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Souza HCA, Souza MDA, Sousa CS, Viana EKA, Alves SKS, Marques AO, Ribeiro ASN, de Sousa do Vale V, Islam MT, de Miranda JAL, da Costa Mota M, Rocha JA. Molecular Docking and ADME-TOX Profiling of Moringa oleifera Constituents against SARS-CoV-2. Adv Respir Med 2023; 91:464-485. [PMID: 37987297 PMCID: PMC10660866 DOI: 10.3390/arm91060035] [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: 09/01/2023] [Revised: 10/06/2023] [Accepted: 10/11/2023] [Indexed: 11/22/2023]
Abstract
The SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2019) etiological agent, which has a high contagiousness and is to blame for the outbreak of acute viral pneumonia, is the cause of the respiratory disease COVID-19. The use of natural products grew as an alternative treatment for various diseases due to the abundance of organic molecules with pharmacological properties. Many pharmaceutical studies have focused on investigating compounds with therapeutic potential. Therefore, this study aimed to identify potential antiviral compounds from a popular medicinal plant called Moringa oleifera Lam. against the spike, Mpro, ACE2, and RBD targets of SARS-CoV-2. For this, we use molecular docking to identify the molecules with the greatest affinity for the targets through the orientation of the ligand with the receptor in complex. For the best results, ADME-TOX predictions were performed to evaluate the pharmacokinetic properties of the compounds using the online tool pkCSM. The results demonstrate that among the 61 molecules of M. oleifera, 22 molecules showed promising inhibition results, where the compound ellagic acid showed significant molecular affinity (-9.3 kcal.mol-1) in interaction with the spike protein. These results highlight the relevance of investigating natural compounds from M. oleifera as potential antivirals against SARS-CoV-2; however, additional studies are needed to confirm the antiviral activity of the compounds.
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Affiliation(s)
- Hellen Cris Araújo Souza
- Medicinal Chemistry and Biotechnology Research Group—QUIMEBIO, São Bernardo Science Center, Federal University of Maranhão UFMA, São Bernardo 65080-805, MA, Brazil; (H.C.A.S.); (M.D.A.S.); (C.S.S.); (E.K.A.V.); (S.K.S.A.); (A.O.M.); (A.S.N.R.); (V.d.S.d.V.); (M.d.C.M.); (J.A.R.)
| | - Maycon Douglas Araújo Souza
- Medicinal Chemistry and Biotechnology Research Group—QUIMEBIO, São Bernardo Science Center, Federal University of Maranhão UFMA, São Bernardo 65080-805, MA, Brazil; (H.C.A.S.); (M.D.A.S.); (C.S.S.); (E.K.A.V.); (S.K.S.A.); (A.O.M.); (A.S.N.R.); (V.d.S.d.V.); (M.d.C.M.); (J.A.R.)
| | - Cássio Silva Sousa
- Medicinal Chemistry and Biotechnology Research Group—QUIMEBIO, São Bernardo Science Center, Federal University of Maranhão UFMA, São Bernardo 65080-805, MA, Brazil; (H.C.A.S.); (M.D.A.S.); (C.S.S.); (E.K.A.V.); (S.K.S.A.); (A.O.M.); (A.S.N.R.); (V.d.S.d.V.); (M.d.C.M.); (J.A.R.)
| | - Edilanne Katrine Amparo Viana
- Medicinal Chemistry and Biotechnology Research Group—QUIMEBIO, São Bernardo Science Center, Federal University of Maranhão UFMA, São Bernardo 65080-805, MA, Brazil; (H.C.A.S.); (M.D.A.S.); (C.S.S.); (E.K.A.V.); (S.K.S.A.); (A.O.M.); (A.S.N.R.); (V.d.S.d.V.); (M.d.C.M.); (J.A.R.)
| | - Sabrina Kelly Silva Alves
- Medicinal Chemistry and Biotechnology Research Group—QUIMEBIO, São Bernardo Science Center, Federal University of Maranhão UFMA, São Bernardo 65080-805, MA, Brazil; (H.C.A.S.); (M.D.A.S.); (C.S.S.); (E.K.A.V.); (S.K.S.A.); (A.O.M.); (A.S.N.R.); (V.d.S.d.V.); (M.d.C.M.); (J.A.R.)
