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Passos CLA, Ferreira C, de Carvalho AGA, Silva JL, Garrett R, Fialho E. Oxyresveratrol in Breast Cancer Cells: Synergistic Effect with Chemotherapeutics Doxorubicin or Melphalan on Proliferation, Cell Cycle Arrest, and Cell Death. Pharmaceutics 2024; 16:873. [PMID: 39065570 PMCID: PMC11279446 DOI: 10.3390/pharmaceutics16070873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/24/2024] [Accepted: 06/27/2024] [Indexed: 07/28/2024] Open
Abstract
Breast cancer is the second most common type of cancer in the world. Polyphenols can act at all stages of carcinogenesis and oxyresveratrol (OXY) promising anticancer properties, mainly associated with chemotherapy drugs. The aim of this study was to investigate the effect of OXY with doxorubicin (DOX) or melphalan (MEL), either isolated or associated, in MCF-7 and MDA-MB-231 breast cancer cells. Our results showed that OXY, DOX, and MEL presented cytotoxicity, in addition to altering cell morphology. The synergistic association of OXY + DOX and OXY + MEL reduced the cell viability in a dose-dependent manner. The OXY, DOX, or MEL and associations were able to alter the ROS production, ∆Ψm, and cell cycle; DOX and OXY + DOX led the cells to necrosis. Furthermore, OXY and OXY + MEL were able to lead the cells to apoptosis and upregulate caspases-3, -7, -8, and -9 in both cells. LC-HRMS showed that 7-deoxidoxorubicinone and doxorubicinol, responsible for the cardiotoxic effect, were not identified in cells treated with the OXY + DOX association. In summary, our results demonstrate for the first time the synergistic effect of OXY with chemotherapeutic agents in breast cancer cells, offering a new strategy for future animal studies.
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Affiliation(s)
- Carlos Luan Alves Passos
- Nutrition Institute Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil; (C.L.A.P.); (C.F.)
| | - Christian Ferreira
- Nutrition Institute Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil; (C.L.A.P.); (C.F.)
| | | | - Jerson Lima Silva
- Medical Biochemistry Institute Leopoldo De Meis, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil;
| | - Rafael Garrett
- Chemistry Institute, Federal University of Rio de Janeiro, Rio de Janeiro 21941-909, RJ, Brazil; (A.G.A.d.C.); (R.G.)
| | - Eliane Fialho
- Nutrition Institute Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil; (C.L.A.P.); (C.F.)
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Lee YJ, Ahn JC, Oh CH. Oxyresveratrol attenuates bone resorption by inhibiting the mitogen-activated protein kinase pathway in ovariectomized rats. Nutr Metab (Lond) 2024; 21:7. [PMID: 38243227 PMCID: PMC10799353 DOI: 10.1186/s12986-024-00781-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 01/15/2024] [Indexed: 01/21/2024] Open
Abstract
BACKGROUND Bone is continuously produced by osteoblasts and resorbed by osteoclasts to maintain homeostasis. Impaired bone resorption by osteoclasts causes bone diseases such as osteoporosis and arthritis. Most pharmacological treatment of osteoporosis focuses on inhibiting osteoclast differentiation, often to restore osteoclast/osteoclast balance. However, recent osteoporosis treatments have various side effects. According to a recent study, resveratrol, known as a stilbenoid family, is known to increase bone density, and the osteoclast inhibitory effect was confirmed using oxyresveratrol, a stilbenoid family. Here, we investigated the effect of oxyresveratrol on osteoclast differentiation and an ovariectomized mouse model. METHODS Mouse leukemia monocyte/macrophage cell line RAW 264.7 was treated with oxyresveratrol, and cell cytotoxicity was confirmed by measuring MTT assay. Tartrate-resistant acid phosphatase (TRAP), an enzyme marker for osteoclasts, was confirmed by staining. In addition, osteoclast differentiation markers and MAPK-related markers were confirmed at the mRNA level and protein expression. The effect of oxyresveratrol was confirmed using ovariectomized mice. Deoxypyridinoline (DPD) was measured using mouse urine and TRAP activity was observed using serum. Bone mineral density was also measured using Micro-CT. RESULTS The polyphenol oxyresveratrol inhibited receptor activator of nuclear factor kappa-Β ligand (RANKL)-induced osteoclast differentiation of RAW 264.7 cells. Furthermore, oxyresveratrol inhibited TRAP activity and actin-ring formation. Moreover, oxyresveratrol suppressed the phosphorylation of the RANKL-induced mitogen-activated protein kinases (MAPKs) p38, JNK, and ERK and significantly reduced the expression of bone differentiation markers (NFATc1, cathepsin K, and TRAP). CONCLUSION Oxyresveratrol inhibits osteoclast differentiation via MAPK and increases bone density in ovariectomized rats, suggesting it has therapeutic potential for bone diseases such as osteoporosis. We confirmed the osteoporosis prevention effect of OR in Raw 264.7 cells, and future studies should confirm the effect of OR using rat bone marrow-derived cells.
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Affiliation(s)
- Yea-Jin Lee
- Department of Medicine, Dankook University, Cheonan-si, 31116, Republic of Korea
- Medical Laser Research Center, Graduate School of Medicine, Dankook University, Cheonan-si, 31116, Republic of Korea
- Department of Photobiology, College of Medicine, Dankook University, Cheonan-si, 31116, Republic of Korea
| | - Jin-Chul Ahn
- Department of Medicine, Dankook University, Cheonan-si, 31116, Republic of Korea.
- Medical Laser Research Center, Graduate School of Medicine, Dankook University, Cheonan-si, 31116, Republic of Korea.
- Department of Photobiology, College of Medicine, Dankook University, Cheonan-si, 31116, Republic of Korea.
| | - Chung-Hun Oh
- Medical Laser Research Center, Graduate School of Medicine, Dankook University, Cheonan-si, 31116, Republic of Korea.
- Department of Oral Physiology, College of Dentistry, Dankook University, Cheonan-si, 31116, Republic of Korea.
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Aidhen IS, Srikanth S, Lal H. The Emerging Promise with O/C‐Glycosides of Important Dietary Phenolic Compounds. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Indrapal Singh Aidhen
- Indian Institute of Technology Madras Department of Chemistry Adyar 600036 Chennai INDIA
| | | | - Heera Lal
- Indian Institute of Technology Madras Chemistry 600036 Chennai INDIA
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Likhitwitayawuid K. Oxyresveratrol: Sources, Productions, Biological Activities, Pharmacokinetics, and Delivery Systems. Molecules 2021; 26:4212. [PMID: 34299485 PMCID: PMC8307110 DOI: 10.3390/molecules26144212] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/05/2021] [Accepted: 07/08/2021] [Indexed: 12/18/2022] Open
Abstract
Oxyresveratrol has recently attracted much research attention due to its simple chemical structure and diverse therapeutic potentials. Previous reviews describe the chemistry and biological activities of this phytoalexin, but additional coverage and greater accessibility are still needed. The current review provides a more comprehensive summary, covering research from 1955 to the present year. Oxyresveratrol occurs in both gymnosperms and angiosperms. However, it has never been reported in plants in the subclass Sympetalae, and this point might be of both chemotaxonomic and biosynthetic importance. Oxyresveratrol can be easily obtained from plant materials by conventional methods, and several systems for both qualitative and quantitative analysis of oxyresveratrol contents in plant materials and plant products are available. Oxyresveratrol possesses diverse biological and pharmacological activities such as the inhibition of tyrosinase and melanogenesis, antioxidant and anti-inflammatory activities, and protective effects against neurological disorders and digestive ailments. However, the unfavorable pharmacokinetic properties of oxyresveratrol, including low water solubility and poor oral availability and stability, have posed challenges to its development as a useful therapeutic agent. Recently, several delivery systems have emerged, with promising outcomes that may improve chances for the clinical study of oxyresveratrol.
