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Paula S, Floruta S, Pajazetovic K, Sobota S, Almahmodi D. The molecular determinants of calcium ATPase inhibition by curcuminoids. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2024; 1866:184367. [PMID: 38969202 DOI: 10.1016/j.bbamem.2024.184367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 06/04/2024] [Accepted: 07/01/2024] [Indexed: 07/07/2024]
Abstract
The natural product curcumin and some of its analogs are known inhibitors of the transmembrane enzyme sarco/endoplasmic reticulum calcium ATPase (SERCA). Despite their widespread use, the curcuminoids' binding site in SERCA and their relevant interactions with the enzyme remain elusive. This lack of knowledge has prevented the development of curcuminoids into valuable experimental tools or into agents of therapeutic value. We used the crystal structures of SERCA in its E1 conformation in conjunction with computational tools such as docking and surface screens to determine the most likely curcumin binding site, along with key enzyme/inhibitor interactions. Additionally, we determined the inhibitory potencies and binding affinities for a small set of curcumin analogs. The predicted curcumin binding site is a narrow cleft in the transmembrane section of SERCA, close to the transmembrane/cytosol interface. In addition to pronounced complementarity in shape and hydrophobicity profiles between curcumin and the binding pocket, several hydrogen bonds were observed that were spread over the entire curcumin scaffold, involving residues on several transmembrane helices. Docking-predicted interactions were compatible with experimental observations for inhibitory potencies and binding affinities. Based on these findings, we propose an inhibition mechanism that assumes that the presence of a curcuminoid in the binding site arrests the catalytic cycle of SERCA by preventing it from converting from the E1 to the E2 conformation. This blockage of conformational change is accomplished by a combination of steric hinderance and hydrogen-bond-based cross-linking of transmembrane helices that require flexibility throughout the catalytic cycle.
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Affiliation(s)
- Stefan Paula
- Department of Chemistry, California State University Sacramento, 6000 J Street, Sacramento, CA 95819, USA.
| | - Sergiu Floruta
- Department of Chemistry, California State University Sacramento, 6000 J Street, Sacramento, CA 95819, USA
| | - Karim Pajazetovic
- Department of Chemistry, California State University Sacramento, 6000 J Street, Sacramento, CA 95819, USA
| | - Syndi Sobota
- Department of Chemistry, California State University Sacramento, 6000 J Street, Sacramento, CA 95819, USA
| | - Dina Almahmodi
- Department of Chemistry, California State University Sacramento, 6000 J Street, Sacramento, CA 95819, USA
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2
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Baharara H, Kesharwani P, Johnston TP, Sahebkar A. Therapeutic potential of phytochemicals for cystic fibrosis. Biofactors 2023; 49:984-1009. [PMID: 37191383 DOI: 10.1002/biof.1960] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 05/01/2023] [Indexed: 05/17/2023]
Abstract
The aim of this review was to review and discuss various phytochemicals that exhibit beneficial effects on mutated membrane channels, and hence, improve transmembrane conductance. These therapeutic phytochemicals may have the potential to decrease mortality and morbidity of CF patients. Four databases were searched using keywords. Relevant studies were identified, and related articles were separated. Google Scholar, as well as gray literature (i.e., information that is not produced by commercial publishers), were also checked for related articles to locate/identify additional studies. The relevant databases were searched a second time to ensure that recent studies were included. In conclusion, while curcumin, genistein, and resveratrol have demonstrated effectiveness in this regard, it should be emphasized that coumarins, quercetin, and other herbal medicines also have beneficial effects on transporter function, transmembrane conductivity, and overall channel activity. Additional in vitro and in vivo studies should be conducted on mutant CFTR to unequivocally define the mechanism by which phytochemicals alter transmembrane channel function/activity, since the results of the studies evaluated in this review have a high degree of heterogenicity and discrepancy. Finally, continued research be undertaken to clearly define the mechanism(s) of action and the therapeutic effects that therapeutic phytochemicals have on the symptoms observed in CF patients in an effort to reduce mortality and morbidity.
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Affiliation(s)
- Hamed Baharara
- Department of Clinical Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Prashant Kesharwani
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
- Center for Transdisciplinary Research, Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Science, Chennai, India
| | - Thomas P Johnston
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, Kansas City, Missouri, USA
| | - AmirHossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Hu T, Liu X, Gong X, Chen B, Tan S, Xu H, Pan A, Liang S, He Y, Zhou F. Multichannel Ca 2+ Generator for Synergistic Tumor Therapy via Intracellular Ca 2+ Overload and Chemotherapy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8012-8020. [PMID: 35715215 DOI: 10.1021/acs.langmuir.2c00794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Ca2+ overload has attracted an increasing attention due to its benefit of precise cancer therapy, but its efficacy is limited by the strong Ca2+ excretion of cancer cells. Moreover, monotherapy of Ca2+ overload usually fails to treat tumors satisfactorily. Herein, we develop a multifunctional nanosystem that could induce Ca2+ overload by multipathway and simultaneously produce chemotherapy for synergistic tumor therapy. The nanosystem (CaMSN@CUR) is prepared by synthesizing a Ca-doped mesoporous silica nanoparticle (CaMSN) followed by loading the anticancer drug curcumin (CUR). CaMSN serves as the basis Ca2+ generator to induce Ca2+ overload directly in the intracellular environment by acid-triggered Ca2+ release, while CUR could not only exhibit chemotherapy but also facilitate Ca2+ release from the endoplasmic reticulum to the cytoplasm and inhibit Ca2+ efflux out of cells to further enhance Ca2+ overload. The in vitro and in vivo results show that CaMSN@CUR could exhibit a remarkable cytotoxicity against 4T1 cells and significantly inhibit tumor growth in 4T1 tumor-bearing mice via the synergy of Ca2+ overload and CUR-mediated chemotherapy. It is expected that the designed CaMSN@CUR has a great potential for effective tumor therapy.
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Affiliation(s)
- Taishun Hu
- School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
| | - Xinli Liu
- School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
| | - Xiyu Gong
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China
| | - Botao Chen
- Department of Hepatobiliary Surgery, Hunan Provincial People's Hospital, The First-Affiliated Hospital of Hunan Normal University, Changsha 410005, Hunan, China
| | - Songwen Tan
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, Hunan, China
| | - Hui Xu
- Institute of Super-Microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, Changsha 410083, Hunan, China
| | - Anqiang Pan
- School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
| | - Shuquan Liang
- School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
| | - Yongju He
- School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
| | - Fangfang Zhou
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China
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4
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Wang X, Li Y, Jia F, Cui X, Pan Z, Wu Y. Boosting nutrient starvation-dominated cancer therapy through curcumin-augmented mitochondrial Ca 2+ overload and obatoclax-mediated autophagy inhibition as supported by a novel nano-modulator GO-Alg@CaP/CO. J Nanobiotechnology 2022; 20:225. [PMID: 35551609 PMCID: PMC9097046 DOI: 10.1186/s12951-022-01439-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 04/26/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND By hindering energy supply pathway for cancer cells, an alternative therapeutic strategy modality is put forward: tumor starvation therapy. And yet only in this blockade of glucose supply which is far from enough to result in sheer apoptosis of cancer cells. RESULTS In an effort to boost nutrient starvation-dominated cancer therapy, here a novel mitochondrial Ca2+ modulator Alg@CaP were tailor-made for the immobilization of Glucose oxidase for depriving the intra-tumoral glucose, followed by the loading of Curcumin to augment mitochondrial Ca2+ overload to maximize the therapeutic efficiency of cancer starvation therapy via mitochondrial dysfunctions. Also, autophagy inhibitors Obatoclax were synchronously incorporated in this nano-modulator to highlight autophagy inhibition. CONCLUSION Here, a promising complementary modality for the trebling additive efficacy of starvation therapy was described for cutting off the existing energy sources in starvation therapy through Curcumin-augmented mitochondrial Ca2+ overload and Obatoclax-mediated autophagy inhibition.
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Affiliation(s)
- Xuan Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, No. 11 First North Road, Zhongguancun, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Yunhao Li
- Department of General Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, People's Republic of China
| | - Fan Jia
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, No. 11 First North Road, Zhongguancun, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Xinyue Cui
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, No. 11 First North Road, Zhongguancun, Beijing, 100190, China
| | - Zian Pan
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, No. 11 First North Road, Zhongguancun, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Yan Wu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, No. 11 First North Road, Zhongguancun, Beijing, 100190, China. .,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
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5
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Ganassin R, da Silva VCM, Araujo VHS, Tavares GR, da Silva PB, Cáceres-Vélez PR, Porcel JEM, Rodrigues MC, Andreozzi P, Fernandes RP, Fonseca-Santos B, Moya S, Azevedo RB, Chorilli M, Muehlmann LA. Solid lipid nanoparticles loaded with curcumin: development and in vitro toxicity against CT26 cells. Nanomedicine (Lond) 2022; 17:167-179. [PMID: 35048742 DOI: 10.2217/nnm-2021-0229] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To develop a new curcumin carrier consisting of murumuru butter nanoparticles (SLN-Cs). Methods: A phase-inversion temperature method was used to produce SLN-Cs. The interaction of SLN-Cs with murine colon adenocarcinoma (CT26) cells in vitro was analyzed by confocal microscopy. Results: Stable SLN-Cs with a high curcumin-loading capacity were obtained. The SLN-Cs were more toxic to CT26 than free curcumin. Fluorescence microscopy images showed the SLN-Cs to be taken up by CT26 cells in vitro. Conclusion: These results indicate that SLN-Cs are suitable carriers of curcumin in aqueous media.
