整合生物学期刊网

应用天然产物 ›› 2024, Vol. 14 ›› Issue (2): 5-5.DOI: 10.1007/s13659-024-00438-y

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Libertellenone C attenuates oxidative stress and neuroinflammation with the capacity of NLRP3 inhibition

Jie Cao1, Lanqin Li2, Runge Zhang2, Zhou Shu1, Yaxin Zhang2, Weiguang Sun2, Yonghui Zhang2, Zhengxi Hu2   

  1. 1. Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China;
    2. Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
  • 收稿日期:2023-12-07 出版日期:2024-04-24 发布日期:2024-05-16
  • 通讯作者: Weiguang Sun,E-mail:weiguang_sun@hust.edu.cn;Yonghui Zhang,E-mail:zhangyh@mails.tjmu.edu.cn;Zhengxi Hu,E-mail:huzhengxi@hust.edu.cn
  • 基金资助:
    This research was financially supported by the National Program for Support of Top-notch Young Professionals (No. 0106514050), the National Natural Science Foundation of China (Nos. 82173705, 82273811, and U22A20380), the National Key R&D Program of China (No. 2021YFA0910500), the National Natural Science Foundation for Excellent Young Scholars (No. 81922065); the Science and Technology Major Project of Hubei Province (No. 2021ACA012); the Research and Development Program of Hubei Province (No. 2020BCA058).

Libertellenone C attenuates oxidative stress and neuroinflammation with the capacity of NLRP3 inhibition

Jie Cao1, Lanqin Li2, Runge Zhang2, Zhou Shu1, Yaxin Zhang2, Weiguang Sun2, Yonghui Zhang2, Zhengxi Hu2   

  1. 1. Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China;
    2. Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
  • Received:2023-12-07 Online:2024-04-24 Published:2024-05-16
  • Contact: Weiguang Sun,E-mail:weiguang_sun@hust.edu.cn;Yonghui Zhang,E-mail:zhangyh@mails.tjmu.edu.cn;Zhengxi Hu,E-mail:huzhengxi@hust.edu.cn
  • Supported by:
    This research was financially supported by the National Program for Support of Top-notch Young Professionals (No. 0106514050), the National Natural Science Foundation of China (Nos. 82173705, 82273811, and U22A20380), the National Key R&D Program of China (No. 2021YFA0910500), the National Natural Science Foundation for Excellent Young Scholars (No. 81922065); the Science and Technology Major Project of Hubei Province (No. 2021ACA012); the Research and Development Program of Hubei Province (No. 2020BCA058).

摘要: Neurodegenerative diseases (NDs) are common chronic diseases arising from progressive damage to the nervous system. Here, in-house natural product database screening revealed that libertellenone C (LC) obtained from the fermentation products of Arthrinium arundinis separated from the gut of a centipede collected in our Tongji campus, showed a remarkable neuroprotective effect. Further investigation was conducted to clarify the specific mechanism. LC dose-dependently reversed glutamate-induced decreased viability, accumulated reactive oxygen species, mitochondrial membrane potential loss, and apoptosis in SH-SY5Y cells. Network pharmacology analysis predicted that the targets of LC were most likely directly related to oxidative stress and the regulation of inflammatory factor-associated signaling pathways. Further study demonstrated that LC attenuated nitrite, TNF-α, and IL-1β production and decreased inducible nitric oxide synthase and cyclooxygenase expression in lipopolysaccharide-induced BV-2 cells. LC could directly inhibit NLRP3 inflammasome activation by decreasing the expression levels of NLRP3, ASC, cleaved Caspase-1, and NF-κB p65. Our results provide a new understanding of how LC inhibits the NLRP3 inflammasome in microglia, providing neuroprotection. These findings might guide the development of effective LC-based therapeutic strategies for NDs.

关键词: Neurodegenerative diseases, Narural products, Libertellenone C, NLRP3 inflammasome

Abstract: Neurodegenerative diseases (NDs) are common chronic diseases arising from progressive damage to the nervous system. Here, in-house natural product database screening revealed that libertellenone C (LC) obtained from the fermentation products of Arthrinium arundinis separated from the gut of a centipede collected in our Tongji campus, showed a remarkable neuroprotective effect. Further investigation was conducted to clarify the specific mechanism. LC dose-dependently reversed glutamate-induced decreased viability, accumulated reactive oxygen species, mitochondrial membrane potential loss, and apoptosis in SH-SY5Y cells. Network pharmacology analysis predicted that the targets of LC were most likely directly related to oxidative stress and the regulation of inflammatory factor-associated signaling pathways. Further study demonstrated that LC attenuated nitrite, TNF-α, and IL-1β production and decreased inducible nitric oxide synthase and cyclooxygenase expression in lipopolysaccharide-induced BV-2 cells. LC could directly inhibit NLRP3 inflammasome activation by decreasing the expression levels of NLRP3, ASC, cleaved Caspase-1, and NF-κB p65. Our results provide a new understanding of how LC inhibits the NLRP3 inflammasome in microglia, providing neuroprotection. These findings might guide the development of effective LC-based therapeutic strategies for NDs.

Key words: Neurodegenerative diseases, Narural products, Libertellenone C, NLRP3 inflammasome