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Tellería F, Mansilla S, Méndez D, Sepúlveda M, Araya-Maturana R, Castro L, Trostchansky A, Fuentes E. The Use of Triphenyl Phosphonium Cation Enhances the Mitochondrial Antiplatelet Effect of the Compound Magnolol. Pharmaceuticals (Basel) 2023; 16:210. [PMID: 37259359 PMCID: PMC9958981 DOI: 10.3390/ph16020210] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 01/20/2023] [Accepted: 01/27/2023] [Indexed: 08/31/2023] Open
Abstract
Although platelets are anucleated cells, they have fully functional mitochondria, and currently, it is known that several processes that occur in the platelet require the action of mitochondria. There are plenty of mitochondrial-targeted compounds described in the literature related to cancer, however, only a small number of studies have approached their interaction with platelet mitochondria and/or their effects on platelet activity. Recent studies have shown that magnolia extract and mitochondria-targeted magnolol can inhibit mitochondrial respiration and cell proliferation in melanoma and oral cancer cells, respectively, and they can also induce ROS and mitophagy. In this study, the effect of triphenylphosphonium cation, linked by alkyl chains of different lengths, to the organic compound magnolol on human-washed platelets was evaluated. We demonstrated that the addition of triphenylphosphonium by a four-carbon linker to magnolol (MGN4) considerably enhanced the Magnolol antiplatelet effect by a 3-fold decrease in the IC50. Additionally, platelets exposed to MGN4 5 µM showed several differences from the control including increased basal respiration, collagen-induced respiration, ATP-independent respiration, and reduced ATP-dependent respiration and non-mitochondrial respiration.
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Affiliation(s)
- Francisca Tellería
- MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Department of Clinical Biochemistry and Immunohematology, Thrombosis Research Center, Medical Technology School, Faculty of Health Sciences, Universidad de Talca, Talca 3480094, Chile
| | - Santiago Mansilla
- Departamento de Métodos Cuantitativos and Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Montevideo 11800, Uruguay
| | - Diego Méndez
- MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Department of Clinical Biochemistry and Immunohematology, Thrombosis Research Center, Medical Technology School, Faculty of Health Sciences, Universidad de Talca, Talca 3480094, Chile
| | - Magdalena Sepúlveda
- MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Department of Clinical Biochemistry and Immunohematology, Thrombosis Research Center, Medical Technology School, Faculty of Health Sciences, Universidad de Talca, Talca 3480094, Chile
| | - Ramiro Araya-Maturana
- MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Instituto de Química de Recursos Naturales, Universidad de Talca, Talca 3460000, Chile
| | - Laura Castro
- Departamento de Bioquímica and Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Montevideo 11800, Uruguay
| | - Andrés Trostchansky
- Departamento de Bioquímica and Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Montevideo 11800, Uruguay
| | - Eduardo Fuentes
- MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Department of Clinical Biochemistry and Immunohematology, Thrombosis Research Center, Medical Technology School, Faculty of Health Sciences, Universidad de Talca, Talca 3480094, Chile
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MAP kinase-dependent autophagy controls phorbol myristate acetate-induced macrophage differentiation of HL-60 leukemia cells. Life Sci 2022; 297:120481. [PMID: 35304128 DOI: 10.1016/j.lfs.2022.120481] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 03/01/2022] [Accepted: 03/09/2022] [Indexed: 11/22/2022]
Abstract
We investigated the mechanisms and the role of autophagy in the differentiation of HL-60 human acute myeloid leukemia cells induced by protein kinase C (PKC) activator phorbol myristate acetate (PMA). PMA-triggered differentiation of HL-60 cells into macrophage-like cells was confirmed by cell-cycle arrest accompanied by elevated expression of macrophage markers CD11b, CD13, CD14, CD45, EGR1, CSF1R, and IL-8. The induction of autophagy was demonstrated by the increase in intracellular acidification, accumulation/punctuation of autophagosome marker LC3-II, and the increase in autophagic flux. PMA also increased nuclear translocation of autophagy transcription factors TFEB, FOXO1, and FOXO3, as well as the expression of several autophagy-related (ATG) genes in HL-60 cells. PMA failed to activate autophagy inducer AMP-activated protein kinase (AMPK) and inhibit autophagy suppressor mechanistic target of rapamycin complex 1 (mTORC1). On the other hand, it readily stimulated the phosphorylation of mitogen-activated protein (MAP) kinases extracellular signal-regulated kinase (ERK) and c-Jun N-terminal kinase (JNK) via a protein kinase C-dependent mechanism. Pharmacological or genetic inhibition of ERK or JNK suppressed PMA-triggered nuclear translocation of TFEB and FOXO1/3, ATG expression, dissociation of pro-autophagic beclin-1 from its inhibitor BCL2, autophagy induction, and differentiation of HL-60 cells into macrophage-like cells. Pharmacological or genetic inhibition of autophagy also blocked PMA-induced macrophage differentiation of HL-60 cells. Therefore, MAP kinases ERK and JNK control PMA-induced macrophage differentiation of HL-60 leukemia cells through AMPK/mTORC1-independent, TFEB/FOXO-mediated transcriptional and beclin-1-dependent post-translational activation of autophagy.
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Zhang Q, Cheng G, Pan J, Zielonka J, Xiong D, Myers CR, Feng L, Shin SS, Kim YH, Bui D, Hu M, Bennett B, Schmainda K, Wang Y, Kalyanaraman B, You M. Magnolia extract is effective for the chemoprevention of oral cancer through its ability to inhibit mitochondrial respiration at complex I. Cell Commun Signal 2020; 18:58. [PMID: 32264893 PMCID: PMC7140380 DOI: 10.1186/s12964-020-0524-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 01/29/2020] [Indexed: 11/29/2022] Open
Abstract
Background Magnolia extract (ME) is known to inhibit cancer growth and metastasis in several cell types in vitro and in animal models. However, there is no detailed study on the preventive efficacy of ME for oral cancer, and the key components in ME and their exact mechanisms of action are not clear. The overall goal of this study is to characterize ME preclinically as a potent oral cancer chemopreventive agent and to determine the key components and their molecular mechanism(s) that underlie its chemopreventive efficacy. Methods The antitumor efficacy of ME in oral cancer was investigated in a 4-nitroquinoline-1-oxide (4NQO)-induced mouse model and in two oral cancer orthotopic models. The effects of ME on mitochondrial electron transport chain activity and ROS production in mouse oral tumors was also investigated. Results ME did not cause detectable side effects indicating that it is a promising and safe chemopreventive agent for oral cancer. Three major key active compounds in ME (honokiol, magnolol and 4-O-methylhonokiol) contribute to its chemopreventive effects. ME inhibits mitochondrial respiration at complex I of the electron transport chain, oxidizes peroxiredoxins, activates AMPK, and inhibits STAT3 phosphorylation, resulting in inhibition of the growth and proliferation of oral cancer cells. Conclusion Our data using highly relevant preclinical oral cancer models, which share histopathological features seen in human oral carcinogenesis, suggest a novel signaling and regulatory role for mitochondria-generated superoxide and hydrogen peroxide in suppressing oral cancer cell proliferation, progression, and metastasis. Video abstract
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Affiliation(s)
- Qi Zhang
- Center for Disease Prevention Research, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Department of Pharmacology & Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Gang Cheng
- Center for Disease Prevention Research, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Jing Pan
- Center for Disease Prevention Research, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Department of Pharmacology & Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Jacek Zielonka
- Center for Disease Prevention Research, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Donghai Xiong
- Center for Disease Prevention Research, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Department of Pharmacology & Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Charles R Myers
- Center for Disease Prevention Research, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Department of Pharmacology & Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Liang Feng
- Center for Disease Prevention Research, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Department of Pharmacology & Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | | | | | - Dinh Bui
- College of Pharmacy, University of Houston, Houston, TX, 77204-5037, USA
| | - Ming Hu
- College of Pharmacy, University of Houston, Houston, TX, 77204-5037, USA
| | - Brian Bennett
- Department of Physics, Marquette University, Milwaukee, WI, 53233, USA
| | - Kathleen Schmainda
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Yian Wang
- Center for Disease Prevention Research, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Department of Pharmacology & Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Balaraman Kalyanaraman
- Center for Disease Prevention Research, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Ming You
- Center for Disease Prevention Research, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA. .,Department of Pharmacology & Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.
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Zheng Y, Zhang J, Zhang R, Luo Z, Wang C, Shi S. Gold nano particles synthesized from Magnolia officinalis and anticancer activity in A549 lung cancer cells. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:3101-3109. [PMID: 31343369 DOI: 10.1080/21691401.2019.1645152] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nanotechnology is creating a bang in each and every field of life science. Scientists are mounting their interest of research towards gold nanoparticles as they are capable with bigger and advanced properties.Traditionally nanoparticles have been manufactured by various chemical and physical methods but have negative impact on the environment and are also highly toxic. Synthesis of nanoparticles by using plant extracts is substituting the conventional methods and it is eco-friendly too. In the current study, we prepared gold nanoparticles (AuNPs) from Magnolia officinalis, which is identified as an eco-friendly and less toxic method. Incorporation of AuNPs was renowned by UV-absorbance and it shows peak values. Nanoparticle sizes are recognized by dynamic light scattering scrutiny and it shows a value of 128 nm. Besides, high resolution transmission electron microscopy (HR-TEM), energy dispersive X-ray analysis (EDX) and atomic force microscopy (AFM) incorrigibly define the shape of the AuNPs which are present in the complex materials. Fourier-transform infrared spectroscopy (FTIR) findings display that the active molecules are positioned in the plane of the AuNPs. Similarly, anticancer efficacy of AuNPs have been assessed in A549 cells. our study show that AuNPs effectively provoke cytotoxicity, and apoptosis by inflecting apoptotic gene expressions in A549 cells.
