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Arglabin, an EGFR receptor tyrosine kinase inhibitor, suppresses proliferation and induces apoptosis in prostate cancer cells. Biomed Pharmacother 2022; 156:113873. [DOI: 10.1016/j.biopha.2022.113873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/10/2022] [Accepted: 10/13/2022] [Indexed: 12/09/2022] Open
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Lagunas-Rangel FA. Sequence Analysis and Comparison of TCTP Proteins from Human Protozoan Parasites. Acta Parasitol 2022; 67:1024-1031. [PMID: 35138574 PMCID: PMC9165267 DOI: 10.1007/s11686-022-00521-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/11/2022] [Indexed: 11/24/2022]
Abstract
Purpose Translational controlled tumor protein (TCTP) is a functionally important protein in most eukaryotes because it participates in a wide variety of processes, the most representative being proliferation, differentiation, histamine release, cell death, protein synthesis and response to stress conditions. In the present work, we analyze the sequence, structure and phylogeny of TCTP orthologs in a group of human parasitic protozoan species. Methods The complete sequences of TCTP orthologs in protozoan parasites were identified with the NCBI BLAST tool in the database of the EuPathDB Bioinformatics Resource Center. The sequences were aligned and important regions of the protein were identified, and later phylogenetic trees and 3D models were built with different bioinformatic tools. Results Our results show evolutionarily and structurally conserved sites that could be exploited to create new therapeutic strategies given the increase in the number of strains resistant to current drugs. Conclusion TCTP orthologs in protozoan parasites have been little studied but have been shown to be important in parasite growth, proliferation, reproduction, and response to changes in the environment. For all this, TCTP can be considered as a possible therapeutic target. Supplementary Information The online version contains supplementary material available at 10.1007/s11686-022-00521-9.
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Structure-Activity Relationships of the Antimalarial Agent Artemisinin 10. Synthesis and Antimalarial Activity of Enantiomers of rac-5β-Hydroxy-d-Secoartemisinin and Analogs: Implications Regarding the Mechanism of Action. Molecules 2021; 26:molecules26144163. [PMID: 34299438 PMCID: PMC8304634 DOI: 10.3390/molecules26144163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 06/29/2021] [Accepted: 06/30/2021] [Indexed: 11/16/2022] Open
Abstract
An efficient synthesis of rac-6-desmethyl-5β–hydroxy-d-secoartemisinin 2, a tricyclic analog of R-(+)-artemisinin 1, was accomplished and the racemate was resolved into the (+)-2b and (−)-2a enantiomers via their Mosher Ester diastereomers. Antimalarial activity resided with only the artemisinin-like enantiomer R-(−)-2a. Several new compounds 9–16, 19a, 19b, 22 and 29 were synthesized from rac-2 but the C-5 secondary hydroxyl group was surprisingly unreactive. For example, the formation of carbamates and Mitsunobu reactions were unsuccessful. In order to assess the unusual reactivity of 2, a single crystal X-ray crystallographic analysis revealed a close intramolecular hydrogen bond from the C-5 alcohol to the oxepane ether oxygen (O-11). All products were tested in vitro against the W-2 and D-6 strains of Plasmodium falciparum. Several of the analogs had moderate activity in comparison to the natural product 1. Iron (II) bromide-promoted rearrangement of 2 gave, in 50% yield, the ring-contracted tetrahydrofuran 22, while the 5-ketone 15 provided a monocyclic methyl ketone 29 (50%). Neither 22 nor 29 possessed in vitro antimalarial activity. These results have implications in regard to the antimalarial mechanism of action of artemisinin.
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Zhou M, Varol A, Efferth T. Multi-omics approaches to improve malaria therapy. Pharmacol Res 2021; 167:105570. [PMID: 33766628 DOI: 10.1016/j.phrs.2021.105570] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 03/02/2021] [Accepted: 03/16/2021] [Indexed: 01/07/2023]
Abstract
Malaria contributes to the most widespread infectious diseases worldwide. Even though current drugs are commercially available, the ever-increasing drug resistance problem by malaria parasites poses new challenges in malaria therapy. Hence, searching for efficient therapeutic strategies is of high priority in malaria control. In recent years, multi-omics technologies have been extensively applied to provide a more holistic view of functional principles and dynamics of biological mechanisms. We briefly review multi-omics technologies and focus on recent malaria progress conducted with the help of various omics methods. Then, we present up-to-date advances for multi-omics approaches in malaria. Next, we describe resistance phenomena to established antimalarial drugs and underlying mechanisms. Finally, we provide insight into novel multi-omics approaches, new drugs and vaccine developments and analyze current gaps in multi-omics research. Although multi-omics approaches have been successfully used in malaria studies, they are still limited. Many gaps need to be filled to bridge the gap between basic research and treatment of malaria patients. Multi-omics approaches will foster a better understanding of the molecular mechanisms of Plasmodium that are essential for the development of novel drugs and vaccines to fight this disastrous disease.
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Affiliation(s)
- Min Zhou
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, Staudinger Weg 5, 55128 Mainz, Germany
| | - Ayşegül Varol
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, Staudinger Weg 5, 55128 Mainz, Germany
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, Staudinger Weg 5, 55128 Mainz, Germany.
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Joof F, Goheen MM, Cerami C. Artemisinin Activity in Red Blood Cells from Anemic Children. Am J Trop Med Hyg 2021; 104:271-275. [PMID: 33169662 DOI: 10.4269/ajtmh.20-0304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Artemisinin combination therapies are the current frontline therapy for falciparum malaria. Artemisinin is activated by heme iron, and the consequent production of reactive oxygen species and carbon-centered radicals results in rapid parasite clearance. Red blood cells (RBCs) from anemic iron-deficient individuals have decreased levels of heme, and such deficiencies are highly prevalent among children and pregnant women in malaria-endemic countries. We, therefore, investigated the possibility that host anemia could impair artemisinin activity and alter the drug sensitivity of artemisinin-resistant strains of Plasmodium falciparum. We collected RBCs from anemic (n = 35) and nonanemic (n = 11) Gambian children between the ages of 2 and 24 months. Parasites grown in RBCs from both groups were assessed in vitro using the ring-stage survival assay with artemisinin-resistant and artemisinin-sensitive strains of P. falciparum. No differences were found in artemisinin sensitivity (P > 0.05), and there was no correlation between artemisinin activity and host hemoglobin levels. Standard antimalarial drug activity assays for representatives of the major classes of antimalarial drugs found no differences in the IC50 values against P. falciparum between anemic and nonanemic RBCs. We conclude that host anemia does not influence artemisinin activity.
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Affiliation(s)
- Fatou Joof
- 1Medical Research Council Unit The Gambia at London School of Hygiene and Tropical Medicine, Banjul, The Gambia
| | - Morgan M Goheen
- 2Department of Internal Medicine, Yale University, New Haven, Connecticut
| | - Carla Cerami
- 1Medical Research Council Unit The Gambia at London School of Hygiene and Tropical Medicine, Banjul, The Gambia
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Kumar R, Saran S. Comparative modelling unravels the structural features of eukaryotic TCTP implicated in its multifunctional properties: an in silico approach. J Mol Model 2021; 27:20. [PMID: 33410974 DOI: 10.1007/s00894-020-04630-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 12/01/2020] [Indexed: 10/22/2022]
Abstract
Comparative modelling helps compare the structure and functions of a given protein, to track the path of its origin and evolution and also guide in structure-based drug discovery. Presently, this has been applied for modelling the tertiary structure of highly conserved eukaryotic TCTP (translationally controlled tumour protein) which is involved in a plethora of functions during growth and development and also acts as a biomarker for many cancers like lung, breast, and prostate cancer. The modelled TCTP structures of different organisms belonging to the eukaryotic group showed similar spatial arrangement of structural units except loops and similar patterns of root mean square deviation (RMSD), root mean square fluctuation, and radius of gyration (Rg) inspected through molecular dynamics simulations. Essential dynamics (ED) analyses revealed different domains that exhibited different motions for the assistance in its multifunctional properties. Construction of a free-energy landscape (FEL) based on Rg versus RMSD was employed to characterize the folding behaviours of structures and observe that all proteins had nearly similar conformation and topologies, indicating common thermodynamic/kinetic pathways. A physico-chemical interaction study demonstrated the helices and sheets were well stabilized with ample amounts of bonding compared to turns or loops and charged residues were more accessible to solvent molecules. Hence, the current study reveals the important structural features of TCTP that aid in diverse functions in a wide range of organisms, thus extending our knowledge of TCTP and also providing a venue for designing the potent inhibitors against it.
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Affiliation(s)
- Rakesh Kumar
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Shweta Saran
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
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Lu X, Efferth T. Repurposing of artemisinin-type drugs for the treatment of acute leukemia. Semin Cancer Biol 2021; 68:291-312. [DOI: 10.1016/j.semcancer.2020.05.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 05/22/2020] [Accepted: 05/22/2020] [Indexed: 12/19/2022]
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Yang J, He Y, Li Y, Zhang X, Wong YK, Shen S, Zhong T, Zhang J, Liu Q, Wang J. Advances in the research on the targets of anti-malaria actions of artemisinin. Pharmacol Ther 2020; 216:107697. [PMID: 33035577 PMCID: PMC7537645 DOI: 10.1016/j.pharmthera.2020.107697] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 09/30/2020] [Accepted: 09/30/2020] [Indexed: 01/01/2023]
Abstract
Malaria has been a global epidemic health threat since ancient times. It still claims roughly half a million lives every year in this century. Artemisinin and its derivatives, are frontline antimalarial drugs known for their efficacy and low toxicity. After decades of wide use, artemisinins remain our bulwark against malaria. Here, we review decades of efforts that aim to understand the mechanism of action (MOA) of artemisinins, which help explain the specificity and potency of this anti-malarial drug. We summarize the methods and approaches employed to unravel the MOA of artemisinin over the last three decades, showing how the development of advanced techniques can help provide mechanistic insights and resolve some long-standing questions in the field of artemisinin research. We also provide examples to illustrate how to better repurpose artemisinins for anti-cancer therapies by leveraging on MOA. These examples point out a practical direction to engineer artemisinin for broader applications beyond malaria.
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Affiliation(s)
- Jing Yang
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, China; Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yingke He
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, China; Department of Anaesthesiology, Singapore General Hospital, Singapore
| | - Yinbao Li
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou, JiangXi 341000, China
| | - Xing Zhang
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yin-Kwan Wong
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Shengnan Shen
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Tianyu Zhong
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, China; Laboratory Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, China.
| | - Jianbin Zhang
- Department of Oncology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China.
| | - Qian Liu
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, China.
| | - Jigang Wang
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, China; Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China; Central People's Hospital of Zhanjiang, Zhanjiang, Guangdong, China; Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.
