Spongenolactones A–C, Bioactive 5,5,6,6,5-Pentacyclic Spongian Diterpenes from the Red Sea Sponge <i>Spongia</i> sp.

Three new 5,5,6,6,5-pentacyclic spongian diterpenes, spongenolactones A–C (<b>1</b>–<b>3</b>), were isolated from a Red Sea sponge <i>Spongia</i> sp. The structures of the new metabolites were elucidated by extensive spectroscopic analysis and the absolute configu...

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Main Authors: Chi-Jen Tai, Atallah F. Ahmed, Chih-Hua Chao, Chia-Hung Yen, Tsong-Long Hwang, Fang-Rong Chang, Yusheng M. Huang, Jyh-Horng Sheu
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Marine Drugs
Subjects:
Online Access:https://www.mdpi.com/1660-3397/20/8/498
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author Chi-Jen Tai
Atallah F. Ahmed
Chih-Hua Chao
Chia-Hung Yen
Tsong-Long Hwang
Fang-Rong Chang
Yusheng M. Huang
Jyh-Horng Sheu
author_facet Chi-Jen Tai
Atallah F. Ahmed
Chih-Hua Chao
Chia-Hung Yen
Tsong-Long Hwang
Fang-Rong Chang
Yusheng M. Huang
Jyh-Horng Sheu
author_sort Chi-Jen Tai
collection DOAJ
description Three new 5,5,6,6,5-pentacyclic spongian diterpenes, spongenolactones A–C (<b>1</b>–<b>3</b>), were isolated from a Red Sea sponge <i>Spongia</i> sp. The structures of the new metabolites were elucidated by extensive spectroscopic analysis and the absolute configurations of <b>1–</b><b>3</b> were determined on the basis of comparison of the experimental circular dichroism (CD) and calculated electronic circular dichroism (ECD) spectra. Compounds <b>1</b>–<b>3</b> are the first 5,5,6,6,5-pentacyclic spongian diterpenes bearing an <i>β</i>-hydroxy group at C-1. These metabolites were assayed for their cytotoxic, antibacterial, and anti-inflammatory activities. All three compounds were found to exert inhibitory activity against superoxide anion generation in fMLF/CB-stimulated human neutrophils. Furthermore, <b>1</b> showed a higher activity against the growth of <i>Staphylococcus aureus</i> in comparison to <b>2</b>.
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spelling doaj.art-e2f22b00631b4e4daacf74251d03c6012023-12-01T23:55:59ZengMDPI AGMarine Drugs1660-33972022-08-0120849810.3390/md20080498Spongenolactones A–C, Bioactive 5,5,6,6,5-Pentacyclic Spongian Diterpenes from the Red Sea Sponge <i>Spongia</i> sp.Chi-Jen Tai0Atallah F. Ahmed1Chih-Hua Chao2Chia-Hung Yen3Tsong-Long Hwang4Fang-Rong Chang5Yusheng M. Huang6Jyh-Horng Sheu7Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University, Kaohsiung 80424, TaiwanDepartment of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi ArabiaSchool of Pharmacy, China Medical University, Taichung 40604, TaiwanGraduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, TaiwanGraduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, TaiwanGraduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, TaiwanDepartment of Marine Recreation, National Penghu University of Science and Technology, Magong, Penghu 88046, TaiwanDoctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University, Kaohsiung 80424, TaiwanThree new 5,5,6,6,5-pentacyclic spongian diterpenes, spongenolactones A–C (<b>1</b>–<b>3</b>), were isolated from a Red Sea sponge <i>Spongia</i> sp. The structures of the new metabolites were elucidated by extensive spectroscopic analysis and the absolute configurations of <b>1–</b><b>3</b> were determined on the basis of comparison of the experimental circular dichroism (CD) and calculated electronic circular dichroism (ECD) spectra. Compounds <b>1</b>–<b>3</b> are the first 5,5,6,6,5-pentacyclic spongian diterpenes bearing an <i>β</i>-hydroxy group at C-1. These metabolites were assayed for their cytotoxic, antibacterial, and anti-inflammatory activities. All three compounds were found to exert inhibitory activity against superoxide anion generation in fMLF/CB-stimulated human neutrophils. Furthermore, <b>1</b> showed a higher activity against the growth of <i>Staphylococcus aureus</i> in comparison to <b>2</b>.https://www.mdpi.com/1660-3397/20/8/498Red Sea sponge<i>Spongia</i> sp.5,5,6,6,5-pentacyclic spongian diterpenesanti-inflammatory assayantibacterial assay
spellingShingle Chi-Jen Tai
Atallah F. Ahmed
Chih-Hua Chao
Chia-Hung Yen
Tsong-Long Hwang
Fang-Rong Chang
Yusheng M. Huang
Jyh-Horng Sheu
Spongenolactones A–C, Bioactive 5,5,6,6,5-Pentacyclic Spongian Diterpenes from the Red Sea Sponge <i>Spongia</i> sp.
Marine Drugs
Red Sea sponge
<i>Spongia</i> sp.
5,5,6,6,5-pentacyclic spongian diterpenes
anti-inflammatory assay
antibacterial assay
title Spongenolactones A–C, Bioactive 5,5,6,6,5-Pentacyclic Spongian Diterpenes from the Red Sea Sponge <i>Spongia</i> sp.
title_full Spongenolactones A–C, Bioactive 5,5,6,6,5-Pentacyclic Spongian Diterpenes from the Red Sea Sponge <i>Spongia</i> sp.
title_fullStr Spongenolactones A–C, Bioactive 5,5,6,6,5-Pentacyclic Spongian Diterpenes from the Red Sea Sponge <i>Spongia</i> sp.
title_full_unstemmed Spongenolactones A–C, Bioactive 5,5,6,6,5-Pentacyclic Spongian Diterpenes from the Red Sea Sponge <i>Spongia</i> sp.
title_short Spongenolactones A–C, Bioactive 5,5,6,6,5-Pentacyclic Spongian Diterpenes from the Red Sea Sponge <i>Spongia</i> sp.
title_sort spongenolactones a c bioactive 5 5 6 6 5 pentacyclic spongian diterpenes from the red sea sponge i spongia i sp
topic Red Sea sponge
<i>Spongia</i> sp.
5,5,6,6,5-pentacyclic spongian diterpenes
anti-inflammatory assay
antibacterial assay
url https://www.mdpi.com/1660-3397/20/8/498
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