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Cheng Y, Liu X, Qu W, Wang X, Su H, Li W, Xu W. Amentoflavone alleviated cartilage injury and inflammatory response of knee osteoarthritis through PTGS2. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03222-4. [PMID: 38856914 DOI: 10.1007/s00210-024-03222-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 06/04/2024] [Indexed: 06/11/2024]
Abstract
The role of amentoflavone on cartilage injury in knee osteoarthritis (KOA) rats and the underlying mechanism were explored. KOA rat and IL-1β-stimulated chondrocyte models were constructed. MTT, colony formation, and ELISA were performed to determine the cytotoxicity, cell proliferation, and inflammatory factors. The role of PTGS2 in IL-1β-stimulated chondrocytes was also confirmed through transfecting PTGS2 overexpression and silencing plasmids. Further, we analyzed how amentoflavone regulated PTGS2 to improve IL-1β-stimulated chondrocytes in vitro. Additionally, we analyzed the expression of PTGS2 after amentoflavone treatment. In vivo, HE and Safranin-O staining were carried out, and the inflammatory response was detected by ELISA and HE staining. In addition, we also analyzed the regulatory effect of amentoflavone on PTGS2 and explored the mechanism effect of PTGS2 in vitro and in vivo. The results indicated that PTGS2 was the downstream molecule of amentoflavone, which was highly expressed in IL-1β-stimulated chondrocytes and KOA rats, and amentoflavone decreased PTGS2 expression. We also confirmed the potential role of amentoflavone on KOA, which was also characterized by the repair of cartilage injury, reduction of inflammatory infiltration, and improvement of functional disability. Consistent with in vivo results, in vitro experiments gave the same conclusions. Amentoflavone reduced PTGS2 expression in IL-1β-stimulated chondrocytes and inhibited inflammation of chondrocytes via PTGS2. Collectively, the results confirmed that this drug was the potential targeted drug for KOA, whose repair effect on cartilage injury was partly related to PTGS2.
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Affiliation(s)
- Yiheng Cheng
- Department of Orthopaedics, Yantaishan Hospital, Yantai, 264000, Shandong, China
| | - Xiaofeng Liu
- Department of Traumatic Orthopaedics, Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
| | - Wenqing Qu
- Department of Orthopaedics, Yantaishan Hospital, Yantai, 264000, Shandong, China
| | - Xin Wang
- Department of Traumatic Orthopaedics, Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
| | - Hao Su
- Department of Traumatic Orthopaedics, Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
| | - Wenliang Li
- Department of Orthopaedics, Yantaishan Hospital, Yantai, 264000, Shandong, China
| | - Wenqiang Xu
- Department of Hand and Foot Surgery, Yantai Yuhuangding Hospital of Qingdao University, 20 Yuhuangding East Road, Yantai, 264000, Shandong, China.
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2
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Wang Z, Wang B, Jin X. Amentoflavone attenuates homocysteine-induced neuronal ferroptosis-mediated inflammatory response: involvement of the SLC7A11/GPX4 axis activation. Brain Res Bull 2024:111005. [PMID: 38852649 DOI: 10.1016/j.brainresbull.2024.111005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 06/03/2024] [Accepted: 06/06/2024] [Indexed: 06/11/2024]
Abstract
Elevated homocysteine (Hcy) levels, referred to hyperhomocysteinemia, are associated with an increased risk of several neurological disorders. Ferroptosis and inflammation play a vital role in Hcy-induced neuronal dysfunction. Amentoflavone (AMF), an active natural biflavone compound, exhibits antioxidative, anti-inflammatory, and neuroprotective activities. This study aimed to explore the potential effects of AMF on Hcy-induced neuronal injury, with a particular focus on the underlying mechanisms involving ferroptosis and inflammation. We assessed neuronal damage in HT22 cells by measuring cell viability, lactate dehydrogenase (LDH) release, and proliferation rates. Additionally, we evaluated oxidative stress markers including the levels of reactive oxygen species (ROS), MitoSOX, mitochondrial membrane potential (MMP), malondialdehyde (MDA), and glutathione (GSH). Iron metabolism and ferroptosis-related gene expressions (Ptgs2, Tfr1, and Fth1) were quantified. TheSLC7A11/GPX4 axis was also detected. Our results showed that AMF treatment dramatically mitigated Hcy-induced neuronal injury by increasing cell viability, decreasing LDH release, and promoting cell proliferation. AMF treatment also reduced Hcy-induced oxidative stress and lipid peroxidation, as evidenced by reduced ROS, MitoSOX, MMP, and MDA levels, along with an increased GSH content in HT22 cells. In addition, AMF treatment reduced iron content and ferroptosis-related gene mRNA levels. However, Erastin, a ferroptosis inducer, blocked these neuroprotective effects of AMF. Ferroptosis inhibitor Ferrostatin-1 also attenuated Hcy-induced ferroptosis. Moreover, both AMF and Ferrostatin-1 effectively mitigated Hcy-induced inflammation, which was again antagonized by Erastin. Mechanistically, AMF treatment enhanced SLC7A11/GPX4 axis in Hcy-treated HT22 cells. In conclusion, these findings suggest that AMF possesses neuroprotection against Hcy-induced injury primarily by inhibiting ferroptosis-mediated inflammation, partly through the activation of SLC7A11/GPX4 axis.
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Affiliation(s)
- Ziyao Wang
- The Affiliated Nanhua Hospital, Department of Ultrasound Medicine, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China; The First Affiliated Hospital, Department of Ultrasound Medicine, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China; State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University 400016, Chongqing, China
| | - Bo Wang
- The First Affiliated Hospital, Institute of Anesthesiology, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, PR China
| | - Xin Jin
- The Affiliated Nanhua Hospital, Department of Anesthesiology, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China.
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3
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Jian H, Zhang J, Liu Z, Zhang Z, Zeng P. Amentoflavone reverses epithelial-mesenchymal transition in hepatocellular carcinoma cells by targeting p53 signalling pathway axis. J Cell Mol Med 2024; 28:e18442. [PMID: 38842135 PMCID: PMC11154840 DOI: 10.1111/jcmm.18442] [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: 02/02/2024] [Revised: 05/08/2024] [Accepted: 05/11/2024] [Indexed: 06/07/2024] Open
Abstract
Epithelial-mesenchymal transition (EMT) and its reversal process are important potential mechanisms in the development of HCC. Selaginella doederleinii Hieron is widely used in Traditional Chinese Medicine for the treatment of various tumours and Amentoflavone is its main active ingredient. This study investigates the mechanism of action of Amentoflavone on EMT in hepatocellular carcinoma from the perspective of bioinformatics and network pharmacology. Bioinformatics was used to screen Amentoflavone-regulated EMT genes that are closely related to the prognosis of HCC, and a molecular prediction model was established to assess the prognosis of HCC. The network pharmacology was used to predict the pathway axis regulated by Amentoflavone. Molecular docking of Amentoflavone with corresponding targets was performed. Detection and evaluation of the effects of Amentoflavone on cell proliferation, migration, invasion and apoptosis by CCK-8 kit, wound healing assay, Transwell assay and annexin V-FITC/propidium iodide staining. Eventually three core genes were screened, inculding NR1I2, CDK1 and CHEK1. A total of 590 GO enrichment entries were obtained, and five enrichment results were obtained by KEGG pathway analysis. Genes were mainly enriched in the p53 signalling pathway. The outcomes derived from both the wound healing assay and Transwell assay demonstrated significant inhibition of migration and invasion in HCC cells upon exposure to different concentrations of Amentoflavone. The results of Annexin V-FITC/PI staining assay showed that different concentrations of Amentoflavone induces apoptosis in HCC cells. This study revealed that the mechanism of Amentoflavone reverses EMT in hepatocellular carcinoma, possibly by inhibiting the expression of core genes and blocking the p53 signalling pathway axis to inhibit the migration and invasion of HCC cells.
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Affiliation(s)
| | | | - Zhuo Liu
- Hunan Provincial Hospital of Integrated Traditional Chinese and Western, Cancer Research Institute of Hunan Academy of Traditional Chinese MedicineHunan Academy of Chinese MedicineHunanChina
| | - Zhen Zhang
- Hunan Provincial Hospital of Integrated Traditional Chinese and Western, Cancer Research Institute of Hunan Academy of Traditional Chinese MedicineHunan Academy of Chinese MedicineHunanChina
| | - Pu‐Hua Zeng
- Hunan Provincial Hospital of Integrated Traditional Chinese and Western, Cancer Research Institute of Hunan Academy of Traditional Chinese MedicineHunan Academy of Chinese MedicineHunanChina
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Yeon Kim S, Tang M, Lu T, Chih SY, Li W. Ferroptosis in glioma therapy: advancements in sensitizing strategies and the complex tumor-promoting roles. Brain Res 2024; 1840:149045. [PMID: 38821335 DOI: 10.1016/j.brainres.2024.149045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 05/03/2024] [Accepted: 05/28/2024] [Indexed: 06/02/2024]
Abstract
Ferroptosis, an iron-dependent form of non-apoptotic regulated cell death, is induced by the accumulation of lipid peroxides on cellular membranes. Over the past decade, ferroptosis has emerged as a crucial process implicated in various physiological and pathological systems. Positioned as an alternative modality of cell death, ferroptosis holds promise for eliminating cancer cells that have developed resistance to apoptosis induced by conventional therapeutics. This has led to a growing interest in leveraging ferroptosis for cancer therapy across diverse malignancies. Gliomas are tumors arising from glial or precursor cells, with glioblastoma (GBM) being the most common malignant primary brain tumor that is associated with a dismal prognosis. This review provides a summary of recent advancements in the exploration of ferroptosis-sensitizing methods, with a specific focus on their potential application in enhancing the treatment of gliomas. In addition to summarizing the therapeutic potential, this review also discusses the intricate interplay of ferroptosis and its potential tumor-promoting roles within gliomas. Recognizing these dual roles is essential, as they could potentially complicate the therapeutic benefits of ferroptosis. Exploring strategies aimed at circumventing these tumor-promoting roles could enhance the overall therapeutic efficacy of ferroptosis in the context of glioma treatment.