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Bioactive Compounds, Pharmacological Actions, and Pharmacokinetics of Wormwood ( Artemisia absinthium). Antibiotics (Basel) 2020; 9:antibiotics9060353. [PMID: 32585887 PMCID: PMC7345338 DOI: 10.3390/antibiotics9060353] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 06/16/2020] [Accepted: 06/20/2020] [Indexed: 12/18/2022] Open
Abstract
Plants have been used since ancient times to cure certain infectious diseases, and some of them are now standard treatments for several diseases. Due to the side effects and resistance of pathogenic microorganisms to antibiotics and most drugs on the market, a great deal of attention has been paid to extracts and biologically active compounds isolated from plant species used in herbal medicine. Artemisia absinthium is an important perennial shrubby plant that has been widely used for the treatment of several ailments. Traditionally, A. absinthium has always been of pharmaceutical and botanical importance and used to manage several disorders including hepatocyte enlargement, hepatitis, gastritis, jaundice, wound healing, splenomegaly, dyspepsia, indigestion, flatulence, gastric pain, anemia, and anorexia. It has also been documented to possess antioxidant, antifungal, antimicrobial, anthelmintic, anti-ulcer, anticarcinogenic, hepatoprotective, neuroprotective, antidepressant, analgesic, immunomodulatory, and cytotoxic activity. Long-term use of A. absinthium essential oil may cause toxic and mental disorders in humans with clinical manifestations including convulsions, sleeplessness, and hallucinations. Combination chemotherapies of artemisia extract or its isolated active constituents with the currently available antibabesial or anti-malarial drugs are now documented to relieve malaria and piroplasmosis infections. The current review examines the phytoconstituents, toxic and biological activities of A. absinthium.
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Yang W, Chen X, Li Y, Guo S, Wang Z, Yu X. Advances in Pharmacological Activities of Terpenoids. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20903555] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Terpenoids, the most abundant compounds in natural products, are a set of important secondary metabolites in plants with diverse structures. Terpenoids play key roles in plant growth and development, response to the environment, and physiological processes. As raw materials, terpenoids were also widely used in pharmaceuticals, food, and cosmetics industries. Terpenoids possess antitumor, anti-inflammatory, antibacterial, antiviral, antimalarial effects, promote transdermal absorption, prevent and treat cardiovascular diseases, and have hypoglycemic activities. In addition, previous studies have also found that terpenoids have many potential applications, such as insect resistance, immunoregulation, antioxidation, antiaging, and neuroprotection. Terpenoids have a complex structure with diverse effects and different mechanisms of action. Activities and mechanisms of terpenoids were reviewed in this paper. The development and application prospect of terpenoid compounds were also prospected, which provides a useful reference for new drug discovery and drug design based on terpenoids.
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Affiliation(s)
| | - Xu Chen
- School of Pharmacy, Linyi University, P. R. China
| | - Yanli Li
- School of Pharmacy, Linyi University, P. R. China
| | - Shaofen Guo
- School of Pharmacy, Linyi University, P. R. China
| | - Zhen Wang
- School of Pharmacy, Linyi University, P. R. China
| | - Xiuling Yu
- School of Pharmacy, Linyi University, P. R. China
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Chen GQ, Benthani FA, Wu J, Liang D, Bian ZX, Jiang X. Artemisinin compounds sensitize cancer cells to ferroptosis by regulating iron homeostasis. Cell Death Differ 2020; 27:242-254. [PMID: 31114026 PMCID: PMC7205875 DOI: 10.1038/s41418-019-0352-3] [Citation(s) in RCA: 264] [Impact Index Per Article: 66.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 04/24/2019] [Accepted: 05/02/2019] [Indexed: 01/19/2023] Open
Abstract
The antimalarial drug artemisinin and its derivatives have been explored as potential anticancer agents, but their underlying mechanisms are controversial. In this study, we found that artemisinin compounds can sensitize cancer cells to ferroptosis, a new form of programmed cell death driven by iron-dependent lipid peroxidation. Mechanistically, dihydroartemisinin (DAT) can induce lysosomal degradation of ferritin in an autophagy-independent manner, increasing the cellular free iron level and causing cells to become more sensitive to ferroptosis. Further, by associating with cellular free iron and thus stimulating the binding of iron-regulatory proteins (IRPs) with mRNA molecules containing iron-responsive element (IRE) sequences, DAT impinges on IRP/IRE-controlled iron homeostasis to further increase cellular free iron. Importantly, in both in vitro and a mouse xenograft model in which ferroptosis was triggered in cancer cells by the inducible knockout of GPX4, we found that DAT can augment GPX4 inhibition-induced ferroptosis in a cohort of cancer cells that are otherwise highly resistant to ferroptosis. Collectively, artemisinin compounds can sensitize cells to ferroptosis by regulating cellular iron homeostasis. Our findings can be exploited clinically to enhance the effect of future ferroptosis-inducing cancer therapies.
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Affiliation(s)
- Guo-Qing Chen
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York City, NY, 10065, USA
| | - Fahad A Benthani
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York City, NY, 10065, USA
| | - Jiao Wu
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York City, NY, 10065, USA
- National Translational Science Center for Molecular Medicine, Department of Cell Biology, School of Basic Medicine, Air Force Medical University, Xi'an, 710032, China
| | - Deguang Liang
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York City, NY, 10065, USA
| | - Zhao-Xiang Bian
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Xuejun Jiang
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York City, NY, 10065, USA.
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Boia-Ferreira M, Moreno KG, Basílio ABC, da Silva LP, Vuitika L, Soley B, Wille ACM, Donatti L, Barbaro KC, Chaim OM, Gremski LH, Veiga SS, Senff-Ribeiro A. TCTP from Loxosceles Intermedia (Brown Spider) Venom Contributes to the Allergic and Inflammatory Response of Cutaneous Loxoscelism. Cells 2019; 8:E1489. [PMID: 31766608 PMCID: PMC6953063 DOI: 10.3390/cells8121489] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 11/07/2019] [Accepted: 11/10/2019] [Indexed: 12/24/2022] Open
Abstract
LiTCTP is a toxin from the Translationally Controlled Tumor Protein (TCTP) family identified in Loxosceles brown spider venoms. These proteins are known as histamine-releasing factors (HRF). TCTPs participate in allergic and anaphylactic reactions, which suggest their potential role as therapeutic targets. The histaminergic effect of TCTP is related to its pro-inflammatory functions. An initial characterization of LiTCTP in animal models showed that this toxin can increase the microvascular permeability of skin vessels and induce paw edema in a dose-dependent manner. We evaluated the role of LiTCTP in vitro and in vivo in the inflammatory and allergic aspects that undergo the biological responses observed in Loxoscelism, the clinical condition after an accident with Loxosceles spiders. Our results showed LiTCTP recombinant toxin (LiRecTCTP) as an essential synergistic factor for the dermonecrotic toxin actions (LiRecDT1, known as the main toxin in the pathophysiology of Loxoscelism), revealing its contribution to the exacerbated inflammatory response clinically observed in envenomated patients.
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Affiliation(s)
- Marianna Boia-Ferreira
- Department of Cell Biology, Federal University of Paraná, Curitiba 81531-980, PR, Brazil; (M.B.-F.); (K.G.M.); (A.B.C.B.); (L.P.d.S.); (L.V.); (L.D.); or (L.H.G.); (S.S.V.)
| | - Kamila G. Moreno
- Department of Cell Biology, Federal University of Paraná, Curitiba 81531-980, PR, Brazil; (M.B.-F.); (K.G.M.); (A.B.C.B.); (L.P.d.S.); (L.V.); (L.D.); or (L.H.G.); (S.S.V.)
| | - Alana B. C. Basílio
- Department of Cell Biology, Federal University of Paraná, Curitiba 81531-980, PR, Brazil; (M.B.-F.); (K.G.M.); (A.B.C.B.); (L.P.d.S.); (L.V.); (L.D.); or (L.H.G.); (S.S.V.)
| | - Lucas P. da Silva
- Department of Cell Biology, Federal University of Paraná, Curitiba 81531-980, PR, Brazil; (M.B.-F.); (K.G.M.); (A.B.C.B.); (L.P.d.S.); (L.V.); (L.D.); or (L.H.G.); (S.S.V.)
| | - Larissa Vuitika
- Department of Cell Biology, Federal University of Paraná, Curitiba 81531-980, PR, Brazil; (M.B.-F.); (K.G.M.); (A.B.C.B.); (L.P.d.S.); (L.V.); (L.D.); or (L.H.G.); (S.S.V.)
| | - Bruna Soley
- Department of Pharmacology, Federal University of Paraná, Curitiba 81531-980, PR, Brazil;
| | - Ana Carolina M. Wille
- Department of Structural and Molecular Biology, State University of Ponta Grossa, Ponta Grossa 84030-900, PR, Brazil;
| | - Lucélia Donatti
- Department of Cell Biology, Federal University of Paraná, Curitiba 81531-980, PR, Brazil; (M.B.-F.); (K.G.M.); (A.B.C.B.); (L.P.d.S.); (L.V.); (L.D.); or (L.H.G.); (S.S.V.)
| | - Katia C. Barbaro
- Laboratory of Immunopathology, Butantan Institute, São Paulo 05503-900, SP, Brazil;
| | - Olga M. Chaim
- Department of Cell Biology, Federal University of Paraná, Curitiba 81531-980, PR, Brazil; (M.B.-F.); (K.G.M.); (A.B.C.B.); (L.P.d.S.); (L.V.); (L.D.); or (L.H.G.); (S.S.V.)
- Department of Pharmacology, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Luiza Helena Gremski
- Department of Cell Biology, Federal University of Paraná, Curitiba 81531-980, PR, Brazil; (M.B.-F.); (K.G.M.); (A.B.C.B.); (L.P.d.S.); (L.V.); (L.D.); or (L.H.G.); (S.S.V.)
| | - Silvio S. Veiga
- Department of Cell Biology, Federal University of Paraná, Curitiba 81531-980, PR, Brazil; (M.B.-F.); (K.G.M.); (A.B.C.B.); (L.P.d.S.); (L.V.); (L.D.); or (L.H.G.); (S.S.V.)
| | - Andrea Senff-Ribeiro
- Department of Cell Biology, Federal University of Paraná, Curitiba 81531-980, PR, Brazil; (M.B.-F.); (K.G.M.); (A.B.C.B.); (L.P.d.S.); (L.V.); (L.D.); or (L.H.G.); (S.S.V.)