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Affiliation(s)
- Kittisak Likhitwitayawuid
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
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Antioxidant Compound, Oxyresveratrol, Inhibits APP Production through the AMPK/ULK1/mTOR-Mediated Autophagy Pathway in Mouse Cortical Astrocytes. Antioxidants (Basel) 2021; 10:antiox10030408. [PMID: 33800526 PMCID: PMC7998742 DOI: 10.3390/antiox10030408] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/05/2021] [Accepted: 03/05/2021] [Indexed: 12/13/2022] Open
Abstract
Oxyresveratrol (OxyR), a well-known polyphenolic phytoalexin, possesses a wide range of pharmacological and biological properties, comprising antioxidant, anti-inflammatory, free radical scavenging, anti-cancer, and neuroprotective activities. Autophagy is a cellular self-degradation system that removes aggregated or misfolded intracellular components via the autophagosome-lysosomal pathway. Astrocyte accumulation is one of the earliest neuropathological changes in Alzheimer’s disease (AD), and amyloid precursor protein (APP) is the hallmark of AD. OxyR could affect APP modulation via the autophagy pathway. Here, we have reported that OxyR promotes autophagy signaling and attenuates APP production in primary cortical astrocytes based on immunofluorescence and immunoblotting assay results. Co-treatment with the late-stage autophagy inhibitor chloroquine (CQ) and OxyR caused significantly higher microtubule-associated protein light chain 3 (LC3)-II protein levels and LC3 puncta counts, demonstrating that OxyR stimulated autophagic flux. We also found that OxyR significantly reduced the levels of the autophagy substrate p62/SQSTM1, and p62 levels were significantly augmented by co-treatment with OxyR and CQ, because of the impaired deficiency of p62 in autolysosome. Likewise, pretreatment with the autophagy inhibitor, 3-methyladenine (3-MA), resulted in significantly fewer OxyR-induced LC3 puncta and lower LC3-II expression, suggesting that OxyR-mediated autophagy was dependent on the class III PI3-kinase pathway. In contrast, OxyR caused significantly lower LC3-II protein expression when pretreated with compound C, an AMP-activated protein kinase (AMPK) inhibitor, indicating that AMPK signaling regulated the OxyR-induced autophagic pathway. Additionally, co-treatment with OxyR with rapamycin intended to inhibit the mammalian target of rapamycin (mTOR) caused significantly lower levels of phospho-S6 ribosomal protein (pS6) and higher LC3-II expression, implying that OxyR-mediated autophagy was dependent on the mTOR pathway. Conversely, OxyR treatment significantly upregulated unc-51-like autophagy activating kinase 1 (ULK1) expression, and ULK1 small interfering RNAs (siRNA) caused significantly lower OxyR-induced LC3 puncta counts and LC3-II expression, indicating that ULK1 was essential for initiating OxyR-induced autophagy. However, we found that OxyR treatment astrocytes significantly increased the expression of lysosome-associated membrane protein 1 (LAMP1). Finally, we established a stress-induced APP production model using corticosterone (CORT) in cortical astrocytes, which produced significantly more APP than the equivalent using dexamethasone (DEX). In our experiment we found that CORT-induced APP production was significantly attenuated by OxyR through the autophagy pathway. Therefore, our study reveals that OxyR regulates AMPK/ULK1/mTOR-dependent autophagy induction and APP reduction in mouse cortical astrocytes.
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Shu FQ, Lu YG, Tang HP, Ye ZY, Huang YN, Wang M, Tang ZQ, Chen L. Resveratrol noncompetitively inhibits glycine receptor-mediated currents in neurons of rat central auditory neurons. Brain Res Bull 2021; 169:18-24. [PMID: 33400956 DOI: 10.1016/j.brainresbull.2020.12.021] [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: 08/26/2020] [Revised: 12/21/2020] [Accepted: 12/30/2020] [Indexed: 01/17/2023]
Abstract
Resveratrol, a naturally occurring stilbene found in red wine, is known to modulate the activity of several types of ion channels and membrane receptors, including Ca2+, K+, and Na+ ion channels. However, little is known about the effects of resveratrol on some important receptors, such as glycine receptors and GABAA receptors, in the central nervous system (CNS). In the present study, the effects of resveratrol on glycine receptor or GABAA receptor-mediated currents in cultured rat inferior colliculus (IC) and auditory cortex (AC) neurons were studied using whole-cell voltage-clamp recordings. Resveratrol itself did not evoke any currents in IC neurons but it reversibly decreased the amplitude of glycine-induced current (IGly) in a concentration-dependent manner. Resveratrol did not change the reversal potential of IGly but it shifted the concentration-response relationship to the right without changing the Hill coefficient and with decreasing the maximum response of IGly. Interestingly, resveratrol inhibited the amplitude of IGly but not that of GABA-induced current (IGABA) in AC neurons. More importantly, resveratrol inhibited GlyR-mediated but not GABAAR-mediated inhibitory postsynaptic currents in IC neurons using brain slice recordings. Together, these results demonstrate that resveratrol noncompetitively inhibits IGly in auditory neurons by decreasing the affinity of glycine to its receptor. These findings suggest that the native glycine receptors but not GABAA receptors in central neurons are targets of resveratrol during clinical administrations.
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Affiliation(s)
- Fang-Qi Shu
- School of Life Sciences, Anhui University, Hefei, 230601, China; Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei, 230601, China
| | - Yun-Gang Lu
- CAS Key Laboratory of Brain Function and Diseases, School of Life Sciences, University of Science and Technology of China, Hefei, 230027, China; Auditory Research Laboratory, University of Science and Technology of China, Hefei, 230027, China
| | - Hui-Ping Tang
- CAS Key Laboratory of Brain Function and Diseases, School of Life Sciences, University of Science and Technology of China, Hefei, 230027, China; Auditory Research Laboratory, University of Science and Technology of China, Hefei, 230027, China
| | - Zeng-You Ye
- CAS Key Laboratory of Brain Function and Diseases, School of Life Sciences, University of Science and Technology of China, Hefei, 230027, China
| | - Yi-Na Huang
- CAS Key Laboratory of Brain Function and Diseases, School of Life Sciences, University of Science and Technology of China, Hefei, 230027, China; Auditory Research Laboratory, University of Science and Technology of China, Hefei, 230027, China
| | - Ming Wang
- CAS Key Laboratory of Brain Function and Diseases, School of Life Sciences, University of Science and Technology of China, Hefei, 230027, China; Auditory Research Laboratory, University of Science and Technology of China, Hefei, 230027, China
| | - Zheng-Quan Tang
- School of Life Sciences, Anhui University, Hefei, 230601, China; Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei, 230601, China.
| | - Lin Chen
- CAS Key Laboratory of Brain Function and Diseases, School of Life Sciences, University of Science and Technology of China, Hefei, 230027, China; Auditory Research Laboratory, University of Science and Technology of China, Hefei, 230027, China.
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Tam DNH, Nam NH, Elhady MT, Tran L, Hassan OG, Sadik M, Tien PTM, Elshafei GA, Huy NT. Effects of Mulberry on The Central Nervous System: A Literature Review. Curr Neuropharmacol 2020; 19:193-219. [PMID: 32379591 PMCID: PMC8033976 DOI: 10.2174/1570159x18666200507081531] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 12/09/2022] Open
Abstract
Background Mulberry, including several species belonging to genus Morus, has been widely used as a traditional medicine for a long time. Extracts and active components of mulberry have many positive neurological and biological effects and can become potential candidates in the search for new drugs for neurological disorders. Objectives We aimed to systematically review the medical literature for evidence of mulberry effects on the central nervous system. Methods We conducted a systematic search in nine databases. We included all in vivo studies investigating the effect of mulberry on the central nervous system with no restrictions. Results We finally included 47 articles for quality synthesis. Our findings showed that mulberry and its components possessed an antioxidant effect, showed a reduction in the cerebral infarct volume after stroke. They also improved the cognitive function, learning process, and reduced memory impairment in many animal models. M. alba and its extracts ameliorated Parkinson's disease-like behaviors, limited the complications of diabetes mellitus on the central nervous system, possessed anti-convulsant, anti-depressive, and anxiolytic effects. Conclusion Mulberry species proved beneficial to many neurological functions in animal models. The active ingredients of each species, especially M. alba, should be deeper studied for screening potential candidates for future treatments.
