Flavonoid compound from Forsythia suspensa leaves inhibits adenovirus infection related to cell cycle based on UHPLC-Q-Exactive-Orbitrap/MS and experimental validation

IntroductionForsythia suspensa leaves (FSL), a traditional Chinese ethnomedicinal herbal material used to prepare health-promoting infusions and pharmacologically noted for their robust anti-inflammatory, antioxidant, and broad-spectrum antiviral activities, nevertheless have an as-yet-uncharacteriz...

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Main Authors: Lingling Wang, Shuanshan Ren, Xingming Ma, Yanliu Li, Yongyong Zheng, Ling Li, Luhong Cao
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-08-01
Series:Frontiers in Cellular and Infection Microbiology
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Online Access:https://www.frontiersin.org/articles/10.3389/fcimb.2025.1627863/full
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author Lingling Wang
Shuanshan Ren
Xingming Ma
Yanliu Li
Yongyong Zheng
Ling Li
Luhong Cao
author_facet Lingling Wang
Shuanshan Ren
Xingming Ma
Yanliu Li
Yongyong Zheng
Ling Li
Luhong Cao
author_sort Lingling Wang
collection DOAJ
description IntroductionForsythia suspensa leaves (FSL), a traditional Chinese ethnomedicinal herbal material used to prepare health-promoting infusions and pharmacologically noted for their robust anti-inflammatory, antioxidant, and broad-spectrum antiviral activities, nevertheless have an as-yet-uncharacterized molecular mechanism of action against human adenovirus (HAdV).MethodsUltra-high-performance liquid chromatography coupled with Q-Exactive Orbitrap mass spectrometry (UHPLC-Q-Exactive-Orbitrap/MS) was employed to identification of FSL components. Publicly available GEO datasets were mined to identify HAdV-associated differentially expressed genes (DEGs). An integrated analysis of GEO datasets and network pharmacology to predict the key molecular targets of FSL flavonoids against HAdV. Ensemble molecular docking and molecular dynamics simulations assessed the stability of flavonoid–protein interactions. In vitro antiviral assays quantified FSL’s effect on HAdV replication, viral gene expression, and E1A protein levels. Flow cytometry and RT-qPCR examined cell cycle distribution and expression of cell-cycle regulators.ResultsThirty-nine active components were identified in FSL, predominantly organic acids, terpenoids, flavonoids, and lignans. An integrated analysis of GEO data revealed 990 adenovirus-associated DEGs, with network pharmacology and functional enrichment analyses further demonstrating FSL flavonoids’ preferential targeting of cell cycle regulators. In silico docking and simulation confirmed the stable binding of FSL-derived flavonoids to core cell cycle proteins. In vitro, FSL inhibited HAdV replication in a dose-dependent manner, significantly reducing viral gene transcripts and E1A protein expression. Mechanistic studies demonstrated that FSL induced G2/M phase arrest, accompanied by the downregulation of CDC25A expression and upregulation of CCNB2, AURKA, CHEK1, and CCNA2 expression, thereby blocking progression into S-phase and impairing viral DNA synthesis.DiscussionThese findings establish a pharmacological foundation for developing FSL-derived phytotherapeutics against adenoviral infections.