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Affiliation(s)
- Rayane Ganassin
- Laboratory of Nanoscience & Immunology, Faculty of Ceilandia, University of Brasilia, Brasilia/DF, 72220-900, Brazil.,Department of Genetics & Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia, 70910-900, Brazil
| | - Victor Carlos Mello da Silva
- Laboratory of Nanoscience & Immunology, Faculty of Ceilandia, University of Brasilia, Brasilia/DF, 72220-900, Brazil.,Department of Genetics & Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia, 70910-900, Brazil
| | - Victor Hugo Sousa Araujo
- Laboratory of Nanoscience & Immunology, Faculty of Ceilandia, University of Brasilia, Brasilia/DF, 72220-900, Brazil.,Department of Genetics & Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia, 70910-900, Brazil
| | - Giulia Rosa Tavares
- Laboratory of Nanoscience & Immunology, Faculty of Ceilandia, University of Brasilia, Brasilia/DF, 72220-900, Brazil.,Department of Genetics & Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia, 70910-900, Brazil
| | - Patrícia Bento da Silva
- Department of Genetics & Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia, 70910-900, Brazil
| | - Paolin Rocio Cáceres-Vélez
- Department of Genetics & Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia, 70910-900, Brazil.,Soft Matter Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), San Sebastian, Spain.,School of Biosciences, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Joaquin E Martínez Porcel
- Soft Matter Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), San Sebastian, Spain
| | - Mosar Corrêa Rodrigues
- Laboratory of Nanoscience & Immunology, Faculty of Ceilandia, University of Brasilia, Brasilia/DF, 72220-900, Brazil.,Department of Genetics & Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia, 70910-900, Brazil
| | - Patrizia Andreozzi
- Soft Matter Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), San Sebastian, Spain
| | - Richard Perosa Fernandes
- Laboratory of Thermal Analysis Ivo Giolitto, Chemical Institute, São Paulo State University São Paulo, Araraquara -SP, Brazil
| | | | - Sergio Moya
- Soft Matter Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), San Sebastian, Spain
| | - Ricardo Bentes Azevedo
- Department of Genetics & Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia, 70910-900, Brazil
| | - Marlus Chorilli
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), 14800-903, Araraquara, Brazil
| | - Luis Alexandre Muehlmann
- Laboratory of Nanoscience & Immunology, Faculty of Ceilandia, University of Brasilia, Brasilia/DF, 72220-900, Brazil.,Department of Genetics & Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia, 70910-900, Brazil
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6
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Chen X, Xu T, Zhu X, Chen L, Yang L, Wang S, Yu Z, Wang L, Zhang J, Zhou H. Lamellar Metal Oxide Based Nanoagent Realizing Intensive Interlamellar Ca 2+ Release and Hypoxia Relief for Enhanced Synergistic Therapy. ACS APPLIED BIO MATERIALS 2021; 4:7993-8003. [DOI: 10.1021/acsabm.1c00894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiaoqin Chen
- College of Chemistry and Chemical Engineering, Anhui University, No. 111 Jiulong Road, Hefei 230601, P. R. China
| | - Tianren Xu
- College of Chemistry and Chemical Engineering, Anhui University, No. 111 Jiulong Road, Hefei 230601, P. R. China
| | - Xiaojiao Zhu
- College of Chemistry and Chemical Engineering, Anhui University, No. 111 Jiulong Road, Hefei 230601, P. R. China
| | - Lei Chen
- College of Chemistry and Chemical Engineering, Anhui University, No. 111 Jiulong Road, Hefei 230601, P. R. China
| | - Li Yang
- College of Chemistry and Chemical Engineering, Anhui University, No. 111 Jiulong Road, Hefei 230601, P. R. China
| | - Shengnan Wang
- College of Chemistry and Chemical Engineering, Anhui University, No. 111 Jiulong Road, Hefei 230601, P. R. China
| | - Zhipeng Yu
- Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Lianke Wang
- Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Jie Zhang
- Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Hongping Zhou
- College of Chemistry and Chemical Engineering, Anhui University, No. 111 Jiulong Road, Hefei 230601, P. R. China
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7
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Zheng P, Ding B, Shi R, Jiang Z, Xu W, Li G, Ding J, Chen X. A Multichannel Ca 2+ Nanomodulator for Multilevel Mitochondrial Destruction-Mediated Cancer Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2007426. [PMID: 33675268 DOI: 10.1002/adma.202007426] [Citation(s) in RCA: 139] [Impact Index Per Article: 46.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/30/2020] [Indexed: 05/22/2023]
Abstract
Subcellular organelle-targeted nanoformulations for cancer theranostics are receiving increasing attention owing to their benefits of precise drug delivery, maximized therapeutic index, and reduced off-target side effects. Herein, a multichannel calcium ion (Ca2+ ) nanomodulator (CaNMCUR+CDDP ), i.e., a cisplatin (CDDP) and curcumin (CUR) co-incorporating calcium carbonate (CaCO3 ) nanoparticle, is prepared by a facile one-pot strategy in a sealed container with in situ synthesized polydopamine (PDA) as a template to enhance Ca2+ -overload-induced mitochondrial dysfunction in cancer therapy. After systemic administration, the PEGylated CaNMCUR+CDDP (PEG CaNMCUR+CDDP ) selectively accumulates in tumor tissues, enters tumor cells, and induces multilevel destruction of mitochondria by the combined effects of burst Ca2+ release, Ca2+ efflux inhibition by CUR, and chemotherapeutic CDDP, thereby observably boosting mitochondria-targeted tumor inhibition. Fluorescence imaging of CUR combined with photoacoustic imaging of PDA facilitates the visualization of the nanomodulator. The facile and practical design of this multichannel Ca2+ nanomodulator will contribute to the development of multimodal bioimaging-guided organelle-targeted cancer therapy in the future.
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Affiliation(s)
- Pan Zheng
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, P. R. China
- University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, P. R. China
| | - Binbin Ding
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, P. R. China
| | - Run Shi
- Faculty of Medicine, Ludwig-Maximilians-Universität München, Theresienstraße 39, D-80333, München, Germany
| | - Zhongyu Jiang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, P. R. China
| | - Weiguo Xu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, P. R. China
| | - Gao Li
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, P. R. China
- University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, P. R. China
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, P. R. China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, P. R. China
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8
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Peterková L, Kmoníčková E, Ruml T, Rimpelová S. Sarco/Endoplasmic Reticulum Calcium ATPase Inhibitors: Beyond Anticancer Perspective. J Med Chem 2020; 63:1937-1963. [PMID: 32030976 DOI: 10.1021/acs.jmedchem.9b01509] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The sarco/endoplasmic reticulum calcium ATPase (SERCA), which plays a key role in the maintenance of Ca2+ ion homeostasis, is an extensively studied enzyme, the inhibition of which has a considerable impact on cell life and death decision. To date, several SERCA inhibitors have been thoroughly studied and the most notable one, a derivative of the sesquiterpene lactone thapsigargin, is gradually approaching a clinical application. Meanwhile, new compounds with SERCA-inhibiting properties of natural, synthetic, or semisynthetic origin are being discovered and/or developed; some of these might also be suitable for the development of new drugs with improved performance. This review brings an up-to-date comprehensive overview of recently discovered compounds with the potential of SERCA inhibition, discusses their mechanism of action, and highlights their potential clinical applications, such as cancer treatment.
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Affiliation(s)
- Lucie Peterková
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague 6, Czech Republic
| | - Eva Kmoníčková
- Faculty of Medicine in Pilsen, Charles University, Alej Svobody 76, 323 00 Pilsen, Czech Republic
| | - Tomáš Ruml
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague 6, Czech Republic
| | - Silvie Rimpelová
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague 6, Czech Republic.,Faculty of Medicine in Pilsen, Charles University, Alej Svobody 76, 323 00 Pilsen, Czech Republic
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9
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Andrade JT, Fantini de Figueiredo G, Cruz LF, Eliza de Morais S, Souza CDF, Pinto FCH, Ferreira JMS, Araújo MGDF. Efficacy of curcumin in the treatment of experimental vulvovaginal candidiasis. Rev Iberoam Micol 2019; 36:192-199. [DOI: 10.1016/j.riam.2019.01.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 06/02/2018] [Accepted: 01/22/2019] [Indexed: 12/22/2022] Open
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10
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Tabeshpour J, Banaeeyeh S, Eisvand F, Sathyapalan T, Hashemzaei M, Sahebkar A. Effects of curcumin on ion channels and pumps: A review. IUBMB Life 2019; 71:812-820. [PMID: 31020791 DOI: 10.1002/iub.2054] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 04/06/2019] [Accepted: 04/10/2019] [Indexed: 12/14/2022]
Abstract
Curcumin, an orange-yellow lipophilic polyphenolic molecule, is the active component of Curcuma longa, which is extensively used as a spice in most of the Asian countries. This natural compound is able to interact with a large number of molecular structures like proteins, enzymes, lipids, DNA, RNA, transporter molecules, and ion channels. It has been reported to possess several biological effects such as antioxidant, anti-inflammatory, wound healing, antimicrobial, anticancer, antiangiogenic, antimutagenic, and antiplatelet aggregation properties. These beneficial effects of curcumin are because of its extraordinary chemical interactions such as extensive hydrogen and covalent bonding, metal chelation, and so on. Therefore, the aim of this review was to outline the evidence in which curcumin could affect different types of ion channels and ion channel-related diseases, and also to elucidate basic molecular mechanisms behind it. © 2019 IUBMB Life, 2019.
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Affiliation(s)
- Jamshid Tabeshpour
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sara Banaeeyeh
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farhad Eisvand
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Thozhukat Sathyapalan
- Department of Academic Diabetes, Endocrinology and Metabolism, Hull York Medical School, University of Hull, Hull, UK
| | - Mahmoud Hashemzaei
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zabol University of Medical Sciences, Zabol, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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11
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Xu L, Tong G, Song Q, Zhu C, Zhang H, Shi J, Zhang Z. Enhanced Intracellular Ca 2+ Nanogenerator for Tumor-Specific Synergistic Therapy via Disruption of Mitochondrial Ca 2+ Homeostasis and Photothermal Therapy. ACS NANO 2018; 12:6806-6818. [PMID: 29966081 DOI: 10.1021/acsnano.8b02034] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Breast cancer therapy has always been a hard but urgent issue. Disruption of mitochondrial Ca2+ homeostasis has been reported as an effective antitumor strategy, while how to contribute to mitochondrial Ca2+ overload effectively is a critical issue. To solve this issue, we designed and engineered a dual enhanced Ca2+ nanogenerator (DECaNG), which can induce elevation of intracellular Ca2+ through the following three ways: Calcium phosphate (CaP)-doped hollow mesoporous copper sulfide was the basic Ca2+ nanogenerator to generate Ca2+ directly and persistently in the lysosomes (low pH). Near-infrared light radiation (NIR, such as 808 nm laser) can accelerate Ca2+ generation from the basic Ca2+ nanogenerator by disturbing the crystal lattice of hollow mesoporous copper sulfide via NIR-induced heat. Curcumin can facilitate Ca2+ release from the endoplasmic reticulum to cytoplasm and inhibit expelling of Ca2+ in cytoplasm through the cytoplasmic membrane. The in vitro study showed that DECaNG could produce a large amount of Ca2+ directly and persistently to flow to mitochondria, leading to upregulation of Caspase-3, cytochrome c, and downregulation of Bcl-2 and ATP followed by cell apoptosis. In addition, DECaNG had an outstanding photothermal effect. Interestingly, it was found that DECaNG exerted a stronger photothermal effect at lower pH due to the super small nanoparticles effect, thus enhancing photothermal therapy. In the in vivo study, the nanoplatform had good tumor targeting and treatment efficacy via a combination of disruption of mitochondrial Ca2+ homeostasis and photothermal therapy. The metabolism of CaNG was sped up through disintegration of CaNG into smaller nanoparticles, reducing the retention time of the nanoplatform in vivo. Therefore, DECaNG can be a promising drug delivery system for breast cancer therapy.
