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Osakabe N, Fushimi T, Fujii Y. Hormetic response to B-type procyanidin ingestion involves stress-related neuromodulation via the gut-brain axis: Preclinical and clinical observations. Front Nutr 2022; 9:969823. [PMID: 36159457 PMCID: PMC9491694 DOI: 10.3389/fnut.2022.969823] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 08/22/2022] [Indexed: 11/30/2022] Open
Abstract
B-type procyanidins, a series of catechin oligomers, are among the most ingested polyphenols in the human diet. Results of meta-analyses have suggested that intake of B-type procyanidins reduces cardiovascular disease risk. Another recent focus has been on the effects of B-type procyanidins on central nervous system (CNS) function. Although long-term B-type procyanidin ingestion is linked to health benefits, a single oral intake has been reported to cause physiological alterations in circulation, metabolism, and the CNS. Comprehensive analyses of previous reports indicate an optimal mid-range dose for the hemodynamic effects of B-type procyanidins, with null responses at lower or higher doses, suggesting hormesis. Indeed, polyphenols, including B-type procyanidins, elicit hormetic responses in vitro, but animal and clinical studies are limited. Hormesis of hemodynamic and metabolic responses to B-type procyanidins was recently confirmed in animal studies, however, and our work has linked these effects to the CNS. Here, we evaluate the hormetic response elicited by B-type procyanidins, recontextualizing the results of intervention trials. In addition, we discuss the possibility that this hormetic response to B-type procyanidins arises via CNS neurotransmitter receptors. We have verified the direction of future research for B-type procyanidins in this review.
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Affiliation(s)
- Naomi Osakabe
- Functional Control Systems, Graduate School of Engineering and Science, Shibaura Institute of Technology, Saitama, Japan
- Department of Bio-Science and Engineering, Shibaura Institute of Technology, Saitama, Japan
- *Correspondence: Naomi Osakabe,
| | - Taiki Fushimi
- Functional Control Systems, Graduate School of Engineering and Science, Shibaura Institute of Technology, Saitama, Japan
| | - Yasuyuki Fujii
- Functional Control Systems, Graduate School of Engineering and Science, Shibaura Institute of Technology, Saitama, Japan
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2
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Jug U, Naumoska K, Malovrh T. Japanese Knotweed Rhizome Bark Extract Inhibits Live SARS-CoV-2 In Vitro. Bioengineering (Basel) 2022; 9:bioengineering9090429. [PMID: 36134975 PMCID: PMC9495978 DOI: 10.3390/bioengineering9090429] [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: 07/20/2022] [Revised: 08/12/2022] [Accepted: 08/23/2022] [Indexed: 11/25/2022] Open
Abstract
Coronavirus disease 2019 (COVID-19), a viral infectious respiratory disease, is caused by highly contagious severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and is responsible for the ongoing COVID-19 pandemic. Since very few drugs are known to be effective against SARS-CoV-2, there is a general need for new therapeutics, including plant-based drugs, for the prophylaxis and treatment of infections. In the current study, the activity of a 70% ethanolic(aq) extract of the rhizome bark of Japanese knotweed, an invasive alien plant species, was tested for the first time against the wild-type SARS-CoV-2 virus using a specific and robust virus neutralization test (VNT) on Vero-E6 cells, which best mimics the mechanism of real virus−host interaction. A statistically significant antiviral effect against SARS-CoV-2 (p-value < 0.05) was observed for the 50.8 µg mL−1 extract solution in cell medium. A suitable extract preparation was described to avoid loss of polyphenols throughout filtration of the extract, which was dissolved in cell medium containing fetal bovine serum (FBS). The significance of the differences between the sums of the test and control groups in the incidence of cytopathic effects (CPE) was determined using the one-way ANOVA test. A dose−response relationship was observed, with the cytotoxic effect occurring at higher concentrations of the extract (≥101.6 µg mL−1). The obtained results suggest possible use of this plant material for the production of various products (e.g., packaging, hygiene products, biodisinfectants, etc.) that would be useful against the spread of and for self-protection against COVID-19.
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Affiliation(s)
- Urška Jug
- Laboratory for Food Chemistry, Department of Analytical Chemistry, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
- Correspondence: (U.J.); (K.N.); (T.M.); Tel.: +386-1-4760-521 (U.J. & K.N.); +386-1-4779-824 (T.M.)
| | - Katerina Naumoska
- Laboratory for Food Chemistry, Department of Analytical Chemistry, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
- Correspondence: (U.J.); (K.N.); (T.M.); Tel.: +386-1-4760-521 (U.J. & K.N.); +386-1-4779-824 (T.M.)
| | - Tadej Malovrh
- Veterinary Faculty, University of Ljubljana, Gerbičeva ulica 60, 1000 Ljubljana, Slovenia
- Correspondence: (U.J.); (K.N.); (T.M.); Tel.: +386-1-4760-521 (U.J. & K.N.); +386-1-4779-824 (T.M.)