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Affiliation(s)
- Soo Yeon Kim
- Division of Hematology and Oncology, Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA
| | - Miaolu Tang
- Division of Hematology and Oncology, Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA
| | - Tong Lu
- Division of Hematology and Oncology, Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA
| | - Stephen Y Chih
- Division of Hematology and Oncology, Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA; Medical Scientist Training Program, Penn State College of Medicine, Hershey, PA, USA
| | - Wei Li
- Division of Hematology and Oncology, Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA; Penn State Cancer Institute, Penn State College of Medicine, Hershey, PA, USA; Department of Biochemistry and Molecular Biology, Penn State College of Medicine, Hershey, PA, USA.
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Peng Y, Chen Q, Xue YH, Jin H, Liu S, Du MQ, Yao SY. Ginkgo biloba and Its Chemical Components in the Management of Alzheimer's Disease. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2024; 52:625-666. [PMID: 38654507 DOI: 10.1142/s0192415x24500277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
The pathogenesis of Alzheimer's disease (AD), a degenerative disease of the central nervous system, remains unclear. The main manifestations of AD include cognitive and behavioral disorders, neuropsychiatric symptoms, neuroinflammation, amyloid plaques, and neurofibrillary tangles. However, current drugs for AD once the dementia stage has been reached only treat symptoms and do not delay progression, and the research and development of targeted drugs for AD have reached a bottleneck. Thus, other treatment options are needed. Bioactive ingredients derived from plants are promising therapeutic agents. Specifically, Ginkgo biloba (Gb) extracts exert anti-oxidant, anticancer, neuroplastic, neurotransmitter-modulating, blood fluidity, and anti-inflammatory effects, offering alternative options in the treatment of cardiovascular, metabolic, and neurodegenerative diseases. The main chemical components of Gb include flavonoids, terpene lactones, proanthocyanidins, organic acids, polysaccharides, and amino acids. Gb and its extracts have shown remarkable therapeutic effects on various neurodegenerative diseases, including AD, with few adverse reactions. Thus, high-quality Gb extracts are a well-established treatment option for AD. In this review, we summarize the insights derived from traditional Chinese medicine, experimental models, and emerging clinical trials on the role of Gb and its chemical components in the treatment of the main clinical manifestations of AD.
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Affiliation(s)
- Yong Peng
- Department of Neurology, Affiliated First Hospital of Hunan Traditional, Chinese Medical College, Zhuzhou, Hunan, P. R. China
- Department of Neurology, Affiliated Provincial Hospital of Hunan University of Chinese Medicine, Zhuzhou, Hunan, P. R. China
| | - Quan Chen
- Department of Neurology, Affiliated First Hospital of Hunan Traditional, Chinese Medical College, Zhuzhou, Hunan, P. R. China
- Department of Neurology, Affiliated Provincial Hospital of Hunan University of Chinese Medicine, Zhuzhou, Hunan, P. R. China
| | - Ya-Hui Xue
- Department of Neurology, Affiliated First Hospital of Hunan Traditional, Chinese Medical College, Zhuzhou, Hunan, P. R. China
- Department of Neurology, Affiliated Provincial Hospital of Hunan University of Chinese Medicine, Zhuzhou, Hunan, P. R. China
| | - Hong Jin
- Department of Neurology, Affiliated First Hospital of Hunan Traditional, Chinese Medical College, Zhuzhou, Hunan, P. R. China
- Department of Neurology, Affiliated Provincial Hospital of Hunan University of Chinese Medicine, Zhuzhou, Hunan, P. R. China
| | - Shu Liu
- Department of Neurology, Affiliated First Hospital of Hunan Traditional, Chinese Medical College, Zhuzhou, Hunan, P. R. China
- Department of Neurology, Affiliated Provincial Hospital of Hunan University of Chinese Medicine, Zhuzhou, Hunan, P. R. China
| | - Miao-Qiao Du
- Department of Neurology, Affiliated First Hospital of Hunan Traditional, Chinese Medical College, Zhuzhou, Hunan, P. R. China
- Department of Neurology, Affiliated Provincial Hospital of Hunan University of Chinese Medicine, Zhuzhou, Hunan, P. R. China
| | - Shun-Yu Yao
- Department of Neurology, Affiliated First Hospital of Hunan Traditional, Chinese Medical College, Zhuzhou, Hunan, P. R. China
- Department of Neurology, Affiliated Provincial Hospital of Hunan University of Chinese Medicine, Zhuzhou, Hunan, P. R. China
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Zhang Y, Xie J. Induction of ferroptosis by natural phenols: A promising strategy for cancer therapy. Phytother Res 2024; 38:2041-2076. [PMID: 38391022 DOI: 10.1002/ptr.8149] [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: 11/06/2023] [Revised: 12/19/2023] [Accepted: 01/19/2024] [Indexed: 02/24/2024]
Abstract
In recent years, heightened interest surrounds the exploration of natural phenols as potential agents for cancer therapy, specifically by inducing ferroptosis, a unique form of regulated cell death characterized by iron-dependent lipid peroxidation. This review delves into the roles of key natural phenols, flavonoids, phenolic acids, curcumin, and stilbenes, in modulating ferroptosis and their underlying mechanisms. Emphasizing the significance of amino acid, lipid, and iron metabolism, the study elucidates the diverse pathways through which these phenols regulate ferroptosis. Notably, curcumin, a well-known polyphenol, exhibits multifaceted interactions with cellular components involved in ferroptosis regulation, providing a distinctive therapeutic avenue. Stilbenes, another phenolic class, demonstrate promising potential in influencing lipid metabolism and iron-dependent processes, contributing to ferroptotic cell death. Understanding the intricate interplay between these natural phenols and ferroptosis not only illuminates complex cellular regulatory networks but also unveils potential avenues for novel cancer therapies. Exploring these compounds as inducers of ferroptosis presents a promising strategy for targeted cancer treatment, capitalizing on the delicate balance between cellular metabolism and regulated cell death mechanisms. This article synthesizes current knowledge, aiming to stimulate further research into the therapeutic potential of natural phenols in the context of ferroptosis-mediated cancer therapy.
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Affiliation(s)
- Yiping Zhang
- School of Life Sciences, Fudan University, Shanghai, China
- Wanchuanhui (Shanghai) Medical Technology Co., Ltd, Shanghai, China
| | - Jun Xie
- School of Life Sciences, Fudan University, Shanghai, China
- Wanchuanhui (Shanghai) Medical Technology Co., Ltd, Shanghai, China
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Fakhri S, Moradi SZ, Faraji F, Kooshki L, Webber K, Bishayee A. Modulation of hypoxia-inducible factor-1 signaling pathways in cancer angiogenesis, invasion, and metastasis by natural compounds: a comprehensive and critical review. Cancer Metastasis Rev 2024; 43:501-574. [PMID: 37792223 DOI: 10.1007/s10555-023-10136-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 09/07/2023] [Indexed: 10/05/2023]
Abstract
Tumor cells employ multiple signaling mediators to escape the hypoxic condition and trigger angiogenesis and metastasis. As a critical orchestrate of tumorigenic conditions, hypoxia-inducible factor-1 (HIF-1) is responsible for stimulating several target genes and dysregulated pathways in tumor invasion and migration. Therefore, targeting HIF-1 pathway and cross-talked mediators seems to be a novel strategy in cancer prevention and treatment. In recent decades, tremendous efforts have been made to develop multi-targeted therapies to modulate several dysregulated pathways in cancer angiogenesis, invasion, and metastasis. In this line, natural compounds have shown a bright future in combating angiogenic and metastatic conditions. Among the natural secondary metabolites, we have evaluated the critical potential of phenolic compounds, terpenes/terpenoids, alkaloids, sulfur compounds, marine- and microbe-derived agents in the attenuation of HIF-1, and interconnected pathways in fighting tumor-associated angiogenesis and invasion. This is the first comprehensive review on natural constituents as potential regulators of HIF-1 and interconnected pathways against cancer angiogenesis and metastasis. This review aims to reshape the previous strategies in cancer prevention and treatment.
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Affiliation(s)
- Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, 6734667149, Iran
| | - Seyed Zachariah Moradi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, 6734667149, Iran
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, 6734667149, Iran
| | - Farahnaz Faraji
- Department of Pharmaceutics, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Leila Kooshki
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, 6714415153, Iran
| | - Kassidy Webber
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, 5000 Lakewood Ranch Boulevard, Bradenton, FL, 34211, USA
| | - Anupam Bishayee
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, 5000 Lakewood Ranch Boulevard, Bradenton, FL, 34211, USA.
