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Kobaek-Larsen M, Deding U, Al-Najami I, Clausen BH, Christensen LP. Carrot Juice Intake Affects the Cytokine and Chemokine Response in Human Blood after Ex Vivo Lipopolysaccharide-Induced Inflammation. Nutrients 2023; 15:5002. [PMID: 38068860 PMCID: PMC10707883 DOI: 10.3390/nu15235002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 11/29/2023] [Accepted: 11/30/2023] [Indexed: 12/18/2023] Open
Abstract
In vitro and animal studies have shown that carrot juice containing bioactive natural products, such as falcarinol (FaOH) and falcarindiol (FaDOH), can affect inflammation. The present study was designed to test whether oral intake of carrot juice containing the bioactive acetylenic oxylipins FaOH and FaDOH affects mediators of acute inflammation or the innate immune response in human blood. Carrot juice (500 mL) was administered orally to healthy volunteers, and blood samples were drawn before and 1 h after juice intake. Next, the blood samples were split in two, and one sample was stimulated ex vivo with lipopolysaccharide (LPS) and incubated at 37 °C for 24 h. The concentrations of 44 inflammatory cytokines and chemokines were examined using multiplex electrochemiluminescence analysis. In blood samples not stimulated with LPS, a significant increase in IL-15 was measured 1 h after carrot juice intake. Cytokines like IFN-ɣ, IL-12/IL-23(p40), IL-23, IL-17A, IL-17B, IL-17D, and IL-22 were significantly increased in LPS-stimulated blood samples after carrot juice intake. The upregulation of the immunostimulating cytokines belonging to the IL-23/IL-17 Th17 axis suggests that carrot juice intake could benefit diseases where inflammation plays a role, like in the early stages of diabetes or cancers.
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Affiliation(s)
- Morten Kobaek-Larsen
- Department of Surgery, Odense University Hospital, DK-5000 Odense C, Denmark; (M.K.-L.); (U.D.); (I.A.-N.)
- Department of Clinical Research, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Ulrik Deding
- Department of Surgery, Odense University Hospital, DK-5000 Odense C, Denmark; (M.K.-L.); (U.D.); (I.A.-N.)
- Department of Clinical Research, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Issam Al-Najami
- Department of Surgery, Odense University Hospital, DK-5000 Odense C, Denmark; (M.K.-L.); (U.D.); (I.A.-N.)
- Department of Clinical Research, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Bettina Hjelm Clausen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, DK-5000 Odense C, Denmark;
| | - Lars Porskjær Christensen
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, DK-5230 Odense M, Denmark
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Alfurayhi R, Huang L, Brandt K. Pathways Affected by Falcarinol-Type Polyacetylenes and Implications for Their Anti-Inflammatory Function and Potential in Cancer Chemoprevention. Foods 2023; 12:1192. [PMID: 36981118 PMCID: PMC10048309 DOI: 10.3390/foods12061192] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/05/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023] Open
Abstract
Polyacetylene phytochemicals are emerging as potentially responsible for the chemoprotective effects of consuming apiaceous vegetables. There is some evidence suggesting that polyacetylenes (PAs) impact carcinogenesis by influencing a wide variety of signalling pathways, which are important in regulating inflammation, apoptosis, cell cycle regulation, etc. Studies have shown a correlation between human dietary intake of PA-rich vegetables with a reduced risk of inflammation and cancer. PA supplementation can influence cell growth, gene expression and immunological responses, and has been shown to reduce the tumour number in rat and mouse models. Cancer chemoprevention by dietary PAs involves several mechanisms, including effects on inflammatory cytokines, the NF-κB pathway, antioxidant response elements, unfolded protein response (UPR) pathway, growth factor signalling, cell cycle progression and apoptosis. This review summarises the published research on falcarinol-type PA compounds and their mechanisms of action regarding cancer chemoprevention and also identifies some gaps in our current understanding of the health benefits of these PAs.
