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Huang L, Li B, Li X, Liu G, Liu R, Guo J, Xu B, Li Y, Fang W. Significance and Mechanisms of P-glycoprotein in Central Nervous System Diseases. Curr Drug Targets 2020; 20:1141-1155. [PMID: 30854958 DOI: 10.2174/1389450120666190308144448] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 03/04/2019] [Accepted: 03/05/2019] [Indexed: 12/28/2022]
Abstract
P-glycoprotein (P-gp) is a member of ATP-Binding Cassette (ABC) transporter family. Because of its characteristic luminal surface location, high transport potency and structural specificity, Pgp is regarded as a selective gatekeeper of the Blood Brain Barrier (BBB) to prevent the entry of toxins or unwanted substances into the brain. In recent years, increasing evidence has shown that P-gp is involved in the immune inflammatory response in the Central Nervous System (CNS) disorders by regulating microglia activation, and mediating immune cell migration. Furthermore, Glucocorticoid Receptor (GR) may play a crucial role in P-gp-mediated microglia activation and immune cell migration via GR-mediated mRNA decay. In this article, we will review P-gp structure, distribution, function, regulatory mechanisms, inhibitors and effects of P-gp in the pathogenesis of several CNS diseases and will discuss the role of P-gp in microglia activation, immune cell migration and the relationship with cytokine secretion.
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Affiliation(s)
- Liangliang Huang
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Binbin Li
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Xiang Li
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Ge Liu
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Rui Liu
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Jia Guo
- Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Baohui Xu
- Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Yunman Li
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Weirong Fang
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China
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Efferth T, Saeed ME, Kadioglu O, Seo EJ, Shirooie S, Mbaveng AT, Nabavi SM, Kuete V. Collateral sensitivity of natural products in drug-resistant cancer cells. Biotechnol Adv 2020; 38:107342. [DOI: 10.1016/j.biotechadv.2019.01.009] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 01/17/2019] [Accepted: 01/26/2019] [Indexed: 01/25/2023]
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Stanković T, Dinić J, Podolski-Renić A, Musso L, Burić SS, Dallavalle S, Pešić M. Dual Inhibitors as a New Challenge for Cancer Multidrug Resistance Treatment. Curr Med Chem 2019; 26:6074-6106. [PMID: 29874992 DOI: 10.2174/0929867325666180607094856] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 05/28/2018] [Accepted: 05/28/2018] [Indexed: 12/23/2022]
Abstract
BACKGROUND Dual-targeting in cancer treatment by a single drug is an unconventional approach in relation to drug combinations. The rationale for the development of dualtargeting agents is to overcome incomplete efficacy and drug resistance frequently present when applying individual targeting agents. Consequently, -a more favorable outcome of cancer treatment is expected with dual-targeting strategies. METHODS We reviewed the literature, concentrating on the association between clinically relevant and/or novel dual inhibitors with the potential to modulate multidrug resistant phenotype of cancer cells, particularly the activity of P-glycoprotein. A balanced analysis of content was performed to emphasize the most important findings and optimize the structure of this review. RESULTS Two-hundred and forty-five papers were included in the review. The introductory part was interpreted by 9 papers. Tyrosine kinase inhibitors' role in the inhibition of Pglycoprotein and chemosensitization was illustrated by 87 papers. The contribution of naturalbased compounds in overcoming multidrug resistance was reviewed using 92 papers, while specific dual inhibitors acting against microtubule assembling and/or topoisomerases were described with 55 papers. Eleven papers gave an insight into a novel and less explored approach with hybrid drugs. Their influence on P-glycoprotein and multidrug resistance was also evaluated. CONCLUSION These findings bring into focus rational anticancer strategies with dual-targeting agents. Most evaluated synthetic and natural drugs showed a great potential in chemosensitization. Further steps in this direction are needed for the optimization of anticancer treatment.