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Affiliation(s)
| | - Nguyen Hai Nam
- Department of General Surgery, University of Medicine and Pharmacy at Ho Chi Minh City, Vietnam
| | | | - Linh Tran
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 700000, Vietnam
| | | | - Mohamed Sadik
- Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | | | | | - Nguyen Tien Huy
- Evidence Based Medicine Research Group, Ton Duc Thang University, Ho Chi Minh City, 700000, Vietnam
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Hankittichai P, Lou HJ, Wikan N, Smith DR, Potikanond S, Nimlamool W. Oxyresveratrol Inhibits IL-1β-Induced Inflammation via Suppressing AKT and ERK1/2 Activation in Human Microglia, HMC3. Int J Mol Sci 2020; 21:ijms21176054. [PMID: 32842681 PMCID: PMC7504001 DOI: 10.3390/ijms21176054] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 08/19/2020] [Accepted: 08/21/2020] [Indexed: 12/16/2022] Open
Abstract
Oxyresveratrol (OXY), a major phytochemical component derived from several plants, has been proved to have several pharmacological properties. However, the role of OXY in regulating neuroinflammation is still unclear. Here, we focused mainly on the anti-neuroinflammatory effects at the cellular level of OXY in the interleukin-1 beta (IL-1β)-stimulated HMC3 human microglial cell line. We demonstrated that OXY strongly decreased the release of IL-6 and MCP-1 from HMC3 cells stimulated with IL-1β. Nevertheless, IL-1β could not induce the secretion of TNF-α and CXCL10 in this specific cell line, and that OXY did not have any effects on reducing the basal level of these cytokines in the sample culture supernatants. The densitometry analysis of immunoreactive bands from Western blot clearly indicated that IL-1β does not trigger the nuclear factor-kappa B (NF-κB) signaling. We discovered that OXY exerted its anti-inflammatory role in IL-1β-induced HMC3 cells by suppressing IL-1β-induced activation of the PI3K/AKT/p70S6K pathway. Explicitly, the presence of OXY for only 4 h could strongly inhibit AKT phosphorylation. In addition, OXY had moderate effects on inhibiting the activation of ERK1/2. Results from immunofluorescence study further confirmed that OXY inhibited the phosphorylation of AKT and ERK1/2 MAPK upon IL-1β stimulation in individual cells. These findings suggest that the possible anti-inflammatory mechanisms of OXY in IL-1β-induced HMC3 cells are mainly through its ability to suppress the PI3K/AKT/p70S6K and ERK1/2 MAPK signal transduction cascades. In conclusion, our study provided accumulated data that OXY is able to suppress IL-1β stimulation signaling in human microglial cells, and we believe that OXY could be a probable pharmacologic agent for altering microglial function in the treatment of neuroinflammation.
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Affiliation(s)
- Phateep Hankittichai
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (P.H.); (S.P.)
- Graduate School, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Hua Jane Lou
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520, USA;
| | - Nitwara Wikan
- Institute of Molecular Biosciences, Mahidol University, Salaya, Nakorn Pathom 73170, Thailand; (N.W.); (D.R.S.)
| | - Duncan R. Smith
- Institute of Molecular Biosciences, Mahidol University, Salaya, Nakorn Pathom 73170, Thailand; (N.W.); (D.R.S.)
| | - Saranyapin Potikanond
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (P.H.); (S.P.)
| | - Wutigri Nimlamool
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (P.H.); (S.P.)
- Correspondence: ; Tel./Fax: +66-53-934597
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Hankittichai P, Buacheen P, Pitchakarn P, Na Takuathung M, Wikan N, Smith DR, Potikanond S, Nimlamool W. Artocarpus lakoocha Extract Inhibits LPS-Induced Inflammatory Response in RAW 264.7 Macrophage Cells. Int J Mol Sci 2020; 21:ijms21041355. [PMID: 32079307 PMCID: PMC7072914 DOI: 10.3390/ijms21041355] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 02/13/2020] [Accepted: 02/14/2020] [Indexed: 02/07/2023] Open
Abstract
Artocarpus lakoocha Roxb. (AL) has been known for its high content of stilbenoids, especially oxyresveratrol. AL has been used in Thai traditional medicine for centuries. However, the role of AL in regulating inflammation has not been elucidated. Here we investigated the molecular mechanisms underlying the anti-inflammation of AL ethanolic extract in RAW 264.7 murine macrophage cell line. The HPLC results revealed that this plant was rich in oxyresveratrol, and AL ethanolic extract exhibited anti-inflammatory properties. In particular, AL extract decreased lipopolysaccharide (LPS)-mediated production and secretion of cytokines and chemokine, including IL-6, TNF-α, and MCP-1. Consistently, the extract inhibited the production of nitric oxide (NO) in the supernatants of LPS-stimulated cells. Data from the immunofluorescence study showed that AL extract suppressed nuclear translocation of nuclear factor-kappa B (NF-κB) upon LPS induction. Results from Western blot analysis further confirmed that AL extract strongly prevented the LPS-induced degradation of IκB which is normally required for the activation of NF-κB. The protein expression of iNOS and COX-2 in response to LPS stimulation was significantly decreased with the presence of AL extract. AL extract was found to play an anti-inflammatory role, in part through inhibiting LPS-induced activation of Akt. The extract had negligible impact on the activation of mitogen-activated protein kinase (MAPK) pathways. Specifically, incubation of cells with the extract for only 3 h demonstrated the rapid action of AL extract on inhibiting the phosphorylation of Akt, but not ERK1/2. Longer exposure (24 h) to AL extract was required to mildly reduce the phosphorylation of ERK1/2, p38, and JNK MAPKs. These results indicate that AL extract manipulates its anti-inflammatory effects mainly through blocking the PI3K/Akt and NF-κB signal transduction pathways. Collectively, we believe that AL could be a potential alternative agent for alleviating excessive inflammation in many inflammation-associated diseases.
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Affiliation(s)
- Phateep Hankittichai
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (P.H.); (M.N.T.); (S.P.)
- Graduate School, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Pensiri Buacheen
- Graduate School, Chiang Mai University, Chiang Mai 50200, Thailand;
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Pornsiri Pitchakarn
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Mingkwan Na Takuathung
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (P.H.); (M.N.T.); (S.P.)
- Research Center of Pharmaceutical Nanotechnology, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Nitwara Wikan
- Institute of Molecular Biosciences, Mahidol University, Salaya, Nakorn Pathom 73170, Thailand; (N.W.); (D.R.S.)
| | - Duncan R. Smith
- Institute of Molecular Biosciences, Mahidol University, Salaya, Nakorn Pathom 73170, Thailand; (N.W.); (D.R.S.)
| | - Saranyapin Potikanond
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (P.H.); (M.N.T.); (S.P.)
- Research Center of Pharmaceutical Nanotechnology, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Wutigri Nimlamool
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (P.H.); (M.N.T.); (S.P.)
- Research Center of Pharmaceutical Nanotechnology, Chiang Mai University, Chiang Mai 50200, Thailand
- Correspondence: ; Tel./Fax: +66-53-934597
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Duangdee N, Chamboonchu N, Kongkiatpaiboon S, Prateeptongkum S. Quantitative 1 HNMR spectroscopy for the determination of oxyresveratrol in Artocarpus lacucha heartwood. PHYTOCHEMICAL ANALYSIS : PCA 2019; 30:617-622. [PMID: 31020748 DOI: 10.1002/pca.2834] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 03/13/2019] [Accepted: 03/15/2019] [Indexed: 06/09/2023]
Abstract
INTRODUCTION Quantitative nuclear magnetic resonance (qNMR) spectroscopy is an analytical method based on the principles of NMR spectroscopy. The main advantages of this method are its simplicity, time efficiency, high accuracy and reproducibility, and it is a non-destructive technique. OBJECTIVE To evaluate and standardise the quality of Artocarpus lacucha heartwood. A method for quantifying its oxyresveratrol content using qNMR was developed. METHODOLOGY Proton (1 H)NMR (400 MHz) spectroscopy was used to analyse the methanol-d4 solution of a given amount of crude extract of A. lacucha heartwood using ethyl p-methoxycinnamate (EPMC) as an internal standard. The qNMR methodology was validated in terms of its linearity and range, limit of quantification (LOQ), stability, precision, and accuracy for the determination of the oxyresveratrol content. RESULTS The qNMR method was validated in terms of its linearity, range, LOQ, accuracy, precision, and stability. The quantitative determination of the oxyresveratrol content in the methanolic crude extract of A. lacucha was found to be 17% based on 1 HNMR analysis, which proved to be a reliable method as the results were comparable to those obtained by high-performance liquid chromatography (HPLC) analysis. CONCLUSIONS This study validated qNMR spectroscopy as a reliable analytical procedure to determine oxyresveratrol in A. lacucha heartwood. Therefore, this qNMR method can serve as an alternative to the classical HPLC methods for evaluating and standardising the quality of A. lacucha heartwood.
