Abstract
4-O-methylhonokiol (MH) is known to inhibit inflammation by partially understood mechanisms. Here, the anti-inflammatory mechanisms of MH were examined using enzymatic, cellular, and animal assays. In enzymatic assays, MH inhibited COX-2 activity with an IC50 of 0.062 μM, and also COX-1 with an IC50 of 2.4 μM. In cellular assays, MH was immunotoxic above 10 μM. At non-toxic concentrations (below 3 μM), MH strongly inhibited COX-2-mediated prostaglandin production with an IC50 of 0.1 μM, whereas did not or slightly affect other functions of B cells, T cells, dendritic cells, and macrophages. In an animal model, MH inhibited the increase in footpad thickness and popliteal lymph node weight in zymosan-injected mice. When analyzed the draining pLNs of zymosan-injected mice on day 5, MH inhibited the overall inflammatory responses. However, MH inhibited cyclooxygenase (COX)-2-mediated prostaglandin production without affecting tumor necrosis factor-α production in inflamed tissues within 6 h after zymosan injection. In summary, our data suggest that COX-2 may be a direct anti-inflammatory target of MH in vitro and in vivo.
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Ashton, J.C., and M. Glass. 2007. The cannabinoid CB2 receptor as a target for inflammation-dependent neurodegeneration. Current Neuropharmacology 5: 73–80.
Bombardier, C., L. Laine, A. Reicin, D. Shapiro, R. Burgos-Vargas, B. Davis, R. Day, M.B. Ferraz, C.J. Hawkey, M.C. Hochberg, T.K. Kvien, T.J. Schnitzer, and V.S. Group. 2000. Comparison of upper gastrointestinal toxicity of rofecoxib and naproxen in patients with rheumatoid arthritis. VIGOR Study Group. New England Journal of Medicine 343: 1520–1528. 1522 p following 1528.
Bresalier, R.S., R.S. Sandler, H. Quan, J.A. Bolognese, B. Oxenius, K. Horgan, C. Lines, R. Riddell, D. Morton, A. Lanas, M.A. Konstam, J.A. Baron, and Adenomatous Polyp Prevention on Vioxx Trial, I. 2005. Cardiovascular events associated with rofecoxib in a colorectal adenoma chemoprevention trial. New England Journal of Medicine 352: 1092–1102.
Chao, L.K., P.C. Liao, C.L. Ho, E.I. Wang, C.C. Chuang, H.W. Chiu, L.B. Hung, and K.F. Hua. 2010. Anti-inflammatory bioactivities of honokiol through inhibition of protein kinase C, mitogen-activated protein kinase, and the NF-kappaB pathway to reduce LPS-induced TNFalpha and NO expression. Journal of Agriculture and Food Chemistry 58: 3472–3478.
Choi, I.S., Y.J. Lee, D.Y. Choi, Y.K. Lee, Y.H. Lee, K.H. Kim, Y.H. Kim, Y.H. Jeon, E.H. Kim, S.B. Han, J.K. Jung, Y.P. Yun, K.W. Oh, D.Y. Hwang, and J.T. Hong. 2011. 4-O-methylhonokiol attenuated memory impairment through modulation of oxidative damage of enzymes involving amyloid-beta generation and accumulation in a mouse model of Alzheimer’s disease. Journal of Alzheimer’s Disease 27: 127–141.
Choi, M.S., S.H. Lee, H.S. Cho, Y. Kim, Y.P. Yun, H.Y. Jung, J.K. Jung, B.C. Lee, H.B. Pyo, and J.T. Hong. 2007. Inhibitory effect of obovatol on nitric oxide production and activation of NF-kappaB/MAP kinases in lipopolysaccharide-treated RAW 264.7cells. European Journal of Pharmacology 556: 181–189.
Coxib, Traditional, N.T.C, N. Bhala, J. Emberson, A. Merhi, S. Abramson, N. Arber, J.A. Baron, C. Bombardier, C. Cannon, M.E. Farkouh, G.A. Fitzgerald, P. Goss, H. Halls, E. Hawk, C. Hawkey, C. Hennekens, M. Hochberg, L.E. Holland, P.M. Kearney, L. Laine, A. Lanas, P. Lance, A. Laupacis, J. Oates, C. Patrono, T.J. Schnitzer, S. Solomon, P. Tugwell, K. Wilson, J. Wittes, and C. Baigent. 2013. Vascular and upper gastrointestinal effects of non-steroidal anti-inflammatory drugs: meta-analyses of individual participant data from randomised trials. Lancet 382: 769–779.
Fitzgerald, G.A., and C. Patrono. 2001. The coxibs, selective inhibitors of cyclooxygenase-2. New England Journal of Medicine 345: 433–442.
