1
|
Solano-Gálvez SG, Gutiérrez-Kobeh L, Wilkins-Rodríguez AA, Vázquez-López R. Artemisinin: An Anti-Leishmania Drug that Targets the Leishmania Parasite and Activates Apoptosis of Infected Cells. Arch Med Res 2024; 55:103041. [PMID: 38996535 DOI: 10.1016/j.arcmed.2024.103041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 06/11/2024] [Accepted: 06/28/2024] [Indexed: 07/14/2024]
Abstract
Leishmaniasis is a relevant disease worldwide due to its presence in many countries and an estimated prevalence of 10 million people. The causative agent of this disease is the obligate intracellular parasite Leishmania which can infect different cell types. Part of its success depends on its ability to evade host defense mechanisms such as apoptosis. Apoptosis is a finely programmed process of cell death in which cells silently dismantle and actively participate in several processes such as immune response, differentiation, and cell growth. Leishmania has the ability to delay its initiation to persist in the cell. It has been well documented that different Leishmania species target different pathways that lead to apoptosis of cells such as macrophages, neutrophils, and dendritic cells. In many cases, the observed anti-apoptotic effect has been associated with a significant reduction in caspase-3 activity. Leishmania has also been shown to target several pathways involved in apoptosis such as MAPK, PI3K/Akt, and the antiapoptotic protein Bcl-xL. Understanding the strategies used by Leishmania to subvert the defense mechanisms of host cells, particularly apoptosis, is very relevant for the development of therapies and vaccines. In recent years, the drug artemisinin has been shown to be effective against several parasitic diseases. Its role against Leishmania may be promising. In this review, we provide important aspects of the disease, the strategies used by the parasite to suppress apoptosis, and the role of artemisinin in Leishmania infection.
Collapse
Affiliation(s)
- Sandra Georgina Solano-Gálvez
- Unidad de Investigación, División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Laila Gutiérrez-Kobeh
- Unidad de Investigación, División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Arturo A Wilkins-Rodríguez
- Unidad de Investigación, División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Rosalino Vázquez-López
- Departamento de Microbiología, Centro de Investigación en Ciencias de la Salud, Facultad de Ciencias de la Salud Universidad Anáhuac México Norte, Huixquilucan, Estado de México, Mexico.
| |
Collapse
|
2
|
Lin X, Lin T, Liu M, Chen D, Chen J. Liensinine diperchlorate and artemisitene synergistically attenuate breast cancer progression through suppressing PI3K-AKT signaling and their efficiency in breast cancer patient-derived organoids. Biomed Pharmacother 2024; 176:116871. [PMID: 38861856 DOI: 10.1016/j.biopha.2024.116871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/16/2024] [Accepted: 06/03/2024] [Indexed: 06/13/2024] Open
Abstract
Breast cancer (BC) is the most prevalent cancer among women around the world. Finding new and efficient drugs has become a crucial aspect of BC treatment. Liensinine diperchlorate (LIN) and artemisitene (ATT) are natural compounds with potential anti-cancer activities extracted from lotus (Nelumbo nucifera Gaertn) seeds and Artemisia annua, respectively. However, the synergistic anti-breast cancer effectiveness and mechanism of LIN and ATT remain unknown. This study intended to reveal the biological functions and underlying mechanism of combined LIN and ATT treatment in BC. Herein, we first reported that LIN and ATT synergistically mitigated the proliferation, migration as well as invasion of BC cells. Besides, LIN boosted the stimulatory effect of ATT on reactive oxygen species (ROS)-mediated apoptosis in BC cells. Interestingly, LIN and ATT synergistically attenuated the growth of BC patient-derived organoids. Moreover, LIN augmented the inhibitory efficacy of ATT on BC growth in vivo without obvious side effects. Furthermore, the inactivation of PI3K-AKT pathway and its regulated proteins contributed to the therapeutic role of LIN and ATT treatment in BC. Intriguingly, a prediction model constructed as per RNA sequencing data indicated that the combination of LIN and ATT treatment might ameliorate the prognosis of BC patients. In conclusion, our present investigation demonstrated that LIN and ATT synergistically inhibited BC cell proliferation, migration as well as invasion and enhanced ROS-mediated apoptosis via suppressing the PI3K-AKT signaling, and suggested that combining LIN and ATT treatment might be a promising choice for BC therapy.
Collapse
Affiliation(s)
- Xian Lin
- Shenzhen Key Laboratory of Inflammatory and Immunology Diseases, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, China
| | - Tengyu Lin
- Shenzhen Key Laboratory of Inflammatory and Immunology Diseases, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, China
| | - Meng Liu
- Shenzhen Key Laboratory of Inflammatory and Immunology Diseases, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, China
| | - Dong Chen
- Department of Thyroid and Breast Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, China.
| | - Jian Chen
- Shenzhen Key Laboratory of Inflammatory and Immunology Diseases, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, China.
| |
Collapse
|
3
|
Rathi K, Shukla M, Hassam M, Shrivastava R, Rawat V, Prakash Verma V. Recent advances in the synthesis and antimalarial activity of 1,2,4-trioxanes. Bioorg Chem 2024; 143:107043. [PMID: 38134523 DOI: 10.1016/j.bioorg.2023.107043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/29/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023]
Abstract
The increasing resistance of various malarial parasite strains to drugs has made the production of a new, rapid-acting, and efficient antimalarial drug more necessary, as the demand for such drugs is growing rapidly. As a major global health concern, various methods have been implemented to address the problem of drug resistance, including the hybrid drug concept, combination therapy, the development of analogues of existing medicines, and the use of drug resistance reversal agents. Artemisinin and its derivatives are currently used against multidrug- resistant P. falciparum species. However, due to its natural origin, its use has been limited by its scarcity in natural resources. As a result, finding a substitute becomes more crucial, and the peroxide group in artemisinin, responsible for the drugs biological action in the form of 1,2,4-trioxane, may hold the key to resolving this issue. The literature suggests that 1,2,4-trioxanes have the potential to become an alternative to current malaria drugs, as highlighted in this review. This is why 1,2,4-trioxanes and their derivatives have been synthesized on a large scale worldwide, as they have shown promising antimalarial activity in vivo and in vitro against Plasmodium species. Consequently, the search for a more convenient, environment friendly, sustainable, efficient, and effective synthetic pathway for the synthesis of 1,2,4-trioxanes continues. The aim of this work is to provide a comprehensive analysis of the synthesis and mechanism of action of 1,2,4-trioxanes. This systematic review highlights the most recent summaries of derivatives of 1,2,4-trioxane compounds and dimers with potential antimalarial activity from January 1988 to 2023.
Collapse
Affiliation(s)
- Komal Rathi
- Department of Chemistry, Banasthali University, Banasthali Newai 304022, Rajasthan, India
| | - Monika Shukla
- Department of Chemistry, Banasthali University, Banasthali Newai 304022, Rajasthan, India
| | | | - Rahul Shrivastava
- Department of Chemistry, Manipal University Jaipur, Jaipur (Rajasthan), VPO- Dehmi-Kalan, Off Jaipur-Ajmer Express Way, Jaipur, Rajasthan 30300, India
| | - Varun Rawat
- School of Chemistry, Tel Aviv University, Tel Aviv 6997801, Israel.
| | - Ved Prakash Verma
- Department of Chemistry, Banasthali University, Banasthali Newai 304022, Rajasthan, India.
| |
Collapse
|
4
|
Nabi N, Singh S, Saffeullah P. An updated review on distribution, biosynthesis and pharmacological effects of artemisinin: A wonder drug. PHYTOCHEMISTRY 2023; 214:113798. [PMID: 37517615 DOI: 10.1016/j.phytochem.2023.113798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 07/19/2023] [Accepted: 07/24/2023] [Indexed: 08/01/2023]
Abstract
Plant-based drugs have been used for centuries for treating different ailments. Malaria, one of the prevalent threats in many parts of the world, is treated mainly by artemisinin-based drugs derived from plants of genus Artemisia. However, the distribution of artemisinin is restricted to a few species of the genus; besides, its yield depends on ontogeny and the plant's geographical location. Here, we review the studies focusing on biosynthesis and distributional pattern of artemisinin production in species of the genus Artemisia. We also discussed various agronomic and in vitro methods and molecular approaches to increase the yield of artemisinin. We have summarized different mechanisms of artemisinin involved in its anti-malarial, anti-cancer, anti-inflammatory and anti-viral activities (like against Covid-19). Overall the current review provides a synopsis of a global view of the distribution of artemisinin, its biosynthesis, and pharmacological potential in treating various diseases like malaria, cancer, and coronavirus, which may provoke future research efforts in drug development. Nevertheless, long-term trials and molecular approaches, like CRISPR-Cas, are required for in-depth research.