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Affiliation(s)
- Nongnaphat Duangdee
- Drug Discovery and Development Centre, Office of Advanced Science and Technology, Thammasat University (Rangsit Campus), Pathumthani, Thailand
| | - Natawadee Chamboonchu
- Department of Chemistry, Faculty of Science and Technology, Thammasat University (Rangsit Campus), Pathumthani, Thailand
| | - Sumet Kongkiatpaiboon
- Drug Discovery and Development Centre, Office of Advanced Science and Technology, Thammasat University (Rangsit Campus), Pathumthani, Thailand
| | - Saisuree Prateeptongkum
- Department of Chemistry, Faculty of Science and Technology, Thammasat University (Rangsit Campus), Pathumthani, Thailand
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Junsaeng D, Anukunwithaya T, Songvut P, Sritularak B, Likhitwitayawuid K, Khemawoot P. Comparative pharmacokinetics of oxyresveratrol alone and in combination with piperine as a bioenhancer in rats. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 19:235. [PMID: 31477089 PMCID: PMC6720094 DOI: 10.1186/s12906-019-2653-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 08/25/2019] [Indexed: 12/17/2022]
Abstract
Background Oxyresveratrol is a major bioactive component derived from the heartwood of Artocarpus lacucha. This compound exerts several biological activities, including neuroprotective effects in vitro and in vivo. However, there is limited pharmacokinetic information on this compound, especially its distribution in neuronal tissue and its route of excretion. The aim of this study was to investigate the pharmacokinetic profiles of oxyresveratrol alone and in combination with piperine as a bioenhancer in rats. Methods Male Wistar rats were administered with oxyresveratrol 10 mg/kg, oxyresveratrol 10 mg/kg plus piperine 1 mg/kg via intravenous or oxyresveratrol 100 mg/kg, oxyresveratrol 100 mg/kg plus piperine 10 mg/kg via oral gavage. Plasma, internal organs, urine, and feces were collected. Determination of the oxyresveratrol concentration in biological samples was performed by liquid chromatography tandem mass spectrometry. Results The combination with piperine had shown a significantly higher maximum concentration in plasma approximately 1500 μg/L within 1–2 h after oral dosing, and could increase oral bioavailability of oxyresveratrol approximately 2–fold. Oxyresveratrol could widely distributed most of the internal organs with a tissue to plasma ratio of 10–100 fold within 5 min after dosing. Urinary excretion of oxyresveratrol glucuronide was the major route of excretion after administration of oxyresveratrol alone and in combination with piperine. Conclusion The addition of piperine could enhance some of the pharmacokinetic properties of oxyresveratrol via both intravenous and oral administration. This pharmacokinetic information will be useful for appropriate strategies to develop oxyresveratrol as a phytopharmaceutical product. Electronic supplementary material The online version of this article (10.1186/s12906-019-2653-y) contains supplementary material, which is available to authorized users.
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Lee HJ, Feng JH, Sim SM, Lim SS, Lee JY, Suh HW. Effects of resveratrol and oxyresveratrol on hippocampal cell death induced by kainic acid. Anim Cells Syst (Seoul) 2019; 23:246-252. [PMID: 31489245 PMCID: PMC6711029 DOI: 10.1080/19768354.2019.1620853] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 04/25/2019] [Accepted: 05/15/2019] [Indexed: 12/26/2022] Open
Abstract
In the present study, we have examined the possible neuroprotective effects of resveratrol and oxyresveratrol against kainic-acid (KA)-induced hippocampal neuronal cell death. Either resveratrol or oxyresvertrol was orally administered 30 min prior to intracerebroventricular (i.c.v.) administration with KA (0.05 μg). Oral pretreatment with oxyresveratrol (50 mg/kg) significantly protected KA-induced hippocampal CA3 neuronal cell death. However, the same dose (50 mg/kg) or a higher dose (100 mg/kg) pretreatment with resveratrol did not affect KA-induced hippocampal neuronal cell death. Furthermore, the i.c.v. pretreatment with 30 μg of oxyresveratrol or resveratrol did not show the protective effect against KA-induced hippocampal neuronal cell death. In the immunohistochemical analysis, FoxO3a and pFoxO3a expressions in the hippocampal CA3 region were significantly increased 30 min after KA administration. Oral pretreatment with oxyresveratrol (50 mg/kg) significantly reduced KA-induced Forkhead homeobox type O3a (FoxO3a) and pFoxO3a expression in CA3 region of the hippocampus, suggesting that oxyresveratrol may exert a neuroprotective effect against KA-induced hippocampal neuronal cell death by reducing the levels of FoxO3a and pFoxO3a protein expression in the hippocampal CA3 region. Furthermore, it is suggested that the neuroprotective effect of orally administered oxyresveratrol against KA-induced neurotoxicity might be possibly mediated by some metabolites rather than direct action of oxyresveratrol on the central nervous system.
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Affiliation(s)
- Hee-Jung Lee
- Department of Pharmacology, Institute of Natural Medicine, College of Medicine Hallym University, Chuncheon, Republic of Korea
| | - Jing-Hui Feng
- Department of Pharmacology, Institute of Natural Medicine, College of Medicine Hallym University, Chuncheon, Republic of Korea
| | - Su-Min Sim
- Department of Pharmacology, Institute of Natural Medicine, College of Medicine Hallym University, Chuncheon, Republic of Korea
| | - Soon-Sung Lim
- Department of Food Science and Nutrition, Hallym University, Chuncheon, Republic of Korea
| | - Jae-Yong Lee
- Department of Biochemistry, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Hong-Won Suh
- Department of Pharmacology, Institute of Natural Medicine, College of Medicine Hallym University, Chuncheon, Republic of Korea
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Su Y, Sun C, Chen Y, Liu S, Jing N, Li S. Toxic trans-crotonaldehyde in mitochondria intercepted by oxyresveratrol contributing to anticancer. IUBMB Life 2019; 71:1014-1020. [PMID: 31012998 DOI: 10.1002/iub.2051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 04/01/2019] [Accepted: 04/01/2019] [Indexed: 11/08/2022]
Abstract
The aim of this study was to explore how the toxic trans-crotonaldehyde (TCA) in mitochondria or aldehyde dehydrogenase (ALDH) at different pHs was intercepted by oxyresveratrol (Oxy-Res) contributing to anticancer. Ultraviolet-visible (UV-vis) spectroscopy and Raman spectroscopy were employed. UV-vis spectra showed that the Oxy-Res red shifted the peak of the toxic TCA from 316 nm to 325 nm, while the peaks of the Oxy-Res shifted from 329 nm with 290 nm and 300 nm to 325 nm with 303 nm. In the mitochondria, the Oxy-Res blue shifted the peaks of the toxic TCA from 325 nm with 303 nm to 321 nm with 301 nm. Raman spectra revealed that the Oxy-Res caused shifting of the CHO of the toxic TCA from 1,689 cm-1 to 1,671 cm-1 with band decline. The CC of the toxic TCA at 1641 cm-1 was split into 1,639 cm-1 and 1,642 cm-1 with band decline. The bands of the Oxy-Res at 1634 cm-1 , 1,617 cm-1 , and 1,595 cm-1 disappeared. In the mitochondria, the CC of the toxic TCA at 1641 cm-1 splitting disappeared. In ALDH, with the decrease of pH from 7.8 to 6.5, the CHO of the toxic TCA did not red shift from 1,689 cm-1 to 1,674 cm-1 up to pH 6.5. There was no change in the CC of the toxic TCA at 1640 cm-1 in ALDH at different pHs. The conclusion of the study was that the CHO of the toxic TCA was intercepted by the Oxy-Res under the action of ALDH in the mitochondria, particularly at pH 7.8. © 2019 IUBMB Life, 2019.