| | - Alex Oliveira Marques
- Medicinal Chemistry and Biotechnology Research Group—QUIMEBIO, São Bernardo Science Center, Federal University of Maranhão UFMA, São Bernardo 65080-805, MA, Brazil; (H.C.A.S.); (M.D.A.S.); (C.S.S.); (E.K.A.V.); (S.K.S.A.); (A.O.M.); (A.S.N.R.); (V.d.S.d.V.); (M.d.C.M.); (J.A.R.)
| | - Arthur Serejo Neves Ribeiro
- Medicinal Chemistry and Biotechnology Research Group—QUIMEBIO, São Bernardo Science Center, Federal University of Maranhão UFMA, São Bernardo 65080-805, MA, Brazil; (H.C.A.S.); (M.D.A.S.); (C.S.S.); (E.K.A.V.); (S.K.S.A.); (A.O.M.); (A.S.N.R.); (V.d.S.d.V.); (M.d.C.M.); (J.A.R.)
| | - Vanessa de Sousa do Vale
- Medicinal Chemistry and Biotechnology Research Group—QUIMEBIO, São Bernardo Science Center, Federal University of Maranhão UFMA, São Bernardo 65080-805, MA, Brazil; (H.C.A.S.); (M.D.A.S.); (C.S.S.); (E.K.A.V.); (S.K.S.A.); (A.O.M.); (A.S.N.R.); (V.d.S.d.V.); (M.d.C.M.); (J.A.R.)
| | - Muhammad Torequl Islam
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh;
| | - João Antônio Leal de Miranda
- Department of Medicine, Senador Helvidio Nunes de Barros Center, Federal University of Piauí (UFPI), Picos 64607-670, PI, Brazil
| | - Marcelo da Costa Mota
- Medicinal Chemistry and Biotechnology Research Group—QUIMEBIO, São Bernardo Science Center, Federal University of Maranhão UFMA, São Bernardo 65080-805, MA, Brazil; (H.C.A.S.); (M.D.A.S.); (C.S.S.); (E.K.A.V.); (S.K.S.A.); (A.O.M.); (A.S.N.R.); (V.d.S.d.V.); (M.d.C.M.); (J.A.R.)
| | - Jefferson Almeida Rocha
- Medicinal Chemistry and Biotechnology Research Group—QUIMEBIO, São Bernardo Science Center, Federal University of Maranhão UFMA, São Bernardo 65080-805, MA, Brazil; (H.C.A.S.); (M.D.A.S.); (C.S.S.); (E.K.A.V.); (S.K.S.A.); (A.O.M.); (A.S.N.R.); (V.d.S.d.V.); (M.d.C.M.); (J.A.R.)
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Bai HJ, Qi DY, Li HW, Wu Y. Assembly-Induced Emission Enhancement in Glutathione-Capped Bimetallic Gold and Copper Nanoclusters by Al 3+ Ions and Further Application in Myricetin Determination. Molecules 2023; 28:molecules28020758. [PMID: 36677816 PMCID: PMC9864343 DOI: 10.3390/molecules28020758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/31/2022] [Accepted: 01/07/2023] [Indexed: 01/15/2023] Open
Abstract
A significant emission enhancement (>100-fold) of glutathione-capped bimetallic gold and copper nanoclusters (AuCuNC@GSH) was achieved by assembling with Al3+ ions and by assembly-induced emission enhancement (AIEE). Further chelation of myricetin to Al3+ resulted in emission quenching of AuCuNC-Al3+, which was applied to specifically detect myricetin. Two linear responses were shown in the range of 0−1.5 μM and 1.5−50 μM, separately, leading to a low limit of detection at 8.7 nM. The method was successfully and accurately applied to myricetin determination in grape juice, which showed good application for real samples. Finally, the in-depth mechanism revealed that both the chelation of myricetin and Al3+ and the inner filter effect (IFE) between myricetin-Al3+ and AuCuNC-Al3+ greatly contributed to the quenching response of myricetin. Therefore, the present study provides an easy way to improve the fluorescence property of metal nanoclusters. Additionally, it supplies a cost-effective and easily performed approach to detect myricetin with high selectivity and sensitivity.
