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de Freitas Silva M, Juliet Cristancho Ortiz C, Ferreira Coelho L, Pruccoli L, Pagliarani B, Pisani L, Catto M, Poli G, Tuccinardi T, Cardoso Vilela F, Giusti-Paiva A, Amaral Alves M, Ribeiro de Souza HM, Tarozzi A, Silva Gontijo V, Viegas C. Synthesis and pharmacological evaluation of novel N-aryl-cinnamoyl-hydrazone hybrids designed as neuroprotective agents for the treatment of Parkinson's disease. Bioorg Chem 2024; 150:107587. [PMID: 38941700 DOI: 10.1016/j.bioorg.2024.107587] [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: 04/03/2024] [Revised: 06/14/2024] [Accepted: 06/21/2024] [Indexed: 06/30/2024]
Abstract
Molecular hybridization between structural fragments from the structures of curcumin (1) and resveratrol (2) was used as a designing tool to generate a new N-acyl-cinnamoyl-hydrazone hybrid molecular architecture. Twenty-eight new compounds were synthesized and evaluated for multifunctional activities related to Parkinson's disease (PD), including neuroprotection, antioxidant, metal chelating ability, and Keap1/Nrf2 pathway activation. Compounds 3b (PQM-161) and 3e (PQM-164) were highlighted for their significant antioxidant profile, acting directly as induced free radical stabilizers by DPPH and indirectly by modulating intracellular inhibition of t-BOOH-induced ROS formation in neuronal cells. The mechanism of action was determined as a result of Keap1/Nrf2 pathway activation by both compounds and confirmed by different experiments. Furthermore, compound 3e (PQM-164) exhibited a significant effect on the accumulation of α-synuclein and anti-inflammatory activity, leading to an expressive decrease in gene expression of iNOS, IL-1β, and TNF-α. Overall, these results highlighted compound 3e as a promising and innovative multifunctional drug prototype candidate for PD treatment.
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Affiliation(s)
- Matheus de Freitas Silva
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Federal University of Alfenas, Jovino Fernandes Sales Avenue 2600, 37133-840 Alfenas, Brazil; Department for Life Quality Studies, Alma Mater Studiorum-University of Bologna, Corso d'Augusto 237, 47921 Rimini, Italy
| | - Cindy Juliet Cristancho Ortiz
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Federal University of Alfenas, Jovino Fernandes Sales Avenue 2600, 37133-840 Alfenas, Brazil
| | - Letícia Ferreira Coelho
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Federal University of Alfenas, Jovino Fernandes Sales Avenue 2600, 37133-840 Alfenas, Brazil
| | - Letizia Pruccoli
- Department for Life Quality Studies, Alma Mater Studiorum-University of Bologna, Corso d'Augusto 237, 47921 Rimini, Italy
| | - Barbara Pagliarani
- Department for Life Quality Studies, Alma Mater Studiorum-University of Bologna, Corso d'Augusto 237, 47921 Rimini, Italy
| | - Leonardo Pisani
- Department of Pharmacy-Pharmaceutical Sciences, University Aldo Moro of Bari, Via E. Orabona 4, 70125 Bari, Italy
| | - Marco Catto
- Department of Pharmacy-Pharmaceutical Sciences, University Aldo Moro of Bari, Via E. Orabona 4, 70125 Bari, Italy
| | - Giulio Poli
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy
| | - Tiziano Tuccinardi
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy
| | | | - Alexandre Giusti-Paiva
- Department of Physiological Sciences, Center of Biological Sciences, Federal University of Santa Catarina, 88040-900 Florianopolis, Brazil
| | - Marina Amaral Alves
- LabMeta, Metabolomics Laboratory, Institute of Chemistry, Federal University of Rio de Janeiro, 21941-598 Rio de Janeiro, Brazil
| | - Hygor M Ribeiro de Souza
- LabMeta, Metabolomics Laboratory, Institute of Chemistry, Federal University of Rio de Janeiro, 21941-598 Rio de Janeiro, Brazil
| | - Andrea Tarozzi
- Department for Life Quality Studies, Alma Mater Studiorum-University of Bologna, Corso d'Augusto 237, 47921 Rimini, Italy
| | - Vanessa Silva Gontijo
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Federal University of Alfenas, Jovino Fernandes Sales Avenue 2600, 37133-840 Alfenas, Brazil
| | - Claudio Viegas
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Federal University of Alfenas, Jovino Fernandes Sales Avenue 2600, 37133-840 Alfenas, Brazil.
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Pruccoli L, Balducci M, Pagliarani B, Tarozzi A. Antioxidant and Neuroprotective Effects of Fucoxanthin and Its Metabolite Fucoxanthinol: A Comparative In Vitro Study. Curr Issues Mol Biol 2024; 46:5984-5998. [PMID: 38921028 PMCID: PMC11202671 DOI: 10.3390/cimb46060357] [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: 04/12/2024] [Revised: 05/04/2024] [Accepted: 06/12/2024] [Indexed: 06/27/2024] Open
Abstract
Fucoxanthin is the most abundant carotenoid found in marine brown algae that exhibits several healthy properties. Dietary fucoxanthin is metabolized in the intestine, plasma, and other tissues to various metabolites, including fucoxanthinol. In this regard, the contribution of fucoxanthinol to the healthy properties of its precursor, fucoxanthin, against pathogenetic events associated with neurodegenerative diseases remains unexplored. Here, we evaluated and compared the antioxidant and neuroprotective effects of the carotenoids fucoxanthin and fucoxanthinol in in vitro models of Alzheimer's (AD) and Parkinson's (PD) disease. Neuronal SH-SY5Y cells were used to evaluate the antioxidant properties of the carotenoids against ABTS radical in the membrane and cytoplasm and oxidative stress elicited by tert-butyl hydroperoxide using the 2',7'-dichlorodihydrofluorescein diacetate probe. We also assessed the ability of the carotenoids to increase the glutathione (GSH) and activate the Nrf2/Keap1/ARE pathway using the monochlorobimane probe and western blotting method, respectively. The neuroprotective effects of the carotenoids against the neurotoxicity generated by oligomers of Beta-Amyloid (1-42) peptide (OAβ) and 6-hydroxydopamine (6-OHDA), which are neurotoxins of AD and PD, respectively, were finally evaluated in the same neuronal cells using the thiazolyl blue tetrazolium bromide assay. Both carotenoids could reach the cytoplasm, which explains the mainly free radical scavenging activity at this level. Notably, fucoxanthinol had higher and lower antioxidant activity than fucoxanthin at extracellular and cellular levels. Although studied carotenoids exerted the ability to activate the Nrf2/Keap1/ARE pathway, leading to an increase of intracellular GSH, our results suggested that the antioxidant activity of the carotenoids could be mainly attributed to their radical scavenging activity in neuronal membrane and cytoplasm, where they accumulate. Fucoxanthinol also shared similar neuroprotective effects as fucoxanthin against the neurotoxicity generated by OAβ and 6-OHDA, suggesting a potential neuroprotective contribution to the action of fucoxanthin administered as a food supplement in in vivo experimental models. These results encourage further research to evaluate the bioavailability of fucoxanthinol and other metabolites of fucoxanthin at the brain level to elucidate the dietary neuroprotective potential of fucoxanthin.
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Affiliation(s)
- Letizia Pruccoli
- Department for Life Quality Studies, University of Bologna, 47921 Rimini, Italy; (L.P.); (M.B.); (B.P.)
| | - Martina Balducci
- Department for Life Quality Studies, University of Bologna, 47921 Rimini, Italy; (L.P.); (M.B.); (B.P.)
| | - Barbara Pagliarani
- Department for Life Quality Studies, University of Bologna, 47921 Rimini, Italy; (L.P.); (M.B.); (B.P.)
| | - Andrea Tarozzi
- Department for Life Quality Studies, University of Bologna, 47921 Rimini, Italy; (L.P.); (M.B.); (B.P.)
- Biostructures and Biosystems National Institute (INBB), 00136 Rome, Italy
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Ju S, Tan Y, Wang Q, Zhou L, Wang K, Wen C, Wang M. Antioxidant and anti‑inflammatory effects of esculin and esculetin (Review). Exp Ther Med 2024; 27:248. [PMID: 38682114 PMCID: PMC11046185 DOI: 10.3892/etm.2024.12536] [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: 10/20/2023] [Accepted: 02/19/2024] [Indexed: 05/01/2024] Open
Abstract
Fraxinus chinensis Roxb is a deciduous tree, which is distributed worldwide and has important medicinal value. In Asia, the bark of Fraxinus chinensis Roxb is a commonly used traditional Chinese medicine called Qinpi. Esculetin is a coumarin compound derived from the bark of Fraxinus chinensis Roxb and its glycoside form is called esculin. The aim of the present study was to systematically review relevant literature on the antioxidant and anti-inflammatory effects of esculetin and esculin. Esculetin and esculin can promote the expression of various endogenous antioxidant proteins, such as superoxide dismutase, glutathione peroxidase and glutathione reductase. This is associated with the activation of the nuclear factor erythroid-derived factor 2-related factor 2 signaling pathway. The anti-inflammatory effects of esculetin and esculin are associated with the inhibition of the nuclear factor κ-B and mitogen-activated protein kinase inflammatory signaling pathways. In various inflammatory models, esculetin and esculin can reduce the expression levels of various proinflammatory factors such as tumor necrosis factor-α, interleukin (IL)-1β and IL-6, thereby inhibiting the development of inflammation. In summary, esculetin and esculin may be promising candidates for the treatment of numerous diseases associated with inflammation and oxidative stress, such as ulcerative colitis, acute lung and kidney injury, lung cancer, acute kidney injury.
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Affiliation(s)
- Shaohua Ju
- Department of Pharmacy, Affiliated Sport Hospital, Chengdu Sport University, Chengdu, Sichuan 610041, P.R. China
| | - Youli Tan
- Department of Pharmacy, Affiliated Sport Hospital, Chengdu Sport University, Chengdu, Sichuan 610041, P.R. China
| | - Qiang Wang
- Department of Pharmacy, Affiliated Sport Hospital, Chengdu Sport University, Chengdu, Sichuan 610041, P.R. China
| | - Ling Zhou
- Department of Pharmacy, Affiliated Sport Hospital, Chengdu Sport University, Chengdu, Sichuan 610041, P.R. China
| | - Kun Wang
- Department of Pharmacy, Affiliated Sport Hospital, Chengdu Sport University, Chengdu, Sichuan 610041, P.R. China
| | - Chenghong Wen
- Department of Pharmacy, Affiliated Sport Hospital, Chengdu Sport University, Chengdu, Sichuan 610041, P.R. China
| | - Mingjian Wang
- Department of Pharmacy, Affiliated Sport Hospital, Chengdu Sport University, Chengdu, Sichuan 610041, P.R. China
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Campos HM, Pereira RM, de Oliveira Ferreira PY, Uchenna N, Branco da Silva CR, Pruccoli L, Sanz G, Rodrigues MF, Vaz BG, Rivello BG, Batista da Rocha AL, de Carvalho FS, Oliveira GDAR, Lião LM, Georg RDC, Leite JA, Dos Santos FCA, Costa EA, Menegatti R, Tarozzi A, Ghedini PC. A novel arylpiperazine derivative (LQFM181) protects against neurotoxicity induced by 3- nitropropionic acid in in vitro and in vivo models. Chem Biol Interact 2024; 395:111026. [PMID: 38679115 DOI: 10.1016/j.cbi.2024.111026] [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: 02/28/2024] [Revised: 04/05/2024] [Accepted: 04/24/2024] [Indexed: 05/01/2024]
Abstract
In the pursuit of novel antioxidant therapies for the prevention and treatment of neurodegenerative diseases, three new arylpiperazine derivatives (LQFM181, LQFM276, and LQFM277) were synthesized through a molecular hybridization approach involving piribedil and butylated hydroxytoluene lead compounds. To evaluate the antioxidant and neuroprotective activities of the arylpiperazine derivatives, we employed an integrated approach using both in vitro (SH-SY5Y cells) and in vivo (neurotoxicity induced by 3-nitropropionic acid in Swiss mice) models. In the in vitro tests, LQFM181 showed the most promising antioxidant activity at the neuronal membrane and cytoplasmic levels, and significant neuroprotective activity against the neurotoxicity induced by 3-nitropropionic acid. Hence, this compound was further subjected to in vivo evaluation, which demonstrated remarkable antioxidant capacity such as reduction of MDA and carbonyl protein levels, increased activities of succinate dehydrogenase, catalase, and superoxide dismutase. Interestingly, using the same in vivo model, LQFM181 also reduced locomotor behavior and memory dysfunction through its ability to decrease cholinesterase activity. Consequently, LQFM181 emerges as a promising candidate for further investigation into its neuroprotective potential, positioning it as a new therapeutic agent for neuroprotection.
