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Oroidin

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Oroidin
Names
Preferred IUPAC name
N-[(2E)-3-(2-Amino-1H-imidazol-5-yl)prop-2-en-1-yl]-4,5-dibromo-1H-pyrrole-2-carboxamide
Identifiers
3D model (JSmol)
ChemSpider
UNII
  • InChI=1S/C11H11Br2N5O/c12-7-4-8(18-9(7)13)10(19)15-3-1-2-6-5-16-11(14)17-6/h1-2,4-5,18H,3H2,(H,15,19)(H3,14,16,17)/b2-1+
    Key: QKJAXHBFQSBDAR-OWOJBTEDSA-N
  • InChI=1/C11H11Br2N5O/c12-7-4-8(18-9(7)13)10(19)15-3-1-2-6-5-16-11(14)17-6/h1-2,4-5,18H,3H2,(H,15,19)(H3,14,16,17)/b2-1+
    Key: QKJAXHBFQSBDAR-OWOJBTEDBG
  • C1=C(NC(=C1Br)Br)C(=O)NC/C=C/C2=CNC(=N2)N
Properties
C11H11Br2N5O
Molar mass 389.051 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Oroidin is a bromopyrrole alkaloid, originally isolated from marine sponges in the genus Agelas.[1][2][3] Its complex structure leads to wide biological activities, which makes Oroidin a potential drug candidate for various diseases.[4] It also serves as chemical defense in marine sponges.[5]

Occurrence and properties

Oroidin is a secondary metabolite extracted from marine sponges.[5] It belongs to the pyrrole-2-aminoimidazole structural class, which is a family of marine alkaloids with many secondary metabolites in marine sponges.[6] These compounds show unique structural complexity and exclusively studied biological activities.[4]

Oroidin was first extracted from marine sponge Agelas in 1971.[1][3][2] Studies later found that Oroidin is present in other genera of sponges, such as Hymeniacidon, Cymbaxinella, Axinella.[7][8][4]

The relatively simple structure and lower molecular mass of Oroidin compared to other pyrrole-2-aminoimidazoles makes Oroidin suitable for chemical optimization.[9] Researchers have synthesized many Oroidin derivatives to improve the biological activities.[6] Adding additional side chains and/or functional groups gives many possibilities for new natural derivatives.[9] Those derivatives can also arise through dimerization of the parent Oroidin system.[10][11][12] Specifically, the polycyclic property of Oroidin helps build diverse polycyclic natural metabolites. Combinations of pyrrolic building blocks and different cyclization dimerization fashions produce these polycyclic derivatives.[7] However, details of the biosynthesis of these derivatives still remain unclear.[10]

Biological activities

Oroidin analogues have anticancer,[13] antiparasitic,[4] and antibiofilm[14] activities and therefore are a potential drug candidate for cancers, parasitic infections, and biofilm.

Cancer

Oroidin analogues have the modified structure of the original.[13] Analogues with increasing number of carbon atoms in the alkane component of the molecule show higher cytotoxicity than the original molecule towards cancer cells, making the analogs a promising anticancer drug candidate.[13] Oroidin analogues appear to inhibit the growth of colon cancer cells the most, but the precise mechanism remains unclear.[13]

Oroidin further helps cancer treatment development by inhibiting multidrug resistance (MDR) activity.[8] MDR possess resistance to anticancer agents and therefore significantly hinders cancer treatment.[8] Oroidin reverses MDR by interfering the MDR enzyme activity without having severe toxicity unlike other compounds.[8] It is thus a potential novel drug lead for MDR with no or little toxicity towards cancer patients.

Parasitic diseases

Oroidin also shows moderate anti-protozoal activity against several major parasites. Oroidin kills and/or inhibits the growth of Trypanosoma brucei rhodesiense (causes African sleeping sickness), Trypanosoma cruzi, (causes Chagas disease), Leishmania donovani (causes Leishmaniasis), and Plasmodium falciparum (causes Malaria), making it a potential treatment for these diseases.[4]

Bacteria biofilm

Oroidin inhibits bacteria biofilm formation and its analog is a pivotal compound in developing biofilm inhibitors.[14]Bacteria biofilm leads to skin infection and is typically resistant to antibiotics.[14] Therefore, the antibiofilm activity of Oroidin helps develop effective treatment for biofilm skin infection.