Fu, Y., B. Liu, N. Zhang, Z. Liu, D. Liang, F. Li, Y. Cao, X. Feng, X. Zhang, and Z. Yang. 2013. Magnolol inhibits lipopolysaccharide-induced inflammatory response by interfering with TLR4 mediated NF-kappaB and MAPKs signaling pathways. Journal of Ethnopharmacology 145: 193–199.
Fuchs, A., V. Rempel, and C.E. Muller. 2013. The natural product magnolol as a lead structure for the development of potent cannabinoid receptor agonists. PLoS One 8: e77739.
Han, H., J.K. Jung, S.B. Han, S.Y. Nam, K.W. Oh, and J.T. Hong. 2011. Anxiolytic-like effects of 4-O-methylhonokiol isolated from Magnolia officinalis through enhancement of GABAergic transmission and chloride influx. Journal of Medicinal Food 14: 724–731.
Han, S.B., C.W. Lee, Y.D. Yoon, J.H. Lee, J.S. Kang, K.H. Lee, W.K. Yoon, K. Lee, S.K. Park, and H.M. Kim. 2005. Prevention of arthritic inflammation using an oriental herbal combination BDX-1 isolated from Achyranthes bidentata and Atractylodes japonica. Archives of Pharmacal Research 28: 902–908.
Ibrahim, T., J.M. Cunha, K. Madi, L.M. Da Fonseca, S.S. Costa, and V.L. Goncalves Koatz. 2002. Immunomodulatory and anti-inflammatory effects of Kalanchoe brasiliensis. International Immunopharmacology 2: 875–883.
Inotai, A., B. Hanko, and A. Meszaros. 2010. Trends in the non-steroidal anti-inflammatory drug market in six Central-Eastern European countries based on retail information. Pharmacoepidemiology and Drug Safety 19: 183–190.
Kim, H.S., J.Y. Kim, H.S. Ryu, H.G. Park, Y.O. Kim, J.S. Kang, H.M. Kim, J.T. Hong, Y. Kim, and S.B. Han. 2010. Induction of dendritic cell maturation by beta-glucan isolated from Sparassis crispa. International Immunopharmacology 10: 1284–1294.
Kim, H.S., B.R. Shin, H.K. Lee, Y.S. Park, Q. Liu, S.Y. Kim, M.K. Lee, J.T. Hong, Y. Kim, and S.B. Han. 2013a. Dendritic cell activation by polysaccharide isolated from Angelica dahurica. Food and Chemical Toxicology 55: 241–247.
Kim, J.Y., H.S. Kim, Y.J. Kim, H.K. Lee, J.S. Kim, J.S. Kang, J.T. Hong, Y. Kim, B.Y. Hwang, and S.B. Han. 2013b. Effusanin C inhibits inflammatory responses via blocking NF-kappaB and MAPK signaling in monocytes. International Immunopharmacology 15: 84–88.
Kim, J.Y., H.S. Kim, Y.J. Kim, H.K. Lee, J.S. Kim, J.S. Kang, J.T. Hong, Y. Kim, B.Y. Hwang, and S.B. Han. 2013c. Inhibition of TAK1 by kamebakaurin in dendritic cells. International Immunopharmacology 15: 138–143.
Lee, B., J.H. Kwak, S.W. Huang, J.Y. Jang, S. Lim, Y.S. Kwak, K. Lee, H.S. Kim, S.B. Han, J.T. Hong, H. Lee, S. Song, S.Y. Seo, and J.K. Jung. 2012a. Design and synthesis of 4-O-methylhonokiol analogs as inhibitors of cyclooxygenase-2 (COX-2) and PGF(1) production. Bioorganic and Medicinal Chemistry 20: 2860–2868.
Lee, H.K., H.S. Kim, Y.J. Kim, J.S. Kim, Y.S. Park, J.S. Kang, D.Y. Yuk, J.T. Hong, Y. Kim, and S.B. Han. 2013a. Sophoricoside isolated from Sophora japonica ameliorates contact dermatitis by inhibiting NF-kappaB signaling in B cells. International Immunopharmacology 15: 467–473.
Lee, N.J., J.H. Oh, J.O. Ban, J.H. Shim, H.P. Lee, J.K. Jung, B.W. Ahn, D.Y. Yoon, S.B. Han, Y.W. Ham, and J.T. Hong. 2013b. 4-O-methylhonokiol, a PPARgamma agonist, inhibits prostate tumour growth: p21-mediated suppression of NF-kappaB activity. British Journal of Pharmacology 168: 1133–1145.
