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Neelakantan M, Latha V, Thalamuthu S. Polyaromatic ring containing β-diketone derivatives with antiproliferative activity toward human breast cancer cell lines: Synthesis, structure, DNA binding and molecular docking. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131573] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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2
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Kang B, Kim JH, Kim CY, Hong J, Choi HS. Dibenzoylmethane, a Component of Licorice, Suppresses Monocyte-to-Macrophage Differentiation and Inflammatory Responses in Human Monocytes and Mouse Macrophages. Biol Pharm Bull 2018; 41:1228-1236. [DOI: 10.1248/bpb.b18-00064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Bobin Kang
- Department of Public Health Sciences, Korea University
| | - Joo Hyoun Kim
- Department of Food Science and Technology, College of Natural Science, Seoul Women’s University
| | | | - Jungil Hong
- Department of Food Science and Technology, College of Natural Science, Seoul Women’s University
| | - Hyeon-Son Choi
- Department of Food Science and Technology, College of Natural Science, Seoul Women’s University
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3
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Nascimento FR, Moura TA, Baeta JV, Publio BC, Ferreira PM, Santos AA, França AA, Rocha MS, Diaz-Muñoz G, Diaz MA. New antineoplastic agent based on a dibenzoylmethane derivative: Cytotoxic effect and direct interaction with DNA. Biophys Chem 2018; 239:1-6. [DOI: 10.1016/j.bpc.2018.04.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 04/28/2018] [Accepted: 04/28/2018] [Indexed: 11/26/2022]
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4
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Kim JH, Kim CY, Kang B, Hong J, Choi HS. Dibenzoylmethane Suppresses Lipid Accumulation and Reactive Oxygen Species Production through Regulation of Nuclear Factor (Erythroid-Derived 2)-Like 2 and Insulin Signaling in Adipocytes. Biol Pharm Bull 2018; 41:680-689. [DOI: 10.1248/bpb.b17-00837] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Joo Hyoun Kim
- Department of Food Sciencfe and Technology, College of Natural Science, Seoul Women’s University
| | | | - Bobin Kang
- Department of Public Health Sciences, Korea University
| | - Jungil Hong
- Department of Food Sciencfe and Technology, College of Natural Science, Seoul Women’s University
| | - Hyeon-Son Choi
- Department of Food Sciencfe and Technology, College of Natural Science, Seoul Women’s University
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5
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Adhya D, Annuario E, Lancaster MA, Price J, Baron‐Cohen S, Srivastava DP. Understanding the role of steroids in typical and atypical brain development: Advantages of using a "brain in a dish" approach. J Neuroendocrinol 2018; 30:e12547. [PMID: 29024164 PMCID: PMC5838783 DOI: 10.1111/jne.12547] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 09/14/2017] [Accepted: 10/03/2017] [Indexed: 01/02/2023]
Abstract
Steroids have an important role in growth, development, sexual differentiation and reproduction. All four classes of steroids, androgens, oestrogens, progestogens and glucocorticoids, have varying effects on the brain. Androgens and oestrogens are involved in the sexual differentiation of the brain, and also influence cognition. Progestogens such as progesterone and its metabolites have been shown to be involved in neuroprotection, although their protective effects are timing-dependent. Glucocorticoids are linked with stress and memory performance, also in a dose- and time-dependent manner. Importantly, dysfunction in steroid function has been implicated in the pathogenesis of disease. Moreover, regulating steroid-signalling has been suggested as potential therapeutic avenue for the treatment of a number of neurodevelopmental, psychiatric and neurodegenerative disorders. Therefore, clarifying the role of steroids in typical and atypical brain function is essential for understanding typical brain functions, as well as determining their potential use for pharmacological intervention in the atypical brain. However, the majority of studies have thus far have been conducted using animal models, with limited work using native human tissue or cells. Here, we review the effect of steroids in the typical and atypical brain, focusing on the cellular, molecular functions of these molecules determined from animal models, and the therapeutic potential as highlighted by human studies. We further discuss the promise of human-induced pluripotent stem cells, including advantages of using three-dimensional neuronal cultures (organoids) in high-throughput screens, in accelerating our understanding of the role of steroids in the typical brain, and also with respect to their therapeutic value in the understanding and treatment of the atypical brain.