Ecological function

Sea sponge Agelas

Oroidin defends marine sponges against predation and disease outbreak. The sponges produce and secrete Oroidin (possibility with other secondary metabolites) in response to these ecological threats.[15] In 1996, Oroidin and its hydrolysis product, 4,5-dibromo-1H-pyrrole-2-carboxylic acid, were isolated and identified as the chemical defensesagainst fish predators.[5][8] Later, a study found that Oroidin also regulates bacterioplankton communities and inhibit pathogenesis.[15]

A study suggests site-specific variation in secretion concentration of Oroidin.[15] This could be due to different environmental conditions, such as differences in ocean depth and particulate organic matter (POM) availability.[15] POM is a major nutrient source for sponges at depths, and POM availability increases with increasing depth.[15] Deep sea sponges secrete Oroidin three times more than shallow sponges, possibly due to the increased POM availability for energetic surplus.[15]

The chemical defense mechanisms still remain unclear since most studies on Oroidin focus on its biological activities.[10] However, molecules responsible for chemical defense appear to be evolutionary conserved and contribute to the success of marine sponges.[5]

See also

References

  1. ^ a b Forenza, S.; Minale, L.; Riccio, R.; Fattorusso, E. (1971). "New bromo-pyrrole derivatives from the sponge Agelas oroides". Journal of the Chemical Society D: Chemical Communications (18): 1129. doi:10.1039/c29710001129. ISSN 0577-6171.
  2. ^ a b Young, Ian S.; Thornton, Paul D.; Thompson, Alison (2010). "Synthesis of natural products containing the pyrrolic ring". Natural Product Reports. 27 (12): 1801–1839. doi:10.1039/c0np00014k. ISSN 0265-0568. PMID 20936222.
  3. ^ a b Blunt, John W.; Carroll, Anthony R.; Copp, Brent R.; Davis, Rohan A.; Keyzers, Robert A.; Prinsep, Michèle R. (2018-01-25). "Marine natural products". Natural Product Reports. 35 (1): 8–53. doi:10.1039/C7NP00052A. hdl:10072/381349. ISSN 1460-4752. PMID 29335692.
  4. ^ a b c d e Forte, Barbara; Malgesini, Beatrice; Piutti, Claudia; Quartieri, Francesca; Scolaro, Alessandra; Papeo, Gianluca (2009-11-27). "A Submarine Journey: The Pyrrole-Imidazole Alkaloids". Marine Drugs. 7 (4): 705–753. doi:10.3390/md7040705. ISSN 1660-3397. PMC 2810223. PMID 20098608.
  5. ^ a b c d Chanas, Brian; Pawlik, Joseph R.; Lindel, Thomas; Fenical, William (1997-01-03). "Chemical defense of the Caribbean sponge Agelas clathrodes (Schmidt)". Journal of Experimental Marine Biology and Ecology. 208 (1): 185–196. doi:10.1016/S0022-0981(96)02653-6. ISSN 0022-0981.
  6. ^ a b Gjorgjieva, Marina; Masic, Lucija Peterlin; Kikelj, Danijel (2018-10-12). "Antibacterial and Antibiofilm Potentials of Marine Pyrrole-2-Aminoimidazole Alkaloids and their Synthetic Analogs". Mini-Reviews in Medicinal Chemistry. 18 (19): 1640–1658. doi:10.2174/1389557516666160505120157. PMID 27145848. S2CID 21478361.
