; 63. [PMID: 24223427 DOI: 10.1071/ch10068] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Six new anthraquinone-γ-pyrones, saliniquinones A-F (1-6), which are related to metabolites of the pluramycin/altromycin class, were isolated from a fermentation broth of the marine actinomycete Salinispora arenicola (strain CNS-325). Their structures were determined by analysis of one- and two-dimensional NMR spectroscopic and high-resolution mass spectrometric data. The relative and absolute configurations of compounds 1-6 were determined by analysis of NOESY NMR spectroscopic data and by comparison of circular dichroism and optical rotation data with model compounds found in the literature. Saliniquinone A (1) exhibited potent inhibition of the human colon adenocarcinoma cell line (HCT-116) with an IC50 of 9.9 × 10-9 M. In the context of the biosynthetic diversity of S. arenicola, compounds 1-6 represent secondary metabolites that appear to be strain specific and thus occur outside of the core group of compounds commonly observed from this species.
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Affiliation(s)
- Brian T Murphy
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California-San Diego, La Jolla, CA 92093-0204, USA
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Murphy BT, Cao S, Brodie P, Maharavo J, Andriamanantoanina H, Ravelonandro P, Kingston DG. Antiproliferative bistramides from Trididemnum cyclops from Madagascar (1). J Nat Prod 2009; 72:1338-40. [PMID: 19555084 PMCID: PMC2905825 DOI: 10.1021/np900072k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Bioassay-guided fractionation of a marine extract from Trididemnum cyclops afforded the new lipopeptide 39-oxobistramide K (1) and the known bistramides A (2) and D (3). Structure elucidation of 1 was carried out by analysis of one- and two-dimensional NMR spectroscopy and HRMS data. Bistramides have been reported to exhibit antiproliferative activity in the nanomolar range against a number of tumor cell lines in vitro and in vivo. The isolate 1 was tested for antiproliferative activity against the A2780 cell line and exhibited an IC(50) value of 0.34 microM.
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Affiliation(s)
- Brian T. Murphy
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0212
| | - Shugeng Cao
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0212
| | - Peggy Brodie
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0212
| | - Jean Maharavo
- Centre National de Recherches sur l'Environnement, BP 1739 Fiadanana – Tsimbazaza, 101 Antananarivo, Madagascar
| | - Hanta Andriamanantoanina
- Centre National de Recherches sur l'Environnement, BP 1739 Fiadanana – Tsimbazaza, 101 Antananarivo, Madagascar
| | - Pierre Ravelonandro
- Centre National de Recherches sur l'Environnement, BP 1739 Fiadanana – Tsimbazaza, 101 Antananarivo, Madagascar
| | - David G.I. Kingston
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0212
- To whom correspondence should be addressed. Tel: (540) 231-6570. Fax: (540) 231-3255.
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Cao S, Murphy BT, Foster C, Lazo JS, Kingston DGI. Bioactivities of simplified adociaquinone B and naphthoquinone derivatives against Cdc25B, MKP-1, and MKP-3 phosphatases. Bioorg Med Chem 2008; 17:2276-81. [PMID: 19028102 DOI: 10.1016/j.bmc.2008.10.090] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2008] [Revised: 10/03/2008] [Accepted: 10/31/2008] [Indexed: 12/21/2022]
Abstract
Some simplified adociaquinone B analogs and a series of 1,4-naphthoquinone derivatives were synthesized and tested against the three enzymes Cdc25B, MKP-1, and MKP-3. Cdc25B and MKP-1 in particular are enzymes overexpressed in human cancer cells, and they represent potential molecular targets for novel cancer chemotherapeutic treatments. A number of analogs exhibited significant inhibitory activity against these enzymes, and the bioassay data in addition to structure-activity relationships of these compounds will be discussed.