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Deding U, Clausen BH, Al-Najami I, Baatrup G, Jensen BL, Kobaek-Larsen M. Effect of Oral Intake of Carrot Juice on Cyclooxygenases and Cytokines in Healthy Human Blood Stimulated by Lipopolysaccharide. Nutrients 2023; 15:nu15030632. [PMID: 36771338 PMCID: PMC9920447 DOI: 10.3390/nu15030632] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 01/28/2023] Open
Abstract
In vitro studies and animal studies have shown that chemical compounds contained in carrots, such as falcarinol and falcarindiol, can prevent inflammation. The present study was designed to test whether the oral intake of carrot juice containing falcarinol and falcarindiol affects the activity of cyclooxygenase (COX) enzymes and the secretion of inflammatory cytokines in human blood. Carrot juice (500 mL) was administered orally to healthy volunteers, and blood samples were drawn before and 1 h after juice intake at the time point when peak concentrations of falcarinol and falcariondiol have been shown in the blood. The blood samples were divided, and one sample was allowed to coagulate for 1 h at room temperature before analyzing the synthesis of thromboxane B2 (TBX2) by the COX1 enzyme using an enzyme linked immunosorbent assay (ELISA). The other blood samples were stimulated ex vivo with lipopolysaccharide and incubated at 37 °C for 24 h. The ELISA and cytokine multiplex analysis assessed the levels of COX-2-induced prostaglandin E2 (PGE2) and inflammatory markers interleukin (IL) 1α, IL1β, IL6, IL16, and tumor necrosis factor α (TNFα). Inflammatory cytokines such as IL1α and IL16 were significantly reduced in the LPS stimulated blood samples with higher concentrations of falcarinol and falcariondiol compared to the control samples taken before the intake of carrot juice. The levels of TBX2, PGE2, IL1β, IL6, and TNFα were not affected by the carrot juice intake blood samples not stimulated with LPS. In conclusion, carrot juice rich in the polyacetylens falcarinol and falcarindiol affects blood leukocytes, priming them to better cope with inflammatory conditions, evident by the reduced secretion of the proinflammatory cytokines IL1α and IL16.
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Affiliation(s)
- Ulrik Deding
- Department of Clinical Research, University of Southern Denmark, 5230 Odense, Denmark
- Department of Surgery, Odense University Hospital, 5000 Odense, Denmark
| | - Bettina Hjelm Clausen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark
| | - Issam Al-Najami
- Department of Surgery, Odense University Hospital, 5000 Odense, Denmark
| | - Gunnar Baatrup
- Department of Clinical Research, University of Southern Denmark, 5230 Odense, Denmark
- Department of Surgery, Odense University Hospital, 5000 Odense, Denmark
| | - Boye Lagerbon Jensen
- Cardiovascular and Renal Research, University of Southern Denmark, 5000 Odense, Denmark
| | - Morten Kobaek-Larsen
- Department of Clinical Research, University of Southern Denmark, 5230 Odense, Denmark
- Correspondence: ; Tel.: +45-2461-3161
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Watanabe Y, Nessa N, Toba H, Kobara M, Nakata T. Angelica acutiloba Exerts Antihypertensive Effect and Improves Insulin Resistance in Spontaneously Hypertensive Rats Fed with a High-Fat Diet. Pharmacology 2022; 107:188-196. [PMID: 35038707 DOI: 10.1159/000520982] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 11/16/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Angelica acutiloba is one of the crude drugs used in Chinese herbal medicine, and its intake is expected to improve metabolic syndrome-associated disorders. Here, we examined the effects of A. acutiloba extract (AAE) on hypertension and insulin resistance induced by the treatment of high-fat diet (HFD) to spontaneously hypertensive rats (SHRs). Then, we investigated the mechanisms associated with the effects of AAE. METHODS AAE was administered to HFD-fed SHRs. Systolic blood pressure (SBP), sympathetic nerve activity, hypothalamic angiotensin-converting enzyme (ACE) activity, blood glucose level, plasma insulin concentration, visceral fat mass, and gene expression of tumor necrosis factor-alpha (TNF-α) in the visceral fat were evaluated. RESULTS AAE reduced the increases in SBP and hypothalamic ACE activity observed in the HFD-fed SHRs, whereas the suppressive effect on sympathetic nerve activity was slight. Environmental stress-induced pressure and sympathetic overactivity were suppressed by the treatment of AAE. It also decreased the increase in the blood glucose level, plasma insulin concentration, homeostasis model assessment for the insulin resistance, and TNF-α gene expression in the visceral fat, but not the increase in the visceral fat mass. CONCLUSION AAE has an antihypertensive effect, suppresses stress-induced hypertension, and improves insulin resistance in HFD-fed SHRs. The suppression of brain ACE activity, sympathetic nerve activity, and inflammation are partly involved in the effects of AAE.