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Affiliation(s)
- D. Adhya
- Department of PsychiatryAutism Research CentreUniversity of CambridgeCambridgeUK
- Department of Basic and Clinical NeuroscienceMaurice Wohl Clinical Neuroscience InstituteInstitute of Psychiatry, Psychology and NeuroscienceKing's College LondonLondonUK
- MRC Laboratory of Molecular BiologyCambridgeUK
| | - E. Annuario
- Department of Basic and Clinical NeuroscienceMaurice Wohl Clinical Neuroscience InstituteInstitute of Psychiatry, Psychology and NeuroscienceKing's College LondonLondonUK
| | | | - J. Price
- Department of Basic and Clinical NeuroscienceMaurice Wohl Clinical Neuroscience InstituteInstitute of Psychiatry, Psychology and NeuroscienceKing's College LondonLondonUK
- MRC Centre for Neurodevelopmental DisordersKing's College LondonLondonUK
- National Institute for Biological Standards and ControlSouth MimmsUK
| | - S. Baron‐Cohen
- Department of PsychiatryAutism Research CentreUniversity of CambridgeCambridgeUK
| | - D. P. Srivastava
- Department of Basic and Clinical NeuroscienceMaurice Wohl Clinical Neuroscience InstituteInstitute of Psychiatry, Psychology and NeuroscienceKing's College LondonLondonUK
- MRC Centre for Neurodevelopmental DisordersKing's College LondonLondonUK
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6
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Huang H, He Y, Zhang L, Xiang H, Li D, Liu W, Xu XT, Goodin S, Zhang K, Zheng X. Phenethyl isothiocyanate in combination with dibenzoylmethane inhibits the androgen-independent growth of prostate cancer cells. Food Funct 2018; 9:2398-2408. [DOI: 10.1039/c7fo01983a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This study investigates the inhibitory effect of PEITC and DBM in combination on the progression of androgen-dependent VCaP prostate tumors to androgen independence.
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7
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Takano K, Ishida N, Kawabe K, Moriyama M, Hibino S, Choshi T, Hori O, Nakamura Y. A dibenzoylmethane derivative inhibits lipopolysaccharide-induced NO production in mouse microglial cell line BV-2. Neurochem Int 2017; 119:126-131. [PMID: 28390951 DOI: 10.1016/j.neuint.2017.04.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 03/31/2017] [Accepted: 04/03/2017] [Indexed: 12/12/2022]
Abstract
Microglial activation has been suggested to play important roles in various neurodegenerative diseases by phagocytosis and producing various factors such as nitric oxide (NO), proinflammatory cytokines. Excessive production of NO, as a consequence of increased inducible nitric oxide synthase (iNOS) in microglia, contributes to the neurodegeneration. During a search for compounds that regulate endoplasmic reticulum (ER) stress, a dibenzoylmethane derivative, 2,2'-dimethoxydibenzoylmethane (DBM 14-26) was identified as a novel neuroprotective agent (Takano et al., Am. J. Physiol. Cell Physiol. 293, C1884-1894, 2007). We previously reported in cultured astrocytes that DBM 14-26 protected hydrogen peroxide-induced cell death and inhibited lipopolysaccharide (LPS)-induced NO production (Takano et al., J. Neurosci. Res. 89, 955-965, 2011). In the present study, we assessed the effects of DBM 14-26 on microglia using the mouse cell line BV-2 and found that DBM 14-26 inhibited LPS-induced iNOS expression and NO production also in microglia. DBM 14-26 also suppressed LPS-induced IL-1β expression. Conditioned medium of BV-2 cells stimulated by LPS significantly decreased cell viability of neuron (human neuroblastoma SH-SY5Y cells) compared with the absence of LPS. Conditioned medium of BV-2 cells stimulated by LPS in the presence of DBM 14-26 did not significantly decreased cell viability of neuron. These results indicate that microglial activation by LPS causes neuronal cell death and DBM 14-26 protect neuron through the inhibition of microglial activation. Functional regulation of microglia by DBM 14-26 could be a therapeutic candidate for the treatment of neurodegenerative diseases.