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Affiliation(s)
- Hao-Jie Bai
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2 Liutiao Road, Changchun 130023, China
| | - De-Yan Qi
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2 Liutiao Road, Changchun 130023, China
| | - Hong-Wei Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2 Liutiao Road, Changchun 130023, China
| | - Yuqing Wu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2 Liutiao Road, Changchun 130023, China
- Correspondence:
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Wang C, Yan Y, Huang M, Ma G, Wang L, Xie X, Xue W, Li X. Myricetin Derivative LP11 Targets Cucumber Mosaic Virus 2b Protein to Achieve In Vivo Antiviral Activity in Plants. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:15360-15370. [PMID: 36448924 DOI: 10.1021/acs.jafc.2c05536] [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: 06/17/2023]
Abstract
Cucumber mosaic virus (CMV) 2b protein plays a key role in the process of CMV infecting plants and symptom formation and is a potential molecular target for the control of this important plant virus. The exploitation of antiviral compounds is one of the strategies with the highest input: output ratio in plant protection. In this study, the CMV 2b recombinant protein was cloned, purified, and identified as the target protein by mass spectrometry. Subsequently, we carried out preliminary functional screening of the LP series of myricetin derivatives designed and synthesized in our laboratory and commercial antiviral compounds by microscale thermophoresis (MST), which showed that LP compounds LP4, LP11, LP13, and LP20 interacted well with CMV 2b, with dissociation constant (Kd) values of 1.39, 0.88, 1.52, and 1.77 μM, respectively. Among the commercially available antiviral compounds, ningnanmycin (NNM) was the most active, with a Kd value of 4.09 μM. Then, the strongest binding force to CMV 2b was identified to be from LP11 by isothermal titration calorimetry (ITC) experiments, with a Kd of 1.19 μM. Among the commercial compounds, NNM had the strongest binding force with CMV 2b, with a Kd of 4.62 μM. Through the screening of commercial compounds and LP series compounds by MST and ITC, LP11, NNM (positive control), LP16 (negative control), and the blank control group were selected to test the in vivo impact of LP11 on CMV. Specifically, the screened compounds were sprayed onto CMV-inoculated Nicotiana benthamiana plants to determine their impact on the regulation of CMV pathogenic gene expression, symptoms, and virus titer. The results showed that LP11 had a strong ability to inhibit CMV infection of tobacco at the transcriptional and translational levels. By mutating the CMV 2b protein, the 15th amino acid leucine and the 18th amino acid methionine at the N-terminal region were shown to be potential sites for binding to compound LP11. This finding provided a theoretical basis for screening and developing anti-CMV agents.
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Affiliation(s)
- Chen Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Yunlong Yan
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Min Huang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Guangming Ma
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Li Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, PR China
- Department of Plant Pathology, College of Agriculture, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Xin Xie
- Department of Plant Pathology, College of Agriculture, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Wei Xue
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Xiangyang Li
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, PR China
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The Extracellular Molecular Chaperone Clusterin Inhibits Amyloid Fibril Formation and Suppresses Cytotoxicity Associated with Semen-Derived Enhancer of Virus Infection (SEVI). Cells 2022; 11:cells11203259. [PMID: 36291126 PMCID: PMC9600718 DOI: 10.3390/cells11203259] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/07/2022] [Accepted: 10/13/2022] [Indexed: 11/17/2022] Open
Abstract
Clusterin is a glycoprotein present at high concentrations in many extracellular fluids, including semen. Its increased expression accompanies disorders associated with extracellular amyloid fibril accumulation such as Alzheimer’s disease. Clusterin is an extracellular molecular chaperone which prevents the misfolding and amorphous and amyloid fibrillar aggregation of a wide variety of unfolding proteins. In semen, amyloid fibrils formed from a 39-amino acid fragment of prostatic acid phosphatase, termed Semen-derived Enhancer of Virus Infection (SEVI), potentiate HIV infectivity. In this study, clusterin potently inhibited the in vitro formation of SEVI fibrils, along with dissociating them. Furthermore, clusterin reduced the toxicity of SEVI to pheochromocytoma-12 cells. In semen, clusterin may play an important role in preventing SEVI amyloid fibril formation, in dissociating SEVI fibrils and in mitigating their enhancement of HIV infection.