Collapse
Affiliation(s)
- Neelofer Nabi
- Department of Botany, University of Kashmir, Srinagar, Jammu and Kashmir, 190006, India
| | - Seema Singh
- Department of Botany, University of Kashmir, Srinagar, Jammu and Kashmir, 190006, India
| | - Peer Saffeullah
- Department of Botany, Jamia Hamdard, New Delhi, 110062, India.
| |
Collapse
|
5
|
Lin X, Chen J. Artemisitene: a promising natural drug candidate with various biological activities needs to confirm the interactional targets. Front Pharmacol 2023; 14:1221291. [PMID: 37397487 PMCID: PMC10308078 DOI: 10.3389/fphar.2023.1221291] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 06/09/2023] [Indexed: 07/04/2023] Open
Affiliation(s)
- Xian Lin
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen, China
- Institute of Immunology and Inflammatory Diseases, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, China
- Shenzhen Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen, China
| | - Jian Chen
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen, China
- Institute of Immunology and Inflammatory Diseases, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, China
- Shenzhen Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen, China
| |
Collapse
|
6
|
Bridging the Gap in Malaria Parasite Resistance, Current Interventions, and the Way Forward from in Silico Perspective: A Review. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227915. [PMID: 36432016 PMCID: PMC9692793 DOI: 10.3390/molecules27227915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/07/2022] [Accepted: 11/13/2022] [Indexed: 11/18/2022]
Abstract
The past decade has seen most antimalarial drugs lose their clinical potency stemming from parasite resistance. Despite immense efforts by researchers to mitigate this global scourge, a breakthrough is yet to be achieved, as most current malaria chemotherapies suffer the same fate. Though the etiology of parasite resistance is not well understood, the parasite's complex life has been implicated. A drug-combination therapy with artemisinin as the central drug, artemisinin-based combination therapy (ACT), is currently the preferred malaria chemotherapy in most endemic zones. The emerging concern of parasite resistance to artemisinin, however, has compromised this treatment paradigm. Membrane-bound Ca2+-transporting ATPase and endocytosis pathway protein, Kelch13, among others, are identified as drivers in plasmodium parasite resistance to artemisinin. To mitigate parasite resistance to current chemotherapy, computer-aided drug design (CADD) techniques have been employed in the discovery of novel drug targets and the development of small molecule inhibitors to provide an intriguing alternative for malaria treatment. The evolution of plasmepsins, a class of aspartyl acid proteases, has gained tremendous attention in drug discovery, especially the non-food vacuole. They are expressed at multi-stage of the parasite's life cycle and involve in hepatocytes' egress, invasion, and dissemination of the parasite within the human host, further highlighting their essentiality. In silico exploration of non-food vacuole plasmepsin, PMIX and PMX unearthed the dual enzymatic inhibitory mechanism of the WM382 and 49c, novel plasmepsin inhibitors presently spearheading the search for potent antimalarial. These inhibitors impose structural compactness on the protease, distorting the characteristic twist motion. Pharmacophore modeling and structure activity of these compounds led to the generation of hits with better affinity and inhibitory prowess towards PMIX and PMX. Despite these headways, the major obstacle in targeting PM is the structural homogeneity among its members and to human Cathepsin D. The incorporation of CADD techniques described in the study at early stages of drug discovery could help in selective inhibition to augment malaria chemotherapy.
Collapse
|
7
|
Silva CFM, Pinto DCGA, Fernandes PA, Silva AMS. Evolution of Acridines and Xanthenes as a Core Structure for the Development of Antileishmanial Agents. Pharmaceuticals (Basel) 2022; 15:ph15020148. [PMID: 35215261 PMCID: PMC8879592 DOI: 10.3390/ph15020148] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/24/2022] [Accepted: 01/24/2022] [Indexed: 02/06/2023] Open
Abstract
Nowadays, leishmaniasis constitutes a public health issue in more than 88 countries, affecting mainly people from the tropics, subtropics, and the Mediterranean area. Every year, the prevalence of this infectious disease increases, with the appearance of 1.5–2 million new cases of cutaneous leishmaniasis and 500,000 cases of visceral leishmaniasis, endangering approximately 350 million people worldwide. Therefore, the absence of a vaccine or effective treatment makes the discovery and development of new antileishmanial therapies one of the focuses for the scientific community that, in association with WHO, hopes to eradicate this disease shortly. This paper is intended to highlight the relevance of nitrogen- and oxygen-containing tricyclic heterocycles, particularly acridine and xanthene derivatives, for the development of treatments against leishmaniasis. Thus, in this review, a thorough compilation of the most promising antileishmanial acridine and xanthene derivatives is performed from both natural and synthetic origins. Additionally, some structure–activity relationship studies are also depicted and discussed to provide insight into the optimal structural features responsible for these compounds’ antileishmanial activity.
Collapse
Affiliation(s)
- Carlos F. M. Silva
- LAQV-REQUIMTE & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (C.F.M.S.); (A.M.S.S.)
| | - Diana C. G. A. Pinto
- LAQV-REQUIMTE & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (C.F.M.S.); (A.M.S.S.)
- Correspondence:
| | - Pedro A. Fernandes
- UCIBIO, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, Portugal;
| | - Artur M. S. Silva
- LAQV-REQUIMTE & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (C.F.M.S.); (A.M.S.S.)
| |
Collapse
|
8
|
Chung IY, Jang HJ, Yoo YJ, Hur J, Oh HY, Kim SH, Cho YH. Artemisinin displays bactericidal activity via copper-mediated DNA damage. Virulence 2022; 13:149-159. [PMID: 34983312 PMCID: PMC8741286 DOI: 10.1080/21505594.2021.2021643] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Artemisinin (ARS) and its semi-synthetic derivatives are effective drugs to treat malaria and possess multiple therapeutic activities based on their endoperoxide bridge. Here, we showed that ARS displayed antibacterial efficacy in Drosophila systemic infections caused by bacterial pathogens but killed only Vibrio cholerae (VC) in vitro, involving reactive oxygen species (ROS) generation and/or DNA damage. This selective antibacterial activity of ARS was attributed to the higher intracellular copper levels in VC, in that the antibacterial activity was observed in vitro upon addition of cuprous ions even against other bacteria and was compromised by the copper-specific chelators neocuproine (NC) and triethylenetetramine (TETA) in vitro and in vivo. We suggest that copper can enhance or reinforce the therapeutic activities of ARS to be repurposed as an antibacterial drug for the treatment of bacterial infections.
Collapse
Affiliation(s)
- In-Young Chung
- Department of Pharmacy, College of Pharmacy and Institute of Pharmaceutical Sciences, Cha University, Gyeonggi-do, Korea
| | - Hye-Jeong Jang
- Department of Pharmacy, College of Pharmacy and Institute of Pharmaceutical Sciences, Cha University, Gyeonggi-do, Korea
| | - Yeon-Ji Yoo
- Department of Pharmacy, College of Pharmacy and Institute of Pharmaceutical Sciences, Cha University, Gyeonggi-do, Korea
| | - Joonseong Hur
- Department of Pharmacy, College of Pharmacy and Institute of Pharmaceutical Sciences, Cha University, Gyeonggi-do, Korea
| | - Hyo-Young Oh
- Department of Pharmacy, College of Pharmacy and Institute of Pharmaceutical Sciences, Cha University, Gyeonggi-do, Korea
| | - Seok-Ho Kim
- Department of Pharmacy, College of Pharmacy and Institute of Pharmaceutical Sciences, Cha University, Gyeonggi-do, Korea
| | - You-Hee Cho
- Department of Pharmacy, College of Pharmacy and Institute of Pharmaceutical Sciences, Cha University, Gyeonggi-do, Korea
| |
Collapse
|
9
|
Rahnama V, Motazedian MH, Mohammadi-Samani S, Asgari Q, Ghasemiyeh P, Khazaei M. Artemether-loaded nanostructured lipid carriers: preparation, characterization, and evaluation of in vitro effect on Leishmania major. Res Pharm Sci 2021; 16:623-633. [PMID: 34760010 PMCID: PMC8562414 DOI: 10.4103/1735-5362.327508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 05/18/2021] [Accepted: 08/25/2021] [Indexed: 11/04/2022] Open
Abstract
Background and purpose Cutaneous leishmaniasis is a global health problem. The discovery of new and highly efficient anti-leishmanial treatments with lower toxicity is globally needed. The current study was carried out to evaluate the anti-leishmanial effects of artemether (ART) and ART-loaded nanostructured lipid carriers (ART-NLCs) against promastigotes and amastigotes of Leishmania major. Experimental approach Solvent diffusion evaporation technique was applied to prepare ART-NLCs. These nanoparticles were characterized using a particle size analyzer (PSA), transmission electron microscopy (TEM), and dynamic light scattering (DLS). The antiparasitic activity on amastigote was assessed in J774 cell culture. The drug cytotoxicity on promastigote and macrophage was assessed using the MTT technique after 24 and 48 h and compared with NLCs, ART, and amphotericin B, as the control agents. The selectivity index was calculated for the agents. Findings/Results The DLS and PSA techniques confirmed that ART-NLCs were homogenous in size with an average diameter of 101 ± 2.0 nm and span index of 0.9. The ART-NLCs significantly heighten the anti-leishmanial activity of ART (P < 0.001). The IC50 values of ART and ART-NLCs on promastigotes after 24 and 48 h were 76.08, 36.71 and 35.14, 14.81 μg/mL, respectively while they were calculated 53.97, 25.43 and 20.13, 11.92 for amastigotes. Also, ART-NLCs had the lowest cytotoxicity against macrophages. Furthermore, among the agents tested, ART-NLCs had the highest selectivity index. Conclusion and implications ART-NLCs had lower cytotoxic effects than ART and amphotericin B, also its selectivity index was significantly higher. Based on the findings of the study, this formulation could be a promising candidate for further research into leishmaniasis treatment.