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Affiliation(s)
- Katsura Takano
- Laboratory of Integrative Physiology in Veterinary Sciences, Osaka Prefecture University, Izumisano, Osaka, Japan.
| | - Natsumi Ishida
- Laboratory of Integrative Physiology in Veterinary Sciences, Osaka Prefecture University, Izumisano, Osaka, Japan
| | - Kenji Kawabe
- Laboratory of Integrative Physiology in Veterinary Sciences, Osaka Prefecture University, Izumisano, Osaka, Japan
| | - Mitsuaki Moriyama
- Laboratory of Integrative Physiology in Veterinary Sciences, Osaka Prefecture University, Izumisano, Osaka, Japan
| | - Satoshi Hibino
- Fukuyama University, Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama, Hiroshima, Japan
| | - Tominari Choshi
- Fukuyama University, Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama, Hiroshima, Japan
| | - Osamu Hori
- Department of Neuroanatomy, Kanazawa University Graduate School of Medical Science, Kanazawa, Ishikawa, Japan
| | - Yoichi Nakamura
- Laboratory of Integrative Physiology in Veterinary Sciences, Osaka Prefecture University, Izumisano, Osaka, Japan
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8
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Latha V, Balakrishnan C, Neelakantan M. Synthesis, crystal structure and DFT studies of a dual fluorescent ketamine: Structural changes in the ground and excited states. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.03.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Tanida T, Matsuda KI, Yamada S, Hashimoto T, Kawata M. Estrogen-related Receptor β Reduces the Subnuclear Mobility of Estrogen Receptor α and Suppresses Estrogen-dependent Cellular Function. J Biol Chem 2015; 290:12332-45. [PMID: 25805499 DOI: 10.1074/jbc.m114.619098] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Indexed: 11/06/2022] Open
Abstract
Estrogen-related receptor (ERR) is a member of the nuclear receptor superfamily that has strong homology with estrogen receptor (ER) α. ERR has three subtypes (α, β, and γ) expressed in estrogen-sensitive organs, including ovary, breast, and brain. No endogenous ligands of ERRs have been identified, but these receptors share a common DNA element with ERα and control estrogen-mediated gene transcription. Recent evidence suggests a role of ERRs in estrogen-related pathophysiology, but the detailed mechanisms of ERR functions in estrogen-related tissues are unclear. Using live-cell imaging with fluorescent protein labeling, we found that only ERRβ among the ERRs exhibits a punctate intranuclear pattern overlapping with ERα following 17β-estradiol (E2)-stimulation. Fluorescence recovery after photobleaching showed significant reduction of the mobility of ligand-activated ERα with co-expression of ERRβ. Fluorescence resonance energy transfer revealed that ERRβ directly interacts with ERα. The N-terminal domain of ERRβ was identified as the region that interacts with ERα. We also found a correlation between punctate cluster formation of ERα and interaction between the receptors. Expression of ERRβ significantly repressed ERα-mediated transactivity, whereas that of other ERR subtypes had no effect on the transactivity of ERα. Consistent with this finding, E2-stimulated proliferation of MCF-7 breast carcinoma cells and bcl-2 expression was significantly inhibited by expression of ERRβ. These results provide strong evidence for a suppressive effect of ERRβ on estrogen signaling through reduction of the intranuclear mobility of ERα. The findings further suggest a unique inhibitory role for ERRβ in estrogen-dependent cellular function such as cancer cell proliferation.
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Affiliation(s)
- Takashi Tanida
- From the Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Ken Ichi Matsuda
- From the Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Shunji Yamada
- From the Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Takashi Hashimoto
- From the Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Mitsuhiro Kawata
- From the Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
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10
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Kim N, Kim HM, Lee ES, Lee JO, Lee HJ, Lee SK, Moon JW, Kim JH, Kim JK, Kim SJ, Park SH, Chung CH, Kim HS. Dibenzoylmethane exerts metabolic activity through regulation of AMP-activated protein kinase (AMPK)-mediated glucose uptake and adipogenesis pathways. PLoS One 2015; 10:e0120104. [PMID: 25756788 PMCID: PMC4355612 DOI: 10.1371/journal.pone.0120104] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 01/25/2015] [Indexed: 12/27/2022] Open
Abstract
Dibenzoylmethane (DBM) has been shown to exert a variety of beneficial effects on human health. However, the mechanism of action is poorly understood. In this study, DBM increased phosphorylation of AMP-activated protein kinase (AMPK) and stimulated glucose uptake in a skeletal muscle cell line. Both knockdown of AMPK with siRNA and inhibition with AMPK inhibitor blocked DBM-induced glucose uptake. DBM increased the concentration of intracellular calcium and glucose uptake due to DBM was abolished by STO-609 (a calcium/calmodulin-dependent protein kinase inhibitor). DBM stimulated phosphorylation of p38 mitogen-activated protein kinase (p38 MAPK), which was blocked by pretreatment with compound C, an AMPK inhibitor. The expression of glucose transporter type 4 (GLUT4) was increased by DBM. The translocation of GLUT4 to the plasma membrane was also increased by DBM in AMPK dependently. In addition, DBM suppressed weight gain and prevented fat accumulation in the liver and abdomen in mice fed a high-fat diet. In pre-adipocyte cells, DBM decreased the activity of acetyl-CoA carboxylase (ACC), the rate-limiting enzyme of fatty acid synthesis. Expression of the adipogenic gene, fatty acid synthase (FAS), was suppressed by DBM in an AMPK-dependent manner. These results showed that the beneficial metabolic effects of DBM might be due to regulation of glucose uptake via AMPK in skeletal muscle and inhibition of adipogenesis in pre-adipocytes.