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3
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Maciel-Silva VL, da Rocha CQ, Alencar LMR, Castelo-Branco PV, Sousa IHD, Azevedo-Santos AP, Vale AAM, Monteiro SG, Soares REP, Guimarães SJA, Nascimento JRD, Pereira SRF. Unusual dimeric flavonoids (brachydins) induce ultrastructural membrane alterations associated with antitumor activity in cancer cell lines. Drug Chem Toxicol 2022:1-12. [PMID: 35635136 DOI: 10.1080/01480545.2022.2080217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Notwithstanding the advances in molecular target-based drugs, chemotherapy remains the most common cancer treatment, despite its high toxicity. Consequently, effective anticancer therapies with fewer adverse effects are needed. Therefore, this study aimed to determine the anticancer activity of the dichloromethane fraction (DCMF) isolated from Arrabidae brachypoda roots, whose components are three unusual dimeric flavonoids. The toxicity of DCMF was investigated in breast (MCF-7), prostate (DU145), and cervical (HeLa) tumor cells, as well as non-tumor cells (PNT2), using sulforhodamine B (cell viability), Comet (genotoxicity), clonogenicity (reproductive capacity) and wound healing (cell migration) assays, and atomic force microscopy (AFM) for ultrastructural cell membrane alterations. Molecular docking revealed affinity between albumin and each rare flavonoid, supporting the impact of fetal bovine serum in DCMF antitumor activity. The IC50 values for MCF7, HeLa, and DU145 were 2.77, 2.46, and 2.51 µg/mL, respectively, and 4.08 µg/mL for PNT2. DCFM was not genotoxic to tumor or normal cells when exposed to twice the IC50 for up to 24 h, but it inhibited tumor cell migration and reproduction compared to normal cells. Additionally, AFM revealed alterations in the ultrastructure of tumor nuclear membrane surfaces, with a positive correlation between DCMF concentration and tumor cell roughness. Finally, we found a negative correlation between roughness and the ability of DCMF-treated tumor cells to migrate and form colonies with more than 50 cells. These findings suggest that DCFM acts by causing ultrastructural changes in tumor cell membranes while having fewer toxicological effects on normal cells.
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Affiliation(s)
- Vera Lucia Maciel-Silva
- Postgraduate Program in Biodiversity and Biotechnology-Bionorte, Federal University of Maranhão, São Luis, Brazil.,Laboratory of Genetics and Molecular Biology, Department of Biology, Federal University of Maranhão, São Luis, Brazil.,Department of Biology, State University of Maranhão, São Luis, Brazil
| | - Claudia Quintino da Rocha
- Laboratory of Natural Products, Department of Chemistry, Federal University of Maranhão, São Luís, Brazil
| | | | | | - Israel Higino de Sousa
- Laboratory of Genetics and Molecular Biology, Department of Biology, Federal University of Maranhão, São Luis, Brazil
| | - Ana Paula Azevedo-Santos
- Laboratory of Immunology Applied to Cancer, Department of Physiological Sciences, Federal University of Maranhão, São Luis, Brazil
| | - André Alvares Marques Vale
- Laboratory of Immunology Applied to Cancer, Department of Physiological Sciences, Federal University of Maranhão, São Luis, Brazil.,Postgraduate Program in Health Sciences, Federal University of Maranhão, Maranhão, Brazil
| | - Silvio Gomes Monteiro
- Laboratory of Genetics and Molecular Biology, Department of Biology, Federal University of Maranhão, São Luis, Brazil
| | - Rossy-Eric Pereira Soares
- Laboratory of Genetics and Molecular Biology, Department of Biology, Federal University of Maranhão, São Luis, Brazil
| | - Sulayne Janayna Araujo Guimarães
- Laboratory of Immunology Applied to Cancer, Department of Physiological Sciences, Federal University of Maranhão, São Luis, Brazil.,Postgraduate Program in Health Sciences, Federal University of Maranhão, Maranhão, Brazil
| | | | - Silma Regina Ferreira Pereira
- Laboratory of Genetics and Molecular Biology, Department of Biology, Federal University of Maranhão, São Luis, Brazil
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Zhao L, Jin X, Li Y, Yu Y, He L, Liu R. Effects of A-type oligomer procyanidins on protein glycation using two glycation models coupled with spectroscopy, chromatography, and molecular docking. Food Res Int 2022; 155:111068. [DOI: 10.1016/j.foodres.2022.111068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 02/07/2022] [Accepted: 02/23/2022] [Indexed: 11/04/2022]
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Ma X, Li M, Lu G, Wang R, Wei Y, Guo Y, Yu Y, Jiang C. Anti-inflammation of epicatechin mediated by TMEM35A and TMPO in bovine mammary epithelial cell line cells and mouse mammary gland. J Dairy Sci 2021; 104:12925-12938. [PMID: 34593235 DOI: 10.3168/jds.2021-20571] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 08/11/2021] [Indexed: 12/21/2022]