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Affiliation(s)
- Tijana Stanković
- Department of Neurobiology, Institute for Biological Research "Sinisa Stankovic", University of Belgrade, Belgrade, Serbia
| | - Jelena Dinić
- Department of Neurobiology, Institute for Biological Research "Sinisa Stankovic", University of Belgrade, Belgrade, Serbia
| | - Ana Podolski-Renić
- Department of Neurobiology, Institute for Biological Research "Sinisa Stankovic", University of Belgrade, Belgrade, Serbia
| | - Loana Musso
- DeFENS, Department of Food, Environmental and Nutritional Sciences, Universita degli Studi di Milano, Milano, Italy
| | - Sonja Stojković Burić
- Department of Neurobiology, Institute for Biological Research "Sinisa Stankovic", University of Belgrade, Belgrade, Serbia
| | - Sabrina Dallavalle
- DeFENS, Department of Food, Environmental and Nutritional Sciences, Universita degli Studi di Milano, Milano, Italy
| | - Milica Pešić
- Department of Neurobiology, Institute for Biological Research "Sinisa Stankovic", University of Belgrade, Belgrade, Serbia
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Sanchez-Carranza JN, González-Maya L, Razo-Hernández RS, Salas-Vidal E, Nolasco-Quintana NY, Clemente-Soto AF, García-Arizmendi L, Sánchez-Ramos M, Marquina S, Alvarez L. Achillin Increases Chemosensitivity to Paclitaxel, Overcoming Resistance and Enhancing Apoptosis in Human Hepatocellular Carcinoma Cell Line Resistant to Paclitaxel (Hep3B/PTX). Pharmaceutics 2019; 11:pharmaceutics11100512. [PMID: 31590262 PMCID: PMC6835644 DOI: 10.3390/pharmaceutics11100512] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/28/2019] [Accepted: 09/28/2019] [Indexed: 12/16/2022] Open
Abstract
Multidrug resistance (MDR) has become a major obstacle in the treatment of cancer, and is associated with mechanisms such as increased drug outflow, reduction of apoptosis, and/or altered drug metabolism. These problems can be mitigated by the coadministration of agents known as chemosensitizers, as they can reverse resistance to anticancer drugs and eventually resensitize cancer cells. We explore the chemosensitizing effect of Achillin, a guaianolide-type sesquiterpene lactone isolated from the Mexican medicinal plant Artemisia ludovisiana, to reverse MDR in Hep3B/PTX cells of hepatocellular carcinoma, which present resistance to paclitaxel (PTX). Achillin showed an important effect as chemosensitizer; indeed, the cytotoxic effect of PTX (25 nM) was enhanced, and the induction of G2/M phase cell cycle arrest and apoptosis were potentiated when combining with Achillin (100 μM). In addition, we observed that Achillin decreases P-gp levels and increases the intracellular retention of doxorubicin in Hep3B/PTX cells; in addition, homology structural modeling and molecular docking calculations predicted that Achillin interacts in two regions (M-site and R-site) of transporter drug efflux P-glycoprotein (P-gp). Our results suggest that the chemosensitizer effect demonstrated for Achillin could be associated with P-gp modulation. This work also provides useful information for the development of new therapeutic agents from guaianolide-type sesquiterpene lactones like Achillin.
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Affiliation(s)
- Jessica Nayelli Sanchez-Carranza
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa C.P. 62209, Cuernavaca, Mexico.
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa C.P. 62209, Cuernavaca, Mexico.
| | - Leticia González-Maya
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa C.P. 62209, Cuernavaca, Mexico.
| | - Rodrigo Said Razo-Hernández
- Centro de Investigación en Dinámica Celular-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Chamilpa, Cuernavaca 62209, Morelos, Mexico.
| | - Enrique Salas-Vidal
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca C.P. 62209, Morelos, Mexico.
| | - Ninfa Yaret Nolasco-Quintana
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa C.P. 62209, Cuernavaca, Mexico.