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Affiliation(s)
- Nami Kim
- Department of Anatomy, Korea University College of Medicine, Seoul 136-701, Korea
| | - Hong Min Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju 220-701, South Korea
| | - Eun Soo Lee
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju 220-701, South Korea
| | - Jung Ok Lee
- Department of Anatomy, Korea University College of Medicine, Seoul 136-701, Korea
| | - Hye Jeong Lee
- Department of Anatomy, Korea University College of Medicine, Seoul 136-701, Korea
| | - Soo Kyung Lee
- Department of Anatomy, Korea University College of Medicine, Seoul 136-701, Korea
| | - Ji Wook Moon
- Department of Anatomy, Korea University College of Medicine, Seoul 136-701, Korea
| | - Ji Hae Kim
- Department of Anatomy, Korea University College of Medicine, Seoul 136-701, Korea
| | - Joong Kwan Kim
- Department of Anatomy, Korea University College of Medicine, Seoul 136-701, Korea
| | - Su Jin Kim
- Department of Anatomy, Korea University College of Medicine, Seoul 136-701, Korea
| | - Sun Hwa Park
- Department of Anatomy, Korea University College of Medicine, Seoul 136-701, Korea
| | - Choon Hee Chung
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju 220-701, South Korea
| | - Hyeon Soo Kim
- Department of Anatomy, Korea University College of Medicine, Seoul 136-701, Korea
- * E-mail:
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11
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LIAO YAFAN, TZENG YEWMIN, HUNG HUICHIH, LIU GUANGYAW. Dibenzoylmethane, hydroxydibenzoylmethane and hydroxymethyldibenzoylmethane inhibit phorbol-12-myristate 13-acetate-induced breast carcinoma cell invasion. Mol Med Rep 2015; 11:4597-604. [DOI: 10.3892/mmr.2015.3304] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 12/02/2014] [Indexed: 11/06/2022] Open
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12
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Mancia MD, Reid ME, DuBose ES, Campbell JA, Jackson KM. Qualitative Identification of Dibenzoylmethane in Licorice Root ( Glycyrrhiza glabra) using Gas Chromatography-Triple Quadrupole Mass Spectrometry. Nat Prod Commun 2014. [DOI: 10.1177/1934578x1400900127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Licorice root ( Glycyrrhiza glabra), an herbal Chinese medicine, has shown medicinal uses in therapeutics and cancer prevention. Dibenzoylmethane (DBM; 1, 3-diphenyl-1, 3-propadinedione), a small β-diketone, has been reported to be a minor constituent of licorice and a known deregulator of the human prostate cancer cell cycle. Characterization of the phytochemical profiles of licorice root forms including commercially available DBM will advance our search in identifying novel reagents for prostate cancer therapeutics. Gas chromatography- triple quadrupole-mass spectrometric analysis was used for detecting DBM in licorice root extracts. DBM and all licorice forms exhibited a component with a retention time of 14.5 minutes. The major fragment ions detected were at m/z 77, 105, 147, 223 and 224 at the identified retention time by selected reaction monitoring/SRM. These data confirm the presence of DBM from its natural source ( G. glabra), and the GC-MS/SRM method helps in the identification of this minor component in a complex biological matrix.