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Bhattacharya P, Mandal A. Identification of amentoflavone as a potent SARS-CoV-2 M pro inhibitor: a combination of computational studies and in vitro biological evaluation. J Biomol Struct Dyn 2024:1-19. [PMID: 38263736 DOI: 10.1080/07391102.2024.2304676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 01/07/2024] [Indexed: 01/25/2024]
Abstract
Small-molecule inhibitors of SARS-CoV-2 Mpro that block the active site pocket of the viral main protease have been considered potential therapeutics for the development of drugs against SARS-CoV-2. Here, we report the identification of amentoflavone (a biflavonoid) through docking-based virtual screening of a library comprised of 231 compounds consisting of flavonoids and isoflavonoids. The docking results were further substantiated through extensive analysis of the data obtained from all-atom 150 ns MD simulation. End-state effective free energy calculations using MM-PBSA calculations further suggested that (Ra)-amentoflavone (C3'-C8''-atropisomer) may show a greater binding affinity towards the Mpro than (Sa)-amentoflavone. In vitro cytotoxicity assay established that amentoflavone showed a high CC50 value indicating much lower toxicity. Further, potent inhibition of the Mpro by amentoflavone was established by studying the effect on HEK293T cells treated with SARS-CoV-2 Mpro expressing plasmid.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
| | - Anirban Mandal
- Department of Microbiology, Mrinalini Datta Mahavidyapith, Kolkata, India
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Jo S, Kim MS, Kim HY, Kim S, Kam H, Choi H, Shin DH. Amentoflavone, a potent natural matrix metalloproteinase 2 inhibitor. Nat Prod Res 2023:1-8. [PMID: 38112430 DOI: 10.1080/14786419.2023.2294108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 12/04/2023] [Indexed: 12/21/2023]
Abstract
Gelatinase A (MMP-2) has been studied and proven to play a vital role in the intrusion and metastasis of cancer. Flavonoids influence on molecular and cellular functions of MMP-2 and thus a systematic investigation of flavonoids against the metalloproteolytic activity of MMP-2 has been performed in this study. A fluorescence resonance energy transfer method was used to investigate the inhibitory activities of various flavonoids. Flavone, flavonol and isobavachalcone derivatives showed their inhibitory activity against MMP-2. Surprisingly, the most effective inhibitor was Amentoflavone and its blocking function was superior to other flavonoids. Its IC50 value was 0.689 μM. An induced-fit docking study was carried out to survey its extraordinary activity. The binding mode of Amentoflavone is quite similar to that of (2 ∼ {S})-2-[2-[4-(4-methoxyphenyl) phenyl] sulfanylphenyl] pentanedioic acid complexed with MMP-9. Amentoflavone interacts with the functional zinc and catalytic residue, Glu202. Therefore, the docking study reasonably confirmed the strong inhibitory activity of Amentoflavone.
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Affiliation(s)
- Seri Jo
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Mi-Sun Kim
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Hwa-Young Kim
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Suwon Kim
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Heejin Kam
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Haein Choi
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Dong Hae Shin
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
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Balaha MF, Alamer AA, Aldossari RM, Aodah AH, Helal AI, Kabel AM. Amentoflavone Mitigates Cyclophosphamide-Induced Pulmonary Toxicity: Involvement of -SIRT-1/Nrf2/Keap1 Axis, JAK-2/STAT-3 Signaling, and Apoptosis. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:2119. [PMID: 38138222 PMCID: PMC10744450 DOI: 10.3390/medicina59122119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/23/2023] [Accepted: 12/01/2023] [Indexed: 12/24/2023]
Abstract
Background and objectives: Cyclophosphamide (CPA) is an alkylating agent that is used for the management of various types of malignancies and as an immunosuppressive agent for the treatment of immunological disorders. However, its use is limited by its potential to cause a wide range of pulmonary toxicities. Amentoflavone (AMV) is a flavonoid that had proven efficacy in the treatment of disease states in which oxidative stress, inflammation, and apoptosis may play a pathophysiologic role. This study investigated the potential ameliorative effects of the different doses of AMV on CPA-induced pulmonary toxicity, with special emphasis on its antioxidant, anti-inflammatory, and apoptosis-modulating effects. Materials and methods: In a rat model of CPA-induced pulmonary toxicity, the effect of AMV at two dose levels (50 mg/kg/day and 100 mg/kg/day) was investigated. The total and differential leucocytic counts, lactate dehydrogenase activity, and levels of pro-inflammatory cytokines in the bronchoalveolar lavage fluid were estimated. Also, the levels of oxidative stress parameters, sirtuin-1, Keap1, Nrf2, JAK2, STAT3, hydroxyproline, matrix metalloproteinases 3 and 9, autophagy markers, and the cleaved caspase 3 were assessed in the pulmonary tissues. In addition, the histopathological and electron microscopic changes in the pulmonary tissues were evaluated. Results: AMV dose-dependently ameliorated the pulmonary toxicities induced by CPA via modulation of the SIRT-1/Nrf2/Keap1 axis, mitigation of the inflammatory and fibrotic events, impaction of JAK-2/STAT-3 axis, and modulation of the autophagic and apoptotic signals. Conclusions: AMV may open new horizons towards the mitigation of the pulmonary toxicities induced by CPA.
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Affiliation(s)
- Mohamed F. Balaha
- Clinical Pharmacy Department, College of Pharmacy, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
- Pharmacology Department, Faculty of Medicine, Tanta University, El-Gish Street, Tanta 31527, Egypt
| | - Ahmed A. Alamer
- Clinical Pharmacy Department, College of Pharmacy, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Rana M. Aldossari
- Department of Pharmacology and Toxicology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Alhussain H. Aodah
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Azza I. Helal
- Department of Histology and Cell Biology, Faculty of Medicine, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - Ahmed M. Kabel
- Pharmacology Department, Faculty of Medicine, Tanta University, El-Gish Street, Tanta 31527, Egypt
- National Committee of Drugs, Academy of Scientific Research and Technology (ASRT), Ministry of Higher Education, Cairo 11694, Egypt
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Saeedan AS, Abdel-Rahman RF, Soliman GA, Ogaly HA, Abdel-Kader MS. Amentoflavone attenuates oxidative stress and neuroinflammation induced by cerebral ischemia/reperfusion in rats by targeting HMGB1-mediated TLR4/NF-κB signaling pathway. Saudi Pharm J 2023; 31:101798. [PMID: 37811125 PMCID: PMC10551888 DOI: 10.1016/j.jsps.2023.101798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 09/19/2023] [Indexed: 10/10/2023] Open
Abstract
Surveys indicated that stroke classified among the leading cause of death as well as combined death and disability worldwide resulting in a great loss for the global economy. The present study aims to evaluate the neuroprotective potential of the biflavonoid amentoflavone (AMNT) in alleviating cerebral ischemia/reperfusion (IR) injury in rats, and to elucidate the possible underlying mechanism of an experimental condition with similar circumstances to stroke. Cerebral ischemia was achieved through left common carotid artery occlusion for 60 min, followed by blood flow restoration. Sham-operated control rats subjected to the same surgical process except for brain IR. Rats were orally administered AMNT/ or vehicle for three days' prior surgical operation, and for another three days after left brain IR. Rats of all groups were assessed for neurological deficits 24 h following brain IR. Each group was divided into two subgroups one for the rotarod testing and biochemical assessment while the other subgroup to perform the activity cage testing, histopathological study, immunohistochemistry, and gene expression analysis. AMNT enhanced brain levels of GSH and CAT activities, suppressed neuroinflammation via reducing the inflammatory cytokines in the serum, and enhanced brain contents of TBK1 and IFNβ. AMNT downregulated TLR4-/NF-κB signaling pathway as a result of the HMGB1 suppression. Moreover, AMNT blocked apoptotic cell death by suppressing the NF-κB signaling pathway and reducing the activation of caspase-3. These findings revealed that AMNT attenuates I/R-induced cerebral injury possibly by regulating the HMGB1-mediated TLR4/NF-kB pathway. Thus, AMNT could provide potential preventive and therapeutic option for cerebral stroke.
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Affiliation(s)
- Abdulaziz S. Saeedan
- Department of Pharmacology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | | | - Gamal A. Soliman
- Department of Pharmacology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
- Department of Pharmacology, College of Veterinary Medicine, Cairo University, Giza 12613, Egypt
| | - Hanan A. Ogaly
- Department of Chemistry, College of Science, King Khalid University, Abha 61421, Saudi Arabia
- Department of Biochemistry, College of Veterinary Medicine, Cairo University, Giza 12613, Egypt
| | - Maged S. Abdel-Kader
- Department of Pharmacognosy, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
- Department of Pharmacognosy, College of Pharmacy, Alexandria University, Alexandria 21215, Egypt
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12
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Glenn IS, Hall LN, Khalid MM, Ott M, Shoichet BK. Colloidal aggregation confounds cell-based Covid-19 antiviral screens. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.27.564435. [PMID: 37961552 PMCID: PMC10634915 DOI: 10.1101/2023.10.27.564435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Colloidal aggregation is one of the largest contributors to false-positives in early drug discovery and chemical biology. Much work has focused on its impact on pure-protein screens; here we consider aggregations role in cell-based infectivity assays in Covid-19 drug repurposing. We began by investigating the potential aggregation of 41 drug candidates reported as SARs-CoV-2 entry inhibitors. Of these, 17 formed colloidal-particles by dynamic light scattering and exhibited detergent-dependent enzyme inhibition. To evaluate antiviral efficacy of the drugs in cells we used spike pseudotyped lentivirus and pre-saturation of the colloids with BSA. The antiviral potency of the aggregators was diminished by at least 10-fold and often entirely eliminated in the presence of BSA, suggesting antiviral activity can be attributed to the non-specific nature of the colloids. In confocal microscopy, the aggregates induced fluorescent puncta of labeled spike protein, consistent with sequestration of the protein on the colloidal particles. Addition of either non-ionic detergent or of BSA disrupted these puncta. These observations suggest that colloidal aggregation is common among cell-based anti-viral drug repurposing, and perhaps cell-based assays more broadly, and offers rapid counter-screens to detect and eliminate these artifacts, allowing the community invest resources in compounds with true potential as a Covid-19 therapeutic.
