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Admane N, Kothandan R, Biswas S. Amyloid transformations of phenol soluble modulin α1 in Staphylococcus aureus and their modulation deploying a prenylated chalcone. Sci Rep 2024; 14:18587. [PMID: 39127763 PMCID: PMC11316821 DOI: 10.1038/s41598-024-69344-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Accepted: 08/03/2024] [Indexed: 08/12/2024] Open
Abstract
Phenol soluble modulins (PSMs) are small amphipathic peptides involved in a series of biological functions governing staphylococcal pathogenesis, primarily by facilitating the formation of an extracellular fibril structure with amyloid-like properties. This fibrillar architecture stabilizes the staphylococcal biofilm making it resilient to antibiotic treatment. Our study aims to abrogate the amyloid fibrillation of PSM α1 with novel insights on the amyloid modulatory potential of a prenylated chalcone, Isobavachalcone (IBC). A combination of biophysical and computational assays to address the amyloid modulatory effect of IBC has been undertaken to arrive at a model for the inhibition of PSM α1 fibrillation. ThT kinetics studies indicated that IBC must be stably interacting with the amyloidogenic core of PSM α1 monomers or it may be inhibiting the pre-fibrillar aggregates populated at the early stages of amyloid transformation kinetics. This heteromolecular association further inhibits the amyloid transformation corroborated by a ∼ 94% and ∼ 91% reduction in the ThT maxima, even at sub-stoichiometric concentrations. Transmission electron microscopy (TEM) of end-stage aggregates (∼ 55 h) depict mature, inter-twined, laterally stacked amyloid fibrils in untreated PSM α1 samples while this fibrillar load is remarkably reduced in the presence of IBC. The inhibitory effect of IBC on the β-sheet transitions of PSM α1 were also validated using far-UV CD spectra. Molecular dynamics simulation studies with PSM aggregates (PSM-A) have also suggested that IBC disrupts the hydrogen bonding interactions and corroborates the inhibition of alpha to beta transitions of PSM-A. Collectively, our data proposes a novel structural motif for the rational discovery of non-toxic therapeutic agents targeting the functional amyloids which have slowly emerged as potent factors, consolidating the antibiotic resistant staphylococcal biofilm assembly.
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Affiliation(s)
- Nikita Admane
- ViStA Laboratory, Department of Biological Sciences, BITS, Pilani - KK Birla Goa Campus, Goa, 403726, India
| | - Ram Kothandan
- Bioinformatics Laboratory, Department of Biotechnology, Kumaraguru College of Technology, Coimbatore, India
| | - Sumit Biswas
- ViStA Laboratory, Department of Biological Sciences, BITS, Pilani - KK Birla Goa Campus, Goa, 403726, India.
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Cao D, Zhang Z, Jiang X, Wu T, Xiang Y, Ji Z, Guo J, Zhang X, Xu K, Liu Z, Zhang Y. Psoralea corylifolia L. and its active component isobavachalcone demonstrate antibacterial activity against Mycobacterium abscessus. JOURNAL OF ETHNOPHARMACOLOGY 2024; 329:118142. [PMID: 38583730 DOI: 10.1016/j.jep.2024.118142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/19/2024] [Accepted: 03/31/2024] [Indexed: 04/09/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Psoralea corylifolia L. (Fabaceae) is a traditional medicinal herb used to treat various diseases, including kidney disease, asthma, psoriasis and vitiligo. AIM OF THE STUDY To explore the antibacterial activity of Psoralea corylifolia L. and its bioactive components against Mycobacterium abscessus (M. abscessus). MATERIALS AND METHODS Ultra high performance liquid chromatography was utilized to analyze the bioactive fractions and compounds present in 30%, 60%, and 90% ethanol extracts of Psoralea corylifolia L.. The antibacterial effects of Psoralea corylifolia L. and potential active ingredients were determined by minimum inhibitory concentration (MIC). The bactericidal activity of the active ingredient isobavachalcone was evaluated and then scanning electron microscopy was used to explore the bactericidal mechanism of isobavachalcone. RESULTS The 90% ethanol extracts of Psoralea corylifolia L. showed significant antibacterial activity against M. abscessus, with an MIC of 156 μg/mL. Isobavachalcone was identified as the bioactive ingredient, and testing of 118 clinical isolates of M. abscessus indicated their MICs ranged from 2 to 16 μg/mL, with an average MIC of 8 μg/mL. Furthermore, the minimum bactericidal concentration/MIC ratio and the time-kill test indicated rapid bactericidal activity of isobavachalcone against M. abscessus. Finally, we found that the bactericidal mechanism of isobavachalcone involved damage to the bacterial cell membrane, causing wrinkled and sunken cell surface and a noticeable reduction in bacterial length. CONCLUSION Psoralea corylifolia L. ethanol extracts as well as its active component isobavachalcone show promising antimicrobial activity against M. abscessus.