Collapse
Affiliation(s)
- Vahid Rahnama
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
| | - Mohammad Hossein Motazedian
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, I.R. Iran.,Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
| | - Soliman Mohammadi-Samani
- Department of Pharmaceutics, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, I.R. Iran.,Center for Nanotechnology in Drug Delivery, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
| | - Qasem Asgari
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
| | - Parisa Ghasemiyeh
- Department of Pharmaceutics, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, I.R. Iran.,Department of Clinical Pharmacy, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
| | - Meisam Khazaei
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
| |
Collapse
|
10
|
Electrospun Nanofibers of Polycaprolactone/Collagen as a Sustained-Release Drug Delivery System for Artemisinin. Pharmaceutics 2021; 13:pharmaceutics13081228. [PMID: 34452189 PMCID: PMC8402154 DOI: 10.3390/pharmaceutics13081228] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/04/2021] [Accepted: 08/05/2021] [Indexed: 11/23/2022] Open
Abstract
The application of artemisinin (ART) in the treatment of malaria has been restricted to a certain degree due to its inherent limitations, such as short half-life, poor solubility, limited bioavailability, and re-crystallization. Electrospun nanofibers loaded with ART provide an excellent solution to these limitations and yield sustained drug release as well as inhibition of drug re-crystallization. In this study, ART-loaded polycaprolactone (PCL)/collagen (Col) nanofibers with different proportions of polymers were prepared. ART-loaded PCL/Col nanofibers were characterized, and further ART anti-crystallization and release behaviors were studied. SEM was used to observe the morphology of PCL/Col nanofibers. X-ray diffraction (XRD) was used to characterize the physical state of ART in ART-loaded PCL/Col nanofibers. Fourier transform infrared spectroscopy (FTIR), water contact angle measurement, weight loss, degree of swelling, and drug release experiments can verify the differences in performance of ART-loaded PCL/Col nanofibers due to different polymer ratios. The release curve was analyzed by kinetics, showing sustained release for up to 48 h, and followed the Fickian release mechanism, which was shown by the diffusion index value obtained from the Korsmeyer-Peppas equation.
Collapse
|
11
|
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.
Collapse
|
12
|
Dighal A, De Sarkar S, Gille L, Chatterjee M. Can the iron content of culture media impact on the leishmanicidal effect of artemisinin? Free Radic Res 2021; 55:282-295. [PMID: 34121571 DOI: 10.1080/10715762.2021.1939325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Endoperoxides (EPs) like artemisinin following cleavage of their EP bridge can kill parasites via generation of carbon-centered radicals. As the presence of low molecular mass iron and/or heme is crucial, this study aimed to establish the influence of iron on the leishmanicidal action of artemisinin when present in differing amounts in culture media. In promastigotes cultured in Schneiders insect medium (SIM), that had a 8.0-fold higher amount of iron as compared to Medium 199 (M199), the impact of artemisinin on cell viability, redox status, labile iron pool (LIP), and Annexin-V positivity was evaluated. In SIM, the IC50 of artemisinin was 25.50-fold lower than M199, and in both media its cytotoxicity was decreased by the addition of hemin or following chelation of Fe2+ by Deferoxamine (DFO). In SIM vis-a-vis M199, artemisinin caused a greater redox imbalance which translated into a higher degree of externalization of phosphatidylserine and depletion of the LIP. The presence of a higher proportion of iron in SIM as compared to M199 significantly enhanced the cytotoxicity of artemisinin in Leishmania promastigotes, and was attributed to a higher degree of iron-mediated cleavage of its EP bridge that led to a higher generation of free radicals.
Collapse
Affiliation(s)
- Aishwarya Dighal
- Department of Pharmacology, Institute of Postgraduate Medical Education and Research, Kolkata, India
| | - Sritama De Sarkar
- Department of Pharmacology, Institute of Postgraduate Medical Education and Research, Kolkata, India
| | - Lars Gille
- Department of Biomedical Sciences, Institute of Pharmacology and Toxicology, University of Veterinary Medicine, Vienna, Austria
| | - Mitali Chatterjee
- Department of Pharmacology, Institute of Postgraduate Medical Education and Research, Kolkata, India
| |
Collapse
|
13
|
Zhou Y, Li X, Chen K, Ba Q, Zhang X, Li J, Wang J, Wang H, Liu H. Structural optimization and biological evaluation for novel artemisinin derivatives against liver and ovarian cancers. Eur J Med Chem 2020; 211:113000. [PMID: 33261896 DOI: 10.1016/j.ejmech.2020.113000] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 11/04/2020] [Accepted: 11/05/2020] [Indexed: 12/13/2022]
Abstract
An increasing number of artemisinin (ARS) and its derivatives have been reported for their potential therapeutic value of human cancer. However, their therapeutic potencies are limited owing to their poor pharmacokinetic profiles. Our previous studies showed that a lead compound ARS4 originated from incorporating the pharmacophore of the approved chemotherapeutic agent melphalan into the basic skeleton of artemisinin with a succinic linker exhibited an excellent toxicity to human ovarian cancer cells and low cytotoxicity to normal cells. The mechanism studies demonstrated that it inhibited the growth and proliferation of ovarian cancer cells and resulted in S-phase arrest, apoptosis and inhibition of migration. Meanwhile, it exhibited excellent antitumor activities in animal models. Herein, further structure optimization for this lead compound ARS4 was performed and nineteen novel derivatives were designed and synthesized. Among them, compounds 10-12, 15, 16, 18 and 19 demonstrated powerful cytotoxic effects against human liver cancer and ovarian cancer cell lines, with their IC50s below 0.86 μM against Hep3B and A2780 cell lines, which are superior to that of ARS4. Four compounds (11, 15, 16 and 18) were selected to further evaluate their antitumor activities in in vitro and in vivo ovarian and liver cancer models, the results indicated that compound 18 exhibited the best therapeutic effect, not only effectively inhibited the growth of 7404 xenograft and Huh7 xenograft, but also presented a good dose-dependent inhibition toward the growth of A2780 xenograft. Overall, based on these positive results, these novel chemical structures may provide a new inspiration for the discovery of novel antitumor agents originated from artemisinin scaffolds.
Collapse
Affiliation(s)
- Yu Zhou
- Chinese Academy of Sciences, State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai, PR China; University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing, 100049, PR China
| | - Xiaoguang Li
- State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China
| | - Kerong Chen
- Chinese Academy of Sciences, State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai, PR China
| | - Qian Ba
- State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China
| | - Xu Zhang
- Chinese Academy of Sciences, State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai, PR China
| | - Jingquan Li
- State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China
| | - Jinfang Wang
- Chinese Academy of Sciences, State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai, PR China; University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing, 100049, PR China
| | - Hui Wang
- State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China.
| | - Hong Liu
- Chinese Academy of Sciences, State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai, PR China; University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing, 100049, PR China.
| |
Collapse
|
14
|
In vitro efficacy of synthesized artemisinin derivatives against Leishmania promastigotes. Bioorg Med Chem Lett 2020; 30:127581. [DOI: 10.1016/j.bmcl.2020.127581] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 09/18/2020] [Accepted: 09/22/2020] [Indexed: 01/22/2023]
|
15
|
Machín L, Nápoles R, Gille L, Monzote L. Leishmania amazonensis response to artemisinin and derivatives. Parasitol Int 2020; 80:102218. [PMID: 33137506 DOI: 10.1016/j.parint.2020.102218] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 08/26/2020] [Accepted: 08/27/2020] [Indexed: 12/18/2022]
Abstract
The worldwide presence of Leishmania parasites increases in the poorest regions. Current leishmaniasis treatments are unsatisfactory due to resistance development, side effects and cost. Herein, we describe the in vitro activity of artemisinin (ART), artemether (ATM), artesunate (ATS) and dihydroartemisinin (DHA) against Leishmania amazonensis. Selected compounds were assayed in the animal model of cutaneous leishmaniasis in BALB/c mice. On intracellular amastigotes, similar activity (p > 0.05) was observed for ART, ATM and ATS (IC50 = 15.0-19.2 μM), which were inferior (p < 0.05) respect to reference endoperoxide ascaridole (IC50 = 11.5 ± 1.0 μM) and superior (p < 0.05) compared with reference drug Glucantime® (IC50 = 30.1 ± 9.0 μM). In contrast, DHA (IC50 = 38.5 ± 4.7 μM) showed higher IC50 values (p < 0.05) than other artemisinins and ascaridole, but similar (p > 0.05) than Glucantime®; while deoxyartemisinin caused smaller inhibition (IC50 = 88.9 ± 5.2 μM). Selectivity indexes of >13, 6, 11 and 1 were obtained for ART, ATM, ATS and DHA, respectively. In addition, the potential effect of ART and ATS was also demonstrated in the murine model, causing a significant reduction (p < 0.05) of the lesion size and parasite load regarding untreated animals and treated with vehicle. Effects of both artemisinins were comparable (p > 0.05) with Glucantime® and ascaridole-treated mice. In particular, artemisinin is recommended to further studies, which could be an advantage over the ascaridole endoperoxide and could be useful in endemic areas of parasite resistance to antimonials.