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Affiliation(s)
- Lihua Xu
- School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , People's Republic of China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Henan Province , People's Republic of China
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province , Zhengzhou , China
| | - Guihua Tong
- School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , People's Republic of China
| | - Qiaoli Song
- School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , People's Republic of China
| | - Chunyu Zhu
- School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , People's Republic of China
| | - Hongling Zhang
- School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , People's Republic of China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Henan Province , People's Republic of China
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province , Zhengzhou , China
| | - Jinjin Shi
- School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , People's Republic of China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Henan Province , People's Republic of China
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province , Zhengzhou , China
| | - Zhenzhong Zhang
- School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , People's Republic of China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Henan Province , People's Republic of China
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province , Zhengzhou , China
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12
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Gonçalves C, Gomez JP, Même W, Rasolonjatovo B, Gosset D, Nedellec S, Hulin P, Huin C, Le Gall T, Montier T, Lehn P, Pichon C, Guégan P, Cheradame H, Midoux P. Curcumin/poly(2-methyl-2-oxazoline-b-tetrahydrofuran-b-2-methyl-2-oxazoline) formulation: An improved penetration and biological effect of curcumin in F508del-CFTR cell lines. Eur J Pharm Biopharm 2017; 117:168-181. [DOI: 10.1016/j.ejpb.2017.04.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 03/14/2017] [Accepted: 04/13/2017] [Indexed: 01/29/2023]
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13
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Dao TT, Sehgal P, Tung TT, Møller JV, Nielsen J, Palmgren M, Christensen SB, Fuglsang AT. Demethoxycurcumin Is A Potent Inhibitor of P-Type ATPases from Diverse Kingdoms of Life. PLoS One 2016; 11:e0163260. [PMID: 27644036 PMCID: PMC5028038 DOI: 10.1371/journal.pone.0163260] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 09/05/2016] [Indexed: 12/25/2022] Open
Abstract
P-type ATPases catalyze the active transport of cations and phospholipids across biological membranes. Members of this large family are involved in a range of fundamental cellular processes. To date, a substantial number of P-type ATPase inhibitors have been characterized, some of which are used as drugs. In this work a library of natural compounds was screened and we first identified curcuminoids as plasma membrane H+-ATPases inhibitors in plant and fungal cells. We also found that some of the commercial curcumins contain several curcuminoids. Three of these were purified and, among the curcuminoids, demethoxycurcumin was the most potent inhibitor of all tested P-type ATPases from fungal (Pma1p; H+-ATPase), plant (AHA2; H+-ATPase) and animal (SERCA; Ca2+-ATPase) cells. All three curcuminoids acted as non-competitive antagonist to ATP and hence may bind to a highly conserved allosteric site of these pumps. Future research on biological effects of commercial preparations of curcumin should consider the heterogeneity of the material.
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Affiliation(s)
- Trong Tuan Dao
- Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | - Pankaj Sehgal
- Department of Biomedicine, University of Aarhus, Aarhus, Denmark
| | - Truong Thanh Tung
- Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | | | - John Nielsen
- Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | - Michael Palmgren
- Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - Anja Thoe Fuglsang
- Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
- * E-mail:
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14
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Jankun J, Wyganowska-Świątkowska M, Dettlaff K, Jelińska A, Surdacka A, Wątróbska-Świetlikowska D, Skrzypczak-Jankun E. Determining whether curcumin degradation/condensation is actually bioactivation (Review). Int J Mol Med 2016; 37:1151-8. [PMID: 26985652 DOI: 10.3892/ijmm.2016.2524] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 02/24/2016] [Indexed: 11/05/2022] Open
Abstract
Curcumin has been shown to exert therapeutic or protective effects against a variety of diseases, such as cancer, pulmonary diseases, neurological, liver, metabolic, autoimmune, cardiovascular diseases and numerous other chronic ailments. Over 116 clinical studies on curcumin in humans were registered with the US National Institutes of Health in 2015. However, it is mystifying how curcumin can be so effective in the treatment of many diseases since it has very low water solubility and bioavailability. Furthermore, curcumin is not stable under various conditions; its degradation or condensation into different bioactive compounds may be responsible for its biological activities rather than curcumin itself. In this review, we provide evidence of curcumin degradation and condensation into different compounds which have or may have health benefits themselves. Literature reviews strongly suggest that these molecules contribute to the observed health benefits, rather than curcumin itself.
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Affiliation(s)
- Jerzy Jankun
- Urology Research Center, Department of Urology, College of Medicine, University of Toledo, Toledo, OH 43614, USA
| | | | - Katarzyna Dettlaff
- Department of Pharmaceutical Chemistry, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Ponań, Poland
| | - Anna Jelińska
- Department of Pharmaceutical Chemistry, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Ponań, Poland
| | - Anna Surdacka
- Department of Conservative Dentistry and Periodontology, Poznań University of Medical Sciences, 60-812 Poznan, Poland
| | | | - Ewa Skrzypczak-Jankun
- Urology Research Center, Department of Urology, College of Medicine, University of Toledo, Toledo, OH 43614, USA
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15
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Vargas-Medrano J, Sierra-Fonseca JA, Plenge-Tellechea LF. 1,2-Dichlorobenzene affects the formation of the phosphoenzyme stage during the catalytic cycle of the Ca(2+)-ATPase from sarcoplasmic reticulum. BMC BIOCHEMISTRY 2016; 17:5. [PMID: 26968444 PMCID: PMC4788898 DOI: 10.1186/s12858-016-0061-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 03/02/2016] [Indexed: 12/16/2022]
Abstract
BACKGROUND 1,2-Dichlorobenzene (1,2-DCB) is a benzene-derived molecule with two Cl atoms that is commonly utilized in the synthesis of pesticides. 1,2-DCB can be absorbed by living creatures and its effects on naturally-occurring enzymatic systems, including the effects on Ca(2+)-ATPases, have been poorly studied. Therefore, we aimed to study the effect of 1,2-DCB on the Ca(2+)-ATPase from sarcoplasmic reticulum (SERCA), a critical regulator of intracellular Ca(2+) concentration. RESULTS Concentrations of 0.05-0.2 mM of 1,2-DCB were able to stimulate the hydrolytic activity of SERCA in a medium-containing Ca(2+)-ionophore. At higher concentrations (0.25-0.75 mM), 1,2-DCB inhibited the ATP hydrolysis to ~80 %. Moreover, ATP hydrolysis and Ca(2+) uptake in a medium supported by K-oxalate showed that starting at 0.05 mM,1,2-DCB was able to uncouple the ratio of hydrolysis/Ca(2+) transported. The effect of this compound on the integrity of the SR membrane loaded with Ca(2+) remained unaffected. Finally, the analysis of phosphorylation of SERCA by [γ-(32)P]ATP, starting under different conditions at 0° or 25 °C showed a reduction in the phosphoenzyme levels by 1,2-DCB, mostly at 0 °C. CONCLUSIONS The temperature-dependent decreased levels of phosphoenzyme by 1,2-DCB could be due to the acceleration of the dephosphorylation mechanism - E2P · Ca2 state to E2 and Pi, which explains the uncoupling of the ATP hydrolysis from the Ca(2+) transport.
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Affiliation(s)
- Javier Vargas-Medrano
- Present address: Department of Biomedical Sciences, Center of Emphasis for Neurosciences, Texas Tech University Health Science Center, El Paso, TX, 79905, USA
| | - Jorge A Sierra-Fonseca
- Present address: Department of Biological Sciences, University of Texas at El Paso, El Paso, TX, 79968, USA
| | - Luis F Plenge-Tellechea
- Departamento de Ciencias Químico Biológicas, Laboratorio de Biología Molecular y Bioquímica (Edif. T-216), Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez, Plutarco Elías Calles #1210 Fovissste Chamizal, Ciudad Juárez, Chihuahua, C.P. 32310, Mexico.
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16
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Curcumin and its promise as an anticancer drug: An analysis of its anticancer and antifungal effects in cancer and associated complications from invasive fungal infections. Eur J Pharmacol 2016; 772:33-42. [DOI: 10.1016/j.ejphar.2015.12.038] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 12/16/2015] [Accepted: 12/22/2015] [Indexed: 01/26/2023]
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17
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Abstract
The recent FDA approval of two drugs to treat the basic defect in cystic fibrosis has given hope to patients and their families battling this devastating disease. Over many years, with heavy financial investment from Vertex Pharmaceuticals and the Cystic Fibrosis Foundation, pre-clinical evaluation of thousands of synthetic drugs resulted in the production of Kalydeco and Orkambi. Yet, despite the success of this endeavor, many other compounds have been proposed as therapeutic agents in the treatment of CF. Of note, several of these compounds are naturally occurring, and are present in spices from the grocery store and over the counter preparations in health food stores. In this short review, we look at three such compounds, genistein, curcumin, and resveratrol, and evaluate the scientific support for their use as therapeutic agents in the treatment of patients with CF.
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Affiliation(s)
- Isha Dey
- Department of Physiology and Biophysics, Chicago Medical School, North Chicago, Illinois, USA
| | - Kalpit Shah
- Department of Physiology and Biophysics, Chicago Medical School, North Chicago, Illinois, USA
| | - Neil A Bradbury
- Department of Physiology and Biophysics, Chicago Medical School, North Chicago, Illinois, USA
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18
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Kilinç E, Kaygisiz Z, Benek BS, Gümüştekin K. Effects and mechanisms of curcumin on the hemodynamic variablesof isolated perfused rat hearts. Turk J Med Sci 2016; 46:166-73. [PMID: 27511351 DOI: 10.3906/sag-1410-131] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 02/14/2015] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND/AIM There is no information on the dose-response relationship of curcumin on the hemodynamic variables of the heart at the organ level in isolated perfused rat hearts. We aimed to investigate the effects and mechanisms of curcumin on the hemodynamic variables of isolated perfused rat hearts. MATERIALS AND METHODS Rats were randomly divided into 9 groups. The isolated rat heart was retrogradely perfused with modified Krebs-Henseleit solution. After the stabilization period, each group was administered one of the following treatments for 25 min: saline, dimethyl sulfoxide, and curcumin (0.2 µM, 1 µM, and 5 µM); atropine (1 µM); atropine (1 µM) + curcumin (1 µM); L-NAME (100 µM); or L-NAME (100 µM) + curcumin (1 µM). Hemodynamic variables of the heart were measured. RESULTS Curcumin at dose of 1 µM decreased the heart rate (from 271 ± 11.1 to 200.4 ± 14.3 beats/min, P = 0.011) but increased end-diastolic pressure (from 7.0 ± 0.4 to 54.6 ± 7.9 mmHg, P = 0.0008). A dose of 5 µM curcumin caused a decrease in the developed pressure (from 87.58 ± 9.0 to 65.40 ± 7.0 mmHg, P = 0.047) but an increase in the end-diastolic pressure (from 6.8 ± 0.6 to 48.9 ± 7.7 mmHg, P = 0.005). Atropine (1 µM) reversed the effects of curcumin on the heart. CONCLUSION Our results suggest that curcumin produces dose-dependent negative chronotropic and inotropic effects in isolated perfused rat hearts.