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Hu H, Hu Z, Zhang Y, Wan H, Yin Z, Li L, Liang X, Zhao X, Yin L, Ye G, Zou YF, Tang H, Jia R, Chen Y, Zhou H, Song X. Myricetin inhibits pseudorabies virus infection through direct inactivation and activating host antiviral defense. Front Microbiol 2022; 13:985108. [PMID: 36187970 PMCID: PMC9520584 DOI: 10.3389/fmicb.2022.985108] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 08/22/2022] [Indexed: 11/21/2022] Open
Abstract
Myricetin, a polyhydroxyflavone compound, is one of the main ingredients of various human foods and therefore also known as dietary flavonoids. Due to the continuous emergence of resistant strains of herpesviruses, novel control measures are required. In the present study, myricetin exhibited potent antiviral activity against pseudorabies virus (PRV), a model organism of herpesvirus. The suppression rate could reach up to 96.4% at a concentration of 500 μM in cells, and the 50% inhibitory concentration (IC50) was 42.69 μM. Moreover, the inhibitory activity was not attenuated by the increased amount of infective dose, and a significant reduction of intracellular PRV virions was observed by indirect immunofluorescence. A mode of action study indicated that myricetin could directly inactivate the virus in vitro, leading to inhibition of viral adsorption, penetration and replication in cells. In addition to direct killing effect, myricetin could also activate host antiviral defense through regulation of apoptosis-related gene expressions (Bcl-2, Bcl-xl, Bax), NF-κB and MAPK signaling pathways and cytokine gene expressions (IL-1α, IL-1β, IL-6, c-Jun, STAT1, c-Fos, and c-Myc). In PRV-infected mouse model, myricetin could enhance the survival rate by 40% at 5 days post infection, and viral loads in kidney, liver, lung, spleen, and brain were significantly decreased. The pathological changes caused by PRV infection were improved by myricetin treatment. The gene expressions of inflammatory factors (MCP-1, G-CSF, IL-1α, IL-1β, and IL-6) and apoptotic factors (Bcl-xl, Bcl-2, and Bax) were regulated by myricetin in PRV-infected mice. The present findings suggest that myricetin can effectively inhibit PRV infection and become a candidate for development of new anti-herpesvirus drugs.
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Affiliation(s)
- Huaiyue Hu
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Zhiqiang Hu
- Shandong New Hope Liuhe Agriculture and Animal Husbandry Technology Co., Ltd., Dezhou, China
| | - Yingying Zhang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Hongping Wan
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Zhongqiong Yin
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Lixia Li
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xiaoxia Liang
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xinghong Zhao
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Lizi Yin
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Gang Ye
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Yuan-Feng Zou
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Huaqiao Tang
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Renyong Jia
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Yaqin Chen
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Hao Zhou
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Department of Microbiology, NYU Grossman School of Medicine, New York, NY, United States
- *Correspondence: Hao Zhou,
| | - Xu Song
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Xu Song,
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Le MH, Taghuo-Kaptouom E, Schrader T. Molecular Tweezers – a new class of potent broad-spectrum antivirals against enveloped viruses. Chem Commun (Camb) 2022; 58:2954-2966. [DOI: 10.1039/d1cc06737k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new supramolecular approach to broad spectrum antivirals utilizes host guest chemistry between molecular tweezers and lysine/arginine as well as choline. Basic amino acids in amyloid-forming SEVI peptides (semen-derived enhancers...