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Affiliation(s)
- Yuanyuan Zheng
- a Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Kunming Medical University , Kunming , Yunnan , P. R. China
| | - Jianwu Zhang
- b School of Pharmacy, North Sichuan Medical College , Nanchong , Sichuan , P. R. China
| | - Rui Zhang
- c Department of Thoracic Surgery, The Seventh People's Hospital of Chengdu , Chengdu , Sichuan , P. R. China
| | - Zhuang Luo
- a Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Kunming Medical University , Kunming , Yunnan , P. R. China
| | - Chu Wang
- a Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Kunming Medical University , Kunming , Yunnan , P. R. China
| | - Shaoqing Shi
- a Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Kunming Medical University , Kunming , Yunnan , P. R. China
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Bioactive Compounds: Multi-Targeting Silver Bullets for Preventing and Treating Breast Cancer. Cancers (Basel) 2019; 11:cancers11101563. [PMID: 31618928 PMCID: PMC6826729 DOI: 10.3390/cancers11101563] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/05/2019] [Accepted: 10/10/2019] [Indexed: 01/01/2023] Open
Abstract
Each cell in our body is designed with a self-destructive trigger, and if damaged, can happily sacrifice itself for the sake of the body. This process of self-destruction to safeguard the adjacent normal cells is known as programmed cell death or apoptosis. Cancer cells outsmart normal cells and evade apoptosis and it is one of the major hallmarks of cancer. The cardinal quest for anti-cancer drug discovery (bioactive or synthetic compounds) is to be able to re-induce the so called “programmed cell death” in cancer cells. The importance of bioactive compounds as the linchpin of cancer therapeutics is well known as many effective chemotherapeutic drugs such as vincristine, vinblastine, doxorubicin, etoposide and paclitaxel have natural product origins. The present review discusses various bioactive compounds with known anticancer potential, underlying mechanisms by which they induce cell death and their preclinical/clinical development. Most bioactive compounds can concurrently target multiple signaling pathways that are important for cancer cell survival while sparing normal cells hence they can potentially be the silver bullets for targeting cancer growth and metastatic progression.
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Banik K, Ranaware AM, Deshpande V, Nalawade SP, Padmavathi G, Bordoloi D, Sailo BL, Shanmugam MK, Fan L, Arfuso F, Sethi G, Kunnumakkara AB. Honokiol for cancer therapeutics: A traditional medicine that can modulate multiple oncogenic targets. Pharmacol Res 2019; 144:192-209. [DOI: 10.1016/j.phrs.2019.04.004] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 03/18/2019] [Accepted: 04/02/2019] [Indexed: 02/07/2023]
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Mędra A, Witkowska M, Majchrzak A, Cebula-Obrzut B, Bonner MY, Robak T, Arbiser JL, Smolewski P. Pro-Apoptotic Activity of New Honokiol/Triphenylmethane Analogues in B-Cell Lymphoid Malignancies. Molecules 2016; 21:molecules21080995. [PMID: 27483232 PMCID: PMC6274336 DOI: 10.3390/molecules21080995] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 07/15/2016] [Accepted: 07/18/2016] [Indexed: 11/20/2022] Open
Abstract
Honokiol and triphenylmethanes are small molecules with anti-tumor properties. Recently, we synthesized new honokiol analogues (HAs) that possess common features of both groups. We assessed the anti-tumor effectiveness of HAs in B-cell leukemia/lymphoma cells, namely in chronic lymphocytic leukemia (CLL) cells ex vivo and in pre-B-cell acute lymphoblastic leukemia (Nalm-6), Burkitt lymphoma (BL; Raji), diffuse large B-cell lymphoma (DLBCL; Toledo) and multiple myeloma (MM; RPMI 8226) cell lines. Four of these compounds appeared to be significantly active against the majority of cells examined, with no significant impact on healthy lymphocytes. These active HAs induced caspase-dependent apoptosis, causing significant deregulation of several apoptosis-regulating proteins. Overall, these compounds downregulated Bcl-2 and XIAP and upregulated Bax, Bak and survivin proteins. In conclusion, some of the HAs are potent tumor-selective inducers of apoptosis in ex vivo CLL and in BL, DLBCL and MM cells in vitro. Further preclinical studies of these agents are recommended.
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Affiliation(s)
- Aleksandra Mędra
- Department of Experimental Hematology of Medical University of Lodz, Ciołkowskiego 2 Street, Lodz 93-510, Poland.
| | - Magdalena Witkowska
- Department of Experimental Hematology of Medical University of Lodz, Ciołkowskiego 2 Street, Lodz 93-510, Poland.
| | - Agata Majchrzak
- Department of Experimental Hematology of Medical University of Lodz, Ciołkowskiego 2 Street, Lodz 93-510, Poland.
- Department of Hematology of Medical University of Lodz, Ciołkowskiego 2 Street, Lodz 93-510, Poland.
| | - Barbara Cebula-Obrzut
- Department of Experimental Hematology of Medical University of Lodz, Ciołkowskiego 2 Street, Lodz 93-510, Poland.
| | - Michael Y Bonner
- Winship Cancer Institute, Emory University School of Medicine, 101 Woodruff Cir, Atlanta, GA 30322, USA.
| | - Tadeusz Robak
- Department of Hematology of Medical University of Lodz, Ciołkowskiego 2 Street, Lodz 93-510, Poland.
| | - Jack L Arbiser
- Winship Cancer Institute, Emory University School of Medicine, 101 Woodruff Cir, Atlanta, GA 30322, USA.
- Atlanta Veterans Administration Hospital, 1670 Clairmont Road, Decatur, GA 30033, USA.
| | - Piotr Smolewski
- Department of Experimental Hematology of Medical University of Lodz, Ciołkowskiego 2 Street, Lodz 93-510, Poland.
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Cuomo RE, Garland CF, Gorham ED, Mohr SB. Low Cloud Cover-Adjusted Ultraviolet B Irradiance Is Associated with High Incidence Rates of Leukemia: Study of 172 Countries. PLoS One 2015; 10:e0144308. [PMID: 26637119 PMCID: PMC4670097 DOI: 10.1371/journal.pone.0144308] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 11/15/2015] [Indexed: 12/31/2022] Open
Abstract
There are 52,380 cases of leukemia and 24,090 deaths from it in the US annually. Its causes are unknown and no preventive strategies have been implemented. We hypothesized that leukemia is due mainly to vitamin D deficiency, which is due mainly to low solar ultraviolet B (UVB) irradiance. To test this hypothesis, we estimated age-standardized cloud-cover-adjusted winter UVB irradiance using cloud cover data from the International Satellite Cloud Climatology Project, latitudes of population centroids, and standard astronomical calculations. Incidence rates for 172 countries, available from the International Agency for Cancer Research, were plotted according to cloud-adjusted UVB irradiance. We used multiple regression to account for national differences in elevation and average life expectancy. Leukemia incidence rates were inversely associated with cloud-adjusted UVB irradiance in males (p ≤ 0.01) and females (p ≤ 0.01) in both hemispheres. There were few departures from the trend line, which was parabolic when plotted with the equator at the center of the display, northern hemisphere countries on the right side and southern hemisphere countries on the left. The bivariate association displayed by the polynomial trend line indicated that populations at higher latitudes had at least two times the risk of leukemia compared to equatorial populations. The association persisted in males (p ≤ 0.05) and females (p ≤ 0.01) after controlling for elevation and life expectancy. Incidence rates of leukemia were inversely associated with solar UVB irradiance. It is plausible that the association is due to vitamin D deficiency. This would be consistent with laboratory studies and a previous epidemiological study. Consideration should be given to prudent use of vitamin D for prevention of leukemia.
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Affiliation(s)
- Raphael E. Cuomo
- Division of Global Health, Department of Family Medicine and Public Health, University of California San Diego, La Jolla, California, United States of America
- Graduate School of Public Health, San Diego State University, San Diego, California, United States of America
- * E-mail:
| | - Cedric F. Garland
- Division of Epidemiology, Department of Family Medicine and Public Health, University of California San Diego, La Jolla, California, United States of America
| | - Edward D. Gorham
- Division of Epidemiology, Department of Family Medicine and Public Health, University of California San Diego, La Jolla, California, United States of America
| | - Sharif B. Mohr
- Division of Epidemiology, Department of Family Medicine and Public Health, University of California San Diego, La Jolla, California, United States of America
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Liang WZ, Chou CT, Chang HT, Cheng JS, Kuo DH, Ko KC, Chiang NN, Wu RF, Shieh P, Jan CR. The mechanism of honokiol-induced intracellular Ca(2+) rises and apoptosis in human glioblastoma cells. Chem Biol Interact 2014; 221:13-23. [PMID: 25106108 DOI: 10.1016/j.cbi.2014.07.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 07/15/2014] [Accepted: 07/25/2014] [Indexed: 12/21/2022]
Abstract
Honokiol, an active constituent of oriental medicinal herb Magnolia officinalis, caused Ca(2+) mobilization and apoptosis in different cancer cells. In vivo, honokiol crossed the blood-brain or -cerebrospinal fluid barrier, suggesting that it may be an effective drug for the treatment of brain tumors, including glioblastoma. This study examined the effect of honokiol on intracellular Ca(2+) concentration ([Ca(2+)]i) and apoptosis in DBTRG-05MG human glioblastoma cells. Honokiol concentration-dependently induced a [Ca(2+)]i rise. The signal was decreased partially by removal of extracellular Ca(2+). Honokiol-triggered [Ca(2+)]i rise was not suppressed by store-operated Ca(2+) channel blockers (nifedipine, econazole, SK&F96365) and the protein kinase C (PKC) activator phorbol 12-myristate 13 acetate (PMA), but was inhibited by the PKC inhibitor GF109203X. GF109203X-induced inhibition was not altered by removal of extracellular Ca(2+). In Ca(2+)-free medium, pretreatment with the endoplasmic reticulum Ca(2+) pump inhibitor thapsigargin (TG) or 2,5-di-tert-butylhydroquinone (BHQ) abolished honokiol-induced [Ca(2+)]i rise. Conversely, incubation with honokiol abolished TG or BHQ-induced [Ca(2+)]i rise. Inhibition of phospholipase C (PLC) with U73122 abolished honokiol-induced [Ca(2+)]i rise. Honokiol (20-80μM) reduced the cell viability, which was not reversed by prechelating cytosolic Ca(2+) with BAPTA-AM (1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid-acetoxymethyl ester). Honokiol (20-60μM) enhanced reactive oxygen species (ROS) production, decreased mitochondrial membrane potential, released cytochrome c, and activated caspase-9/caspase-3. Together, honokiol induced a [Ca(2+)]i rise by inducing PLC-dependent Ca(2+) release from the endoplasmic reticulum and Ca(2+) entry via PKC-dependent, non store-operated Ca(2+) channels. Moreover, honokiol activated the mitochondrial pathway of apoptosis in DBTRG-05MG human glioblastoma cells.