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Affiliation(s)
- Yanbin Su
- College of Chemical and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin, China
| | - Chengyu Sun
- College of Information and Control Engineering, Jilin Institute of Chemical Technology, Jilin, China
| | - Yan Chen
- College of Chemical and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin, China
| | - Shichang Liu
- College of Chemical and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin, China
| | - Ning Jing
- College of Chemical and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin, China
| | - Shuxin Li
- College of Chemical and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin, China
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Maafi M, Al-Qarni MA. Φ-order spectrophotokinetic characterisation and quantification of trans-cis oxyresveratrol reactivity, photodegradation and actinometry. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 188:64-71. [PMID: 28692869 DOI: 10.1016/j.saa.2017.06.067] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 06/13/2017] [Accepted: 06/30/2017] [Indexed: 06/07/2023]
Abstract
A new Φ-order kinetic method was proposed in this study for the investigation of trans-cis photoisomerization reaction of Oxyresveratrol (ORVT) subjected to non-isosbestic irradiation. In ethanolic media, it has been proven that forward (ΦA→Bλirr) and reverse (ΦB→Aλirr) reaction quantum yields were dependent on the monochromatic irradiation wavelength according to sigmoid patterns over the spectral ranges of their electronic absorption (260-360nm). An 11.4- and 6.6-fold increases were recorded for ΦB→Aλirr and ΦA→Bλirr, respectively. The efficiencies of the former (ΦB→Aλirr, ranging between 2.3×10-2 and 26.3×10-2) were 33 to 60% smaller than those of the respective ΦA→Bλirr measured at the irradiation wavelengths selected. Overall, between 57 and 97% degradation of the initial trans-ORVT was observed under relatively weak light intensities, with the highest values recorded at the longest wavelengths. These findings strongly recommend protection from light in all situations of this biologically important phytomolecule that possesses therapeutic value of interest to pharmaceutical applications. The Φ-order kinetics also offered a simple way to develop a reliable actinometric method that proved ORVT to be an efficient actinometer for the dynamic range 295-360nm. The usefulness of Φ-order kinetics for the investigation and quantification of phytoproducts' photodegradation was discussed.
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Affiliation(s)
- Mounir Maafi
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK.
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Sgarbieri VC, Pacheco MTB. Premature or pathological aging: longevity. BRAZILIAN JOURNAL OF FOOD TECHNOLOGY 2017. [DOI: 10.1590/1981-6723.19416] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Abstract The main objective of this literature review was to summarize and characterize the main factors and events that may negatively influence quality of life and human longevity. The factors that act on premature aging processes are essentially the same as those of natural or healthy aging, but in a more intense and uncontrolled manner. Such factors are: 1) genetic (genome); 2) metabolic (metabolome); 3) environmental (life conditions and style, including diet). Factors 1 and 2 are more difficult to control by individuals; once depending on socioeconomic, cultural and educational conditions. Differently of environmental factors that may be totally controlled by individuals. Unfamiliarity with these factors leads to chronic and/or degenerative diseases that compromise quality of life and longevity.
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Kitisripanya T, Inyai C, Krittanai S, Likhitwitayawuid K, Sritularak B, Ploypradith P, Tanaka H, Morimoto S, Putalun W. A monoclonal antibody-based immunoassay for the determination of oxyresveratrol from Artocarpus lacucha Buch.-Ham. J Nat Med 2017; 71:523-530. [PMID: 28364228 DOI: 10.1007/s11418-017-1083-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 03/13/2017] [Indexed: 11/26/2022]
Abstract
Oxyresveratrol is a major active compound in the heartwood of Artocarpus lacucha. It plays an important role in anti-tyrosinase, antioxidant, anti-inflammatory, antiviral and neuroprotective properties. There are many A. lacucha commercial products available on the market for skin whitening and anti-aging effects. To evaluate the quality of raw material from the plant, a monoclonal antibody (MAb) against oxyresveratrol was generated in this study. The immunogen was prepared by the Mannich reaction for the conjugation of oxyresveratrol and cationized bovine serum albumin (cBSA). The conjugation of oxyresveratrol-cBSA at a ratio of 1:50 was used for the immunization. The novel MAb (E4) was specific to oxyresveratrol and resveratrol. An indirect competitive enzyme-linked immunosorbent assay (ELISA) using the MAb (E4) was developed for the determination of oxyresveratrol. The linear range for the measurement of oxyresveratrol was 63-500 ng/mL and the precision (% relative standard deviation) was found to be <10% with the percentages of recovery from 95.93-103.55%. According to the validation analysis, the established ELISA can be applied for the determination of oxyresvertrol in the heartwood of A. lacucha and samples of the traditional drug Puag-Haad. With reliability and high sensitivity, this assay can provide an alternative approach for the quantitative analysis of oxyresveratrol in A. lacucha samples.
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Affiliation(s)
- Tharita Kitisripanya
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Chadathorn Inyai
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Supaluk Krittanai
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
| | | | - Boonchoo Sritularak
- Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Poonsakdi Ploypradith
- Laboratory of Medicinal Chemistry, Program in Chemical Biology, Chulabhorn Research Institute, Chulabhorn Graduate Institute, 54 Kampaeng Phet 6 Road, Bangkok, Thailand
| | - Hiroyuki Tanaka
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Satoshi Morimoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand.
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand.
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Rahman MA, Bishayee K, Sadra A, Huh SO. Oxyresveratrol activates parallel apoptotic and autophagic cell death pathways in neuroblastoma cells. Biochim Biophys Acta Gen Subj 2016; 1861:23-36. [PMID: 27815218 DOI: 10.1016/j.bbagen.2016.10.025] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 09/05/2016] [Accepted: 10/29/2016] [Indexed: 01/31/2023]
Abstract
BACKGROUND Drug resistance from apoptosis is a challenging issue with different cancer types, and there is an interest in identifying other means of inducing cytotoxicity. Here, treatment of neuroblastoma cells with oxyresveratrol (OXYRES), a natural antioxidant, led to dose-dependent cell death and increased autophagic flux along with activation of caspase-dependent apoptosis. METHODS For cell viability, we performed the CCK-8 assay. Protein expression changes were with Western blot and immunocytochemistry. Silencing of proteins was with siRNA. The readouts for cell cycle, mitochondria membrane potential, caspase-3, autophagy and apoptosis were performed with flow cytometry. RESULTS Phosphorylation of p38 MAPK increased with OXYRES treatment and inhibition of p38 reduced autophagy and cell death from OXYRES. In contrast, PI3K/AKT/mTOR signaling decreased in the target cells with OXYRES and inhibition of PI3K or mTOR enhanced OXYRES-mediated cytotoxicity with increased levels of autophagy. Modulation of either of the apoptosis and autophagy flux pathways affected the extent of cell death by OXYRES, but did not affect the indicators of these pathways with respect to each other. Both pathways were independent of ROS generation or p53 activation. CONCLUSION OXYRES led to cell death from autophagy, which was independent of apoptosis induction. The OXYRES effects were due to changes in the activity levels of p38 MAPK and PI3K/AKT/mTOR. GENERAL SIGNIFICANCE With two independent and parallel pathways for cytotoxicity induction in target cells, this study puts forward a potential utility for OXYRES or the pathways it represents as novel means of inducing cell death in neuroblastoma cells.
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Affiliation(s)
- Md Ataur Rahman
- Department of Pharmacology, College of Medicine, Institute of Natural Medicine, Hallym University, South Korea
| | - Kausik Bishayee
- Department of Pharmacology, College of Medicine, Institute of Natural Medicine, Hallym University, South Korea
| | - Ali Sadra
- Department of Pharmacology, College of Medicine, Institute of Natural Medicine, Hallym University, South Korea
| | - Sung-Oh Huh
- Department of Pharmacology, College of Medicine, Institute of Natural Medicine, Hallym University, South Korea.
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Chatsumpun N, Chuanasa T, Sritularak B, Lipipun V, Jongbunprasert V, Ruchirawat S, Ploypradith P, Likhitwitayawuid K. Oxyresveratrol: Structural Modification and Evaluation of Biological Activities. Molecules 2016; 21:489. [PMID: 27104505 PMCID: PMC6273646 DOI: 10.3390/molecules21040489] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 04/05/2016] [Accepted: 04/11/2016] [Indexed: 11/22/2022] Open
Abstract
Oxyresveratrol (2,4,3′,5′-tetrahydroxystilbene, 1), a phytoalexin present in large amounts in the heartwood of Artocarpus lacucha Buch.-Ham., has been reported to possess a wide variety of biological activities. As part of our continuing studies on the structural modification of oxyresveratrol, a library of twenty-six compounds was prepared via O-alkylation, aromatic halogenation, and electrophilic aromatic substitution. The two aromatic rings of the stilbene system of 1 can be chemically modulated by exploiting different protecting groups. Such a strategy allows for selective and exclusive modifications on either ring A or ring B. All compounds were evaluated in vitro for a panel of biological activities, including free radical scavenging activity, DNA protective properties, antiherpetic activity, inhibition of α-glucosidase and neuraminidase, and cytotoxicity against some cancer cell lines. Several derivatives were comparably active or even more potent than the parent oxyresveratrol and/or the appropriate positive controls. The partially etherified analogs 5′-hydroxy-2,3′,4-trimethoxystilbene and 3′,5′-dihydroxy-2,4-dimethoxystilbene demonstrated promising anti-herpetic and DNA protective activities, offering new leads for neuropreventive agent research, whereas 5′-hydroxy-2,3′,4,-triisopropoxystilbene displayed anti-α-glucosidase effects, providing a new lead molecule for anti-diabetic drug development. 3′,5′-Diacetoxy-2,4-diisopropoxystilbene showed potent and selective cytotoxicity against HeLa cancer cells, but the compound still needs further in vivo investigation to verify its anticancer potential.