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Affiliation(s)
- Isabella S Glenn
- Department of Pharmaceutical Chemistry, University of California San Francisco (UCSF), San Francisco, CA, USA
| | - Lauren N Hall
- Department of Pharmaceutical Chemistry, University of California San Francisco (UCSF), San Francisco, CA, USA
| | - Mir M Khalid
- Gladstone Institutes, San Francisco, California, United States
- Department of Medicine, University of California, San Francisco, San Francisco, California, United States
| | - Melanie Ott
- Gladstone Institutes, San Francisco, California, United States
- Department of Medicine, University of California, San Francisco, San Francisco, California, United States
- Chan Zuckerberg Biohub, San Francisco, California, United States
| | - Brian K Shoichet
- Department of Pharmaceutical Chemistry, University of California San Francisco (UCSF), San Francisco, CA, USA
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13
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Jurčević Šangut I, Šarkanj B, Karalija E, Šamec D. A Comparative Analysis of Radical Scavenging, Antifungal and Enzyme Inhibition Activity of 3'-8″-Biflavones and Their Monomeric Subunits. Antioxidants (Basel) 2023; 12:1854. [PMID: 37891933 PMCID: PMC10604771 DOI: 10.3390/antiox12101854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/09/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Biflavonoids are dimeric forms of flavonoids that have recently gained importance as an effective new scaffold for drug discovery. In particular, 3'-8″-biflavones exhibit antiviral and antimicrobial activity and are promising molecules for the treatment of neurodegenerative and metabolic diseases as well as cancer therapies. In the present study, we directly compared 3'-8″-biflavones (amentoflavone, bilobetin, ginkgetin, isoginkgetin, and sciadopitysin) and their monomeric subunits (apigenin, genkwanin, and acacetin) and evaluated their radical scavenging activity (with DPPH), antifungal activity against mycotoxigenic fungi (Alternaria alternata, Aspergillus flavus, Aspergillus ochraceus, Fusarium graminearum, and Fusarium verticillioides), and inhibitory activity on enzymes (acetylcholinesterase, tyrosinase, α-amylase, and α-glucosidase). All the tested compounds showed weak radical scavenging activity, while antifungal activity strongly depended on the tested concentration and fungal species. Biflavonoids, especially ginkgetin and isoginkgetin, proved to be potent acetylcholinesterase inhibitors, whereas monomeric flavonoids showed higher tyrosinase inhibitory activity than the tested 3'-8″-biflavones. Amentoflavone proved to be a potent α-amylase and α-glucosidase inhibitor, and in general, 3'-8″-biflavones showed a stronger inhibitory potential on these enzymes than their monomeric subunits. Thus, we can conclude that 3'-8″-dimerization enhanced acetylcholinesterase, α-amylase, and α-glucosidase activities, but the activity also depends on the number of hydroxyl and methoxy groups in the structure of the compound.
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Affiliation(s)
- Iva Jurčević Šangut
- Department of Food Technology, University North, 48000 Koprivnica, Croatia; (I.J.Š.); (B.Š.)
| | - Bojan Šarkanj
- Department of Food Technology, University North, 48000 Koprivnica, Croatia; (I.J.Š.); (B.Š.)
| | - Erna Karalija
- Department for Biology, Faculty of Science, University of Sarajevo, 71000 Sarajevo, Bosnia and Herzegovina;
| | - Dunja Šamec
- Department of Food Technology, University North, 48000 Koprivnica, Croatia; (I.J.Š.); (B.Š.)
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14
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Tang F, Xu Y, Gao E, Zhang W, Zhang F, Xiang Y, Xu L, Dong F. Amentoflavone attenuates cell proliferation and induces ferroptosis in human gastric cancer by miR-496/ATF2 axis. Chem Biol Drug Des 2023; 102:782-792. [PMID: 37455326 DOI: 10.1111/cbdd.14288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/14/2023] [Accepted: 06/26/2023] [Indexed: 07/18/2023]
Abstract
Amentoflavone (AF) is a natural multifunctional biflavonoid that has been revealed to possess multiple biological activities, including anticancer activity. Here, this work focused on exploring the functions and mechanism of AF in gastric cancer (GC). Levels of genes and proteins were examined by quantitative real-time PCR and western blotting. Cell proliferation and cell death were analyzed using cell counting kit-8, colony formation, and lactate dehydrogenase (LDH) release assay, respectively. Cell ferroptosis was evaluated by detecting the levels of malondialdehyde (MDA), reduced glutathione (GSH), Fe2+ , and intracellular reactive oxygen species (ROS). The binding between miR-496 and activating transcription factor 2 (ATF2) was confirmed by using dual-luciferase reporter assay. Murine xenograft assay was conducted for in vivo experiments. The results showed that AF suppressed the proliferation and induced ferroptotic cell death in GC cells. MiR-496 expression was decreased in GC tissues and cells, and AF treatment increased miR-496 expression level in GC cells. Functionally, miR-496 inhibition reversed the inhibitory effects of AF on GC cell proliferation and promoting effects on ferroptotic cell death. Mechanistically, ATF2 was targeted by miR-496. ATF2 expression was increased in GC tissues and cells, which was decreased by AF treatment and subsequently rescued by miR-496 downregulation in GC cells. Moreover, miR-496 overexpression suppressed the proliferation and induced ferroptotic cell death in GC cells via targeting ATF2. In all, AF suppressed the proliferation and induced ferroptotic cell death in GC cells via miR-496/ATF2 axis, indicating a novel therapeutic approach for GC patients.
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Affiliation(s)
- Fengying Tang
- Department of Integrated Chinese and Western Medicine, Clinical major of Integrated Chinese and Western Medicine, First Clinical Medical College, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Yongpan Xu
- Department of Integrated Chinese and Western Medicine, Clinical major of Integrated Chinese and Western Medicine, First Clinical Medical College, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Erpeng Gao
- Gastroenterology Department, The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, China
| | - Wei Zhang
- Gastroenterology Department, The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, China
| | - Fengli Zhang
- Gastroenterology Department, The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, China
| | - Yi Xiang
- Gastroenterology Department, The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, China
| | - Lixiaoyuan Xu
- Gastroenterology Department, The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, China
| | - Fen Dong
- Internal Medicine-Oncology, The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, China
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15
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Romero-Benavides JC, Atiencie-Valarezo NC, Duarte-Casar R. Flavonoid Composition and Antioxidant Activity of Tragia volubilis L. Methanolic Extract. PLANTS (BASEL, SWITZERLAND) 2023; 12:3139. [PMID: 37687385 PMCID: PMC10490261 DOI: 10.3390/plants12173139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 08/27/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023]
Abstract
Several species from the genus Tragia L. in the family Euphorbiaceae are part of the ethnomedicine of traditional cultures, and have a variety of uses. Tragia volubilis L. is a species spread through tropical America and Africa with several ethnomedical uses, particularly for wound healing and reproductive issues. In this study, we assess the phytochemical composition and antioxidant activity of the methanolic extract of the aerial parts of T. volubilis collected in southern Ecuador. The phytochemical screening of the extract shows the preliminary presence of carbohydrates, alkaloids, flavonoids, and tannins. The extract shows an Antioxidant Activity Index of 1.14, interpreted as strong antioxidant activity. Four flavonoid compounds were isolated through chromatographic procedures and identified through NMR spectroscopy: avicularin, quercitrin, afzelin, and amentoflavone. The biological activity of these compounds matches the ethnopharmacological uses of the species. This is the first phytochemical study of T. volubilis and supports its traditional medicinal uses.