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Translationally controlled tumor protein (TCTP) plays a pivotal role in cardiomyocyte survival through a Bnip3-dependent mechanism. Cell Death Dis 2019; 10:549. [PMID: 31320615 PMCID: PMC6639386 DOI: 10.1038/s41419-019-1787-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/10/2019] [Accepted: 06/21/2019] [Indexed: 12/13/2022]
Abstract
Prevention of cardiomyocyte death is an important therapeutic strategy for heart failure. In this study, we focused on translationally controlled tumor protein (TCTP), a highly conserved protein that is expressed ubiquitously in mammalian tissues, including heart. TCTP plays pivotal roles in survival of certain cell types, but its function in cardiomyocytes has not been examined. We aimed to clarify the role of TCTP in cardiomyocyte survival and the underlying mechanism. Here, we demonstrated that downregulation of TCTP with siRNA induced cell death of cardiomyocytes with apoptotic and autophagic features, accompanied with mitochondrial permeability transition pore (mPTP) opening. TCTP loss did not induce cell death of cardiac fibroblasts. Bcl-2/adenovirus E1B 19-kDa interacting protein 3 (Bnip3) was found to mediate the TCTP-loss-induced cardiomyocyte death. In exploring the clinical significance of the TCTP expression in the heart, we found that DOX treatment markedly downregulated the protein expression of TCTP in cultured cardiomyocytes and in mouse heart tissue. Exogenous rescue of TCTP expression attenuated DOX-induced cardiomyocyte death. In mice, cardiomyocyte-specific overexpression of TCTP resulted in decreased susceptibility to DOX-induced cardiac dysfunction, accompanied with attenuated induction of Bnip3. Dihydroartemisinin, a pharmacological TCTP inhibitor, induced development of heart failure and cardiomyocyte death in control mice, but not in mice with cardiomyocyte-specific TCTP overexpression. Our findings revealed TCTP has a pivotal role in cardiomyocyte survival, at least in part through a Bnip3-dependent mechanism. TCTP could be considered as a candidate therapeutic target to prevent DOX-induced heart failure.
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Yao X, Liu YJ, Cui Q, Feng Y. Solution structure of a unicellular microalgae-derived translationally controlled tumor protein revealed both conserved features and structural diversity. Arch Biochem Biophys 2019; 665:23-29. [PMID: 30797749 DOI: 10.1016/j.abb.2019.02.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 02/16/2019] [Accepted: 02/18/2019] [Indexed: 10/27/2022]
Abstract
Translationally controlled tumor proteins (TCTPs) are eukaryote-conserved multifunctional proteins, but their primary functions are not well understood yet. Study on TCTP from unicellular species may provide insight into the primary function of the TCTP family. Bioinformatic analysis indicated that the TCTP from Nannochloropsis oceanica (NoTCTP), a model unicellular microalga for biodiesel and polyunsaturated fatty acid production, has low sequence homology to other structure-known TCTPs and two TCTP signature patterns are not detected in NoTCTP. Hence, we determined the solution structure of NoTCTP. The overall structure of NoTCTP, including a long flexible loop, a β-barrel subdomain, and a helical subdomain, is generally similar to other TCTP structures. NoTCTP has a eukaryote-conserved surface for the binding of eukaryotic elongation factor 1B, confirming that TCTP is involved in protein synthesis, which is one of the primary functions of TCTP. Additionally, NoTCTP has distinct features different from other TCTPs. NoTCTP structure lacks a short α-helix which exists in all other known TCTP structures. The helical subdomain and some loops of NoTCTP also have distinct conformations among the TCTP family proteins. Therefore, our study on NoTCTP revealed not only conserved structural features but also the structural diversity of TCTP family proteins.
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Affiliation(s)
- Xingzhe Yao
- CAS Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China; Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China; Qingdao Engineering Laboratory of Single Cell Oil, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ya-Jun Liu
- CAS Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China; Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China; Qingdao Engineering Laboratory of Single Cell Oil, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
| | - Qiu Cui
- CAS Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China; Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China; Qingdao Engineering Laboratory of Single Cell Oil, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
| | - Yingang Feng
- CAS Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China; Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China; Qingdao Engineering Laboratory of Single Cell Oil, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China.
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16
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Pasupureddy R, Atul, Seshadri S, Pande V, Dixit R, Pandey KC. Current scenario and future strategies to fight artemisinin resistance. Parasitol Res 2018; 118:29-42. [PMID: 30478733 DOI: 10.1007/s00436-018-6126-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 10/19/2018] [Indexed: 02/05/2023]
Abstract
Despite several setbacks in the fight against malaria such as insecticide and drug resistance as well as low efficacy of available vaccines, considerable success in reducing malaria burden has been achieved in the past decade. Artemisinins (ARTs and their combination therapies, ACTs), the current frontline drugs against uncomplicated malaria, rapidly kill plasmodial parasites and are non-toxic at short exposures. Though the exact mode of action remains unclear, the endoperoxide bridge, indispensable for ART activity, is thought to react with heme released from hemoglobin hydrolysis and generate free radicals that alkylate multiple protein targets, thereby disrupting proteostasis pathways. However, rapid development of ART resistance in recent years with no potential alternatives on the horizon threaten the elimination efforts. The Greater Mekong Subregion in South-East Asia continues to churn out mutants resistant to multiple ACTs and detected in increasingly expanding geographies. Extensive research on ART-resistant strains have identified a potential candidate Kelch13, crucial for mediating ART resistance. Parasites with mutations in the propeller domains of Plasmodium falciparum Kelch13 protein were shown to have enhanced phosphatidylinositol 3-kinase levels that were concomitant with delayed parasite clearance. Current research focused on understanding the mechanism of Kelch13-mediated ART resistance could provide better insights into Plasmodium resistome. This review covers the current proposed mechanisms of ART activity, resistance strategies adopted by the parasite in response to ACTs and possible future approaches to mitigate the spread of resistance from South-East Asia.
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Affiliation(s)
- Rahul Pasupureddy
- National Institute of Malaria Research, Dwarka Sector 8, New Delhi, 110077, India.,Institute of Science, Nirma University, SG Highway, Ahmedabad, Gujarat, 382481, India
| | - Atul
- National Institute of Malaria Research, Dwarka Sector 8, New Delhi, 110077, India.,Department of Biotechnology, Kumaun University, Nainital, Uttarakhand, 263001, India
| | - Sriram Seshadri
- Institute of Science, Nirma University, SG Highway, Ahmedabad, Gujarat, 382481, India
| | - Veena Pande
- Department of Biotechnology, Kumaun University, Nainital, Uttarakhand, 263001, India
| | - Rajnikant Dixit
- National Institute of Malaria Research, Dwarka Sector 8, New Delhi, 110077, India
| | - Kailash C Pandey
- National Institute of Malaria Research, Dwarka Sector 8, New Delhi, 110077, India. .,Department of Biochemistry, Indian Council of Medical Research, National Institute for Research in Environmental Health, Bhopal, Madhya Pradesh, 462001, India.
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17
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Lechuga GC, Pereira MCS, Bourguignon SC. Heme metabolism as a therapeutic target against protozoan parasites. J Drug Target 2018; 27:767-779. [DOI: 10.1080/1061186x.2018.1536982] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Guilherme Curty Lechuga
- Laboratório de Interação celular e molecular, Departamento de Biologia Celular e Molecular, Universidade Federal Fluminense, Rua Outeiro São João Batista, Rio de Janeiro, Brazil
- Fundação Oswaldo Cruz, Laboratório de Ultraestrutura Celular, Rio de Janeiro, Brazil
- Instituto de Biologia, Programa de Pós-graduação em Ciências e Biotecnologia (PPBI), Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - Mirian C. S. Pereira
- Fundação Oswaldo Cruz, Laboratório de Ultraestrutura Celular, Rio de Janeiro, Brazil
| | - Saulo C. Bourguignon
- Laboratório de Interação celular e molecular, Departamento de Biologia Celular e Molecular, Universidade Federal Fluminense, Rua Outeiro São João Batista, Rio de Janeiro, Brazil
- Instituto de Biologia, Programa de Pós-graduação em Ciências e Biotecnologia (PPBI), Universidade Federal Fluminense, Rio de Janeiro, Brazil
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18
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Synthesis of novel ring-contracted artemisinin dimers with potent anticancer activities. Eur J Med Chem 2018; 150:829-840. [DOI: 10.1016/j.ejmech.2018.03.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 02/27/2018] [Accepted: 03/02/2018] [Indexed: 11/21/2022]
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19
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Doré KA, Kashiwakura JI, McDonnell JM, Gould HJ, Kawakami T, Sutton BJ, Davies AM. Crystal structures of murine and human Histamine-Releasing Factor (HRF/TCTP) and a model for HRF dimerisation in mast cell activation. Mol Immunol 2017; 93:216-222. [PMID: 29216544 PMCID: PMC5966295 DOI: 10.1016/j.molimm.2017.11.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 11/22/2017] [Indexed: 01/21/2023]
Abstract
In allergic disease, mast cell activation is conventionally triggered by allergen-mediated cross-linking of receptor-bound IgE on the cell surface. In addition to its diverse range of intracellular roles in apoptosis, cell proliferation and cancer, Histamine-Releasing Factor (HRF) also activates mast cells and basophils. A subset of IgE antibodies bind HRF through their Fab regions, and two IgE binding sites on HRF have been mapped. HRF can form dimers, and a disulphide-linked dimer is critical for activity. The current model for the activity of HRF in mast cell activation involves cross-linking of receptor-bound IgE by dimeric HRF, mediated by HRF/Fab interactions. HRF crystal and solution structures have provided little insight into either the formation of disulphide-linked HRF dimers or the ability of HRF to activate mast cells. We report the first crystal structure of murine HRF (mHRF) to 4.0Å resolution, revealing a conserved fold. We also solved the structure of human HRF (hHRF) in two new crystal forms, one at the highest resolution (1.4Å) yet reported. The high resolution hHRF structure reveals a disulphide-linked dimer, in which the two molecules are closely associated, and provides a model for the role of both human and murine HRF in mast cell activation.
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Affiliation(s)
- Katy A Doré
- King's College London, Randall Centre for Cell and Molecular Biophysics, New Hunt's House, London, SE1 1UL, United Kingdom; Medical Research Council & Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom
| | - Jun-Ichi Kashiwakura
- Laboratory for Allergic Disease, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - James M McDonnell
- King's College London, Randall Centre for Cell and Molecular Biophysics, New Hunt's House, London, SE1 1UL, United Kingdom; Medical Research Council & Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom
| | - Hannah J Gould
- King's College London, Randall Centre for Cell and Molecular Biophysics, New Hunt's House, London, SE1 1UL, United Kingdom; Medical Research Council & Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom
| | - Toshiaki Kawakami
- Laboratory for Allergic Disease, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan; Division of Cell Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, 92037, USA; Department of Dermatology, University of California San Diego, School of Medicine, La Jolla, CA, 92093, USA
| | - Brian J Sutton
- King's College London, Randall Centre for Cell and Molecular Biophysics, New Hunt's House, London, SE1 1UL, United Kingdom; Medical Research Council & Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom.
| | - Anna M Davies
- King's College London, Randall Centre for Cell and Molecular Biophysics, New Hunt's House, London, SE1 1UL, United Kingdom; Medical Research Council & Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom.