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Affiliation(s)
- Erkan Kilinç
- Department of Physiology, Faculty of Medicine, Abant İzzet Baysal University, Bolu, Turkey
| | - Ziya Kaygisiz
- Department of Physiology, Faculty of Medicine, Eskişehir Osmangazi University, Eskişehir, Turkey
| | - Bedri Selim Benek
- Department of Physiology, Faculty of Medicine, Abant İzzet Baysal University, Bolu, Turkey
| | - Kenan Gümüştekin
- Department of Physiology, Faculty of Medicine, Abant İzzet Baysal University, Bolu, Turkey
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19
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Duan D, Doak AK, Nedyalkova L, Shoichet BK. Colloidal aggregation and the in vitro activity of traditional Chinese medicines. ACS Chem Biol 2015; 10:978-88. [PMID: 25606714 DOI: 10.1021/cb5009487] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Traditional Chinese Medicines (TCMs) have been the sole source of therapeutics in China for two millennia. In recent drug discovery efforts, purified components of TCM formulations have shown activity in many in vitro assays, raising concerns of promiscuity. Here, we investigated 14 bioactive small molecules isolated from TCMs for colloidal aggregation. At concentrations commonly used in cell-based or biochemical assay conditions, eight of these compounds formed particles detectable by dynamic light scattering and showed detergent-reversible inhibition against β-lactamase and malate dehydrogenase, two counter-screening enzymes. When three of these compounds were tested against their literature-reported molecular targets, they showed similar reversal of their inhibitory activity in the presence of detergent. For three of the most potent aggregators, contributions to promiscuity via oxidative cycling were investigated; addition of 1 mM DTT had no effect on their activity, which is inconsistent with an oxidative mechanism. TCMs are often active at micromolar concentrations; this study suggests that care must be taken to control for artifactual activity when seeking their primary targets. Implications for the formulation of these molecules are considered.
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Affiliation(s)
- Da Duan
- Department
of Pharmaceutical Chemistry, University of California, San Francisco, 1700 Fourth Street, San Francisco, California 94158-2550, United States
- Leslie
Dan Faculty of Pharmacy, Donnelly Center, University of Toronto, 144 College Street, Toronto, Ontario M5S3M2, Canada
| | - Allison K. Doak
- Department
of Pharmaceutical Chemistry, University of California, San Francisco, 1700 Fourth Street, San Francisco, California 94158-2550, United States
| | - Lyudmila Nedyalkova
- Leslie
Dan Faculty of Pharmacy, Donnelly Center, University of Toronto, 144 College Street, Toronto, Ontario M5S3M2, Canada
| | - Brian K. Shoichet
- Department
of Pharmaceutical Chemistry, University of California, San Francisco, 1700 Fourth Street, San Francisco, California 94158-2550, United States
- Leslie
Dan Faculty of Pharmacy, Donnelly Center, University of Toronto, 144 College Street, Toronto, Ontario M5S3M2, Canada
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20
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Hani U, Shivakumar HG, Srivastava A, Mahammed N, Thirumaleshwar S, kumar Varma NS, Vaghela R, Shinde CG, Gowrav MP. Design and Optimization of Curcumin–HPβCD Bioadhesive Vaginal Tablets by 23 Factorial Design: In Vitro and In Vivo Evaluation. J Pharm Innov 2014. [DOI: 10.1007/s12247-014-9203-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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21
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Cao A, Li Q, Yin P, Dong Y, Shi H, Wang L, Ji G, Xie J, Wu D. Curcumin induces apoptosis in human gastric carcinoma AGS cells and colon carcinoma HT-29 cells through mitochondrial dysfunction and endoplasmic reticulum stress. Apoptosis 2014; 18:1391-1402. [PMID: 23881281 DOI: 10.1007/s10495-013-0871-1] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In the present study, we investigate the effect of curcumin, a major active component isolated from rhizomes of Curcuma longa, on the cytotoxicity of three human carcinoma cell lines (AGS, HT-29 and MGC803) in gastrointestinal tract and a normal gastric epithelial cell line GES-1, and the mechanism of curcumin-induced apoptosis. The results indicated that curcumin inhibited the gastrointestinal carcinoma cell growth in a dose-dependent manner and cytotoxicity was more towards the gastric carcinoma cell AGS and colon carcinoma cell HT-29 compared to normal gastric cell GES-1, and increased externalization of phosphatidylserine residue was observed by Annexin V/PI staining in the two cell lines. Treatment of AGS and HT-29 cells with curcumin enhanced the cleavage of procaspase-3, -7, -8 and -9. Meanwhile, curcumin induced endoplasmic reticulum (ER) stress and mitochondrial dysfunction as evidenced by up-regulation of CCAAT/enhancer binding protein homologous protein (CHOP), phosphorylation of JNK and down-regulation of SERCA2ATPase, release of cytochrome c, decrease of Bcl-2 and reduction of mitochondrial membrane potential in both AGS and HT-29 cells. Overexpression of bax, total JNK, phospho-FADD and total FADD were also observed in curcumin-treated HT-29 cells. Moreover, curcumin decreased cytosolic and ER Ca(2+), but increased mitochondrial Ca(2+) in the two cell lines. 2-Aminoethoxydiphenyl borate, an antagonist of inositol 1, 4, 5-triphosphate receptor, partly blocked curcumin-induced cytosolic Ca(2+) decrease in AGS and HT-29 cells. Additionally, carbonyl cyanide m-chlorophenylhydrazone, an inhibitor of mitochondrial Ca(2+) uptake, reversed curcumin-triggered AGS and HT-29 cells growth inhibition. siRNA to CHOP markedly reduced curcumin-induced apoptosis. These results suggest that curcumin can impact on ER stress and mitochondria functional pathways in AGS and HT-29 cells, death receptor pathway was also involved in curcumin-treated HT-29 cells, thus identifying specific well-defined molecular mechanisms that may be targeted by therapeutic strategies.
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Affiliation(s)
- Aili Cao
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Qi Li
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Peihao Yin
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Yang Dong
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Hailian Shi
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Li Wang
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Guang Ji
- Institute of Digestive Diseases, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Jianqun Xie
- Institute of Digestive Diseases, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China.
| | - Dazheng Wu
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China. .,Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China.
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22
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Abstract
The putative applications of poly-, oligo- and mono-oxometalates in biochemistry, biology, pharmacology and medicine are rapidly attracting interest. In particular, these compounds may act as potent ion pump inhibitors and have the potential to play a role in the treatment of e.g. ulcers, cancer and ischemic heart disease. However, the mechanism of action is not completely understood in most cases, and even remains largely unknown in other cases. In the present review we discuss the most recent insights into the interaction between mono- and polyoxometalate ions with ion pumps, with particular focus on the interaction of decavanadate with Ca(2+)-ATPase. We also compare the proposed mode of action with those of established ion pump inhibitors which are currently in therapeutic use. Of the 18 classes of compounds which are known to act as ion pump inhibitors, the complete mechanism of inhibition is only known for a handful. It has, however, been established that most ion pump inhibitors bind mainly to the E2 ion pump conformation within the membrane domain from the extracellular side and block the cation release. Polyoxometalates such as decavanadate, in contrast, interact with Ca(2+)-ATPase near the nucleotide binding site domain or at a pocket involving several cytoplasmic domains, and therefore need to cross through the membrane bilayer. In contrast to monomeric vanadate, which only binds to the E2 conformation, decavanadate binds to all protein conformations, i.e. E1, E1P, E2 and E2P. Moreover, the specific interaction of decavanadate with sarcoplasmic reticulum Ca(2+)-ATPase has been shown to be non-competitive with respect to ATP and induces protein cysteine oxidation with concomitant vanadium reduction which might explain the high inhibitory capacity of V10 (IC50 = 15 μM) which is quite similar to the majority of the established therapeutic drugs.
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23
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Antoine F, Girard D. Mechanisms involved in curcumin-induced human neutrophil apoptosis: Evidence that curcumin activates the endoplasmic reticulum stress-induced cell apoptosis pathway. SAGE Open Med 2013; 1:2050312113488104. [PMID: 26770672 PMCID: PMC4687759 DOI: 10.1177/2050312113488104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Curcumin was previously reported to accelerate neutrophil apoptosis, but the
mechanism is unclear. Herein, we confirmed that curcumin induces human
neutrophil apoptosis as assessed by cytology and by increase in the cell surface
expression of annexin-V and CD16 shedding. Curcumin activated caspase-3 and the
cleavage of the two cytoskeletal proteins lamin B1 and vimentin. In
addition, curcumin activated protein kinase RNA-like endoplasmic reticulum
kinase and eukaryotic initiation factor 2 alpha and reduced de novo protein
synthesis and the protein expression of the two chaperone proteins, HSP70 and
HSP90. We conclude that curcumin acts as an endoplasmic reticulum stressor in
human neutrophils. The ability of curcumin to activate the endoplasmic reticulum
stress-induced cell apoptotic pathway is part of its mode of action in primary
cells like mature neutrophils.
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Affiliation(s)
- Francis Antoine
- Laboratoire de recherche en inflammation et physiologie des granulocytes, INRS-Institut Armand-Frappier, Université du Québec, Laval, QC, Canada
| | - Denis Girard
- Laboratoire de recherche en inflammation et physiologie des granulocytes, INRS-Institut Armand-Frappier, Université du Québec, Laval, QC, Canada
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24
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Soler F, Asensio MC, Fernández-Belda F. Inhibition of the intracellular Ca(2+) transporter SERCA (Sarco-Endoplasmic Reticulum Ca(2+)-ATPase) by the natural polyphenol epigallocatechin-3-gallate. J Bioenerg Biomembr 2012; 44:597-605. [PMID: 22851007 DOI: 10.1007/s10863-012-9462-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Accepted: 07/08/2012] [Indexed: 11/26/2022]
Abstract
The use of a microsomal preparation from skeletal muscle revealed that both Ca(2+) transport and Ca(2+)-dependent ATP hydrolysis linked to Sarco-Endoplasmic Reticulum Ca(2+)-ATPase are inhibited by epigallocatechin-3-gallate (EGCG). A half-maximal effect was achieved at approx. 12 μM. The presence of the galloyl group was essential for the inhibitory effect of the catechin. The relative inhibition of the Ca(2+)-ATPase activity decreased when the Ca(2+) concentration was raised but not when the ATP concentration was elevated. Data on the catalytic cycle indicated inhibition of maximal Ca(2+) binding and a decrease in Ca(2+) binding affinity when measured in the absence of ATP. Moreover, the addition of ATP to samples in the presence of EGCG and Ca(2+) led to an early increase in phosphoenzyme followed by a time-dependent decay that was faster when the drug concentration was raised. However, phosphorylation following the addition of ATP plus Ca(2+) led to a slow rate of phosphoenzyme accumulation that was also dependent on EGCG concentration. The results are consistent with retention of the transporter conformation in the Ca(2+)-free state, thus impeding Ca(2+) binding and therefore the subsequent steps when ATP is added to trigger the Ca(2+) transport process. Furthermore, phosphorylation by inorganic phosphate in the absence of Ca(2+) was partially inhibited by EGCG, suggesting alteration of the native Ca(2+)-free conformation at the catalytic site.