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Affiliation(s)
| | - Robbert Mota Pereira
- Institute of Biological Sciences, Federal University of Goias, Goiania, GO, Brazil
| | | | - Nkaa Uchenna
- Institute of Biological Sciences, Federal University of Goias, Goiania, GO, Brazil
| | | | - Letizia Pruccoli
- Department of Life Quality Studies, Alma Mater Studiorum - University of Bologna, Rimini, Italy
| | - Germán Sanz
- Chemistry Institute, Federal University of Goias, Goiania, GO, Brazil
| | | | | | - Bárbara Gonçalves Rivello
- Faculty of Pharmacy, Laboratory of Medicinal Pharmaceutical Chemistry, Federal University of Goias, Goiania, GO, Brazil
| | - André Luís Batista da Rocha
- Faculty of Pharmacy, Laboratory of Medicinal Pharmaceutical Chemistry, Federal University of Goias, Goiania, GO, Brazil
| | - Flávio Silva de Carvalho
- Faculty of Pharmacy, Laboratory of Medicinal Pharmaceutical Chemistry, Federal University of Goias, Goiania, GO, Brazil
| | | | | | | | | | | | - Elson Alves Costa
- Institute of Biological Sciences, Federal University of Goias, Goiania, GO, Brazil
| | - Ricardo Menegatti
- Faculty of Pharmacy, Laboratory of Medicinal Pharmaceutical Chemistry, Federal University of Goias, Goiania, GO, Brazil
| | - Andrea Tarozzi
- Department of Life Quality Studies, Alma Mater Studiorum - University of Bologna, Rimini, Italy
| | - Paulo César Ghedini
- Institute of Biological Sciences, Federal University of Goias, Goiania, GO, Brazil.
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Niu C, Dong M, Niu Y. Natural polyphenol: Their pathogenesis-targeting therapeutic potential in Alzheimer's disease. Eur J Med Chem 2024; 269:116359. [PMID: 38537514 DOI: 10.1016/j.ejmech.2024.116359] [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: 04/09/2023] [Revised: 03/17/2024] [Accepted: 03/24/2024] [Indexed: 04/07/2024]
Abstract
Alzheimer's disease (AD) is a detrimental neurodegenerative disease affecting the elderly. Clinically, it is characterized by progressive memory decline and subsequent loss of broader cognitive functions. Current drugs provide only symptomatic relief but do not have profound disease-modifying effects. There is an unmet need to identify novel pharmacological agents for AD therapy. Neuropathologically, the characteristic hallmarks of the disease are extracellular senile plaques containing amyloid β-peptides and intracellular neurofibrillary tangles containing hyperphosphorylated microtubule-associated protein tau. Simultaneously, oxidative stress, neuroinflammation and mitochondrial dysfunction in specific brain regions are early events during the process of AD pathologic changes and are associated with Aβ/tau toxicity. Here, we first summarized probable pathogenic mechanisms leading to neurodegeneration and hopefully identify pathways that serve as specific targets to improve therapy for AD. We then reviewed the mechanisms that underlie disease-modifying effects of natural polyphenols, with a focus on nuclear factor erythroid 2-related factor 2 activators for AD treatment. Lastly, we discussed challenges in the preclinical to clinical translation of natural polyphenols. In conclusion, there is evidence that natural polyphenols can be therapeutically useful in AD through their multifaceted mechanism of action. However, more clinical studies are needed to confirm these effects.
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Affiliation(s)
- Chengu Niu
- Internal Medicine Residency Program, Rochester General Hospital, Rochester, NY, 14621, USA
| | - Miaoxian Dong
- The Institute of Medicine, Qiqihar Medical University, Qiqihar, 161006, China
| | - Yingcai Niu
- The Institute of Medicine, Qiqihar Medical University, Qiqihar, 161006, China.
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Luo Y, Chang T, Huang S, Xiang J, Tang S, Shen H. Protective Effects and Mechanisms of Esculetin against H 2O 2-Induced Oxidative Stress, Apoptosis, and Pyroptosis in Human Hepatoma HepG2 Cells. Molecules 2024; 29:1415. [PMID: 38611695 PMCID: PMC11013120 DOI: 10.3390/molecules29071415] [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: 02/22/2024] [Revised: 03/15/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024] Open
Abstract
Oxidative stress plays a crucial role in the pathogenesis of many diseases. Esculetin is a natural coumarin compound with good antioxidant and anti-inflammatory properties. However, whether esculetin can protect HepG2 cells through inhibiting H2O2-induced apoptosis and pyroptosis is still ambiguous. Therefore, this study aimed to investigate the protective effects and mechanisms of esculetin against oxidative stress-induced cell damage in HepG2 cells. The results of this study demonstrate that pretreatment with esculetin could significantly improve the decrease in cell viability induced by H2O2 and reduce intracellular ROS levels. Esculetin not only apparently reduced the apoptotic rates and prevented MMP loss, but also markedly decreased cleaved-Caspase-3, cleaved-PARP, pro-apoptotic protein (Bax), and MMP-related protein (Cyt-c) expression, and increased anti-apoptotic protein (Bcl-2) expression in H2O2-induced HepG2 cells. Meanwhile, esculetin also remarkably reduced the level of LDH and decreased the expression of the pyroptosis-related proteins NLRP3, cleaved-Caspase-1, Il-1β, and GSDMD-N. Furthermore, esculetin pretreatment evidently downregulated the protein expression of p-JNK, p-c-Fos, and p-c-Jun. Additionally, anisomycin, a specific activator of JNK, blocked the protection of esculetin against H2O2-induced HepG2 cells apoptosis and pyroptosis. In conclusion, esculetin can protect HepG2 cells against H2O2-induced oxidative stress, apoptosis, and pyroptosis via inhibiting the JNK signaling pathway. These findings indicate that esculetin has the potential to be used as an antioxidant that improves oxidative stress-related diseases.
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Affiliation(s)
| | | | | | | | | | - Haiyan Shen
- The Institute of Biochemistry and Molecular Biology, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang Medical College, University of South China, Hengyang 421001, China; (Y.L.); (T.C.); (S.H.); (J.X.); (S.T.)
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Pruccoli L, Nicolini B, Lianza M, Teti G, Falconi M, Tarozzi A, Antognoni F. Antioxidant and Anti-Melanogenesis Effects of Teucrium chamaedrys L. Cell Suspension Extract and Its Main Phenylethanoid Glycoside in B16-F10 Cells. PLANTS (BASEL, SWITZERLAND) 2024; 13:808. [PMID: 38592786 PMCID: PMC10974463 DOI: 10.3390/plants13060808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 04/11/2024]
Abstract
Teucrium chamaedrys L. is a typical European-Mediterranean species of the genus Teucrium. Among the phenolic compounds belonging to phenylethanoid glycosides (PGs), teucrioside (TS) is only found in this species, and it was previously demonstrated to be produced by in vitro-elicited cell cultures at levels higher than those found in leaves. However, T. chamaedrys cell suspension extracts (Cell-Ex) and pure TS have not been investigated yet for any biological effects. In this study, we evaluated the antioxidant and anti-melanogenesis activity of both Cell-Ex and TS in B16-F10 mouse melanoma cells. The results showed that Cell-Ex inhibited the reactive oxygen species formation evoked in B16-F10 cells by tert-butyl hydroperoxide and 5 J/cm2 of UVA, as well as the melanin increase stimulated by α-MSH or 20 J/cm2 of UVA. In parallel, a TS concentration equivalent to that present in Cell-Ex recorded the same biological effect profile, suggesting the main contribution of TS to the antioxidant and anti-melanogenic properties of Cell-Ex. Both Cell-Ex and TS also modulated the melanogenesis pathway through their ability to inhibit the tyrosinase activity both in a cell-free system and in B16-F10 cells stimulated by α-MSH. These results support the potential cosmeceutical use of Cell-Ex for protection against photooxidative damage and hyperpigmentation.
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Affiliation(s)
- Letizia Pruccoli
- Department for Life Quality Studies, University of Bologna, 47921 Rimini, Italy; (L.P.); (B.N.); (M.L.); (F.A.)
| | - Benedetta Nicolini
- Department for Life Quality Studies, University of Bologna, 47921 Rimini, Italy; (L.P.); (B.N.); (M.L.); (F.A.)
| | - Mariacaterina Lianza
- Department for Life Quality Studies, University of Bologna, 47921 Rimini, Italy; (L.P.); (B.N.); (M.L.); (F.A.)
| | - Gabriella Teti
- Department of Biomedical and Neuromotor Sciences, University di Bologna, 40126 Bologna, Italy;
| | - Mirella Falconi
- Department of Medical and Surgical Sciences, University di Bologna, 40126 Bologna, Italy;
| | - Andrea Tarozzi
- Department for Life Quality Studies, University of Bologna, 47921 Rimini, Italy; (L.P.); (B.N.); (M.L.); (F.A.)
- Biostructures and Biosystems National Institute (INBB), 00136 Rome, Italy
| | - Fabiana Antognoni
- Department for Life Quality Studies, University of Bologna, 47921 Rimini, Italy; (L.P.); (B.N.); (M.L.); (F.A.)
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Tavan M, Hanachi P, de la Luz Cádiz-Gurrea M, Segura Carretero A, Mirjalili MH. Natural Phenolic Compounds with Neuroprotective Effects. Neurochem Res 2024; 49:306-326. [PMID: 37940760 DOI: 10.1007/s11064-023-04046-z] [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: 08/01/2023] [Revised: 10/09/2023] [Accepted: 10/14/2023] [Indexed: 11/10/2023]
Abstract
Neurodegenerative disorders are characterized by mitochondrial dysfunction and subsequently oxidative stress, inflammation, and apoptosis that contribute to neuronal cytotoxicity and degeneration. Huntington's (HD), Alzheimer's (AD), and Parkinson's (PD) diseases are three of the major neurodegenerative diseases. To date, researchers have found various natural phytochemicals that could potentially be used to treat neurodegenerative diseases. Particularly, the application of natural phenolic compounds has gained significant traction in recent years, driven by their various biological activities and therapeutic efficacy in human health. Polyphenols, by modulating different cellular functions, play an important role in neuroprotection and can neutralize the effects of oxidative stress, inflammation, and apoptosis in animal models. This review focuses on the current state of knowledge on phenolic compounds, including phenolic acids, flavonoids, stilbenes, and coumarins, as well as their beneficial effects on human health. We further provide an overview of the therapeutic potential and mechanisms of action of natural dietary phenolics in curing neurodegenerative diseases in animal models.
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Affiliation(s)
- Mansoureh Tavan
- Department of Agriculture, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, 1983969411, Iran.
- Department of Biotechnology, Faculty of Biological Science, Alzahra University, Tehran, Iran.
| | - Parichehr Hanachi
- Department of Biotechnology, Faculty of Biological Science, Alzahra University, Tehran, Iran
| | | | | | - Mohammad Hossein Mirjalili
- Department of Agriculture, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, 1983969411, Iran
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Güvenç M, Yüksel M, Kutlu T, Etyemez M, Gökçek İ, Cellat M. Protective effects of esculetin against ovary ischemia-reperfusion injury model in rats. J Biochem Mol Toxicol 2024; 38:e23528. [PMID: 37661762 DOI: 10.1002/jbt.23528] [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: 06/01/2023] [Revised: 07/15/2023] [Accepted: 08/25/2023] [Indexed: 09/05/2023]
Abstract
AIMS Ovarian ischemia-reperfusion (I/R) injury is a phenomenon that necessitates urgent intervention, which occurs as a result of ovarian torsion, and it is frequently seen in young women. A large amount of free radical and oxidative damage as a result of I/R plays a role in the cause of the incident. Antioxidant agents are thought to be beneficial in preventing this damage, and the potential protective effects of esculetin, which had not been tested previously, were investigated in this study. STUDY DESIGN The rats in the study were divided into five groups at random: control, sham, esculetin, I/R, and treatment. Oxidative stress parameters, proinflammatory cytokines, nuclear factor erythroid 2-related factor 2 (Nrf-2)/nuclear factor-kβ (NF-κβ) pathway, and histopathological analyses were evaluated at the end of the study. KEY FINDINGS After I/R, malondialdehyde levels, proinflammatory cytokines, tumor necrosis factor-α and interleukin-1β levels and NF-κβ expressions were increased, Nrf-2 expression and glutathione level decreased and the histopathologic picture deteriorated. However, as a result of the esculetin treatment, ameliorative effects in the aforementioned parameters were determined, and it was ensured that they returned to normal levels. CONCLUSION According to these findings, esculetin has protective effects on I/R damage by lowering lipid peroxidation and having antioxidant and anti-inflammatory properties. SIGNIFICANCE Our results proved the protective effect of esculetin against ovarian IR injury in rats and this may be attributed to Nrf-2/NF-κβ axis which showed antioxidant and anti-inflammatory effects. Therefore, esculetin can be used in the future for preventive effects to ovarian IR injury.