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Affiliation(s)
- Nutputsorn Chatsumpun
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Taksina Chuanasa
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Boonchoo Sritularak
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Vimolmas Lipipun
- Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Vichien Jongbunprasert
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Somsak Ruchirawat
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, and Program in Chemical Biology, Chulabhorn Graduate Institute, 54 Kampaeng Phet 6 Road, Bangkok 10210, Thailand.
| | - Poonsakdi Ploypradith
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, and Program in Chemical Biology, Chulabhorn Graduate Institute, 54 Kampaeng Phet 6 Road, Bangkok 10210, Thailand.
| | - Kittisak Likhitwitayawuid
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
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Ahmed T, Javed S, Javed S, Tariq A, Šamec D, Tejada S, Nabavi SF, Braidy N, Nabavi SM. Resveratrol and Alzheimer’s Disease: Mechanistic Insights. Mol Neurobiol 2016; 54:2622-2635. [DOI: 10.1007/s12035-016-9839-9] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 03/04/2016] [Indexed: 12/28/2022]
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Sangsen Y, Wiwattanawongsa K, Likhitwitayawuid K, Sritularak B, Graidist P, Wiwattanapatapee R. Influence of surfactants in self-microemulsifying formulations on enhancing oral bioavailability of oxyresveratrol: Studies in Caco-2 cells and in vivo. Int J Pharm 2015; 498:294-303. [PMID: 26680318 DOI: 10.1016/j.ijpharm.2015.12.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 11/09/2015] [Accepted: 12/03/2015] [Indexed: 10/22/2022]
Abstract
Self-microemulsifying drug delivery systems (SMEDDS) containing two types (Tween80 and Labrasol) and two levels (low; 5% and high; 15%) of co-surfactants were formulated to evaluate the impact of surfactant phase on physical properties and oral absorption of oxyresveratrol (OXY). All formulations showed a very rapid release in the simulated gastric fluid (SGF) pH 1.2. After dilution with different media, the microemulsion droplet sizes of the Tween80-based (∼26 to 36 nm) were smaller than that of the Labrasol-based systems (∼34 to 45 nm). Both systems with high levels of surfactant increased the Caco-2 cells permeability of OXY compared to those with low levels of surfactant (1.4-1.7 folds) and the unformulated OXY (1.9-2.0 folds). It was of interest, that there was a reduction (4.4-5.3 folds) in the efflux transport of OXY from both systems compared to the unformulated OXY. The results were in good agreement with the in vivo absorption studies of such OXY-formulations in rats. Significantly greater values of Cmax and AUC(0-10h) (p<0.05) were obtained from the high levels of Tween80-based (F(r,0-10h) 786.32%) compared to those from the Labrasol-based system (F(r,0-10h) 218.32%). These finding indicate the importance of formulation variables such as type and quantity of surfactant in the SMEDDS to enhance oral drug bioavailability.
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Affiliation(s)
- Yaowaporn Sangsen
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand; Phytomedicine and Pharmaceutical Biotechnology Excellence Research Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand.
| | - Kamonthip Wiwattanawongsa
- Phytomedicine and Pharmaceutical Biotechnology Excellence Research Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand; Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand.
| | - Kittisak Likhitwitayawuid
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Boonchoo Sritularak
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Potchanapond Graidist
- Department of Biomedical Sciences, Faculty of Medicine, Prince of Songkla University, Hat-Yai, Songkhla 90110, Thailand; The Excellent Research Laboratory of Cancer Molecular Biology, Prince of Songkla University, Hat-Yai, Songkhla 90110, Thailand.
| | - Ruedeekorn Wiwattanapatapee
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand; Phytomedicine and Pharmaceutical Biotechnology Excellence Research Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand.
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Lim YH, Kim KH, Kim JK. Source, Biosynthesis, Biological Activities and Pharmacokinetics of Oxyresveratrol. ACTA ACUST UNITED AC 2015. [DOI: 10.9721/kjfst.2015.47.5.545] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Assessing Antioxidant Capacity in Brain Tissue: Methodologies and Limitations in Neuroprotective Strategies. Antioxidants (Basel) 2014; 3:636-48. [PMID: 26785231 PMCID: PMC4665495 DOI: 10.3390/antiox3040636] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 07/24/2014] [Accepted: 09/02/2014] [Indexed: 12/18/2022] Open
Abstract
The number of putative neuroprotective compounds with antioxidant activity described in the literature continues to grow. Although these compounds are validated using a variety of in vivo and in vitro techniques, they are often evaluated initially using in vitro cell culture techniques in order to establish toxicity and effective concentrations. Both in vivo and in vitro methodologies have their respective advantages and disadvantages, including, but not limited to, cost, time, use of resources and technical limitations. This review expands on the inherent benefits and drawbacks of in vitro and in vivo methods for assessing neuroprotection, especially in light of proper evaluation of compound efficacy and neural bioavailability. For example, in vivo studies can better evaluate the effects of protective compounds and/or its metabolites on various tissues, including the brain, in the whole animal, whereas in vitro studies can better discern the cellular and/or mechanistic effects of compounds. In particular, we aim to address the question of appropriate and accurate extrapolation of findings from in vitro experiment-where compounds are often directly applied to cellular extracts, potentially at higher concentrations than would ever cross the blood-brain barrier-to the more complex scenario of neuroprotection due to pharmacodynamics in vivo.
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Richard T, Temsamani H, Delaunay JC, Krisa S, Mérillon JM. Stilbènes : de la chimie à la neuroprotection. CAHIERS DE NUTRITION ET DE DIETETIQUE 2014. [DOI: 10.1016/j.cnd.2014.03.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Wang CP, Zhang LZ, Li GC, Shi YW, Li JL, Zhang XC, Wang ZW, Ding F, Liang XM. Mulberroside a protects against ischemic impairment in primary culture of rat cortical neurons after oxygen-glucose deprivation followed by reperfusion. J Neurosci Res 2014; 92:944-54. [DOI: 10.1002/jnr.23374] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 12/27/2013] [Accepted: 01/27/2014] [Indexed: 12/12/2022]
Affiliation(s)
- Cai-Ping Wang
- Jiangsu Key Laboratory of Neuroregeneration; Nantong University; Nantong China
| | - Lu-Zhong Zhang
- Jiangsu Key Laboratory of Neuroregeneration; Nantong University; Nantong China
| | - Gui-Cai Li
- Jiangsu Key Laboratory of Neuroregeneration; Nantong University; Nantong China
| | - Yun-wei Shi
- Jiangsu Key Laboratory of Neuroregeneration; Nantong University; Nantong China
| | - Jian-Long Li
- Jiangsu Key Laboratory of Neuroregeneration; Nantong University; Nantong China
| | - Xiao-Chuan Zhang
- Jiangsu Key Laboratory of Neuroregeneration; Nantong University; Nantong China
| | - Zhi-Wei Wang
- Jiangsu Key Laboratory of Neuroregeneration; Nantong University; Nantong China
- Department of Pharmacology; University of California; Irvine California
| | - Fei Ding
- Jiangsu Key Laboratory of Neuroregeneration; Nantong University; Nantong China
| | - Xin-Miao Liang
- Jiangsu Key Laboratory of Neuroregeneration; Nantong University; Nantong China
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian China
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Xu L, Liu C, Xiang W, Chen H, Qin X, Huang X. Advances in the Study of Oxyresveratrol. INT J PHARMACOL 2013. [DOI: 10.3923/ijp.2014.44.54] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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26
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Weber JT, Lamont M, Chibrikova L, Fekkes D, Vlug AS, Lorenz P, Kreutzmann P, Slemmer JE. Potential neuroprotective effects of oxyresveratrol against traumatic injury. Eur J Pharmacol 2012; 680:55-62. [PMID: 22489319 DOI: 10.1016/j.ejphar.2012.01.036] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Oxyresveratrol is a potent antioxidant and free-radical scavenger found in mulberry wood (Morus alba L.) with demonstrated protective effects against cerebral ischemia. We analyzed the neuroprotective ability of oxyresveratrol using an in vitro model of stretch-induced trauma in co-cultures of neurons and glia, or by exposing cultures to high levels of glutamate. Cultures were treated with 25 μM, 50 μM or 100 μM oxyresveratrol at the time of injury. Trauma produced marked neuronal death when measured 24 h post-injury, and oxyresveratrol significantly inhibited this death. Microscopic examination of glia suggested signs of toxicity in cultures treated with 100 μM oxyresveratrol, as demonstrated by elevated S-100B protein release and a high proportion of cells with condensed nuclei. Cultures exposed to glutamate (100 μM) for 24 h exhibited ~ 37% neuronal loss, which was not inhibited by oxyresveratrol. These results show that the two pathologies of high glutamate exposure and trauma are differentially affected by oxyresveratrol treatment in vitro. Further studies using oxyresveratrol in trauma models are warranted, as toxicity to glia could be beneficial by inhibiting reactive gliosis, which often occurs after trauma.