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Affiliation(s)
- Fernando Soler
- Departamento de Bioquímica y Biología Molecular A, Universidad de Murcia, Campus de Espinardo, Murcia, Spain
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25
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de Meis L. How enzymes handle the energy derived from the cleavage of high-energy phosphate compounds. J Biol Chem 2012; 287:16987-17005. [PMID: 22427658 PMCID: PMC3366780 DOI: 10.1074/jbc.x112.363200] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Leopoldo de Meis
- Instituto de Bioquímica Médica, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil.
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26
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Khan N, Shreaz S, Bhatia R, Ahmad SI, Muralidhar S, Manzoor N, Khan LA. Anticandidal activity of curcumin and methyl cinnamaldehyde. Fitoterapia 2011; 83:434-40. [PMID: 22178679 DOI: 10.1016/j.fitote.2011.12.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2011] [Revised: 11/29/2011] [Accepted: 12/01/2011] [Indexed: 11/18/2022]
Abstract
Cinnamaldehyde, its derivatives and curcumin are reported to have strong antifungal activity. In this work we report and compare anticandidal activity of curcumin (CUR) and α-methyl cinnamaldehyde (MCD) against 38 strains of Candida (3; standard, fluconazole sensitive, 24; clinical, fluconazole sensitive, 11; clinical, fluconazole resistant). The minimum inhibitory concentrations (MIC₉₀) of CUR ranged from 250 to 650 μg/ml for sensitive strains and from 250 to 500 μg/ml for resistant strains. MIC₉₀ of MCD varied between 100 and 250 μg/ml and 100-200 μg/ml for sensitive and resistant strains, respectively. Higher activity of MCD as compared to CUR was further reinforced by spot assays and growth curve studies. At their respective MIC₉₀ values, in the presence of glucose, average inhibition of H+-efflux caused by CUR and MCD against standard, clinical and resistant isolates was 24%, 31%, 32% and 54%, 52%, 54%, respectively. Inhibition of H+-extrusion leads to intracellular acidification and cell death, average pHi for control, CUR and MCD exposed cells was 6.68, 6.39 and 6.20, respectively. Scanning electron micrographs of treated cells show more extensive damage in case of MCD. Haemolytic activity of CUR and MCD at their highest MIC was 11.45% and 13.00%, respectively as against 20% shown by fluconazole at typical MIC of 30 μg/ml. In conclusion, this study shows significant anticandidal activity of CUR and MCD against both azole-resistant and sensitive clinical isolates, MCD is found to be more effective.
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Affiliation(s)
- Neelofar Khan
- Department of Biosciences, Jamia Millia Islamia, New Delhi-110025, India
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27
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Seguin SP, Evans CW, Nebane-Akah M, McKellip S, Ananthan S, Tower NA, Sosa M, Rasmussen L, White EL, Maki BE, Matharu DS, Golden JE, Aubé J, Brodsky JL, Noah JW. High-throughput screening identifies a bisphenol inhibitor of SV40 large T antigen ATPase activity. ACTA ACUST UNITED AC 2011; 17:194-203. [PMID: 21948801 DOI: 10.1177/1087057111421630] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The authors conducted a high-throughput screening campaign for inhibitors of SV40 large T antigen ATPase activity to identify candidate antivirals that target the replication of polyomaviruses. The primary assay was adapted to 1536-well microplates and used to screen the National Institutes of Health Molecular Libraries Probe Centers Network library of 306 015 compounds. The primary screen had an Z value of ~0.68, signal/background = 3, and a high (5%) DMSO tolerance. Two counterscreens and two secondary assays were used to prioritize hits by EC(50), cytotoxicity, target specificity, and off-target effects. Hits that inhibited ATPase activity by >44% in the primary screen were tested in dose-response efficacy and eukaryotic cytotoxicity assays. After evaluation of hit cytotoxicity, drug likeness, promiscuity, and target specificity, three compounds were chosen for chemical optimization. Chemical optimization identified a class of bisphenols as the most effective biochemical inhibitors. Bisphenol A inhibited SV40 large T antigen ATPase activity with an IC(50) of 41 µM in the primary assay and 6.2 µM in a cytoprotection assay. This compound class is suitable as probes for biochemical investigation of large T antigen ATPase activity, but because of their cytotoxicity, further optimization is necessary for their use in studying polyomavirus replication in vivo.
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Affiliation(s)
- Sandlin P Seguin
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, USA
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Das J, Pany S, Panchal S, Majhi A, Rahman GM. Binding of isoxazole and pyrazole derivatives of curcumin with the activator binding domain of novel protein kinase C. Bioorg Med Chem 2011; 19:6196-202. [PMID: 21975067 DOI: 10.1016/j.bmc.2011.09.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Accepted: 09/08/2011] [Indexed: 11/26/2022]
Abstract
The protein kinase C (PKC) family of serine/threonine kinases is an attractive drug target because of its involvement in the regulation of various cellular functions, including cell growth, differentiation, metabolism, and apoptosis. The endogenous PKC activator diacylglycerol contains two long carbon chains, which are attached to the glycerol moiety via ester linkage. Natural product curcumin (1), the active constituent of Curcuma L., contains two carbonyl and two hydroxyl groups. It modulates PKC activity and binds to the activator binding site (Majhi et al., Bioorg. Med. Chem.2010, 18, 1591). To investigate the role of the carbonyl and hydroxyl groups of curcumin in PKC binding and to develop curcumin derivatives as effective PKC modulators, we synthesized several isoxazole and pyrazole derivatives of curcumin (2-6), characterized their absorption and fluorescence properties, and studied their interaction with the activator-binding second cysteine-rich C1B subdomain of PKCδ, PKCε and PKCθ. The EC(50)s of the curcumin derivatives for protein fluorescence quenching varied in the range of 3-25 μM. All the derivatives showed higher binding with the PKCθC1B compared with PKCδC1B and PKCεC1B. Fluorescence emission maxima of 2-5 were blue shifted in the presence of the C1B domains, confirming their binding to the protein. Molecular docking revealed that hydroxyl, carbonyl and pyrazole ring of curcumin (1), pyrazole (2), and isoxazole (4) derivatives form hydrogen bonds with the protein residues. The present result shows that isoxazole and pyrazole derivatives bind to the activator binding site of novel PKCs and both carbonyl and hydroxy groups of curcumin play roles in the binding process, depending on the nature of curcumin derivative and the PKC isotype used.
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Affiliation(s)
- Joydip Das
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204, United States.
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29
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Neelofar K, Shreaz S, Rimple B, Muralidhar S, Nikhat M, Khan LA. Curcumin as a promising anticandidal of clinical interest. Can J Microbiol 2011; 57:204-10. [PMID: 21358761 DOI: 10.1139/w10-117] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Curcumin, an important Asian spice, is part of many Indian food preparations. This work evaluates the antifungal activity of curcumin against 14 strains of Candida (10 clinical and 4 standard). Curcumin displayed antifungal properties against all tested Candida strains, with minimum inhibitory concentrations (MICs) varying from 250 to 2000 µg·mL⁻¹. The in vitro effect of curcumin on growth, sterol content, proteinase secretion, and H+ extrusion by plasma membrane ATPase was investigated for 2 standard strains Candida albicans ATCC 10261 and Candida glabrata ATCC 90030 and compared with the effect of fluconazole. At MIC, curcumin inhibited H+ extrusion in 2 species of Candida by 42% and 32% in the absence of glucose and by 28% and 18% in the presence of glucose. Respective inhibition of H+ extrusion caused by the MIC of fluconazole was 85% and 89% in the absence of glucose and 61% and 66% in its presence. Ergosterol content decreased by 70% and 53% for the 2 strains following exposure to curcumin at MIC; comparative values for fluconazole at MIC were 93% and 98%. Curcumin and fluconazole decreased proteinase secretion by 49% and 53%, respectively, in C. albicans and by 39% and 46%, respectively, in C. glabrata. In conclusion, curcumin is found to be active against all tested clinical and standard strains but is less effective than fluconazole. Antifungal activity of curcumin might be originating from alteration of membrane-associated properties of ATPase activity, ergosterol biosynthesis, and proteinase secretion.
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Affiliation(s)
- K Neelofar
- Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
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30
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Mahmmoud YA. Curcumin is a lipid dependent inhibitor of the Na,K-ATPase that likely interacts at the protein-lipid interface. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2011; 1808:466-73. [DOI: 10.1016/j.bbamem.2010.09.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2010] [Revised: 09/21/2010] [Accepted: 09/27/2010] [Indexed: 10/19/2022]
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Mata AM, Sepulveda MR. Plasma membrane Ca 2+-ATPases in the nervous system during development and ageing. World J Biol Chem 2010; 1:229-34. [PMID: 21537478 PMCID: PMC3083968 DOI: 10.4331/wjbc.v1.i7.229] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2010] [Revised: 07/01/2010] [Accepted: 07/08/2010] [Indexed: 02/05/2023] Open
Abstract
Calcium signaling is used by neurons to control a variety of functions, including cellular differentiation, synaptic maturation, neurotransmitter release, intracellular signaling and cell death. This review focuses on one of the most important Ca2+ regulators in the cell, the plasma membrane Ca2+-ATPase (PMCA), which has a high affinity for Ca2+ and is widely expressed in brain. The ontogeny of PMCA isoforms, linked to specific requirements of Ca2+ during development of different brain areas, is addressed, as well as their function in the adult tissue. This is based on the high diversity of variants in the PMCA family in brain, which show particular kinetic differences possibly related to specific localizations and functions of the cell. Conversely, alterations in the activity of PMCAs could lead to changes in Ca2+ homeostasis and, consequently, to neural dysfunction. The involvement of PMCA isoforms in certain neuropathologies and in brain ageing is also discussed.