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Affiliation(s)
- Dan Cao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zunjing Zhang
- Lishui Traditional Chinese Medicine Hospital affiliated to the Zhejiang Chinese Medical University, Lishui, 323020, Zhejiang, China
| | - Xiuzhi Jiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Tiantian Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yanghui Xiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhongkang Ji
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jing Guo
- Lishui Traditional Chinese Medicine Hospital affiliated to the Zhejiang Chinese Medical University, Lishui, 323020, Zhejiang, China
| | - Xiaoqin Zhang
- Lishui Traditional Chinese Medicine Hospital affiliated to the Zhejiang Chinese Medical University, Lishui, 323020, Zhejiang, China
| | - Kaijin Xu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhongda Liu
- Lishui Traditional Chinese Medicine Hospital affiliated to the Zhejiang Chinese Medical University, Lishui, 323020, Zhejiang, China.
| | - Ying Zhang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Jinan Microecological Biomedicine Shandong Laboratory, Jinan, 250117, China.
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3
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Fan Y, Yin L, Zhong X, He Z, Meng X, Chai F, Kong M, Zhang Q, Xia C, Tong Y, Bi Q. An integrated network pharmacology, molecular docking and experiment validation study to investigate the potential mechanism of Isobavachalcone in the treatment of osteoarthritis. JOURNAL OF ETHNOPHARMACOLOGY 2024; 326:117827. [PMID: 38310989 DOI: 10.1016/j.jep.2024.117827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 02/06/2024]
Abstract
BACKGROUND In many different plants, including Dorstenia and Psoralea corylifolia L., Isobavachalcone (IBC) is a naturally occurring flavonoid chemical having a range of biological actions, including anti-inflammatory, immunomodulatory, and anti-bacterial. The "Theory of Medicinal Properties" of the Tang Dynasty states that Psoralea corylifolia L. has the ability to alleviate discomfort in the knees and waist. One of the most widespread chronic illnesses, osteoarthritis (OA), is characterized by stiffness and discomfort in the joints. However, there hasn't been much research done on the effectiveness and underlying processes of IBC in the treatment of osteoarthritis. AIM OF THE STUDY To investigate the potential efficacy and mechanism of IBC in treating osteoarthritis, we adopted an integrated strategy of network pharmacology, molecular docking and experiment assessment. MATERIALS AND METHODS The purpose of this research was to determine the impact of IBC on OA and the underlying mechanisms. IBC and OA possible targets and processes were predicted using network pharmacology, including the relationship between IBC and OA intersection targets, Cytoscape protein-protein interaction (PPI) to obtain key potential targets, and GO and KEGG pathway enrichment analysis to reveal the probable mechanism of IBC on OA. Following that, in vitro tests were carried out to confirm the expected underlying processes. Finally, in vivo tests clarified IBC's therapeutic efficacy on OA. RESULTS We anticipated and validated that the impact of IBC on osteoarthritis is mostly controlled by the PI3K-AKT-NF-κB signaling pathway by combining the findings of network pharmacology analysis, molecular docking and Experiment Validation. CONCLUSIONS This study reveals the IBC has potential to delay OA development.