Collapse
Affiliation(s)
- Laura Machín
- Department of Pharmacy, Institute of Pharmacy and Foods Sciences, University of Havana, Street 222, e/ 23 y 29, # 2317, La Coronela. La Lisa, Havana, Cuba
| | - Rachel Nápoles
- Department of Pharmacy, Institute of Pharmacy and Foods Sciences, University of Havana, Street 222, e/ 23 y 29, # 2317, La Coronela. La Lisa, Havana, Cuba
| | - Lars Gille
- Institute of Pharmacology and Toxicology, Department of Biomedical Sciences, University of Veterinary Medicine, Veterinaerplatz 1, 1210 Vienna, Austria
| | - Lianet Monzote
- Parasitology Department, Institute of Tropical Medicine "Pedro Kouri", Autopista Novia del Mediodía Km 6 1/2. La Lisa, Havana, Cuba.
| |
Collapse
|
16
|
Medrán NS, Sayé M, Pereira CA, Tekwani BL, La-Venia A, Labadie GR. Expanding the scope of synthetic 1,2,4-trioxanes towards Trypanosoma cruzi and Leishmania donovani. Bioorg Med Chem Lett 2020; 30:127491. [PMID: 32795626 DOI: 10.1016/j.bmcl.2020.127491] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 08/07/2020] [Accepted: 08/09/2020] [Indexed: 01/29/2023]
Abstract
A series of synthetic 1,2,4-trioxanes related to artemisinin was tested against L. donovani and T. cruzi parasites. This screening identified some active compounds, with key common structural features. Interestingly, these selected trioxanes were efficient against both parasites, and achieved antiparasitic activities comparable or superior than those presented by the corresponding reference drugs, artemisinin and artesunate. This study represents the first example of synthetic trioxanes evaluated on T. cruzi and provides possible candidates for developing new drugs for the treatment of leishmaniasis and Chagas disease.
Collapse
Affiliation(s)
- Noelia S Medrán
- Instituto de Química Rosario (IQUIR-CONICET), Universidad Nacional de Rosario-CONICET, Suipacha 531, S2002LRK Rosario, Argentina; Departamento de Química Orgánica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina
| | - Melisa Sayé
- Universidad de Buenos Aires, Facultad de Medicina, Instituto de Investigaciones Médicas A. Lanari, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Instituto de Investigaciones Médicas (IDIM), Laboratorio de Parasitología Molecular, Buenos Aires, Argentina
| | - Claudio A Pereira
- Universidad de Buenos Aires, Facultad de Medicina, Instituto de Investigaciones Médicas A. Lanari, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Instituto de Investigaciones Médicas (IDIM), Laboratorio de Parasitología Molecular, Buenos Aires, Argentina
| | - Babu L Tekwani
- National Center for Natural Products Research & Department of Pharmacology, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Agustina La-Venia
- Instituto de Química Rosario (IQUIR-CONICET), Universidad Nacional de Rosario-CONICET, Suipacha 531, S2002LRK Rosario, Argentina; Departamento de Química Orgánica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina.
| | - Guillermo R Labadie
- Instituto de Química Rosario (IQUIR-CONICET), Universidad Nacional de Rosario-CONICET, Suipacha 531, S2002LRK Rosario, Argentina; Departamento de Química Orgánica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina.
| |
Collapse
|
17
|
Antolínez IV, Barbosa LCA, Borgati TF, Baldaia A, Ferreira SR, Almeida RM, Fujiwara RT. Tetroxanes as New Agents against Leishmania amazonensis. Chem Biodivers 2020; 17:e2000142. [PMID: 32294320 DOI: 10.1002/cbdv.202000142] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 04/14/2020] [Indexed: 11/06/2022]
Abstract
Leishmaniasis is a neglected disease, caused by a parasite of Leishmania genus and widespread in the tropical and subtropical areas of the world. Currents drugs are limited due to their toxicity and parasite resistance. Therefore, the discovery of new treatment, more effective and less toxic, is urgent. In this study, we report the synthesis of six gem-dihydroperoxides (2a-2f), with yields ranging from 10 % to 90 %, utilizing a new methodology. The dihydroperoxides were converted into ten tetroxanes (3a-3j), among which six (3b, 3c, 3d, 3g, 3h and 3j) showed activity against intracellular amastigotes of Leishmania amazonensis. The cytotoxicity of all compounds was also evaluated against canine macrophages (DH82), human hepatoma (HepG2) and monkey renal cells (BGM). Most compounds were more active and less toxic than potassium antimonyl tartrate trihydrate, used as positive control. Amongst all tetroxanes, 3b (IC50 =0.64 μm) was the most active, being more selective than positive control in relation to DH82, HepG2 and BGM cells. In summary, the results revealed a hit compound for the development of new drugs to treat leishmaniasis.
Collapse
Affiliation(s)
- Isabel V Antolínez
- Department of Chemistry, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627, Campus Pampulha, CEP, 31270-901, Belo Horizonte, MG, Brazil
| | - Luiz C A Barbosa
- Department of Chemistry, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627, Campus Pampulha, CEP, 31270-901, Belo Horizonte, MG, Brazil
| | - Tatiane F Borgati
- Department of Chemistry, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627, Campus Pampulha, CEP, 31270-901, Belo Horizonte, MG, Brazil.,Department of Exact Sciences, State University of Minas Gerais, Av. Paraná, 3001, Jardim Belvedere I, Campus, Divinópolis, CEP, 35501-170, Divinópolis, MG, Brazil
| | - Almodvar Baldaia
- Department of Chemistry, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627, Campus Pampulha, CEP, 31270-901, Belo Horizonte, MG, Brazil
| | - Sebastião R Ferreira
- Health Science Center, Universidade Federal do Sul da Bahia, Praça Joana Angélica, 250 São José, CEP, 45988-058, Teixeira de Freitas, BA, Brazil
| | - Raquel M Almeida
- Department of Parasitology, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627, Campus Pampulha, CEP, 31270-901, Belo Horizonte, MG, Brazil
| | - Ricardo T Fujiwara
- Department of Parasitology, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627, Campus Pampulha, CEP, 31270-901, Belo Horizonte, MG, Brazil
| |
Collapse
|
18
|
Tiwari MK, Chaudhary S. Artemisinin-derived antimalarial endoperoxides from bench-side to bed-side: Chronological advancements and future challenges. Med Res Rev 2020; 40:1220-1275. [PMID: 31930540 DOI: 10.1002/med.21657] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/21/2019] [Accepted: 12/17/2019] [Indexed: 12/14/2022]
Abstract
According to WHO World Malaria Report (2018), nearly 219 million new cases of malaria occurred and a total no. of 435 000 people died in 2017 due to this infectious disease. This is due to the rapid spread of parasite-resistant strains. Artemisinin (ART), a sesquiterpene lactone endoperoxide isolated from traditional Chinese herb Artemisia annua, has been recognized as a novel class of antimalarial drugs. The 2015 "Nobel Prize in Physiology or Medicine" was given to Prof Dr Tu Youyou for the discovery of ART. Hence, ART is termed as "Nobel medicine." The present review article accommodates insights from the chronological advancements and direct statistics witnessed during the past 48 years (1971-2019) in the medicinal chemistry of ART-derived antimalarial endoperoxides, and their clinical utility in malaria chemotherapy and drug discovery.