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Affiliation(s)
- Wei-Zhe Liang
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan, ROC
| | - Chiang-Ting Chou
- Department of Nursing, Division of Basic Medical Sciences, Chang Gung University of Science and Technology, Chia-Yi 613, Taiwan, ROC; Chronic Diseases and Health Promotion Research Center, Chang Gung University of Science and Technology, Chia-Yi 613, Taiwan, ROC
| | - Hong-Tai Chang
- Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan, ROC
| | - Jin-Shiung Cheng
- Department of Medicine, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan, ROC
| | - Daih-Huang Kuo
- Department of Pharmacy, Tajen University, Pingtung 907, Taiwan, ROC
| | - Kuang-Chung Ko
- Department of Gastroenterology, Kaohsiung Veterans General Hospital-Pingtung Branch 912, Taiwan, ROC
| | - Ni-Na Chiang
- Department of Pharmacy, Kaohsiung Veterans General Hospital-Pingtung Branch 912, Taiwan, ROC
| | - Ru-Fang Wu
- Department of Pharmacy, Kaohsiung Municipal Kai-Syuan Psychiatric Hospital, Kaohsiung 802, Taiwan, ROC
| | - Pochuen Shieh
- Department of Pharmacy, Tajen University, Pingtung 907, Taiwan, ROC
| | - Chung-Ren Jan
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan, ROC.
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Magnolol Suppresses MetastasisviaInhibition of Invasion, Migration, and Matrix Metalloproteinase-2/-9 Activities in PC-3 Human Prostate Carcinoma Cells. Biosci Biotechnol Biochem 2014; 74:961-7. [DOI: 10.1271/bbb.90785] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Liu Y, Cao W, Zhang B, Liu YQ, Wang ZY, Wu YP, Yu XJ, Zhang XD, Ming PH, Zhou GB, Huang L. The natural compound magnolol inhibits invasion and exhibits potential in human breast cancer therapy. Sci Rep 2013; 3:3098. [PMID: 24226295 PMCID: PMC3827615 DOI: 10.1038/srep03098] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Accepted: 10/15/2013] [Indexed: 11/12/2022] Open
Abstract
Invasion and metastasis are the main causes of treatment failure and death in breast cancer. Thus, novel invasion-based therapies such as those involving natural agents are urgently required. In this study, we examined the effects of magnolol (Mag), a compound extracted from medicinal herbs, on breast cancer cells in vitro and in vivo. Highly invasive cancer cells were found to be highly sensitive to treatment. Mag markedly inhibited the activity of highly invasive MDA-MB-231 cells. Furthermore, Mag significantly downregulated matrix metalloproteinase-9 (MMP-9) expression, an enzyme critical to tumor invasion. Mag also inhibited nuclear factor-κB (NF-κB) transcriptional activity and the DNA binding of NF-κB to MMP-9 promoter. These results indicate that Mag suppresses tumor invasion by inhibiting MMP-9 through the NF-κB pathway. Moreover, Mag overcame the promoting effects of phorbol 12-myristate 13-acetate (PMA) on the invasion of MDA-MB-231 cells. Our findings reveal the therapeutic potential and mechanism of Mag against cancer.
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Affiliation(s)
- Ying Liu
- 1] School of Life Sciences, Tsinghua University, Beijing, 100084, China [2] The Shenzhen Key Laboratory of Gene & Antibody Therapy, State Key Laboratory of Health Science & Technology (prep), Center for Biotechnology & Biomedicine and Division of Life & Health Sciences, Graduate School at Shenzhen, Tsinghua University, Shenzhen, Guangdong, 518055, China [3]
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Ophiobolin-O reverses adriamycin resistance via cell cycle arrest and apoptosis sensitization in adriamycin-resistant human breast carcinoma (MCF-7/ADR) cells. Mar Drugs 2013; 11:4570-84. [PMID: 24240979 PMCID: PMC3853746 DOI: 10.3390/md11114570] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Revised: 10/20/2013] [Accepted: 10/24/2013] [Indexed: 12/24/2022] Open
Abstract
Multidrug-resistance is a major obstacle facing cancer chemotherapy. This paper demonstrates that novel compound Ophiobolin-O reverses MCF-7/ADR resistance to adriamycin (ADM). The IC50 of ADM treated MCF-7 cells was 2.02 ± 0.05 µM and 74.00 ± 0.18 µM treated MCF-7/ADR cells, about 37-fold, compared to the former. However, 0.1 µM Ophiobolin-O (less than 20% inhibition concentration) combined with ADM caused the decreased IC50 of ADM to 6.67 ± 0.98 µM, indicating it reversed ADM resistance of MCF-7/ADR cells (11-fold). Furthermore, Ophiobolin-O increased ADM-induced mitochondrial pathway apoptosis and G2/M phase arrest, which is partly due to the elevation level of ROS in MCF-7/ADR cells. As we described in this paper, the reversal effect of Ophiobolin-O may be due to the reduction of resistance-related protein P-Glycoprotein (P-gp, also known as MDR1) through inhibiting the activity of the multidrug resistance 1 (MDR1) gene promoter, which makes MCF-7/ADR cells more sensitive to ADM treatment. Assays in nude mice also showed that the combination of ADM and Ophiobolin-O significantly improved the effect of ADM.
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Hou X, Yuan X, Zhang B, Wang S, Chen Q. Screening active anti-breast cancer compounds from Cortex Magnolia officinalis
by 2DLC-MS. J Sep Sci 2013; 36:706-12. [DOI: 10.1002/jssc.201200896] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Revised: 10/25/2012] [Accepted: 11/01/2012] [Indexed: 12/15/2022]
Affiliation(s)
- Xiaofang Hou
- School of Medicine; Xi'an Jiaotong University; Xi'an P. R. China
| | - Xilong Yuan
- School of Medicine; Xi'an Jiaotong University; Xi'an P. R. China
| | - Bing Zhang
- School of Medicine; Xi'an Jiaotong University; Xi'an P. R. China
| | - Sicen Wang
- School of Medicine; Xi'an Jiaotong University; Xi'an P. R. China
| | - Qinhua Chen
- Dongfeng Hospital; Hubei University of Medicine; Shiyan P. R. China
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14
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Han P, Luan F, Yan X, Gao Y, Liu H. Separation and determination of honokiol and magnolol in Chinese traditional medicines by capillary electrophoresis with the application of response surface methodology and radial basis function neural network. J Chromatogr Sci 2012; 50:71-5. [PMID: 22291059 DOI: 10.1093/chromsci/bmr010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
A method for the separation and determination of honokiol and magnolol in Magnolia officinalis and its medicinal preparation is developed by capillary zone electrophoresis and response surface methodology. The concentration of borate, content of organic modifier, and applied voltage are selected as variables. The optimized conditions (i.e., 16 mmol/L sodium tetraborate at pH 10.0, 11% methanol, applied voltage of 25 kV and UV detection at 210 nm) are obtained and successfully applied to the analysis of honokiol and magnolol in Magnolia officinalis and Huoxiang Zhengqi Liquid. Good separation is achieved within 6 min. The limits of detection are 1.67 µg/mL for honokiol and 0.83 µg/mL for magnolol, respectively. In addition, an artificial neural network with "3-7-1" structure based on the ratio of peak resolution to the migration time of the later component (R(s)/t) given by Box-Behnken design is also reported, and the predicted results are in good agreement with the values given by the mathematic software and the experimental results.
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Affiliation(s)
- Ping Han
- Department of Applied Chemistry, Yantai University, Yantai 264005, China
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Lin JM, Prakasha Gowda AS, Sharma AK, Amin S. In vitro growth inhibition of human cancer cells by novel honokiol analogs. Bioorg Med Chem 2012; 20:3202-11. [PMID: 22533983 DOI: 10.1016/j.bmc.2012.03.062] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Revised: 03/19/2012] [Accepted: 03/27/2012] [Indexed: 11/26/2022]
Abstract
Honokiol possesses many pharmacological activities including anti-cancer properties. Here in, we designed and synthesized honokiol analogs that block major honokiol metabolic pathway which may enhance their effectiveness. We studied their cytotoxicity in human cancer cells and evaluated possible mechanism of cell cycle arrest. Two analogs, namely 2 and 4, showed much higher growth inhibitory activity in A549 human lung cancer cells and significant increase of cell population in the G0-G1 phase. Further elucidation of the inhibition mechanism on cell cycle showed that analogs 2 and 4 inhibit both CDK1 and cyclin B1 protien levels in A549 cells.
