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  1. Article ; Online: Endolichenic Fungi: A Promising Medicinal Microbial Resource to Discover Bioactive Natural Molecules-An Update.

    Zhang, Wenge / Ran, Qian / Li, Hehe / Lou, Hongxiang

    Journal of fungi (Basel, Switzerland)

    2024  Volume 10, Issue 2

    Abstract: Lichens are some of the most unique fungi and are naturally encountered as symbiotic biological organisms that usually consist of fungal partners (mycobionts) and photosynthetic organisms (green algae and cyanobacteria). Due to their distinctive growth ... ...

    Abstract Lichens are some of the most unique fungi and are naturally encountered as symbiotic biological organisms that usually consist of fungal partners (mycobionts) and photosynthetic organisms (green algae and cyanobacteria). Due to their distinctive growth environments, including hot deserts, rocky coasts, Arctic tundra, toxic slag piles, etc., they produce a variety of biologically meaningful and structurally novel secondary metabolites to resist external environmental stresses. The endofungi that live in and coevolve with lichens can also generate abundant secondary metabolites with novel structures, diverse skeletons, and intriguing bioactivities due to their mutualistic symbiosis with hosts, and they have been considered as strategically significant medicinal microresources for the discovery of pharmaceutical lead compounds in the medicinal industry. They are also of great importance in the fundamental research field of natural product chemistry. In this work, we conducted a comprehensive review and systematic evaluation of the secondary metabolites of endolichenic fungi regarding their origin, distribution, structural characteristics, and biological activity, as well as recent advances in their medicinal applications, by summarizing research achievements since 2015. Moreover, the current research status and future research trends regarding their chemical components are discussed and predicted. A systematic review covering the fundamental chemical research advances and pharmaceutical potential of the secondary metabolites from endolichenic fungi is urgently required to facilitate our better understanding, and this review could also serve as a critical reference to provide valuable insights for the future research and promotion of natural products from endolichenic fungi.
    Language English
    Publishing date 2024-01-25
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2784229-0
    ISSN 2309-608X ; 2309-608X
    ISSN (online) 2309-608X
    ISSN 2309-608X
    DOI 10.3390/jof10020099
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: The emergence of natural products as potential therapeutics for male infertility.

    Li, Xiuyun / Zhang, Bin / Yang, Huijun / Zhang, Liuping / Lou, Hongxiang / Zheng, Shicun

    Andrology

    2024  

    Abstract: Infertility is a major reproductive health problem. Approximately 50% of all documented cases of infertility are attributable to male factors, such as poor testicular function and semen quality. The recent significant global decline in sperm counts has ... ...

    Abstract Infertility is a major reproductive health problem. Approximately 50% of all documented cases of infertility are attributable to male factors, such as poor testicular function and semen quality. The recent significant global decline in sperm counts has serious implications for male fertility, but the armamentarium for improving testicular function and semen quality is limited. Natural products have a wide range of activities and are a major source of drugs for disease prevention and treatment. To provide ideas and a theoretical basis for the research and development of therapeutic drugs for male infertility, this review summarizes natural products (mostly monomers) that have been shown to improve testicular function and semen quality and their possible mechanisms of action. These natural products primarily improve testicular function and semen quality via antioxidant, antiapoptotic, and anti-inflammatory effects, in addition to increasing serum testosterone and reducing DNA damage in spermatozoa and testicular cells. Prospects for the application of natural products in the treatment of male infertility are discussed.
    Language English
    Publishing date 2024-01-08
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2696108-8
    ISSN 2047-2927 ; 2047-2919
    ISSN (online) 2047-2927
    ISSN 2047-2919
    DOI 10.1111/andr.13588
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Selective Antitumor Effect and Lower Toxicity of Mitochondrion-Targeting Derivatization of Triptolide.

    Xing, Wenlan / Liu, Guoliang / Zhang, Yue / Zhang, Tao / Lou, Hongxiang / Fan, Peihong

    Journal of medicinal chemistry

    2024  Volume 67, Issue 2, Page(s) 1093–1114

    Abstract: Triptolide has a significant antitumor activity, but its toxicity limits its clinical application. As the mitochondrion-targeting strategy showed an advantage in selective antitumor effect based on the higher mitochondrial membrane potential (MMP) in ... ...

