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Okagu IU, Ezeorba TPC, Aguchem RN, Ohanenye IC, Aham EC, Okafor SN, Bollati C, Lammi C. A Review on the Molecular Mechanisms of Action of Natural Products in Preventing Bone Diseases. Int J Mol Sci 2022; 23:ijms23158468. [PMID: 35955603 PMCID: PMC9368769 DOI: 10.3390/ijms23158468] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 07/23/2022] [Accepted: 07/25/2022] [Indexed: 12/10/2022] Open
Abstract
The drugs used for treating bone diseases (BDs), at present, elicit hazardous side effects that include certain types of cancers and strokes, hence the ongoing quest for the discovery of alternatives with little or no side effects. Natural products (NPs), mainly of plant origin, have shown compelling promise in the treatments of BDs, with little or no side effects. However, the paucity in knowledge of the mechanisms behind their activities on bone remodeling has remained a hindrance to NPs’ adoption. This review discusses the pathological development of some BDs, the NP-targeted components, and the actions exerted on bone remodeling signaling pathways (e.g., Receptor Activator of Nuclear Factor κ B-ligand (RANKL)/monocyte/macrophage colony-stimulating factor (M-CSF)/osteoprotegerin (OPG), mitogen-activated protein kinase (MAPK)s/c-Jun N-terminal kinase (JNK)/nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), Kelch-like ECH-associated protein 1 (Keap-1)/nuclear factor erythroid 2–related factor 2 (Nrf2)/Heme Oxygenase-1 (HO-1), Bone Morphogenetic Protein 2 (BMP2)-Wnt/β-catenin, PhosphatidylInositol 3-Kinase (PI3K)/protein kinase B (Akt)/Glycogen Synthase Kinase 3 Beta (GSK3β), and other signaling pathways). Although majority of the studies on the osteoprotective properties of NPs against BDs were conducted ex vivo and mostly on animals, the use of NPs for treating human BDs and the prospects for future development remain promising.
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Affiliation(s)
- Innocent U. Okagu
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka 410001, Nigeria; (I.U.O.); (T.P.C.E.); (R.N.A.); (E.C.A.)
| | - Timothy P. C. Ezeorba
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka 410001, Nigeria; (I.U.O.); (T.P.C.E.); (R.N.A.); (E.C.A.)
| | - Rita N. Aguchem
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka 410001, Nigeria; (I.U.O.); (T.P.C.E.); (R.N.A.); (E.C.A.)
| | - Ikenna C. Ohanenye
- School of Nutrition Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, ON K1H 8M5, Canada;
| | - Emmanuel C. Aham
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka 410001, Nigeria; (I.U.O.); (T.P.C.E.); (R.N.A.); (E.C.A.)
- Natural Science Unit, School of General Studies, University of Nigeria, Nsukka 410001, Nigeria
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Sunday N. Okafor
- Department of Pharmaceutical and Medicinal Chemistry, University of Nigeria, Nsukka 410001, Nigeria;
| | - Carlotta Bollati
- Department of Pharmaceutical Sciences, University of Milan, via Mangiagalli 25, 20133 Milano, Italy;
| | - Carmen Lammi
- Department of Pharmaceutical Sciences, University of Milan, via Mangiagalli 25, 20133 Milano, Italy;
- Correspondence: ; Tel.: +39-02-5031-9372
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Theaflavins inhibit glucose transport across Caco-2 cells through the downregulation of the Ca2+/AMP-activated protein kinase-mediated glucose transporter SGLT1. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104273] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Tanaka M. Study on the Physiological Benefits of Food Compounds on Vascular Health and Their Underlying Mechanisms. J JPN SOC FOOD SCI 2017. [DOI: 10.3136/nskkk.64.285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Mitsuru Tanaka
- Faculty of Agriculture, Graduate School of Kyushu University
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Kumrungsee T, Akiyama S, Guo J, Tanaka M, Matsui T. Identification of peptides in wheat germ hydrolysate that demonstrate calmodulin-dependent protein kinase II inhibitory activity. Food Chem 2016; 213:329-335. [DOI: 10.1016/j.foodchem.2016.06.059] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 05/18/2016] [Accepted: 06/20/2016] [Indexed: 11/25/2022]
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Adenine attenuates the Ca(2+) contraction-signaling pathway via adenine receptor-mediated signaling in rat vascular smooth muscle cells. Naunyn Schmiedebergs Arch Pharmacol 2016; 389:999-1007. [PMID: 27318925 DOI: 10.1007/s00210-016-1264-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 06/08/2016] [Indexed: 10/21/2022]
Abstract
Our previous study demonstrated that adenine (6-amino-6H-purine) relaxed contracted rat aorta rings in an endothelial-independent manner. Although adenine receptors (AdeRs) are expressed in diverse tissues, aortic AdeR expression has not been ascertained. Thus, the aims of this study were to clarify the expression of AdeR in rat vascular smooth muscle cells (VSMCs) and to investigate the adenine-induced vasorelaxation mechanism(s). VSMCs were isolated from 8-week-old male Wistar-Kyoto rats and used in this study. Phosphorylation of myosin light chain (p-MLC) was measured by western blot. AdeR mRNA was detected by RT-PCR. Intracellular Ca(2+) concentration ([Ca(2+)]i) was measured by using Fura-2/AM. Vasorelaxant adenine (10-100 μM) significantly reduced p-MLC by angiotensin II (Ang II, 10 μM) in VSMCs (P < 0.05). We confirmed the expression of aortic AdeR mRNA and the activation of PKA in VSMCs through stimulation of AdeR by adenine by ELISA. Intracellular Ca(2+) concentration ([Ca(2+)]i) measurement demonstrated that adenine inhibits Ang II- and m-3M3FBS (PLC agonist)-induced [Ca(2+)]i elevation. In AdeR-knockdown VSMCs, PKA activation and p-MLC reduction by adenine were completely abolished. These results firstly demonstrated that vasorelaxant adenine can suppress Ca(2+) contraction signaling pathways via aortic AdeR/PKA activation in VSMCs.