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Affiliation(s)
- Juan Carlos Romero-Benavides
- Departamento de Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, Loja 110108, Ecuador;
| | - Nora Cecilia Atiencie-Valarezo
- Departamento de Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, Loja 110108, Ecuador;
| | - Rodrigo Duarte-Casar
- Maestría en Química Aplicada, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, Loja 110108, Ecuador;
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Fang G, Li X, Yang F, Huang T, Qiu C, Peng K, Wang Z, Yang Y, Lan C. Amentoflavone mitigates doxorubicin-induced cardiotoxicity by suppressing cardiomyocyte pyroptosis and inflammation through inhibition of the STING/NLRP3 signalling pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 117:154922. [PMID: 37321078 DOI: 10.1016/j.phymed.2023.154922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 05/16/2023] [Accepted: 06/05/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND Doxorubicin (DOX) is a potent anticancer chemotherapeutic agent whose clinical application is substantially constrained by its cardiotoxicity. The pathophysiology of DOX-induced cardiotoxicity manifests as cardiomyocyte pyroptosis and inflammation. Amentoflavone (AMF) is a naturally occurring biflavone possessing anti-pyroptotic and anti-inflammatory properties. However, the mechanism through which AMF alleviates DOX-induced cardiotoxicity remains undetermined. PURPOSE This study aimed at investigating the role of AMF in alleviating DOX-induced cardiotoxicity. STUDY DESIGN AND METHODS To assess the in vivo effect of AMF, DOX was intraperitoneally administered into a mouse model to induce cardiotoxicity. To elucidate the underlying mechanisms, the activities of STING/NLRP3 were quantified using the NLRP3 agonist nigericin and the STING agonist amidobenzimidazole (ABZI). Primary cardiomyocytes isolated from neonatal Sprague-Dawley rats were treated with saline (vehicle) or DOX with or without AMF and/or ABZI. The echocardiogram, haemodynamics, cardiac injury markers, heart/body weight ratio, and pathological alterations were monitored; the STING/NLRP3 pathway-associated proteins were detected by western blot and cardiomyocyte pyroptosis was analysed by immunofluorescence staining of cleaved N-terminal GSDMD and scanning electron microscopy. Furthermore, we evaluated the potential of AMF in compromising the anticancer effects of DOX in human breast cancer cell lines. RESULTS AMF substantially alleviated cardiac dysfunction and reduced heart/body weight ratio and myocardial damage in mice models of DOX-induced cardiotoxicity. AMF effectively suppressed DOX-mediated upregulation of IL-1β, IL-18, TNF-α, and pyroptosis-related proteins, including NLRP3, cleaved caspase-1, and cleaved N-terminal GSDMD. The levels of apoptosis-related proteins, namely Bax, cleaved caspase-3, and BCL-2 were not affected. In addition, AMF inhibited STING phosphorylation in DOX-affected hearts. Intriguingly, the administration of nigericin or ABZI dampened the cardioprotective effects of AMF. The in vitro anti-pyroptotic effect of AMF was demonstrated in attenuating the DOX-induced reduction in cardiomyocyte cell viability, upregulation of cleaved N-terminal GSDMD, and pyroptotic morphology alteration at the microstructural level. AMF exhibited a synergistic effect with DOX to reduce the viability of human breast cancer cells. CONCLUSION AMF alleviates DOX-induced cardiotoxicity by suppressing cardiomyocyte pyroptosis and inflammation via inhibition of the STING/NLRP3 signalling pathway, thereby validating its efficacy as a cardioprotective agent.
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Affiliation(s)
- Guangyao Fang
- College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan, P.R. China.; Department of Cardiology, General Hospital of Western Theater Command, Chengdu, Sichuan, P.R. China
| | - Xiuchuan Li
- Department of Cardiology, General Hospital of Western Theater Command, Chengdu, Sichuan, P.R. China
| | - Fengyuan Yang
- Department of Nephrology, General Hospital of Western Theater Command, Chengdu, Sichuan, P.R. China
| | - Ting Huang
- Department of Medical Oncology, People's Hospital of Luotian County, Huanggang, Hubei, P.R. China
| | - Chenming Qiu
- Department of Burn and Plastic Surgery, General Hospital of Western Theater Command, Chengdu, Sichuan, P.R. China
| | - Ke Peng
- Department of Cardiology, General Hospital of Western Theater Command, Chengdu, Sichuan, P.R. China
| | - Ziran Wang
- Department of Orthopedics, 903rd Hospital of PLA, Hangzhou, Zhejiang, P.R. China
| | - Yongjian Yang
- College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan, P.R. China.; Department of Cardiology, General Hospital of Western Theater Command, Chengdu, Sichuan, P.R. China..
| | - Cong Lan
- College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan, P.R. China.; Department of Cardiology, General Hospital of Western Theater Command, Chengdu, Sichuan, P.R. China..
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17
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Tauchen J, Frankova A, Manourova A, Valterova I, Lojka B, Leuner O. Garcinia kola: a critical review on chemistry and pharmacology of an important West African medicinal plant. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2023:1-47. [PMID: 37359709 PMCID: PMC10205037 DOI: 10.1007/s11101-023-09869-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 04/03/2023] [Indexed: 06/28/2023]
Abstract
Garcinia kola Heckel (Clusiaceae) is a tree indigenous to West and Central Africa. All plant parts, but especially the seeds, are of value in local folklore medicine. Garcinia kola is used in treatment of numerous diseases, including gastric disorders, bronchial diseases, fever, malaria and is used to induce a stimulating and aphrodisiac effect. The plant is now attracting considerable interest as a possible source of pharmaceutically important drugs. Several different classes of compounds such as biflavonoids, benzophenones, benzofurans, benzopyran, vitamin E derivatives, xanthones, and phytosterols, have been isolated from G. kola, of which many appears to be found only in this species, such as garcinianin (found in seeds and roots), kolanone (fruit pulp, seeds, roots), gakolanone (stem bark), garcinoic acid, garcinal (both in seeds), garcifuran A and B, and garcipyran (all in roots). They showed a wide range of pharmacological activities (e.g. analgesic, anticancer, antidiabetic, anti-inflammatory, antimalarial, antimicrobial, hepatoprotective and neuroprotective effects), though this has only been confirmed in animal models. Kolaviron is the most studied compound and is perceived by many studies as the active principle of G. kola. However, its research is associated with significant flaws (e.g. too high doses tested, inappropriate positive control). Garcinol has been tested under better conditions and is perhaps showing more promising results and should attract deeper research interest (especially in the area of anticancer, antimicrobial, and neuroprotective activity). Human clinical trials and mechanism-of-action studies must be carried out to verify whether any of the compounds present in G. kola may be used as a lead in the drug development.
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Affiliation(s)
- Jan Tauchen
- Department of Food Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Prague, Czech Republic
| | - Adela Frankova
- Department of Food Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Prague, Czech Republic
| | - Anna Manourova
- Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences, Prague, Czech Republic
| | - Irena Valterova
- Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences, Prague, Czech Republic
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Bohdan Lojka
- Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences, Prague, Czech Republic
| | - Olga Leuner
- Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences, Prague, Czech Republic
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18
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Biernacka P, Adamska I, Felisiak K. The Potential of Ginkgo biloba as a Source of Biologically Active Compounds-A Review of the Recent Literature and Patents. Molecules 2023; 28:molecules28103993. [PMID: 37241734 DOI: 10.3390/molecules28103993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 04/28/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023] Open
Abstract
Ginkgo biloba is a relict tree species showing high resistance to adverse biotic and abiotic environmental factors. Its fruits and leaves have high medicinal value due to the presence of flavonoids, terpene trilactones and phenolic compounds. However, ginkgo seeds contain toxic and allergenic alkylphenols. The publication revises the latest research results (mainly from 2018-2022) regarding the chemical composition of extracts obtained from this plant and provides information on the use of extracts or their selected ingredients in medicine and food production. A very important section of the publication is the part in which the results of the review of patents concerning the use of Ginkgo biloba and its selected ingredients in food production are presented. Despite the constantly growing number of studies on its toxicity and interactions with synthetic drugs, its health-promoting properties are the reason for the interest of scientists and motivation to create new food products.
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Affiliation(s)
- Patrycja Biernacka
- Faculty of Food Science and Fisheries, Department of Food Science and Technology-West Pomeranian University of Technology, 70-310 Szczecin, Poland
| | - Iwona Adamska
- Faculty of Food Science and Fisheries, Department of Food Science and Technology-West Pomeranian University of Technology, 70-310 Szczecin, Poland
| | - Katarzyna Felisiak
- Faculty of Food Science and Fisheries, Department of Food Science and Technology-West Pomeranian University of Technology, 70-310 Szczecin, Poland
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Naomi R, Rusli RNM, Huat TS, Embong H, Bahari H, Kamaruzzaman MA. Early Intervention of Elateriospermum tapos Yoghurt in Obese Dams Mitigates Intergenerational Cognitive Deficits and Thigmotactic Behaviour in Male Offspring via the Modulation of Metabolic Profile. Nutrients 2023; 15:nu15061523. [PMID: 36986254 PMCID: PMC10052004 DOI: 10.3390/nu15061523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/19/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
Maternal obesity is an intergenerational vicious cycle and one of the primary causes of cognitive deficits and high anxiety levels in offspring, which often manifest independently of sex. It is proven that curbing the intergenerational inheritance of obesity through early intervention during the gestation period has a positive outcome on the body composition, cognitive function, and anxiety level of the offspring. A recent discovery shows that the consumption of Elateriospermum tapos (E. tapos) seed extract modulates body mass and ameliorates stress hormones in obese dams, while a probiotic bacterial strain can cross the placenta and boost a child's memory. Thus, we speculate that probiotics are the best medium to integrate plant extract (E. tapos extract) to access the effect on the child's cognition. Thus, this study aimed to investigate the early intervention of E. tapos yoghurt in obese dams in the cognition and anxiety levels of male offspring. In this study, 40 female rats were fed with a high-fat diet (HFD) to induce obesity before pregnancy, while another 8 rats were fed with standard rat pellets for 16 weeks. Upon successful copulation, treatment was initiated for the obese dams up to the postnatal day (PND) 21. The groups included normal chow and saline (NS), HFD and saline (HS), HFD and yoghurt (HY), HFD and 5 mg/kg E. tapos yoghurt (HYT5), HFD and 50 mg/kg E. tapos yoghurt (HYT50), and HFD and 500 mg/kg E. tapos yoghurt (HYT500). All rats were euthanised on PND 21, and the body mass index (BMI), Lee index, and waist circumference were measured for the male offspring. Hippocampal-dependent memory tests and open field tests were conducted to access for cognition and anxiety status. Fasting blood glucose (FBG), total fat (%), insulin, leptin, lipid profile, and antioxidant parameter on serum and hypothalamus (FRAP and GSH) were accessed on PND 21. The result shows male offspring of 50 mg/kg-supplemented obese dams have comparable total fat (%), lipid profile, insulin level, FBG level, plasma insulin level, recognition index, low anxiety level, and improved hypothalamic FRAP and GSH levels to the normal group. In conclusion, this study highlights that the effect of early intervention of our novel formulation of E. tapos yoghurt in obese dams alleviates cognitive deficits and anxiety in male offspring by modulating metabolic profiles at the dose of 50 mg/kg.