    Abstract Triptolide has a significant antitumor activity, but its toxicity limits its clinical application. As the mitochondrion-targeting strategy showed an advantage in selective antitumor effect based on the higher mitochondrial membrane potential (MMP) in tumor cells than normal cells, the lipophilic cations triphenylphosphonium and
    MeSH term(s) Animals ; Zebrafish ; Mitochondria ; Apoptosis ; Diterpenes/toxicity ; Diterpenes/chemistry ; Phenanthrenes/toxicity ; Phenanthrenes/chemistry ; Cell Line, Tumor ; Epoxy Compounds ; Organophosphorus Compounds
    Chemical Substances triptolide (19ALD1S53J) ; triphenylphosphonium ; Diterpenes ; Phenanthrenes ; Epoxy Compounds ; Organophosphorus Compounds
    Language English
    Publishing date 2024-01-03
    Publishing country United States
    Document type Journal Article
    ZDB-ID 218133-2
    ISSN 1520-4804 ; 0022-2623
    ISSN (online) 1520-4804
    ISSN 0022-2623
    DOI 10.1021/acs.jmedchem.3c01508
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Erg6 Acts as a Downstream Effector of the Transcription Factor Flo8 To Regulate Biofilm Formation in Candida albicans.

    Jin, Xueyang / Luan, Xiaoyi / Xie, Fei / Chang, Wenqiang / Lou, Hongxiang

    Microbiology spectrum

    2023  Volume 11, Issue 3, Page(s) e0039323

    Abstract: The yeast-to-hyphal morphotype transition and subsequent biofilm formation are important virulence factors of Candida albicans and are closely associated with ergosterol biosynthesis. Flo8 is an important transcription factor that determines filamentous ... ...

    Abstract The yeast-to-hyphal morphotype transition and subsequent biofilm formation are important virulence factors of Candida albicans and are closely associated with ergosterol biosynthesis. Flo8 is an important transcription factor that determines filamentous growth and biofilm formation in C. albicans. However, the relationship between Flo8 and regulation of the ergosterol biosynthesis pathway remains elusive. Here, we analyzed the sterol composition of a
    MeSH term(s) Candida albicans ; Transcription Factors/genetics ; Transcription Factors/metabolism ; Fungal Proteins/metabolism ; Hyphae ; Virulence Factors/metabolism ; Antifungal Agents/metabolism ; Biofilms ; Ergosterol
    Chemical Substances Transcription Factors ; Fungal Proteins ; Virulence Factors ; Antifungal Agents ; Ergosterol (Z30RAY509F)
    Language English
    Publishing date 2023-04-26
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2807133-5
    ISSN 2165-0497 ; 2165-0497
    ISSN (online) 2165-0497
    ISSN 2165-0497
    DOI 10.1128/spectrum.00393-23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: A new anthraquinone derivative from the marine fish-derived fungus

    Xu, Xiaoyuan / Li, Gang / Fu, Rao / Lou, Hongxiang / Peng, Xiaoping

    Natural product research

    2023  , Page(s) 1–6

    Abstract: A new anthraquinone, altermodinacid A ( ...

    Abstract A new anthraquinone, altermodinacid A (
    Language English
    Publishing date 2023-09-21
    Publishing country England
    Document type Journal Article
    ZDB-ID 2185747-7
    ISSN 1478-6427 ; 1478-6419
    ISSN (online) 1478-6427
    ISSN 1478-6419
    DOI 10.1080/14786419.2023.2258540
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Isolation, Biosynthesis, and Biological Activity of Polycyclic Xanthones From Actinomycetes.

    Yu, Hui-Qing / Li, Gang / Lou, Hong-Xiang

    Frontiers in microbiology

    2022  Volume 13, Page(s) 922089

    Abstract: Natural products from actinomycetes serve as a crucial source of clinical pharmaceuticals, especially antibiotics and anticancer agents. Among them, polycyclic xanthones belong to a growing group of highly oxygenated aromatic polyketides with a xanthone- ... ...