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Affiliation(s)
- Mehmet Güvenç
- Department of Physiology, Faculty of Veterinary Medicine, University of Hatay Mustafa Kemal, Antakya, Hatay, Turkey
| | - Murat Yüksel
- Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, University of Hatay Mustafa Kemal, Antakya, Hatay, Turkey
| | - Tuncer Kutlu
- Department of Pathology, Faculty of Veterinary Medicine, University of Hatay Mustafa Kemal, Antakya, Hatay, Turkey
| | - Muhammed Etyemez
- Department of Physiology, Faculty of Veterinary Medicine, University of Kastamonu, Kastamonu, Turkey
| | - İshak Gökçek
- Department of Physiology, Faculty of Veterinary Medicine, University of Hatay Mustafa Kemal, Antakya, Hatay, Turkey
| | - Mustafa Cellat
- Department of Physiology, Faculty of Veterinary Medicine, University of Hatay Mustafa Kemal, Antakya, Hatay, Turkey
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10
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Zhou X, Wu X, Wang R, Han L, Li H, Zhao W. Mechanisms of 3-Hydroxyl 3-Methylglutaryl CoA Reductase in Alzheimer's Disease. Int J Mol Sci 2023; 25:170. [PMID: 38203341 PMCID: PMC10778631 DOI: 10.3390/ijms25010170] [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: 11/14/2023] [Revised: 12/16/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative disease worldwide and has a high incidence in the elderly. Unfortunately, there is no effective therapy for AD owing to its complicated pathogenesis. However, the development of lipid-lowering anti-inflammatory drugs has heralded a new era in the treatment of Alzheimer's disease. Several studies in recent years have shown that lipid metabolic dysregulation and neuroinflammation are associated with the pathogenesis of AD. 3-Hydroxyl 3-methylglutaryl CoA reductase (HMGCR) is a rate-limiting enzyme in cholesterol synthesis that plays a key role in cholesterol metabolism. HMGCR inhibitors, known as statins, have changed from being solely lipid-lowering agents to neuroprotective compounds because of their effects on lipid levels and inflammation. In this review, we first summarize the main regulatory mechanism of HMGCR affecting cholesterol biosynthesis. We also discuss the pathogenesis of AD induced by HMGCR, including disordered lipid metabolism, oxidative stress, inflammation, microglial proliferation, and amyloid-β (Aβ) deposition. Subsequently, we explain the possibility of HMGCR as a potential target for AD treatment. Statins-based AD treatment is an ascent field and currently quite controversial; therefore, we also elaborate on the current application prospects and limitations of statins in AD treatment.
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Affiliation(s)
- Xun Zhou
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China; (X.Z.); (X.W.); (R.W.); (L.H.)
- Department of Endocrinology, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen 518033, China;
| | - Xiaolang Wu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China; (X.Z.); (X.W.); (R.W.); (L.H.)
| | - Rui Wang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China; (X.Z.); (X.W.); (R.W.); (L.H.)
| | - Lu Han
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China; (X.Z.); (X.W.); (R.W.); (L.H.)
| | - Huilin Li
- Department of Endocrinology, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen 518033, China;
| | - Wei Zhao
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China; (X.Z.); (X.W.); (R.W.); (L.H.)
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11
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Xia M, Wu Z, Wang J, Buist-Homan M, Moshage H. The Coumarin-Derivative Esculetin Protects against Lipotoxicity in Primary Rat Hepatocytes via Attenuating JNK-Mediated Oxidative Stress and Attenuates Free Fatty Acid-Induced Lipid Accumulation. Antioxidants (Basel) 2023; 12:1922. [PMID: 38001774 PMCID: PMC10669015 DOI: 10.3390/antiox12111922] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/22/2023] [Accepted: 10/25/2023] [Indexed: 11/26/2023] Open
Abstract
Coumarin derivates have been proposed as a potential treatment for metabolic-dysfunction-associated fatty liver disease (MAFLD). However, the mechanisms underlying their beneficial effects remain unclear. In the present study, we explored the potential of the coumarin derivate esculetin in MAFLD, focusing on hepatocyte lipotoxicity and lipid accumulation. Primary cultures of rat hepatocytes were exposed to palmitic acid (PA) and palmitic acid plus oleic acid (OA/PA) as models of lipotoxicity and lipid accumulation, respectively. Esculetin significantly reduced oxidative stress in PA-treated hepatocytes, as shown by decreased total reactive oxygen species (ROS) and mitochondrial superoxide production and elevated expression of antioxidant genes, including Nrf2 and Gpx1. In addition, esculetin protects against PA-induced necrosis. Esculetin also improved lipid metabolism in primary hepatocytes exposed to nonlipotoxic OA/PA by decreasing the expression of the lipogenesis-related gene Srebp1c and increasing the expression of the fatty acid β-oxidation-related gene Ppar-α. Moreover, esculetin attenuated lipid accumulation in OA/PA-treated hepatocytes. The protective effects of esculetin against lipotoxicity and lipid accumulation were shown to be dependent on the inhibition of JNK and the activation of AMPK, respectively. We conclude that esculetin is a promising compound to target lipotoxicity and lipid accumulation in the treatment of MAFLD.
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Affiliation(s)
- Mengmeng Xia
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands; (M.X.); (Z.W.); (J.W.); (M.B.-H.)
| | - Zongmei Wu
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands; (M.X.); (Z.W.); (J.W.); (M.B.-H.)
| | - Junyu Wang
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands; (M.X.); (Z.W.); (J.W.); (M.B.-H.)
| | - Manon Buist-Homan
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands; (M.X.); (Z.W.); (J.W.); (M.B.-H.)
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands
| | - Han Moshage
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands; (M.X.); (Z.W.); (J.W.); (M.B.-H.)
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands
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12
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Alyahya AAI, Asad M, Alhussaini MS, Abdelsalam KEA, Alenezi EA. The antidiabetic effect of methanolic extract of Holarrhena pubescens seeds is mediated through multiple mechanisms of action. Saudi Pharm J 2023; 31:824-833. [PMID: 37228324 PMCID: PMC10203776 DOI: 10.1016/j.jsps.2023.04.009] [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: 03/01/2023] [Accepted: 04/06/2023] [Indexed: 05/27/2023] Open
Abstract
Holarrhena pubescens is widely used in Indian and Chinese medicine in the treatment of diabetes. The current work determined the oral hypoglycemic and antidiabetic effects of seed extract in rats. The probable mechanism of action was evaluated in-vitro by α - glucosidase inhibition, glucose metabolism in insulinoma (INS-1) cells to reflect secretion of insulin, and protein glycation inhibition. Its potential for herb-drug interaction was evaluated in the cytochrome P450 3A4 (CYP3A4) inhibition assay. The seed extract increased serum insulin levels and reduced serum blood glucose levels in the oral glucose tolerance test. It also reduced the serum glucose levels in streptozocin-induced diabetes. The extract also inhibited α -glucosidase enzyme activity and demonstrated that it can increase the secretion of insulin from INS to 1-rat insulinoma cell line cells in-vitro in a concentration-dependent manner. However, it had a very weak inhibitory effect on protein glycation and it did not affect the activity of CYP3A4. The results of the study showed that H. pubescens seed extract increases insulin secretion and inhibits glucose absorption both in-vivo and in-vitro with a weak protein glycation inhibitory effect. The herb is devoid of CYP3A4 inhibitory effect indicating that it may not have pharmacokinetic interaction with the drug metabolized by this enzyme.
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13
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Di Stasi LC. Natural Coumarin Derivatives Activating Nrf2 Signaling Pathway as Lead Compounds for the Design and Synthesis of Intestinal Anti-Inflammatory Drugs. Pharmaceuticals (Basel) 2023; 16:ph16040511. [PMID: 37111267 PMCID: PMC10142712 DOI: 10.3390/ph16040511] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/24/2023] [Accepted: 03/28/2023] [Indexed: 04/29/2023] Open
Abstract
Nrf2 (nuclear factor erythroid 2-related factor 2) is a transcription factor related to stress response and cellular homeostasis that plays a key role in maintaining the redox system. The imbalance of the redox system is a triggering factor for the initiation and progression of non-communicable diseases (NCDs), including Inflammatory Bowel Disease (IBD). Nrf2 and its inhibitor Kelch-like ECH-associated protein 1 (Keap1) are the main regulators of oxidative stress and their activation has been recognized as a promising strategy for the treatment or prevention of several acute and chronic diseases. Moreover, activation of Nrf2/keap signaling pathway promotes inhibition of NF-κB, a transcriptional factor related to pro-inflammatory cytokines expression, synchronically promoting an anti-inflammatory response. Several natural coumarins have been reported as potent antioxidant and intestinal anti-inflammatory compounds, acting by different mechanisms, mainly as a modulator of Nrf2/keap signaling pathway. Based on in vivo and in vitro studies, this review focuses on the natural coumarins obtained from both plant products and fermentative processes of food plants by gut microbiota, which activate Nrf2/keap signaling pathway and produce intestinal anti-inflammatory activity. Although gut metabolites urolithin A and urolithin B as well as other plant-derived coumarins display intestinal anti-inflammatory activity modulating Nrf2 signaling pathway, in vitro and in vivo studies are necessary for better pharmacological characterization and evaluation of their potential as lead compounds. Esculetin, 4-methylesculetin, daphnetin, osthole, and imperatorin are the most promising coumarin derivatives as lead compounds for the design and synthesis of Nrf2 activators with intestinal anti-inflammatory activity. However, further structure-activity relationships studies with coumarin derivatives in experimental models of intestinal inflammation and subsequent clinical trials in health and disease volunteers are essential to determine the efficacy and safety in IBD patients.
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Affiliation(s)
- Luiz C Di Stasi
- Laboratory of Phytomedicines, Pharmacology and Biotechnology (PhytoPharmaTech), Department of Biophysics and Pharmacology, São Paulo State University (UNESP), Botucatu 18618-689, SP, Brazil
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14
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Kaur P, Attri S, Singh D, Rashid F, Singh S, Kumar A, Kaur H, Bedi N, Arora S. Neuromodulatory effect of 4-(methylthio)butyl isothiocyanate against 3-nitropropionic acid induced oxidative impairments in human dopaminergic SH-SY5Y cells via BDNF/CREB/TrkB pathway. Sci Rep 2023; 13:4461. [PMID: 36932199 PMCID: PMC10023800 DOI: 10.1038/s41598-023-31716-3] [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: 01/21/2023] [Accepted: 03/16/2023] [Indexed: 03/19/2023] Open
Abstract
Mitochondrial impairment, energetic crisis and elevated oxidative stress have been demonstrated to play a pivotal role in the pathological processes of Huntington's disease (HD). 3-Nitropropionic acid (3-NPA) is a natural neurotoxin that mimics the neurological dysfunctions, mitochondrial impairments and oxidative imbalance of HD. The current investigation was undertaken to demonstrate the neuroprotective effect of 4-(methylthio)butyl isothiocyanate (4-MTBITC) against the 3-NPA induced neurotoxicity in human dopaminergic SH-SY5Y cells. The experimental evidence of oxidative DNA damage by 3-NPA was elucidated by pBR322 DNA nicking assay. In contrast, the 4-MTBITC considerably attenuated the DNA damage, suggesting its free radical scavenging action against 3-NPA and Fenton's reagent. The dose and time-dependent increase of 3-NPA revealed its neurotoxic dose as 0.5 mM after 24 h of treatment of SH-SY5Y cells in MTT assay. In order to determine the optimal dose at which 4-MTBITC protects cell death, the 3-NPA (IC50) induced cells were pretreated with different concentrations of 4-MTBITC for 1 h. The neuroprotective dose of 4-MTBITC against 3-NPA was found to be 0.25 μM. Additionally, the elevated GSH levels in cells treated with 4-MTBITC indicate its propensity to eliminate reactive species generated as a result of 3-NPA-induced mitochondrial dysfunction. Likewise, it was determined through microscopic and flow cytometric experiments that 3-NPA's induced overproduction of reactive species and a decline in mitochondrial membrane potential (MMP) could be efficiently prevented by pre-treating cells with 4-MTBITC. To elucidate the underlying molecular mechanism, the RT-qPCR analysis revealed that the pre-treatment of 4-MTBITC effectively protected neuronal cells against 3-NPA-induced cell death by preventing Caspase-3 activation, Brain-derived neurotrophic factor (BDNF) upregulation, activation of cAMP response element-binding protein (CREB) and Nrf2 induction. Together, our findings lend credence to the idea that pre-treatment with 4-MTBITC reduced 3-NPA-induced neurotoxicity by lowering redox impairment, apoptotic state, and mitochondrial dysfunction. The present work, in conclusion, presented the first proof that the phytoconstituent 4-MTBITC supports the antioxidant system, BDNF/TrkB/CREB signaling, and neuronal survival in dopaminergic SH-SY5Y cells against 3-NPA-induced oxidative deficits.