- Centro de Investigación en Dinámica Celular-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Chamilpa, Cuernavaca 62209, Morelos, Mexico.
| | - Aldo F Clemente-Soto
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa C.P. 62209, Cuernavaca, Mexico.
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa. Av. de las Américas y Blvd. Universitarios S/N, Culiacán 80010, Sinaloa, Mexico.
| | - Lucero García-Arizmendi
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa C.P. 62209, Cuernavaca, Mexico.
| | - Mariana Sánchez-Ramos
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa C.P. 62209, Cuernavaca, Mexico.
| | - Silvia Marquina
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa C.P. 62209, Cuernavaca, Mexico.
| | - Laura Alvarez
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa C.P. 62209, Cuernavaca, Mexico.
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Effect of amyloid beta on ATP-binding cassette transporter expression and activity in porcine brain microvascular endothelial cells. Biochim Biophys Acta Gen Subj 2018; 1862:2314-2322. [PMID: 30048740 DOI: 10.1016/j.bbagen.2018.07.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 07/19/2018] [Accepted: 07/20/2018] [Indexed: 11/24/2022]
Abstract
BACKGROUND Deposition of amyloid-β peptide (Aβ(1-42)) within the brain is characteristic of Alzheimer's disease. Little is known of the effects of Aβ(1-42) on blood-brain barrier (BBB) ATP-binding Cassette (ABC) efflux transporters which influence BBB permeability. The effects of Aβ(1-42) on ABCB1, ABCC5 and ABCG2 activity and expression and pregnane X receptor (PXR) and constitutive androstane receptor (CAR) transcription factors expression were determined in primary porcine brain endothelial cells (PBECs). METHODS The effect of Aβ(1-42) on transporter activity was determined by measurement of intracellular accumulation of the fluorescent probes calcein (ABCB1), GS-MF (ABCC5) and Hoechst 33342 (ABCG2). Expression of transporters and transcription factors was assessed by Western blotting. RESULTS Treatment of PBECs with Aβ(1-42) significantly decreased activity of ABCB1 (Aβ(1-42) at 10 μg/ml, 25 μg/ml and 50 μg/ml), ABCC5 (Aβ(1-42) at 25 μg/ml and 50 μg/ml) and ABCG2 (Aβ(1-42) at 10 μg/ml, 25 μg/ml and 50 μg/ml). Aβ(1-42) also significantly decreased expression of ABCB1 (p < 0.05 at 25 μg/ml and 50 μg/ml), ABCG2 (p < 0.05 at 25 μg/ml and p ≤ 0.001 at 50 μg/ml), ABCC5 (p < 0.05 at 25 μg/ml and 50 μg/ml), PXR (p < 0.05 at 10 μg/ml, 25 μg/ml and 50 μg/ml Aβ(1-42)) and CAR (p < 0.05 at 25 μg/ml and 50 μg/ml Aβ(1-42)). CONCLUSION Aβ(1-42) inhibits multiple ABC transporters and PXR and CAR in PBECs. GENERAL SIGNIFICANCE Aβ(1-42) reduces ABC transporter activity and expression in BBB endothelial cells and has the potential to influence BBB permeability characteristics.