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Affiliation(s)
- Ana M Mata
- Ana M Mata, M Rosario Sepulveda, Department of Biochemistry and Molecular Biology and Genetics, Faculty of Sciences, University of Extremadura, 06006 Badajoz, Spain
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Majhi A, Rahman GM, Panchal S, Das J. Binding of curcumin and its long chain derivatives to the activator binding domain of novel protein kinase C. Bioorg Med Chem 2010; 18:1591-8. [PMID: 20100661 PMCID: PMC2843403 DOI: 10.1016/j.bmc.2009.12.075] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2009] [Revised: 12/24/2009] [Accepted: 12/31/2009] [Indexed: 01/08/2023]
Abstract
Protein kinase C (PKC) is a family of serine/threonine kinases that play a central role in cellular signal transduction. The second messenger diacylglycerol having two long carbon chains acts as the endogenous ligand for the PKCs. Polyphenol curcumin, the active constituent of Curcuma longa is an anti-cancer agent and modulates PKC activity. To develop curcumin derivatives as effective PKC activators, we synthesized several long chain derivatives of curcumin, characterized their absorption and fluorescence properties and studied their interaction with the activator binding second cysteine-rich C1B subdomain of PKCdelta, PKCepsilon and PKCtheta. Curcumin (1) and its C16 long chain analog (4) quenched the intrinsic fluorescence of PKCdeltaC1B, PKCepsilonC1B and PKCthetaC1B in a manner similar to that of PKC activator 12-O-tetradecanoylphorbol 13-acetate (TPA). The EC(50)s of the curcumin derivatives for fluorescence quenching varied in the range of 4-11 microM, whereas, EC(50)s for TPA varied in the range of 3-6 microM. Fluorescence emission maxima of 1 and 4 were blue shifted and the fluorescence anisotropy values were increased in the presence of the C1B domains in a manner similar to that shown by the fluorescent analog of TPA, sapintoxin-D, confirming that they were bound to the proteins. Molecular docking of 1 and 4 with novel PKC C1B revealed that both the molecules form hydrogen bonds with the protein residues. The present result shows that curcumin and its long chain derivatives bind to the C1B subdomain of novel PKCs and can be further modified structurally to improve its binding and activity.
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Affiliation(s)
- Anjoy Majhi
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204
| | - Ghazi M. Rahman
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204
| | - Shyam Panchal
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204
| | - Joydip Das
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204
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Abstract
Since 1900 bc, several therapeutic activities have been attributed to the rhizomes of the plant Curcuma longa for a variety of diseases, including liver disorders. Curcumin, the main active compound obtained from this plant, was first isolated two centuries ago and its structure as diferuloylmethane was determined in 1910. Curcumin has shown anti-inflammatory, anti-oxidant, antifungal, antibacterial and anticancer activities. The pharmacological properties of curcumin were reviewed recently and focused mainly on its anticancer properties. However, its beneficial activity on liver diseases (known centuries ago, and demonstrated recently utilizing animal models) has not being reviewed in depth until now. The curcumin ability to inhibit several factors like nuclear factor-kappaB, which modulates several pro-inflammatory and profibrotic cytokines as well as its anti-oxidant properties, provide a rational molecular basis to use it in hepatic disorders. Curcumin attenuates liver injury induced by ethanol, thioacetamide, iron overdose, cholestasis and acute, subchronic and chronic carbon tetrachloride (CCl(4)) intoxication; moreover, it reverses CCl(4) cirrhosis to some extent. Unfortunately, the number of studies of curcumin on liver diseases is still very low and investigations in this area must be encouraged because hepatic disorders constitute one of the main causes of worldwide mortality.
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Affiliation(s)
- Yadira Rivera-Espinoza
- Departamento de Graduados e Investigación en Alimentos, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Carpio y Plan de Ayala, México City, México
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Wongcharoen W, Phrommintikul A. The protective role of curcumin in cardiovascular diseases. Int J Cardiol 2009; 133:145-51. [PMID: 19233493 DOI: 10.1016/j.ijcard.2009.01.073] [Citation(s) in RCA: 190] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2008] [Revised: 12/26/2008] [Accepted: 01/26/2009] [Indexed: 02/08/2023]
Abstract
Curcumin (diferuloylmethane) is a polyphenol responsible for the yellow color of the curry spice turmeric. It has been used in a variety of diseases in traditional medicine. Modern scientific research has demonstrated its anti-inflammatory, anti-oxidant, anti-carcinogenic, anti-thrombotic, and cardiovascular protective effects. In this review, we focused mainly on the effects of curcumin on the cardiovascular system. The antioxidant effects of curcumin have been shown to attenuate adriamycin-induced cardiotoxicity and may prevent diabetic cardiovascular complications. The anti-thrombotic, anti-proliferative, and anti-inflammatory effects of curcumin and the effect of curcumin in decreasing the serum cholesterol level may protect against the pathological changes occurring with atherosclerosis. The p300-HAT inhibitory effects of curcumin have been demonstrated to ameliorate the development of cardiac hypertrophy and heart failure in animal models. The inflammatory effects of curcumin may have the possibility of preventing atrial arrhythmias and the possible effect of curcumin for correcting the Ca(2+) homeostasis may play a role in the prevention of some ventricular arrhythmias. The preclinical studies from animal to clinical data in human are discussed.
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Affiliation(s)
- Wanwarang Wongcharoen
- Department of Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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35
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Sharma D, Sethi P, Hussain E, Singh R. Curcumin counteracts the aluminium-induced ageing-related alterations in oxidative stress, Na+, K+ ATPase and protein kinase C in adult and old rat brain regions. Biogerontology 2008; 10:489-502. [DOI: 10.1007/s10522-008-9195-x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2008] [Accepted: 10/28/2008] [Indexed: 12/23/2022]
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36
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Bakhshi J, Weinstein L, Poksay KS, Nishinaga B, Bredesen DE, Rao RV. Coupling endoplasmic reticulum stress to the cell death program in mouse melanoma cells: effect of curcumin. Apoptosis 2008; 13:904-14. [PMID: 18493855 DOI: 10.1007/s10495-008-0221-x] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The microenvironment of cancerous cells includes endoplasmic reticulum (ER) stress the resistance to which is required for the survival and growth of tumors. Acute ER stress triggers the induction of a family of ER stress proteins that promotes survival and/or growth of the cancer cells, and also confers resistance to radiation and chemotherapy. Prolonged or severe ER stress, however, may ultimately overwhelm the cellular protective mechanisms, triggering cell death through specific programmed cell death (pcd) pathways. Thus, downregulation of the protective stress proteins may offer a new therapeutic approach to cancer treatment. In this regard, recent reports have demonstrated the roles of the phytochemical curcumin in the inhibition of proteasomal activity and triggering the accumulation of cytosolic Ca(2+) by inhibiting the Ca(2+)-ATPase pump, both of which enhance ER stress. Using a mouse melanoma cell line, we investigated the possibility that curcumin may trigger ER stress leading to programmed cell death. Our studies demonstrate that curcumin triggers ER stress and the activation of specific cell death pathways that feature caspase cleavage and activation, p23 cleavage, and downregulation of the anti-apoptotic Mcl-1 protein.
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Affiliation(s)
- Jason Bakhshi
- Terra Linda High School, 320 Nova Albion Way, San Rafael, CA 94903, USA
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37
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Reuter S, Eifes S, Dicato M, Aggarwal BB, Diederich M. Modulation of anti-apoptotic and survival pathways by curcumin as a strategy to induce apoptosis in cancer cells. Biochem Pharmacol 2008; 76:1340-51. [PMID: 18755156 DOI: 10.1016/j.bcp.2008.07.031] [Citation(s) in RCA: 213] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2008] [Revised: 07/15/2008] [Accepted: 07/16/2008] [Indexed: 02/07/2023]
Abstract
Apoptosis is a highly regulated mechanism by which cells undergo cell death in an active way. As one of the most challenging tasks concerning cancer is to induce apoptosis in malignant cells, researchers increasingly focus on natural products to modulate apoptotic signaling pathways. Curcumin, a natural compound isolated from the plant Curcuma longa, has chemopreventive properties, which are mainly due to its ability to arrest cell cycle and to induce apoptosis. This article reviews the main effects of curcumin on the different apoptotic signaling pathways involved in curcumin-induced apoptosis of cancer cells, including the intrinsic and extrinsic apoptosis pathways, the NF-kappaB-mediated pathway as well as the PI3K/Akt signaling pathway. This review also focuses on the sensitization of cells to TRAIL-induced apoptosis after curcumin treatment and shows that curcumin enhances the capacity to induce cell death of different chemotherapeutical drugs.
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Affiliation(s)
- Simone Reuter
- Laboratoire de Biologie Moléculaire et Cellulaire du Cancer, Hôpital Kirchberg, 9 rue Edward Steichen, L-2540 Luxembourg, Luxembourg
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38
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Mahmmoud YA. Capsaicin stimulates uncoupled ATP hydrolysis by the sarcoplasmic reticulum calcium pump. J Biol Chem 2008; 283:21418-26. [PMID: 18539598 DOI: 10.1074/jbc.m803654200] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
In muscle cells the sarcoplasmic reticulum (SR) Ca(2+)-ATPase (SERCA) couples the free energy of ATP hydrolysis to pump Ca(2+) ions from the cytoplasm to the SR lumen. In addition, SERCA plays a key role in non-shivering thermogenesis through uncoupled reactions, where ATP hydrolysis takes place without active Ca(2+) translocation. Capsaicin (CPS) is a naturally occurring vanilloid, the consumption of which is linked with increased metabolic rate and core body temperature. Here we document the stimulation by CPS of the Ca(2+)-dependent ATP hydrolysis by SERCA without effects on Ca(2+) accumulation. The stimulation by CPS was significantly dependent on the presence of a Ca(2+) gradient across the SR membrane. ATP activation assays showed that the drug reduced the nucleotide affinity at the catalytic site, whereas the affinity at the regulatory site increased. Several biochemical analyses indicated that CPS stabilizes an ADP-insensitive E(2)P-related conformation that dephosphorylates at a higher rate than the control enzyme. Under conditions where uncoupled SERCA was specifically inhibited by the treatment with fluoride, low temperatures, or dimethyl sulfoxide, CPS had no stimulatory effect on ATP hydrolysis by SERCA. It is concluded that CPS stabilizes a SERCA sub-conformation where Ca(2+) is released from the phosphorylated intermediate to the cytoplasm instead of the SR lumen, increasing ATP hydrolysis not coupled with Ca(2+) transport. To the best of our knowledge CPS is the first natural drug that augments uncoupled SERCA, presumably resulting in thermogenesis. The role of CPS as a SERCA modulator is discussed.
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Affiliation(s)
- Yasser A Mahmmoud
- Institute of Physiology and Biophysics, University of Aarhus, Ole Worms Alle 1185, Aarhus C, Denmark.
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39
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Abstract
Curcumin (diferuloylmethane) is an orange-yellow component of turmeric (Curcuma longa), a spice often found in curry powder. In recent years, considerable interest has been focused on curcumin due to its use to treat a wide variety of disorders without any side effects. It is one of the major curcuminoids of turmeric, which impart its characteristic yellow colour. It was used in ancient times on the Indian subcontinent to treat various illnesses such as rheumatism, body ache, skin diseases, intestinal worms, diarrhoea, intermittent fevers, hepatic disorders, biliousness, urinary discharges, dyspepsia, inflammations, constipation, leukoderma, amenorrhea, and colic. Curcumin has the potential to treat a wide variety of inflammatory diseases including cancer, diabetes, cardiovascular diseases, arthritis, Alzheimer's disease, psoriasis, etc, through modulation of numerous molecular targets. This article reviews the use of curcumin for the chemoprevention and treatment of various diseases.