Lee, Y.J., D.Y. Choi, I.S. Choi, K.H. Kim, Y.H. Kim, H.M. Kim, K. Lee, W.G. Cho, J.K. Jung, S.B. Han, J.Y. Han, S.Y. Nam, Y.W. Yun, J.H. Jeong, K.W. Oh, and J.T. Hong. 2012b. Inhibitory effect of 4-O-methylhonokiol on lipopolysaccharide-induced neuroinflammation, amyloidogenesis and memory impairment via inhibition of nuclear factor-kappaB in vitro and in vivo models. Journal of Neuroinflammation 9: 35.
Lee, Y.J., D.Y. Choi, Y.K. Lee, Y.M. Lee, S.B. Han, Y.H. Kim, K.H. Kim, S.Y. Nam, B.J. Lee, J.K. Kang, Y.W. Yun, K.W. Oh, and J.T. Hong. 2012c. 4-O-methylhonokiol prevents memory impairment in the Tg2576 transgenic mice model of Alzheimer’s disease via regulation of beta-secretase activity. Journal of Alzheimer’s Disease 29: 677–690.
Lee, Y.J., I.S. Choi, M.H. Park, Y.M. Lee, J.K. Song, Y.H. Kim, K.H. Kim, D.Y. Hwang, J.H. Jeong, Y.P. Yun, K.W. Oh, J.K. Jung, S.B. Han, and J.T. Hong. 2011a. 4-O-Methylhonokiol attenuates memory impairment in presenilin 2 mutant mice through reduction of oxidative damage and inactivation of astrocytes and the ERK pathway. Free Radical Biology and Medicine 50: 66–77.
Lee, Y.K., I.S. Choi, J.O. Ban, H.J. Lee, U.S. Lee, S.B. Han, J.K. Jung, Y.H. Kim, K.H. Kim, K.W. Oh, and J.T. Hong. 2011b. 4-O-methylhonokiol attenuated beta-amyloid-induced memory impairment through reduction of oxidative damages via inactivation of p38 MAP kinase. Journal of Nutritional Biochemistry 22: 476–486.
Lee, Y.K., D.Y. Yuk, T.I. Kim, Y.H. Kim, K.T. Kim, K.H. Kim, B.J. Lee, S.Y. Nam, and J.T. Hong. 2009. Protective effect of the ethanol extract of Magnolia officinalis and 4-O-methylhonokiol on scopolamine-induced memory impairment and the inhibition of acetylcholinesterase activity. Journal of Natural Medicines 63: 274–282.
Lunn, C.A. 2010. Updating the chemistry and biology of cannabinoid CB2 receptor-specific inverse agonists. Current Topics in Medicinal Chemistry 10: 768–778.
Nimmo, A.J., and R. Vink. 2009. Recent patents in CNS drug discovery: the management of inflammation in the central nervous system. Recent Patents on CNS Drug Discovery 4: 86–95.
Ochi, T., Y. Ohkubo, and S. Mutoh. 2003. Role of cyclooxygenase-2, but not cyclooxygenase-1, on type II collagen-induced arthritis in DBA/1 J mice. Biochemical Pharmacology 66: 1055–1060.
Oh, J.H., J.O. Ban, M.C. Cho, M. Jo, J.K. Jung, B. Ahn, D.Y. Yoon, S.B. Han, and J.T. Hong. 2012. 4-O-methylhonokiol inhibits colon tumor growth via p21-mediated suppression of NF-kappaB activity. Journal of Nutritional Biochemistry 23: 706–715.
Oh, J.H., L.L. Kang, J.O. Ban, Y.H. Kim, K.H. Kim, S.B. Han, and J.T. Hong. 2009. Anti-inflammatory effect of 4-O-methylhonokiol, compound isolated from Magnolia officinalis through inhibition of NF-kappaB. Chemico–Biological Interactions 180: 506–514.
Oitate, M., T. Hirota, T. Murai, S. Miura, and T. Ikeda. 2007. Covalent binding of rofecoxib, but not other cyclooxygenase-2 inhibitors, to allysine aldehyde in elastin of human aorta. Drug Metabolism and Disposition 35: 1846–1852.
Oku, H., and K. Ishiguro. 2002. Cyclooxygenase-2 inhibitory 1,4-naphthoquinones from Impatiens balsamina L. Biological and Pharmaceutical Bulletin 25: 658–660.
Ozbay, L.A., J. Stubbe, B. Jespersen, and B.L. Jensen. 2013. The effects of calcineurin inhibitors on prostanoid synthesis: a randomized cross-over study in healthy humans. Transplant International 26: 131–137.
Park, S.H., M.S. Kyeong, Y. Hwang, S.Y. Ryu, S.B. Han, and Y. Kim. 2012. Inhibition of LPS binding to MD-2 co-receptor for suppressing TLR4-mediated expression of inflammatory cytokine by 1-dehydro-10-gingerdione from dietary ginger. Biochemical and Biophysical Research Communications 419: 735–740.