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Affiliation(s)
- Marisela D. Mancia
- Department of Chemistry, Spelman College, 350 Spelman Lane S.W., Atlanta, GA 30314, USA
| | - Michelle E. Reid
- Department of Chemistry, Spelman College, 350 Spelman Lane S.W., Atlanta, GA 30314, USA
| | - Evan S. DuBose
- Department of Chemistry, Spelman College, 350 Spelman Lane S.W., Atlanta, GA 30314, USA
| | - James A. Campbell
- Chemical and Biological Signature Sciences, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA 99352, USA
| | - Kimberly M. Jackson
- Department of Chemistry, Spelman College, 350 Spelman Lane S.W., Atlanta, GA 30314, USA
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13
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Hegedűs C, Lakatos P, Kiss-Szikszai A, Patonay T, Gergely S, Gregus A, Bai P, Haskó G, Szabó É, Virág L. Cytoprotective dibenzoylmethane derivatives protect cells from oxidative stress-induced necrotic cell death. Pharmacol Res 2013; 72:25-34. [PMID: 23523665 DOI: 10.1016/j.phrs.2013.03.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Revised: 03/13/2013] [Accepted: 03/14/2013] [Indexed: 12/20/2022]
Abstract
Screening of a small in-house library of 1863 compounds identified 29 compounds that protected Jurkat cells from hydrogen peroxide-induced cytotoxicity. From the cytoprotective compounds eleven proved to possess antioxidant activity (ABTS radical scavenger effect) and two were found to inhibit poly(ADP-ribosyl)ation (PARylation), a cytotoxic pathway operating in severely injured cells. Four cytoprotective dibenzoylmethane (DBM) derivatives were investigated in more detail as they did not scavenge hydrogen peroxide nor did they inhibit PARylation. These compounds protected cells from necrotic cell death while caspase activation, a parameter of apoptotic cell death was not affected. Hydrogen peroxide activated extracellular signal regulated kinase (ERK1/2) and p38 MAP kinases but not c-Jun N-terminal kinase (JNK). The cytoprotective DBMs suppressed the activation of Erk1/2 but not that of p38. Cytoprotection was confirmed in another cell type (A549 lung epithelial cells), indicating that the cytoprotective effect is not cell type specific. In conclusion we identified DBM analogs as a novel class of cytoprotective compounds inhibiting ERK1/2 kinase and protecting from necrotic cell death by a mechanism independent of poly(ADP-ribose) polymerase inhibition.
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Affiliation(s)
- Csaba Hegedűs
- Department of Medical Chemistry, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary
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14
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Anand P, Sung B, Kunnumakkara AB, Rajasekharan KN, Aggarwal BB. Suppression of pro-inflammatory and proliferative pathways by diferuloylmethane (curcumin) and its analogues dibenzoylmethane, dibenzoylpropane, and dibenzylideneacetone: role of Michael acceptors and Michael donors. Biochem Pharmacol 2011; 82:1901-9. [PMID: 21924245 DOI: 10.1016/j.bcp.2011.09.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Revised: 09/01/2011] [Accepted: 09/02/2011] [Indexed: 11/30/2022]
Abstract
Curcumin, a diferuloylmethane, has been shown to exhibit anti-inflammatory and anti-proliferative activities. Whereas curcumin has both a Michael acceptor and a Michael donor units, its analogues dibenzoylmethane (DBM, a component of licorice) and dibenzoylpropane (DBP) have a Michael donor but not a Michael acceptor unit, and the analogue dibenzylideneacetone (DBA) has a Michael acceptor unit. In the current report, we investigated the potency of DBM, DBP, and DBA in relation to curcumin for their ability to suppress TNF-induced NF-κB activation, NF-κB-regulated gene products, and cell proliferation. We found that all four agents were active in suppressing NF-κB activation; curcumin was most active and DBM was least active. When examined for its ability to inhibit the direct DNA binding activity of p65, a subunit of NF-κB, only DBP inhibited the binding. For inhibition of TNF-induced IKK activation, DBA was most active. For suppression of TNF-induced expression of NF-κB-regulated gene products such as COX-2 (inflammation marker), cyclin D1 (proliferation marker), and VEGF (angiogenesis marker), DBA and curcumin were more active than DBM. Similarly for suppression of proliferation of leukemia (KBM-5), T cell leukemia (Jurkat), prostate (DU145), and breast (MDA-MB-231) cancer cells, curcumin and DBA were most active and DBP was least active. Overall, our results indicate that although curcumin and its analogues exhibit activities to suppress inflammatory pathways and cellular proliferation, a lack of Michael acceptor units in DBM and DBP can reduce their activities.