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Affiliation(s)
- Prabhjot Kaur
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Shivani Attri
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Davinder Singh
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India.
- Department of Molecular Genetics, The Ohio State University, Columbus, OH, 43210, USA.
| | - Farhana Rashid
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Sharabjit Singh
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Avinash Kumar
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Harjot Kaur
- Department of Biotechnology, Punjabi University, Patiala, 147001, India
| | - Neena Bedi
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Saroj Arora
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India.
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15
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Flores-Morales V, Villasana-Ruíz AP, Garza-Veloz I, González-Delgado S, Martinez-Fierro ML. Therapeutic Effects of Coumarins with Different Substitution Patterns. Molecules 2023; 28:molecules28052413. [PMID: 36903660 PMCID: PMC10005689 DOI: 10.3390/molecules28052413] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/24/2023] [Accepted: 03/03/2023] [Indexed: 03/09/2023] Open
Abstract
The use of derivatives of natural and synthetic origin has gained attention because of their therapeutic effects against human diseases. Coumarins are one of the most common organic molecules and are used in medicine for their pharmacological and biological effects, such as anti-inflammatory, anticoagulant, antihypertensive, anticonvulsant, antioxidant, antimicrobial, and neuroprotective, among others. In addition, coumarin derivates can modulate signaling pathways that impact several cell processes. The objective of this review is to provide a narrative overview of the use of coumarin-derived compounds as potential therapeutic agents, as it has been shown that substituents on the basic core of coumarin have therapeutic effects against several human diseases and types of cancer, including breast, lung, colorectal, liver, and kidney cancer. In published studies, molecular docking has represented a powerful tool to evaluate and explain how these compounds selectively bind to proteins involved in various cellular processes, leading to specific interactions with a beneficial impact on human health. We also included studies that evaluated molecular interactions to identify potential biological targets with beneficial effects against human diseases.
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Affiliation(s)
- Virginia Flores-Morales
- Asymmetric Synthesis and Bio-chemoinformatics Laboratory (LSAyB), Ingeniería Química (UACQ), Universidad Autónoma de Zacatecas, Carretera Zacatecas-Guadalajara Km.6. Ejido la Escondida, Zacatecas 98160, Mexico
- Correspondence: (V.F.-M.); (M.L.M.-F.)
| | - Ana P. Villasana-Ruíz
- Asymmetric Synthesis and Bio-chemoinformatics Laboratory (LSAyB), Ingeniería Química (UACQ), Universidad Autónoma de Zacatecas, Carretera Zacatecas-Guadalajara Km.6. Ejido la Escondida, Zacatecas 98160, Mexico
- Molecular Medicine Laboratory, Academic Unit of Human Medicine and Health Sciences, Universidad Autónoma de Zacatecas, Carretera Zacatecas-Guadalajara Km.6. Ejido La Escondida, Zacatecas 98160, Mexico
| | - Idalia Garza-Veloz
- Molecular Medicine Laboratory, Academic Unit of Human Medicine and Health Sciences, Universidad Autónoma de Zacatecas, Carretera Zacatecas-Guadalajara Km.6. Ejido La Escondida, Zacatecas 98160, Mexico
| | - Samantha González-Delgado
- Molecular Medicine Laboratory, Academic Unit of Human Medicine and Health Sciences, Universidad Autónoma de Zacatecas, Carretera Zacatecas-Guadalajara Km.6. Ejido La Escondida, Zacatecas 98160, Mexico
| | - Margarita L. Martinez-Fierro
- Molecular Medicine Laboratory, Academic Unit of Human Medicine and Health Sciences, Universidad Autónoma de Zacatecas, Carretera Zacatecas-Guadalajara Km.6. Ejido La Escondida, Zacatecas 98160, Mexico
- Correspondence: (V.F.-M.); (M.L.M.-F.)
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16
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Theerasri A, Janpaijit S, Tencomnao T, Prasansuklab A. Beyond the classical amyloid hypothesis in Alzheimer's disease: Molecular insights into current concepts of pathogenesis, therapeutic targets, and study models. WIREs Mech Dis 2023; 15:e1591. [PMID: 36494193 DOI: 10.1002/wsbm.1591] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 11/19/2022] [Accepted: 11/21/2022] [Indexed: 12/14/2022]
Abstract
Alzheimer's disease (AD) is one of the progressive neurodegenerative disorders and the most common cause of dementia in the elderly worldwide causing difficulties in the daily life of the patient. AD is characterized by the aberrant accumulation of β-amyloid plaques and tau protein-containing neurofibrillary tangles (NFTs) in the brain giving rise to neuroinflammation, oxidative stress, synaptic failure, and eventual neuronal cell death. The total cost of care in AD treatment and related health care activities is enormous and pharmaceutical drugs approved by Food and Drug Administration have not manifested sufficient efficacy in protection and therapy. In recent years, there are growing studies that contribute a fundamental understanding to AD pathogenesis, AD-associated risk factors, and pharmacological intervention. However, greater molecular process-oriented research in company with suitable experimental models is still of the essence to enhance the prospects for AD therapy and cell lines as a disease model are still the major part of this milestone. In this review, we provide an insight into molecular mechanisms, particularly the recent concept in gut-brain axis, vascular dysfunction and autophagy, and current models used in the study of AD. Here, we emphasized the importance of therapeutic strategy targeting multiple mechanisms together with utilizing appropriate models for the discovery of novel effective AD therapy. This article is categorized under: Neurological Diseases > Molecular and Cellular Physiology.
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Affiliation(s)
- Atsadang Theerasri
- Graduate Program in Clinical Biochemistry and Molecular Medicine, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand.,Natural Products for Neuroprotection and Anti-ageing Research Unit, Chulalongkorn University, Bangkok, Thailand
| | - Sakawrat Janpaijit
- Graduate Program in Clinical Biochemistry and Molecular Medicine, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand.,Natural Products for Neuroprotection and Anti-ageing Research Unit, Chulalongkorn University, Bangkok, Thailand
| | - Tewin Tencomnao
- Natural Products for Neuroprotection and Anti-ageing Research Unit, Chulalongkorn University, Bangkok, Thailand.,Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Anchalee Prasansuklab
- Natural Products for Neuroprotection and Anti-ageing Research Unit, Chulalongkorn University, Bangkok, Thailand.,College of Public Health Sciences, Chulalongkorn University, Bangkok, Thailand
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17
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Knoor LH, Hoogewerf LP, Jonker IB, Doty EA, Du Laney GR, Blankespoor RL, Muyskens MA. Spectral properties and modeling of knightletin, a novel aminocoumarin with intramolecular hydrogen bonding. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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18
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Graziosi A, Sita G, Corrieri C, Angelini S, d’Emmanuele di Villa Bianca R, Mitidieri E, Sorrentino R, Hrelia P, Morroni F. Effects of Subtoxic Concentrations of Atrazine, Cypermethrin, and Vinclozolin on microRNA-Mediated PI3K/Akt/mTOR Signaling in SH-SY5Y Cells. Int J Mol Sci 2022; 23:ijms232314538. [PMID: 36498866 PMCID: PMC9737829 DOI: 10.3390/ijms232314538] [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: 11/02/2022] [Revised: 11/18/2022] [Accepted: 11/19/2022] [Indexed: 11/24/2022] Open
Abstract
Endocrine-disrupting chemicals (EDCs) are different natural and synthetic chemicals that may interfere with several mechanisms of the endocrine system producing adverse developmental, metabolic, reproductive, and neurological effects in both human beings and wildlife. Among pesticides, numerous chemicals have been identified as EDCs. MicroRNAs (miRNAs) can regulate gene expression, making fine adjustments in mRNA abundance and regulating proteostasis. We hypothesized that exposure to low doses of atrazine, cypermethrin, and vinclozolin may lead to effects on miRNA expression in SH-SY5Y cells. In particular, the exposure of SH-SY5Y cells to subtoxic concentrations of vinclozolin is able to downregulate miR-29b-3p expression leading to the increase in the related gene expression of ADAM12 and CDK6, which may promote a pro-oncogenic response through the activation of the PI3K/Akt/mTOR pathway and counteracting p53 activity. A better understanding of the molecular mechanisms of EDCs could provide important insight into their role in human disease.
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Affiliation(s)
- Agnese Graziosi
- Department of Pharmacy and BioTechnology—FaBiT, Alma Mater Studiorum—University of Bologna, via Irnerio 48, 40126 Bologna, Italy
| | - Giulia Sita
- Department of Pharmacy and BioTechnology—FaBiT, Alma Mater Studiorum—University of Bologna, via Irnerio 48, 40126 Bologna, Italy
| | - Camilla Corrieri
- Department of Pharmacy and BioTechnology—FaBiT, Alma Mater Studiorum—University of Bologna, via Irnerio 48, 40126 Bologna, Italy
| | - Sabrina Angelini
- Department of Pharmacy and BioTechnology—FaBiT, Alma Mater Studiorum—University of Bologna, via Irnerio 48, 40126 Bologna, Italy
| | | | - Emma Mitidieri
- Department of Pharmacy, School of Medicine and Surgery, University of Study of Naples—Federico II, via Montesano 49, 80131 Naples, Italy
| | - Raffaella Sorrentino
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine and Surgery, University of Study of Naples—Federico II, via Pansini 5, 80131 Naples, Italy
| | - Patrizia Hrelia
- Department of Pharmacy and BioTechnology—FaBiT, Alma Mater Studiorum—University of Bologna, via Irnerio 48, 40126 Bologna, Italy
- Correspondence: ; Tel.: +39-051-209-1798
| | - Fabiana Morroni
- Department of Pharmacy and BioTechnology—FaBiT, Alma Mater Studiorum—University of Bologna, via Irnerio 48, 40126 Bologna, Italy
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19
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Trifan A, Czerwińska ME, Mardari C, Zengin G, Sinan KI, Korona-Glowniak I, Skalicka-Woźniak K, Luca SV. Exploring the Artemisia Genus: An Insight into the Phytochemical and Multi-Biological Potential of A. campestris subsp. lednicensis (Spreng.) Greuter & Raab-Straube. PLANTS (BASEL, SWITZERLAND) 2022; 11:2874. [PMID: 36365326 PMCID: PMC9658600 DOI: 10.3390/plants11212874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 10/13/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
The Artemisia L. genus includes over five hundred species with great economic and medicinal properties. Our study aimed to provide a comprehensive metabolite and bioactivity profile of Artemisia campestris subsp. lednicensis (Spreng.) Greuter & Raab-Straube collected from north-eastern Romania. Liquid chromatography with tandem high-resolution mass spectrometry (LC-HRMS/MS) analysis of different polarity extracts obtained from the aerial parts led to the identification of twelve flavonoids, three phenolic acids, two sesquiterpene lactones, two fatty acids, one coumarin, and one lignan. The antioxidant and enzyme inhibitory properties were shown in the DPPH (0.71−213.68 mg TE/g) and ABTS (20.57−356.35 mg TE/g) radical scavenging, CUPRAC (38.56−311.21 mg TE/g), FRAP (121.68−202.34 mg TE/g), chelating (12.88−22.25 mg EDTAE/g), phosphomolybdenum (0.92−2.11 mmol TE/g), anti-acetylcholinesterase (0.15−3.64 mg GALAE/g), anti-butyrylcholinesterase (0−3.18 mg GALAE/g), anti-amylase (0.05−0.38 mmol ACAE/g), anti-glucosidase (0.43−2.21 mmol ACAE/g), and anti-tyrosinase (18.62−48.60 mg KAE/g) assays. At 100 μg/mL, Artemisia extracts downregulated the secretion of tumor necrosis factor (TNF)-α in a lipopolysaccharide (LPS)-stimulated human neutrophil model (29.05−53.08% of LPS+ control). Finally, the Artemisia samples showed moderate to weak activity (minimum inhibitory concentration (MIC) > 625 mg/L) against the seventeen tested microbial strains (bacteria, yeasts, and dermatophytes). Overall, our study shows that A. campestris subsp. lednicensis is a promising source of bioactives with putative use as food, pharmaceutical and cosmetic ingredients.