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Affiliation(s)
- Leelavinothan Pari
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamil Nadu, India
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40
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Bartolommei G, Tadini-Buoninsegni F, Moncelli MR, Guidelli R. Electrogenic steps of the SR Ca-ATPase enzymatic cycle and the effect of curcumin. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2007; 1778:405-13. [PMID: 18005661 DOI: 10.1016/j.bbamem.2007.10.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2007] [Revised: 10/10/2007] [Accepted: 10/17/2007] [Indexed: 11/18/2022]
Abstract
Sarcoplasmic reticulum (SR) vesicles were adsorbed on an octadecanethiol/phosphatidylcholine mixed bilayer anchored to a gold electrode, and the Ca-ATPase contained in the vesicles was activated by ATP concentration jumps in the presence of calcium ions. The resulting capacitive current transients are compared with those calculated on the basis of the enzymatic cycle of the calcium pump. This comparison provides information on the kinetics of the E(2)-E(1) conformational change and on its pH dependence. The alteration in the current transients following ATP concentration jumps in the presence of curcumin is examined. In particular, curcumin decreases the rate of slippage of the Ca-ATPase, and at concentrations above 10 microM reduces calcium transport by this pump.
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Affiliation(s)
- Gianluca Bartolommei
- Department of Chemistry, University of Florence, via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy
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41
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Norez C, Antigny F, Becq F, Vandebrouck C. Maintaining low Ca2+ level in the endoplasmic reticulum restores abnormal endogenous F508del-CFTR trafficking in airway epithelial cells. Traffic 2007; 7:562-73. [PMID: 16643279 DOI: 10.1111/j.1600-0854.2006.00409.x] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The most common mutation in cystic fibrosis, F508del, results in cystic fibrosis transmembrane conductance regulator protein (CFTR) that is retained in the endoplasmic reticulum (ER). Retention is dependent on chaperone proteins, many of which, like calnexin, require calcium for optimal activity. Here, we show that a limited and a maintained ER calcium level is sufficient to inhibit the F508del-CFTR/calnexin interaction and to restore the cAMP-dependent CFTR chloride transport, thus showing the correction of abnormal trafficking. We used Western blot analysis, iodide efflux and calcium measurement techniques applied to the human airway epithelial cystic fibrosis cell line CF15 (F508del/F508del). The inhibition of ER calcium pump, with thapsigargin, curcumin, 2,5-di(t-butyl)hydroquinone or cyclopiazonic acid, maintains a threshold levels of calcium that is correlated to the recovery of endogenous F508del-CFTR transport activity. In particular, cyclopiazonic acid restores a 2-aminoethyoxydiphenyl borate-sensitive F508del-CFTR trafficking with an EC50 of 915 nm. By contrast, the 1,4,5-trisphosphate or IP3 receptor activators, i.e., ATP and histamine, while transiently emptying the ER intracellular calcium store, did not affect the trafficking of F508del-CFTR. Our data suggest that decreasing the ER calcium level is not sufficient to restore the defective trafficking of F508del-CFTR, whereas decreasing and also maintaining low ER calcium level allow correction of defective biosynthetic pathway of endogenous F508del-CFTR in human airway epithelial cells.
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Affiliation(s)
- Caroline Norez
- Institut de Physiologie et Biologie Cellulaires CNRS UMR 6187, Université de Poitiers, 40 Avenue du Recteur Pineau, 86022 Poitiers, France
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Goel A, Kunnumakkara AB, Aggarwal BB. Curcumin as "Curecumin": from kitchen to clinic. Biochem Pharmacol 2007; 75:787-809. [PMID: 17900536 DOI: 10.1016/j.bcp.2007.08.016] [Citation(s) in RCA: 1426] [Impact Index Per Article: 83.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2007] [Revised: 08/13/2007] [Accepted: 08/14/2007] [Indexed: 02/06/2023]
Abstract
Although turmeric (Curcuma longa; an Indian spice) has been described in Ayurveda, as a treatment for inflammatory diseases and is referred by different names in different cultures, the active principle called curcumin or diferuloylmethane, a yellow pigment present in turmeric (curry powder) has been shown to exhibit numerous activities. Extensive research over the last half century has revealed several important functions of curcumin. It binds to a variety of proteins and inhibits the activity of various kinases. By modulating the activation of various transcription factors, curcumin regulates the expression of inflammatory enzymes, cytokines, adhesion molecules, and cell survival proteins. Curcumin also downregulates cyclin D1, cyclin E and MDM2; and upregulates p21, p27, and p53. Various preclinical cell culture and animal studies suggest that curcumin has potential as an antiproliferative, anti-invasive, and antiangiogenic agent; as a mediator of chemoresistance and radioresistance; as a chemopreventive agent; and as a therapeutic agent in wound healing, diabetes, Alzheimer disease, Parkinson disease, cardiovascular disease, pulmonary disease, and arthritis. Pilot phase I clinical trials have shown curcumin to be safe even when consumed at a daily dose of 12g for 3 months. Other clinical trials suggest a potential therapeutic role for curcumin in diseases such as familial adenomatous polyposis, inflammatory bowel disease, ulcerative colitis, colon cancer, pancreatic cancer, hypercholesteremia, atherosclerosis, pancreatitis, psoriasis, chronic anterior uveitis and arthritis. Thus, curcumin, a spice once relegated to the kitchen shelf, has moved into the clinic and may prove to be "Curecumin".
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Affiliation(s)
- Ajay Goel
- Gastrointestinal Cancer Research Laboratory, Department of Internal Medicine, Charles A. Sammons Cancer Center and Baylor Research Institute, Baylor University Medical Center, Dallas, TX, United States
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43
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Aggarwal BB, Sundaram C, Malani N, Ichikawa H. CURCUMIN: THE INDIAN SOLID GOLD. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2007; 595:1-75. [PMID: 17569205 DOI: 10.1007/978-0-387-46401-5_1] [Citation(s) in RCA: 842] [Impact Index Per Article: 49.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Turmeric, derived from the plant Curcuma longa, is a gold-colored spice commonly used in the Indian subcontinent, not only for health care but also for the preservation of food and as a yellow dye for textiles. Curcumin, which gives the yellow color to turmeric, was first isolated almost two centuries ago, and its structure as diferuloylmethane was determined in 1910. Since the time of Ayurveda (1900 Bc) numerous therapeutic activities have been assigned to turmeric for a wide variety of diseases and conditions, including those of the skin, pulmonary, and gastrointestinal systems, aches, pains, wounds, sprains, and liver disorders. Extensive research within the last half century has proven that most of these activities, once associated with turmeric, are due to curcumin. Curcumin has been shown to exhibit antioxidant, anti-inflammatory, antiviral, antibacterial, antifungal, and anticancer activities and thus has a potential against various malignant diseases, diabetes, allergies, arthritis, Alzheimer's disease, and other chronic illnesses. These effects are mediated through the regulation of various transcription factors, growth factors, inflammatory cytokines, protein kinases, and other enzymes. Curcumin exhibits activities similar to recently discovered tumor necrosis factor blockers (e.g., HUMIRA, REMICADE, and ENBREL), a vascular endothelial cell growth factor blocker (e.g., AVASTIN), human epidermal growth factor receptor blockers (e.g., ERBITUX, ERLOTINIB, and GEFTINIB), and a HER2 blocker (e.g., HERCEPTIN). Considering the recent scientific bandwagon that multitargeted therapy is better than monotargeted therapy for most diseases, curcumin can be considered an ideal "Spice for Life".
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MESH Headings
- Animals
- Anti-Bacterial Agents/chemistry
- Anti-Bacterial Agents/pharmacology
- Anti-Bacterial Agents/therapeutic use
- Anti-Inflammatory Agents, Non-Steroidal/chemistry
- Anti-Inflammatory Agents, Non-Steroidal/pharmacology
- Anti-Inflammatory Agents, Non-Steroidal/therapeutic use
- Antifungal Agents/chemistry
- Antifungal Agents/pharmacology
- Antifungal Agents/therapeutic use
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/pharmacology
- Antineoplastic Agents, Phytogenic/therapeutic use
- Antioxidants/chemistry
- Antioxidants/pharmacology
- Antioxidants/therapeutic use
- Antiviral Agents/chemistry
- Antiviral Agents/pharmacology
- Antiviral Agents/therapeutic use
- Arthritis, Rheumatoid/drug therapy
- Curcuma/chemistry
- Curcumin/analogs & derivatives
- Curcumin/chemistry
- Curcumin/metabolism
- Curcumin/pharmacology
- Curcumin/therapeutic use
- Humans
- India
- Medicine, Ayurvedic
- Models, Biological
- Molecular Structure
- Neoplasms/drug therapy
- Phytotherapy
- Plants, Medicinal
- Spices
- Structure-Activity Relationship
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Affiliation(s)
- Bharat B Aggarwal
- Department of Experimental Therapeutics, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA.
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44
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Takahashi M, Kondou Y, Toyoshima C. Interdomain communication in calcium pump as revealed in the crystal structures with transmembrane inhibitors. Proc Natl Acad Sci U S A 2007; 104:5800-5. [PMID: 17389383 PMCID: PMC1851572 DOI: 10.1073/pnas.0700979104] [Citation(s) in RCA: 105] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2007] [Indexed: 11/18/2022] Open
Abstract
Ca(2+)-ATPase of skeletal muscle sarcoplasmic reticulum is an ATP-driven Ca(2+) pump consisting of three cytoplasmic domains and 10 transmembrane helices. In the absence of Ca(2+), the three cytoplasmic domains gather to form a compact headpiece, but the ATPase is unstable without an inhibitor. Here we describe the crystal structures of Ca(2+)-ATPase in the absence of Ca(2+) stabilized with cyclopiazonic acid alone and in combination with other inhibitors. Cyclopiazonic acid is located in the transmembrane region of the protein near the cytoplasmic surface. The binding site partially overlaps with that of 2,5-di-tert-butyl-1,4-dihydroxybenzene but is separate from that of thapsigargin. The overall structure is significantly different from that stabilized with thapsigargin: The cytoplasmic headpiece is more upright, and the transmembrane helices M1-M4 are rearranged. Cyclopiazonic acid primarily alters the position of the M1' helix and thereby M2 and M4 and then M5. Because M5 is integrated into the phosphorylation domain, the whole cytoplasmic headpiece moves. These structural changes show how an event in the transmembrane domain can be transmitted to the cytoplasmic domain despite flexible links between them. They also reveal that Ca(2+)-ATPase has considerable plasticity even when fixed by a transmembrane inhibitor, presumably to accommodate thermal fluctuations.