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Tsend-Ayush A, Zhu X, Ding Y, Yao J, Yin L, Zhou J, Yao J. Lactobionic acid-conjugated TPGS nanoparticles for enhancing therapeutic efficacy of etoposide against hepatocellular carcinoma. NANOTECHNOLOGY 2017; 28:195602. [PMID: 28291743 DOI: 10.1088/1361-6528/aa66ba] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Many effective anti-cancer drugs have limited use in hepatocellular carcinoma (HCC) therapy due to the drug resistance mechanisms in liver cells. In recent years, tumor-targeted drug delivery and the inhibition of drug-resistance-related mechanisms has become an integrated strategy for effectively combating chemo-resistant cancer. Herein, lactobionic acid-conjugated d-α-tocopheryl polyethylene glycol 1000 succinate (TPGS-LA conjugate) has been developed as a potential asialoglycoprotein receptor (ASGPR)-targeted nanocarrier and an efficient inhibitor of P-glycoprotein (P-gp) to enhance etoposide (ETO) efficacy against HCC. The main properties of ETO-loaded TPGS-LA nanoparticles (NPs) were tested through in vitro and in vivo studies after being prepared using the nanoprecipitation method and characterized by dynamic light scattering (DLS). According to the results, smaller (∼141.43 nm), positively charged ETO-loaded TPGS-LA NPs were more suitable for providing efficient delivery to hepatoma cells by avoiding the clearance mechanisms. It was found that ETO-loaded TPGS-LA NPs were noticeably able to enhance the cytotoxicity of ETO in HepG2 cells. Besides this, markedly higher internalization by the ASGPR-overexpressed HepG2 cells and efficient accumulation at the tumor site in vivo were revealed in the TPGS-LA NP group. More importantly, animal studies confirmed that ETO-loaded TPGS-LA NPs achieved the highest therapeutic efficacy against HCC. Interestingly, ETO-loaded TPGS-LA NPs also exhibited a great inhibitory effect on P-gp compared to the ETO-loaded TPGS NPs. These results suggest that TPGS-LA NPs could be used as a potential ETO delivery system against HCC.
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Affiliation(s)
- Altansukh Tsend-Ayush
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, People's Republic of China
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Zhong H, Zhao X, Zuo Z, Sun J, Yao Y, Wang T, Liu D, Zhao L. Combating P-glycoprotein-mediated multidrug resistance with 10-O-phenyl dihydroartemisinin ethers in MCF-7 cells. Eur J Med Chem 2015; 108:720-729. [PMID: 26741854 DOI: 10.1016/j.ejmech.2015.10.040] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 09/25/2015] [Accepted: 10/22/2015] [Indexed: 10/22/2022]
Abstract
A series of 10-β-phenyl ethers of dihydroartemisinin (DHA) with piperazine substitutions were synthesized with the goal of overcoming multidrug resistance in cancer therapy. These novel compounds exerted significant antiproliferative activities in breast cancer MCF-7 and MCF-7/Adr cell lines at the submicromolar level and were shown to be approximately 100- to 300-times more potent than the lead compound DHA. Remarkably, the P-gp-overexpressed MCF-7/Adr cell line showed collateral sensitivity towards these derivatives. Furthermore, compounds 3d and 5c, with the highest selectivity for MCF-7/Adr towards MCF-7 cells, were free from P-gp efflux in a MDCK-MDR1 assay. Flow cytometry and western blot assays suggested that the antiproliferative effects of 5c were associated with cell cycle arrest at G1 phase through the downregulation of Cyclin D1 and Cyclin B1.
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Affiliation(s)
- Hang Zhong
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xuan Zhao
- School of Life Sciences and Biopharmaceutis, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zhizhong Zuo
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jingwei Sun
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yao Yao
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Tao Wang
- School of Life Sciences and Biopharmaceutis, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Dan Liu
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Linxiang Zhao
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China.
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Abdallah HM, Al-Abd AM, El-Dine RS, El-Halawany AM. P-glycoprotein inhibitors of natural origin as potential tumor chemo-sensitizers: A review. J Adv Res 2014; 6:45-62. [PMID: 25685543 PMCID: PMC4293676 DOI: 10.1016/j.jare.2014.11.008] [Citation(s) in RCA: 214] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 11/15/2014] [Accepted: 11/18/2014] [Indexed: 01/10/2023] Open
Abstract
Resistance of solid tumors to treatment is significantly attributed to pharmacokinetic reasons at both cellular and multi-cellular levels. Anticancer agent must be bio-available at the site of action in a cytotoxic concentration to exert its proposed activity. P-glycoprotein (P-gp) is a member of the ATP-dependent membrane transport proteins; it is known to pump substrates out of cells in ATP-dependent mechanism. The over-expression of P-gp in tumor cells reduces the intracellular drug concentrations, which decreases the cytotoxicity of a broad spectrum of antitumor drugs. Accordingly, P-gp inhibitors/blockers are potential enhancer for the cellular bioavailability of several clinically important anticancer drugs such as, anthracyclines, taxanes, vinca alkaloids, and podophyllotoxins. Besides several chemically synthesized P-gp inhibitors/blockers, some naturally occurring compounds and plant extracts were reported for their modulation of multidrug resistance; however, this review will focus only on major classes of naturally occurring inhibitors viz., flavonoids, coumarins, terpenoids, alkaloids and saponins.