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Affiliation(s)
- Jyh Ming Lin
- Department of Biochemistry & Molecular Biology, College of Medicine, Pennsylvania State University, Hershey, PA 17033, USA.
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Wang X, Deng L, Cai L, Zhang X, Zheng H, Deng C, Duan X, Zhao X, Wei Y, Chen L. Preparation, characterization, pharmacokinetics, and bioactivity of honokiol‐in‐hydroxypropyl‐β‐cyclodextrin‐in‐liposome. J Pharm Sci 2011; 100:3357-3364. [DOI: 10.1002/jps.22534] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2010] [Revised: 01/08/2011] [Accepted: 01/25/2011] [Indexed: 11/12/2022]
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17
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Chuang TC, Hsu SC, Cheng YT, Shao WS, Wu K, Fang GS, Ou CC, Wang V. Magnolol down-regulates HER2 gene expression, leading to inhibition of HER2-mediated metastatic potential in ovarian cancer cells. Cancer Lett 2011; 311:11-9. [PMID: 21757288 DOI: 10.1016/j.canlet.2011.06.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Revised: 06/09/2011] [Accepted: 06/12/2011] [Indexed: 01/01/2023]
Abstract
Overexpression of the HER2 oncogene contributes to tumor cell invasion, metastasis and angiogenesis and correlates with poor prognosis. Magnolol has been reported to exhibit anti-tumor activities. However, the molecular mechanism of action of magnolol has not been investigated in HER2-positive cancer cells. Therefore, we examined the anti-cancer effects of magnolol on HER2-overexpressing ovarian cancer cells. Magnolol treatment caused a dose-dependent inhibition of HER2 gene expression at the transcriptional level, potentially in part through suppression of NF-κB activation. Treatment of HER2-overexpressing ovarian cancer cells with magnolol down-regulated the HER2 downstream PI3K/Akt signaling pathway, and suppressed the expression of downstream target genes, vascular endothelial growth factor (VEGF), matrix metalloproteinase 2 (MMP2) and cyclin D1. Consistently, magnolol-mediated inhibition of MMP2 activity could be prevented by co-treatment with epidermal growth factor. Migration assays revealed that magnolol treatment markedly reduced the motility of HER2-overexpressing ovarian cancer cells. Furthermore, magnolol-induced apoptosis in HER2-overexpressing ovarian cancer cells was characterized by the up-regulation of cleaved poly(ADP-ribose) polymerase (PARP) and activated caspase 3. These findings suggest that magnolol may act against HER2 and its downstream PI3K/Akt/mTOR-signaling network, thus resulting in suppression of HER2-mediated transformation and metastatic potential in HER2-overexpressing ovarian cancers. These results provide a novel mechanism to explain the anti-cancer effect of magnolol.
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Affiliation(s)
- Tzu-Chao Chuang
- Department of Chemistry, Tamkang University, New Taipei, Taiwan, ROC.
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Arora S, Bhardwaj A, Srivastava SK, Singh S, McClellan S, Wang B, Singh AP. Honokiol arrests cell cycle, induces apoptosis, and potentiates the cytotoxic effect of gemcitabine in human pancreatic cancer cells. PLoS One 2011; 6:e21573. [PMID: 21720559 PMCID: PMC3123370 DOI: 10.1371/journal.pone.0021573] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Accepted: 06/02/2011] [Indexed: 01/25/2023] Open
Abstract
Survival rates for patients with pancreatic cancer are extremely poor due to its asymptomatic progression to advanced and metastatic stage for which current therapies remain largely ineffective. Therefore, novel therapeutic agents and treatment approaches are desired to improve the clinical outcome. In this study, we determined the effects of honokiol, a biologically active constituent of oriental medicinal herb Magnolia officinalis/grandiflora, on two pancreatic cancer cell lines, MiaPaCa and Panc1, alone and in combination with the standard chemotherapeutic drug, gemcitabine. Honokiol exerted growth inhibitory effects on both the pancreatic cancer cell lines by causing cell cycle arrest at G1 phase and induction of apoptosis. At the molecular level, honokiol markedly decreased the expression of cyclins (D1 and E) and cyclin-dependent kinases (Cdk2 and Cdk4), and caused an increase in Cdk inhibitors, p21 and p27. Furthermore, honokiol treatment led to augmentation of Bax/Bcl-2 and Bax/Bcl-xL ratios to favor apoptosis in pancreatic cancer cells. These changes were accompanied by enhanced cytoplasmic accumulation of NF-κB with a concomitant decrease in nuclear fraction and reduced transcriptional activity of NF-κB responsive promoter. This was associated with decreased phosphorylation of inhibitor of kappa B alpha (IκB-α) causing its stabilization and thus increased cellular levels. Importantly, honokiol also potentiated the cytotoxic effects of gemcitabine, in part, by restricting the gemcitabine-induced nuclear accumulation of NF-κB in the treated pancreatic cancer cell lines. Altogether, these findings demonstrate, for the first time, the growth inhibitory effects of honokiol in pancreatic cancer and indicate its potential usefulness as a novel natural agent in prevention and therapy.
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Affiliation(s)
- Sumit Arora
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, Alabama, United States of America
| | - Arun Bhardwaj
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, Alabama, United States of America
| | - Sanjeev K. Srivastava
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, Alabama, United States of America
| | - Seema Singh
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, Alabama, United States of America
| | - Steven McClellan
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, Alabama, United States of America
| | - Bin Wang
- Department of Mathematics and Statistics, College of Arts and Sciences, University of South Alabama, Mobile, Alabama, United States of America
| | - Ajay P. Singh
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, Alabama, United States of America
- Department of Biochemistry and Molecular Biology, College of Medicine, University of South Alabama, Mobile, Alabama, United States of America
- * E-mail:
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19
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Beneficial effects of magnolol in a rodent model of endotoxin shock. Eur J Pharmacol 2010; 641:67-73. [DOI: 10.1016/j.ejphar.2010.05.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2009] [Revised: 04/22/2010] [Accepted: 05/11/2010] [Indexed: 11/21/2022]
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20
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Leeman-Neill RJ, Cai Q, Joyce SC, Thomas SM, Bhola NE, Neill DB, Arbiser JL, Grandis JR. Honokiol inhibits epidermal growth factor receptor signaling and enhances the antitumor effects of epidermal growth factor receptor inhibitors. Clin Cancer Res 2010; 16:2571-9. [PMID: 20388852 DOI: 10.1158/1078-0432.ccr-10-0333] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE This study aimed to investigate the utility of honokiol, a naturally occurring compound, in the treatment of head and neck squamous cell carcinoma (HNSCC) as well as its ability to target the epidermal growth factor receptor (EGFR), a critical therapeutic target in HNSCC, and to enhance the effects of other EGFR-targeting therapies. EXPERIMENTAL DESIGN Human HNSCC cell lines and the xenograft animal model of HNSCC were used to test the effects of honokiol treatment. RESULTS Honokiol was found to inhibit growth in human HNSCC cell lines, with 50% effective concentration (EC(50)) values ranging from 3.3 to 7.4 micromol/L, and to induce apoptosis, as shown through Annexin V staining. These effects were associated with inhibition of EGFR signaling, including downstream inhibition of mitogen-activated protein kinase, Akt, and signal transducer and activator of transcription 3 (STAT3), and expression of STAT3 target genes, Bcl-X(L) and cyclin D1. Furthermore, honokiol enhanced the growth inhibitory and anti-invasion activity of the EGFR-targeting agent erlotinib. Although HNSCC xenograft models did not show significant inhibition of in vivo tumor growth with honokiol treatment alone, the combination of honokiol plus cetuximab, a Food and Drug Administration-approved EGFR inhibitor for this malignancy, significantly enhanced growth inhibition. Finally, HNSCC cells rendered resistant to erlotinib retained sensitivity to the growth inhibitory effects of honokiol. CONCLUSIONS These results suggest that honokiol may be an effective therapeutic agent in HNSCC, in which it can augment the effects of EGFR inhibitors and overcome drug resistance.
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Affiliation(s)
- Rebecca J Leeman-Neill
- Department of Pathology, University of Pittsburgh and University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania, USA
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Cao Y, Song Y, An N, Zeng S, Wang D, Yu L, Zhu T, Zhang T, Cui J, Zhou C, Deng X. The effects of telocinobufagin isolated from Chan Su on the activation and cytokine secretion of immunocytes in vitro. Fundam Clin Pharmacol 2009; 23:457-64. [PMID: 19709323 DOI: 10.1111/j.1472-8206.2009.00696.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Many traditional Chinese medicines have been used as immunomodulators that act as either immunosuppressants or immunostimulators. Recently, our lab successfully isolated a monomer telocinobufagin (TCB) from the chloroform extract of Chan Su (Venenum Bufonis). In the present paper, we evaluated the immunomodulatory effects of this compound in vitro. We found that TCB significantly stimulates splenocyte proliferation when administered alone or in combination with polyclonal T-cell mitogens concanavalin A (Con A) and lipopolysaccharide. Telocinobufagin markedly enhances natural killer cell and peritoneal macrophage activation. Telocinobufagin increases the percentage of CD4, CD8 positive cells within a population of splenocytes. Moreover, we found that the level of several Th1 cytokines, including interleukin-2 (IL-2), interleukin-12 (IL-12), interferon-gamma (IFN-gamma) and tumor necrosis factor-alpha (TNF-alpha), are significantly increased after TCB treatment, while the level of the Th2 cytokine interleukin-4 (IL-4) is significantly decreased. As a result, the ratio of Th1/Th2 is significantly increased. Taken together, these results indicate that TCB has potential immune system regulatory effects and suggest that this compound could be developed as a novel immunotherapeutic agent to treat cancer and other immune-mediated diseases, and it may become a new immunomodulatory agent in many regions.