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Gastroprotective Effect of Myricetin on Ethanol-Induced Acute Gastric Injury in Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:9968112. [PMID: 34630623 PMCID: PMC8497113 DOI: 10.1155/2021/9968112] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 08/23/2021] [Accepted: 08/25/2021] [Indexed: 01/10/2023]
Abstract
The flavonoid myricetin is abundant in vegetables and has various bioactive properties, including anti-inflammatory and antioxidative activities. In the present study, we explored the effects of myricetin on alcohol-induced gastric ulcer in a rat model. To induce gastric ulcer, absolute ethanol (5 mL/kg body weight) was orally administrated to each rat. The positive control and myricetin-treated groups were given oral doses of omeprazole (20 mg/kg) or myricetin (12 mg/kg), respectively, 1 hour prior to the administration of absolute alcohol. We found that pretreatment with myricetin significantly decreased alcohol-induced gastric ulcer, hemorrhage, hyperemia, and epithelial cell loss in the gastric mucosa. Myricetin pretreatment reduced the level of malondialdehyde (MDA) and increased that of total glutathione (GSSG/GSH) and superoxide dismutase (SOD) in gastric tissues. In addition, it elevated the expression levels of cyclooxygenase-1 (COX-1) and prostaglandin E2 (PGE2) and decreased the phosphorylation of nuclear factor kappa B (NF-κB). Together, these results indicate that myricetin effectively inhibits ethanol-induced acute gastric injury by preventing oxidative damage, stimulating PGE2 production, and inhibiting NF-κB activation. We suggest that myricetin may be an alternative treatment for gastric injury caused by alcohol intake.
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Myricetin: A review of the most recent research. Biomed Pharmacother 2020; 134:111017. [PMID: 33338751 DOI: 10.1016/j.biopha.2020.111017] [Citation(s) in RCA: 144] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 11/09/2020] [Accepted: 11/11/2020] [Indexed: 12/13/2022] Open
Abstract
Myricetin(MYR) is a flavonoid compound widely found in many natural plants including bayberry. So far, MYR has been proven to have multiple biological functions and it is a natural compound with promising research and development prospects. This review comprehensively retrieved and collected the latest pharmacological abstracts on MYR, and discussed the potential molecular mechanisms of its effects. The results of our review indicated that MYR has a therapeutic effect on many diseases, including tumors of different types, inflammatory diseases, atherosclerosis, thrombosis, cerebral ischemia, diabetes, Alzheimer's disease and pathogenic microbial infections. Furthermore, it regulates the expression of Hippo, MAPK, GSK-3β, PI3K/AKT/mTOR, STAT3, TLR, IκB/NF-κB, Nrf2/HO-1, ACE, eNOS / NO, AChE and BrdU/NeuN. MYR also enhances the immunomodulatory functions, suppresses cytokine storms, improves cardiac dysfunction, possesses an antiviral potential, can be used as an adjuvant treatment against cancer, cardiovascular injury and nervous system diseases, and it may be a potential drug against COVID-19 and other viral infections. Generally, this article provides a theoretical basis for the clinical application of MYR and a reference for its further use.
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Relaño-Rodríguez I, Muñoz-Fernández MÁ. Emergence of Nanotechnology to Fight HIV Sexual Transmission: The Trip of G2-S16 Polyanionic Carbosilane Dendrimer to Possible Pre-Clinical Trials. Int J Mol Sci 2020; 21:ijms21249403. [PMID: 33321835 PMCID: PMC7764023 DOI: 10.3390/ijms21249403] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/04/2020] [Accepted: 12/07/2020] [Indexed: 12/11/2022] Open
Abstract
Development of new, safe, and effective microbicides to prevent human immunodeficiency virus HIV sexual transmission is needed. Unfortunately, most microbicides proved ineffective to prevent the risk of HIV-infection in clinical trials. We are working with G2-S16 polyanionic carbosilane dendrimer (PCD) as a new possible vaginal topical microbicide, based on its short reaction times, wide availability, high reproducibility, and quantitative yields of reaction. G2-S16 PCD exerts anti-HIV activity at an early stage of viral replication, by blocking gp120/CD4/CCR5 interaction, and providing a barrier against infection for long periods of time. G2-S16 PCD was stable at different pH values, as well as in the presence of seminal fluids. It maintained the anti-HIV activity against R5/X4 HIV over time, did not generate any type of drug resistance, and retained the anti-HIV effect when exposed to semen-enhanced viral infection. Importantly, G2-S16 PCD did not modify vaginal microbiota neither in vitro or in vivo. Histopathological examination did not show vaginal irritation, inflammation, lesions, or damage in the vaginal mucosa, after administration of G2-S16 PCD at different concentrations and times in female mice and rabbit animal models. Based on these promising data, G2-S16 PCD could become a good, safe, and readily available candidate to use as a topical vaginal microbicide against HIV.