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Affiliation(s)
- John T Weber
- School of Pharmacy, Health Sciences Centre, 300 Prince Philip Drive, Memorial University of Newfoundland, St. John's, NL, Canada, A1B 3V6.
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Deng H, He X, Xu Y, Hu X. Oxyresveratrol from Mulberry as a dihydrate. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o1318-9. [PMID: 22590220 PMCID: PMC3344458 DOI: 10.1107/s1600536812014018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 03/31/2012] [Indexed: 01/02/2023]
Abstract
The title compound {systematic name: 4-[(E)-2-(3,5-dihydroxyphenyl)ethenyl]benzene-1,3-diol dihydrate}, C14H12O4·2H2O, a derivative of resveratrol, was isolated from mulberry. The linking C=C double bond has a trans conformation and allows the formation of a conjugated system throughout the molecule. The dihedral angle between the benzene rings is 9.39 (9)°. In the crystal, molecules are connected into a three-dimensional architecture through O—H⋯O hydrogen bonds between hydroxy groups of oxyresveratrol and solvent water molecules.
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Huang H, Chen G, Lu Z, Zhang J, Guo DA. Identification of seven metabolites of oxyresveratrol in rat urine and bile using liquid chromatography/tandem mass spectrometry. Biomed Chromatogr 2011; 24:426-32. [PMID: 19662623 DOI: 10.1002/bmc.1309] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Oxyresveratrol (trans-2,4,3',5'-tetrahydroxystilbene) is a major compound isolated from Smilax china, a Chinese herbal medicine. The rat urine and bile samples were pretreated by solid-phase extraction method after oral administration at a dose of 100 mg/kg of oxyresveratrol. Seven metabolites were identified by LC-MS/MS method with electrospray ionization in negative ion mode. The results indicated that main metabolites of oxyresveratrol were monoglucuronided and monosulfated oxyresveratrol. Based on the results, the metabolic pathway of oxyresveratrol in rat urine and bile was proposed.
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Affiliation(s)
- Huilian Huang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 199 Guo Shoujing Road, Zhangjiang, Shanghai, People's Republic of China
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Chatsumpun M, Chuanasa T, Sritularak B, Likhitwitayawuid K. Oxyresveratrol Protects against DNA Damage Induced by Photosensitized Riboflavin. Nat Prod Commun 2011. [DOI: 10.1177/1934578x1100600110] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Riboflavin can be photosensitized to produce reactive oxygen species. In the present study, a DNA damage assay was developed based on the photo reaction of riboflavin. In this test system, oxyresveratrol showed higher DNA protective effect than the well-known antioxidants Trolox and ascorbic acid. The results suggest potential applications for oxyresveratrol as an antiaging agent and a riboflavin stabilizer.
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Affiliation(s)
- Manussanunt Chatsumpun
- Department of Phamacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Taksina Chuanasa
- Department of Phamacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Boonchoo Sritularak
- Department of Phamacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Kittisak Likhitwitayawuid
- Department of Phamacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
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Bertram RM, Takemoto JK, Remsberg CM, Vega-Villa KR, Sablani S, Davies NM. High-performance liquid chromatographic analysis: applications to nutraceutical content and urinary disposition of oxyresveratrol in rats. Biomed Chromatogr 2010; 24:516-21. [PMID: 19739255 DOI: 10.1002/bmc.1320] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A high-performance liquid chromatographic (HPLC) method was developed for the analysis of the stilbene, oxyresveratrol. This method involves the use of a Luna C(18) column with ultraviolet detection at 320 nm. The mobile phase consisted of acetonitrile, water and formic acid (30 : 70 : 0.04 v/v) with a flow rate of 0.6 mL/min. The calibration curves were linear over the range of 0.5-100.0 microg/mL. The mean extraction efficiency was between 98.9 and 109%. The precision of the assay was 0.069-18.4% (RSD%), and within 20% at the limit of quantitation (0.5 microg/mL). The bias of the assay was <15% and within 15% at the limit of quantitation. This assay was successfully applied to pre-clinical pharmacokinetic samples from rat urine and to nutraceutical product analysis.
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Affiliation(s)
- Rebecca M Bertram
- Department of Pharmaceutical Sciences and Pharmacology, Washington State University, Pullman, 99164-6534, USA
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Saleh MC, Connell BJ, Saleh TM. Resveratrol preconditioning induces cellular stress proteins and is mediated via NMDA and estrogen receptors. Neuroscience 2009; 166:445-54. [PMID: 20040366 DOI: 10.1016/j.neuroscience.2009.12.060] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2009] [Revised: 12/22/2009] [Accepted: 12/23/2009] [Indexed: 11/20/2022]
Abstract
Resveratrol pretreatment has been shown to provide neuroprotection in models of cerebral ischemia. This phenomenon, commonly termed preconditioning, promotes ischemic tolerance and may involve mild activation of endoplasmic reticulum stress pathways in the affected tissue. Systemic injection of resveratrol (2 x 10(-3), 2 x 10(-4), 1 x 10(-4) mg/kg) 30 min prior to a 4 h period of right middle cerebral artery occlusion significantly reduced infarct area in the insular region of rat prefrontal cortex. This affect was blocked when resveratrol treatment was combined with a non-selective estrogen receptor antagonist, or preceded by intracortical injection of an NMDA receptor antagonist. The neuroprotective effect of resveratrol was associated with reduced renal sympathetic nerve activity as well as induction of resident endoplasmic reticulum chaperone proteins, glucose-regulated proteins 78 and 94. The calcium-sensitive chaperone heat shock protein 70 and the cysteine protease m calpain did not respond to resveratrol pretreatment. However, a significant induction of heat shock protein 70 was observed in the contralateral cortex of resveratrol pretreated rats following 4 h of right middle cerebral artery occlusion. These data suggest that resveratrol preconditioning promotes ischemic tolerance in the short term, in part via effects mediated through activation of estrogen and NMDA receptors, as well as through mild activation of cellular stress proteins.
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Affiliation(s)
- M C Saleh
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI, Canada
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Huang HL, Zhang JQ, Chen GT, Lu ZQ, Sha N, Guo DA. Simultaneous Determination of Oxyresveratrol and Resveratrol in Rat Bile and Urine by HPLC after Oral Administration of Smilax china Extract. Nat Prod Commun 2009. [DOI: 10.1177/1934578x0900400617] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Oxyresveratrol ( trans-2,4,3′,5′-tetrahydroxystilbene, OXY) and resveratrol ( trans-3,5,4′-trihydroxystilbene, RES) are the two most important constituents of the traditional Chinese medicine Smilax china. A reversed-phase high-performance liquid chromatographic method was developed to determine OXY and RES in rat bile and urine after oral administration of Smilax china extract. The biological samples were analyzed by HPLC on Aglient Zorbax SB-C18 column (250 × 4.6 mm, 5 μm) at a wavelength 320 nm and at a flow rate of 1.0 mL/min. The method was accurate and reproducible for determination. The cumulative excretion of OXY and RES was 0.29% and 0.97% in bile samples, 0.84% and 0.65% in urine samples, respectively.