Collapse
Affiliation(s)
- Mohit K Tiwari
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology Jaipur, Jaipur, India
| | - Sandeep Chaudhary
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology Jaipur, Jaipur, India
| |
Collapse
|
19
|
Molaie S, Ghaffarifar F, Hasan ZM, Dalimi A. Enhancement Effect of Shark Cartilage Extract on Treatment of Leishmania infantum with Artemisinin and Glucantime and Evaluation of killing Factors and Apoptosis in-vitro Condition. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2019; 18:887-902. [PMID: 31531071 PMCID: PMC6706737 DOI: 10.22037/ijpr.2019.1100656] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In this study we examined enhancement effects of Artemisinin plus Glucantime and shark cartilage extract on promastigotes and amastigotes of L.infantum in in-vitro condition.The toxicity of artemisinin, glucantime, and shark cartilage extract on the L. infantum promastigotes and amastigote-infected macrophages was evaluated using MTT assay. The role of these drugs inducing apoptosis in promastigotes, un- infected, and parasite- infected macrophages was also studied. Using promastigote assay, IC50 values of artemisinin and glucantime as standalone drugs as well as in combination were obtained to be 50, 400, and 100µg/mL respectively. The flow cytometry analysis of apoptotic promastigotes stained with Annexin-V FITC staining showed that artemisinin, glucantime, artemisinin plus glucantime, artemisinin plus shark cartilage extract, and shark cartilage extract alone applied at their IC50 concentrations resulted in 53.5%, 73.92%, 64.46%, 49.9%, and 47.34% apoptosis respectively. The results of MTT assay indicated that cytotoxicity of artemisinin, glucantime, artemisinin plus glucantime, shark cartilage plus artemisinin, and shark cartilage in infected macrophages after 72h was 75%, 84%, 82%, 30%, and 3% respectively. In un- infected macrophages, cytotoxicity of Artemisinin, Glucantime, Artemisinin plus Glucantime and shark cartilage was 15%, 31%, 21%, 2%, and 0% respectively.This study suggests that artemisinin, glucantime, artemisinin plus glucantime, and shark cartilage extract have significant killing effects on promastigotes and amastigotes. Also, it proved that artimisinin alone and in combination with glucantime and shark cartilage extract has little toxic effect on macrophages, but could induce apoptosis in L.infantum promastigotes and amastigote-infected macrophages. Thus, these chemicals can be used as alternative drugs for in-vivo studies.
Collapse
Affiliation(s)
- Soheila Molaie
- Department of Parasitology , Faculty of Medical Sciences, Tarbiat Modares University, Tehran, I.R.Iran
| | - Fatemeh Ghaffarifar
- Department of Parasitology , Faculty of Medical Sciences, Tarbiat Modares University, Tehran, I.R.Iran
| | - Zuheir Mohammad Hasan
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, I.R.Iran
| | - Abdolhosein Dalimi
- Department of Parasitology , Faculty of Medical Sciences, Tarbiat Modares University, Tehran, I.R.Iran
| |
Collapse
|
20
|
Molaie S, Ghaffarifar F, Dalimi A, Zuhair MH, Sharifi Z. Evaluation of synergistic therapeutic effect of shark cartilage extract with artemisinin and glucantime on visceral leishmaniasis in BALB/c mice. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2019; 22:146-153. [PMID: 30834079 PMCID: PMC6396994 DOI: 10.22038/ijbms.2018.31124.7504] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 09/22/2018] [Indexed: 11/22/2022]
Abstract
OBJECTIVES Because leishmaniasis is related to the impaired functioning of T-cells, the use of an immunomodulator can increase the efficacy of antileishmanial therapy in visceral leishmaniasis. In this study, we used shark cartilage extract with artemisinin and glucantime against visceral leishmaniasis in BALB/c mice, and evaluated the synergistic therapeutic effect. MATERIALS AND METHODS The culturing method and quantitative real-time PCR by using the kDNA gene was used to detect parasite loads in the spleen and liver. INF-γ and IL-4 cytokine levels and survival rates were assayed. RESULTS The drug therapy with target drugs reduced parasite burden in the spleen and liver significantly. Although parasite burden was lower in the artemisinin treated group than in the glucantime treated group (P<0.05). The mice survival rate records, throughout the experimental period, showed highly significant survival rates in the test groups compared to the control group (P<0.001). The results of cytokine assay in mice treated with glucantime-shark cartilage extract combination indicated significant increases of IFNγ and IL-4 (P<0.05). Although the increase of IFNγ was more notable than IL-4. The synergistic therapeutic effect is shown in all groups except in the group treated with shark cartilage extract-artemisinin combination. The IFN-γ in glucantime-shark cartilage extract combination treated group was higher than in other groups (P<0.05). The survival rate in this group was more than in other groups too (P<0.05). CONCLUSION Combination therapy with shark cartilage extract as an immunomodulator can increase antileishmanial effects of antimony drugs in VL treatment.
Collapse
Affiliation(s)
- Soheila Molaie
- Department of Parasitology, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran
- Deputy of Research, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Fatemeh Ghaffarifar
- Department of Parasitology, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Abdohosein Dalimi
- Department of Parasitology, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mohammad Hassan Zuhair
- Department of Immunology, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Zohreh Sharifi
- Department of Virology, Iranian Blood Transfusion, Tehran, Iran
| |
Collapse
|
21
|
Leishmania treatment and prevention: Natural and synthesized drugs. Eur J Med Chem 2018; 160:229-244. [DOI: 10.1016/j.ejmech.2018.10.022] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 10/08/2018] [Accepted: 10/09/2018] [Indexed: 12/31/2022]
|
22
|
The leishmanicidal activity of artemisinin is mediated by cleavage of the endoperoxide bridge and mitochondrial dysfunction. Parasitology 2018; 146:511-520. [PMID: 30392476 DOI: 10.1017/s003118201800183x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Endoperoxides kill malaria parasites via cleavage of their endoperoxide bridge by haem or iron, leading to generation of cytotoxic oxygen-centred radicals. In view of the Leishmania parasites having a relatively compromised anti-oxidant defense and high iron content, this study aims to establish the underlying mechanism(s) accounting for the apoptotic-like death of Leishmania promastigotes by artemisinin, an endoperoxide. The formation of reactive oxygen species was confirmed by flow cytometry and was accompanied by inhibition of mitochondrial complexes I-III and II-III. However, this did not translate into a generation of mitochondrial superoxide or decrease in oxygen consumption, indicating minimal impairment of the electron transport chain. Artemisinin caused depolarization of the mitochondrial membrane along with a substantial depletion of adenosine triphosphatase (ATP), but it was not accompanied by enhancement of ATP hydrolysis. Collectively, the endoperoxide-mediated radical formation by artemisinin in Leishmania promastigotes was the key step for triggering its antileishmanial activity, leading secondarily to mitochondrial dysfunction indicating that endoperoxides represent a promising therapeutic strategy against Leishmania worthy of pharmacological consideration.
Collapse
|
23
|
Bonepally KR, Hiruma T, Mizoguchi H, Ochiai K, Suzuki S, Oikawa H, Ishiyama A, Hokari R, Iwatsuki M, Otoguro K, O̅mura S, Oguri H. Design and De Novo Synthesis of 6-Aza-artemisinins. Org Lett 2018; 20:4667-4671. [DOI: 10.1021/acs.orglett.8b01987] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Karunakar Reddy Bonepally
- Division of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| | - Takahisa Hiruma
- Division of Chemistry, Graduate School of Science, Hokkaido University, North 10 West 8, Kita-ku, Sapporo 060-0810, Japan
| | - Haruki Mizoguchi
- Division of Chemistry, Graduate School of Science, Hokkaido University, North 10 West 8, Kita-ku, Sapporo 060-0810, Japan
| | - Kyohei Ochiai
- Division of Chemistry, Graduate School of Science, Hokkaido University, North 10 West 8, Kita-ku, Sapporo 060-0810, Japan
| | - Shun Suzuki
- Division of Chemistry, Graduate School of Science, Hokkaido University, North 10 West 8, Kita-ku, Sapporo 060-0810, Japan
| | - Hideaki Oikawa
- Division of Chemistry, Graduate School of Science, Hokkaido University, North 10 West 8, Kita-ku, Sapporo 060-0810, Japan
| | - Aki Ishiyama
- Research Center for Tropical Diseases, Kitasato Institute for Life Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Rei Hokari
- Research Center for Tropical Diseases, Kitasato Institute for Life Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Masato Iwatsuki
- Research Center for Tropical Diseases, Kitasato Institute for Life Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Kazuhiko Otoguro
- Research Center for Tropical Diseases, Kitasato Institute for Life Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Satoshi O̅mura
- Research Center for Tropical Diseases, Kitasato Institute for Life Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hiroki Oguri
- Division of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| |
Collapse
|
24
|
QSAR modeling, docking and ADMET studies for exploration of potential anti-malarial compounds against Plasmodium falciparum. In Silico Pharmacol 2017; 5:6. [PMID: 28726171 DOI: 10.1007/s40203-017-0026-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Accepted: 07/08/2017] [Indexed: 10/19/2022] Open
Abstract
Development of resistance in the Plasmodium falciparum to Artemisinin, the most effective anti-malarial compound, threatens malaria elimination tactics. To gain more efficacious Artemisinin derivatives, QSAR modeling and docking was performed. In the present study, 2D-QSAR model and molecular docking were used to evaluate the Artemisinin compounds and to reveal their binding modes and structural basis of inhibitory activity. Moreover, ADMET-related descriptors have been calculated to predict the pharmacokinetic properties of the effective compounds. The correlation expressed as coefficient of determination (r2) and prediction accuracy expressed in the form of cross-validated r2 (q2) of QSAR model are found 0.9687 and 0.9586, respectively. Total 239 descriptors have been included in the study as independent variables. The four chemical descriptors, namely radius of gyration, mominertia Z, SssNH count and SK Average have been found to be well correlated with anti-malarial activities. The model was statistically robust and has good predictive power which could be employed for virtual screening of proposed anti-malarial compounds. QSAR and docking results revealed that studied compounds exhibit good anti-malarial activities and binding affinities. The outcomes could be useful for the design and development of the potent inhibitors which after optimization can be potential therapeutics for malaria.