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Affiliation(s)
- Yong Fan
- Department of Sports Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Postgraduate Training Base Alliance of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, China; Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Institute of Sports Medicine and Osteoarthropathy of Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China
| | - Li Yin
- Department of Sports Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Postgraduate Training Base Alliance of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, China; Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Institute of Sports Medicine and Osteoarthropathy of Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China
| | - Xugang Zhong
- Department of Sports Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Institute of Sports Medicine and Osteoarthropathy of Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China
| | - Zeju He
- Department of Sports Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Institute of Sports Medicine and Osteoarthropathy of Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China
| | - Xiang Meng
- Department of Sports Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Institute of Sports Medicine and Osteoarthropathy of Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China
| | - Fang Chai
- Department of Sports Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Institute of Sports Medicine and Osteoarthropathy of Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China
| | - Mingxiang Kong
- Department of Sports Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Institute of Sports Medicine and Osteoarthropathy of Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China
| | - Qiong Zhang
- Department of Nursing, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China
| | - Chen Xia
- Department of Sports Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Institute of Sports Medicine and Osteoarthropathy of Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China.
| | - Yu Tong
- Department of Sports Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Institute of Sports Medicine and Osteoarthropathy of Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China.
| | - Qing Bi
- Department of Sports Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Postgraduate Training Base Alliance of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, China; Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China; Institute of Sports Medicine and Osteoarthropathy of Hangzhou Medical College, Hangzhou, Zhejiang, 310000, China.
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Qian W, Lu J, Gao C, Liu Q, Li Y, Zeng Q, Zhang J, Wang T, Chen S. Deciphering antifungal and antibiofilm mechanisms of isobavachalcone against Cryptococcus neoformans through RNA-seq and functional analyses. Microb Cell Fact 2024; 23:107. [PMID: 38609931 PMCID: PMC11015616 DOI: 10.1186/s12934-024-02369-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 03/18/2024] [Indexed: 04/14/2024] Open
Abstract
Cryptococcus neoformans has been designated as critical fungal pathogens by the World Health Organization, mainly due to limited treatment options and the prevalence of antifungal resistance. Consequently, the utilization of novel antifungal agents is crucial for the effective treatment of C. neoformans infections. This study exposed that the minimum inhibitory concentration (MIC) of isobavachalcone (IBC) against C. neoformans H99 was 8 µg/mL, and IBC dispersed 48-h mature biofilms by affecting cell viability at 16 µg/mL. The antifungal efficacy of IBC was further validated through microscopic observations using specific dyes and in vitro assays, which confirmed the disruption of cell wall/membrane integrity. RNA-Seq analysis was employed to decipher the effect of IBC on the C. neoformans H99 transcriptomic profiles. Real-time quantitative reverse transcription PCR (RT-qPCR) analysis was performed to validate the transcriptomic data and identify the differentially expressed genes. The results showed that IBC exhibited various mechanisms to impede the growth, biofilm formation, and virulence of C. neoformans H99 by modulating multiple dysregulated pathways related to cell wall/membrane, drug resistance, apoptosis, and mitochondrial homeostasis. The transcriptomic findings were corroborated by the antioxidant analyses, antifungal drug sensitivity, molecular docking, capsule, and melanin assays. In vivo antifungal activity analysis demonstrated that IBC extended the lifespan of C. neoformans-infected Caenorhabditis elegans. Overall, the current study unveiled that IBC targeted multiple pathways simultaneously to inhibit growth significantly, biofilm formation, and virulence, as well as to disperse mature biofilms of C. neoformans H99 and induce cell death.