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Affiliation(s)
- Ignacio Relaño-Rodríguez
- Head Section of Immunology, Molecular Immunology Laboratory, General Universitary Hospital Gregorio Marañón, C/Dr. Esquerdo 46, 28007 Madrid, Spain;
| | - Maria Ángeles Muñoz-Fernández
- Head Section of Immunology, Molecular Immunology Laboratory, General Universitary Hospital Gregorio Marañón, C/Dr. Esquerdo 46, 28007 Madrid, Spain;
- Health Research Institute Gregorio Marañon (IiSGM), C/Dr. Esquerdo 46, 28007 Madrid, Spain
- Spanish HIV HGM BioBank, C/Dr. Esquerdo 46, 28007 Madrid, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), C/Dr. Esquerdo 46, 28007 Madrid, Spain
- Correspondence: or ; Tel.: +34-91-586-8565
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Efficacy and mechanism of actions of natural antimicrobial drugs. Pharmacol Ther 2020; 216:107671. [PMID: 32916205 DOI: 10.1016/j.pharmthera.2020.107671] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/02/2020] [Accepted: 09/03/2020] [Indexed: 02/07/2023]
Abstract
Microbial infections have significantly increased over the last decades, and the mortality rates remain unacceptably high. The emergence of new resistance patterns and the spread of new viruses challenge the eradication of infectious diseases. The declining efficacy of antimicrobial drugs has become a global public health problem. Natural products derived from natural sources, such as plants, animals, and microorganisms, have significant efficacy for the treatment of infectious diseases accompanied by less adverse effects, synergy, and ability to overcome drug resistance. As the Chinese female scientist Youyou Tu received the Nobel Prize for the antimalarial drug artemisinin, antimicrobial drugs developed from Traditional Chinese Medicine are expected to receive increasing attention again. This review summarizes the antimicrobial agents derived from natural products approved for nearly 20 years and describes their efficacy and mode of action. The aim of this unit is to review the current status of antimicrobial drugs from natural products in order to increase the value of natural products as a source of novel drug candidates for infectious diseases.
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Wang L, Wu H, Yang F, Dong W. The Protective Effects of Myricetin against Cardiovascular Disease. J Nutr Sci Vitaminol (Tokyo) 2020; 65:470-476. [PMID: 31902859 DOI: 10.3177/jnsv.65.470] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Cardiovascular disease (CVD) is the leading cause of death globally, except Africa, and poses a severe health burden worldwide. Both in vitro and in vivo studies have demonstrated the protective effects of myricetin for preventing CVD. For this review, we have assessed the literature from 2009 to 2019 at home and abroad to uncover the protective roles of myricetin for preventing CVD. Myricetin exhibits cardioprotective, anti-hypertensive, anti-atherosclerotic, anti-hyperglycemic, and anti-hyperlipidemic effects. In addition, myricetin may alleviate some of the complications caused by adult-onset diabetes. The combined functions of myricetin allow for the prevention of CVD. This review describes the possible therapeutic benefits of myricetin, along with its potential mechanisms of action, to support the clinical use of the myricetin for the prevention of CVD.