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Affiliation(s)
- Adriana Trifan
- Department of Pharmacognosy, Faculty of Pharmacy, “Grigore T. Popa” University of Medicine and Pharmacy Iasi, 700115 Iasi, Romania
| | - Monika E. Czerwińska
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, 02-097 Warsaw, Poland
- Center for Preclinical Research, Medical University of Warsaw, 02-097 Warsaw, Poland
| | | | - Gokhan Zengin
- Physiology and Biochemistry Research Laboratory, Department of Biology, Science Faculty, Selcuk University, Konya 42130, Turkey
| | - Kouadio Ibrahime Sinan
- Physiology and Biochemistry Research Laboratory, Department of Biology, Science Faculty, Selcuk University, Konya 42130, Turkey
| | - Izabela Korona-Glowniak
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Medical University of Lublin, 20-093 Lublin, Poland
| | | | - Simon Vlad Luca
- Department of Pharmacognosy, Faculty of Pharmacy, “Grigore T. Popa” University of Medicine and Pharmacy Iasi, 700115 Iasi, Romania
- Biothermodynamics, TUM School of Life and Food Sciences, Technical University of Munich, 85354 Freising, Germany
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20
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Macedo Vaz S, de Freitas Silva M, Dos Reis Rosa Franco G, Jorge R Guimarães M, Motta R da Silva F, Gonçalves Castro N, Alvim Guedes I, Dardenne LE, Amaral Alves M, Garrett da Costa R, Beserra Pinheiro G, Germino Veras L, Renata Mortari M, Pruccoli L, Tarozzi A, Viegas C. Synthesis and biological evaluation of 4-hydroxy-methylpiperidinyl-N-benzyl-acylarylhydrazone hybrids designed as novel multifunctional drug candidates for Alzheimer's disease. Bioorg Med Chem 2022; 71:116952. [PMID: 35930852 DOI: 10.1016/j.bmc.2022.116952] [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: 02/27/2022] [Revised: 07/28/2022] [Accepted: 07/29/2022] [Indexed: 11/26/2022]
Abstract
The search for new drug candidates against Alzheimer's disease (AD) remains a complex challenge for medicinal chemists due to its multifactorial pathogenesis and incompletely understood physiopathology. In this context, we have explored the molecular hybridization of pharmacophore structural fragments from known bioactive molecules, aiming to obtain a novel molecular architecture in new chemical entities capable of concomitantly interacting with multiple targets in a so-called multi-target directed ligands (MTDLs) approach. This work describes the synthesis of 4-hydroxymethyl)piperidine-N-benzyl-acyl-hydrazone derivatives 5a-l, designed as novel MTDLs, showing improved multifunctional properties compared to the previously reported parent series of N-benzyl-(3-hydroxy)piperidine-acyl-hydrazone derivatives 4. The new improved derivatives were studied in silico, regarding their mode of interaction with AChE enzyme, and in vitro, for evaluation of their effects on the selective inhibition of cholinesterases, cellular antioxidant, and neuroprotective activities as their cytotoxicity in human neuroblastoma (SH-SY5Y) cells. Overall, compound PQM-181 (5 k) showed the best balanced selective and non-competitive inhibition of AChE (IC50 = 5.9 μM, SI > 5.1), with an additional antioxidant activity (IC50 = 7.45 µM) against neuronal t-BOOH-induced oxidative stress and neuroprotective ability against neurotoxicity elicited by both t-BOOH and OAβ1-42, and a moderate ability to interfere in Aβ1-42 aggregates, with low cytotoxicity and good predictive druggability properties, suggesting a multifunctional pharmacological profile suitable for further drug development against AD.
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Affiliation(s)
- Sarah Macedo Vaz
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, MG 37133-840, Brazil
| | - Matheus de Freitas Silva
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, MG 37133-840, Brazil
| | - Graziella Dos Reis Rosa Franco
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, MG 37133-840, Brazil
| | - Marcos Jorge R Guimarães
- Laboratory of Molecular Pharmacology, Institute of Biomedical Sciences, Federal University of Rio de Janeiro, RJ 21941-902, Brazil
| | - Fernanda Motta R da Silva
- Laboratory of Molecular Pharmacology, Institute of Biomedical Sciences, Federal University of Rio de Janeiro, RJ 21941-902, Brazil
| | - Newton Gonçalves Castro
- Laboratory of Molecular Pharmacology, Institute of Biomedical Sciences, Federal University of Rio de Janeiro, RJ 21941-902, Brazil
| | - Isabella Alvim Guedes
- National Laboratory for Scientific Computing - LNCC, Petropolis, RJ 25651-075, Brazil
| | - Laurent E Dardenne
- National Laboratory for Scientific Computing - LNCC, Petropolis, RJ 25651-075, Brazil
| | - Marina Amaral Alves
- Laboratory of Metabolomics - LabMeta/LADETEC, Institute of Chemistry, Federal University of Rio de Janeiro, RJ 21941-598, Brazil
| | - Rafael Garrett da Costa
- Laboratory of Metabolomics - LabMeta/LADETEC, Institute of Chemistry, Federal University of Rio de Janeiro, RJ 21941-598, Brazil
| | - Gabriela Beserra Pinheiro
- Laboratory of Neuropharmacology, Institute of Biological Sciences, University of Brasília, Brasilia, DF 70910-900, Brazil
| | - Letícia Germino Veras
- Laboratory of Neuropharmacology, Institute of Biological Sciences, University of Brasília, Brasilia, DF 70910-900, Brazil
| | - Márcia Renata Mortari
- Laboratory of Neuropharmacology, Institute of Biological Sciences, University of Brasília, Brasilia, DF 70910-900, Brazil
| | - Letizia Pruccoli
- Department for Life Quality Studies, Alma Mater Studiorum - University of Bologna, Rimini, 47921, Italy
| | - Andrea Tarozzi
- Department for Life Quality Studies, Alma Mater Studiorum - University of Bologna, Rimini, 47921, Italy
| | - Cláudio Viegas
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, MG 37133-840, Brazil.
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21
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Cristancho Ortiz CJ, de Freitas Silva M, Pruccoli L, Fonseca Nadur N, de Azevedo LL, Kümmerle AE, Guedes IA, Dardenne LE, Leomil Coelho LF, Guimarães MJ, da Silva FMR, Castro N, Gontijo VS, Rojas VCT, de Oliveira MK, Vilela FC, Giusti-Paiva A, Barbosa G, Lima LM, Pinheiro GB, Veras LG, Mortari MR, Tarozzi A, Viegas C. Design, synthesis, and biological evaluation of new thalidomide-donepezil hybrids as neuroprotective agents targeting cholinesterases and neuroinflammation. RSC Med Chem 2022; 13:568-584. [PMID: 35694691 PMCID: PMC9132228 DOI: 10.1039/d1md00374g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 03/15/2022] [Indexed: 11/21/2022] Open
Abstract
A new series of eight multifunctional thalidomide-donepezil hybrids were synthesized based on the multi-target-directed ligand strategy and evaluated as potential neuroprotective, cholinesterase inhibitors and anti-neuroinflammatory agents against neurodegenerative diseases. A molecular hybridization approach was used for structural design by combining the N-benzylpiperidine pharmacophore of donepezil and the isoindoline-1,3-dione fragment from the thalidomide structure. The most promising compound, PQM-189 (3g), showed good AChE inhibitory activity with an IC50 value of 3.15 μM, which was predicted by docking studies as interacting with the enzyme in the same orientation observed in the AChE-donepezil complex and a similar profile of interaction. Additionally, compound 3g significantly decreased iNOS and IL-1β levels by 43% and 39%, respectively, after 24 h of incubation with lipopolysaccharide. In vivo data confirmed the ability of 3g to prevent locomotor impairment and changes in feeding behavior elicited by lipopolysaccharide. Moreover, the PAMPA assay evidenced adequate blood-brain barrier and gastrointestinal tract permeabilities with an Fa value of 69.8%. Altogether, these biological data suggest that compound 3g can treat the inflammatory process and oxidative stress resulting from the overexpression of iNOS and therefore the increase in reactive nitrogen species, and regulate the release of pro-inflammatory cytokines such as IL-1β. In this regard, compound PQM-189 (3g) was revealed to be a promising neuroprotective and anti-neuroinflammatory agent with an innovative thalidomide-donepezil-based hybrid molecular architecture.
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Affiliation(s)
- Cindy Juliet Cristancho Ortiz
- PeQuiM-Laboratory of Research in Medicinal Chemistry, Federal University of Alfenas 2600 Jovino Fernandes Sales Ave. Alfenas MG 37130-840 Brazil
| | - Matheus de Freitas Silva
- PeQuiM-Laboratory of Research in Medicinal Chemistry, Federal University of Alfenas 2600 Jovino Fernandes Sales Ave. Alfenas MG 37130-840 Brazil
| | - Letizia Pruccoli
- Department for Life Quality Studies, University of Bologna'Alma Mater Studiorum' 237 Corso d'Augusto St. 47921 Rimini Italy
| | - Nathália Fonseca Nadur
- Laboratory of Molecular Pharmacology, Institute of Biomedical Sciences, Federal University of Rio de Janeiro 21941-902 Seropédica RJ Brazil
| | - Luciana Luíza de Azevedo
- Laboratory of Molecular Pharmacology, Institute of Biomedical Sciences, Federal University of Rio de Janeiro 21941-902 Seropédica RJ Brazil
| | - Arthur Eugen Kümmerle
- Laboratory of Molecular Pharmacology, Institute of Biomedical Sciences, Federal University of Rio de Janeiro 21941-902 Seropédica RJ Brazil
| | | | | | - Luiz Felipe Leomil Coelho
- Institute of Biomedical Sciences, Federal University of Alfenas 700 Gabriel Monteiro da Silva St Alfenas MG 37130-840 Brazil
| | - Marcos J Guimarães
- Laboratory of Molecular Pharmacology, Institute of Biomedical Sciences, Federal University of Rio de Janeiro 21941-902 Rio de Janeiro/RJ Brazil
| | - Fernanda M R da Silva
- Laboratory of Molecular Pharmacology, Institute of Biomedical Sciences, Federal University of Rio de Janeiro 21941-902 Rio de Janeiro/RJ Brazil
| | - Newton Castro
- Laboratory of Molecular Pharmacology, Institute of Biomedical Sciences, Federal University of Rio de Janeiro 21941-902 Rio de Janeiro/RJ Brazil
| | - Vanessa Silva Gontijo
- PeQuiM-Laboratory of Research in Medicinal Chemistry, Federal University of Alfenas 2600 Jovino Fernandes Sales Ave. Alfenas MG 37130-840 Brazil
| | - Viviana C T Rojas
- Laboratory of Physiology, Federal University of Alfenas 2600 Jovino Fernandes Sales Avenue Alfenas MG 37130-840 Brazil
| | - Merelym Ketterym de Oliveira
- Laboratory of Physiology, Federal University of Alfenas 2600 Jovino Fernandes Sales Avenue Alfenas MG 37130-840 Brazil
| | - Fabiana Cardoso Vilela
- Laboratory of Physiology, Federal University of Alfenas 2600 Jovino Fernandes Sales Avenue Alfenas MG 37130-840 Brazil
| | - Alexandre Giusti-Paiva
- Laboratory of Physiology, Federal University of Alfenas 2600 Jovino Fernandes Sales Avenue Alfenas MG 37130-840 Brazil
| | - Gisele Barbosa
- LASSBio - Laboratório de Avaliação e Síntese de Substâncias Bioativas, Health Sciences Center, Federal University of Rio de Janeiro 21941-902 Rio de Janeiro/RJ Brazil
| | - Lídia Moreira Lima
- LASSBio - Laboratório de Avaliação e Síntese de Substâncias Bioativas, Health Sciences Center, Federal University of Rio de Janeiro 21941-902 Rio de Janeiro/RJ Brazil
| | - Gabriela Beserra Pinheiro
- Laboratory of Neuropharmacology, Institute of Biological Sciences, University of Brasília Brasilia DF 70910-900 Brazil
| | - Letícia Germino Veras
- Laboratory of Neuropharmacology, Institute of Biological Sciences, University of Brasília Brasilia DF 70910-900 Brazil
| | - Márcia Renata Mortari
- Laboratory of Neuropharmacology, Institute of Biological Sciences, University of Brasília Brasilia DF 70910-900 Brazil
| | - Andrea Tarozzi
- PeQuiM-Laboratory of Research in Medicinal Chemistry, Federal University of Alfenas 2600 Jovino Fernandes Sales Ave. Alfenas MG 37130-840 Brazil .,Department for Life Quality Studies, University of Bologna'Alma Mater Studiorum' 237 Corso d'Augusto St. 47921 Rimini Italy
| | - Claudio Viegas
- PeQuiM-Laboratory of Research in Medicinal Chemistry, Federal University of Alfenas 2600 Jovino Fernandes Sales Ave. Alfenas MG 37130-840 Brazil
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22
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Al-Ani MTH, Ulaiwi WS, Abd-Alhameed WM. Nаtural Antioxidants and their Effect on Human Health. EARTHLINE JOURNAL OF CHEMICAL SCIENCES 2022:115-129. [DOI: 10.34198/ejcs.8122.115129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Fruit, vegetables and spice antioxidants are recognized for their important role in human health against some diseases for instance cancer and cardiovascular diseases. Phenolic antioxidants, vitamins (C and E), flavonoids, and cаtеchins are among the major nаturally bioavailable antioxidants. Nаtural antioxidants positive impact on human health can be summarized on their potential to act against inflammation, bacteria, aging, oxidаtive stress and cаncer. The evaluation of antioxidants bioavailability in food and medicinal plants are essential to understand the best antioxidant sources and to elevate their use in food, pharmaceuticals and food additives.