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Affiliation(s)
- Weidong Qian
- School of Biological and Pharmaceutical Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, P. R. China.
| | - Jiaxing Lu
- School of Biological and Pharmaceutical Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, P. R. China
| | - Chang Gao
- School of Biological and Pharmaceutical Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, P. R. China
| | - Qiming Liu
- School of Biological and Pharmaceutical Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, P. R. China
| | - Yongdong Li
- Ningbo Municipal Center for Disease Control and Prevention, Ningbo, 315010, P. R. China
| | - Qiao Zeng
- School of Biological and Pharmaceutical Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, P. R. China
| | - Jian Zhang
- School of Pharmaceutical Sciences, Shenzhen University Medical School, Shenzhen, 518060, China
| | - Ting Wang
- School of Biological and Pharmaceutical Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, P. R. China
| | - Si Chen
- Department of Immunology, Shenzhen University Medical School, Shenzhen, 518060, China.
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Ren YL, Lei JT, Zhang TR, Lu P, Cui DD, Yang B, Zhao GY, Peng F, Cao ZX, Peng C, Li YZ. Isobavachalcone, a natural sirtuin 2 inhibitor, exhibits anti-triple-negative breast cancer efficacy in vitro and in vivo. Phytother Res 2024; 38:1815-1829. [PMID: 38349045 DOI: 10.1002/ptr.8143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 04/10/2024]
Abstract
Triple-negative breast cancer (TNBC) is the most aggressive and lethal clinical subtype and lacks effective targeted therapies at present. Isobavachalcone (IBC), the main active component of Psoralea corylifolia L., has potential anticancer effects. Herein, we identified IBC as a natural sirtuin 2 (SIRT2) inhibitor and characterized the potential mechanisms underlying the inhibition of TNBC. Molecular dynamics analysis, enzyme activity assay, and cellular thermal shift assay were performed to evaluate the combination of IBC and SIRT2. The therapeutic effects, mechanism, and safety of IBC were analyzed in vitro and in vivo using cellular and xenograft models. IBC effectively inhibited SIRT2 enzyme activity with an IC50 value of 0.84 ± 0.22 μM by forming hydrogen bonds with VAL233 and ALA135 within its catalytic domain. In the cellular environment, IBC bound to and stabilized SIRT2, consequently inhibiting cellular proliferation and migration, and inducing apoptosis and cell cycle arrest by disrupting the SIRT2/α-tubulin interaction and inhibiting the downstream Snail/MMP and STAT3/c-Myc pathways. In the in vivo model, 30 mg/kg IBC markedly inhibited tumor growth by targeting the SIRT2/α-tubulin interaction. Furthermore, IBC exerted its effects by inducing apoptosis in tumor tissues and was well-tolerated. IBC alleviated TNBC by targeting SIRT2 and triggering the reactive oxygen species ROS/β-catenin/CDK2 axis. It is a promising natural lead compound for future development of SIRT2-targeting drugs.
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Affiliation(s)
- Ya-Li Ren
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jie-Ting Lei
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ting-Rui Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Peng Lu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Dan-Dan Cui
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Bo Yang
- West China School of Pharmacy, Sichuan University, Chengdu, China
- Department of Pharmacy, The Seventh People's Hospital of Chengdu, Chengdu, China
- Department of Pharmacy, Panzhihua Central Hospital, Dali University, Panzhihua, China
| | - Gui-Ying Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Fu Peng
- West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Zhi-Xing Cao
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yu-Zhi Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Qian W, Lu J, Gao C, Liu Q, Yao W, Wang T, Wang X, Wang Z. Isobavachalcone exhibits antifungal and antibiofilm effects against C. albicans by disrupting cell wall/membrane integrity and inducing apoptosis and autophagy. Front Cell Infect Microbiol 2024; 14:1336773. [PMID: 38322671 PMCID: PMC10845358 DOI: 10.3389/fcimb.2024.1336773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 01/03/2024] [Indexed: 02/08/2024] Open
Abstract