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Affiliation(s)
- Lu Wang
- Department of Pharmacy, Jinan Central Hospital Affiliated to Shandong University
| | - Haiyan Wu
- Department of Pharmacy, Jinan Central Hospital Affiliated to Shandong University
| | - Fei Yang
- Quality Department, Qilu Pharmaceutical Company
| | - Wenbin Dong
- Department of Pharmacy, Jinan Central Hospital Affiliated to Shandong University
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12
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Qiu M, Li Z, Chen Y, Guo J, Xu W, Qi T, Qiu Y, Pang J, Li L, Liu S, Tan S. Tolcapone Potently Inhibits Seminal Amyloid Fibrils Formation and Blocks Entry of Ebola Pseudoviruses. Front Microbiol 2020; 11:504. [PMID: 32425892 PMCID: PMC7203225 DOI: 10.3389/fmicb.2020.00504] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 03/09/2020] [Indexed: 01/10/2023] Open
Abstract
Ebola virus (EBOV), the causative pathogen of the deadly EBOV disease (EVD), can be transmitted via sexual transmission. Seminal amyloid fibrils have been found enhancers of EBOV infection. Currently, limited preventive vaccine or therapeutic is available to block EBOV infection through sexual intercourse. In this study, we repurpose tolcapone, a US Food and Drug Administration (FDA)-approved agent for Parkinson’s disease, as a potent inhibitor of seminal amyloid fibrils, among which semen-derived enhancer of viral infection (SEVI) is the best-characterized. Tolcapone binds to the amyloidogenic region of the SEVI precursor peptide (PAP248–286) and inhibits PAP248–286 aggregation by disrupting PAP248–286 oligomerization. In addition, tolcapone interacts with preformed SEVI fibrils and influences the activity of SEVI in promoting infection of pseudovirus (PsV) carrying the envelope glycoprotein (GP) of the EBOV Zaire or Sudan species (Zaire PsV and Sudan PsV, respectively). Tolcapone significantly antagonizes SEVI-mediated enhancement of both Zaire PsV and Sudan PsV binding to and subsequent internalization in HeLa cells. Of note, tolcapone is also effective in inhibiting the entry of both Zaire PsV and Sudan PsV. Tolcapone inhibits viral entry possibly through binding with critical residues in EBOV GP. Moreover, the combination of tolcapone with two small-molecule entry inhibitors, including bepridil and sertraline, exhibited synergistic anti-EBOV effects in semen. Collectively, as a bifunctional agent targeting the viral infection-enhancing amyloid and the virus itself during sexual intercourse, tolcapone can act as either a prophylactic topical agent to prevent the sexual transmission of EBOV or a therapeutic to treat EBOV infection.
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Affiliation(s)
- Mengjie Qiu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Zhaofeng Li
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Yuliu Chen
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Jiayin Guo
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Wei Xu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Tao Qi
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yurong Qiu
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jianxin Pang
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Lin Li
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,School of Pharmacy, Guangdong Medical University, Dongguan, China
| | - Shuwen Liu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Suiyi Tan
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
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13
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Bowen A, Sweeney EE, Fernandes R. Nanoparticle-Based Immunoengineered Approaches for Combating HIV. Front Immunol 2020; 11:789. [PMID: 32425949 PMCID: PMC7212361 DOI: 10.3389/fimmu.2020.00789] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 04/07/2020] [Indexed: 12/12/2022] Open
Abstract
Highly active antiretroviral therapy (HAART) serves as an effective strategy to combat HIV infections by suppressing viral replication in patients with HIV/AIDS. However, HAART does not provide HIV/AIDS patients with a sterilizing or functional cure, and introduces several deleterious comorbidities. Moreover, the virus is able to persist within latent reservoirs, both undetected by the immune system and unaffected by HAART, increasing the risk of a viral rebound. The field of immunoengineering, which utilizes varied bioengineering approaches to interact with the immune system and potentiate its therapeutic effects against HIV, is being increasingly investigated in HIV cure research. In particular, nanoparticle-based immunoengineered approaches are especially attractive because they offer advantages including the improved delivery and functionality of classical HIV drugs such as antiretrovirals and experimental drugs such as latency-reversing agents (LRAs), among others. Here, we present and discuss the current state of the field in nanoparticle-based immunoengineering approaches for an HIV cure. Specifically, we discuss nanoparticle-based methods for improving HAART as well as latency reversal, developing vaccines, targeting viral fusion, enhancing gene editing approaches, improving adoptively transferred immune-cell mediated reservoir clearance, and other therapeutic and prevention approaches. Although nanoparticle-based immunoengineered approaches are currently at the stage of preclinical testing, the promising findings obtained in these studies demonstrate the potential of this emerging field for developing an HIV cure.