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20
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Yuan DS, Chen YP, Tan LL, Huang SQ, Li CQ, Wang Q, Zeng QP. Artemisinin: A Panacea Eligible for Unrestrictive Use? Front Pharmacol 2017; 8:737. [PMID: 29089893 PMCID: PMC5651041 DOI: 10.3389/fphar.2017.00737] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 10/02/2017] [Indexed: 12/22/2022] Open
Abstract
Although artemisinin has been used as anti-malarial drug, accumulating evidence on the extended therapeutic potential of artemisinin emerges. Apart from anti-malaria and anti-tumor, artemisinin can also exert beneficial effects on some metabolic disorders, such as obesity, diabetes, and aging-related diseases. However, whether artemisinin should be applied to treatment of the wide-spectrum diseases is debating. Here, we discuss the predisposition of a raised risk of malarial resistance to artemisinin from consideration of the multi-target and non-specific features of artemisinin.
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Affiliation(s)
- Dong-Sheng Yuan
- Clinical Pharmacology Institute, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yan-Ping Chen
- Tropical Medicine Institute, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Li-Li Tan
- Tropical Medicine Institute, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Shui-Qing Huang
- Basic Medical Science College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chang-Qing Li
- Tropical Medicine Institute, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qi Wang
- Clinical Pharmacology Institute, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qing-Ping Zeng
- Tropical Medicine Institute, Guangzhou University of Chinese Medicine, Guangzhou, China
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21
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From ancient herb to modern drug: Artemisia annua and artemisinin for cancer therapy. Semin Cancer Biol 2017; 46:65-83. [DOI: 10.1016/j.semcancer.2017.02.009] [Citation(s) in RCA: 341] [Impact Index Per Article: 48.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 02/15/2017] [Accepted: 02/24/2017] [Indexed: 12/24/2022]
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22
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Pinkaew D, Fujise K. Fortilin: A Potential Target for the Prevention and Treatment of Human Diseases. Adv Clin Chem 2017; 82:265-300. [PMID: 28939212 DOI: 10.1016/bs.acc.2017.06.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Fortilin is a highly conserved 172-amino-acid polypeptide found in the cytosol, nucleus, mitochondria, extracellular space, and circulating blood. It is a multifunctional protein that protects cells against apoptosis, promotes cell growth and cell cycle progression, binds calcium (Ca2+) and has antipathogen activities. Its role in the pathogenesis of human and animal diseases is also diverse. Fortilin facilitates the development of atherosclerosis, contributes to both systemic and pulmonary arterial hypertension, participates in the development of cancers, and worsens diabetic nephropathy. It is important for the adaptive expansion of pancreatic β-cells in response to obesity and increased insulin requirement, for the regeneration of liver after hepatectomy, and for protection of the liver against alcohol- and ER stress-induced injury. Fortilin is a viable surrogate marker for in vivo apoptosis, and it plays a key role in embryo and organ development in vertebrates. In fish and shrimp, fortilin participates in host defense against bacterial and viral pathogens. Further translational research could prove fortilin to be a viable molecular target for treatment of various human diseases including and not limited to atherosclerosis, hypertension, certain tumors, diabetes mellitus, diabetic nephropathy, hepatic injury, and aberrant immunity and host defense.
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Affiliation(s)
- Decha Pinkaew
- University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Ken Fujise
- University of Texas Medical Branch at Galveston, Galveston, TX, United States; The Institute of Translational Sciences, University of Texas Medical Branch at Galveston, Galveston, TX, United States.
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23
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Synthesis and cytotoxic activity of new artemisinin hybrid molecules against human leukemia cells. Bioorg Med Chem 2017; 25:3357-3367. [DOI: 10.1016/j.bmc.2017.04.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 04/12/2017] [Accepted: 04/16/2017] [Indexed: 12/11/2022]
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24
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Wong YK, Xu C, Kalesh KA, He Y, Lin Q, Wong WSF, Shen HM, Wang J. Artemisinin as an anticancer drug: Recent advances in target profiling and mechanisms of action. Med Res Rev 2017. [PMID: 28643446 DOI: 10.1002/med.21446] [Citation(s) in RCA: 149] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Artemisinin and its derivatives (collectively termed as artemisinins) are among the most important and effective antimalarial drugs, with proven safety and efficacy in clinical use. Beyond their antimalarial effects, artemisinins have also been shown to possess selective anticancer properties, demonstrating cytotoxic effects against a wide range of cancer types both in vitro and in vivo. These effects appear to be mediated by artemisinin-induced changes in multiple signaling pathways, interfering simultaneously with multiple hallmarks of cancer. Great strides have been taken to characterize these pathways and to reveal their anticancer mechanisms of action of artemisinin. Moreover, encouraging data have also been obtained from a limited number of clinical trials to support their anticancer property. However, there are several key gaps in knowledge that continue to serve as significant barriers to the repurposing of artemisinins as effective anticancer agents. This review focuses on important and emerging aspects of this field, highlighting breakthroughs in unresolved questions as well as novel techniques and approaches that have been taken in recent studies. We discuss the mechanism of artemisinin activation in cancer, novel and significant findings with regards to artemisinin target proteins and pathways, new understandings in artemisinin-induced cell death mechanisms, as well as the practical issues of repurposing artemisinin. We believe these will be important topics in realizing the potential of artemisinin and its derivatives as safe and potent anticancer agents.
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Affiliation(s)
- Yin Kwan Wong
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Chengchao Xu
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Karunakaran A Kalesh
- Department of Chemical Engineering, Imperial College London, London, United Kingdom
| | - Yingke He
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Qingsong Lin
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - W S Fred Wong
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, Singapore, Singapore
| | - Han-Ming Shen
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jigang Wang
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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25
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Bossard G, Bartoli M, Fardeau ML, Holzmuller P, Ollivier B, Geiger A. Characterization of recombinant Trypanosoma brucei gambiense Translationally Controlled Tumor Protein (rTbgTCTP) and its interaction with Glossina midgut bacteria. Gut Microbes 2017; 8:413-427. [PMID: 28586253 PMCID: PMC5628649 DOI: 10.1080/19490976.2017.1331833] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
In humans, sleeping sickness (i.e. Human African Trypanosomiasis) is caused by the protozoan parasites Trypanosoma brucei gambiense (Tbg) in West and Central Africa, and T. b. rhodesiense in East Africa. We previously showed in vitro that Tbg is able to excrete/secrete a large number of proteins, including Translationally Controlled Tumor Protein (TCTP). Moreover, the tctp gene was described previously to be expressed in Tbg-infected flies. Aside from its involvement in diverse cellular processes, we have investigated a possible alternative role within the interactions occurring between the trypanosome parasite, its tsetse fly vector, and the associated midgut bacteria. In this context, the Tbg tctp gene was synthesized and cloned into the baculovirus vector pAcGHLT-A, and the corresponding protein was produced using the baculovirus Spodoptera frugicola (strain 9) / insect cell system. The purified recombinant protein rTbgTCTP was incubated together with bacteria isolated from the gut of tsetse flies, and was shown to bind to 24 out of the 39 tested bacteria strains belonging to several genera. Furthermore, it was shown to affect the growth of the majority of these bacteria, especially when cultivated under microaerobiosis and anaerobiosis. Finally, we discuss the potential for TCTP to modulate the fly microbiome composition toward favoring trypanosome survival.
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Affiliation(s)
- Géraldine Bossard
- CIRAD, UMR INTERTRYP, Montpellier, France,CONTACT Géraldine Bossard Centre de coopération International en Recherche Agronomique pour le Développement (CIRAD), Campus international de Baillarguet TA-A/17G 34398 Montpellier, France
| | | | | | - Philippe Holzmuller
- CIRAD, UMR CMAEE (control des maladies animales exotiques et émergentes), Montpellier, France
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26
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Tiensomjitr K, Prabpai S, Kongsaeree P. Characterization of the selective alkylation site in hemoglobin A by dihydroartemisinin with tandem mass spectrometry. Int J Biol Macromol 2017; 99:358-364. [PMID: 28259625 DOI: 10.1016/j.ijbiomac.2017.02.094] [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: 12/30/2016] [Revised: 02/24/2017] [Accepted: 02/26/2017] [Indexed: 10/20/2022]
Abstract
The reaction between the antimalarial drug dihydroartemisinin (DHA) and hemoglobin A (HbA) was investigated in vitro. A fluorescein-tagged artemisinin analog reacted with HbA and fluorescent HbA-drug adducts could be visualized on SDS-PAGE to confirm stable covalent reaction adducts and necessity of the endoperoxide moiety and Fe(II). Mass spectrometric analyses revealed that DHA favourably alkylated protein part rather than heme and the modification site was identified to be at Tyr35 of the beta globin chain.
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Affiliation(s)
- Khomsan Tiensomjitr
- Department of Chemistry and Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Samran Prabpai
- Department of Chemistry and Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Palangpon Kongsaeree
- Department of Chemistry and Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand.
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27
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Fröhlich T, Ndreshkjana B, Muenzner JK, Reiter C, Hofmeister E, Mederer S, Fatfat M, El-Baba C, Gali-Muhtasib H, Schneider-Stock R, Tsogoeva SB. Synthesis of Novel Hybrids of Thymoquinone and Artemisinin with High Activity and Selectivity Against Colon Cancer. ChemMedChem 2017; 12:226-234. [PMID: 27973725 DOI: 10.1002/cmdc.201600594] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Indexed: 12/28/2022]
Abstract
Colorectal cancer causes 0.5 million deaths each year. To combat this type of cancer the development of new specific drug candidates is urgently needed. In the present work seven novel thymoquinone-artemisinin hybrids with different linkers were synthesized and tested for their in vitro anticancer activity against a panel of various tumor cell lines. The thymoquinone-artesunic acid hybrid 7 a, in which both subunits are connected via an ester bond, was found to be the most active compound and selectively decreased the viability of colorectal cancer cells with an IC50 value of 2.4 μm (HCT116) and 2.8 μm (HT29). Remarkably, hybrid 7 a was up to 20-fold more active than its parent compounds (thymoquinone and artesunic acid), while not affecting nonmalignant colon epithelial HCEC cells (IC50 >100 μm). Moreover, the activity of hybrid 7 a was superior to that of various 1:1 mixtures of thymoquinone and artesunic acid. Furthermore, hybrid 7 a was even more potent against both colon cancer cell lines than the clinically used drug 5-fluorouracil. These results are another excellent proof of the hybridization concept and confirm that the type and length of the linker play a crucial role for the biological activity of a hybrid drug. Besides an increase in reactive oxygen species (ROS), elevated levels of the DNA-damage marker γ-H2AX were observed. Both effects seem to be involved in the molecular mechanism of action for hybrid 7 a in colorectal cancer cells.