Isobavachalcone (IBC) is a natural flavonoid with multiple pharmacological properties. This study aimed to evaluate the efficacy of IBC against planktonic growth and biofilms of Candida albicans (C. albicans) and the mechanisms underlying its antifungal action. The cell membrane integrity, cell metabolic viability, and cell morphology of C. albicans treated with IBC were evaluated using CLSM and FESEM analyses. Crystal violet staining, CLSM, and FESEM were used to assess the inhibition of biofilm formation, as well as dispersal and killing effects of IBC on mature biofilms. RNA-seq combined with apoptosis and autophagy assays was used to examine the mechanisms underlying the antifungal action of IBC. IBC exhibited excellent antifungal activity with 8 μg/mL of MIC for C. albicans. IBC disrupted the cell membrane integrity, and inhibited biofilm formation. IBC dispersed mature biofilms and damaged biofilm cells of C. albicans at 32 μg/mL. Moreover, IBC induced apoptosis and autophagy-associated cell death of C. albicans. The RNA-seq analysis revealed upregulation or downregulation of key genes involved in cell wall synthesis (Wsc1 and Fks1), ergosterol biosynthesis (Erg3, and Erg11), apoptisis (Hsp90 and Aif1), as well as autophagy pathways (Atg8, Atg13, and Atg17), and so forth, in response to IBC, as evidenced by the experiment-based phenotypic analysis. These results suggest that IBC inhibits C. albicans growth by disrupting the cell wall/membrane, caused by the altered expression of genes associated with β-1,3-glucan and ergosterol biosynthesis. IBC induces apoptosis and autophagy-associated cell death by upregulating the expression of Hsp90, and altering autophagy-related genes involved in the formation of the Atg1 complex and the pre-autophagosomal structure. Together, our findings provide important insights into the potential multifunctional mechanism of action of IBC.
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Affiliation(s)
- Weidong Qian
- School of Biological and Pharmaceutical Engineering, Shaanxi University of Science and Technology, Xi’an, China
| | - Jiaxing Lu
- School of Biological and Pharmaceutical Engineering, Shaanxi University of Science and Technology, Xi’an, China
| | - Chang Gao
- School of Biological and Pharmaceutical Engineering, Shaanxi University of Science and Technology, Xi’an, China
| | - Qiming Liu
- School of Biological and Pharmaceutical Engineering, Shaanxi University of Science and Technology, Xi’an, China
| | - Wendi Yao
- Department of Urology, Henan Provincial People’s Hospital, Zhengzhou University People’s Hospital, Zhengzhou, China
| | - Ting Wang
- School of Biological and Pharmaceutical Engineering, Shaanxi University of Science and Technology, Xi’an, China
| | - Xiaobin Wang
- Department of Urology, Southern University of Science and Technology Hospital, Shenzhen, China
| | - Zhifeng Wang
- Department of Urology, Henan Provincial People’s Hospital, Zhengzhou University People’s Hospital, Zhengzhou, China
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Gao Y, Xu X, Zhang X. Targeting different phenotypes of macrophages: A potential strategy for natural products to treat inflammatory bone and joint diseases. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 118:154952. [PMID: 37506402 DOI: 10.1016/j.phymed.2023.154952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/27/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023]
Abstract
BACKGROUND Macrophages, a key class of immune cells, have a dual role in inflammatory responses, switching between anti-inflammatory M2 and pro-inflammatory M1 subtypes depending on the specific environment. Greater numbers of M1 macrophages correlate with increased production of inflammatory chemicals, decreased osteogenic potential, and eventually bone and joint disorders. Therefore, reversing M1 macrophages polarization is advantageous for lowering inflammatory factors. To better treat inflammatory bone disorders in the future, it may be helpful to gain insight into the specific mechanisms and natural products that modulate macrophage polarization. OBJECTIVE This review examines the impact of programmed cell death and different cells in the bone microenvironment on macrophage polarization, as well as the effects of natural products on the various phenotypes of macrophages, in order to suggest some possibilities for the treatment of inflammatory osteoarthritic disorders. METHODS Using 'macrophage polarization,' 'M1 macrophage' 'M2 macrophage' 'osteoporosis,' 'osteonecrosis of femoral head,' 'osteolysis,' 'gouty arthritis,' 'collagen-induced arthritis,' 'freund's adjuvant-induced arthritis,' 'adjuvant arthritis,' and 'rheumatoid arthritis' as search terms, the relevant literature was searched using the PubMed, the Cochrane Library and Web of Science databases. RESULTS Targeting macrophages through different signaling pathways has become a key mechanism for the treatment of inflammatory bone and joint diseases, including HIF-1α, NF-κB, AKT/mTOR, JAK1/2-STAT1, NF-κB, JNK, ERK, p-38α/β, p38/MAPK, PI3K/AKT, AMPK, AMPK/Sirt1, STAT TLR4/NF-κB, TLR4/NLRP3, NAMPT pathway, as well as the programmed cell death autophagy, pyroptosis and ERS. CONCLUSION As a result of a search of databases, we have summarized the available experimental and clinical evidence supporting herbal products as potential treatment agents for inflammatory osteoarthropathy. In this paper, we outline the various modulatory effects of natural substances targeting macrophages in various diseases, which may provide insight into drug options and directions for future clinical trials. In spite of this, more mechanistic studies on natural substances, as well as pharmacological, toxicological, and clinical studies are required.