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Affiliation(s)
- Preetha Anand
- Cytokine Research Laboratory, Department of Experimental Therapeutics, Unit 1950, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States
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15
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Takano K, Sugita K, Moriyama M, Hashida K, Hibino S, Choshi T, Murakami R, Yamada M, Suzuki H, Hori O, Nakamura Y. A dibenzoylmethane derivative protects against hydrogen peroxide-induced cell death and inhibits lipopolysaccharide-induced nitric oxide production in cultured rat astrocytes. J Neurosci Res 2011; 89:955-65. [PMID: 21425318 DOI: 10.1002/jnr.22617] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Revised: 12/28/2010] [Accepted: 01/11/2011] [Indexed: 11/06/2022]
Affiliation(s)
- K Takano
- Laboratory of Integrative Physiology in Veterinary Sciences, Osaka Prefecture University, Izumisano, Osaka, Japan.
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16
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Lin W, Hong JL, Shen G, Wu RT, Wang Y, Huang MT, Newmark HL, Huang Q, Khor TO, Heimbach T, Kong AN. Pharmacokinetics of dietary cancer chemopreventive compound dibenzoylmethane in rats and the impact of nanoemulsion and genetic knockout of Nrf2 on its disposition. Biopharm Drug Dispos 2010; 32:65-75. [PMID: 21341276 DOI: 10.1002/bdd.734] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2010] [Revised: 08/19/2010] [Accepted: 10/26/2010] [Indexed: 12/19/2022]
Abstract
The pharmacokinetic disposition of a dietary cancer chemopreventive compound dibenzoylmethane (DBM) was studied in male Sprague-Dawley rats after intravenous (i.v.) and oral (p.o.) administrations. Following a single i.v. bolus dose, the mean plasma clearance (CL) of DBM was low compared with the hepatic blood flow. DBM displayed a high volume of distribution (Vss). The elimination terminal t1/2 was long. The mean CL, Vss and AUC0-∞/dose were similar between the i.v. 10 and 10 mg/kg doses. After single oral doses (10, 50 and 250 mg/kg), the absolute oral bioavailability (F*) of DBM was 7.4%-13.6%. The increase in AUC was not proportional to the oral doses, suggesting non-linearity. In silico prediction of oral absorption also demonstrated low DBM absorption in vivo. An oil-in-water nanoemulsion containing DBM was formulated to potentially overcome the low F* due to poor water solubility of DBM, with enhanced oral absorption. Finally, to examine the role of Nrf2 on the pharmacokinetics of DBM, since DBM activates the Nrf2-dependent detoxification pathways, Nrf2 wild-type (+/+) mice and Nrf2 knockout (-/-) mice were utilized. There was an increased systemic plasma exposure of DBM in Nrf2 (-/-) mice, suggesting that the Nrf2 genotype could also play a role in the pharmacokinetic disposition of DBM. Taken together, the results show that DBM has low oral bioavailability which could be due in part to poor water solubility and this could be overcome by a nanotechnology-based drug delivery system and furthermore the Nrf2 genotype could also play a role in the pharmacokinetics of DBM.
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Affiliation(s)
- Wen Lin
- Department of Pharmaceutics, Ernest-Mario School of Pharmacy, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ 08854, USA
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17
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Lin CC, Liu Y, Ho CT, Huang MT. Inhibitory effects of 1,3-bis-(2-substituted-phenyl)-propane-1,3-dione, β-diketone structural analogues of curcumin, on chemical-induced tumor promotion and inflammation in mouse skin. Food Funct 2010; 2:78-83. [PMID: 21773589 DOI: 10.1039/c0fo00098a] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dibenzoylmethane (DBM), a β-diketone structural analogue of curcumin, has been reported to exhibit anti-tumorigenic and chemopreventive activities. Due to the structural resemblance of DBM to the anti-inflammatory curcumin and an aspirin-like skeleton of DBM derivatives, we tested the anti-inflammatory effects of DBM and its derivatives, 1,3-bis-(2-substituted-phenyl)-propane-1,3-dione, on 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced tumor promotion as well as TPA- and arachidonic acid-induced mouse ear edema in skin of CD-1 mice. Topical application of 10 μmol DBM together with TPA on the back of mice previously treated with 7,12-dimethylbenz[α]anthracene (DMBA) inhibited TPA-induced skin tumor promotion significantly. In addition, 1,3-bis-(2-acetoxy phenyl)-propane-1,3-dione was a superior anti-inflammatory agent to aspirin (80% of inhibition), on TPA-induced mouse ear edema and reduced the production of prostaglandin E2 (PGE(2)), comparable to aspirin. Taken together, 1,3-bis-(2-acetoxyphenyl-propane-1,3-dione merits a valuable anti-inflammatory agent substituting aspirin in therapeutic treatment as well prevention of cancer.