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23
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Protection against Amyloid-β Oligomer Neurotoxicity by Small Molecules with Antioxidative Properties: Potential for the Prevention of Alzheimer’s Disease Dementia. Antioxidants (Basel) 2022; 11:antiox11010132. [PMID: 35052635 PMCID: PMC8773221 DOI: 10.3390/antiox11010132] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/02/2022] [Accepted: 01/03/2022] [Indexed: 12/29/2022] Open
Abstract
Soluble oligomeric assemblies of amyloid β-protein (Aβ), called Aβ oligomers (AβOs), have been recognized as primary pathogenetic factors in the molecular pathology of Alzheimer’s disease (AD). AβOs exert neurotoxicity and synaptotoxicity and play a critical role in the pathological progression of AD by aggravating oxidative and synaptic disturbances and tau abnormalities. As such, they are important therapeutic targets. From a therapeutic standpoint, it is not only important to clear AβOs or prevent their formation, it is also beneficial to reduce their neurotoxicity. In this regard, recent studies have reported that small molecules, most with antioxidative properties, show promise as therapeutic agents for reducing the neurotoxicity of AβOs. In this mini-review, we briefly review the significance of AβOs and oxidative stress in AD and summarize studies on small molecules with AβO-neurotoxicity-reducing effects. We also discuss mechanisms underlying the effects of these compounds against AβO neurotoxicity as well as their potential as drug candidates for the prevention and treatment of AD.
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24
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Huang Y, Liu C, Song X, An M, Liu M, Yao L, Famurewa AC, Olatunji OJ. Antioxidant and Anti-inflammatory Properties Mediate the Neuroprotective Effects of Hydro-ethanolic Extract of Tiliacora triandra Against Cisplatin-induced Neurotoxicity. J Inflamm Res 2021; 14:6735-6748. [PMID: 34916822 PMCID: PMC8668253 DOI: 10.2147/jir.s340176] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 11/20/2021] [Indexed: 12/15/2022] Open
Abstract
Background Cisplatin (CDDP) is an efficacious anticancer agent used widely in chemotherapy despite its severe side effect related to neurotoxicity. Redox imbalance and inflammatory mechanism have been implicated in the pathophysiology of CDDP-induced neurotoxicity. Herein, we investigated whether Tiliacora triandra (TT) extract could inhibit CDDP-induced redox-mediated neurotoxicity and behavioural deficit in rats. Materials and Methods CDDP-induced redox-mediated neurotoxicity and behavioral deficit in rats. Rats were administered TT for five consecutive weeks (250 and 500 mg/kg bw), while weekly i.p. injection of CDDP commenced on the second week (2.5 mg/kg bw) of the TT administration. Results CCDDP caused significant body weight reduction and cognitive diminution as revealed by Morris water maze and Y maze tests. In the CDDP-induced cognitive impairment (CICI) rats, there were remarkable increases in the brain levels of TNF-α, IL-6 and IL-1β and malondialdehyde (MDA), whereas catalase (CAT), glutathione (GSH), glutathione peroxidase (GPx) and superoxide dismutase (SOD) activities considerably decreased compared to normal control. The brain acetylcholinesterase (AChE) activity in CDDP control rats was significantly increased compared to the normal control. The expression of caspase-3 and p53 proteins was upregulated by CDDP injection, whereas Bcl2 was downregulated coupled with histopathological alterations in the rat brain. Interestingly, treatment with TT significantly abated neurobehavioral deficits, MDA and cytokine levels and restored CAT, GPx, GSH, SOD, and AChE activities compared to the CDDP control rats. Caspase-3 level as well as Bcl2 and p53 expressions were modulated with alleviated changes in histopathology. Conclusion The findings highlight neuroprotective and cognitive function improvement efficacy of TT against CICI via redox-inflammatory balance and antiapoptotic mechanism in rats.
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Affiliation(s)
- Yanping Huang
- Department of Human Anatomy, Histology and Embryology, Anhui Medical College, Hefei, 230601, People's Republic of China
| | - Chunhong Liu
- Second Peoples Hospital of Wuhu City, Wuhu, 241001, Anhui, People's Republic of China
| | - Xianbing Song
- Department of Human Anatomy, Histology and Embryology, Anhui Medical College, Hefei, 230601, People's Republic of China
| | - Mei An
- Department of Human Anatomy, Histology and Embryology, Anhui Medical College, Hefei, 230601, People's Republic of China
| | - Meimei Liu
- Department of Human Anatomy, Histology and Embryology, Anhui Medical College, Hefei, 230601, People's Republic of China
| | - Lei Yao
- Department of Human Anatomy, Histology and Embryology, Anhui Medical College, Hefei, 230601, People's Republic of China
| | - Ademola C Famurewa
- Department of Medical Biochemistry, Faculty of Basic Medical Sciences, Alex Ekwueme Federal University, Ndufu Alike Ikwo, Ebonyi State, Nigeria
| | - Opeyemi Joshua Olatunji
- Faculty of Thai Traditional Medicine, Prince of Songkla University, Hat Yai, 90110, Thailand
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25
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Zhang L, Xie Q, Li X. Esculetin: A review of its pharmacology and pharmacokinetics. Phytother Res 2021; 36:279-298. [PMID: 34808701 DOI: 10.1002/ptr.7311] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 09/12/2021] [Accepted: 09/30/2021] [Indexed: 12/30/2022]
Abstract
Esculetin is a natural dihydroxy coumarin; it is mainly extracted from twig skin and the trunk bark of the Chinese herbal medicine Fraxinus rhynchophylla Hance. Emerging evidence suggests that esculetin has a wide range of pharmacological activities. Based on its fundamental properties, including antioxidant, antiinflammatory, antiapoptotic, anticancer, antidiabetic, neuroprotective, and cardiovascular protective activities, as well as antibacterial activity, among others, esculetin is expected to be a therapeutic drug for specific disease indications, such as cancer, diabetes, atherosclerosis, Alzheimer's disease (AD), Parkinson's disease (PD), nonalcoholic fatty liver disease (NAFLD), and other diseases. The oral bioavailability of esculetin was shown by studies to be low. The extensive glucuronidation was described to be the main metabolic pathway of esculetin and C-7 phenolic hydroxyl to be its major metabolic site. With the development of scientific research technology, the pharmacological effects of esculetin are identified and its potential for the treatment of diseases is demonstrated. The underlining mechanisms of action and biological activities as well as the pharmacokinetic data of the analyzed compound reported so far are highlighted in this review with the aim of becoming a proven, and applicable insight and reference for further studies on the utilization of esculetin.
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Affiliation(s)
- Linlin Zhang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qingxuan Xie
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaofang Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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26
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Knoor ALH, Du Laney GR, Jonker IB, Hoogewerf LP, Tu Y, Pham HT, Yoo J, Muyskens MA. Aesculetin Exhibits Strong Fluorescent Photoacid Character. J Fluoresc 2021; 32:307-318. [PMID: 34787776 DOI: 10.1007/s10895-021-02842-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/18/2021] [Indexed: 11/24/2022]
Abstract
Coumarins are bioactive molecules that often serve as defenses in plant and animal systems, and understanding their fundamental behavior is essential for understanding their bioactivity. Aesculetin (6,7-dihydroxycoumarin) has recently attracted attention due to its ability to act as an antioxidant, but little is known about its photophysical properties. The fluorescence lifetimes of its neutral and anion form in water are 19 ± 2 ps and 2.3 ± 0.1 ns, respectively. Assuming the short lifetime of the neutral is determined by ESPT, we estimate kPT ~ 5 × 1010 s-1. Using steady-state and time-resolved fluorescence spectroscopy, we determine its ground and excited-state [Formula: see text] to be 7.3 and -1, respectively, making it one of the strongest photoacids of the natural coumarins. Aesculetin exhibits a strong pH dependence of the relative fluorescence quantum yield becoming much more fluorescent above [Formula: see text]. The aesculetin anion [Formula: see text] slightly photobasic character. We also report that aesculetin forms a fluorescent catechol-like complex with boric acid, and this complex has a [Formula: see text] of 5.6.
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Affiliation(s)
| | | | - Isaac B Jonker
- Calvin University, 3201 Burton St SE, Grand Rapids, MI, 49546, USA
| | - Liam P Hoogewerf
- Calvin University, 3201 Burton St SE, Grand Rapids, MI, 49546, USA
| | - Yukun Tu
- Calvin University, 3201 Burton St SE, Grand Rapids, MI, 49546, USA
| | - Hunter T Pham
- Calvin University, 3201 Burton St SE, Grand Rapids, MI, 49546, USA
| | - Joy Yoo
- Calvin University, 3201 Burton St SE, Grand Rapids, MI, 49546, USA
| | - Mark A Muyskens
- Calvin University, 3201 Burton St SE, Grand Rapids, MI, 49546, USA.
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27
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Protective effects of chrysin against the neurotoxicity induced by aluminium: In vitro and in vivo studies. Toxicology 2021; 465:153033. [PMID: 34774662 DOI: 10.1016/j.tox.2021.153033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 10/04/2021] [Accepted: 11/09/2021] [Indexed: 12/23/2022]
Abstract
Chronic exposure to aluminium (Al) can contribute to the progression of several neurological and neurodegenerative diseases. Al is a metal that promotes oxidative damage leading to neuronal death in different brain regions with behavior, cognition, and memory deficits. Chrysin is a flavonoid found mainly in honey, passion fruit, and propolis with antioxidant, anti-inflammatory, and cytoprotective properties. In this study, we used an integrated approach of in vitro and in vivo studies to evaluate the antioxidant and neuroprotective effects of chrysin against the neurotoxicity elicited by aluminium chloride (AlCl3). In in vitro studies, chrysin (5 μM) showed the ability to counteract the early oxidative stress elicited by tert-butyl hydroperoxide, an oxidant that mimics the lipid peroxidation and Fenton reaction in presence of AlCl3 as well as the late necrotic death triggered by AlCl3 in neuronal SH-SY5Y cells. In vivo studies in a mouse model of neurotoxicity induced by chronic exposure to AlCl3 (100 mg/kg/day) for ninety days then corroborated the antioxidant and neuroprotective effect of chrysin (10, 30, and 100 mg/kg/day) using the oral route. In particular, chrysin reduced the cognitive impairment induced by AlCl3 as well as normalized the acetylcholinesterase and butyrylcholinesterase activities in the hippocampus. In parallel, chrysin counteracted the oxidative damage, in terms of lipid peroxidation, protein carbonylation, catalase, and superoxide dismutase impairment, in the brain cortex and hippocampus. Lastly, necrotic cells frequency in the same brain regions was also decreased by chrysin. These results highlight the ability of chrysin to prevent the neurotoxic effects associated with chronic exposure to Al and suggest its potential use as a food supplement for brain health.
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28
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The DNA Repair Enzyme XPD Is Partially Regulated by PI3K/AKT Signaling in the Context of Bupivacaine-Mediated Neuronal DNA Damage. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:9925647. [PMID: 34659643 PMCID: PMC8516563 DOI: 10.1155/2021/9925647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 09/04/2021] [Accepted: 09/11/2021] [Indexed: 11/17/2022]
Abstract
Bupivacaine, a local anesthetic widely used for regional anesthesia and pain management, has been reported to induce neuronal injury, especially DNA damage. Neurons employ different pathways to repair DNA damage. However, the mechanism underlying bupivacaine-mediated DNA damage repair is unclear. A rat neuronal injury model was established by intrathecal injection of (3%) bupivacaine. An in vitro neuronal injury model was generated by exposing SH-SY5Y cells to bupivacaine (1.5 mmol/L). Then, a cDNA plate array was used to identify the DNA repair genes after bupivacaine exposure. The results showed that xeroderma pigmentosum complementary group D (XPD) of the nuclear excision repair (NER) pathway was closely associated with the repair of DNA damage induced by bupivacaine. Subsequently, Western blot assay and immunohistochemistry indicated that the expression of the repair enzyme XPD was upregulated after DNA damage. Downregulation of XPD expression by a lentivirus aggravated the DNA damage induced by bupivacaine. In addition, phosphatidyl-3-kinase (PI3K)/AKT signaling in neurons was inhibited after exposure to bupivacaine. After PI3K/AKT signaling was inhibited, bupivacaine-mediated DNA damage was further aggravated, and the expression of XPD was further upregulated. However, knockdown of XPD aggravated bupivacaine-mediated neuronal injury but did not affect PI3K/AKT signaling. In conclusion, the repair enzyme XPD, which was partially regulated by PI3K/AKT signaling, responded to bupivacaine-mediated neuronal DNA damage. These results can be used as a reference for the treatment of bupivacaine-induced neurotoxicity.