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Affiliation(s)
- Tony Fröhlich
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich Alexander University of Erlangen-Nürnberg, Henkestr. 42, 91054, Erlangen, Germany
| | - Benardina Ndreshkjana
- Experimental Tumor Pathology, Institute of Pathology, Friedrich Alexander University of Erlangen-Nürnberg, Universitätsstr. 22, 91054, Erlangen, Germany
| | - Julienne K Muenzner
- Experimental Tumor Pathology, Institute of Pathology, Friedrich Alexander University of Erlangen-Nürnberg, Universitätsstr. 22, 91054, Erlangen, Germany
| | - Christoph Reiter
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich Alexander University of Erlangen-Nürnberg, Henkestr. 42, 91054, Erlangen, Germany
| | - Elisabeth Hofmeister
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich Alexander University of Erlangen-Nürnberg, Henkestr. 42, 91054, Erlangen, Germany
| | - Sandra Mederer
- Experimental Tumor Pathology, Institute of Pathology, Friedrich Alexander University of Erlangen-Nürnberg, Universitätsstr. 22, 91054, Erlangen, Germany
| | - Maamoun Fatfat
- Department of Biology, Department of Anatomy, Cell Biology and Physiological Science, American University of Beirut, Beirut, Lebanon
| | - Chirine El-Baba
- Experimental Tumor Pathology, Institute of Pathology, Friedrich Alexander University of Erlangen-Nürnberg, Universitätsstr. 22, 91054, Erlangen, Germany
| | - Hala Gali-Muhtasib
- Department of Biology, Department of Anatomy, Cell Biology and Physiological Science, American University of Beirut, Beirut, Lebanon
| | - Regine Schneider-Stock
- Experimental Tumor Pathology, Institute of Pathology, Friedrich Alexander University of Erlangen-Nürnberg, Universitätsstr. 22, 91054, Erlangen, Germany
| | - Svetlana B Tsogoeva
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich Alexander University of Erlangen-Nürnberg, Henkestr. 42, 91054, Erlangen, Germany
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28
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Assrir N, Malard F, Lescop E. Structural Insights into TCTP and Its Interactions with Ligands and Proteins. Results Probl Cell Differ 2017; 64:9-46. [PMID: 29149402 DOI: 10.1007/978-3-319-67591-6_2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The 19-24 kDa Translationally Controlled Tumor Protein (TCTP) is involved in a wide range of molecular interactions with biological and nonbiological partners of various chemical compositions such as proteins, peptides, nucleic acids, carbohydrates, or small molecules. TCTP is therefore an important and versatile binding platform. Many of these protein-protein interactions have been validated, albeit only few received an in-depth structural characterization. In this chapter, we will focus on the structural analysis of TCTP and we will review the available literature regarding its interaction network from a structural perspective.
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Affiliation(s)
- Nadine Assrir
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay, 1 avenue de la Terrasse, 91190, Gif-sur-Yvette, France
| | - Florian Malard
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay, 1 avenue de la Terrasse, 91190, Gif-sur-Yvette, France
| | - Ewen Lescop
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay, 1 avenue de la Terrasse, 91190, Gif-sur-Yvette, France.
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Li W, Zhou Y, Tang G, Xiao Y. Characterization of the Artemisinin Binding Site for Translationally Controlled Tumor Protein (TCTP) by Bioorthogonal Click Chemistry. Bioconjug Chem 2016; 27:2828-2833. [DOI: 10.1021/acs.bioconjchem.6b00556] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Weichao Li
- CAS
Key Laboratory of Synthetic Biology, CAS Center for Excellence in
Molecular Plant Sciences, Institute of Plant Physiology and Ecology,
Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Yiqing Zhou
- CAS
Key Laboratory of Synthetic Biology, CAS Center for Excellence in
Molecular Plant Sciences, Institute of Plant Physiology and Ecology,
Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Guanghui Tang
- School
of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Youli Xiao
- CAS
Key Laboratory of Synthetic Biology, CAS Center for Excellence in
Molecular Plant Sciences, Institute of Plant Physiology and Ecology,
Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
- University of Chinese Academy of Sciences, Beijing 100039, China
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Ogungbe IV, Setzer WN. The Potential of Secondary Metabolites from Plants as Drugs or Leads against Protozoan Neglected Diseases-Part III: In-Silico Molecular Docking Investigations. Molecules 2016; 21:E1389. [PMID: 27775577 PMCID: PMC6274513 DOI: 10.3390/molecules21101389] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 10/06/2016] [Accepted: 10/12/2016] [Indexed: 12/11/2022] Open
Abstract
Malaria, leishmaniasis, Chagas disease, and human African trypanosomiasis continue to cause considerable suffering and death in developing countries. Current treatment options for these parasitic protozoal diseases generally have severe side effects, may be ineffective or unavailable, and resistance is emerging. There is a constant need to discover new chemotherapeutic agents for these parasitic infections, and natural products continue to serve as a potential source. This review presents molecular docking studies of potential phytochemicals that target key protein targets in Leishmania spp., Trypanosoma spp., and Plasmodium spp.
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Affiliation(s)
- Ifedayo Victor Ogungbe
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS 39217, USA.
| | - William N Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA.
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Edwards RL, Odom John AR. Muddled mechanisms: recent progress towards antimalarial target identification. F1000Res 2016; 5:2514. [PMID: 27803804 PMCID: PMC5070598 DOI: 10.12688/f1000research.9477.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/06/2016] [Indexed: 01/06/2023] Open
Abstract
In the past decade, malaria rates have plummeted as a result of aggressive infection control measures and the adoption of artemisinin-based combination therapies (ACTs). However, a potential crisis looms ahead. Treatment failures to standard antimalarial regimens have been reported in Southeast Asia, and devastating consequences are expected if resistance spreads to the African continent. To prevent a potential public health emergency, the antimalarial arsenal must contain therapeutics with novel mechanisms of action (MOA). An impressive number of high-throughput screening (HTS) campaigns have since been launched, identifying thousands of compounds with activity against one of the causative agents of malaria,
Plasmodium falciparum. Now begins the difficult task of target identification, for which studies are often tedious, labor intensive, and difficult to interpret. In this review, we highlight approaches that have been instrumental in tackling the challenges of target assignment and elucidation of the MOA for hit compounds. Studies that apply these innovative techniques to antimalarial target identification are described, as well as the impact of the data in the field.
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Affiliation(s)
- Rachel L Edwards
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, USA
| | - Audrey R Odom John
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, USA; Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO, USA
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Sun J, Li C, Wang S. Organism-like formation of Schistosoma hemozoin and its function suggest a mechanism for anti-malarial action of artemisinin. Sci Rep 2016; 6:34463. [PMID: 27694940 PMCID: PMC5046088 DOI: 10.1038/srep34463] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 09/14/2016] [Indexed: 01/07/2023] Open
Abstract
The current theories of antimalarial mechanism of artemisinin are inadequate to fully explain the observed effects. In our study, “organism-like” formation of Schistosoma hemozoin granules by attaching to and utilizing erythrocytes to form new ones was observed. This indicates that heme iron is transferred from erythrocytes to hemozoin granules during their formation. However, as a disposal product of heme detoxification, these granules are not completely expelled from the Schistosoma gut, but decomposed again between microvilli in the posterior portion of the gut to transfer iron to eggs. Based on the function of iron transport supported by our observation of the unique process of Schistosoma hemozoin formation, here we propose a new viewpoint of antimalarial mechanism of artemisinin, which emphasizes the final outcome, i.e., interference of iron utilization in parasites by artemisinin, instead of focusing on the mode of interaction between artemisinin and heme or hemozoin. This suggests that artemisinin and its endoperoxides derivatives likely hit the Achilles’ heel of hemozoin-producing and iron-dependent organisms.
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Affiliation(s)
- Jun Sun
- Institute for Infectious Diseases and Vaccine Development, Tongji University School of Medicine, 1239 Siping Road, Shanghai 200092, P.R. China
| | - Chen Li
- Institute for Infectious Diseases and Vaccine Development, Tongji University School of Medicine, 1239 Siping Road, Shanghai 200092, P.R. China
| | - Suwen Wang
- Institute for Infectious Diseases and Vaccine Development, Tongji University School of Medicine, 1239 Siping Road, Shanghai 200092, P.R. China
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Antischistosomal activity of artemisinin derivatives in vivo and in patients. Pharmacol Res 2016; 110:216-226. [DOI: 10.1016/j.phrs.2016.02.017] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 02/07/2016] [Accepted: 02/16/2016] [Indexed: 11/20/2022]
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Njokah MJ, Kang'ethe JN, Kinyua J, Kariuki D, Kimani FT. In vitro selection of Plasmodium falciparum Pfcrt and Pfmdr1 variants by artemisinin. Malar J 2016; 15:381. [PMID: 27449110 PMCID: PMC4957835 DOI: 10.1186/s12936-016-1443-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Accepted: 07/18/2016] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Anti-malarial drugs are the major focus in the prevention and treatment of malaria. Artemisinin-based combination therapy (ACT) is the WHO recommended first-line treatment for Plasmodium falciparum malaria across the endemic world. Also ACT is increasingly relied upon in treating Plasmodium vivax malaria where chloroquine is failing. The emergence of artemisinin drug-resistant parasites is a serious threat faced by global malaria control programmes. Therefore, the success of treatment and intervention strategies is highly pegged on understanding the genetic basis of resistance. METHODS Here, resistance in P. falciparum was generated in vitro for artemisinin to produce levels above clinically relevant concentrations in vivo, and the molecular haplotypes investigated. Genomic DNA was extracted using the QIAamp mini DNA kit. DNA sequences of Pfk13, Pfcrt and Pfmdr1 genes were amplified by PCR and the amplicons were successfully sequenced. Single nucleotide polymorphisms were traced by standard bidirectional sequencing and reading the transcripts against wild-type sequences in Codon code Aligner Version 5.1 and NCBI blast. RESULTS Exposure of parasite strains D6 and W2 to artemisinin resulted in a decrease in parasite susceptibility to artemisinin (W2 and D6) and lumefantrine (D6 only). The parasites exhibited elevated IC50s to multiple artemisinins, with >twofold resistance to artemisinin; however, the resistance index obtained with standard methods was noticeably less than expected for parasite lines recovered from 50 µg/ml 48 h drug pressure. The change in parasite susceptibility was associated with Pfmdr-185K mutation, a mutation never reported before. The Pfcrt-CVMNK genotype (Pfcrt codons 72-76) was retained and notably, the study did not detect any polymorphisms reported to reduce P. falciparum susceptibility in vivo in the coding sequences of the Pfk13 gene. DISCUSSION This data demonstrate that P. falciparum has the capacity to develop resistance to artemisinin derivatives in vitro and that this phenotype is achieved by mutations in Pfmdr1, the genetic changes that are also underpinning lumefantrine resistance. This finding is of practical importance, because artemisinin drugs in Kenya are used in combination with lumefantrine for the treatment of malaria. CONCLUSION Artemisinin resistance phenotype as has been shown in this work, is a decrease in parasites susceptibility to artemisinin derivatives together with the parasite's ability to recover from drug-induced dormancy after exposure to drug dosage above the in vivo clinical concentrations. The study surmises that Pfmdr1 may play a role in the anti-malarial activity of artemisinin.