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Affiliation(s)
- Yuhe Gao
- Graduate School, Heilongjiang University of Chinese Medicine, 24 Heping Road, Xiangfang District, Harbin, Heilongjiang 150040, China
| | - Xilin Xu
- The Third Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150000, China.
| | - Xiaofeng Zhang
- Teaching and Research Section of Orthopedics and Traumatology, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150000, China.
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8
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Michalkova R, Kello M, Cizmarikova M, Bardelcikova A, Mirossay L, Mojzis J. Chalcones and Gastrointestinal Cancers: Experimental Evidence. Int J Mol Sci 2023; 24:ijms24065964. [PMID: 36983038 PMCID: PMC10059739 DOI: 10.3390/ijms24065964] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/10/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
Colorectal (CRC) and gastric cancers (GC) are the most common digestive tract cancers with a high incidence rate worldwide. The current treatment including surgery, chemotherapy or radiotherapy has several limitations such as drug toxicity, cancer recurrence or drug resistance and thus it is a great challenge to discover an effective and safe therapy for CRC and GC. In the last decade, numerous phytochemicals and their synthetic analogs have attracted attention due to their anticancer effect and low organ toxicity. Chalcones, plant-derived polyphenols, received marked attention due to their biological activities as well as for relatively easy structural manipulation and synthesis of new chalcone derivatives. In this study, we discuss the mechanisms by which chalcones in both in vitro and in vivo conditions suppress cancer cell proliferation or cancer formation.
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Affiliation(s)
- Radka Michalkova
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, 040 01 Košice, Slovakia
| | - Martin Kello
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, 040 01 Košice, Slovakia
| | - Martina Cizmarikova
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, 040 01 Košice, Slovakia
| | - Annamaria Bardelcikova
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, 040 01 Košice, Slovakia
| | - Ladislav Mirossay
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, 040 01 Košice, Slovakia
| | - Jan Mojzis
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, 040 01 Košice, Slovakia
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9
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Pereira AM, Cidade H, Tiritan ME. Stereoselective Synthesis of Flavonoids: A Brief Overview. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28010426. [PMID: 36615614 PMCID: PMC9823814 DOI: 10.3390/molecules28010426] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/23/2022] [Accepted: 12/27/2022] [Indexed: 01/05/2023]
Abstract
Stereoselective synthesis has been emerging as a resourceful tool because it enables the obtaining of compounds with biological interest and high enantiomeric purity. Flavonoids are natural products with several biological activities. Owing to their biological potential and aiming to achieve enantiomerically pure forms, several methodologies of stereoselective synthesis have been implemented. Those approaches encompass stereoselective chalcone epoxidation, Sharpless asymmetric dihydroxylation, Mitsunobu reaction, and the cycloaddition of 1,4-benzoquinone. Chiral auxiliaries, organo-, organometallic, and biocatalysis, as well as the chiral pool approach were also employed with the goal of obtaining chiral bioactive flavonoids with a high enantiomeric ratio. Additionally, the employment of the Diels-Alder reaction based on the stereodivergent reaction on a racemic mixture strategy or using catalyst complexes to synthesise pure enantiomers of flavonoids was reported. Furthermore, biomimetic pathways displayed another approach as illustrated by the asymmetric coupling of 2-hydroxychalcones driven by visible light. Recently, an asymmetric transfer hydrogen-dynamic kinetic resolution was also applied to synthesise (R,R)-cis-alcohols which, in turn, would be used as building blocks for the stereoselective synthesis of flavonoids.