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Affiliation(s)
- Chuan-Chuan Lin
- Department of Food Science, China University of Science and Technology, 245 Yen-Chiu-Yuan Rd., Sec. 3, Nankang, Taipei 115, Taiwan.
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Zhang G, Evans RE, Campbell KA, Fraser CL. Role of Boron in the Polymer Chemistry and Photophysical Properties of Difluoroboron−Dibenzoylmethane Polylactide. Macromolecules 2009. [DOI: 10.1021/ma9019043] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guoqing Zhang
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904
| | - Ruffin E. Evans
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904
| | - Kirsti A. Campbell
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904
| | - Cassandra L. Fraser
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904
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Khor TO, Yu S, Barve A, Hao X, Hong JL, Lin W, Foster B, Huang MT, Newmark HL, Kong AN. Dietary feeding of dibenzoylmethane inhibits prostate cancer in transgenic adenocarcinoma of the mouse prostate model. Cancer Res 2009; 69:7096-102. [PMID: 19706764 DOI: 10.1158/0008-5472.can-09-0597] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Dibenzoylmethane (DBM), a minor beta-diketone constituent of licorice, has been shown to exhibit antineoplastic effects in prostate cancer cell lines by induction of cell cycle arrest and regulation of androgen receptor expression. In the present study, we investigated the in vitro and in vivo efficacy of DBM using TRAMP-C1 cell lines and TRAMP mice. DBM was found to arrest TRAMP-C1 cells at G(2)-M phase of cell cycle and suppressed phosphorylated retinoblastoma, cyclin D1, and cyclin A. Importantly, DBM was found to be equally effective in suppression of prostate tumor progression in TRAMP mice. At 8 or 12 weeks of age, mice were fed control or 1% DBM-supplemented diets until 24 weeks of age. Our results show that DBM-fed groups had a lower incidence of palpable tumor and high-grade prostatic intraepithelial neoplasia. Subsequent mechanistic studies show that the expression of phosphorylated retinoblastoma, c-myc, cyclin D1, cyclin A, phosphorylated Akt, phosphorylated PDK-1, and phosphorylated S6 was significantly reduced by DBM. Our findings suggest that DBM blocks the growth and progression of prostate cancer in TRAMP mice via modulation of tumor cell cycle regulation and therefore merits its consideration for future clinical intervention of human prostate cancer.
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Affiliation(s)
- Tin Oo Khor
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
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Abstract
The hormonal control of cell death is currently the best-established mechanism for creating sex differences in cell number in the brain and spinal cord. For example, males have more cells than do females in the principal nucleus of the bed nucleus of the stria terminalis (BNSTp) and spinal nucleus of the bulbocavernosus (SNB), whereas females have a cell number advantage in the anteroventral periventricular nucleus (AVPV). In each case, the difference in cell number in adulthood correlates with a sex difference in the number of dying cells at some point in development. Mice with over- or under-expression of cell death genes have been used to test more directly the contribution of cell death to neural sex differences, to identify molecular mechanisms involved, and to determine the behavioural consequences of suppressing developmental cell death. Bax is a pro-death gene of the Bcl-2 family that is singularly important for apoptosis in neural development. In mice lacking bax, the number of cells in the BNSTp, SNB and AVPV are significantly increased, and sex differences in total cell number in each of these regions are eliminated. Cells rescued by bax gene deletion in the BNSTp express markers of differentiated neurones and the androgen receptor. On the other hand, sex differences in other phenotypically identified populations, such as vasopressin-expressing neurones in the BNSTp or dopaminergic neurones in AVPV, are not affected by either bax deletion or bcl-2 over-expression. Possible mechanisms by which testosterone may regulate cell death in the nervous system are discussed, as are the behavioural effects of eliminating sex differences in neuronal cell number.
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Affiliation(s)
- N G Forger
- Department of Psychology and Center for Neuroendocrine Studies, University of Massachusetts, Amherst, MA 01003, USA.