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Affiliation(s)
- Muturi J Njokah
- Jomo Kenyatta University of Agriculture and Technology (JKUAT), P.O. Box 62000-00200, Nairobi, Kenya
| | - Joseph N Kang'ethe
- Jomo Kenyatta University of Agriculture and Technology (JKUAT), P.O. Box 62000-00200, Nairobi, Kenya
| | - Johnson Kinyua
- Jomo Kenyatta University of Agriculture and Technology (JKUAT), P.O. Box 62000-00200, Nairobi, Kenya
| | - Daniel Kariuki
- Jomo Kenyatta University of Agriculture and Technology (JKUAT), P.O. Box 62000-00200, Nairobi, Kenya
| | - Francis T Kimani
- Kenya Medical Research Institute (KEMRI), Centre for Biotechnology Research and Development (CBRD), P.O. Box 54840-00200, Nairobi, Kenya.
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Muangphrom P, Seki H, Fukushima EO, Muranaka T. Artemisinin-based antimalarial research: application of biotechnology to the production of artemisinin, its mode of action, and the mechanism of resistance of Plasmodium parasites. J Nat Med 2016; 70:318-34. [PMID: 27250562 PMCID: PMC4935751 DOI: 10.1007/s11418-016-1008-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 05/03/2016] [Indexed: 12/27/2022]
Abstract
Malaria is a worldwide disease caused by Plasmodium parasites. A sesquiterpene endoperoxide artemisinin isolated from Artemisia annua was discovered and has been accepted for its use in artemisinin-based combinatorial therapies, as the most effective current antimalarial treatment. However, the quantity of this compound produced from the A. annua plant is very low, and the availability of artemisinin is insufficient to treat all infected patients. In addition, the emergence of artemisinin-resistant Plasmodium has been reported recently. Several techniques have been applied to enhance artemisinin availability, and studies related to its mode of action and the mechanism of resistance of malaria-causing parasites are ongoing. In this review, we summarize the application of modern technologies to improve the production of artemisinin, including our ongoing research on artemisinin biosynthetic genes in other Artemisia species. The current understanding of the mode of action of artemisinin as well as the mechanism of resistance against this compound in Plasmodium parasites is also presented. Finally, the current situation of malaria infection and the future direction of antimalarial drug development are discussed.
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Affiliation(s)
- Paskorn Muangphrom
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hikaru Seki
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Ery Odette Fukushima
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
- Continuing Professional Development Center, Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Toshiya Muranaka
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.
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Starkl Renar K, Iskra J, Križaj I. Understanding malarial toxins. Toxicon 2016; 119:319-29. [PMID: 27353131 DOI: 10.1016/j.toxicon.2016.06.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 05/26/2016] [Accepted: 06/24/2016] [Indexed: 10/21/2022]
Abstract
Recognized since antiquity, malaria is one of the most infamous and widespread infectious diseases in humans and, although the death rate during the last century has been diminishing, it still accounts for more than a half million deaths annually. It is caused by the Plasmodium parasite and typical symptoms include fever, shivering, headache, diaphoresis and nausea, all resulting from an excessive inflammatory response induced by malarial toxins released into the victim's bloodstream. These toxins are hemozoin and glycosylphosphatidylinositols. The former is the final product of the parasite's detoxification of haeme, a by-product of haemoglobin catabolism, while the latter anchor proteins to the Plasmodium cell surface or occur as free molecules. Currently, only two groups of antimalarial toxin drugs exist on the market, quinolines and artemisinins. As we describe, they both target biosynthesis of hemozoin. Other substances, currently in various phases of clinical trials, are directed towards biosynthesis of glycosylphosphatidylinositol, formation of hemozoin, or attenuation of the inflammatory response of the patient. Among the innovative approaches to alleviating the effects of malarial toxins, is the development of antimalarial toxin vaccines. In this review the most important lessons learned from the use of treatments directed against the action of malarial toxins in antimalarial therapy are emphasized and the most relevant and promising directions for future research in obtaining novel antimalarial agents acting on malarial toxins are discussed.
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Affiliation(s)
- Katarina Starkl Renar
- Laboratory of Organic and Bioorganic Chemistry, Department of Physical and Organic Chemistry, Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Jamova 39, 1000 Ljubljana, Slovenia.
| | - Jernej Iskra
- Laboratory of Organic and Bioorganic Chemistry, Department of Physical and Organic Chemistry, Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
| | - Igor Križaj
- Department of Molecular and Biomedical Sciences, Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia; Department of Chemistry and Biochemistry, Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia.
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Zhou Y, Li W, Xiao Y. Profiling of Multiple Targets of Artemisinin Activated by Hemin in Cancer Cell Proteome. ACS Chem Biol 2016; 11:882-8. [PMID: 26854499 DOI: 10.1021/acschembio.5b01043] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The antimalarial drug artemisinin is found to have diverse biological activities ranging from anti-inflammatory to anticancer properties; however, as of today, the cellular targets and mechanism of action of this important compound have remained elusive. Here, we report the global protein target profiling of artemisinin in the HeLa cancer cell proteome using a chemical proteomics approach. In the presence of hemin, multiple proteins were targeted by artemisinin probe through covalent modification. Further studies revealed that reducing of hemin to heme by protein thiols was essential for endoperoxide activation and subsequent protein alkylation. Artemisinin may exert its synergistic therapeutic anticancer effects via modulation of a variety of cellular pathways through acting on multiple targets.
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Affiliation(s)
- Yiqing Zhou
- CAS Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Weichao Li
- CAS Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Youli Xiao
- CAS Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
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Fröhlich T, Çapcı Karagöz A, Reiter C, Tsogoeva SB. Artemisinin-Derived Dimers: Potent Antimalarial and Anticancer Agents. J Med Chem 2016; 59:7360-88. [PMID: 27010926 DOI: 10.1021/acs.jmedchem.5b01380] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The development of new efficient therapeutics for the treatment of malaria and cancer is an important endeavor. Over the past 15 years, much attention has been paid to the synthesis of dimeric structures, which combine two units of artemisinin, as lead compounds of interest. A wide variety of atemisinin-derived dimers containing different linkers demonstrate improved properties compared to their parent compounds (e.g., circumventing multidrug resistance), making the dimerization concept highly compelling for development of efficient antimalarial and anticancer drugs. The present Perspective highlights recent developments on different types of artemisinin-derived dimers and their structural and functional features. Particular emphasis is put on the respective in vitro and in vivo studies, exploring the role of the length and nature of linkers on the activities of the dimers, and considering the future prospects of the dimerization concept for drug discovery.
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Affiliation(s)
- Tony Fröhlich
- Department of Chemistry and Pharmacy, Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM), University of Erlangen-Nürnberg , Henkestrasse 42, 91054 Erlangen, Germany
| | - Aysun Çapcı Karagöz
- Department of Chemistry and Pharmacy, Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM), University of Erlangen-Nürnberg , Henkestrasse 42, 91054 Erlangen, Germany
| | - Christoph Reiter
- Department of Chemistry and Pharmacy, Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM), University of Erlangen-Nürnberg , Henkestrasse 42, 91054 Erlangen, Germany
| | - Svetlana B Tsogoeva
- Department of Chemistry and Pharmacy, Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM), University of Erlangen-Nürnberg , Henkestrasse 42, 91054 Erlangen, Germany
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Pandey N, Pandey-Rai S. Updates on artemisinin: an insight to mode of actions and strategies for enhanced global production. PROTOPLASMA 2016; 253:15-30. [PMID: 25813833 DOI: 10.1007/s00709-015-0805-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 03/16/2015] [Indexed: 06/04/2023]
Abstract
Application of traditional Chinese drug, artemisinin, originally derived from Artemisia annua L., in malaria therapy has now been globally accepted. Artemisinin and its derivatives, with their established safety records, form the first line of malaria treatment via artemisinin combination therapies (ACTs). In addition to its antimalarial effects, artemisinin has recently been evaluated in terms of its antitumour, antibacterial, antiviral, antileishmanial, antischistosomiatic, herbicidal and other properties. However, low levels of artemisinin in plants have emerged various conventional, transgenic and nontransgenic approaches for enhanced production of the drug. According to WHO (2014), approximately 3.2 billion people are at risk of this disease. However, unfortunately, artemisinin availability is still facing its short supply. To fulfil artemisinin's global demand, no single method alone is reliable, and there is a need to collectively use conventional and advanced approaches for its higher production. Further, it is the unique structure of artemisinin that makes it a potential drug not only against malaria but to other diseases as well. Execution of its action through multiple mechanisms is probably the reason behind its wide spectrum of action. Unfortunately, due to clues for developing artemisinin resistance in malaria parasites, it has become desirable to explore all possible modes of action of artemisinin so that new generation antimalarial drugs can be developed in future. The present review provides a comprehensive updates on artemisinin modes of action and strategies for enhanced artemisinin production at global level.
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Affiliation(s)
- Neha Pandey
- Laboratory of Morphogenesis, Department of Botany, Banaras Hindu University, Varanasi, India
| | - Shashi Pandey-Rai
- Laboratory of Morphogenesis, Department of Botany, Banaras Hindu University, Varanasi, India.
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Haem-activated promiscuous targeting of artemisinin in Plasmodium falciparum. Nat Commun 2015; 6:10111. [PMID: 26694030 PMCID: PMC4703832 DOI: 10.1038/ncomms10111] [Citation(s) in RCA: 408] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 11/04/2015] [Indexed: 12/17/2022] Open
Abstract
The mechanism of action of artemisinin and its derivatives, the most potent of the anti-malarial drugs, is not completely understood. Here we present an unbiased chemical proteomics analysis to directly explore this mechanism in Plasmodium falciparum. We use an alkyne-tagged artemisinin analogue coupled with biotin to identify 124 artemisinin covalent binding protein targets, many of which are involved in the essential biological processes of the parasite. Such a broad targeting spectrum disrupts the biochemical landscape of the parasite and causes its death. Furthermore, using alkyne-tagged artemisinin coupled with a fluorescent dye to monitor protein binding, we show that haem, rather than free ferrous iron, is predominantly responsible for artemisinin activation. The haem derives primarily from the parasite's haem biosynthesis pathway at the early ring stage and from haemoglobin digestion at the latter stages. Our results support a unifying model to explain the action and specificity of artemisinin in parasite killing. The mechanism of action of artemisinin, an antimalarial drug, is not well understood. Here, the authors use a labelled artemisinin analogue to show that the drug is mainly activated by haem and then binds covalently to over 120 proteins in the malaria parasite, affecting many of its cellular processes.