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Affiliation(s)
- Yongguo Cao
- Department of Veterinary Pharmacology, College of Animal Science and Veterinary Medicine, Jilin University, Changchun, Jilin, China
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23
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Magnolol enhances adipocyte differentiation and glucose uptake in 3T3-L1 cells. Life Sci 2009; 84:908-14. [DOI: 10.1016/j.lfs.2009.04.001] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2008] [Revised: 12/06/2008] [Accepted: 04/03/2009] [Indexed: 11/17/2022]
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24
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Self-assembled honokiol-loaded micelles based on poly(ɛ-caprolactone)-poly(ethylene glycol)-poly(ɛ-caprolactone) copolymer. Int J Pharm 2009; 369:170-5. [DOI: 10.1016/j.ijpharm.2008.10.027] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2008] [Accepted: 10/26/2008] [Indexed: 11/22/2022]
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25
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Lee SJ, Cho YH, Park K, Kim EJ, Kang BS, Jung KH, Kim CH, Kim WJ, Moon SK. Inhibitory effects of the aqueous extract of Magnolia officinalis
on the responses of human urinary bladder cancer 5637 cells in vitro
and mouse urinary bladder tumors induced by N
-Butyl-N
-(4-hydroxybutyl) nitrosamine in vivo. Phytother Res 2008; 23:20-7. [DOI: 10.1002/ptr.2413] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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26
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Liu H, Zang C, Emde A, Planas-Silva MD, Rosche M, Kühnl A, Schulz CO, Elstner E, Possinger K, Eucker J. Anti-tumor effect of honokiol alone and in combination with other anti-cancer agents in breast cancer. Eur J Pharmacol 2008; 591:43-51. [DOI: 10.1016/j.ejphar.2008.06.026] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2007] [Revised: 05/26/2008] [Accepted: 06/05/2008] [Indexed: 11/28/2022]
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27
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Hou W, Chen L, Yang G, Zhou H, Jiang Q, Zhong Z, Hu J, Chen X, Wang X, Yuan Y, Tang M, Wen J, Wei Y. Synergistic antitumor effects of liposomal honokiol combined with adriamycin in breast cancer models. Phytother Res 2008; 22:1125-32. [DOI: 10.1002/ptr.2472] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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28
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Kang JS, Lee KH, Han MH, Lee H, Ahn JM, Han SB, Han G, Lee K, Park SK, Kim HM. Antiinflammatory activity of methanol extract isolated from stem bark ofMagnolia kobus. Phytother Res 2008; 22:883-8. [DOI: 10.1002/ptr.2386] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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29
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Li J, Ren C, Zhang Y, Liu X, Yao X, Hu Z. Human serum albumin interaction with honokiol studied using optical spectroscopy and molecular modeling methods. J Mol Struct 2008. [DOI: 10.1016/j.molstruc.2007.08.039] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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30
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Lee SJ, Cho YH, Park K, Kim EJ, Jung KH, Park SS, Kim WJ, Moon SK. Magnolol elicits activation of the extracellular signal-regulated kinase pathway by inducing p27KIP1-mediated G2/M-phase cell cycle arrest in human urinary bladder cancer 5637 cells. Biochem Pharmacol 2008; 75:2289-300. [DOI: 10.1016/j.bcp.2008.03.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2008] [Revised: 03/13/2008] [Accepted: 03/25/2008] [Indexed: 01/21/2023]
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Li Z, Liu Y, Zhao X, Pan X, Yin R, Huang C, Chen L, Wei Y. Honokiol, a natural therapeutic candidate, induces apoptosis and inhibits angiogenesis of ovarian tumor cells. Eur J Obstet Gynecol Reprod Biol 2008; 140:95-102. [PMID: 18440692 DOI: 10.1016/j.ejogrb.2008.02.023] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2007] [Revised: 01/26/2008] [Accepted: 02/23/2008] [Indexed: 12/17/2022]
Abstract
OBJECTIVES To observe the anti-tumor activities of honokiol on human ovarian tumor in vitro and in vivo. STUDY DESIGN Cells were treated with honokiol, and the effects on proliferation and apoptosis were examined by MTT, DNA ladder, Hoechst staining, and flow cytometry assays. Expression of Bcl-2 members and caspase-3 were assessed. Measurements of tumor volume and microvessel densities (MVDs) were performed. RESULTS Honokiol significantly inhibited proliferation and induced apoptosis, with alteration of Bcl-2 members and caspase-3. Administration of honokiol to tumor-bearing animals decreased MVD and resulted in inhibition of tumor growth. CONCLUSIONS Honokiol could induce apoptosis and inhibit angiogenesis in vitro and in vivo, suggesting a novel and attractive therapeutic candidate for ovarian tumor treatment.
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Affiliation(s)
- Zhengyu Li
- Department of Obstetrics and Gynecology, West China Second Hospital of Sichuan University, Renmin South Road, Chengdu 610041, People's Republic of China
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Hahm ER, Arlotti JA, Marynowski SW, Singh SV. Honokiol, a Constituent of Oriental Medicinal Herb Magnolia officinalis, Inhibits Growth of PC-3 Xenografts In vivo in Association with Apoptosis Induction. Clin Cancer Res 2008; 14:1248-57. [DOI: 10.1158/1078-0432.ccr-07-1926] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lee SC, Jung P, Kim YJ, Yun SJ, Lee SC, Kim WJ. Anticancer Effect of Magnolia officinalis'Extract on N-butyl-N-(4-hydroxybutyl) Nitrosamine Induced Bladder Cancer in Mice. Korean J Urol 2008. [DOI: 10.4111/kju.2008.49.8.682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Seung-Chan Lee
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Pildu Jung
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Yong-June Kim
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Seok Joong Yun
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Sang-Cheol Lee
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Wun-Jae Kim
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
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Hahm ER, Singh SV. Honokiol causes G0-G1 phase cell cycle arrest in human prostate cancer cells in association with suppression of retinoblastoma protein level/phosphorylation and inhibition of E2F1 transcriptional activity. Mol Cancer Ther 2007; 6:2686-95. [DOI: 10.1158/1535-7163.mct-07-0217] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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35
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Wu CA, Wu JJ, Tsai MJ, Chen RY. Immunomodulatory effects of a traditional Chinese medicine, Chi-Shie-Shuang-Bu-An-Shen-Tang, on BALB/c mice. JOURNAL OF ETHNOPHARMACOLOGY 2007; 113:300-5. [PMID: 17681444 DOI: 10.1016/j.jep.2007.06.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2006] [Revised: 06/12/2007] [Accepted: 06/22/2007] [Indexed: 05/16/2023]
Abstract
Chi-Shie-Shuang-Bu-An-Shen-Tang (CST), a traditional Chinese medicine, has long been used to stabilize one's spirit and treatment of body weakness caused by fatigue. In order to understand whether the CST possess the immunological function and effect of thermal processing on its activities, sterilized (SCST) and nonsterilized CST (NCST) extracts were orally administrated to BABL/c mice for 1 or 3 weeks as drinking water. The results showed that CST extract after sterilization at 121 degrees C for 15 min had higher immunological activities than nonsterilized CST. SCST revealed mitogenic effects on splenocyte stimulated by concanavalin A (Con A) and mediated the changes of total serum antibodies; production of IgG increased and IgE reduced. Among cytokines, secretion of IFN-gamma increased and IL-5 decreased, which fit in with the Th1 cell profile, however cytolytic activity of natural killer cells did not show any significant difference. Furthermore, the population of CD4(+) T cells in the mice spleen increased after oral administration of SCST for 3 weeks. These results suggest that SCST had the immunomodulatory effects which drove CD4(+) T cells into Th1 cells and had potential benefit to cope with CD4(+) T lymphopenia condition.
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Affiliation(s)
- Ching An Wu
- Food Industry Research and Development Institute, Hsinchu 300, Taiwan.
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36
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Kim HM, Bae SJ, Kim DW, Kim BK, Lee SB, Lee US, Kim CH, Moon SK. Inhibitory role of magnolol on proliferative capacity and matrix metalloproteinase-9 expression in TNF-α-induced vascular smooth muscle cells. Int Immunopharmacol 2007; 7:1083-91. [PMID: 17570325 DOI: 10.1016/j.intimp.2007.04.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2006] [Revised: 03/29/2007] [Accepted: 04/08/2007] [Indexed: 10/23/2022]
Abstract
Magnolol, an active component extracted from Magnolia officinalis, has been reported to inhibit the development of atherosclerotic disease. However, it is not known whether magnolol exerts similar cardioprotective effects in cells treated with TNF-alpha. In the present study, magnolol treatment was found to show potent inhibitory effects on cell proliferation in cultured VSMC in the presence of TNF-alpha. These inhibitory effects were associated with reduced extracellular signal-regulated kinase (ERK) 1/2 activity and G1 cell cycle arrest. Magnolol treatment strongly induced the expression of p21WAF1, but resulted in a decrease in cyclin-dependent kinases (CDKs) and cyclins involved in G1 progression. In addition to G1 cell cycle arrest and growth inhibition in VSMC, magnolol also caused the strong inhibition of TNF-alpha-induced matrix metalloproteinase-9 (MMP-9) expression in a dose-dependent manner as determined by zymography and immunoblot. Moreover, magnolol treatment strongly decreased MMP-9 promoter activity in response to TNF-alpha. We further demonstrated that magnolol reduced the transcriptional activity of NF-kappaB and activation protein-1 (AP-1), two important nuclear transcription factors that are involved in MMP-9 expression. Collectively, these results show that magnolol inhibits cell proliferation, G1 to S phase cell cycle progress and MMP-9 expression through the transcription factors NF-kappaB and AP-1 in TNF-alpha-induced VSMC. The findings of the present study reveal a potential mechanism that explains the anti-atherogenic activity of magnolol.