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Affiliation(s)
- Mihoko Takahashi
- Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Youhei Kondou
- Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Chikashi Toyoshima
- Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
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45
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Harada K, Okiyoneda T, Hashimoto Y, Oyokawa K, Nakamura K, Suico MA, Shuto T, Kai H. Curcumin enhances cystic fibrosis transmembrane regulator expression by down-regulating calreticulin. Biochem Biophys Res Commun 2007; 353:351-6. [PMID: 17178109 DOI: 10.1016/j.bbrc.2006.12.036] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2006] [Accepted: 12/05/2006] [Indexed: 11/27/2022]
Abstract
Curcumin has been reported to correct cystic fibrosis caused by the DeltaF508 mutation of the cystic fibrosis transmembrane regulator (CFTR) but its mechanistic action remains unclear. We have recently demonstrated that the ER chaperone calreticulin (CRT) negatively regulates the CFTR cell surface expression and activity. Thus, we aimed at determining whether CRT mediates the effect of curcumin on CFTR. We show here that the treatment with curcumin of Chinese hamster ovary cells suppressed CRT expression and increased wild-type CFTR but did not affect DeltaF508 CFTR expression. However, we determined that although curcumin did not augment DeltaF508 CFTR expression, it enhanced the functional competence of DeltaF508 CFTR induced by 26 degrees C incubation. Knock down of CRT by siRNA at low-temperature had a similar effect. Our findings suggest that the positive effect of curcumin on CFTR expression is mediated through the down-regulation of CRT, a negative regulator of CFTR.
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Affiliation(s)
- Kazutsune Harada
- Department of Molecular Medicine, Faculty of Medical and Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
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46
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Mahmmoud YA. Modulation of protein kinase C by curcumin; inhibition and activation switched by calcium ions. Br J Pharmacol 2006; 150:200-8. [PMID: 17160011 PMCID: PMC2042896 DOI: 10.1038/sj.bjp.0706970] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND AND PURPOSE Previous studies have identified the natural polyphenol curcumin as a protein kinase C (PKC) inhibitor. In contrast, we found significant stimulation of PKC activity following curcumin treatment. Thus, the mechanism of curcumin interaction with PKC was investigated. EXPERIMENTAL APPROACH We employed phosphorylation assays in the presence of soluble or membrane-bound PKC substrates, followed by SDS-PAGE, autoradiography and phosphorylation intensity measurements. KEY RESULTS Curcumin inhibited PKC in the absence of membranes whereas stimulation was observed in the presence of membranes. Further analysis indicated that curcumin decreased PKC activity by competition with Ca(2+) stimulation of the kinase, resulting in inhibition of activity at lower Ca(2+) concentrations and stimulation at higher Ca(2+) concentrations. The role of the membrane is likely to be facilitation of Ca(2+)-binding to the kinase, thus relieving the curcumin inhibition observed at limited Ca(2+) concentrations. Curcumin was found to mildly stimulate the catalytic subunit of PKC, which does not require Ca(2+) for activation. In addition, studies on Ca(2+)-independent PKC isoforms as well as another curcumin target (the sarcoplasmic reticulum Ca(2+)-ATPase) confirmed a correlation between Ca(2+) concentration and the curcumin effects. CONCLUSIONS AND IMPLICATIONS Curcumin competes with Ca(2+) for the regulatory domain of PKC, resulting in a Ca(2+)-dependent dual effect on the kinase. We propose that curcumin interacts with the Ca(2+)-binding domains in target proteins. To our knowledge, this is the first study that defines an interaction domain for curcumin, and provides a rationale for the broad specificity of this polyphenol as a chemopreventive drug.
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Affiliation(s)
- Y A Mahmmoud
- Institute of Physiology and Biophysics, Ole Worms Allé 1185, University of Aarhus, Aarhus C, Denmark.
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47
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Wang X, Wang Q, Ives KL, Evers BM. Curcumin inhibits neurotensin-mediated interleukin-8 production and migration of HCT116 human colon cancer cells. Clin Cancer Res 2006; 12:5346-55. [PMID: 17000667 PMCID: PMC2613866 DOI: 10.1158/1078-0432.ccr-06-0968] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
PURPOSE Neurotensin, a gut tridecapeptide, acts as a potent cellular mitogen for various colorectal and pancreatic cancers that possess high-affinity neurotensin receptors. Cytokine/chemokine proteins are increasingly recognized as important local factors that play a role in the metastasis and invasion of multiple cancers. The purpose of this study was to (a) determine the effect of neurotensin on cytokine/chemokine gene expression and cell migration in human cancer cells and (b) assess the effect of curcumin, a natural dietary product, on neurotensin-mediated processes. EXPERIMENTAL DESIGN The human colorectal cancer, HCT116, was treated with neurotensin, with or without curcumin, and interleukin (IL)-8 expression and protein secretion was measured. Signaling pathways, which contribute to the effects of neurotensin, were assessed. Finally, the effect of curcumin on neurotensin-mediated HCT116 cell migration was analyzed. RESULTS We show that neurotensin, acting through the native high-affinity neurotensin receptor, induced IL-8 expression in human colorectal cancer cells in a time- and dose-dependent fashion. This stimulation involves Ca2+-dependent protein kinase C, extracellular signal-regulated kinase-dependent activator protein-1, and extracellular signal-regulated kinase-independent nuclear factor-kappaB pathways. Curcumin inhibited neurotensin-mediated activator protein-1 and nuclear factor-kappaB activation and Ca2+ mobilization. Moreover, curcumin blocked neurotensin-stimulated IL-8 gene induction and protein secretion and, at a low concentration (i.e., 10 micromol/L), blocked neurotensin-stimulated colon cancer cell migration. CONCLUSIONS Neurotensin-mediated induction of tumor cell IL-8 expression and secretion may contribute to the procarcinogenic effects of neurotensin on gastrointestinal cancers. Furthermore, a potential mechanism for the chemopreventive and chemotherapeutic effects of curcumin on colon cancers may be through the inhibition of gastrointestinal hormone (e.g., neurotensin)-induced chemokine expression and cell migration.
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Affiliation(s)
- Xiaofu Wang
- Department of Surgery, The University of Texas Medical Branch, Galveston, TX
| | - Qingding Wang
- Department of Surgery, The University of Texas Medical Branch, Galveston, TX
| | - Kirk L. Ives
- Department of Surgery, The University of Texas Medical Branch, Galveston, TX
| | - B. Mark Evers
- Department of Surgery, The University of Texas Medical Branch, Galveston, TX
- The Sealy Center for Cancer Cell Biology, The University of Texas Medical Branch, Galveston, TX
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48
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Mall S, Broadbridge R, Harrison SL, Gore MG, Lee AG, East JM. The presence of sarcolipin results in increased heat production by Ca(2+)-ATPase. J Biol Chem 2006; 281:36597-602. [PMID: 17018526 DOI: 10.1074/jbc.m606869200] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Skeletal muscle sarcoplasmic reticulum of large mammals such as rabbit contains sarcolipin (SLN), a small peptide with a single transmembrane alpha-helix. When reconstituted with the Ca(2+)-ATPase from skeletal muscle sarcoplasmic reticulum into sealed vesicles, the presence of SLN leads to a reduced level of accumulation of Ca(2+). Heats of reaction of the reconstituted Ca(2+)-ATPase with ATP were measured using isothermal calorimetry. The heat released increased linearly with time over 30 min and increased with increasing SLN content. Rates ATP hydrolysis by the reconstituted Ca(2+)-ATPase were constant over a 30-min time period and were the same when measured in the presence or absence of an ATP-regenerating system. The calculated values of heat released per mol of ATP hydrolyzed increased with increasing SLN content and fitted to a simple binding equation with a dissociation constant for the SLN.ATPase complex of 6.9 x 10(-4) +/- 2.9 x 10(-4) in units of mol fraction per monolayer. It is suggested that the interaction between Ca(2+)-ATPase and SLN in the sarcoplasmic reticulum could be important in thermogenesis by the sarcoplasmic reticulum.
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Affiliation(s)
- Sanjay Mall
- School of Biological Sciences, University of Southampton, Southampton, SO16 7PX, United Kingdom
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49
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Bartolommei G, Tadini-Buoninsegni F, Hua S, Moncelli MR, Inesi G, Guidelli R. Clotrimazole Inhibits the Ca2+-ATPase (SERCA) by Interfering with Ca2+ Binding and Favoring the E2 Conformation. J Biol Chem 2006; 281:9547-51. [PMID: 16452481 DOI: 10.1074/jbc.m510550200] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Clotrimazole (CLT) is an antimycotic imidazole derivative that is known to inhibit cytochrome P-450, ergosterol biosynthesis and proliferation of cells in culture, and to interfere with cellular Ca(2+) homeostasis. We found that CLT inhibits the Ca(2+)-ATPase of rabbit fast-twitch skeletal muscle (SERCA1), and we characterized in detail the effect of CLT on this calcium transport ATPase. We used biochemical methods for characterization of the ATPase and its partial reactions, and we also performed measurements of charge movements following adsorption of sarcoplasmic reticulum vesicles containing the ATPase onto a gold-supported biomimetic membrane. CLT inhibits Ca(2+)-ATPase and Ca(2+) transport with a K(I) of 35 mum. Ca(2+) binding in the absence of ATP and phosphoenzyme formation by the utilization of ATP in the presence of Ca(2+) are also inhibited within the same CLT concentration range. On the other hand, phosphoenzyme formation by utilization of P(i) in the absence of Ca(2+) is only minimally inhibited. It is concluded that CLT inhibits primarily Ca(2+) binding and, consequently, the Ca(2+)-dependent reactions of the SERCA cycle. It is suggested that CLT resides within the membrane-bound region of the transport ATPase, thereby interfering with binding and the conformational effects of the activating cation.
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Affiliation(s)
- Gianluca Bartolommei
- Department of Chemistry, University of Florence, 50019 Sesto Fiorentino, Florence, Italy
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Perlstein EO, Ruderfer DM, Ramachandran G, Haggarty SJ, Kruglyak L, Schreiber SL. Revealing Complex Traits with Small Molecules and Naturally Recombinant Yeast Strains. ACTA ACUST UNITED AC 2006; 13:319-27. [PMID: 16638537 DOI: 10.1016/j.chembiol.2006.01.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2005] [Revised: 01/13/2006] [Accepted: 01/20/2006] [Indexed: 02/04/2023]
Abstract
Here we demonstrate that natural variants of the yeast Saccharomyces cerevisiae are a model system for the systematic study of complex traits, specifically the response to small molecules. As a complement to artificial knockout collections of S. cerevisiae widely used to study individual gene function, we used 314- and 1932-member libraries of mutant strains generated by meiotic recombination to study the cumulative, quantitative effects of natural mutations on phenotypes induced by 23 small-molecule perturbagens (SMPs). This approach reveals synthetic lethality between SMPs, and genetic mapping studies confirm the involvement of multiple quantitative trait loci in the response to two SMPs that affect respiratory processes. The systematic combination of natural variants of yeast and small molecules that modulate evolutionarily conserved cellular processes can enable a better understanding of the general features of complex traits.
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Affiliation(s)
- Ethan O Perlstein
- Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, Harvard University, Cambridge, Massachusetts 02138, USA
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