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29
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Esculetin Provides Neuroprotection against Mutant Huntingtin-Induced Toxicity in Huntington's Disease Models. Pharmaceuticals (Basel) 2021; 14:ph14101044. [PMID: 34681268 PMCID: PMC8541026 DOI: 10.3390/ph14101044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/06/2021] [Accepted: 10/11/2021] [Indexed: 12/26/2022] Open
Abstract
Huntington’s disease (HD) is a neurodegenerative disorder caused by an abnormal CAG trinucleotide repeat expansion within exon 1 of the huntingtin (HTT) gene. This mutation leads to the production of mutant HTT (mHTT) protein which triggers neuronal death through several mechanisms. Here, we investigated the neuroprotective effects of esculetin (ESC), a bioactive phenolic compound, in an inducible PC12 model and a transgenic Drosophila melanogaster model of HD, both of which express mHTT fragments. ESC partially inhibited the progression of mHTT aggregation and reduced neuronal death through its ability to counteract the oxidative stress and mitochondria impairment elicited by mHTT in the PC12 model. The ability of ESC to counteract neuronal death was also confirmed in the transgenic Drosophila model. Although ESC did not modify the lifespan of the transgenic Drosophila, it still seemed to have a positive impact on the HD phenotype of this model. Based on our findings, ESC may be further studied as a potential neuroprotective agent in a rodent transgenic model of HD.
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30
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Hrelia S, Angeloni C. New Mechanisms of Action of Natural Antioxidants in Health and Disease II. Antioxidants (Basel) 2021; 10:antiox10081200. [PMID: 34439447 PMCID: PMC8388864 DOI: 10.3390/antiox10081200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 07/25/2021] [Indexed: 11/16/2022] Open
Affiliation(s)
- Silvana Hrelia
- Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, Corso d’Augusto 237, 47921 Rimini, Italy;
| | - Cristina Angeloni
- School of Pharmacy, University of Camerino, Via Gentile III da Varano, 62032 Camerino, Italy
- Correspondence:
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31
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de Andrade Ramos G, Souza de Oliveira A, Bartolini M, Naldi M, Liparulo I, Bergamini C, Uliassi E, Wu L, Fraser PE, Abreu M, Kiametis AS, Gargano R, Silveira ER, Brand GD, Prchal L, Soukup O, Korábečný J, Bolognesi ML, Soares Romeiro LA. Discovery of sustainable drugs for Alzheimer's disease: cardanol-derived cholinesterase inhibitors with antioxidant and anti-amyloid properties. RSC Med Chem 2021; 12:1154-1163. [PMID: 34355181 PMCID: PMC8293282 DOI: 10.1039/d1md00046b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 03/29/2021] [Indexed: 01/21/2023] Open
Abstract
As part of our efforts to develop sustainable drugs for Alzheimer's disease (AD), we have been focusing on the inexpensive and largely available cashew nut shell liquid (CNSL) as a starting material for the identification of new acetylcholinesterase (AChE) inhibitors. Herein, we decided to investigate whether cardanol, a phenolic CNSL component, could serve as a scaffold for improved compounds with concomitant anti-amyloid and antioxidant activities. Ten new derivatives, carrying the intact phenolic function and an aminomethyl functionality, were synthesized and first tested for their inhibitory potencies towards AChE and butyrylcholinesterase (BChE). 5 and 11 were found to inhibit human BChE at a single-digit micromolar concentration. Transmission electron microscopy revealed the potential of five derivatives to modulate Aβ aggregation, including 5 and 11. In HORAC assays, 5 and 11 performed similarly to standard antioxidant ferulic acid as hydroxyl scavenging agents. Furthermore, in in vitro studies in neuronal cell cultures, 5 and 11 were found to effectively inhibit reactive oxygen species production at a 10 μM concentration. They also showed a favorable initial ADME/Tox profile. Overall, these results suggest that CNSL is a promising raw material for the development of potential disease-modifying treatments for AD.
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Affiliation(s)
- Giselle de Andrade Ramos
- Department of Pharmacy, Health Sciences Faculty, University of Brasília, Campus Universitário Darcy Ribeiro 70910-900 Brasília DF Brazil
| | - Andressa Souza de Oliveira
- Department of Pharmacy, Health Sciences Faculty, University of Brasília, Campus Universitário Darcy Ribeiro 70910-900 Brasília DF Brazil
| | - Manuela Bartolini
- Department of Pharmacy and Biotechnology, University of Bologna Via Belmeloro 6 40126 Bologna Italy
| | - Marina Naldi
- Department of Pharmacy and Biotechnology, University of Bologna Via Belmeloro 6 40126 Bologna Italy
| | - Irene Liparulo
- Department of Pharmacy and Biotechnology, University of Bologna Via Belmeloro 6 40126 Bologna Italy
| | - Christian Bergamini
- Department of Pharmacy and Biotechnology, University of Bologna Via Belmeloro 6 40126 Bologna Italy
| | - Elisa Uliassi
- Department of Pharmacy and Biotechnology, University of Bologna Via Belmeloro 6 40126 Bologna Italy
| | - Ling Wu
- Tanz Centre for Research in Neurodegenerative Diseases and Dept. of Medical Biophysics, University of Toronto Krembil Discovery Tower, 60 Leonard Avenue, 6KD-402 M5T 2S8 Toronto ON Canada
| | - Paul E Fraser
- Tanz Centre for Research in Neurodegenerative Diseases and Dept. of Medical Biophysics, University of Toronto Krembil Discovery Tower, 60 Leonard Avenue, 6KD-402 M5T 2S8 Toronto ON Canada
| | - Monica Abreu
- Physics Institute, University of Brasília, Campus Universitário Darcy Ribeiro 70910-900 Brasília DF Brazil
| | - Alessandra Sofia Kiametis
- Physics Institute, University of Brasília, Campus Universitário Darcy Ribeiro 70910-900 Brasília DF Brazil
| | - Ricardo Gargano
- Physics Institute, University of Brasília, Campus Universitário Darcy Ribeiro 70910-900 Brasília DF Brazil
| | - Edilberto Rocha Silveira
- CENAUREMN, Department of Organic and Inorganic Chemistry, Federal University of Ceará 60021-970 Fortaleza CE Brazil
| | - Guilherme D Brand
- Chemistry Institute, University of Brasília, Campus Universitário Darcy Ribeiro 70910-900 Brasília DF Brazil
| | - Lukas Prchal
- Biomedical Research Centre, University Hospital Hradec Kralove Sokolska 581, 500 05 Hradec Kralove Czech Republic
| | - Ondřej Soukup
- Biomedical Research Centre, University Hospital Hradec Kralove Sokolska 581, 500 05 Hradec Kralove Czech Republic
- Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defence Trebesska 1575, 500 01 Hradec Kralove Czech Republic
| | - Jan Korábečný
- Biomedical Research Centre, University Hospital Hradec Kralove Sokolska 581, 500 05 Hradec Kralove Czech Republic
- Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defence Trebesska 1575, 500 01 Hradec Kralove Czech Republic
| | - Maria Laura Bolognesi
- Department of Pharmacy and Biotechnology, University of Bologna Via Belmeloro 6 40126 Bologna Italy
| | - Luiz Antonio Soares Romeiro
- Department of Pharmacy, Health Sciences Faculty, University of Brasília, Campus Universitário Darcy Ribeiro 70910-900 Brasília DF Brazil
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32
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Mzezewa SC, Omoruyi SI, Zondagh LS, Malan SF, Ekpo OE, Joubert J. Design, synthesis, and evaluation of 3,7-substituted coumarin derivatives as multifunctional Alzheimer's disease agents. J Enzyme Inhib Med Chem 2021; 36:1607-1621. [PMID: 34281458 PMCID: PMC8291583 DOI: 10.1080/14756366.2021.1913137] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
Multitarget directed ligands (MTDLs) are emerging as promising treatment options for Alzheimer's disease (AD). Coumarin derivatives serve as a good starting point for designing MTDLs due to their inherent inhibition of monoamine oxidase (MAO) and cholinesterase enzymes, which are complicit in AD's complex pathophysiology. A preliminary series of 3,7-substituted coumarin derivatives were synthesised and evaluated for enzyme inhibitory activity, cytotoxicity as well as neuroprotective ability. The results indicated that the compounds are weak cholinesterase inhibitors with five compounds demonstrating relatively potent inhibition and selectivity towards MAO-B with IC50 values between 0.014 and 0.498 hx00B5;µM. Significant neuroprotective effects towards MPP+-compromised SH-SY5Y neuroblastoma cells were also observed, with no inherent cytotoxicity at 10 µM for all compounds. The overall results demonstrated that substitution of the phenylethyloxy moiety at the 7-position imparted superior general activity to the derivatives, with the propargylamine substitution at the 3-position, in particular, displaying the best MAO-B selectivity and neuroprotection.
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Affiliation(s)
- Sheunopa C Mzezewa
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of the Western Cape, Bellville, South Africa
| | - Sylvester I Omoruyi
- Department of Medical Biosciences, University of the Western Cape, Bellville, South Africa
| | - Luke S Zondagh
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of the Western Cape, Bellville, South Africa
| | - Sarel F Malan
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of the Western Cape, Bellville, South Africa
| | - Okobi E Ekpo
- Department of Medical Biosciences, University of the Western Cape, Bellville, South Africa
| | - Jacques Joubert
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of the Western Cape, Bellville, South Africa
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33
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Andreev S, Pantsar T, Tesch R, Kahlke N, El-Gokha A, Ansideri F, Grätz L, Romasco J, Sita G, Geibel C, Lämmerhofer M, Tarozzi A, Knapp S, Laufer SA, Koch P. Addressing a Trapped High-Energy Water: Design and Synthesis of Highly Potent Pyrimidoindole-Based Glycogen Synthase Kinase-3β Inhibitors. J Med Chem 2021; 65:1283-1301. [PMID: 34213342 DOI: 10.1021/acs.jmedchem.0c02146] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In small molecule binding, water is not a passive bystander but rather takes an active role in the binding site, which may be decisive for the potency of the inhibitor. Here, by addressing a high-energy water, we improved the IC50 value of our co-crystallized glycogen synthase kinase-3β (GSK-3β) inhibitor by nearly two orders of magnitude. Surprisingly, our results demonstrate that this high-energy water was not displaced by our potent inhibitor (S)-3-(3-((7-ethynyl-9H-pyrimido[4,5-b]indol-4-yl)(methyl)amino)piperidin-1-yl)propanenitrile ((S)-15, IC50 value of 6 nM). Instead, only a subtle shift in the location of this water molecule resulted in a dramatic decrease in the energy of this high-energy hydration site, as shown by the WaterMap analysis combined with microsecond timescale molecular dynamics simulations. (S)-15 demonstrated both a favorable kinome selectivity profile and target engagement in a cellular environment and reduced GSK-3 autophosphorylation in neuronal SH-SY5Y cells. Overall, our findings highlight that even a slight adjustment in the location of a high-energy water can be decisive for ligand binding.
