Marine natural products from Padina, Plexaura, Pseudopterogorgia, and Valonia reduce the respiration of yeast cells in culture

2021 ◽  
Author(s):  
Rol-J Williams ◽  
Jolie Pistol ◽  
Shane Austin
Keyword(s):  
Natural Products ◽  
Marine Natural Products ◽  
Yeast Cells ◽  
Cells In Culture

Chemistry and biology of Okinawan marine natural products

2009 ◽  
Vol 81 (6) ◽  
pp. 1009-1018 ◽  
Author(s):  
Jun'ichi Kobayashi
Keyword(s):  
Natural Products ◽  
Marine Natural Products ◽  
Shape Change ◽  
Biological Activities ◽  
Yeast Cells ◽  
Receptor Ligands ◽  
Hybrid Molecules ◽  
Adenosine Receptor Ligands ◽  
Micro Organisms ◽  
Cytotoxic Macrolide

Marine macro- and micro-organisms collected in Okinawa are good sources of compounds with intriguing structures and interesting biological activities. Synthetic hybrid molecules of caffeine and eudistomin D from tunicates Eudistoma sp. were found to show better potency as adenosine receptor ligands than caffeine, and one of them exhibits potent activity for adenosine receptors tested, especially for A3 subtype. Potent cytotoxic polyene macrolides from a tunicate Cystodytes sp. were found to be potent osteoclast inhibitors and to inhibit vacuolar type H+-ATPase (V-ATPase) of both mammalian and yeast cells. Amphidinolactones A and B are new macrolides from a dinoflagellate Amphidinium sp., and a potent cytotoxic macrolide from another strain was found to target actin cytoskeleton. Theonezolide A, a long-chain polyketide from a sponge Theonella sp., induces a drastic shape change in platelets by reorganization of microtubules. The stereochemistry of many chiral centers in theonezolide A was elucidated by spectral data and chemical means. Metachromins L-Q are new sesquiterpenoid quinones with an amino acid residue, while nakijiquinones E and F were the first dimeric sesquiterpenoid quinones possessing a 3-aminobenzoate moiety. Halichonadin E is the first hetero-dimeric sesquiterpenoid with eudesmane and aromadendrane skeletons linked through a urea fragment isolated from a sponge Halichondria sp. Pyrinadine A and nakinadine A are novel bis-pyridine alkaloids from sponges, while nagelamides are new bromopyrrole alkaloids from a sponge Agelas sp. Here, the structures and bioactivities of these interesting marine natural products will be described.

The discoipyrroles: A multifaceted approach to understand a novel family of marine natural products

Planta Medica ◽  
2015 ◽  
Vol 81 (11) ◽  
Author(s):  
DA Colosimo ◽  
F Cai ◽  
Y Hu ◽  
MB Potts ◽  
MA White ◽  
...  
Keyword(s):  
Natural Products ◽  
Marine Natural Products ◽  
Multifaceted Approach

Synthesis of Marine Natural Products 1

1992 ◽  
Author(s):  
K. F. Albizati ◽  
V. A. Martin ◽  
M. R. Agharahimi ◽  
D. A. Stolze
Keyword(s):  
Natural Products ◽  
Marine Natural Products

Synthesis and Biological Evaluation of the Antimicrobial Natural Product Lipoxazolidinone A

2018 ◽  
Author(s):  
Jonathan J. Mills ◽  
Kaylib R. Robinson ◽  
Troy E. Zehnder ◽  
Joshua G. Pierce
Keyword(s):  
Natural Products ◽  
Natural Product ◽  
Mechanism Of Action ◽  
Marine Natural Products ◽  
Biological Evaluation ◽  
Lead Compounds ◽  
Follow Up Studies ◽  
Initial Resistance ◽  
Synthesis And Biological Evaluation

The lipoxazolidinone family of marine natural products, with an unusual 4-oxazolidinone heterocycle at their core, represents a new scaffold for antimicrobial discovery; however, questions regarding their mechanism of action and high lipophilicity have likely slowed follow-up studies. Herein, we report the first synthesis of lipoxazolidinone A, 15 structural analogs to explore its active pharmacophore, and initial resistance and mechanism of action studies. These results suggest that 4-oxazolidinones are valuable scaffolds for antimicrobial development and reveal simplified lead compounds for further optimization.

Neuroprotective Activities of Marine Natural Products from Marine Sponges

2016 ◽  
Vol 23 (4) ◽  
pp. 360-382 ◽  
Author(s):  
Mousa Alghazwi ◽  
Yen Qi Kan ◽  
Wei Zhang ◽  
Wei Ping Gai ◽  
Xiao-Xin Yan
Keyword(s):  
Natural Products ◽  
Marine Natural Products ◽  
Marine Sponges

Antitubercular Marine Natural Products

2018 ◽  
Vol 25 (20) ◽  
pp. 2304-2328 ◽  
Author(s):  
Lishu Wang ◽  
Jungfeng Wang ◽  
Juan Liu ◽  
Yonghong Liu
Keyword(s):  
Natural Products ◽  
Marine Natural Products ◽  
Antitubercular Activity ◽  
Marine Resources ◽  
Drug Candidates ◽  
New Drug ◽  
Chemical Constitution

Due to the importance of nature as a source of new drug candidates, the purpose of this article is to emphasize the marine natural products, which exhibit antitubercular activity, published between January 2000 and May 2016, with 138 quotations to 250 compounds obtained from marine resources. These metabolites are organized by chemical constitution and named as simple alkyl lipids derivatives, aromatics derivatives, peptides, alkaloids, terpenoids, steroids, macrolides, and polycyclic polyketides.

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