Penning, T.D., J.J. Talley, S.R. Bertenshaw, J.S. Carter, P.W. Collins, S. Docter, M.J. Graneto, L.F. Lee, J.W. Malecha, J.M. Miyashiro, R.S. Rogers, D.J. Rogier, S.S. Yu, E.G. Andersongd Burton, J.N. Cogburn, S.A. Gregory, C.M. Koboldt, W.E. Perkins, K. Seibert, A.W. Veenhuizen, Y.Y. Zhang, and P.C. Isakson. 1997. Synthesis and biological evaluation of the 1,5-diarylpyrazole class of cyclooxygenase-2 inhibitors: identification of 4-[5-(4-methylphenyl)-3-(trifluoromethyl)-1H-pyrazol-1-yl]benze nesulfonamide (SC-58635, celecoxib). Journal of Medicinal Chemistry 40: 1347–1365.
Pertwee, R.G., A.C. Howlett, M.E. Abood, S.P. Alexander, V. Di Marzo, M.R. Elphick, P.J. Greasley, H.S. Hansen, G. Kunos, K. Mackie, R. Mechoulam, and R.A. Ross. 2010. International Union of Basic and Clinical Pharmacology. LXXIX. Cannabinoid receptors and their ligands: beyond CB(1) and CB(2). Pharmacological Reviews 62: 588–631.
Schuehly, W., J.M. Paredes, J. Kleyer, A. Huefner, S. Anavi-Goffer, S. Raduner, K.H. Altmann, and J. Gertsch. 2011. Mechanisms of osteoclastogenesis inhibition by a novel class of biphenyl-type cannabinoid CB(2) receptor inverse agonists. Chemistry and Biology 18: 1053–1064.
Schuhly, W., A. Hufner, E.M. Pferschy-Wenzig, E. Prettner, M. Adams, A. Bodensieck, O. Kunert, A. Oluwemimo, E. Haslinger, and R. Bauer. 2009a. Design and synthesis of ten biphenyl-neolignan derivatives and their in vitro inhibitory potency against cyclooxygenase-1/2 activity and 5-lipoxygenase-mediated LTB4-formation. Bioorganic and Medicinal Chemistry 17: 4459–4465.
Schuhly, W., S.I. Khan, and N.H. Fischer. 2009b. Neolignans from North American Magnolia species with cyclooxygenase 2 inhibitory activity. Inflammopharmacology 17: 106–110.
Seo, K.H., D.Y. Lee, D.S. Lee, J.H. Park, R.H. Jeong, Y.J. Jung, S. Shrestha, I.S. Chung, G.S. Kim, Y.C. Kim, and N.I. Baek. 2013. Neolignans from the fruits of Magnolia obovata and their inhibition effect on NO production in LPS-induced RAW 264.7 cells. Planta Medica 79: 1335–1340.
Son, H.J., H.J. Lee, H.S. Yun-Choi, and J.H. Ryu. 2000. Inhibitors of nitric oxide synthesis and TNF-alpha expression from Magnolia obovata in activated macrophages. Planta Medica 66: 469–471.
Taferner, B., W. Schuehly, A. Huefner, I. Baburin, K. Wiesner, G.F. Ecker, and S. Hering. 2011. Modulation of GABAA-receptors by honokiol and derivatives: subtype selectivity and structure-activity relationship. Journal of Medicinal Chemistry 54: 5349–5361.
Van Rossum, H.H., F.P. Romijn, N.P. Smit, J.W. De Fijter, and J. Van Pelt. 2009. Everolimus and sirolimus antagonize tacrolimus based calcineurin inhibition via competition for FK-binding protein 12. Biochemical Pharmacology 77: 1206–1212.
Vassiliou, E., H. Jing, and D. Ganea. 2003. Prostaglandin E2 inhibits TNF production in murine bone marrow-derived dendritic cells. Cellular Immunology 223: 120–132.
Vollmer, T.R., A. Stockhausen, and J.Z. Zhang. 2012. Anti-inflammatory effects of mapracorat, a novel selective glucocorticoid receptor agonist, is partially mediated by MAP kinase phosphatase-1 (MKP-1). Journal of Biological Chemistry 287: 35212–35221.
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This work was supported by the grants funded by the Korean government (NRF 2008-0062275 & KIAT 1415126993).
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Hyung Sook Kim, Hwa Sun Ryu have contributed equally to this work.
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Kim, H.S., Ryu, H.S., Kim, J.S. et al. Validation of cyclooxygenase-2 as a direct anti-inflammatory target of 4-O-methylhonokiol in zymosan-induced animal models. Arch. Pharm. Res. 38, 813–825 (2015). https://doi.org/10.1007/s12272-014-0456-8
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DOI: https://doi.org/10.1007/s12272-014-0456-8