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Affiliation(s)
- Ruth Naomi
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Rusydatul Nabila Mahmad Rusli
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Teoh Soo Huat
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang 13200, Malaysia
| | - Hashim Embong
- Department of Emergency Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia
| | - Hasnah Bahari
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Mohd Amir Kamaruzzaman
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latiff, Cheras, Kuala Lumpur 56000, Malaysia
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20
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Tuli HS, Joshi H, Vashishth K, Ramniwas S, Varol M, Kumar M, Rani I, Rani V, Sak K. Chemopreventive mechanisms of amentoflavone: recent trends and advancements. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:865-876. [PMID: 36773053 DOI: 10.1007/s00210-023-02416-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 02/01/2023] [Indexed: 02/12/2023]
Abstract
In parallel to the continuous rise of new cancer cases all over the world, the interest of scientific community in natural anticancer agents has steadily been increased. In the past decades, numerous phytochemicals have been shown to possess a strong anticancer potential in preclinical conditions. One of such interesting compounds, derived from different plants such as ginkgo, hinoki, and St. John`s wort, is amentoflavone. In this review article, a wide range of anticancer properties of this natural biflavone are described, revealing its ability to suppress the malignant growth and lead tumor cells to apoptotic death, besides impeding also angiogenic and metastatic processes. Therefore, amentoflavone can be considered a potential lead compound for the development of novel anticancer drug candidates, definitely deserving further in vivo studies and also initiation of clinical trials. It is expected that this plant biflavone might be important, either alone or in combination with the current standard chemotherapeutics, in providing some alleviation for the continuous rise of global cancer burden.
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Affiliation(s)
- Hardeep Singh Tuli
- Department of Biotechnology, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar (Deemed to Be University), Ambala, Mullana, 133207, India
| | - Hemant Joshi
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Kanupriya Vashishth
- Advance Cardiac Centre Department of Cardiology, Post Graduate Institute of Medical Education and Research (PGIMER) Chandigarh, Chandigarh, 160012, India
| | - Seema Ramniwas
- University Centre for Research and Development, University Institute of Pharmaceutical Sciences, Chandigarh University, Mohali, 140413, India
| | - Mehmet Varol
- Department of Molecular Biology and Genetics, Faculty of Science, Mugla Sitki Kocman University, Mugla, Turkey
| | - Manoj Kumar
- Department of Chemistry, Maharishi Markandeshwar University Sadopur, Ambala, 134007, India
| | - Isha Rani
- Department of Biochemistry, Maharishi Markandeshwar College of Medical Sciences and Research (MMCMSR), Sadopur, 134007, Ambala, India
| | - Vibha Rani
- Department of Biotechnology, Jaypee Institute of Information Technology, A-10, Sector-62, Noida, 201307, Uttar Pradesh, India
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A Comprehensive Review on Anti-Inflammatory Response of Flavonoids in Experimentally-Induced Epileptic Seizures. Brain Sci 2023; 13:brainsci13010102. [PMID: 36672083 PMCID: PMC9856497 DOI: 10.3390/brainsci13010102] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/23/2022] [Accepted: 12/31/2022] [Indexed: 01/06/2023] Open
Abstract
Flavonoids, a group of natural compounds with phenolic structure, are becoming popular as alternative medicines obtained from plants. These compounds are reported to have various pharmacological properties, including attenuation of inflammatory responses in multiple health issues. Epilepsy is a disorder of the central nervous system implicated with the activation of the inflammatory cascade in the brain. The aim of the present study was to summarize the role of various neuroinflammatory mediators in the onset and progression of epilepsy, and, thereafter, to discuss the flavonoids and their classes, including their biological properties. Further, we highlighted the modulation of anti-inflammatory responses achieved by these substances in different forms of epilepsy, as evident from preclinical studies executed on multiple epilepsy models. Overall, the review summarizes the available evidence of the anti-inflammatory potential of various flavonoids in epilepsy.
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Review and Chemoinformatic Analysis of Ferroptosis Modulators with a Focus on Natural Plant Products. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020475. [PMID: 36677534 PMCID: PMC9862590 DOI: 10.3390/molecules28020475] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 12/23/2022] [Accepted: 12/24/2022] [Indexed: 01/06/2023]
Abstract
Ferroptosis is a regular cell death pathway that has been proposed as a suitable therapeutic target in cancer and neurodegenerative diseases. Since its definition in 2012, a few hundred ferroptosis modulators have been reported. Based on a literature search, we collected a set of diverse ferroptosis modulators and analyzed them in terms of their structural features and physicochemical and drug-likeness properties. Ferroptosis modulators are mostly natural products or semisynthetic derivatives. In this review, we focused on the abundant subgroup of polyphenolic modulators, primarily phenylpropanoids. Many natural polyphenolic antioxidants have antiferroptotic activities acting through at least one of the following effects: ROS scavenging and/or iron chelation activities, increased GPX4 and NRF2 expression, and LOX inhibition. Some polyphenols are described as ferroptosis inducers acting through the generation of ROS, intracellular accumulation of iron (II), or the inhibition of GPX4. However, some molecules have a dual mode of action depending on the cell type (cancer versus neural cells) and the (micro)environment. The latter enables their successful use (e.g., apigenin, resveratrol, curcumin, and EGCG) in rationally designed, multifunctional nanoparticles that selectively target cancer cells through ferroptosis induction.
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23
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Behmard E, Ghasemian A, Barzegari E, Farjadfar A, Kouhpayeh A, Najafipour S. Advanced simulations and screening to repurposing a 3C protease inhibitor against the rupintrivir-resistant human norovirus-induced gastroenteritis. J Mol Graph Model 2023; 118:108345. [PMID: 36308946 DOI: 10.1016/j.jmgm.2022.108345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/19/2022] [Accepted: 09/23/2022] [Indexed: 11/06/2022]
Abstract
Human norovirus (HuNoV) causes acute viral gastroenteritis in all age groups, and dehydration and severe diarrhea in the elderly. The World Health Organization reports ∼1.45 million deaths from acute gastroenteritis annually in the world. Rupintrivir, an inhibitory medicine against the human rhinovirus C3 protease, has been reported to inhibit HuNoV 3C protease. However, several HuNoV 3C protease mutations have been revealed to reduce the susceptibility of HuNoV to rupintrivir. The structural details behind rupintrivir-resistance of these single-point mutations (A105V and I109V) are not still clear. Hence, in this study, a combination of computational techniques were used to determine the rupintrivir-resistance mechanism and to propose an inhibitor against wild-type and mutant HuNoV 3C protease through structure-based virtual screening. Dynamic structural results indicated the unstable binding of rupintrivir at the cleft binding site of the wild-type and mutant 3C proteases, leading to its detachment. Our findings presented that the domain II of the HuNoV 3C protease had a critical role in binding of inhibitory molecules. Binding energy computations, steered molecular dynamics and umbrella sampling simulations confirmed that amentoflavone, the novel suggested inhibitor, strongly binds to the cleft site of all protease models and has a good structural stability in the complex system along the molecular dynamic simulations. Our in silico study proposed the selected compound as a potential inhibitor against the HuNoV 3C protease. However, additional experimental and clinical studies are required to corroborate the therapeutic efficacy of the compound.
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Affiliation(s)
- Esmaeil Behmard
- School of Advanced Technologies in Medicine, Fasa University of Medical Sciences, Fasa, Iran.
| | - Abdolmajid Ghasemian
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Ebrahim Barzegari
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Akbar Farjadfar
- Department of Medical Biotechnology, Fasa University of Medical Sciences, Fasa, Iran
| | - Amin Kouhpayeh
- Department of Pharmacology, Faculty of Medicine, Fasa University of Medical Sciences, Fasa, Iran.
| | - Sohrab Najafipour
- School of Advanced Technologies in Medicine, Fasa University of Medical Sciences, Fasa, Iran.
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Guerrero-Rodríguez SL, Mata-Cruz C, Pérez-Tapia SM, Velasco-Velázquez MA. Role of CD36 in cancer progression, stemness, and targeting. Front Cell Dev Biol 2022; 10:1079076. [PMID: 36568966 PMCID: PMC9772993 DOI: 10.3389/fcell.2022.1079076] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 11/24/2022] [Indexed: 12/14/2022] Open
Abstract
CD36 is highly expressed in diverse tumor types and its expression correlates with advanced stages, poor prognosis, and reduced survival. In cancer cells, CD36: 1) increases fatty acid uptake, reprogramming lipid metabolism; 2) favors cancer cell proliferation, and 3) promotes epithelial-mesenchymal transition. Furthermore, CD36 expression correlates with the expression of cancer stem cell markers and CD36+ cancer cells display increased stemness functional properties, including clonogenicity, chemo- and radioresistance, and metastasis-initiating capability, suggesting CD36 is a marker of the cancer stem cell population. Thus, CD36 has been pointed as a potential therapeutic target in cancer. At present, at least three different types of molecules have been developed for reducing CD36-mediated functions: blocking monoclonal antibodies, small-molecule inhibitors, and compounds that knock-down CD36 expression. Herein, we review the role of CD36 in cancer progression, its participation in stemness control, as well as the efficacy of reported CD36 inhibitors in cancer cell cultures and animal models. Overall, the evidence compiled points that CD36 is a valid target for the development of new anti-cancer therapies.