Collapse
|
25
|
Karad SN, Pal M, Crowley RS, Prisinzano TE, Altman RA. Synthesis and Opioid Activity of Tyr 1 -ψ[(Z)CF=CH]-Gly 2 and Tyr 1 -ψ[(S)/(R)-CF 3 CH-NH]-Gly 2 Leu-enkephalin Fluorinated Peptidomimetics. ChemMedChem 2017; 12:571-576. [PMID: 28296145 PMCID: PMC5486982 DOI: 10.1002/cmdc.201700103] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 03/13/2017] [Indexed: 12/16/2022]
Abstract
We describe the design, synthesis, and opioid activity of fluoroalkene (Tyr1 -ψ[(Z)CF=CH]-Gly2 ) and trifluoroethylamine (Tyr1 -ψ[(S)/(R)-CF3 CH-NH]-Gly2 ) analogues of the endogenous opioid neuropeptide, Leu-enkephalin. The fluoroalkene peptidomimetic exhibited low nanomolar functional activity (5.0±2 nm and 60±15 nm for δ- and μ-opioid receptors, respectively) with a μ/δ-selectivity ratio that mimics that of the natural peptide. However, the trifluoroethylamine peptidomimetics, irrespective of stereochemistry, did not activate the opioid receptors, which suggest that bulky CF3 substituents are not tolerated at this position.
Collapse
Affiliation(s)
- Somnath Narayan Karad
- Department of Medicinal Chemistry, The University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas, 66045, USA
| | - Mohan Pal
- Department of Medicinal Chemistry, The University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas, 66045, USA
| | - Rachel S Crowley
- Department of Medicinal Chemistry, The University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas, 66045, USA
| | - Thomas E Prisinzano
- Department of Medicinal Chemistry, The University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas, 66045, USA
| | - Ryan A Altman
- Department of Medicinal Chemistry, The University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas, 66045, USA
| |
Collapse
|
26
|
Liu G, Song S, Liu X, Zhang A, Miao Z, Ding C. Novel dihydroisoxazoline-alkyl carbon chain hybrid artemisinin analogues (artemalogs): synthesis and antitumor activities. RSC Adv 2016. [DOI: 10.1039/c6ra17323c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Two new series of dihydroisoxazoline-alkyl carbon chain hybrid artemisinin analogues (artemalogs) were designed and synthesized though a 1,3-dipolar cycloaddition, leading to novel analogues with dramatically improved antiproliferative effects against tumor cells.
Collapse
Affiliation(s)
- Gang Liu
- CAS Key Laboratory of Receptor Research
- Synthetic Organic & Medicinal Chemistry Laboratory
- Shanghai Institute of Materia Medica (SIMM)
- Chinese Academy of Sciences
- Shanghai
| | - Shanshan Song
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica (SIMM)
- Chinese Academy of Sciences
- Shanghai
- China
| | - Xiaohua Liu
- CAS Key Laboratory of Receptor Research
- Synthetic Organic & Medicinal Chemistry Laboratory
- Shanghai Institute of Materia Medica (SIMM)
- Chinese Academy of Sciences
- Shanghai
| | - Ao Zhang
- CAS Key Laboratory of Receptor Research
- Synthetic Organic & Medicinal Chemistry Laboratory
- Shanghai Institute of Materia Medica (SIMM)
- Chinese Academy of Sciences
- Shanghai
| | - Zehong Miao
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica (SIMM)
- Chinese Academy of Sciences
- Shanghai
- China
| | - Chunyong Ding
- CAS Key Laboratory of Receptor Research
- Synthetic Organic & Medicinal Chemistry Laboratory
- Shanghai Institute of Materia Medica (SIMM)
- Chinese Academy of Sciences
- Shanghai
| |
Collapse
|
27
|
Li Z, Gupta MK, Snowden TS. One-Carbon Homologation of Primary Alcohols and the Reductive Homologation of Aldehydes Involving a Jocic-Type Reaction. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501089] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
28
|
α-Alkylidene-γ-butyrolactone synthesis via one-pot C–H insertion/olefination: substrate scope and the total synthesis of (±)-cedarmycins A and B. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.09.054] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
29
|
Denisov ET, Denisova TG. Kinetic analysis of the hydroxyl mechanism of the antimalarial effect of fluorinated artemisinin derivatives. KINETICS AND CATALYSIS 2015. [DOI: 10.1134/s0023158415030040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
30
|
Dried whole-plant Artemisia annua slows evolution of malaria drug resistance and overcomes resistance to artemisinin. Proc Natl Acad Sci U S A 2015; 112:821-6. [PMID: 25561559 DOI: 10.1073/pnas.1413127112] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Pharmaceutical monotherapies against human malaria have proven effective, although ephemeral, owing to the inevitable evolution of resistant parasites. Resistance to two or more drugs delivered in combination will evolve more slowly; hence combination therapies have become the preferred norm in the fight against malaria. At the forefront of these efforts has been the promotion of Artemisinin Combination Therapy, but despite these efforts, resistance to artemisinin has begun to emerge. In 2012, we demonstrated the efficacy of the whole plant (WP)--not a tea, not an infusion--as a malaria therapy and found it to be more effective than a comparable dose of pure artemisinin in a rodent malaria model. Here we show that WP overcomes existing resistance to pure artemisinin in the rodent malaria Plasmodium yoelii. Moreover, in a long-term artificial selection for resistance in Plasmodium chabaudi, we tested resilience of WP against drug resistance in comparison with pure artemisinin (AN). Stable resistance to WP was achieved three times more slowly than stable resistance to AN. WP treatment proved even more resilient than the double dose of AN. The resilience of WP may be attributable to the evolutionary refinement of the plant's secondary metabolic products into a redundant, multicomponent defense system. Efficacy and resilience of WP treatment against rodent malaria provides compelling reasons to further explore the role of nonpharmaceutical forms of AN to treat human malaria.
Collapse
|
31
|
Dorosti Z, Yousefi M, Sharafi SM, Darani HY. Mutual action of anticancer and antiparasitic drugs: are there any shared targets? Future Oncol 2014; 10:2529-39. [DOI: 10.2217/fon.14.65] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ABSTRACT Parasites and cancers have some common features. It has been shown that some parasites interfere with tumor growth. In addition, they both have common antigens such as the Tn antigen. A communal action of anticancer and antiparasitic drugs has been reported. This shared action may be related to common targets for these drugs in cancers and parasites. In this paper, mutual action of anticancer and antiparasitic drugs, with the aim of discussing shared targets of these drugs, has been reviewed.
Collapse
Affiliation(s)
- Zahra Dorosti
- Department of Parasitology & Mycology, Faculty of Medicine, Isfahan University of Medical sciences, Isfahan, Iran
| | - Morteza Yousefi
- Student Research Committee, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Seyedeh Maryam Sharafi
- Infectious Diseases & Tropical medicine Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hossein Yousofi Darani
- Cancer Prevention Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| |
Collapse
|
32
|
Want MY, Islamuddin M, Chouhan G, Dasgupta AK, Chattopadhyay AP, Afrin F. A new approach for the delivery of artemisinin: formulation, characterization, and ex-vivo antileishmanial studies. J Colloid Interface Sci 2014; 432:258-69. [PMID: 25086720 DOI: 10.1016/j.jcis.2014.06.035] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 06/13/2014] [Accepted: 06/14/2014] [Indexed: 01/28/2023]
Abstract
HYPOTHESIS Artemisinin, a potential antileishmanial compound with poor bioavailability and stability has limited efficacy in visceral leishmaniasis. Encapsulating artemisinin into poly lactic-co glycolic nanoparticles may improve its effectiveness and reduce toxicity. EXPERIMENTS Artemisinin-loaded nanoparticles were prepared, optimized (using Box-Behnken design) and characterized by dynamic light scattering technique, Atomic force microscopy (AFM), Transmission electron microscopy (TEM) and Fourier Transform-Infra Red spectroscopy. Release kinetics of artemisinin from optimized nanoformulation was studied by dialysis method at pH 7.4 and 5.5. Cytotoxicity and antileishmanial activity of these nanoparticles was tested on murine macrophages by MTT assay and macrophage-infested Leishmania donovani amastigotes ex vivo, respectively. FINDINGS Artemisinin-loaded nanoparticles were 221±14nm in diameter, with polydispersity index, zeta potential, drug loading and entrapment efficiency of 0.1±0.015, -9.07±0.69mV, 28.03±1.14 and 68.48±1.97, respectively. AFM and TEM studies indicated that the particles were spherical in shape. These colloidal particles showed a sustained release pattern in vitro. Treatment with artemisinin-loaded nanoparticles significantly reduced the number of amastigotes per macrophage and percent infected macrophages ex vivo compared to free artemisinin. These nanoparticles were also non-toxic to macrophages compared to artemisinin alone.