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Affiliation(s)
- Hossam M Abdallah
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia ; Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Ahmed M Al-Abd
- Pharmacology Department, Medical Division, National Research Center, Giza, Egypt ; Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Riham Salah El-Dine
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Ali M El-Halawany
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia ; Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
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Tilaoui M, Mouse HA, Jaafari A, Zyad A. Differential effect of artemisinin against cancer cell lines. NATURAL PRODUCTS AND BIOPROSPECTING 2014; 4:189-96. [PMID: 24955301 PMCID: PMC4050314 DOI: 10.1007/s13659-014-0024-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Accepted: 05/19/2014] [Indexed: 05/28/2023]
Abstract
The present study aims at defining the differential cytotoxicity effect of artemisinin toward P815 (murin mastocytoma) and BSR (kidney adenocarcinoma of hamster) cell lines. Cytotoxicity was measured by the growth inhibition using MTT assay. These in vitro cytotoxicity studies were complemented by the determination of apoptotic DNA fragmentation and Annexin V- streptavidin-FITC assay. Furthermore, we examined the in vitro synergism between artemisinin and the chemotherapeutic drug, vincristin. The in vivo study was investigated using the DBA2/P815 (H2d) mouse model. While artemisinin acted on both tumor cell lines, P815 was much more sensitive to this drug than BSR cells, as revealed by the respective IC50 values (12 µM for P815 and 52 µM for BSR cells). On another hand, and interestingly, apoptosis was induced in P815 but not induced in BSR. These data, reveal an interesting differential cytotoxic effect, suggesting the existence of different molecular interactions between artemisinin and the studied cell lines. In vivo, our results clearly showed that the oral administration of artemisinin inhibited solid tumor development. Our study demonstrates that artemisinin caused differential cytotoxic effects depending not only on the concentration and time of exposure but also on the target cells.
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Affiliation(s)
- Mounir Tilaoui
- Laboratory of Biological Engineering, Natural Substances, Cellular and Molecular Immuno-pharmacology, Immunobiology of Cancer Cells Cluster, Faculty of Science and Technology, P. Box 523, 23000 Béni-Mellal, Morocco
| | - Hassan Ait Mouse
- Laboratory of Biological Engineering, Natural Substances, Cellular and Molecular Immuno-pharmacology, Immunobiology of Cancer Cells Cluster, Faculty of Science and Technology, P. Box 523, 23000 Béni-Mellal, Morocco
| | - Abdeslam Jaafari
- Laboratory of Biological Engineering, Natural Substances, Cellular and Molecular Immuno-pharmacology, Immunobiology of Cancer Cells Cluster, Faculty of Science and Technology, P. Box 523, 23000 Béni-Mellal, Morocco
| | - Abdelmajid Zyad
- Laboratory of Biological Engineering, Natural Substances, Cellular and Molecular Immuno-pharmacology, Immunobiology of Cancer Cells Cluster, Faculty of Science and Technology, P. Box 523, 23000 Béni-Mellal, Morocco
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Abstract
This review covers the isolation, structural determination, synthesis and chemical and microbiological transformations of natural sesquiterpenoids. The literature from January to December 2012 is reviewed, and 471 references are cited.
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Affiliation(s)
- Braulio M Fraga
- Instituto de Productos Naturales y Agrobiología, CSIC, 38206-La Laguna, Tenerife, Canary Islands, Spain
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