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Affiliation(s)
- Ana Margarida Pereira
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal
| | - Honorina Cidade
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal
| | - Maria Elizabeth Tiritan
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal
- TOXRUN—Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, Rua Central de Gandra 1317, 4585-116 Gandra, Portugal
- Correspondence:
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Guo L, Zhao W, Wang Y, Yang Y, Wei C, Guo J, Dai J, Hirai MY, Bao A, Yang Z, Chen H, Li Y. Heterologous biosynthesis of isobavachalcone in tobacco based on in planta screening of prenyltransferases. FRONTIERS IN PLANT SCIENCE 2022; 13:1034625. [PMID: 36275607 PMCID: PMC9582842 DOI: 10.3389/fpls.2022.1034625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Isobavachalcone (IBC) is a prenylated chalcone mainly distributed in some Fabaceae and Moraceae species. IBC exhibits a wide range of pharmacological properties, including anti-bacterial, anti-viral, anti-inflammatory, and anti-cancer activities. In this study, we attempted to construct the heterologous biosynthesis pathway of IBC in tobacco (Nicotiana tabacum). Four previously reported prenyltransferases, including GuILDT from Glycyrrhiza uralensis, HlPT1 from Humulus lupulus, and SfILDT and SfFPT from Sophora flavescens, were subjected to an in planta screening to verify their activities for the biosynthesis of IBC, by using tobacco transient expression with exogenous isoliquiritigenin as the substrate. Only SfFPT and HlPT1 could convert isoliquiritigenin to IBC, and the activity of SfFPT was higher than that of HlPT1. By co-expression of GmCHS8 and GmCHR5 from Glycine max, endogenous isoliquiritigenin was generated in tobacco leaves (21.0 μg/g dry weight). After transformation with a multigene vector carrying GmCHS8, GmCHR5, and SfFPT, de novo biosynthesis of IBC was achieved in transgenic tobacco T0 lines, in which the highest amount of IBC was 0.56 μg/g dry weight. The yield of IBC in transgenic plants was nearly equal to that in SfFPT transient expression experiments, in which substrate supplement was sufficient, indicating that low IBC yield was not attributed to the substrate supplement. Our research provided a prospect to produce valuable prenylflavonoids using plant-based metabolic engineering.