Collapse
Affiliation(s)
- Muzamil Yaqub Want
- Parasite Immunology Laboratory, Department of Biotechnology, Jamia Hamdard (Hamdard University), New Delhi 110062, India
| | - Mohammad Islamuddin
- Parasite Immunology Laboratory, Department of Biotechnology, Jamia Hamdard (Hamdard University), New Delhi 110062, India
| | - Garima Chouhan
- Parasite Immunology Laboratory, Department of Biotechnology, Jamia Hamdard (Hamdard University), New Delhi 110062, India
| | - Anjan Kumar Dasgupta
- Department of Biophysics and Biochemistry, Ballygunge Science College, University of Calcutta, Kolkata 700019, India
| | | | - Farhat Afrin
- Parasite Immunology Laboratory, Department of Biotechnology, Jamia Hamdard (Hamdard University), New Delhi 110062, India.
| |
Collapse
|
33
|
Malik S, Khan SA, Ahuja P, Arya SK, Sahu S, Sahu K. Singlet oxygen-mediated synthesis of malarial chemotherapeutic agents. Med Chem Res 2013. [DOI: 10.1007/s00044-013-0578-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
34
|
Elfawal MA, Towler MJ, Reich NG, Golenbock D, Weathers PJ, Rich SM. Dried whole plant Artemisia annua as an antimalarial therapy. PLoS One 2012; 7:e52746. [PMID: 23289055 PMCID: PMC3527585 DOI: 10.1371/journal.pone.0052746] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Accepted: 11/21/2012] [Indexed: 12/11/2022] Open
Abstract
Drugs are primary weapons for reducing malaria in human populations. However emergence of resistant parasites has repeatedly curtailed the lifespan of each drug that is developed and deployed. Currently the most effective anti-malarial is artemisinin, which is extracted from the leaves of Artemisia annua. Due to poor pharmacokinetic properties and prudent efforts to curtail resistance to monotherapies, artemisinin is prescribed only in combination with other anti-malarials composing an Artemisinin Combination Therapy (ACT). Low yield in the plant, and the added cost of secondary anti-malarials in the ACT, make artemisinin costly for the developing world. As an alternative, we compared the efficacy of oral delivery of the dried leaves of whole plant (WP) A. annua to a comparable dose of pure artemisinin in a rodent malaria model (Plasmodium chabaudi). We found that a single dose of WP (containing 24 mg/kg artemisinin) reduces parasitemia more effectively than a comparable dose of purified drug. This increased efficacy may result from a documented 40-fold increase in the bioavailability of artemisinin in the blood of mice fed the whole plant, in comparison to those administered synthetic drug. Synergistic benefits may derive from the presence of other anti-malarial compounds in A. annua. If shown to be clinically efficacious, well-tolerated, and compatible with the public health imperative of forestalling evolution of drug resistance, inexpensive, locally grown and processed A. annua might prove to be an effective addition to the global effort to reduce malaria morbidity and mortality.
Collapse
Affiliation(s)
- Mostafa A. Elfawal
- Laboratory of Medical Zoology, Department of Microbiology, University of Massachusetts, Amherst, Massachusetts, United States of America
| | - Melissa J. Towler
- Department of Biology and Biotechnology, Worcester Polytechnic Institute, Worcester, Massachusetts, United States of America
| | - Nicholas G. Reich
- Division of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts, Amherst, Massachusetts, United States of America
| | - Douglas Golenbock
- Infectious Diseases and Immunology, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America
| | - Pamela J. Weathers
- Department of Biology and Biotechnology, Worcester Polytechnic Institute, Worcester, Massachusetts, United States of America
| | - Stephen M. Rich
- Laboratory of Medical Zoology, Department of Microbiology, University of Massachusetts, Amherst, Massachusetts, United States of America
- * E-mail:
| |
Collapse
|
35
|
Huang XY, Shan ZJ, Zhai HL, Su L, Zhang XY. Study on the Anticancer Activity of Coumarin Derivatives by Molecular Modeling. Chem Biol Drug Des 2011; 78:651-8. [DOI: 10.1111/j.1747-0285.2011.01195.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
36
|
Wood PM, Woo LWL, Thomas MP, Mahon MF, Purohit A, Potter BVL. Aromatase and dual aromatase-steroid sulfatase inhibitors from the letrozole and vorozole templates. ChemMedChem 2011; 6:1423-38. [PMID: 21608133 PMCID: PMC3170879 DOI: 10.1002/cmdc.201100145] [Citation(s) in RCA: 50] [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: 03/17/2011] [Indexed: 11/16/2022]
Abstract
Concurrent inhibition of aromatase and steroid sulfatase (STS) may provide a more effective treatment for hormone-dependent breast cancer than monotherapy against individual enzymes, and several dual aromatase-sulfatase inhibitors (DASIs) have been reported. Three aromatase inhibitors with sub-nanomolar potency, better than the benchmark agent letrozole, were designed. To further explore the DASI concept, a new series of letrozole-derived sulfamates and a vorozole-based sulfamate were designed and biologically evaluated in JEG-3 cells to reveal structure-activity relationships. Amongst achiral and racemic compounds, 2-bromo-4-(2-(4-cyanophenyl)-2-(1H-1,2,4-triazol-1-yl)ethyl)phenyl sulfamate is the most potent DASI (aromatase: IC₅₀ =0.87 nM; STS: IC₅₀ =593 nM). The enantiomers of the phenolic precursor to this compound were separated by chiral HPLC and their absolute configuration determined by X-ray crystallography. Following conversion to their corresponding sulfamates, the S-(+)-enantiomer was found to inhibit aromatase and sulfatase most potently (aromatase: IC₅₀ =0.52 nM; STS: IC₅₀ =280 nM). The docking of each enantiomer and other ligands into the aromatase and sulfatase active sites was also investigated.
Collapse
Affiliation(s)
- Paul M Wood
- Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of BathClaverton Down, Bath BA2 7AY (UK), Fax: (+44) 1225-386-114
| | - L W Lawrence Woo
- Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of BathClaverton Down, Bath BA2 7AY (UK), Fax: (+44) 1225-386-114
| | - Mark P Thomas
- Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of BathClaverton Down, Bath BA2 7AY (UK), Fax: (+44) 1225-386-114
| | - Mary F Mahon
- X-Ray Crystallographic Suite, Department of Chemistry, University of BathClaverton Down, Bath, BA2 7AY (UK)
| | - Atul Purohit
- Division of Diabetes, Endocrinology & Metabolism, Imperial College London, Hammersmith HospitalLondon, W12 0NN (UK)
| | - Barry V L Potter
- Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of BathClaverton Down, Bath BA2 7AY (UK), Fax: (+44) 1225-386-114
| |
Collapse
|
37
|
Collar CJ, Zhu X, Werbovetz K, Boykin DW, Wilson WD. Molecular factors governing inhibition of arylimidamides against Leishmania: conservative computational modeling to improve chemotherapies. Bioorg Med Chem 2011; 19:4552-61. [PMID: 21741248 DOI: 10.1016/j.bmc.2011.06.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2011] [Revised: 06/02/2011] [Accepted: 06/07/2011] [Indexed: 01/19/2023]
Abstract
A dataset of 55 compounds with inhibitory activity against Leishmania donovani axenic amastigotes and Leishmania amazonensis intracellular parasites was examined through three-dimensional quantitative structure-activity relationship modeling employing molecular descriptors from both rigid and flexible compound alignments. For training and testing purposes, the compounds were divided into two datasets of 45 and 10 compounds, respectively. Statistically significant models were constructed and validated via the internal and external predictions. For all models employing steric, electrostatic, hydrophobic, H-donor and H-acceptor molecular descriptors, the R² values were greater than 0.90 and the SEE values were less than 0.22. The models obtained from rigid and flexible compounds were employed together to obtain a conservative method for predictions. This method minimized under predictions. Molecular descriptors from the models were then extrapolated, for the overall predictive devices and the individual compounds, and examined with regard to inhibitory activity. Information gained from the molecular descriptors is useful in the design of novel compounds. The models obtained can be employed to predict activities of the compounds designed and/or form predictions for compounds that exist and have not yet been examined with biological inhibitory assays.