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Affiliation(s)
- Hui-lian Huang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, P.R. China
- Key Laboratory of Modern Preparation of TCM, JiangXi University Of Traditional Chinese Medicine, Ministry of Education, Nanchang 330004, P.R. China
| | - Jin-qiang Zhang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, P.R. China
| | - Guang-tong Chen
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, P.R. China
| | - Zhi-qiang Lu
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, P.R. China
| | - Na Sha
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, P.R. China
| | - De-an Guo
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, P.R. China
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Chao J, Yu MS, Ho YS, Wang M, Chang RCC. Dietary oxyresveratrol prevents parkinsonian mimetic 6-hydroxydopamine neurotoxicity. Free Radic Biol Med 2008; 45:1019-26. [PMID: 18675900 DOI: 10.1016/j.freeradbiomed.2008.07.002] [Citation(s) in RCA: 106] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2008] [Revised: 06/25/2008] [Accepted: 07/05/2008] [Indexed: 01/01/2023]
Abstract
Oxyresveratrol (OXY) is a polyhydroxylated stilbene existing in mulberry. Increasing lines of evidence have shown its neuroprotective effects against Alzheimer disease and stroke. However, little is known about its neuroprotective effect in Parkinson disease (PD). Owing to its antioxidant activity, blood-brain barrier permeativity, and water solubility, we hypothesized that OXY may exert neuroprotective effects against parkinsonian mimetic 6-hydroxydopamine (6-OHDA) neurotoxicity. Neuroblastoma SH-SY5Y cells have long been used as dopaminergic neurons in PD research. We found that both pretreatment and posttreatment with OXY on SH-SY5Y cells significantly reduced the release of lactate dehydrogenase, the activity of caspase-3, and the generation of intracellular reactive oxygen species triggered by 6-OHDA. Compared to resveratrol, OXY exhibited a wider effective dosage range. We proved that OXY could penetrate the cell membrane by HPLC analysis of cell extracts. These results suggest that OXY may act as an intracellular antioxidant to reduce oxidative stress induced by 6-OHDA. Western blot analysis demonstrated that OXY markedly attenuated 6-OHDA-induced phosphorylation of JNK and c-Jun. Furthermore, we proved that OXY increased the basal levels of SIRT1, which may disclose new pathways accounting for the neuroprotective effects of OXY. Taken together, our results suggest OXY, a dietary phenolic compound, as a potential nutritional candidate for protection against neurodegeneration in PD.
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Affiliation(s)
- Jianfei Chao
- School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
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Huang H, Zhang J, Chen G, Lu Z, Wang X, Sha N, Shao B, Li P, Guo DA. High performance liquid chromatographic method for the determination and pharmacokinetic studies of oxyresveratrol and resveratrol in rat plasma after oral administration of Smilax china extract. Biomed Chromatogr 2008; 22:421-7. [PMID: 18004743 DOI: 10.1002/bmc.950] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A sensitive and simple HPLC method has been developed and validated for the determination of oxyresveratrol (trans-2,4,3',5'-tetrahydroxystilbene, OXY) and resveratrol (trans-3,5,4'-trihydroxystilbene, RES) in rat plasma. The plasma samples were extracted with ethyl acetate and analyzed using HPLC on an Aglient Zorbax SB-C(18) column (250 x 4.6 mm, 5 microm) at a wavelength 320 nm, with a linear gradient of (A) acetonitrile and (B) 0.5% aqueous acetic acid (v/v), at a flow rate of 1.0 mL/min. The method was linear over the range of 0.1265-25.3 microg/mL for OXY and 0.117-23.4 microg/mL for RES. The extraction recovery for OXY, RES and internal standard ranged from 71.1 to 88.3%. The intra- and inter-day precisions were better than 10%, and the accuracy ranged from 89 to 108%. The validated method was used to study the pharmacokinetic profiles of OXY and RES in rat plasma after oral administration of Smilax china root extract.
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Affiliation(s)
- Huilian Huang
- College of Traditional Chinese Material Medica, China Pharmaceutical University, Nanjing 210009, People's Republic of China
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Ji HF, Zhang HY. Multipotent natural agents to combat Alzheimer's disease. Functional spectrum and structural features. Acta Pharmacol Sin 2008; 29:143-51. [PMID: 18215342 DOI: 10.1111/j.1745-7254.2008.00752.x] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
With the accelerated aging of human society, Alzheimeros disease (AD) is becoming one of the biggest threats to human health. Since multiple pathogenetic factors are implicated in the disease, the current hitting-one-target therapeutic strategy has proved inefficient to AD. As a result, finding multipotent agents that aim at multiple targets is attracting more and more attention. Although multifunctional anti-AD agents can be created by incorporating two or more pharmacophores in one scaffold, naturally occurring multipotent agents also attracted much attention. In this review, we first describe the functions of some typical naturally originated multipotent anti-AD compounds, then summarize their structural features and reveal that phenolics with certain flexibility predominate in these agents, which are of significance to find novel multipotent drugs to combat AD and other neurodegenerative diseases as well.
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Affiliation(s)
- Hong-fang Ji
- Shandong Provincial Research Center for Bioinformatic Engineering and Technique, Center for Advanced Study, Shandong University of Technology, Zibo 255049, China
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36
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Zhang HY. Can food-derived multipotent agents reduce the risk of Alzheimer's disease. Trends Food Sci Technol 2007. [DOI: 10.1016/j.tifs.2007.04.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ban JY, Jeon SY, Nguyen TTH, Bae K, Song KS, Seong YH. Neuroprotective effect of oxyresveratrol from smilacis chinae rhizome on amyloid Beta protein (25-35)-induced neurotoxicity in cultured rat cortical neurons. Biol Pharm Bull 2007; 29:2419-24. [PMID: 17142975 DOI: 10.1248/bpb.29.2419] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We previously reported that Smilacis chinae rhizome inhibits amyloid beta protein (25-35) (Abeta (25-35))-induced neurotoxicity in cultured rat cortical neurons. The present study evaluated the neuroprotective effect of oxyresveratrol isolated from Smilacis chinae rhizome against Abeta (25-35)-induced neurotoxicity on cultured rat cortical neurons. Oxyresveratrol over the concentration range of 1-10 microM significantly inhibited 10 microM Abeta (25-35)-induced neuronal cell death, which was measured by a 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl-tetrazolium bromide (MTT) assay and Hoechst 33342 staining. Oxyresveratrol (10 microM) inhibited 10 microM Abeta (25-35)-induced elevation of cytosolic calcium concentration ([Ca2+]c), which was measured by a fluorescent dye, Fluo-4 AM. Oxyresveratrol (1, 10 microM) also inhibited glutamate release into medium and reactive oxygen species (ROS) generation induced by 10 microM Abeta (25-35). These results suggest that oxyresveratrol prevents Abeta (25-35)-induced neuronal cell damage by interfering with the increase of [Ca2+]c, and then by inhibiting glutamate release and ROS generation. Furthermore, these effects of oxyresveratrol may be associated with the neuroprotective effect of Smilacis chinae rhizome.
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Affiliation(s)
- Ju Yeon Ban
- College of Veterinary Medicine and Research Institute of Herbal Medicine, Chungbuk National University, South Korea
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Mouihate A, Horn TF, Pittman QJ. Oxyresveratrol dampens neuroimmune responses in vivo: a selective effect on TNF-α. Am J Physiol Regul Integr Comp Physiol 2006; 291:R1215-21. [PMID: 16809485 DOI: 10.1152/ajpregu.00250.2006] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Consumption of nutrients rich in hydroxystilbenes has been promoted because of their health benefits, including dampening of inflammatory responses. However, few studies have examined their effects in vivo. Here, we show that the hydroxystilbene oxyresveratrol (trans-2,3′,4,5′-tetrahydroxystilbene: o-RES) blocked hypothermia but caused no significant effect on the febrile response to the immune stimulus, bacterial LPS in rats. This was associated with a reduction in the LPS-induced plasma cytokine, tumor necrosis factor (TNF)-α, but not IL-6. Both IL-6-stimulated STAT-3 and LPS-induced cycoloxygenase-2 expression in the hypothalamus were not affected by o-RES. These data strongly suggest that the o-RES-induced dampening of neuroimmune responses is largely due to its inhibitory effect on TNF-α production. In contrast to in vitro experiments, o-RES has no direct effect on NF-κB signaling pathway in vivo. The specific inhibitory effect of o-RES on TNF-α opens new avenues for the clinical use of o-RES in pathological conditions where excessive production of TNF-α is deleterious.
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Affiliation(s)
- A Mouihate
- Hotchkiss Brain Institute, Dept. of Physiology and Biophysics, Faculty of Medicine, Univ. of Calgary, 3330 Hospital Dr., NW, Calgary, Alberta T2N 4N1, Canada.
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