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Affiliation(s)
- Stanislav Andreev
- Institute of Pharmaceutical Sciences, Department of Medicinal and Pharmaceutical Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Tatu Pantsar
- Institute of Pharmaceutical Sciences, Department of Medicinal and Pharmaceutical Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany.,School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
| | - Roberta Tesch
- Institute for Pharmaceutical Chemistry, Goethe University, Max-von-Laue-Straße 9, 60438 Frankfurt am Main, Germany.,Structural Genomics Consortium, Buchmann Institute for Life Sciences, Goethe University, Max-von-Laue-Straße 15, 60438 Frankfurt am Main, Germany
| | - Niclas Kahlke
- Institute of Pharmaceutical Sciences, Department of Medicinal and Pharmaceutical Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Ahmed El-Gokha
- Institute of Pharmaceutical Sciences, Department of Medicinal and Pharmaceutical Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany.,Chemistry Department, Faculty of Science, Menoufia University, Gamal Abdel-Nasser Street, 32511 Shebin El-Kom, Egypt
| | - Francesco Ansideri
- Institute of Pharmaceutical Sciences, Department of Medicinal and Pharmaceutical Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Lukas Grätz
- Department of Pharmaceutical/Medicinal Chemistry II, Institute of Pharmacy, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
| | - Jenny Romasco
- Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, Corso D'Augusto 237, 47921 Rimini, Italy
| | - Giulia Sita
- Department of Pharmacy and Biotechnology, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy
| | - Christian Geibel
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical (Bio-)Analysis, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Michael Lämmerhofer
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical (Bio-)Analysis, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Andrea Tarozzi
- Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, Corso D'Augusto 237, 47921 Rimini, Italy
| | - Stefan Knapp
- Institute for Pharmaceutical Chemistry, Goethe University, Max-von-Laue-Straße 9, 60438 Frankfurt am Main, Germany.,Structural Genomics Consortium, Buchmann Institute for Life Sciences, Goethe University, Max-von-Laue-Straße 15, 60438 Frankfurt am Main, Germany
| | - Stefan A Laufer
- Institute of Pharmaceutical Sciences, Department of Medicinal and Pharmaceutical Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany.,Tübingen Center for Academic Drug Discovery (TüCAD2), Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Pierre Koch
- Institute of Pharmaceutical Sciences, Department of Medicinal and Pharmaceutical Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany.,Department of Pharmaceutical/Medicinal Chemistry II, Institute of Pharmacy, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
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34
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Qu L, Ji L, Wang C, Luo H, Li S, Peng W, Yin F, Lu D, Liu X, Kong L, Wang X. Synthesis and evaluation of multi-target-directed ligands with BACE-1 inhibitory and Nrf2 agonist activities as potential agents against Alzheimer's disease. Eur J Med Chem 2021; 219:113441. [PMID: 33862517 DOI: 10.1016/j.ejmech.2021.113441] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/15/2021] [Accepted: 03/31/2021] [Indexed: 12/17/2022]
Abstract
Cumulative evidence suggests that β-amyloid and oxidative stress are closely related with each other and play key roles in the process of Alzheimer's disease (AD). Multitarget regulation of both pathways might represent a promising therapeutic strategy. Here, a series of selenium-containing compounds based on ebselen and verubecestat were designed and synthesized. Biological evaluation showed that 13f exhibited good BACE-1 inhibitory activity (IC50 = 1.06 μΜ) and potent GPx-like activity (ν0 = 183.0 μM min-1). Aβ production experiment indicated that 13f could reduce the secretion of Aβ1-40 in HEK APPswe 293T cells. Moreover, 13f exerted a cytoprotective effect against the H2O2 or 6-OHDA caused cell damage via alleviation of intracellular ROS, mitochondrial dysfunction, Ca2+ overload and cell apoptosis. The mechanism studies indicated that 13f exhibited cytoprotective effect by activating the Keap1-Nrf2-ARE pathway and stimulating downstream anti-oxidant protein including HO-1, NQO1, TrxR1, GCLC, and GCLM. In addition, 13f significantly reduced the production of NO and IL-6 induced by LPS in BV2 cells, which confirmed its anti-inflammatory activity as a Nrf2 activator. The BBB permeation assay predicted that 13f was able to cross the BBB. In summary, 13f might be a promising multi-target-directed ligand for the treatment of AD.
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Affiliation(s)
- Lailiang Qu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Limei Ji
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Cheng Wang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Heng Luo
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Shang Li
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Wan Peng
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Fucheng Yin
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Dehua Lu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Xingchen Liu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Lingyi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China.
| | - Xiaobing Wang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China.
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35
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Ji L, Qu L, Wang C, Peng W, Li S, Yang H, Luo H, Yin F, Lu D, Liu X, Kong L, Wang X. Identification and optimization of piperlongumine analogues as potential antioxidant and anti-inflammatory agents via activation of Nrf2. Eur J Med Chem 2021; 210:112965. [PMID: 33148493 DOI: 10.1016/j.ejmech.2020.112965] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/14/2020] [Accepted: 10/21/2020] [Indexed: 02/07/2023]
Abstract
Oxidative stress and inflammation are significant risk factors for neurodegenerative disease. The Keap1-Nrf2-ARE pathway is one of the most promising defensive systems against oxidative stress. Here, dozens of piperlongumine analogues were designed, synthesized, and tested on PC12 cells to examine neuroprotective effects against H2O2 and 6-OHDA induced damage. Among them, 6d was found to be able to alleviate the accumulation of ROS, inhibit the production of NO and downregulate the level of IL-6, which indicated its potential antioxidant and anti-inflammatory activity. Further studies proved that 6d could activate Nrf2 signaling pathway, induce the translocation of Nrf2 from cell cytosol to nucleus and upregulate the related phase II antioxidant enzymes including NQO1, HO-1, GCLC, GCLM and TrxR1. These results confirmed that 6d exerted antioxidant and anti-inflammatory activities by activating Nrf2 signaling pathway. Moreover, the parallel artificial membrane permeability assay indicated that 6d can cross the blood-brain barrier. In general, 6d is promising for further development as a therapeutic drug against oxidative stress and inflammation related neurodegenerative disorders.
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Affiliation(s)
- Limei Ji
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Lailiang Qu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Cheng Wang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Wan Peng
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Shang Li
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Huali Yang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Heng Luo
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Fucheng Yin
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Dehua Lu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Xingchen Liu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Lingyi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
| | - Xiaobing Wang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
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36
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Boudreau A, Richard AJ, Harvey I, Stephens JM. Artemisia scoparia and Metabolic Health: Untapped Potential of an Ancient Remedy for Modern Use. Front Endocrinol (Lausanne) 2021; 12:727061. [PMID: 35211087 PMCID: PMC8861327 DOI: 10.3389/fendo.2021.727061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 12/16/2021] [Indexed: 11/19/2022] Open
Abstract
Botanicals have a long history of medicinal use for a multitude of ailments, and many modern pharmaceuticals were originally isolated from plants or derived from phytochemicals. Among these, artemisinin, first isolated from Artemisia annua, is the foundation for standard anti-malarial therapies. Plants of the genus Artemisia are among the most common herbal remedies across Asia and Central Europe. The species Artemisia scoparia (SCOPA) is widely used in traditional folk medicine for various liver diseases and inflammatory conditions, as well as for infections, fever, pain, cancer, and diabetes. Modern in vivo and in vitro studies have now investigated SCOPA's effects on these pathologies and its ability to mitigate hepatotoxicity, oxidative stress, obesity, diabetes, and other disease states. This review focuses on the effects of SCOPA that are particularly relevant to metabolic health. Indeed, in recent years, an ethanolic extract of SCOPA has been shown to enhance differentiation of cultured adipocytes and to share some properties of thiazolidinediones (TZDs), a class of insulin-sensitizing agonists of the adipogenic transcription factor PPARγ. In a mouse model of diet-induced obesity, SCOPA diet supplementation lowered fasting insulin and glucose levels, while inducing metabolically favorable changes in adipose tissue and liver. These observations are consistent with many lines of evidence from various tissues and cell types known to contribute to metabolic homeostasis, including immune cells, hepatocytes, and pancreatic beta-cells. Compounds belonging to several classes of phytochemicals have been implicated in these effects, and we provide an overview of these bioactives. The ongoing global epidemics of obesity and metabolic disease clearly require novel therapeutic approaches. While the mechanisms involved in SCOPA's effects on metabolic, anti-inflammatory, and oxidative stress pathways are not fully characterized, current data support further investigation of this plant and its bioactives as potential therapeutic agents in obesity-related metabolic dysfunction and many other conditions.
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Affiliation(s)
- Anik Boudreau
- Adipocyte Biology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, United States
| | - Allison J. Richard
- Adipocyte Biology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, United States
| | - Innocence Harvey
- Adipocyte Biology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, United States
| | - Jacqueline M. Stephens
- Adipocyte Biology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, United States
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, United States
- *Correspondence: Jacqueline M. Stephens,
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37
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Andreev S, Pantsar T, El-Gokha A, Ansideri F, Kudolo M, Anton DB, Sita G, Romasco J, Geibel C, Lämmerhofer M, Goettert MI, Tarozzi A, Laufer SA, Koch P. Discovery and Evaluation of Enantiopure 9 H-pyrimido[4,5- b]indoles as Nanomolar GSK-3β Inhibitors with Improved Metabolic Stability. Int J Mol Sci 2020; 21:ijms21217823. [PMID: 33105671 PMCID: PMC7659979 DOI: 10.3390/ijms21217823] [Citation(s) in RCA: 6] [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: 09/10/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 12/25/2022] Open
Abstract
Glycogen synthase kinase-3β (GSK-3β) is a potential target in the field of Alzheimer's disease drug discovery. We recently reported a new class of 9H-pyrimido[4,5-b]indole-based GSK-3β inhibitors, of which 3-(3-((7-chloro-9H-pyrimido[4,5-b]indol-4-yl)(methyl)amino)piperidin-1-yl)propanenitrile (1) demonstrated promising inhibitory potency. However, this compound underwent rapid degradation by human liver microsomes. Starting from 1, we prepared a series of amide-based derivatives and studied their structure-activity relationships against GSK-3β supported by 1 µs molecular dynamics simulations. The biological potency of this series was substantially enhanced by identifying the eutomer configuration at the stereocenter. Moreover, the introduction of an amide bond proved to be an effective strategy to eliminate the metabolic hotspot. The most potent compounds, (R)-3-(3-((7-chloro-9H-pyrimido[4,5-b]indol-4-yl)(methyl)amino)piperidin-1-yl)-3-oxopropanenitrile ((R)-2) and (R)-1-(3-((7-bromo-9Hpyrimido[4,5-b]indol-4-yl)(methyl)amino)piperidin-1-yl)propan-1-one ((R)-28), exhibited IC50 values of 480 nM and 360 nM, respectively, and displayed improved metabolic stability. Their favorable biological profile is complemented by minimal cytotoxicity and neuroprotective properties.
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Affiliation(s)
- Stanislav Andreev
- Institute of Pharmaceutical Sciences, Department of Medicinal and Pharmaceutical Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany; (S.A.); (T.P.); (A.E.-G.); (F.A.); (M.K.); (S.A.L.)
| | - Tatu Pantsar
- Institute of Pharmaceutical Sciences, Department of Medicinal and Pharmaceutical Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany; (S.A.); (T.P.); (A.E.-G.); (F.A.); (M.K.); (S.A.L.)
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
| | - Ahmed El-Gokha
- Institute of Pharmaceutical Sciences, Department of Medicinal and Pharmaceutical Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany; (S.A.); (T.P.); (A.E.-G.); (F.A.); (M.K.); (S.A.L.)
- Chemistry Department, Faculty of Science, Menoufia University, Gamal Abdel-Nasser Street, Shebin El-Kom 32511, Egypt
| | - Francesco Ansideri
- Institute of Pharmaceutical Sciences, Department of Medicinal and Pharmaceutical Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany; (S.A.); (T.P.); (A.E.-G.); (F.A.); (M.K.); (S.A.L.)
| | - Mark Kudolo
- Institute of Pharmaceutical Sciences, Department of Medicinal and Pharmaceutical Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany; (S.A.); (T.P.); (A.E.-G.); (F.A.); (M.K.); (S.A.L.)
| | - Débora Bublitz Anton
- Cell Culture Laboratory, Postgraduate Program in Biotechnology, University of Vale do Taquari (Univates), Lajeado 95914-014, Brazil; (D.B.A.); (M.I.G.)
| | - Giulia Sita
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum, University of Bologna, Via Irnerio, 48, 40126 Bologna, Italy;
| | - Jenny Romasco
- Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, Corso D’Augusto, 237, 47921 Rimini, Italy; (J.R.); (A.T.)
| | - Christian Geibel
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical (Bio-)Analysis, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany; (C.G.); (M.L.)
| | - Michael Lämmerhofer
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical (Bio-)Analysis, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany; (C.G.); (M.L.)
| | - Márcia Ines Goettert
- Cell Culture Laboratory, Postgraduate Program in Biotechnology, University of Vale do Taquari (Univates), Lajeado 95914-014, Brazil; (D.B.A.); (M.I.G.)
| | - Andrea Tarozzi
- Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, Corso D’Augusto, 237, 47921 Rimini, Italy; (J.R.); (A.T.)
| | - Stefan A. Laufer
- Institute of Pharmaceutical Sciences, Department of Medicinal and Pharmaceutical Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany; (S.A.); (T.P.); (A.E.-G.); (F.A.); (M.K.); (S.A.L.)
| | - Pierre Koch
- Institute of Pharmaceutical Sciences, Department of Medicinal and Pharmaceutical Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany; (S.A.); (T.P.); (A.E.-G.); (F.A.); (M.K.); (S.A.L.)
- Department of Pharmaceutical/Medicinal Chemistry II, Institute of Pharmacy, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
- Correspondence: ; Tel.: +49-(941)-943-2847
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