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Affiliation(s)
| | - Cecilia Mata-Cruz
- Pharmacology Department, School of Medicine, Universidad Nacional Autónoma de México, Mexico City, Mexico,Graduate Program in Biochemical Sciences, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Sonia M. Pérez-Tapia
- Research and Development in Biotherapeutics Unit, National School of Biological Sciences, National Polytechnic Institute, Mexico City, Mexico,National Laboratory for Specialized Services of Investigation Development and Innovation (I+D+i) for Pharma Chemicals and Biotechnological products LANSEIDI-FarBiotec-CONACyT, Mexico City, Mexico,Immunology Department, National School of Biological Sciences, National Polytechnic Institute, Mexico City, Mexico
| | - Marco A. Velasco-Velázquez
- Pharmacology Department, School of Medicine, Universidad Nacional Autónoma de México, Mexico City, Mexico,*Correspondence: Marco A. Velasco-Velázquez,
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Amentoflavone Exerts Anti-Neuroinflammatory Effects by Inhibiting TLR4/MyD88/NF- κB and Activating Nrf2/HO-1 Pathway in Lipopolysaccharide-Induced BV2 Microglia. Mediators Inflamm 2022; 2022:5184721. [PMID: 36523959 PMCID: PMC9747320 DOI: 10.1155/2022/5184721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 09/27/2022] [Accepted: 10/17/2022] [Indexed: 12/12/2022] Open
Abstract
Background Amentoflavone, a natural biflavone, exerts anti-inflammation, antioxidation, and antiapoptosis effects on many diseases. However, the mechanism of amentoflavone on neuroinflammation-related diseases has not been comprehensively examined clearly. Methods BV2 microglial cells were treated with amentoflavone (10 μM), followed by lipopolysaccharide (LPS). Microglial activation and migration ability and the expression of proinflammatory cytokines and other signaling proteins were determined using immunohistochemistry, immunofluorescence, quantitative real-time polymerase chain reaction, Western blotting, enzyme-linked immunosorbent assay, and wound-healing assays. Results Amentoflavone restored LPS-induced microglia activation, migration, and inflammation response which depends on regulating toll-like receptor 4 (TLR4)/myeloid differentiation factor 88 (MyD88)/nuclear factor kappa B (NF-κB) pathway. In addition, amentoflavone also enhanced nuclear factor erythroid 2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1) levels in LPS-treated BV2 microglial cells. Conclusions Amentoflavone ameliorated LPS-induced neuroinflammatory response and oxidative stress in BV2 microglia. These data provide new insight into the mechanism of amentoflavone in the treatment of neuroinflammation-related diseases. Therefore, amentoflavone may be a potential therapeutic option for neurological disorders.
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Sheng J, Zhang S, Wu L, Kumar G, Liao Y, GK P, Fan H. Inhibition of phosphodiesterase: A novel therapeutic target for the treatment of mild cognitive impairment and Alzheimer's disease. Front Aging Neurosci 2022; 14:1019187. [PMID: 36268188 PMCID: PMC9577554 DOI: 10.3389/fnagi.2022.1019187] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 09/05/2022] [Indexed: 11/13/2022] Open
Abstract
Alzheimer's disease (AD) is the most common form of dementia and is ranked as the 6th leading cause of death in the US. The prevalence of AD and dementia is steadily increasing and expected cases in USA is 14.8 million by 2050. Neuroinflammation and gradual neurodegeneration occurs in Alzheimer's disease. However, existing medications has limitation to completely abolish, delay, or prevent disease progression. Phosphodiesterases (PDEs) are large family of enzymes to hydrolyze the 3'-phosphodiester links in cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP) in signal-transduction pathways for generation of 5'-cyclic nucleotides. It plays vital role to orchestrate several pharmacological activities for proper cell functioning and regulating the levels of cAMP and cGMP. Several evidence has suggested that abnormal cAMP signaling is linked to cognitive problems in neurodegenerative disorders like AD. Therefore, the PDE family has become a widely accepted and multipotential therapeutic target for neurodegenerative diseases. Notably, modulation of cAMP/cGMP by phytonutrients has a huge potential for the management of AD. Natural compounds have been known to inhibit phosphodiesterase by targeting key enzymes of cGMP synthesis pathway, however, the mechanism of action and their therapeutic efficacy has not been explored extensively. Currently, few PDE inhibitors such as Vinpocetine and Nicergoline have been used for treatment of central nervous system (CNS) disorders. Considering the role of flavonoids to inhibit PDE, this review discussed the therapeutic potential of natural compounds with PDE inhibitory activity for the treatment of AD and related dementia.
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Affiliation(s)
- Jianwen Sheng
- Department of Gastroenterology, The People’s Hospital of Yichun City, Yichun, China
| | - Shanjin Zhang
- Department of Gastroenterology, The People’s Hospital of Yichun City, Yichun, China
| | - Lule Wu
- Department of Gastroenterology, The People’s Hospital of Yichun City, Yichun, China
| | - Gajendra Kumar
- Department of Neuroscience, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
| | - Yuanhang Liao
- Department of Gastroenterology, The People’s Hospital of Yichun City, Yichun, China
| | - Pratap GK
- Department of Biochemistry, Davangere University, Davangere, India
| | - Huizhen Fan
- Department of Gastroenterology, The People’s Hospital of Yichun City, Yichun, China
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Alherz FA, El-Masry TA, Negm WA, El-Kadem AH. Potential cardioprotective effects of Amentoflavone in doxorubicin-induced cardiotoxicity in mice. Biomed Pharmacother 2022; 154:113643. [PMID: 36942597 DOI: 10.1016/j.biopha.2022.113643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/22/2022] [Accepted: 08/31/2022] [Indexed: 11/21/2022] Open
Abstract
Doxorubicin (DOX) is an available chemotherapeutic drug for treating various tumors. However, its effectiveness is limited by cardiotoxicity. Amentoflavone (AMF), a natural biflavonoid separated from Cycas thouarsii ethyl acetate fraction, displays promising anticancer, anti-inflammatory, and antioxidant effects. Thus, our research aims to explore whether AMF could boost cardioprotective effects against DOX cardiotoxicity and reveal the potential underlying mechanisms of cardioprotection. Mice were classified into four groups; Normal control, Untreated DOX group, and DOX groups treated with AMF (40 and 80 mg/kg, respectively) intraperitoneal injection daily for four days before doxorubicin administration and for additional three days following DOX administration to assess cardiotoxicity. Echocardiography showed that AMF 80 treated group was protected from DOX cardiotoxicity. Additionally, it alleviated histopathological structural alterations and effectively restored heart weight and body weight ratio. These effects were confirmed biochemically by a substantially reduced serum creatine kinase-MB (CK-MB) and aspartate aminotransferase (AST) levels. AMF effectively restored nuclear respiratory factor-1(NRF-1), mitochondrial transcription factor A (TFAM), and normalized heat shock protein - 27(HSP-27) expression levels compared to the DOX group. Moreover, AMF mitigated oxidative stress conditions and significantly suppressed NADPH oxidase (NOX) expression levels. It also showed significant anti-inflammatory effects via suppressing interleukin-6 (IL-6) expression and decreasing nuclear factor Kabba B (NF-κb) immune-staining. In addition, AMF markedly reduced FAS ligand (FASL) expression and p53 immune staining in cardiac tissue. This study is the first for the in vivo potential beneficial effects of AMF against acute DOX cardiotoxicity, possibly via exerting antioxidant, anti-inflammatory, and anti-apoptotic effects and restoring mitochondrial function.
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Affiliation(s)
- Fatemah A Alherz
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia.
| | - Thanaa A El-Masry
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta 31527, Egypt.
| | - Walaa A Negm
- Department of Pharmacognosy, Faculty of Pharmacy, Tanta University, Tanta 31527, Egypt.
| | - Aya H El-Kadem
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta 31527, Egypt.
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Sun K, Xie R, Yi Z, Yin L, Guan Y, Wang L, Wang Y, Ding X, Luan Y, Liu H, Fan Y. Amentoflavone impairs the reconsolidated fear memories through inhibition of ERK pathway. Biochem Biophys Res Commun 2022; 622:8-14. [PMID: 35841770 DOI: 10.1016/j.bbrc.2022.07.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/25/2022] [Accepted: 07/07/2022] [Indexed: 11/02/2022]
Abstract
Post-traumatic stress disorder (PTSD) is a pathological fear memory-related disease. The persistence of pathological fearful memories is one of the most characteristic symptoms of PTSD. However, this can be eliminated by intervening in reconsolidation. Inflammation is intimately involved in the pathophysiologic progression of PTSD. Amentoflavone (AF) has anti-inflammatory effects. However, the effect of AF on fear memory reconsolidation remains unclear. In the present series of experiments, the CFC paradigm of rats were constructed. This was followed by AF administration immediately after exposure to the conditioning chamber to observe the maintenance of fear memory. Finally, a Western blot for the amygdala was used to explore the possible molecular biological mechanisms of AF affecting animal behavior. The findings suggest that re-exposure to the conditioning chamber for retrieval of CFC memory followed by immediate intragastric AF administration in rats attenuated the fear response for at least 14 days. In addition, the Western blot results show that the CFC memory intervention effect of AF administration during the reconsolidation phase may be related to the ERK signaling pathway inhibition. In general, the administration of AF in the reconsolidation phase to inhibit neuroinflammation can block the reconsolidation process and disrupt fear memory retention in the long term, at least in part through ERK pathway.