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Siwo GH, Smith RS, Tan A, Button-Simons KA, Checkley LA, Ferdig MT. An integrative analysis of small molecule transcriptional responses in the human malaria parasite Plasmodium falciparum. BMC Genomics 2015; 16:1030. [PMID: 26637195 PMCID: PMC4670519 DOI: 10.1186/s12864-015-2165-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 10/29/2015] [Indexed: 12/05/2022] Open
Abstract
Background Transcriptional responses to small molecules can provide insights into drug mode of action (MOA). The capacity of the human malaria parasite, Plasmodium falciparum, to respond specifically to transcriptional perturbations has been unclear based on past approaches. Here, we present the most extensive profiling to date of the parasite’s transcriptional responsiveness to thirty-one chemically and functionally diverse small molecules. Methods We exposed two laboratory strains of the human malaria parasite P. falciparum to brief treatments of thirty-one chemically and functionally diverse small molecules associated with biological effects across multiple pathways based on various levels of evidence. We investigated the impact of chemical composition and MOA on gene expression similarities that arise between perturbations by various compounds. To determine the target biological pathways for each small molecule, we developed a novel framework for encoding small molecule effects on a spectra of biological processes or GO functions that are enriched in the differentially expressed genes of a given small molecule perturbation. Results We find that small molecules associated with similar transcriptional responses contain similar chemical features, and/ or have a shared MOA. The approach also revealed complex relationships between drugs and biological pathways that are missed by most exisiting approaches. For example, the approach was able to partition small molecule responses into drug-specific effects versus non-specific effects. Conclusions Our work provides a new framework for linking transcriptional responses to drug MOA in P. falciparum and can be generalized for the same purpose in other organisms. Electronic supplementary material The online version of this article (doi:10.1186/s12864-015-2165-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Geoffrey H Siwo
- Eck Institute for Global Health, Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, 46556, USA.,Current Address: IBM TJ Watson Research Center, Yorktown Heights, NY, 10598, USA.,Current Address: IBM Research-Africa, South Africa Lab, Sandton, Johannesburg, 2196, South Africa
| | - Roger S Smith
- Eck Institute for Global Health, Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, 46556, USA.,Current Address: Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Asako Tan
- Eck Institute for Global Health, Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, 46556, USA.,Epicenter, Madison, WI, 53719, USA
| | - Katrina A Button-Simons
- Eck Institute for Global Health, Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Lisa A Checkley
- Eck Institute for Global Health, Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Michael T Ferdig
- Eck Institute for Global Health, Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, 46556, USA.
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Highly potent artemisinin-derived dimers and trimers: Synthesis and evaluation of their antimalarial, antileukemia and antiviral activities. Bioorg Med Chem 2015; 23:5452-8. [PMID: 26260339 DOI: 10.1016/j.bmc.2015.07.048] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 07/24/2015] [Accepted: 07/25/2015] [Indexed: 12/15/2022]
Abstract
New pharmaceutically active compounds can be obtained by modification of existing drugs to access more effective agents in the wake of drug resistance amongst others. To achieve this goal the concept of hybridization was established during the last decade. We employed this concept by coupling two artemisinin-derived precursors to obtain dimers or trimers with increased in vitro activity against Plasmodiumfalciparum 3D7 strain, leukemia cells (CCRF-CEM and multidrug-resistant subline CEM/ADR5000) and human cytomegalovirus (HCMV). Dimer 4 (IC50 of 2.6 nM) possess superior antimalarial activity compared with its parent compound artesunic acid(3) (IC50 of 9.0 nM). Dimer5 and trimers6 and 7 display superior potency against both leukemia cell lines (IC50 up to 0.002 μM for CCRF-CEM and IC50 up to 0.20 μM for CEM/ADR5000) and are even more active than clinically used doxorubicin (IC50 1.61 μM for CEM/ADR5000). With respect to anti-HCMV activity, trimer6 is the most efficient hybrid (IC50 0.04 μM) outperforming ganciclovir (IC50 2.6 μM), dihydroartemisinin(IC50 >10 μM) and artesunic acid (IC50 3.8 μM).
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New efficient artemisinin derived agents against human leukemia cells, human cytomegalovirus and Plasmodium falciparum: 2nd generation 1,2,4-trioxane-ferrocene hybrids. Eur J Med Chem 2015; 97:164-72. [DOI: 10.1016/j.ejmech.2015.04.053] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Revised: 04/20/2015] [Accepted: 04/25/2015] [Indexed: 01/21/2023]
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Taylor KJ, Van TTH, MacDonald SM, Meshnick SR, Fernley RT, Macreadie IG, Smooker PM. Immunization of mice with Plasmodium TCTP delays establishment of Plasmodium infection. Parasite Immunol 2015; 37:23-31. [PMID: 25376500 DOI: 10.1111/pim.12158] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 10/31/2014] [Indexed: 12/19/2022]
Abstract
Translationally controlled tumour protein (TCTP) may play an important role in the establishment or maintenance of parasitemia in a malarial infection. In this study, the potential of TCTP as a malaria vaccine was investigated in two trials. In the initial vaccine trial, Plasmodium falciparum TCTP (PfTCTP) was expressed in Saccharomyces cerevisiae and used to immunize BALB/c mice. Following challenge with Plasmodium yoelii YM, parasitemia was significantly reduced during the early stages of infection. In the second vaccine trial, the TCTP from P. yoelii and P. berghei was expressed in Escherichia coli and used in several mouse malaria models. A significant reduction in parasitemia in the early stages of infection was observed in BALB/c mice challenged with P. yoelii YM. A significantly reduced parasitemia at each day leading up to a delayed and reduced peak parasitemia was also observed in BALB/c mice challenged with the nonlethal Plasmodium chabaudi (P.c.) chabaudi AS. These results suggest that TCTP has an important role for parasite establishment and may be important for pathogenesis.
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Affiliation(s)
- K J Taylor
- School of Applied Sciences, RMIT University, Bundoora, VIc., Australia
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Wu H, Gong W, Yao X, Wang J, Perrett S, Feng Y. Evolutionarily conserved binding of translationally controlled tumor protein to eukaryotic elongation factor 1B. J Biol Chem 2015; 290:8694-710. [PMID: 25635048 DOI: 10.1074/jbc.m114.628594] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Indexed: 11/06/2022] Open
Abstract
Translationally controlled tumor protein (TCTP) is an abundant protein that is highly conserved in eukaryotes. However, its primary function is still not clear. Human TCTP interacts with the metazoan-specific eukaryotic elongation factor 1Bδ (eEF1Bδ) and inhibits its guanine nucleotide exchange factor (GEF) activity, but the structural mechanism remains unknown. The interaction between TCTP and eEF1Bδ was investigated by NMR titration, structure determination, paramagnetic relaxation enhancement, site-directed mutagenesis, isothermal titration calorimetry, and HADDOCK docking. We first demonstrated that the catalytic GEF domain of eEF1Bδ is not responsible for binding to TCTP but rather a previously unnoticed central acidic region (CAR) domain in eEF1Bδ. The mutagenesis data and the structural model of the TCTP-eEF1Bδ CAR domain complex revealed the key binding residues. These residues are highly conserved in eukaryotic TCTPs and in eEF1B GEFs, including the eukaryotically conserved eEF1Bα, implying the interaction may be conserved in all eukaryotes. Interactions were confirmed between TCTP and the eEF1Bα CAR domain for human, fission yeast, and unicellular photosynthetic microalgal proteins, suggesting that involvement in protein translation through the conserved interaction with eEF1B represents a primary function of TCTP.
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Affiliation(s)
- Huiwen Wu
- From the National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, the University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weibin Gong
- From the National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101
| | - Xingzhe Yao
- the University of Chinese Academy of Sciences, Beijing 100049, China the Qingdao Engineering Laboratory of Single Cell Oil and Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266101, and
| | - Jinfeng Wang
- From the National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101
| | - Sarah Perrett
- From the National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101,
| | - Yingang Feng
- the Qingdao Engineering Laboratory of Single Cell Oil and Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266101, and
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Breuer E, Efferth T. Treatment of Iron-Loaded Veterinary Sarcoma by Artemisia annua. NATURAL PRODUCTS AND BIOPROSPECTING 2014; 4:113-8. [PMID: 24859473 PMCID: PMC4004853 DOI: 10.1007/s13659-014-0013-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Accepted: 04/01/2014] [Indexed: 05/30/2023]
Abstract
Artemisinin, a constituent of Artemisia annua L., is a well-known antimalarial drug. Artemisinin-type drugs also inhibit cancer growth in vitro and in vivo. Herbal extracts of A. annua inhibit the growth of cancer cell lines. Here, we report on the use of capsules containing powder of Herba Artemisiae annuae to treat pet sarcoma. The surgical tumor removal as standard treatment was supplemented by adjuvant therapy with A. annua. One cat and one dog with fibrosarcoma survived 40 and 37 months, respectively, without tumor relapse. Two other dogs suffering from fibrosarcoma and hemangioendothelial sarcoma also showed complete remission and are still alive after 39 and 26 months, respectively. A. annua was well tolerated without noticeable side effects. These four cases indicate that A. annua may be a promising herbal drug for cancer therapy.
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Affiliation(s)
- Elmar Breuer
- Veterinary Clinic for Pets, Müllheim/Baden, Germany
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Mainz, Germany
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Synthesis and study of cytotoxic activity of 1,2,4-trioxane- and egonol-derived hybrid molecules against Plasmodium falciparum and multidrug-resistant human leukemia cells. Eur J Med Chem 2014; 75:403-12. [DOI: 10.1016/j.ejmech.2014.01.043] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 01/17/2014] [Accepted: 01/19/2014] [Indexed: 01/09/2023]
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The Plasmodium falciparum translationally controlled tumor protein (TCTP) is incorporated more efficiently into B cells than its human homologue. PLoS One 2014; 9:e85514. [PMID: 24465583 PMCID: PMC3894975 DOI: 10.1371/journal.pone.0085514] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Accepted: 11/27/2013] [Indexed: 12/13/2022] Open
Abstract
Plasmodium falciparum secretes a homologue of the translationally controlled tumor protein (TCTP) into serum of infected individuals, although its role in pathogenesis or virulence is unknown. To determine the effect of P. falciparum TCTP on B cells as compared to human TCTP, fluorescently labeled proteins were incubated on primary cultures of mouse splenic B cells and analyzed by flow cytometry and confocal microscopy. Our results indicate that both recombinant proteins are incorporated into B cells, but differ significantly in their rate and percentage of incorporation, being significantly higher for P. falciparum TCTP. Furthermore, P. falciparum TCTP showed a lower B cell proliferative effect than human TCTP, suggesting a mechanism through which the former could interfere in the host's immune response.
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Ariey F, Witkowski B, Amaratunga C, Beghain J, Langlois AC, Khim N, Kim S, Duru V, Bouchier C, Ma L, Lim P, Leang R, Duong S, Sreng S, Suon S, Chuor CM, Bout DM, Ménard S, Rogers WO, Genton B, Fandeur T, Miotto O, Ringwald P, Le Bras J, Berry A, Barale JC, Fairhurst RM, Benoit-Vical F, Mercereau-Puijalon O, Ménard D. A molecular marker of artemisinin-resistant Plasmodium falciparum malaria. Nature 2014; 505:50-5. [PMID: 24352242 PMCID: PMC5007947 DOI: 10.1038/nature12876] [Citation(s) in RCA: 1406] [Impact Index Per Article: 140.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 11/12/2013] [Indexed: 12/24/2022]
Abstract
Plasmodium falciparum resistance to artemisinin derivatives in southeast Asia threatens malaria control and elimination activities worldwide. To monitor the spread of artemisinin resistance, a molecular marker is urgently needed. Here, using whole-genome sequencing of an artemisinin-resistant parasite line from Africa and clinical parasite isolates from Cambodia, we associate mutations in the PF3D7_1343700 kelch propeller domain ('K13-propeller') with artemisinin resistance in vitro and in vivo. Mutant K13-propeller alleles cluster in Cambodian provinces where resistance is prevalent, and the increasing frequency of a dominant mutant K13-propeller allele correlates with the recent spread of resistance in western Cambodia. Strong correlations between the presence of a mutant allele, in vitro parasite survival rates and in vivo parasite clearance rates indicate that K13-propeller mutations are important determinants of artemisinin resistance. K13-propeller polymorphism constitutes a useful molecular marker for large-scale surveillance efforts to contain artemisinin resistance in the Greater Mekong Subregion and prevent its global spread.