    Abstract Natural products from actinomycetes serve as a crucial source of clinical pharmaceuticals, especially antibiotics and anticancer agents. Among them, polycyclic xanthones belong to a growing group of highly oxygenated aromatic polyketides with a xanthone-containing angular hexacyclic framework. These biosynthetically unique small molecules are of great interest due to their wide spectrum of biological activities, especially the remarkable antibacterial activity against gram-positive bacteria and the significant antineoplastic effects toward various cancer cells at nanomolar concentrations. Their complex structures and significant bioactivities have aroused considerable attention in the chemical and biological communities in recent decades. This review covers the isolation, the biosynthesis, and the biological studies toward these structurally complex and biologically active molecules.
    Language English
    Publishing date 2022-07-13
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2587354-4
    ISSN 1664-302X
    ISSN 1664-302X
    DOI 10.3389/fmicb.2022.922089
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Chromatographic and mass spectrometric technologies for chemical analysis of Euodiae fructus: A review

    Xia, Hongmin / Dai, Yanpeng / Zhao, Chengxin / Zhang, Huimin / Shi, Yusheng / Lou, Hongxiang

    Phytochemical Analysis. 2023 Jan., v. 34, no. 1 p.5-29

    2023  

    Abstract: INTRODUCTION: Euodiae fructus, also known as Evodiae fructus, is a popular Chinese herbal medicine derived from the dried, nearly ripe fruits of Tetradium ruticarpum (A. Juss.) T. G. Hartley. The main bioactive constituents of Euodiae fructus are ... ...

    Abstract INTRODUCTION: Euodiae fructus, also known as Evodiae fructus, is a popular Chinese herbal medicine derived from the dried, nearly ripe fruits of Tetradium ruticarpum (A. Juss.) T. G. Hartley. The main bioactive constituents of Euodiae fructus are alkaloids, limonoids, flavonoids, and anthraquinones. The contents of these compounds vary greatly between different plant species, geographic locations, and harvest times, which thus affect the therapeutic effects. OBJECTIVES: We aimed to summarize the chromatographic and mass spectrometric technologies applied for chemical analysis and quality evaluation of Euodiae fructus. Moreover, we aimed to emphasize the diverse soft ionization techniques and mass analyzers of LC‐MS methods for assessment of Euodiae fructus. METHODOLOGY: A literature study was carried out by retrieving articles published between January 1988 and December 2021 from well‐known databases, including PubMed, ASC, Elsevier, ScienceDirect, J·STAGE, Thieme, Taylor & Francis, Springer Link, Wiley Online Library, and CNKI. The chemical analysis methods were described in several categories in accordance with the used analytical techniques, including thin‐layer chromatography (TLC), high‐performance liquid chromatography (HPLC), high‐performance liquid chromatography–mass spectrometry (HPLC‐MS), gas chromatography–mass spectrometry (GC‐MS), capillary electrophoresis (CE), and counter‐current chromatography (CCC). RESULTS: This review systematically summarizes the achievements in chemical analysis and quality evaluation of Euodiae fructus published in over three decades, covering the various chromatographic and mass spectrometric technologies applied for identification and quantification of phytochemical constituents. CONCLUSION: The summary serves as an important basis for future phytochemical research and implementation of quality control methods in order to ensure the efficacy and safety of Euodiae fructus.
    Keywords Tetradium ruticarpum ; anthraquinones ; capillary electrophoresis ; chemical analysis ; countercurrent chromatography ; flavonoids ; gas chromatography-mass spectrometry ; herbal medicines ; high performance liquid chromatography ; ionization ; limonoids ; quality control ; therapeutics ; thin layer chromatography
    Language English
    Dates of publication 2023-01
    Size p. 5-29.
    Publishing place John Wiley & Sons, Ltd
    Document type Article ; Online
    Note REVIEW
    ZDB-ID 1073576-8
    ISSN 1099-1565 ; 0958-0344
    ISSN (online) 1099-1565
    ISSN 0958-0344
    DOI 10.1002/pca.3187
    Database NAL-Catalogue (AGRICOLA)

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  8. Article ; Online: Metabolic profiling for the discovery of two rare fusidane-type heterodimers from the fungal endophyte Acremonium pilosum F47.