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Affiliation(s)
- Shugeng Cao
- Department of Chemistry, Virginia Polytechnic Institute and State University, 3111 Hahn Hall, M/C 0212, Blacksburg, VA 24061, USA
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Murphy BT, Brodie P, Slebodnick C, Miller JS, Birkinshaw C, Randrianjanaka LM, Andriantsiferana R, Rasamison VE, TenDyke K, Suh EM, Kingston DGI. Antiproliferative limonoids of a Malleastrum sp. from the Madagascar rainforest. J Nat Prod 2008; 71:325-9. [PMID: 18177014 PMCID: PMC2908263 DOI: 10.1021/np070487q] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Bioassay-guided fractionation of an ethanol extract of a Malleastrum sp. afforded three new limonoids, malleastrones A-C ( 1- 3), respectively. Each limonoid contained a rare tetranortriterpenoid skeleton. Structure elucidation of the isolates was carried out by analysis of one- and two-dimensional NMR and X-ray diffraction data. The novel isolates 1 and 2 were tested for antiproliferative activity against a panel of cancer cell lines and exhibited IC 50 values ranging from 0.19 to 0.63 microM.
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Affiliation(s)
- Brian T Murphy
- Department of Chemistry, Virginia Polythecnic Institute, Blasburg, Virginia, USA
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Murphy BT, Cao S, Brodie PJ, Miller JS, Ratovoson F, Birkinshaw C, Rakotobe E, Rasamison VE, Tendyke K, Suh EM, Kingston DGI. Antiproliferative compounds of Artabotrys madagascariensis from the Madagascar rainforest. Nat Prod Res 2008; 22:1169-75. [PMID: 18855218 PMCID: PMC2786269 DOI: 10.1080/14786410701726525] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Bioassay-guided fractionation of an ethanol extract of Artabotrys madagascariensis led to the isolation of the new compound artabotrene (1), two butenolides (2 and 3), and the tetracyclic triterpene polycarpol (4). Structure elucidation was determined on the basis of one and two-dimensional NMR, and absolute configuration of compounds 2-4 was verified by analysis of CD and optical rotation spectra. Two of the isolates, melodorinol (2) and acetylmelodorinol (3), were found to display antiproliferative activity against five different tumour cell lines with IC50 values ranging from 2.4 to 12 microM.
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Affiliation(s)
- Brian T. Murphy
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0212, USA
| | - Shugeng Cao
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0212, USA
| | - Peggy J. Brodie
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0212, USA
| | - James S. Miller
- Missouri Botanical Garden, P.O. Box 299, St. Louis Missouri 63166-0299
| | - Fidy Ratovoson
- Missouri Botanical Garden, P.O. Box 299, St. Louis Missouri 63166-0299
| | - Chris Birkinshaw
- Missouri Botanical Garden, P.O. Box 299, St. Louis Missouri 63166-0299
| | - Etienne Rakotobe
- Centre National d’Application et Recherches Pharmaceutiques, B.P 702, Antananarivo 101, Madagascar
| | - Vincent E. Rasamison
- Centre National d’Application et Recherches Pharmaceutiques, B.P 702, Antananarivo 101, Madagascar
| | - Karen Tendyke
- Eisai Research Institute, 4 Corporate Drive, Andover, MA 01810-2441, USA
| | - Edward M. Suh
- Eisai Research Institute, 4 Corporate Drive, Andover, MA 01810-2441, USA
| | - David G. I. Kingston
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0212, USA
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Murphy BT, Cao S, Norris A, Miller JS, Ratovoson F, Andriantsiferana R, Rasamison VE, Kingston DG. Cytotoxic compounds of Schizolaena hystrix from the Madagascar rainforest. Planta Med 2006; 72:1235-8. [PMID: 16902871 DOI: 10.1055/s-2006-947192] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Bioassay-guided fractionation of a crude ethanol extract from a Madagascar collection of Schizolaena hystrix afforded the two new long-chain compounds, 3 S-acetoxyeicosanoic acid ethyl ester ( 1) and 3 S-acetoxydoeicosanoic acid ( 2), and the known long-chain compound 3 S-acetoxyeicosanoic acid ( 3). In addition, the long-chain alcohol 1-hydroxydodecan-2-one ( 7), as well as the new flavonoid schizolaenone C ( 4) and the two known flavonoids diplacol ( 5) and 3'-prenylnaringenin ( 6) were isolated from a methanol extract of the same plant. Isolation and structure elucidation of the novel compounds and the cytotoxicities of all the isolates are reported.