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Affiliation(s)
- Yusuke Watanabe
- Division of Pathological Sciences, Department of Clinical Pharmacology, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Naseratun Nessa
- Division of Pathological Sciences, Department of Clinical Pharmacology, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Hiroe Toba
- Division of Pathological Sciences, Department of Clinical Pharmacology, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Miyuki Kobara
- Division of Pathological Sciences, Department of Clinical Pharmacology, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Tetsuo Nakata
- Division of Pathological Sciences, Department of Clinical Pharmacology, Kyoto Pharmaceutical University, Kyoto, Japan
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Kour G, Choudhary R, Anjum S, Bhagat A, Bajaj B, Ahmed Z. Phytochemicals targeting JAK/STAT pathway in the treatment of rheumatoid arthritis: Is there a future? Biochem Pharmacol 2022. [DOI: 10.1016/j.bcp.2022.114929] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/05/2022] [Accepted: 01/13/2022] [Indexed: 12/13/2022]
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Meng L, Gao H, Chen B, Liu PP, Shan GS, Zhang F, Jia TZ. Simultaneous Determination of Five Chromones of Radix Saposhnikoviae Extract in Rat Plasma by UPLC-MS/MS: Application to a Comparative Pharmacokinetic Study in Normal and Febrile Rats. J Anal Methods Chem 2019; 2019:6454252. [PMID: 30937211 PMCID: PMC6413363 DOI: 10.1155/2019/6454252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 12/26/2018] [Accepted: 01/03/2019] [Indexed: 06/09/2023]
Abstract
A rapid and sensitive quantitative analytical method was established for the simultaneous determination of five chromones (prim-O-glucosylcimifugin, cimifugin, 4'-O-β-D-glucosyl-5-O-methylvisamminol, 5-O-methylvisammiol, and sec-o-glucosylhamaudol) in the plasma of RS-treated rats for the first time using ultra performance liquid chromatography- (UPLC-) tandem mass spectrometry. The Waters Acquity UPLC BEH C18 (50 mm × 2.1 mm, 1.7 μm) was used as the chromatographic column, 0.1% formic acid water and 0.1% formic acid acetonitrile comprised the mobile phases, and all samples were determined under positive ion mode. The results showed that all analytes had good linearity (r > 0.9902), between-day and within-day precisions less than 15%, accuracy between -5.50% and 5.53%, and extraction recovery between 88.26% and 97.65%. Both the matrix effect and stability met the requirements. This method was successfully applied for the comparative pharmacokinetics of five active components of RS in normal and febrile rats. The results showed that the pharmacokinetic behavior of RS extract significantly differed between the two types of rats.
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Affiliation(s)
- Li Meng
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian 116600, China
| | - Hui Gao
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian 116600, China
| | - Bin Chen
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian 116600, China
| | - Peng-peng Liu
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian 116600, China
| | - Guo-shun Shan
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian 116600, China
| | - Fan Zhang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian 116600, China
| | - Tian-zhu Jia
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian 116600, China
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Stefanson AL, Bakovic M. Falcarinol Is a Potent Inducer of Heme Oxygenase-1 and Was More Effective than Sulforaphane in Attenuating Intestinal Inflammation at Diet-Achievable Doses. Oxid Med Cell Longev 2018; 2018:3153527. [PMID: 30420908 PMCID: PMC6215554 DOI: 10.1155/2018/3153527] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 08/20/2018] [Accepted: 09/02/2018] [Indexed: 02/08/2023]
Abstract
Nuclear factor- (erythroid-derived 2) like 2 (Nrf2) is a transcription factor that regulates the expression of a battery of antioxidant, anti-inflammatory, and cytoprotective enzymes including heme oxygenase-1 (Hmox1, Ho-1) and NADPH:quinone oxidoreductase-1 (Nqo1). The isothiocyanate sulforaphane (SF) is widely understood to be the most effective natural activator of the Nrf2 pathway. Falcarinol (FA) is a lesser studied natural compound abundant in medicinal plants as well as dietary plants from the Apiaceae family such as carrot. We evaluated the protective effects of FA and SF (5 mg/kg twice per day in CB57BL/6 mice) pretreatment for one week against acute intestinal and systemic inflammation. The phytochemical pretreatment effectively reduced the magnitude of intestinal proinflammatory gene expression (IL-6, Tnfα/Tnfαr, Infγ, STAT3, and IL-10/IL-10r) with FA showing more potency than SF. FA was also more effective in upregulating Ho-1 at mRNA and protein levels in both the mouse liver and the intestine. FA but not SF attenuated plasma chemokine eotaxin and white blood cell growth factor GM-CSF, which are involved in the recruitment and stabilization of first-responder immune cells. Phytochemicals generally did not attenuate plasma proinflammatory cytokines. Plasma and intestinal lipid peroxidation was also not significantly changed 4 h after LPS injection; however, FA did reduce basal lipid peroxidation in the mesentery. Both phytochemical pretreatments protected against LPS-induced reduction in intestinal barrier integrity, but FA additionally reduced inflammatory cell infiltration even below negative control.