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Evaluating the Reduced Hydrophobic Taste Sensor Response of Dipeptides by Theasinensin A by Using NMR and Quantum Mechanical Analyses. PLoS One 2016; 11:e0157315. [PMID: 27309380 PMCID: PMC4911063 DOI: 10.1371/journal.pone.0157315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 05/29/2016] [Indexed: 11/22/2022] Open
Abstract
The current study demonstrated that theasinensin A (TSA) had a potential to form the complex with hydrophobic Trp-containing dipeptides, and to reduce their membrane potential by artificial-lipid membrane taste sensor. At a 1:3 molar ratio of the 6 Trp-containing dipeptides together with TSA, we observed a significant chemical shift of the protons of the dipeptides (Δδ) to a high magnetic field, when analyzed using 1H-nuclear-magnetic resonance (NMR) spectroscopy. The Δδ values were correlated with the hydrophobicity (log P) of the dipeptides and significant correlations were obtained (P = 0.022, R2 = 0.77); e.g., Trp-Leu with the highest log P value of 1.623 among the tested dipeptides showed the highest Δδ value of 0.105 ppm for the H7 proton of Trp-Leu, while less chemical shifts were observed in theasinensin B and epigallocatechin-3-O-gallate. Diffusion-ordered NMR spectroscopy revealed that the diffusion coefficient of 3 mM of Trp-Leu (7.6 × 10−11 m2/s) at a pulse field gradient in the range 0.05–0.3 T/m decreased in the presence of 3 mM TSA (6.6 × 10−11 m2/s), suggesting that Trp-Leu forms a complex with TSA. Quantum mechanical calculations and rotating frame nuclear Overhauser effect-NMR spectroscopy provided configuration information on the geometry of the complex that Trp-Leu formed with TSA (1:1 complex) with a ΔG energy of –8.7 kJ/mol. A sensor analysis using artificial-lipid membranes demonstrated that the changes in membrane potential of 1 mM Trp-Leu (21.8 ± 1.3 mV) and Leu-Trp (5.3 ± 0.9 mV) were significantly (P < 0.001) reduced by 1 mM TSA (Trp-Leu, 13.1 ± 2.4 mV; Leu-Trp, 3.5 ± 0.5 mV; TSA alone, 0.2 ± 0.01 mV), indicating the effective suppression of hydrophobicity of dipeptides by TSA-formed complex.
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Kumrungsee T, Akiyama S, Saiki T, Omae M, Hamasawa K, Matsui T. Vasorelaxant Effect of 5'-Methylthioadenosine Obtained from Candida utilis Yeast Extract through the Suppression of Intracellular Ca(2+) Concentration in Isolated Rat Aorta. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:3362-3370. [PMID: 27066696 DOI: 10.1021/acs.jafc.6b00679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Our study is the first to demonstrate the vasorelaxant effect of Candida utilis yeast extract on rat aorta (EC50 of 7.2 ± 3.2 mg/mL). Among five identified compounds, 5'-methylthioadenosine (MTA) exhibited comparable vasorelaxant effect (EC50 of 190 ± 40 μM) with adenosine, a known vasodilator, on 1 μM phenylephrine (PE)-contracted Sprague-Dawley rat aortic rings. MTA induced vasorelaxation in an endothelium-independent manner and independent of the adenosine receptors. MTA reduced a CaCl2-induced vasocontraction stimulated by 1 μM PE, whereas the effect was abolished in a 60 mM KCl-induced vasocontraction. This indicates that MTA was not involved in the suppression of extracellular Ca(2+) influx. MTA significantly (P < 0.01) attenuated the PE-induced activation of calmodulin-dependent kinase II (CaMK II) in aortic rings and inhibited the phosphorylation of L-type Ca(2+) channel (VDCC). In conclusion, the underlying mechanism(s) of MTA-induced vasorelaxation involves the inhibition of Ca(2+)/CaMK II/VDCC phosphorylation pathway, resulting in the suppression of intracellular Ca(2+) concentration in aortic rings.