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Affiliation(s)
- Brian T Murphy
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
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Murphy BT, Cao S, Norris A, Miller JS, Ratovoson F, Andriantsiferana R, Rasamison VE, Kingston DGI. Cytotoxic flavanones of Schizolaena hystrix from the Madagascar rainforest. J Nat Prod 2005; 68:417-9. [PMID: 15787448 DOI: 10.1021/np049639x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Bioassay-guided fractionation of an ethanol extract of a Madagascar collection of Schizolaena hystrix afforded three new flavanones, schizolaenone A (1), schizolaenone B (2), and 4'-O-methylbonannione A (3), as well as three known flavanones, nymphaeol A, bonannione A, and macarangaflavanone B, and the flavanol bonanniol A. The structures of compounds 1-3 were determined by various one- and two-dimensional NMR techniques. All of the isolates were tested for cytotoxicity against the A2780 human ovarian cancer cell line. Nymphaeol A (IC(50) = 5.5 microg/mL) exhibited the greatest cytotoxicity, while the other flavanones were found to be only weakly active.
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Affiliation(s)
- Brian T Murphy
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0212, USA
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Murphy BT, MacKinnon SL, Yan X, Hammond GB, Vaisberg AJ, Neto CC. Identification of triterpene hydroxycinnamates with in vitro antitumor activity from whole cranberry fruit (Vaccinium macrocarpon). J Agric Food Chem 2003; 51:3541-3545. [PMID: 12769521 DOI: 10.1021/jf034114g] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Bioactivity-guided fractionation of cranberry fruit was used to determine the identity of triterpenoid esters from Vaccinium macrocarpon, which inhibit tumor cell growth and may play a role in cancer prevention. In our previous study, a fraction from whole fruit exhibited tumor cell growth inhibition in vitro. The major components of this fraction were isolated by chromatographic separation of ethyl acetate extracts, purified by semipreparative HPLC, and identified by NMR as cis- (1) and trans- (2) isomers of 3-O-p-hydroxycinnamoyl ursolic acid. These triterpenoid esters have not been previously reported in Vaccinium fruit. Bioassay of the purified triterpene cinnamates in tumor cell lines in vitro showed slightly greater activity of compound 1 in most cell lines, with GI(50) values of approximately 20 microM in MCF-7 breast, ME180 cervical and PC3 prostate tumor cell lines. Quercetin was slightly less active than 1, while cyanidin-3-galactoside exhibited much lower cytotoxicity, with GI(50) greater than 250 microM in all cell lines. Phenylboronic acid (3) was also isolated from the fruit but showed insignificant antitumor activity.
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Affiliation(s)
- Brian T Murphy
- Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth, North Dartmouth 02747, USA
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Yan X, Murphy BT, Hammond GB, Vinson JA, Neto CC. Antioxidant activities and antitumor screening of extracts from cranberry fruit (Vaccinium macrocarpon). J Agric Food Chem 2002; 50:5844-5849. [PMID: 12358448 DOI: 10.1021/jf0202234] [Citation(s) in RCA: 153] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Polyphenolic compounds in cranberries have been investigated to determine their role in protection against cardiovascular disease and some cancers. Extracts of whole fruit were assayed for radical-scavenging activity and tumor growth inhibition using seven tumor cell lines. Selective inhibition of K562 and HT-29 cells was observed from a methanolic extract in the range of 16-125 microg/mL. Radical-scavenging activity was greatest in an extract composed primarily of flavonol glycosides. Seven flavonol glycosides were isolated and purified from whole fruit for further evaluation; the anthocyanin cyanidin 3-galactoside was also purified for comparison with the flavonoids. Three flavonol monoglycosides were newly identified by (13)C NMR as myricetin 3-alpha-arabinofuranoside, quercetin 3-xyloside, and 3-methoxyquercetin 3-beta-galactoside (isorhamnetin); the other four isolated were the previously identified myricetin 3-beta-galactoside, quercetin 3-beta-galactoside, quercetin 3-alpha-arabinofuranoside, and quercetin 3-alpha-rhamnopyranoside. These compounds were evaluated for 1,1-diphenyl-2-picrylhydrazyl radical-scavenging activity and ability to inhibit low-density lipoprotein oxidation in vitro. Most of the flavonol glycosides showed antioxidant activity comparable or superior to that of vitamin E; cyanidin 3-galactoside showed activity superior to that of the flavonoids as well as vitamin E or Trolox in both antioxidant assays.
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Affiliation(s)
- Xiaojun Yan
- Department of Chemistry and Biochemistry, University of Massachusetts-Dartmouth, North Dartmouth, Massachusetts 02747, USA
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