  7. ^ a b Al Mourabit, Ali; Potier, Pierre (2000-12-14). <237::aid-ejoc237>3.0.co;2-v "Sponge's Molecular Diversity Through the Ambivalent Reactivity of 2-Aminoimidazole: A Universal Chemical Pathway to the Oroidin-Based Pyrrole-Imidazole Alkaloids and Their Palau'amine Congeners". European Journal of Organic Chemistry. 2001 (2): 237–243. doi:10.1002/1099-0690(200101)2001:2<237::aid-ejoc237>3.0.co;2-v. ISSN 1434-193X.
  8. ^ a b c d e da Silva, Fernanda R.; Tessis, Ana Claudia; Ferreira, Patricia F.; Rangel, Luciana P.; Garcia-Gomes, Aline S.; Pereira, Fabio R.; Berlinck, Roberto G. S.; Muricy, Guilherme; Ferreira-Pereira, Antonio (2011-01-05). "Oroidin Inhibits the Activity of the Multidrug Resistance Target Pdr5p from Yeast Plasma Membranes". Journal of Natural Products. 74 (2): 279–282. doi:10.1021/np1006247. ISSN 0163-3864. PMID 21207971.
  9. ^ a b Zidar, Nace; Montalvão, Sofia; Hodnik, Žiga; Nawrot, Dorota A.; Žula, Aleš; Ilaš, Janez; Kikelj, Danijel; Tammela, Päivi; Mašič, Lucija Peterlin (2014-02-14). "Antimicrobial Activity of the Marine Alkaloids, Clathrodin and Oroidin, and Their Synthetic Analogues". Marine Drugs. 12 (2): 940–963. doi:10.3390/md12020940. ISSN 1660-3397. PMC 3944524. PMID 24534840.
  10. ^ a b c Das, Jayanta; Bhandari, Manojkumar; Lovely, Carl J. (2016-01-01), Atta-ur-Rahman (ed.), Chapter 10 - Isolation, Bioactivity, and Synthesis of Nagelamides, Studies in Natural Products Chemistry, vol. 50, Elsevier, pp. 341–371, doi:10.1016/b978-0-444-63749-9.00010-4, ISBN 9780444637499, retrieved 2023-04-09
  11. ^ Stout, E. Paige; Morinaka, Brandon I.; Wang, Yong-Gang; Romo, Daniel; Molinski, Tadeusz F. (2012-04-27). "De Novo Synthesis of Benzosceptrin C and Nagelamide H from 7- 15 N-Oroidin: Implications for Pyrrole–Aminoimidazole Alkaloid Biosynthesis". Journal of Natural Products. 75 (4): 527–530. doi:10.1021/np300051k. ISSN 0163-3864. PMC 3694594. PMID 22455452.
  12. ^ Stout, E. Paige; Wang, Yong-Gang; Romo, Daniel; Molinski, Tadeusz F. (2012-05-14). "Pyrrole Aminoimidazole Alkaloid Metabiosynthesis with Marine Sponges Agelas conifera and Stylissa caribica". Angewandte Chemie International Edition. 51 (20): 4877–4881. doi:10.1002/anie.201108119. PMC 3917718. PMID 22473581.
  13. ^ a b c d Dyson, Lauren; Wright, Anthony D.; Young, Kelly A.; Sakoff, Jennette A.; McCluskey, Adam (2014-03-01). "Synthesis and anticancer activity of focused compound libraries from the natural product lead, oroidin". Bioorganic & Medicinal Chemistry. 22 (5): 1690–1699. doi:10.1016/j.bmc.2014.01.021. ISSN 0968-0896. PMID 24508308.
  14. ^ a b c Richards, Justin J.; Reyes, Samuel; Stowe, Sean D.; Tucker, Ashley T.; Ballard, T. Eric; Mathies, Laura D.; Cavanagh, John; Melander, Christian (2009-08-13). "Amide Isosteres of Oroidin: Assessment of Antibiofilm Activity and C. elegans Toxicity". Journal of Medicinal Chemistry. 52 (15): 4582–4585. doi:10.1021/jm900378s. ISSN 0022-2623. PMC 2739084. PMID 19719234.
  15. ^ a b c d e f Clayshulte Abraham, A; Gochfeld, DJ; Avula, B; Macartney, KJ; Lesser, MP; Slattery, M (2022-06-02). "Variability in antimicrobial chemical defenses in the Caribbean sponge Agelas tubulata: implications for disease resistance and resilience". Marine Ecology Progress Series. 690: 51–64. doi:10.3354/meps14042. ISSN 0171-8630.
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