Isolation of Ten New Sesquiterpenes and New Abietane-Type Diterpenoid with Immunosuppressive Activity from Marine Fungus <i>Eutypella</i> sp.

<b>Background<b>:</b></b> Ten new sesquiterpenes, including eight eremophilane-type sesquiterpenes (<b>1</b>–<b>8</b>) and two compounds (<b>9</b>–<b>10</b>) with a cyclopentane ring, representing an undescribed subtype of sesqu...

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Main Authors: Nina Wang, Chunmei Chen, Qin Li, Qiqiang Liang, Yingjie Liu, Zongze Shao, Xiupian Liu, Qun Zhou
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Pharmaceuticals
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Online Access:https://www.mdpi.com/1424-8247/18/5/737
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author Nina Wang
Chunmei Chen
Qin Li
Qiqiang Liang
Yingjie Liu
Zongze Shao
Xiupian Liu
Qun Zhou
author_facet Nina Wang
Chunmei Chen
Qin Li
Qiqiang Liang
Yingjie Liu
Zongze Shao
Xiupian Liu
Qun Zhou
author_sort Nina Wang
collection DOAJ
description <b>Background<b>:</b></b> Ten new sesquiterpenes, including eight eremophilane-type sesquiterpenes (<b>1</b>–<b>8</b>) and two compounds (<b>9</b>–<b>10</b>) with a cyclopentane ring, representing an undescribed subtype of sesquiterpene, along with a new abietane-type diterpenoid (<b>11</b>), were isolated and identified from a deep-sea-derived fungus: <i>Eutypella</i> sp. <b>Methods:</b> Their structures were elucidated on the basis of various spectroscopic analyses, mainly including nuclear magnetic resonance (NMR) and high-resolution electrospray ionization mass spectrometry (HRESIMS) data, <sup>13</sup>C NMR calculations with DP4+ probability analyses, electronic circular dichroism (ECD) calculations, and single-crystal X-ray diffraction experiments. <b>Results:</b> Furthermore, compound <b>11</b> exhibited potent immunosuppressive activity with IC<sub>50</sub> values of 8.99 ± 1.08 μM in a lipopolysaccharide (LPS) model and 5.39 ± 0.20 μM in a concanavalin A (ConA) model.
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spelling doaj-art-c2b035d2f8d94625845e6cf248528ef02025-08-20T02:33:51ZengMDPI AGPharmaceuticals1424-82472025-05-0118573710.3390/ph18050737Isolation of Ten New Sesquiterpenes and New Abietane-Type Diterpenoid with Immunosuppressive Activity from Marine Fungus <i>Eutypella</i> sp.Nina Wang0Chunmei Chen1Qin Li2Qiqiang Liang3Yingjie Liu4Zongze Shao5Xiupian Liu6Qun Zhou7Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, ChinaHubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, ChinaHubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, ChinaHubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, ChinaHubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, ChinaKey Laboratory of Marine Genetic Resources, Technology Innovation Center for Exploitation of Marine Biological Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, ChinaKey Laboratory of Marine Genetic Resources, Technology Innovation Center for Exploitation of Marine Biological Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, ChinaHubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China<b>Background<b>:</b></b> Ten new sesquiterpenes, including eight eremophilane-type sesquiterpenes (<b>1</b>–<b>8</b>) and two compounds (<b>9</b>–<b>10</b>) with a cyclopentane ring, representing an undescribed subtype of sesquiterpene, along with a new abietane-type diterpenoid (<b>11</b>), were isolated and identified from a deep-sea-derived fungus: <i>Eutypella</i> sp. <b>Methods:</b> Their structures were elucidated on the basis of various spectroscopic analyses, mainly including nuclear magnetic resonance (NMR) and high-resolution electrospray ionization mass spectrometry (HRESIMS) data, <sup>13</sup>C NMR calculations with DP4+ probability analyses, electronic circular dichroism (ECD) calculations, and single-crystal X-ray diffraction experiments. <b>Results:</b> Furthermore, compound <b>11</b> exhibited potent immunosuppressive activity with IC<sub>50</sub> values of 8.99 ± 1.08 μM in a lipopolysaccharide (LPS) model and 5.39 ± 0.20 μM in a concanavalin A (ConA) model.https://www.mdpi.com/1424-8247/18/5/737<i>Eutypella</i> sp.immunosuppressive activitysecondary metabolitessesquiterpenes
spellingShingle Nina Wang
Chunmei Chen
Qin Li
Qiqiang Liang
Yingjie Liu
Zongze Shao
Xiupian Liu
Qun Zhou
Isolation of Ten New Sesquiterpenes and New Abietane-Type Diterpenoid with Immunosuppressive Activity from Marine Fungus <i>Eutypella</i> sp.
Pharmaceuticals
<i>Eutypella</i> sp.
immunosuppressive activity
secondary metabolites
sesquiterpenes
title Isolation of Ten New Sesquiterpenes and New Abietane-Type Diterpenoid with Immunosuppressive Activity from Marine Fungus <i>Eutypella</i> sp.
title_full Isolation of Ten New Sesquiterpenes and New Abietane-Type Diterpenoid with Immunosuppressive Activity from Marine Fungus <i>Eutypella</i> sp.
title_fullStr Isolation of Ten New Sesquiterpenes and New Abietane-Type Diterpenoid with Immunosuppressive Activity from Marine Fungus <i>Eutypella</i> sp.
title_full_unstemmed Isolation of Ten New Sesquiterpenes and New Abietane-Type Diterpenoid with Immunosuppressive Activity from Marine Fungus <i>Eutypella</i> sp.
title_short Isolation of Ten New Sesquiterpenes and New Abietane-Type Diterpenoid with Immunosuppressive Activity from Marine Fungus <i>Eutypella</i> sp.
title_sort isolation of ten new sesquiterpenes and new abietane type diterpenoid with immunosuppressive activity from marine fungus i eutypella i sp
topic <i>Eutypella</i> sp.
immunosuppressive activity
secondary metabolites
sesquiterpenes
url https://www.mdpi.com/1424-8247/18/5/737
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