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Affiliation(s)
- Amanda L. Stefanson
- Department of Human Health and Nutritional Sciences, 50 Stone Rd E, University of Guelph, Guelph, ON, Canada N1G 2W1
| | - Marica Bakovic
- Department of Human Health and Nutritional Sciences, 50 Stone Rd E, University of Guelph, Guelph, ON, Canada N1G 2W1
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Hinds L, Kenny O, Hossain MB, Walsh D, Sheehy E, Evans P, Gaffney M, Rai DK. Evaluating the Antibacterial Properties of Polyacetylene and Glucosinolate Compounds with Further Identification of Their Presence within Various Carrot (Daucus carota) and Broccoli (Brassica oleracea) Cultivars Using High-Performance Liquid Chromatography with a Diode Array Detector and Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry Analyses. J Agric Food Chem 2017; 65:7186-7191. [PMID: 28805380 DOI: 10.1021/acs.jafc.7b02029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Ongoing consumer concerns over using synthetic additives in foods has strongly influenced efforts worldwide to source suitable natural alternatives. In this study, the antibacterial efficacy of polyacetylene and glucosinolate compounds was evaluated against both Gram positive and Gram negative bacterial strains. Falcarinol [minimum inhibitory concentration (MIC) = 18.8-37.6 μg/mL] demonstrated the best overall antibacterial activity, while sinigrin (MIC = 46.9-62.5 μg/mL) was the most active glucosinolate compound. High-performance liquid chromatography with a diode array detector analysis showed falcarinol [85.13-244.85 μg/g of dry weight (DW)] to be the most abundant polyacetylene within six of the eight carrot (Daucus carota) cultivars investigated. Meanwhile, sinigrin (100.2-244.3 μg/g of DW) was the most abundant glucosinolate present within the majority of broccoli (Brassica oleracea) cultivars investigated using ultra performance liquid chromatography-tandem mass spectrometry analysis. The high abundance of both falcarinol and sinigrin within these respective species suggests that they could serve as potential sources of natural antibacterial agents for use as such in food products.
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Affiliation(s)
| | - O Kenny
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast , Belfast BT9 5BN, United Kingdom
| | | | | | - E Sheehy
- Centre for Synthesis and Chemical Biology, School of Chemistry, University College Dublin , Dublin D04 V1W8, Ireland
| | - P Evans
- Centre for Synthesis and Chemical Biology, School of Chemistry, University College Dublin , Dublin D04 V1W8, Ireland
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Affiliation(s)
- Bernd Schmidt
- Universitaet Potsdam, Institut fuer Chemie (Organische
Synthesechemie), Karl-Liebknecht-Strasse
24-25, D-14476 Potsdam-Golm, Germany
| | - Stephan Audörsch
- Universitaet Potsdam, Institut fuer Chemie (Organische
Synthesechemie), Karl-Liebknecht-Strasse
24-25, D-14476 Potsdam-Golm, Germany
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Negri R. Polyacetylenes from terrestrial plants and fungi: Recent phytochemical and biological advances. Fitoterapia 2015; 106:92-109. [DOI: 10.1016/j.fitote.2015.08.011] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 08/21/2015] [Accepted: 08/22/2015] [Indexed: 01/07/2023]
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Chen Y, Peng S, Luo Q, Zhang J, Guo Q, Zhang Y, Chai X. Chemical and Pharmacological Progress on Polyacetylenes Isolated from the Family Apiaceae. Chem Biodivers 2015; 12:474-502. [DOI: 10.1002/cbdv.201300396] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Indexed: 01/23/2023]
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Yoshida J, Seino H, Ito Y, Nakano T, Satoh T, Ogane Y, Suwa S, Koshino H, Kimura KI. Inhibition of glycogen synthase kinase-3β by falcarindiol isolated from Japanese Parsley (Oenanthe javanica). J Agric Food Chem 2013; 61:7515-7521. [PMID: 23895038 DOI: 10.1021/jf401042m] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A new biological activity of falcarindiol isolated from Japanese parsley (Oenanthe javanica) using the mutant yeast YNS17 strain (zds1Δ erg3Δ pdr1Δ pdr3Δ) was discovered as an inhibitor of glycogen synthase kinase-3β (GSK-3β). Falcarindiol inhibited GSK-3β in an ATP noncompetitive manner with a Ki value of 86.9 μM using a human enzyme and luminescent kinase assay platform. Falcarindiol also both suppressed gene expression of glucose-6-phosphatase (G6Pase) in rat hepatoma H4IIE cells and protected mouse neuroblastoma HT22 cells from glutamate-induced oxidative cell death at 10 μM. During an oral glucose tolerance test (OGTT), the blood glucose level was significantly decreased in the rats treated with oral administration of O. javanica extract containing falcarindiol (15 mg/kg). These findings indicate that Japanese parsley could be a useful food ingredient against type-2 diabetes and Alzheimer's disease.