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MESH Headings
- Biphenyl Compounds/chemistry
- Biphenyl Compounds/pharmacology
- Cell Proliferation/drug effects
- Cells, Cultured
- Cyclin-Dependent Kinase 4/metabolism
- Cyclin-Dependent Kinase Inhibitor p21/metabolism
- Cyclin-Dependent Kinases/metabolism
- Dose-Response Relationship, Drug
- G1 Phase/drug effects
- Gene Expression/drug effects
- Humans
- Immunoblotting
- Lignans/chemistry
- Lignans/pharmacology
- Magnolia/chemistry
- Matrix Metalloproteinase 2/metabolism
- Matrix Metalloproteinase 9/genetics
- Matrix Metalloproteinase 9/metabolism
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Myocytes, Smooth Muscle/cytology
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- NF-kappa B/metabolism
- Plant Extracts/chemistry
- Plant Extracts/pharmacology
- Transcription Factor AP-1/metabolism
- Tumor Necrosis Factor-alpha/pharmacology
- Up-Regulation/drug effects
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Affiliation(s)
- Hong-Man Kim
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
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37
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Li L, Han W, Gu Y, Qiu S, Lu Q, Jin J, Luo J, Hu X. Honokiol induces a necrotic cell death through the mitochondrial permeability transition pore. Cancer Res 2007; 67:4894-903. [PMID: 17510419 DOI: 10.1158/0008-5472.can-06-3818] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Previous reports have shown that honokiol induces apoptosis in numerous cancer cell lines and showed preclinical efficacies against apoptosis-resistant B-cell chronic lymphocytic leukemia and multiple myeloma cells from relapse-refractory patients. Here, we show that honokiol can induce a cell death distinct from apoptosis in HL60, MCF-7, and HEK293 cell lines. The death was characterized by a rapid loss of integrity of plasma membrane without externalization of phosphatidyl serine. The broad caspase inhibitor z-VAD-fmk failed to prevent this cell death. Consistently, caspase activation and DNA laddering were not observed. The death was paralleled by a rapid loss of mitochondrial membrane potential, which was mechanistically associated with the mitochondrial permeability transition pore regulated by cyclophilin D (CypD) based on the following evidence: (a) cyclosporin A, an inhibitor of CypD (an essential component of the mitochondrial permeability transition pore), effectively prevented honokiol-induced cell death and loss of mitochondrial membrane potential; (b) inhibition of CypD by RNA interference blocked honokiol-induced cell death; (c) CypD up-regulated by honokiol was correlated with the death rates in HL60, but not in K562 cells, which underwent apoptosis after being exposed to honokiol. We further showed that honokiol induced a CypD-regulated death in primary human acute myelogenous leukemia cells, overcame Bcl-2 and Bcl-X(L)-mediated apoptotic resistance, and was effective against HL60 cells in a pilot in vivo study. To the best of our knowledge, this is the first report to document an induction of mitochondrial permeability transition pore-associated cell death by honokiol.
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Affiliation(s)
- Ling Li
- Cancer Institute, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
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38
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Tse AKW, Wan CK, Shen XL, Zhu GY, Cheung HY, Yang M, Fong WF. 1,25-Dihydroxyvitamin D3 induces biphasic NF-κB responses during HL-60 leukemia cells differentiation through protein induction and PI3K/Akt-dependent phosphorylation/degradation of IκB. Exp Cell Res 2007; 313:1722-34. [PMID: 17397830 DOI: 10.1016/j.yexcr.2007.02.022] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2006] [Revised: 02/15/2007] [Accepted: 02/27/2007] [Indexed: 12/26/2022]
Abstract
1,25-dihydroxyvitamin D(3) (VD(3)) induces differentiation in a number of leukemia cell lines and under various conditions is able to either stimulate or inhibit nuclear factor kappa B (NF-kappaB) activity. Here we report a time-dependent biphasic regulation of NF-kappaB in VD(3)-treated HL-60 leukemia cells. After VD(3) treatment there was an early approximately 4 h suppression and a late 8-72 h prolonged reactivation of NF-kappaB. The reactivation of NF-kappaB was concomitant with increased IKK activities, IKK-mediated IkappaBalpha phosphorylation, p65 phosphorylation at residues S276 and S536, p65 nuclear translocation and p65 recruitment to the NF-kappaB/vitamin D responsive element promoters. In parallel with NF-kappaB stimulation, there was an up-regulation of NF-kappaB controlled inflammatory and anti-apoptotic genes such as TNFalpha, IL-1beta and Bcl-xL. VD(3)-triggered reactivation of NF-kappaB was associated with PI3K/Akt phosphorylation. PI3K/Akt antagonists suppressed VD(3)-stimulated IkappaBalpha phosphorylation as well as NF-kappaB-controlled gene expression. The early approximately 4 h VD(3)-mediated NF-kappaB suppression coincided with a prolonged increase of IkappaBalpha protein which require de novo protein synthesis, lasted for as least 72 h and was insensitive to MAPK, IKK or PI3K/Akt inhibitors. Our data suggest a novel biphasic regulation of NF-kappaB in VD(3)-treated leukemia cells and our results may have provided the first molecular explanation for the contradictory observations reported on VD(3)-mediated immune-regulation.
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Affiliation(s)
- Anfernee Kai-Wing Tse
- Research & Development Division, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
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39
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Chen CL, Chang PL, Lee SS, Peng FC, Kuo CH, Chang HT. Analysis of magnolol and honokiol in biological fluids by capillary zone electrophoresis. J Chromatogr A 2007; 1142:240-4. [PMID: 17234199 DOI: 10.1016/j.chroma.2006.12.099] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2006] [Revised: 12/22/2006] [Accepted: 12/29/2006] [Indexed: 11/18/2022]
Abstract
Capillary zone electrophoresis (CZE) method was used for analysis of magnolol and honokiol. Under the optimized condition, CZE with UV absorption detection provided that the limit of detection was at microM level. To enhance detection sensitivity of magnolol and honokiol, CZE separation system was coupled with a laser-induced fluorescence (LIF) detector for the first time. The limits of detection of magnolol and honokiol were 12 nM (3.20 ng ml(-1)) and 18 nM (4.79 ng ml(-1)), respectively, showing that the CZE-LIF system provides greater than 100-fold sensitivity improvements than does the CZE-UV system. The developed method was applied to analyze magnolol and honokiol in spiked human plasma samples, microsome incubation samples as a preliminary demonstration of its potential in pharmacokinetic studies.
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Affiliation(s)
- Chiu-Ling Chen
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan
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40
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Tse AKW, Wan CK, Zhu GY, Shen XL, Cheung HY, Yang M, Fong WF. Magnolol suppresses NF-kappaB activation and NF-kappaB regulated gene expression through inhibition of IkappaB kinase activation. Mol Immunol 2007; 44:2647-58. [PMID: 17240450 DOI: 10.1016/j.molimm.2006.12.004] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2006] [Accepted: 12/10/2006] [Indexed: 12/31/2022]
Abstract
The mis-regulation of nuclear factor-kappa B (NF-kappaB) signal pathway is involved in a variety of inflammatory diseases that leds to the production of inflammatory mediators. Our studies using human U937 promonocytes cells suggested that magnolol, a low molecular weight lignan isolated from the medicinal plant Magnolia officinalis, differentially down-regulated the pharmacologically induced expression of NF-kappaB-regulated inflammatory gene products MMP-9, IL-8, MCP-1, MIP-1alpha, TNF-alpha. Pre-treatment of magnolol blocked TNF-alpha-induced NF-kappaB activation in different cell types as evidenced by EMSA. Magnolol did not directly affect the binding of p65/p50 heterodimer to DNA. Immunoblot analysis demonstrated that magnolol inhibited the TNF-alpha-stimulated phosphorylation and degradation of the cytosolic NF-kappaB inhibitor IkappaBalpha and the effects were dose-dependent. Mechanistically, a non-radioactive IkappaB kinases (IKK) assay using immunoprecipitated IKKs protein demonstrated that magnolol inhibited both intrinsic and TNF-alpha-stimulated IKK activity, thus suggesting a critical role of magnolol in abrogating the phosphorylation and degradation of IkappaBalpha. The involvement of IKK was further verified in a HeLa cell NF-kappaB-dependent luciferase reporter system. In this system magnolol suppressed luciferase expression stimulated by TNF-alpha and by the transient transfection and expression of NIK (NF-kappaB-inducing kinase), wild type IKKbeta, constitutively active IKKalpha and IKKbeta, or the p65 subunit. Magnolol was also found to inhibit the nuclear translocation and phosphorylation of p65 subunit of NF-kappaB. In line with the observation that NF-kappaB activation may up-regulate anti-apoptotic genes, it was shown in U937 cells that magnolol enhanced TNF-alpha-induced apoptotic cell death. Our results suggest that magnolol or its derivatives may have potential anti-inflammatory actions through IKK inactivation.