Abstract
Epicatechin (EC) has significant antiinflammation, antioxidation, and anticancer activities. It also provides a new alternative treatment for mastitis, which can result in great economic losses in the dairy industry if left untreated. The purpose of this study was to investigate the anti-inflammatory effects of EC on mastitis and the underlying mechanism using in vivo and in vitro systems. The use of ELISA and immunohistochemistry assays showed that EC treatment at 1.5, 7.5, 15, and 30 mg/mL decreased protein expression of inflammatory mediators, including cyclooxygenase-2 and inducible nitric oxide synthase; inflammatory cytokines, which were composed of IL-1β, TNF-α, and IL-6 in lipopolysaccharide (LPS)-stimulated bovine mammary epithelial cell line (MAC-T); and mouse mammary gland, together with reduced filtration of T lymphocytes in the mouse mammary gland. Furthermore, EC treatment reduced LPS-induced phosphorylation levels of p65 and inhibitor of NF-κB, and blocked nuclear translocation of p65 as revealed by western blot and immunofluorescence test in MAC-T cells and the mouse mammary gland. Epicatechin also attenuated LPS-induced phosphorylation levels of mitogen-activated protein kinase members (i.e., p38, c-Jun N-terminal kinase 1/2 and extracellular regulated protein kinases 1/2). Using RNA-seq and tandem mass tag analyses, upregulation of TMEM35A and TMPO proteins was disclosed in MAC-T cells cotreated with LPS and EC. Although clustered regularly interspaced short palindromic repeats/Cas9-based knockdown of TMEM35A and TMPO attenuated abundance of phosphorylated (p)-p65, p-p38, TNF-α, and iNOS, overexpression of TMEM35A reversed EC-mediated effects in TMPO knockdown cells. Moreover, interaction between TMEM35A and TMPO was detected using the co-immunoprecipitation method. In conclusion, our data demonstrated that EC inhibited LPS-induced inflammatory response in MAC-T cells and the mouse mammary gland. Importantly, TMEM35A mediated the transmembrane transport of EC, and the interaction between TMEM35A and TMPO inhibited MAPK and NF-κB pathways.
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Affiliation(s)
- Xiao Ma
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Manman Li
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Guicong Lu
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Ruihong Wang
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Yunmin Wei
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Yanfeng Guo
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Yongxiong Yu
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China.
| | - Caode Jiang
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China.
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Graham GG, Scott KF. Limitations of drug concentrations used in cell culture studies for understanding clinical responses of NSAIDs. Inflammopharmacology 2021; 29:1261-1278. [PMID: 34510275 DOI: 10.1007/s10787-021-00871-2] [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: 06/13/2021] [Accepted: 08/21/2021] [Indexed: 02/02/2023]
Abstract
In this review, the in vitro cellular effects of six nonsteroidal anti-inflammatory drugs (NSAIDs), salicylate, ibuprofen, naproxen, indomethacin, celecoxib and diclofenac, are examined. Inhibition of prostanoid synthesis in vitro generally occurs within the therapeutic range of plasma concentrations that are observed in vivo, consistent with the major action of NSAIDs being inhibition of prostanoid production. An additional probable cellular action of NSAIDs has been discovered recently, viz. decreased oxidation of the endocannabinoids, 2-arachidonoyl glycerol and arachidonyl ethanolamide. Many effects of NSAIDs, other than decreased oxidation of arachidonic acid and endocannabinoids, have been put forward but almost all of these additional processes are observed at supratherapeutic concentrations when the concentration of albumin, the major protein that binds NSAIDs, is taken into account. However, one exception is salicylate, a very potent inhibitor of the neutrophilic enzyme, myeloperoxidase, the inhibition of which leads to reduced production of the inflammatory mediator, hypochlorous acid, and inhibition of the inflammation associated with rheumatoid arthritis.
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Affiliation(s)
- Garry G Graham
- Department of Clinical Pharmacology, St Vincent's Hospital Sydney, Darlinghurst, NSW, 2010, Australia. .,School of Medical Sciences, University of New South Wales, Kensington, NSW, 2052, Australia.
| | - Kieran F Scott
- School of Medicine, Western Sydney University, Campbelltown, NSW, Australia. .,Ingham Institute of Applied Medical Research, 1 Campbell St, Liverpool, NSW, 2170, Australia.
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