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Affiliation(s)
- Lirong Guo
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Wei Zhao
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Yan Wang
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Yu Yang
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Cuimei Wei
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Jian Guo
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Jianye Dai
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | | | - Aike Bao
- College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China
| | - Zhigang Yang
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Haijuan Chen
- Key Laboratory of Medicinal Animal and Plant Resources of Qinghai-Tibetan Plateau, Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining, China
| | - Yimeng Li
- School of Pharmacy, Lanzhou University, Lanzhou, China
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
- Key Laboratory of Medicinal Animal and Plant Resources of Qinghai-Tibetan Plateau, Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining, China
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11
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The Current State of Knowledge in Biological Properties of Cirsimaritin. Antioxidants (Basel) 2022; 11:antiox11091842. [PMID: 36139916 PMCID: PMC9495358 DOI: 10.3390/antiox11091842] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/08/2022] [Accepted: 09/13/2022] [Indexed: 11/17/2022] Open
Abstract
The search for natural plant-based products as new pharmacological alternatives to treat various human pathologies has taken on great importance for researchers and research laboratories. In this context, research has intensified to extract and identify natural molecules endowed with biological effects. The objective of this study is to review the source and pharmacological properties of cirsimaritin. The identification and isolation of this flavonoid from various natural sources, including medicinal plants such as Artemisia judaica, Cirsium japonicum, Lithocarpus dealbatus, Microtea debilis, and Ocimum sanctum, has been carried out and verified using different spectral techniques. Biological effect investigations are carried out with a wide variety of experimental models in vitro and in vivo and laboratory techniques. The results of these research works showed the biological properties of cirsimaritin including anticancer, antimicrobial, antidiabetic, antiparasitic, antioxidant, and anti-inflammatory effects. The mechanisms involved in the multiple activities of this molecule are diverse and include sub-cellular, cellular, and molecular levels. Indeed, this bioactive induces anti-inflammatory and antiproliferative effects by inhibiting cell membrane receptors, interference with signaling pathways, and inhibiting transcriptional factors such as Nf-κB involved in cell promotion and proliferation. In the light of these results, cirsimaritin appears as a promising and viable alternative natural bioactive drug to treat many pathological conditions.
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Wu Y, Chang J, Ge J, Xu K, Zhou Q, Zhang X, Zhu N, Hu M. Isobavachalcone's Alleviation of Pyroptosis Contributes to Enhanced Apoptosis in Glioblastoma: Possible Involvement of NLRP3. Mol Neurobiol 2022; 59:6934-6955. [PMID: 36053436 DOI: 10.1007/s12035-022-03010-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 08/18/2022] [Indexed: 10/14/2022]
Abstract
Glioblastoma multiforme (GBM) is the most malignant intracranial tumor with high mortality rates and invariably poor prognosis due to its limited clinical treatments. There is an urgent need to develop new therapeutic drugs for GBM treatment. As a natural prenylated chalcone compound, Isobavachalcone (IBC)'s favorable pharmacological activities have been widely revealed. However, potential inhibitory effects of IBC on GBM have not been explored. In the present study, we aimed to detect the effects of IBC on GBM and clarify its anti-GBM mechanisms for the first time. It was observed that IBC could inhibit GBM cell proliferation, migration, and invasion in vitro and prevent tumor growth without any significant drug toxicity in both subcutaneous and orthotopic GBM xenograft tumor models in vivo. Mechanistically, IBC may target NOD-like receptor family pyrin domain-containing 3 (NLRP3) transcription factor estrogen receptor α (ESR1 gene) by network pharmacology and molecular docking analysis. Experimentally, IBC alleviated NLRP3 inflammasome-related pyroptosis and inflammation, arrested cell cycle at G1 phase, and induced mitochondria-dependent apoptosis in GBM cells. IBC's inhibition on NLRP3 could be rescued by the NLRP3 antagonist CY-09 both in vitro and in vivo. These results indicate that IBC is a potential therapeutic drug against GBM and provide a new insight into GBM treatment.
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Affiliation(s)
- Yueshan Wu
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437100, Hubei, People's Republic of China
| | - Jing Chang
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437100, Hubei, People's Republic of China
| | - Juanjuan Ge
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437100, Hubei, People's Republic of China
| | - Kangyan Xu
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437100, Hubei, People's Republic of China
| | - Quan Zhou
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437100, Hubei, People's Republic of China
| | - Xiaowen Zhang
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437100, Hubei, People's Republic of China
| | - Ni Zhu
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437100, Hubei, People's Republic of China.
| | - Meichun Hu
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437100, Hubei, People's Republic of China.
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