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Affiliation(s)
- Anfernee Kai-Wing Tse
- Department of Biology and Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong SAR, China
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41
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Han SJ, Bae EA, Trinh HT, Yang JH, Youn UJ, Bae KH, Kim DH. Magnolol and Honokiol: Inhibitors against Mouse Passive Cutaneous Anaphylaxis Reaction and Scratching Behaviors. Biol Pharm Bull 2007; 30:2201-3. [DOI: 10.1248/bpb.30.2201] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Sang Jun Han
- Department of Life and Nanopharmaceutical Sciences and Department of Pharmaceutical Science, Kyung Hee University
| | - Eun-Ah Bae
- Department of Life and Nanopharmaceutical Sciences and Department of Pharmaceutical Science, Kyung Hee University
| | - Hien Trung Trinh
- Department of Life and Nanopharmaceutical Sciences and Department of Pharmaceutical Science, Kyung Hee University
| | - Jung-Hwa Yang
- Department of Life and Nanopharmaceutical Sciences and Department of Pharmaceutical Science, Kyung Hee University
| | - Ui-Jung Youn
- College of Pharmacy, Chungnam National University
| | - Ki-Hwan Bae
- College of Pharmacy, Chungnam National University
| | - Dong-Hyun Kim
- Department of Life and Nanopharmaceutical Sciences and Department of Pharmaceutical Science, Kyung Hee University
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42
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Xu D, Lu Q, Hu X. Down-regulation of P-glycoprotein expression in MDR breast cancer cell MCF-7/ADR by honokiol☆. Cancer Lett 2006; 243:274-80. [PMID: 16406853 DOI: 10.1016/j.canlet.2005.11.031] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2005] [Revised: 10/18/2005] [Accepted: 11/27/2005] [Indexed: 11/20/2022]
Abstract
P-glycoprotein accounts for the most intrinsic and acquired cancer multidrug resistance. To inhibit the expression of P-glycoprotein is one of the effective ways to reverse cancer drug resistance. Honokiol, a naturally occurring compound, has been demonstrated to combat cancer through mechanisms including inhibition of angiogenesis and induction of apoptosis. Here, we show that honokiol down-regulated the expression of P-glycoprotein at mRNA and protein levels in MCF-7/ADR, a human breast MDR cancer cell line. The down-regulation of P-glycoprotein was accompanied with a partial recovery of the intracellular drug accumulation, and of the sensitivities toward adriamycin. This study reveals a novel function of honokiol as an anti-cancer agent.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B, Member 1/genetics
- ATP Binding Cassette Transporter, Subfamily B, Member 1/metabolism
- Antibiotics, Antineoplastic/pharmacology
- Biphenyl Compounds/pharmacology
- Breast Neoplasms/genetics
- Breast Neoplasms/metabolism
- Breast Neoplasms/pathology
- Cell Line, Tumor
- Cell Survival/drug effects
- Dose-Response Relationship, Drug
- Down-Regulation/drug effects
- Down-Regulation/genetics
- Doxorubicin/pharmacology
- Drug Resistance, Multiple/genetics
- Drug Resistance, Neoplasm/genetics
- Drug Synergism
- Drugs, Chinese Herbal/pharmacology
- Flow Cytometry
- Gene Expression Regulation, Neoplastic/drug effects
- Humans
- Lignans/pharmacology
- Magnolia/chemistry
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Rhodamine 123/metabolism
- Time Factors
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Affiliation(s)
- Dong Xu
- Cancer Institute, The Second Affiliated Hospital, The Medical School, Zhejiang University, 88 Jiefang Road, Hangzhou, Zhejiang Province 310009, People's Republic of China
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43
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Chan ASL, Yip ECH, Yung LY, Pang H, Luk SCW, Pang SF, Wong YH. CKBM stimulates MAPKs but inhibits LPS-induced IFN-gamma in lymphocytes. Phytother Res 2006; 20:725-31. [PMID: 16775808 DOI: 10.1002/ptr.1943] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
CKBM is an herbal formula composed of five Chinese medicinal herbs (Panax ginseng, Schisandra chinensis, Fructus crataegi, Ziziphus jujuba and Glycine max) supplemented with processed Saccharomyces cerevisiae. It has been demonstrated that CKBM is capable of triggering the release of IL-6 and TNFalpha from human peripheral blood mononuclear cells. In this report, T-lymphocytic Sup-T1 cells and B-lymphocytic Ramos cells were utilized as cellular models to investigate how CKBM regulates intracellular signaling as well as the production of cytokines. CKBM stimulated the three major subgroups of mitogen-activated protein kinase (i.e. ERK, JNK and p38) in Sup-T1 cells, but only triggered the activation of ERK and p38 in Ramos cells. The induction of mitogen-activated protein kinases (MAPK) activations varied with the duration of treatment, as well as with the dosage of CKBM. In terms of cytokine production, treatment of CKBM alone did not trigger the release of IL-1beta and IFNgamma, but it suppressed the LPS-induced IFNgamma production from both Sup-T1 cells and Ramos cells. In view of the therapeutic effects of traditional Chinese medicines in inflammatory and autoimmune disorders, the results suggest that CKBM may exhibit its immuno-modulatory effects by regulating intracellular signaling as well as cytokine production in different lymphocytic cell types.
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Affiliation(s)
- Anthony S L Chan
- Department of Biochemistry, the Molecular Neuroscience Center, and the Biotechnology Research Institute, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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44
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Lee B, Kim CH, Moon SK. Honokiol causes the p21WAF1-mediated G(1)-phase arrest of the cell cycle through inducing p38 mitogen activated protein kinase in vascular smooth muscle cells. FEBS Lett 2006; 580:5177-84. [PMID: 16962592 DOI: 10.1016/j.febslet.2006.08.064] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2006] [Revised: 07/17/2006] [Accepted: 08/24/2006] [Indexed: 11/25/2022]
Abstract
Honokiol, an active component in extracts of Magnolia officinalis, has been proposed to play a role in anti-inflammatory, antioxidant activity, anti-angiogenic and anti-tumor activity. Although honokiol has a variety of pharmacological effects on certain cell types, its effects on vascular smooth muscle cells (VSMC) are unclear. This issue was investigated in the present study, honokiol was found to inhibit cell viability and DNA synthesis in cultured VSMC. These inhibitory effects were associated with G1 cell cycle arrest. Treatment with honokiol blocks the cell cycle in the G1 phase, down-regulates the expression of cyclins and CDKs and up-regulates the expression of p21WAF1, a CDK inhibitor. While honokiol did not up-regulate p27, it caused an increase in the promoter activity of the p21WAF1 gene. Immunoblot and deletion analysis of the p21WAF1 promoter showed that honokiol induced the expression of p21WAF1 and that this expression was independent of the p53 pathway. Furthermore, the honokiol-mediated signaling pathway involved in VSMC growth inhibition was examined. Among the relevant pathways, honokiol induced a marked activation of p38 MAP kinase and JNK. The expression of dominant negative p38 MAP kinase and SB203580, a p38 MAP kinase specific inhibitor, blocked the expression of honokiol-dependent p38 MAP kinase and p21WAF1. Consistently, blockade of p38 MAPK kinase function reversed honokiol-induced VSMC proliferation and cell cycle proteins. These data demonstrate that the p38 MAP kinase pathway participates in p21WAF1 induction, subsequently leading to a decrease in the levels of cyclin D1/CDK4 and cyclin E/CDK2 complexes and honokiol-dependent VSMC growth inhibition. In conclusion, these findings concerning the molecular mechanisms of honokiol in VSMC provides a theoretical basis for clinical approaches to the use therapeutic agents in treating atherosclerosis.