Collapse
Affiliation(s)
- Catharine J Collar
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA
| | | | | | | | | |
Collapse
|
38
|
Sen R, Saha P, Sarkar A, Ganguly S, Chatterjee M. Iron enhances generation of free radicals by Artemisinin causing a caspase-independent, apoptotic death inLeishmania donovanipromastigotes. Free Radic Res 2010; 44:1289-95. [DOI: 10.3109/10715762.2010.498475] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
39
|
|
40
|
Sathe M, Kaushik M. In vitro and in vivo antimalarial evaluation of semi-synthetic derivatives of gomphostenin. Bioorg Med Chem Lett 2010; 20:4233-6. [DOI: 10.1016/j.bmcl.2010.05.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2010] [Revised: 04/22/2010] [Accepted: 05/12/2010] [Indexed: 11/24/2022]
|
41
|
Roy K, Ojha PK. Advances in quantitative structure–activity relationship models of antimalarials. Expert Opin Drug Discov 2010; 5:751-78. [DOI: 10.1517/17460441.2010.497812] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
42
|
Sen R, Ganguly S, Saha P, Chatterjee M. Efficacy of artemisinin in experimental visceral leishmaniasis. Int J Antimicrob Agents 2010; 36:43-9. [PMID: 20403680 DOI: 10.1016/j.ijantimicag.2010.03.008] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2009] [Revised: 02/05/2010] [Accepted: 03/03/2010] [Indexed: 10/19/2022]
Abstract
Visceral leishmaniasis (VL), caused by the protozoan Leishmania sp., affects 500000 people annually, with the Indian subcontinent contributing a significant proportion of these cases. Emerging refractoriness to conventional antimony therapy has emphasised the need for safer yet effective antileishmanial drugs. Artemisinin, a widely used antimalarial, demonstrated anti-promastigote activity and the 50% inhibitory concentration (IC(50)) ranged from 100 microM to 120 microM irrespective of Leishmania species studied. Leishmania donovani-infected macrophages demonstrated decreased production of nitrite as well as mRNA expression of inducible nitric oxide synthase, which was normalised by artemisinin, indicating that it exerted both a direct parasiticidal activity as well as inducing a host protective response. Furthermore, in a BALB/c model of VL, orally administered artemisinin (10mg/kg and 25mg/kg body weight) effectively reduced both splenic weight and parasite burden, which was accompanied by a restoration of Th1 cytokines (interferon-gamma and interleukin-2). Taken together, these findings have delineated the therapeutic potential of artemisinin in experimental VL.
Collapse
Affiliation(s)
- Rupashree Sen
- Department of Pharmacology, Institute of Post Graduate Medical Education and Research, 244 B, Acharya Jagadish Chandra Bose Road, Kolkata 700 020, West Bengal, India
| | | | | | | |
Collapse
|
43
|
Zhang S, Gerhard GS. Heme mediates cytotoxicity from artemisinin and serves as a general anti-proliferation target. PLoS One 2009; 4:e7472. [PMID: 19862332 PMCID: PMC2764339 DOI: 10.1371/journal.pone.0007472] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2009] [Accepted: 08/28/2009] [Indexed: 11/19/2022] Open
Abstract
Heme (Fe2+ protoporphyrin IX) is an essential molecule that has been implicated the potent antimalarial action of artemisinin and its derivatives, although the source and nature of the heme remain controversial. Artemisinins also exhibit selective cytotoxicity against cancer cells in vitro and in vivo. We demonstrate that intracellular heme is the physiologically relevant mediator of the cytotoxic effects of artemisinins. Increasing intracellular heme synthesis through the addition of aminolevulinic acid, protoporphyrin IX, or transferrin-bound iron increased the cytotoxicity of dihydroartemisinin, while decreasing heme synthesis through the addition of succinyl acetone decreased its cytotoxic activity. A simple and robust high throughput assay was developed to screen chemical compounds that were capable of interacting with heme. A natural products library was screened which identified the compound coralyne, in addition to artemisinin, as a heme interacting compound with heme synthesis dependent cytotoxic activity. These results indicate that cellular heme may serve a general target for the development of both anti-parasitic and anti-cancer therapeutics.
Collapse
Affiliation(s)
- Shiming Zhang
- Weis Center for Research, Geisinger Clinic, Danville, Pennsylvania, United States of America
| | - Glenn S. Gerhard
- Weis Center for Research, Geisinger Clinic, Danville, Pennsylvania, United States of America
| |
Collapse
|
44
|
Design and synthesis of novel substituted quinazoline derivatives as antileishmanial agents. Bioorg Med Chem Lett 2009; 19:5474-7. [DOI: 10.1016/j.bmcl.2009.07.081] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2009] [Revised: 06/04/2009] [Accepted: 07/16/2009] [Indexed: 11/20/2022]
|
45
|
Progress in the development of peroxide-based anti-parasitic agents. Drug Discov Today 2009; 14:793-803. [DOI: 10.1016/j.drudis.2009.05.008] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2008] [Revised: 03/05/2009] [Accepted: 05/12/2009] [Indexed: 11/24/2022]
|
46
|
Adam I, Hagelnur AA. Artesunate plus sulfamethoxypyrazine/pyrimethamine for the treatment of cutaneous leishmaniasis: a double-blind, placebo-controlled clinical trial. Int J Antimicrob Agents 2009; 34:380-1. [PMID: 19409761 DOI: 10.1016/j.ijantimicag.2009.03.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2009] [Revised: 03/14/2009] [Accepted: 03/18/2009] [Indexed: 10/20/2022]
|
47
|
de Ridder S, van der Kooy F, Verpoorte R. Artemisia annua as a self-reliant treatment for malaria in developing countries. JOURNAL OF ETHNOPHARMACOLOGY 2008; 120:302-14. [PMID: 18977424 DOI: 10.1016/j.jep.2008.09.017] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2008] [Revised: 09/04/2008] [Accepted: 09/05/2008] [Indexed: 05/03/2023]
Abstract
Malaria is a vector-borne infectious disease caused by the protozoan Plasmodium parasites. Each year, it causes disease in approximately 515 million people and kills between one and three million people, the majority of whom are young children in sub-Saharan Africa. It is widespread in tropical and subtropical regions, including parts of the Americas, Asia, and Africa. Due to climate change and the gradual warming of the temperate regions the future distribution of the malaria disease might include regions which are today seen as safe. Currently, malaria control requires an integrated approach comprising of mainly prevention, including vector control and the use of effective prophylactic medicines, and treatment of infected patients with antimalarials. The antimalarial chloroquine, which was in the past a mainstay of malaria control, is now ineffective in most malaria areas and resistance to other antimalarials is also increasing rapidly. The discovery and development of artemisinins from Artemisia annua have provided a new class of highly effective antimalarials. ACTs are now generally considered as the best current treatment for uncomplicated Plasmodium falciparum malaria. This review gives a short history of the malaria disease, the people forming a high risk group and the botanical aspects of A. annua. Furthermore the review provides an insight in the use of ART and its derivatives for the treatment of malaria. Its mechanism of action and kinetics will be described as well as the possibilities for a self-reliant treatment will be revealed. This self-reliant treatment includes the local production practices of A. annua followed by the possibilities for using traditional prepared teas from A. annua as an effective treatment for malaria. Finally, HMM will be described and the advantages and disadvantages discussed.
Collapse
Affiliation(s)
- Sanne de Ridder
- Division of Pharmacognosy, Section of Metabolomics, Institute of Biology, Leiden University, PO Box 9502, 2300RA Leiden, The Netherlands
| | | | | |
Collapse
|
48
|
Comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA) of thiazolone derivatives as hepatitis C virus NS5B polymerase allosteric inhibitors. J Comput Aided Mol Des 2008; 22:711-25. [DOI: 10.1007/s10822-008-9230-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2008] [Accepted: 07/13/2008] [Indexed: 01/27/2023]
|
49
|
In vitro and in vivo treatments of echinococcus protoscoleces and metacestodes with artemisinin and artemisinin derivatives. Antimicrob Agents Chemother 2008; 52:3447-50. [PMID: 18625777 DOI: 10.1128/aac.00553-08] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
In vitro treatment of Echinococcus multilocularis and Echinococcus granulosus larval stages with the antimalarials dihydroartemisinin and artesunate (10 to 40 microM) exhibited promising results, while 6 weeks of in vivo treatment of mice infected with E. multilocularis metacestodes (200 mg/kg of body weight/day) had no effect. However, combination treatments of both drugs with albendazole led to a substantial but statistically not significant reduction in parasite weight compared to results with albendazole alone.
Collapse
|
50
|
Chollet C, Crousse B, Bories C, Bonnet-Delpon D, Loiseau PM. In vitro antileishmanial activity of fluoro-artemisinin derivatives against Leishmania donovani. Biomed Pharmacother 2008; 62:462-5. [PMID: 18538529 DOI: 10.1016/j.biopha.2008.04.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2008] [Accepted: 04/10/2008] [Indexed: 11/16/2022] Open
Abstract
The antileishmanial activity of 19 fluoro-artemisinin derivatives was evaluated in vitro against the promastigote forms of Leishmania donovani. The most active compound BB 201, an amino derivative, exhibited an IC50 at about 1microM and no cross-resistance was found on miltefosine-resistant and sitamaquine-resistant lines. Despite these promising data, no activity was observed on intramacrophage amastigote stage. Although the membranes that have to be crossed by the compounds and pH conditions between intraerythrocyte Plasmodium and intramacrophage Leishmania have similarities, the targets affected by artemisinin derivatives in promastigotes could be differentially expressed in amastigotes.
Collapse
Affiliation(s)
- Constance Chollet
- Molécules Fluorées et Chimie Médicinale, UMR 8076 CNRS, IFR 141, Faculté de Pharmacie, Univ Paris-Sud, Rue Jean-Baptiste Clément, F-92290 Châtenay-Malabry, France
| | | | | | | | | |
Collapse
|