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Affiliation(s)
- Jun Yoshida
- Chemical Biology Laboratory, The United Graduate School of Agricultural Sciences, §Graduate School of Agriculture, and ∥Faculty of Agriculture, Iwate University , Morioka, Iwate 020-8550, Japan
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Wyrembek P, Negri R, Kaczor P, Czyżewska M, Appendino G, Mozrzymas JW. Falcarindiol allosterically modulates GABAergic currents in cultured rat hippocampal neurons. J Nat Prod 2012; 75:610-616. [PMID: 22432736 DOI: 10.1021/np2008522] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Falcarindiol (1), a C-17 polyacetylenic diol, shows a pleiotropic profile of bioactivity, but the mechanism(s) underlying its actions are largely unknown. Large amounts of 1 co-occur in water hemlock (Oenanthe crocata) along with the convulsant polyacetylenic toxin oenanthotoxin (2), a potent GABA(A) receptor (GABA(A)R) inhibitor. Since these compounds are structurally and biogenetically related, it was considered of interest to evaluate whether 1 could affect GABAergic activity, and for this purpose a model of hippocampal cultured neurons was used. Compound 1 significantly increased the amplitude of miniature inhibitory postsynaptic currents, accelerated their onset, and prolonged the decay kinetics. This compound enhanced also the amplitude of currents elicited by 3 μM GABA and accelerated their fading, reducing, however, currents evoked by a saturating (10 mM) GABA concentration. Moreover, kinetic analysis of responses to 10 mM GABA revealed that 1 upregulated the rate and extent of desensitization and slowed the current onset and deactivation. Taken together, these data show that 1 exerts a potent modulatory action on GABA(A)Rs, possibly by modulating agonist binding and desensitization, overall potentially decreasing the toxicity of co-occurring GABA-inhibiting convulsant toxins.