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Affiliation(s)
- Thanutchaporn Kumrungsee
- Faculty of Agriculture, Graduate School of Kyushu University , 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Sayaka Akiyama
- Faculty of Agriculture, Graduate School of Kyushu University , 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Tomomi Saiki
- KOHJIN Life Sciences Company Ltd. , Saiki-Factory, 1-6 Higashihama, Saiki-shi, Oita 876-8580, Japan
| | - Masato Omae
- KOHJIN Life Sciences Company Ltd. , Saiki-Factory, 1-6 Higashihama, Saiki-shi, Oita 876-8580, Japan
| | - Kazuhiro Hamasawa
- KOHJIN Life Sciences Company Ltd. , Saiki-Factory, 1-6 Higashihama, Saiki-shi, Oita 876-8580, Japan
| | - Toshiro Matsui
- Faculty of Agriculture, Graduate School of Kyushu University , 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
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Kobayashi Y, Kovacs-Nolan J, Matsui T, Mine Y. The Anti-atherosclerotic Dipeptide, Trp-His, Reduces Intestinal Inflammation through the Blockade of L-Type Ca2+ Channels. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:6041-6050. [PMID: 26079480 DOI: 10.1021/acs.jafc.5b01682] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Trp-His, the anti-atherosclerotic dipeptide, exerted an antiproliferative effect on vascular smooth muscle cells by L-type Ca(2+) channel blocker-like effect. The beneficial potential by the blockade of Ca(2+) channels on chronic intestinal inflammation, including inflammatory bowel disease (IBD), is unclear. Trp-His (100 or 250 mg/kg body weight/day) was administered for 14 days to BALB/c mice, and 5% dextran sodium sulfate (DSS) was administered to induce colitis in the last 7 days. Trp-His reduced DSS-induced typical colitis symptoms and cytokine expression in the colon. Trp-His inhibited interleukin (IL)-8 secretion in tumor necrosis factor (TNF)-α-stimulated HT-29 cells. The inhibitory effect of Trp-His, as well as that of Ca(2+) channel blockers, was impaired by the presence of Ca(2+) channel agonist Bay K 8644. The TNF-α-induced activation of mitogen-activated protein kinases (MAPKs) and IκBα were decreased by Trp-His. These results indicated that the anti-inflammatory effect of Trp-His may be involved in the blockade of L-type Ca(2+) channels.
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Affiliation(s)
- Yutaro Kobayashi
- †Department of Food Science, University of Guelph, Guelph, Ontario N1G 2W1, Canada
- §Division of Bioresources and Bioenvironmental Sciences, Faculty of Agriculture, Graduate School, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | | | - Toshiro Matsui
- §Division of Bioresources and Bioenvironmental Sciences, Faculty of Agriculture, Graduate School, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Yoshinori Mine
- †Department of Food Science, University of Guelph, Guelph, Ontario N1G 2W1, Canada
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Tanaka M, Hong SM, Akiyama S, Hu QQ, Matsui T. Visualized absorption of anti-atherosclerotic dipeptide, Trp-His, in Sprague-Dawley rats by LC-MS and MALDI-MS imaging analyses. Mol Nutr Food Res 2015; 59:1541-9. [DOI: 10.1002/mnfr.201500075] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 03/19/2015] [Accepted: 03/20/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Mitsuru Tanaka
- Faculty of Agriculture; Graduate School of Kyushu University; Fukuoka Japan
| | - Seong-Min Hong
- Faculty of Agriculture; Graduate School of Kyushu University; Fukuoka Japan
| | - Sayaka Akiyama
- Faculty of Agriculture; Graduate School of Kyushu University; Fukuoka Japan
| | - Qing-Qiang Hu
- Faculty of Agriculture; Graduate School of Kyushu University; Fukuoka Japan
| | - Toshiro Matsui
- Faculty of Agriculture; Graduate School of Kyushu University; Fukuoka Japan
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Cao R, Kobayashi Y, Nonaka A, Miyata Y, Tanaka K, Tanaka T, Matsui T. NMR Spectroscopic and Quantum Mechanical Analyses of Enhanced Solubilization of Hesperidin by Theasinensin A. Pharm Res 2015; 32:2301-9. [DOI: 10.1007/s11095-015-1621-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 01/05/2015] [Indexed: 01/04/2023]
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GUO J, SAIKI T, THANUTCHAPORN K, LIU W, SHIMURA A, MATSUI T. Elution Profile of Di-peptides on a Sulfonated Ethylstyrene–Divinylbenzene Copolymer Resin Column by High-performance Liquid Chromatography. ANAL SCI 2015; 31:45-50. [DOI: 10.2116/analsci.31.45] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Jian GUO
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School of Kyushu University
| | - Tomomi SAIKI
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School of Kyushu University
| | - Kumrungsee THANUTCHAPORN
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School of Kyushu University
| | - Wanying LIU
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School of Kyushu University
| | - Akihiro SHIMURA
- Separation Materials Laboratories, R&D Center, Kurosaki Plant, Mitsubishi Chemical Corp
| | - Toshiro MATSUI
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School of Kyushu University
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