    Lin, Ping / Tian, Chuan / Peng, Xiao-Ping / Lou, Hong-Xiang / Li, Gang

    Steroids

    2023  Volume 192, Page(s) 109188

    Abstract: In our process of studying fusidane-type antibiotics, metabolomics-guided chemical investigation on the endophytic Acremonium pilosum F47 led to the isolation of two unique heterodimers, acremonidiols B and C (1 and 2) consisting of a fusidane-type ... ...

    Abstract In our process of studying fusidane-type antibiotics, metabolomics-guided chemical investigation on the endophytic Acremonium pilosum F47 led to the isolation of two unique heterodimers, acremonidiols B and C (1 and 2) consisting of a fusidane-type triterpenoid motif and a steroid unit. Four biosynthetically related known natural products including fusidic acid (FA, 3), as well as ergosterol derivatives (4-6) were also obtained. Their structures were determined by the analyses of ESI-HRMS and NMR data. Compounds 1 and 2, as hybrid molecules comprising the fusidane triterpenoid and steroid, are rare in nature. Compared with the clinically used antibiotic FA (3), new compounds 1 and 2 showed no obvious antibiotic activity, indicating the importance of free C-21 carboxyl group for antibacterial activity.
    MeSH term(s) Endophytes/chemistry ; Fusidic Acid/chemistry ; Anti-Bacterial Agents/pharmacology ; Anti-Bacterial Agents/chemistry ; Triterpenes
    Chemical Substances Fusidic Acid (59XE10C19C) ; Anti-Bacterial Agents ; Triterpenes
    Language English
    Publishing date 2023-02-02
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 80312-1
    ISSN 1878-5867 ; 0039-128X
    ISSN (online) 1878-5867
    ISSN 0039-128X
    DOI 10.1016/j.steroids.2023.109188
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Synthesis of 3-

    Li, Changhao / He, Qiaobian / Xu, Yuwen / Lou, Hongxiang / Fan, Peihong

    ACS omega

    2022  Volume 7, Issue 11, Page(s) 9853–9866

    Abstract: In this study, we synthesized a series of amide and mitochondria-targeted derivatives with 3- ...

    Abstract In this study, we synthesized a series of amide and mitochondria-targeted derivatives with 3-
    Language English
    Publishing date 2022-03-07
    Publishing country United States
    Document type Journal Article
    ISSN 2470-1343
    ISSN (online) 2470-1343
    DOI 10.1021/acsomega.2c00203
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Synergy and Mechanism of Leflunomide Plus Fluconazole Against Resistant

    Li, Xiuyun / Zhang, Ning / Zhang, Liuping / Liu, Chang / Zheng, Shicun / Lou, Hongxiang

    Infection and drug resistance

    2023  Volume 16, Page(s) 4147–4158

    Abstract: Objective: The global rise in the resistance of : Methods: In this study, the microdilution method was used to determine the antifungal effects of leflunomide in combination with three triazoles on planktonic cells in vitro. The morphological ... ...

    Abstract Objective: The global rise in the resistance of
    Methods: In this study, the microdilution method was used to determine the antifungal effects of leflunomide in combination with three triazoles on planktonic cells in vitro. The morphological transition from yeast to hyphae was observed under a microscope. The effects on ROS, metacaspase, efflux pumps, and intracellular calcium concentration were investigated, respectively.
    Results: Our findings suggested that leflunomide + triazoles showed a synergistic effect against resistant
    Discussion: Leflunomide appears to be a potential enhancer of current antifungal agents for treating candidiasis caused by resistant
    Language English
    Publishing date 2023-06-27
    Publishing country New Zealand
    Document type Journal Article
    ZDB-ID 2494856-1
    ISSN 1178-6973
    ISSN 1178-6973
    DOI 10.2147/IDR.S415229
    Database MEDical Literature Analysis and Retrieval System OnLINE

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