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Affiliation(s)
- Frédéric Ariey
- 1] Institut Pasteur, Parasite Molecular Immunology Unit, 75724 Paris Cedex 15, France [2] Centre National de la Recherche Scientifique, Unité de Recherche Associée 2581, 75724 Paris Cedex 15, France [3] Institut Pasteur, Genetics and Genomics of Insect Vectors Unit, 75724 Paris Cedex 15, France (F.A.); Institut Pasteur, Functional Genetics of Infectious Diseases Unit, 75724 Paris Cedex 15, France (J.B.); Centre de Physiopathologie de Toulouse-Purpan, Institut National de la Santé et de la Recherche Médicale UMR1043, Centre National de la Recherche Scientifique UMR5282, Université Toulouse III, 31024 Toulouse Cedex 3, France Institut Pasteur, Unité de Biologie et Génétique du Paludisme, Team Malaria Targets and Drug Development, 75724 Paris Cedex 15, France (J.-C.B.)
| | - Benoit Witkowski
- Institut Pasteur du Cambodge, Malaria Molecular Epidemiology Unit, Phnom Penh, Cambodia
| | - Chanaki Amaratunga
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Johann Beghain
- 1] Institut Pasteur, Parasite Molecular Immunology Unit, 75724 Paris Cedex 15, France [2] Centre National de la Recherche Scientifique, Unité de Recherche Associée 2581, 75724 Paris Cedex 15, France [3] Institut Pasteur, Genetics and Genomics of Insect Vectors Unit, 75724 Paris Cedex 15, France (F.A.); Institut Pasteur, Functional Genetics of Infectious Diseases Unit, 75724 Paris Cedex 15, France (J.B.); Centre de Physiopathologie de Toulouse-Purpan, Institut National de la Santé et de la Recherche Médicale UMR1043, Centre National de la Recherche Scientifique UMR5282, Université Toulouse III, 31024 Toulouse Cedex 3, France Institut Pasteur, Unité de Biologie et Génétique du Paludisme, Team Malaria Targets and Drug Development, 75724 Paris Cedex 15, France (J.-C.B.)
| | - Anne-Claire Langlois
- 1] Institut Pasteur, Parasite Molecular Immunology Unit, 75724 Paris Cedex 15, France [2] Centre National de la Recherche Scientifique, Unité de Recherche Associée 2581, 75724 Paris Cedex 15, France
| | - Nimol Khim
- Institut Pasteur du Cambodge, Malaria Molecular Epidemiology Unit, Phnom Penh, Cambodia
| | - Saorin Kim
- Institut Pasteur du Cambodge, Malaria Molecular Epidemiology Unit, Phnom Penh, Cambodia
| | - Valentine Duru
- Institut Pasteur du Cambodge, Malaria Molecular Epidemiology Unit, Phnom Penh, Cambodia
| | - Christiane Bouchier
- Institut Pasteur, Plate-forme Génomique, Département Génomes et Génétique, 75724 Paris Cedex 15, France
| | - Laurence Ma
- Institut Pasteur, Plate-forme Génomique, Département Génomes et Génétique, 75724 Paris Cedex 15, France
| | - Pharath Lim
- 1] Institut Pasteur du Cambodge, Malaria Molecular Epidemiology Unit, Phnom Penh, Cambodia [2] Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA [3] National Center for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia
| | - Rithea Leang
- National Center for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia
| | - Socheat Duong
- National Center for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia
| | - Sokunthea Sreng
- National Center for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia
| | - Seila Suon
- National Center for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia
| | - Char Meng Chuor
- National Center for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia
| | - Denis Mey Bout
- SSA WHO, Drug Monitoring in Cambodia, National Center for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia
| | - Sandie Ménard
- 1] Service de Parasitologie et Mycologie, Centre Hospitalier Universitaire de Toulouse, 31059 Toulouse Cedex 9, France [2] Institut Pasteur, Genetics and Genomics of Insect Vectors Unit, 75724 Paris Cedex 15, France (F.A.); Institut Pasteur, Functional Genetics of Infectious Diseases Unit, 75724 Paris Cedex 15, France (J.B.); Centre de Physiopathologie de Toulouse-Purpan, Institut National de la Santé et de la Recherche Médicale UMR1043, Centre National de la Recherche Scientifique UMR5282, Université Toulouse III, 31024 Toulouse Cedex 3, France Institut Pasteur, Unité de Biologie et Génétique du Paludisme, Team Malaria Targets and Drug Development, 75724 Paris Cedex 15, France (J.-C.B.)
| | | | - Blaise Genton
- Swiss Tropical and Public Health Institute, 4051 Basel, Switzerland
| | - Thierry Fandeur
- 1] Institut Pasteur, Parasite Molecular Immunology Unit, 75724 Paris Cedex 15, France [2] Institut Pasteur du Cambodge, Malaria Molecular Epidemiology Unit, Phnom Penh, Cambodia
| | - Olivo Miotto
- 1] MRC Centre for Genomics and Global Health, University of Oxford, Oxford OX3 7BN, UK [2] Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok 10400, Thailand [3] Wellcome Trust Sanger Institute, Hinxton, Cambridge CB10 1SA, UK
| | - Pascal Ringwald
- Global Malaria Program, World Health Organization, 1211 Geneva, Switzerland
| | - Jacques Le Bras
- Centre National de Référence du Paludisme, CHU Bichat-Claude Bernard, APHP, PRES Sorbonne Paris Cité, 75018 Paris, France
| | - Antoine Berry
- 1] Service de Parasitologie et Mycologie, Centre Hospitalier Universitaire de Toulouse, 31059 Toulouse Cedex 9, France [2] Institut Pasteur, Genetics and Genomics of Insect Vectors Unit, 75724 Paris Cedex 15, France (F.A.); Institut Pasteur, Functional Genetics of Infectious Diseases Unit, 75724 Paris Cedex 15, France (J.B.); Centre de Physiopathologie de Toulouse-Purpan, Institut National de la Santé et de la Recherche Médicale UMR1043, Centre National de la Recherche Scientifique UMR5282, Université Toulouse III, 31024 Toulouse Cedex 3, France Institut Pasteur, Unité de Biologie et Génétique du Paludisme, Team Malaria Targets and Drug Development, 75724 Paris Cedex 15, France (J.-C.B.)
| | - Jean-Christophe Barale
- 1] Institut Pasteur, Parasite Molecular Immunology Unit, 75724 Paris Cedex 15, France [2] Centre National de la Recherche Scientifique, Unité de Recherche Associée 2581, 75724 Paris Cedex 15, France [3] Institut Pasteur, Genetics and Genomics of Insect Vectors Unit, 75724 Paris Cedex 15, France (F.A.); Institut Pasteur, Functional Genetics of Infectious Diseases Unit, 75724 Paris Cedex 15, France (J.B.); Centre de Physiopathologie de Toulouse-Purpan, Institut National de la Santé et de la Recherche Médicale UMR1043, Centre National de la Recherche Scientifique UMR5282, Université Toulouse III, 31024 Toulouse Cedex 3, France Institut Pasteur, Unité de Biologie et Génétique du Paludisme, Team Malaria Targets and Drug Development, 75724 Paris Cedex 15, France (J.-C.B.)
| | - Rick M Fairhurst
- 1] Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA [2]
| | - Françoise Benoit-Vical
- 1] Centre National de la Recherche Scientifique, Laboratoire de Chimie de Coordination UPR8241, 31077 Toulouse Cedex 4, France [2] Université de Toulouse, UPS, Institut National Polytechnique de Toulouse, 31077 Toulouse Cedex 4, France [3]
| | - Odile Mercereau-Puijalon
- 1] Institut Pasteur, Parasite Molecular Immunology Unit, 75724 Paris Cedex 15, France [2] Centre National de la Recherche Scientifique, Unité de Recherche Associée 2581, 75724 Paris Cedex 15, France [3]
| | - Didier Ménard
- 1] Institut Pasteur du Cambodge, Malaria Molecular Epidemiology Unit, Phnom Penh, Cambodia [2]
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Gutiérrez-Galeano DF, Toscano-Morales R, Calderón-Pérez B, Xoconostle-Cázares B, Ruiz-Medrano R. Structural divergence of plant TCTPs. FRONTIERS IN PLANT SCIENCE 2014; 5:361. [PMID: 25120549 PMCID: PMC4114181 DOI: 10.3389/fpls.2014.00361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 07/07/2014] [Indexed: 05/02/2023]
Abstract
The Translationally Controlled Tumor Protein (TCTP) is a highly conserved protein at the level of sequence, considered to play an essential role in the regulation of growth and development in eukaryotes. However, this function has been inferred from studies in a few model systems, such as mice and mammalian cell lines, Drosophila and Arabidopsis. Thus, the knowledge regarding this protein is far from complete. In the present study bioinformatic analysis showed the presence of one or more TCTP genes per genome in plants with highly conserved signatures and subtle variations at the level of primary structure but with more noticeable differences at the level of predicted three-dimensional structures. These structures show differences in the "pocket" region close to the center of the protein and in its flexible loop domain. In fact, all predictive TCTP structures can be divided into two groups: (1) AtTCTP1-like and (2) CmTCTP-like, based on the predicted structures of an Arabidopsis TCTP and a Cucurbita maxima TCTP; according to this classification we propose that their probable function in plants may be inferred in principle. Thus, different TCTP genes in a single organism may have different functions; additionally, in those species harboring a single TCTP gene this could carry multiple functions. On the other hand, in silico analysis of AtTCTP1-like and CmTCTP-like promoters suggest that these share common motifs but with different abundance, which may underscore differences in their gene expression patterns. Finally, the absence of TCTP genes in most chlorophytes with the exception of Coccomyxa subellipsoidea, indicates that other proteins perform the roles played by TCTP or the pathways regulated by TCTP occur through alternative routes. These findings provide insight into the evolution of this gene family in plants.
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Affiliation(s)
| | | | | | | | - Roberto Ruiz-Medrano
- *Correspondence: Roberto Ruiz-Medrano, Department of Biotechnology and Bioengineering, CINVESTAV-IPN, Ave., IPN 2508, Zacatenco, 07360 Mexico DF, Mexico e-mail:
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