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Affiliation(s)
- Allan Bowen
- The George Washington Cancer Center, The George Washington University, Washington, DC, United States
| | - Elizabeth E. Sweeney
- The George Washington Cancer Center, The George Washington University, Washington, DC, United States
| | - Rohan Fernandes
- The George Washington Cancer Center, The George Washington University, Washington, DC, United States
- Department of Medicine, The George Washington University, Washington, DC, United States
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14
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Hou Y, Zhang F, Lan J, Sun F, Li J, Li M, Song K, Wu X. Ultra-small micelles based on polyoxyl 15 hydroxystearate for ocular delivery of myricetin: optimization, in vitro, and in vivo evaluation. Drug Deliv 2019; 26:158-167. [PMID: 30822157 PMCID: PMC6407586 DOI: 10.1080/10717544.2019.1568624] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The aim was to develop a nanocarrier based on polyoxyl 15 hydroxystearate (Kolliphor® HS15, HS15) micelles for the solubility, stability, and ocular delivery of myricetin (Myr). An optimized ratio of HS15 and Myr was prepared to fabricate HS15-Myr micelle ophthalmic solution. Myr-encapsulating HS15 micelles (HS15-Myr micelles) were subjected to physicochemical characterizations. The chemical stability of Myr in HS15 micelles and storage stability of HS15-Myr micelle ophthalmic solutions were evaluated. In vitro parallel artificial membrane permeability assay and antioxidant activity of Myr in HS15 micelles were also measured. In vivo ocular tolerance, corneal permeation, and anti-inflammatory efficacy studies were conducted following ocular topical administration. HS15-Myr micelles were successfully prepared and presented transparent appearance with high encapsulation (96.12 ± 0.31%), ultra-small micelle size (a mean diameter of 12.17 ± 0.73 nm), uniform size distribution (polydispersity index [PDI] = 0.137 ± 0.013), and negative surface charge (- [4.28 ± 0.42] mV). Myr in HS15 micelle solution demonstrated higher aqueous stability than the free Myr solution among the accepted pH range for eyedrops. HS15-Myr micelle ophthalmic solution demonstrated high storage stability at 4 °C and 25 °C. HS15 micelles could significantly improve in vitro antioxidant activity and faster membrane permeation of Myr. No irritations or corneal damage were revealed in rabbit eyes after ocular administration of HS15-Myr micelle solution. In vivo corneal permeation study demonstrated that HS15-Myr micelles could penetrate the cornea efficiently in mouse eyes. Further, HS15-Myr micelles also demonstrated significant in vivo anti-inflammatory activity. It can be concluded that HS15 micelles are a potential ophthalmic delivery nanocarrier for poorly soluble drugs such as Myr.
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Affiliation(s)
- Yuzhen Hou
- a Department of Pharmacy, College of Chemical Engineering , Qingdao University of Science and Technology , Qingdao , China
| | - Fan Zhang
- a Department of Pharmacy, College of Chemical Engineering , Qingdao University of Science and Technology , Qingdao , China
| | - Jie Lan
- b Qingdao Eye Hospital, Shandong Eye Institute, Shandong Academy of Medical Sciences , Qingdao , China
| | - Fengyuan Sun
- a Department of Pharmacy, College of Chemical Engineering , Qingdao University of Science and Technology , Qingdao , China
| | - Jun Li
- b Qingdao Eye Hospital, Shandong Eye Institute, Shandong Academy of Medical Sciences , Qingdao , China
| | - Mengshuang Li
- a Department of Pharmacy, College of Chemical Engineering , Qingdao University of Science and Technology , Qingdao , China.,c Qingdao Women and Children's Hospital, Pharmacy Intravenous Admixture Services , Qingdao , China
| | - Kaichao Song
- a Department of Pharmacy, College of Chemical Engineering , Qingdao University of Science and Technology , Qingdao , China
| | - Xianggen Wu
- a Department of Pharmacy, College of Chemical Engineering , Qingdao University of Science and Technology , Qingdao , China
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15
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Inhibitory Mechanisms of Myricetin on Human and Rat Liver Cytochrome P450 Enzymes. Eur J Drug Metab Pharmacokinet 2019; 44:611-618. [DOI: 10.1007/s13318-019-00546-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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