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Affiliation(s)
- Paulina Wyrembek
- Laboratory of Neuroscience, Department of Biophysics, Wrocław Medical University, ul. Chałubińskiego 3, 50-358 Wrocław, Poland
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Ohnuma T, Nakayama S, Anan E, Nishiyama T, Ogura K, Hiratsuka A. Activation of the Nrf2/ARE pathway via S-alkylation of cysteine 151 in the chemopreventive agent-sensor Keap1 protein by falcarindiol, a conjugated diacetylene compound. Toxicol Appl Pharmacol 2010; 244:27-36. [DOI: 10.1016/j.taap.2009.12.012] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2009] [Revised: 11/12/2009] [Accepted: 12/10/2009] [Indexed: 01/08/2023]
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Mitsui S, Torii K, Fukui H, Tsujimura K, Maeda A, Nose M, Nagatsu A, Mizukami H, Morita A. The herbal medicine compound falcarindiol from Notopterygii Rhizoma suppresses dendritic cell maturation. J Pharmacol Exp Ther 2010; 333:954-60. [PMID: 20215408 DOI: 10.1124/jpet.109.162305] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Dendritic cells (DCs) are important for regulating the immune response. We report an herbal medicine compound called falcarindiol that affects DC function. Ethanol extracts of 99 crude drugs that are the main components of 210 traditional Japanese medicines (Kampo medicine) approved by the Ministry of Health, Labor and Welfare in Japan were prepared and screened using the murine epidermal-derived Langerhans cell line XS106. Notopterygii Rhizoma strongly suppressed major histocompatibility complex (MHC) class II expression in XS106 cells. Activity-guided fractionation led to the isolation and identification of falcarindiol as a principal active compound in Notopterygii Rhizoma. Falcarindiol (1-5 microM) dose-dependently suppressed MHC II expression in XS106 cells. Fresh-isolated bone marrow-derived DCs were examined for the production of MHC II, CD80, CD86, interleukin (IL)-12p70, and IL-10. Treatment of bone marrow-derived DCs with 5 muM falcarindiol significantly inhibited lipopolysaccharide-induced phenotype activation and cytokine secretion and inhibited MHC II expression by CD40 ligation, but not phorbol 12-myristate 13-acetate + ionomycin or IL-12. Falcarindiol inhibited DC maturation by blocking the canonical pathway of nuclear factor-kappaB and phosphorylated p38. Topical application of 0.002 and 0.01% falcarindiol before sensitization dose-dependently suppressed delayed-type hypersensitivity to ovalbumin (p < 0.01). Falcarindiol induces immunosuppressive effects in vitro and in vivo and might be a novel therapy for autoimmune or allergic diseases.
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Affiliation(s)
- Seika Mitsui
- Department of Geriatric and Environmental Dermatology, Nagoya City University Graduate School of Medical Sciences, Mizuho-ku, Nagoya, Japan
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Lin ST, Wang Y, Xue Y, Feng DC, Xu Y, Xu LY. Tetrandrine suppresses LPS-induced astrocyte activation via modulating IKKs-IκBα-NF-κB signaling pathway. Mol Cell Biochem 2008; 315:41-9. [DOI: 10.1007/s11010-008-9787-4] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2008] [Accepted: 05/05/2008] [Indexed: 11/24/2022]
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Randriamampionona D, Diallo B, Rakotoniriana F, Rabemanantsoa C, Cheuk K, Corbisier AM, Mahillon J, Ratsimamanga S, El Jaziri M. Comparative analysis of active constituents in Centella asiatica samples from Madagascar: application for ex situ conservation and clonal propagation. Fitoterapia 2007; 78:482-9. [PMID: 17560738 DOI: 10.1016/j.fitote.2007.03.016] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2006] [Accepted: 03/19/2007] [Indexed: 01/22/2023]
Abstract
A comparative quantitative analysis of the active triterpenoids in Centella asiatica samples collected in different locations in Madagascar was carried out to evaluate the natural variability in triterpenoid content and to select elite samples for further ex situ germplasm conservation and clonal propagation. The highest asiaticoside content (6.42%) was measured in samples collected in Mangoro region. In vitro propagation of C. asiatica was successfully achieved in hormone-free medium. Although lower asiaticoside content was detected in 8-week-old vitro plants, the Mangoro sample still showed the highest content in this triterpenoid constituent (1.78%). Acetoxycentellynol, a C(15)-polyacetylene, was found to be accumulated up to 18 times more in in vitro plants as compared to plant material collected in situ.
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Affiliation(s)
- Denis Randriamampionona
- Laboratoire de Biotechnologie Végétale, Université Libre de Bruxelles, Rue Adrienne Bolland 8, B-6041 Gosselies, Belgium.
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Abstract
Arginine, the only known precursor of nitric oxide, enters the brain parenchyma from the blood through the endothelial cells or from the cerebral spinal fluid through the ependymal cells. Astrocytes, whose processes abut the endothelium and ependymum, take up arginine through cationic amino acid transporters and release arginine through this transport system to the synapses that astrocytes shield. Some of these synapses are excitatory, and liberate glutamate into the synaptic cleft. Glutamate induces arginine release from astrocytes, making it available to the neuron. Neurons can take up arginine to be used in nitric oxide-mediated processes, such as neurotransmission. Thus, neural and nonneural cells act in concert to affect neuron physiology in an elegantly integrated system. This review focuses on the components of the interaction between astrocytes and neurons in nitric oxide biology.
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Affiliation(s)
- Joann M Gensert
- Burke/Cornell Medical Research Institute, White Plains, New York 10605, USA.
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