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spelling doaj-art-7c6b918e2ddf4a7ca8ee654848fb25d52025-08-21T05:27:28ZengFrontiers Media S.A.Frontiers in Cellular and Infection Microbiology2235-29882025-08-011510.3389/fcimb.2025.16278631627863Flavonoid compound from Forsythia suspensa leaves inhibits adenovirus infection related to cell cycle based on UHPLC-Q-Exactive-Orbitrap/MS and experimental validationLingling Wang0Shuanshan Ren1Xingming Ma2Yanliu Li3Yongyong Zheng4Ling Li5Luhong Cao6School of Comprehensive Health Management, Xihua University, Chengdu, ChinaSchool of Comprehensive Health Management, Xihua University, Chengdu, ChinaSchool of Comprehensive Health Management, Xihua University, Chengdu, ChinaSchool of Comprehensive Health Management, Xihua University, Chengdu, ChinaSchool of Comprehensive Health Management, Xihua University, Chengdu, ChinaSchool of Comprehensive Health Management, Xihua University, Chengdu, ChinaDepartment of Otolaryngology Head and Neck Surgery, Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, ChinaIntroductionForsythia suspensa leaves (FSL), a traditional Chinese ethnomedicinal herbal material used to prepare health-promoting infusions and pharmacologically noted for their robust anti-inflammatory, antioxidant, and broad-spectrum antiviral activities, nevertheless have an as-yet-uncharacterized molecular mechanism of action against human adenovirus (HAdV).MethodsUltra-high-performance liquid chromatography coupled with Q-Exactive Orbitrap mass spectrometry (UHPLC-Q-Exactive-Orbitrap/MS) was employed to identification of FSL components. Publicly available GEO datasets were mined to identify HAdV-associated differentially expressed genes (DEGs). An integrated analysis of GEO datasets and network pharmacology to predict the key molecular targets of FSL flavonoids against HAdV. Ensemble molecular docking and molecular dynamics simulations assessed the stability of flavonoid–protein interactions. In vitro antiviral assays quantified FSL’s effect on HAdV replication, viral gene expression, and E1A protein levels. Flow cytometry and RT-qPCR examined cell cycle distribution and expression of cell-cycle regulators.ResultsThirty-nine active components were identified in FSL, predominantly organic acids, terpenoids, flavonoids, and lignans. An integrated analysis of GEO data revealed 990 adenovirus-associated DEGs, with network pharmacology and functional enrichment analyses further demonstrating FSL flavonoids’ preferential targeting of cell cycle regulators. In silico docking and simulation confirmed the stable binding of FSL-derived flavonoids to core cell cycle proteins. In vitro, FSL inhibited HAdV replication in a dose-dependent manner, significantly reducing viral gene transcripts and E1A protein expression. Mechanistic studies demonstrated that FSL induced G2/M phase arrest, accompanied by the downregulation of CDC25A expression and upregulation of CCNB2, AURKA, CHEK1, and CCNA2 expression, thereby blocking progression into S-phase and impairing viral DNA synthesis.DiscussionThese findings establish a pharmacological foundation for developing FSL-derived phytotherapeutics against adenoviral infections.https://www.frontiersin.org/articles/10.3389/fcimb.2025.1627863/fullUHPLC-Q-Exactive-Orbitrap/MSForsythia suspensa leavesadenovirusflavonoidscell cycle
spellingShingle Lingling Wang
Shuanshan Ren
Xingming Ma
Yanliu Li
Yongyong Zheng
Ling Li
Luhong Cao
Flavonoid compound from Forsythia suspensa leaves inhibits adenovirus infection related to cell cycle based on UHPLC-Q-Exactive-Orbitrap/MS and experimental validation
Frontiers in Cellular and Infection Microbiology
UHPLC-Q-Exactive-Orbitrap/MS
Forsythia suspensa leaves
adenovirus
flavonoids
cell cycle
title Flavonoid compound from Forsythia suspensa leaves inhibits adenovirus infection related to cell cycle based on UHPLC-Q-Exactive-Orbitrap/MS and experimental validation
title_full Flavonoid compound from Forsythia suspensa leaves inhibits adenovirus infection related to cell cycle based on UHPLC-Q-Exactive-Orbitrap/MS and experimental validation
title_fullStr Flavonoid compound from Forsythia suspensa leaves inhibits adenovirus infection related to cell cycle based on UHPLC-Q-Exactive-Orbitrap/MS and experimental validation
title_full_unstemmed Flavonoid compound from Forsythia suspensa leaves inhibits adenovirus infection related to cell cycle based on UHPLC-Q-Exactive-Orbitrap/MS and experimental validation
title_short Flavonoid compound from Forsythia suspensa leaves inhibits adenovirus infection related to cell cycle based on UHPLC-Q-Exactive-Orbitrap/MS and experimental validation
title_sort flavonoid compound from forsythia suspensa leaves inhibits adenovirus infection related to cell cycle based on uhplc q exactive orbitrap ms and experimental validation
topic UHPLC-Q-Exactive-Orbitrap/MS
Forsythia suspensa leaves
adenovirus
flavonoids
cell cycle
url https://www.frontiersin.org/articles/10.3389/fcimb.2025.1627863/full
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