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Affiliation(s)
- Kuisheng Sun
- School of Laboratory Medicine, Weifang Medical University, Weifang, Shandong, China.
| | - Ruizhu Xie
- Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Zhengjun Yi
- School of Laboratory Medicine, Weifang Medical University, Weifang, Shandong, China
| | - Liqian Yin
- School of Laboratory Medicine, Weifang Medical University, Weifang, Shandong, China
| | - Yan Guan
- School of Laboratory Medicine, Weifang Medical University, Weifang, Shandong, China
| | - Lujuan Wang
- School of Laboratory Medicine, Weifang Medical University, Weifang, Shandong, China
| | - Ying Wang
- School of Laboratory Medicine, Weifang Medical University, Weifang, Shandong, China
| | - Xiaoyan Ding
- School of Laboratory Medicine, Weifang Medical University, Weifang, Shandong, China
| | - Yaning Luan
- School of Clinical Medicine, Weifang Medical University, Weifang, Shandong, China
| | - Huijie Liu
- School of Laboratory Medicine, Weifang Medical University, Weifang, Shandong, China
| | - Yuhan Fan
- School of Public Health, Weifang Medical University, Weifang, Shandong, China
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Han BH, Cofell B, Everhart E, Humpal C, Kang SS, Lee SK, Kim-Han JS. Amentoflavone Promotes Cellular Uptake and Degradation of Amyloid-Beta in Neuronal Cells. Int J Mol Sci 2022; 23:ijms23115885. [PMID: 35682567 PMCID: PMC9180170 DOI: 10.3390/ijms23115885] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/20/2022] [Accepted: 05/21/2022] [Indexed: 02/04/2023] Open
Abstract
Deposition of fibrillar forms of amyloid β-protein (Aβ) is commonly found in patients with Alzheimer's disease (AD) associated with cognitive decline. Impaired clearance of Aβ species is thought to be a major cause of late-onset sporadic AD. Aβ secreted into the extracellular milieu can be cleared from the brain through multiple pathways, including cellular uptake in neuronal and non-neuronal cells. Recent studies have showed that the naturally-occurring polyphenol amentoflavone (AMF) exerts anti-amyloidogenic effects. However, its effects on metabolism and cellular clearance of Aβ remain to be tested. In the present study, we demonstrated that AMF significantly increased the cellular uptake of both Aβ1-40 and Aβ1-42, but not inverted Aβ42-1 in mouse neuronal N2a cells. Though AMF promoted internalization of cytotoxic Aβ1-42, it significantly reduced cell death in our assay condition. Our data further revealed that the internalized Aβ is translocated to lysosomes and undergoes enzymatic degradation. The saturable kinetic of Aβ uptake and our pharmacologic experiments showed the involvement of receptor-mediated endocytosis, in part, through the class A scavenger receptors as a possible mechanism of action of AMF. Taken together, our findings indicate that AMF can lower the levels of extracellular Aβ by increasing their cellular uptake and clearance, suggesting the therapeutic potential of AMF for the treatment of AD.
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Affiliation(s)
- Byung Hee Han
- Department of Pharmacology, Kirksville College of Osteopathic Medicine, A.T. Still University of Health Sciences, Kirksville, MO 63501, USA; (B.C.); (E.E.); (C.H.); (J.S.K.-H.)
- Correspondence:
| | - Brooke Cofell
- Department of Pharmacology, Kirksville College of Osteopathic Medicine, A.T. Still University of Health Sciences, Kirksville, MO 63501, USA; (B.C.); (E.E.); (C.H.); (J.S.K.-H.)
| | - Emily Everhart
- Department of Pharmacology, Kirksville College of Osteopathic Medicine, A.T. Still University of Health Sciences, Kirksville, MO 63501, USA; (B.C.); (E.E.); (C.H.); (J.S.K.-H.)
| | - Courtney Humpal
- Department of Pharmacology, Kirksville College of Osteopathic Medicine, A.T. Still University of Health Sciences, Kirksville, MO 63501, USA; (B.C.); (E.E.); (C.H.); (J.S.K.-H.)
| | - Sam-Sik Kang
- College of Pharmacy, Seoul National University, Seoul 08826, Korea; (S.-S.K.); (S.K.L.)
| | - Sang Kook Lee
- College of Pharmacy, Seoul National University, Seoul 08826, Korea; (S.-S.K.); (S.K.L.)
| | - Jeong Sook Kim-Han
- Department of Pharmacology, Kirksville College of Osteopathic Medicine, A.T. Still University of Health Sciences, Kirksville, MO 63501, USA; (B.C.); (E.E.); (C.H.); (J.S.K.-H.)
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Šamec D, Karalija E, Dahija S, Hassan STS. Biflavonoids: Important Contributions to the Health Benefits of Ginkgo ( Ginkgo biloba L.). PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11101381. [PMID: 35631806 PMCID: PMC9143338 DOI: 10.3390/plants11101381] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/19/2022] [Accepted: 05/20/2022] [Indexed: 05/03/2023]
Abstract
Ginkgo (Ginkgo biloba L.) is one of the most distinctive plants, characterized by excellent resistance to various environmental conditions. It is used as an ornamental plant and is recognized as a medicinal plant in both traditional and Western medicine. Its bioactive potential is associated with the presence of flavonoids and terpene trilactones, but many other compounds may also have synergistic effects. Flavonoid dimers-biflavonoids-are important constituents of ginkgophytopharmaceuticals. Currently, the presence of 13 biflavonoids has been reported in ginkgo, of which amentoflavone, bilobetin, sciadopitysin, ginkgetin and isoginkgetin are the most common. Their role in plants remains unknown, but their bioactivity and potential role in the management of human health are better investigated. In this review, we have provided an overview of the chemistry, diversity and biological factors that influence the presence of biflavonoids in ginkgo, as well as their bioactive and health-related properties. We have focused on their antioxidant, anticancer, antiviral, antibacterial, antifungal and anti-inflammatory activities as well as their potential role in the treatment of cardiovascular, metabolic and neurodegenerative diseases. We also highlighted their potential toxicity and pointed out further research directions.
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Affiliation(s)
- Dunja Šamec
- Department of Food Technology, University North, Trga Dr. Žarka Dolinara 1, 48000 Koprivnica, Croatia
- Correspondence:
| | - Erna Karalija
- Department for Biology, Faculty of Science, University of Sarajevo, Zmaja od Bosne 33-35, 71000 Sarajevo, Bosnia and Herzegovina; (E.K.); (S.D.)
| | - Sabina Dahija
- Department for Biology, Faculty of Science, University of Sarajevo, Zmaja od Bosne 33-35, 71000 Sarajevo, Bosnia and Herzegovina; (E.K.); (S.D.)
| | - Sherif T. S. Hassan
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague, Czech Republic;
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Hou T, Yang M, Yan K, Fan X, Ci X, Peng L. Amentoflavone Ameliorates Carrageenan-Induced Pleurisy and Lung Injury by Inhibiting the NF-κB/STAT3 Pathways via Nrf2 Activation. Front Pharmacol 2022; 13:763608. [PMID: 35237153 PMCID: PMC8883043 DOI: 10.3389/fphar.2022.763608] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 01/21/2022] [Indexed: 02/01/2023] Open
Abstract
Many natural flavonoids can activate nuclear factor erythroid 2-related factor 2 (Nrf2), which is pivotal for alleviating various diseases related to inflammation and oxidative stress, including pleurisy. Amentoflavone (AMF), a biflavonoid extracted from many plants, has some beneficial bioactivities, especially anti-inflammatory and antioxidative activities. We aimed to investigate whether AMF protects against pleurisy and lung injury induced by carrageenan (Car) by activating Nrf2. Pleurisy was induced in wild-type (WT) and Nrf2-deficient (Nrf2-/-) mice. Then, pleural exudate and lung tissue were collected for biochemical analysis, H&E staining, immunocytochemistry and western blotting. Our results indicated that AMF protected against Car-induced pleurisy and lung injury. The Wright-Giemsa and H&E staining results showed that AMF alleviated inflammatory effusion and pathological injury. In addition, AMF decreased SOD and GSH depletion and MDA and MPO generation in the lung tissue of mice. AMF activated Nrf2 through keap-1 dissociation and subsequently increased heme oxygenase-1 (HO-1), NAD(P)H-quinone oxidoreductase 1 (NQO1), and γ-glutamylcysteine ligase (GCL) levels. Furthermore, AMF suppressed IL-1β and TNF-α levels and increased IL-10 levels in pleural exudate by blocking the proinflammatory NF-κB, signal transducer and activator of transcription 3 (STAT3) and extracellular signal-regulated kinase (ERK) pathways induced by Car. However, these antioxidative and anti-inflammatory effects were weakened in Nrf2-/- mice. Moreover, AMF failed to suppress the NF-κB and STAT3 pathways in Nrf2-/- mice. Our results demonstrated that AMF exerted anti-inflammatory and antioxidative effects in Car-induced lung injury and pleurisy in a Nrf2-dependent manner.
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Affiliation(s)
- Tianhua Hou
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, China
| | - Manshi Yang
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, China
| | - Kun Yan
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, China
| | - Xiaoye Fan
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, China
| | - Xinxin Ci
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
- *Correspondence: Xinxin Ci, ; Liping Peng,
| | - Liping Peng
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, China
- *Correspondence: Xinxin Ci, ; Liping Peng,
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