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High-throughput cell-based screening reveals a role for ZNF131 as a repressor of ERalpha signaling. BMC Genomics 2008; 9:476. [PMID: 18847501 PMCID: PMC2577665 DOI: 10.1186/1471-2164-9-476] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2008] [Accepted: 10/11/2008] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Estrogen receptor alpha (ERalpha) is a transcription factor whose activity is affected by multiple regulatory cofactors. In an effort to identify the human genes involved in the regulation of ERalpha, we constructed a high-throughput, cell-based, functional screening platform by linking a response element (ERE) with a reporter gene. This allowed the cellular activity of ERalpha, in cells cotransfected with the candidate gene, to be quantified in the presence or absence of its cognate ligand E2. RESULTS From a library of 570 human cDNA clones, we identified zinc finger protein 131 (ZNF131) as a repressor of ERalpha mediated transactivation. ZNF131 is a typical member of the BTB/POZ family of transcription factors, and shows both ubiquitous expression and a high degree of sequence conservation. The luciferase reporter gene assay revealed that ZNF131 inhibits ligand-dependent transactivation by ERalpha in a dose-dependent manner. Electrophoretic mobility shift assay clearly demonstrated that the interaction between ZNF131 and ERalpha interrupts or prevents ERalpha binding to the estrogen response element (ERE). In addition, ZNF131 was able to suppress the expression of pS2, an ERalpha target gene. CONCLUSION We suggest that the functional screening platform we constructed can be applied for high-throughput genomic screening candidate ERalpha-related genes. This in turn may provide new insights into the underlying molecular mechanisms of ERalpha regulation in mammalian cells.
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Thomadaki H, Scorilas A. Molecular profile of the BCL2 family of the apoptosis related genes in breast cancer cells after treatment with cytotoxic/cytostatic drugs. Connect Tissue Res 2008; 49:261-4. [PMID: 18661356 DOI: 10.1080/03008200802147829] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BCL2 (bcl-2) gene family members are important regulators of apoptosis. Increasing evidence supports their modulated expression in breast cancer cells and in many cases their relation to chemotherapy response, outcome, and overall prognosis, as well as their value as important potent therapeutic targets. Investigation and increased understanding of their transcriptional regulation and their specific roles in cancer progression and therapy response will be useful for focusing research on the development of novel therapies targeted against this gene family members' expression status. In the present review, we describe current knowledge of the molecular profile of the classical and novel members of the BCL2 family of genes as a response of breast cancer cells to cytotoxic/cytostatic drugs.
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Affiliation(s)
- Hellinida Thomadaki
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Athens, Panepistimiopolis, Athens, Greece
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Takano K, Kitao Y, Tabata Y, Miura H, Sato K, Takuma K, Yamada K, Hibino S, Choshi T, Iinuma M, Suzuki H, Murakami R, Yamada M, Ogawa S, Hori O. A dibenzoylmethane derivative protects dopaminergic neurons against both oxidative stress and endoplasmic reticulum stress. Am J Physiol Cell Physiol 2007; 293:C1884-94. [PMID: 17913843 DOI: 10.1152/ajpcell.00305.2007] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The enhancement of intracellular stresses such as oxidative stress and endoplasmic reticulum (ER) stress has been implicated in several neurodegenerative disorders including Parkinson's disease (PD). During a search for compounds that regulate ER stress, a dibenzoylmethane (DBM) derivative 14-26 (2,2′-dimethoxydibenzoylmethane) was identified as a novel neuroprotective agent. Analysis in SH-SY5Y cells and in PC12 cells revealed that the regulation of ER stress by 14-26 was associated with its anti-oxidative property. 14-26 prevented the production of reactive oxygen species (ROS) when the cells were exposed to oxidants such as hydrogen peroxide and 6-hydroxydopamine (6-OHDA) or an ER stressor brefeldin A (BFA). 14-26 also prevented ROS-induced damage in both the ER and the mitochondria, including the protein carbonylation in the microsome and the reduction of the mitochondrial membrane potential. Further examination disclosed the presence of the iron-chelating activity in 14-26. In vivo, 14-26 suppressed both oxidative stress and ER stress and prevented neuronal death in the substantia nigra pars compacta (SNpc) after injection of 6-OHDA in mice. These results suggest that 14-26 is an antioxidant that protects dopaminergic neurons against both oxidative stress and ER stress and could be a therapeutic candidate for the treatment of PD.
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Affiliation(s)
- Katsura Takano
- Department of Neuroanatomy, Kanazawa University Graduate School of Medical Science, Kanazawa City, Ishikawa, Japan
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