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Affiliation(s)
- Beobyi Lee
- Department of Anatomy, College of Medicine, Konkuk University, Chungju City, Chungbuk 380-701, South Korea
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45
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Wan CK, Zhu GY, Shen XL, Chattopadhyay A, Dey S, Fong WF. Gomisin A alters substrate interaction and reverses P-glycoprotein-mediated multidrug resistance in HepG2-DR cells. Biochem Pharmacol 2006; 72:824-37. [PMID: 16889754 DOI: 10.1016/j.bcp.2006.06.036] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2006] [Revised: 06/12/2006] [Accepted: 06/26/2006] [Indexed: 10/24/2022]
Abstract
Through an extensive herbal drug screening program, we found that gomisin A, a dibenzocyclooctadiene compound isolated from Schisandra chinensis, reversed multidrug resistance (MDR) in Pgp-overexpressing HepG2-DR cells. Gomisin A was relatively non-toxic but without altering Pgp expression, it restored the cytotoxic actions of anticancer drugs such as vinblastine and doxorubicin that are Pgp substrates but may act by different mechanisms. Several lines of evidence suggest that gomisin A alters Pgp-substrate interaction but itself is neither a Pgp substrate nor competitive inhibitor. (1) First unlike Pgp substrates gomisin A inhibited the basal Pgp-associated ATPase (Pgp-ATPase) activity. (2) The cytotoxicity of gomisin A was not affected by Pgp competitive inhibitors such as verapamil. (3) Gomisin A acted as an uncompetitive inhibitor for Pgp-ATPase activity stimulated by the transport substrates verapamil and progesterone. (4) On the inhibition of rhodamine-123 efflux the effects of gomisin A and the competitive inhibitor verapamil were additive, so were the effects of gomisin A and the ATPase inhibitor vanadate. (5) Binding of transport substrates with Pgp would result in a Pgp conformational change favoring UIC-2 antibody reactivity but gomisin A impeded UIC-2 binding. (6) Photocrosslinking of Pgp with its transport substrate [125I]iodoarylazidoprazosin was inhibited by gomisin A in a concentration-dependent manner. Taken together our results suggest that gomisin A may bind to Pgp simultaneously with substrates and alters Pgp-substrate interaction.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B, Member 1/antagonists & inhibitors
- ATP Binding Cassette Transporter, Subfamily B, Member 1/genetics
- ATP Binding Cassette Transporter, Subfamily B, Member 1/metabolism
- Adenosine Triphosphatases/metabolism
- Adenosine Triphosphate/metabolism
- Anticarcinogenic Agents/chemistry
- Anticarcinogenic Agents/pharmacology
- Azides/pharmacology
- Blotting, Western/methods
- Cell Line, Tumor
- Cell Survival/drug effects
- Cyclooctanes/chemistry
- Cyclooctanes/pharmacology
- Dioxoles/chemistry
- Dioxoles/pharmacology
- Dose-Response Relationship, Drug
- Drug Resistance, Multiple/drug effects
- Drug Resistance, Neoplasm/drug effects
- Drug Synergism
- Humans
- Hydrolysis/drug effects
- Lignans/chemistry
- Lignans/pharmacology
- Prazosin/analogs & derivatives
- Prazosin/pharmacology
- RNA, Messenger/drug effects
- RNA, Messenger/physiology
- Reverse Transcriptase Polymerase Chain Reaction/methods
- Rhodamine 123/metabolism
- Vanadates/pharmacology
- Verapamil/pharmacology
- Vinblastine/pharmacology
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Affiliation(s)
- Chi-Keung Wan
- Bioactive Products Research Group, Department of Biology and Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S A R, China
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46
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Patočka J, Jakl J, Strunecká A. Expectations of biologically active compounds of the genus Magnolia in biomedicine. J Appl Biomed 2006. [DOI: 10.32725/jab.2006.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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47
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Hughes PJ, Brown G. 1Alpha,25-dihydroxyvitamin D3-mediated stimulation of steroid sulphatase activity in myeloid leukaemic cell lines requires VDRnuc-mediated activation of the RAS/RAF/ERK-MAP kinase signalling pathway. J Cell Biochem 2006; 98:590-617. [PMID: 16440327 DOI: 10.1002/jcb.20787] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
1Alpha,25-dihydroxyvitamin D(3) (1alpha,25(OH)(2)D(3)) stimulates the activity of steroid sulphatase (STS) in myeloid cells [Hughes et al., 2001, 2005]. This was attenuated by inhibitors of phospholipase D (PLD) (n-butanol, 2,3-diphosphoglyceric acid, C(2)-ceramide) and phosphatidate phosphohydrolase (PAP) (propranolol and chlorpromazine), but was unaffected by inhibitors of phospholipase C. The 1alpha,25(OH)(2)D(3)-induced STS activity was also attenuated by inhibitors of protein kinase Calpha and protein kinase Cdelta (Go 6976, HBDDE and rottlerin), but not by an inhibitor of protein kinase Cbeta (LY379196). Additionally, 1alpha,25(OH)(2)D(3)-induced STS activity was attenuated by inhibitors of RAS (manumycin A), RAF (GW5074), MEK (PD098059 and U1026) and JNK (SP600125), but not p38 (PD169316). 1alpha,25(OH)(2)D(3) produced a rapid and long lasting stimulation of the ERK-MAP kinase signalling cascade in HL60 myeloid leukaemic cells. This 'non-genomic' effect of 1alpha,25(OH)(2)D(3) blocked by pharmacological antagonists of nuclear vitamin D receptors (VDR(nuc)) and does not appear to require hetero-dimerisation with the retinoid-X receptor (RXR). Inhibitors of the Src tyrosine kinase (PP1), RAS (manumycin A), RAS-RAF interactions (sulindac sulphide and RAS inhibitory peptide), RAF (GW5074 or chloroquine), and protein kinase Calpha (HBDDE) abrogated the 1alpha,25(OH)(2)D(3)-stimulated increase in ERK-MAP kinase activity. Taken together, these results show that 1alpha,25(OH)(2)D(3)/VDR(nuc) activation of the RAS/RAF/ERK-MAP kinase signalling pathway plays an important role in augmenting STS activity in human myeloid leukaemic cell lines.
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Affiliation(s)
- Philip J Hughes
- Division of Immunity and Infection, The Medical School, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.
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48
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Hughes PJ, Zhao Y, Chandraratna RA, Brown G. Retinoid-mediated stimulation of steroid sulfatase activity in myeloid leukemic cell lines requires RARalpha and RXR and involves the phosphoinositide 3-kinase and ERK-MAP kinase pathways. J Cell Biochem 2006; 97:327-50. [PMID: 16178010 DOI: 10.1002/jcb.20579] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
All-trans retinoic acid and 9-cis-retinoic acid stimulate the activity of steroid sulfatase in HL60 acute myeloid leukemia cells in a concentration- and time-dependent manner. Neither of these 'natural retinoids' augmented steroid sulfatase activity in a HL60 sub-line that expresses a dominant-negative retinoic acid receptor alpha (RARalpha). Experiments with synthetic RAR and RXR agonists and antagonists suggest that RARalpha/RXR heterodimers play a role in the retinoid-stimulated increase in steroid sulfatase activity. The retinoid-driven increase in steroid sulfatase activity was attenuated by inhibition of phospholipase D (PLD), but not by inhibitors of phospholipase C. Experiments with inhibitors of protein kinase C (PKC) show that PKCalpha and PKCdelta play an important role in modulating the retinoid-stimulation of steroid sulfatase activity in HL60 cells. Furthermore, we show that pharmacological inhibition of the RAF-1 and ERK MAP kinases blocked the retinoid-stimulated increase in steroid sulfatase activity in HL60 cells and, by contrast, inhibition of the p38-MAP kinase or JNK-MAP kinase had no effect. Pharmacological inhibitors of the phosphatidylinositol 3-kinase, Akt, and PDK-1 also abrogated the retinoid-stimulated increase in steroid sulfatase activity in HL60 cells. These results show that crosstalk between the retinoid-stimulated genomic and non-genomic pathways is necessary to increase steroid sulfatase activity in HL60 cells.
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Affiliation(s)
- Philip J Hughes
- Division of Immunity and Infection, The Medical School, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom.
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49
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Ishigamori H, Hosokawa M, Kohno H, Tanaka T, Miyashita K, Takahashi K. Docosahexaenoic acid-containing phosphatidylethanolamine enhances HL-60 cell differentiation by regulation of c-jun and c-myc expression. Mol Cell Biochem 2006; 275:127-33. [PMID: 16335792 DOI: 10.1007/s11010-005-1090-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
18:1/docosahexaenoic acid (DHA)-containing phosphatidylethanolamine (PE) enhanced cell differentiation and growth inhibition of HL-60 induced by dibutyryl cAMP (dbcAMP) in a dose-dependent manner. The combined treatment of 200 microM dbcAMP and 50 microM 18:1/DHA-PE increased the NBT reducing activity, which is as an indicator of cell differentiation, to more than 75% from 40% of cells treated with 200 microM dbcAMP alone. In HL-60 cells treated with 50 microM 18:1/DHA-PE and 200 microM dbcAMP for 24 h, the expression level of c-jun mRNA and c-Jun protein were remarkably elevated compared to cells treated with dbcAMP alone. In contrast, there was no difference in the expression levels of c-fos mRNA and c-Fos protein between the combination of 18:1/DHA-PE + dbcAMP or dbcAMP alone. On the other hand, the combine treatment of 18:1/DHA-PE and dbcAMP markedly reduced the expression level of c-myc oncogene during 48 h incubation. The decreases of c-myc mRNA by 18:1/DHA-PE and/or dbcAMP was correlated with growth inhibition effect. Thus, 18:1/DHA-PE might enhance dbcAMP-induced HL-60 cell differentiation and growth inhibition by regulation of c-jun and c-myc mRNA and their products.
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Affiliation(s)
- Hideki Ishigamori
- Graduate School of Fisheries Sciences, Hokkaido University, Hokkaido, Japan
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50
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Lu Y, Sun C, Pan Y. A comparative study of upright counter-current chromatography and high-performance liquid chromatography for preparative isolation and purification of phenolic compounds fromMagnoliae officinalis. J Sep Sci 2006; 29:351-7. [PMID: 16544875 DOI: 10.1002/jssc.200500363] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A comparative study of preparative isolation and purification of the phenolic compounds magnolol and honokiol from the Chinese medicinal plant Magnoliae officinalis by upright counter-current chromatography (CCC) and semi-preparative HPLC is presented. The comparison reveals that with a two-phase solvent system composed of light petroleum (bp 60-90 degrees C)-ethyl acetate-tetrachloromethane-methanol-water (1:1:8:6:1, v/v), 1250 mg of honokiol and 520 mg of magnolol, with a purity of 98.7 and 99.5%, respectively, were obtained from 2.0 g of a crude sample of Magnoliae officinalis in a single CCC separation. In contrast, semi-preparative HPLC allowed isolation and purification of these two phenolic compounds with significantly lower productivity and higher solvent consumption. Structures of the purified compounds were identified by 1H and 13C NMR.
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Affiliation(s)
- Yanbin Lu
- Department of Chemistry, Zhejiang University, Hangzhou, China
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