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Tayama Y, Mizukami S, Toume K, Komatsu K, Yanagi T, Nara T, Tieu P, Huy NT, Hamano S, Hirayama K. Anti-Trypanosoma cruzi activity of Coptis rhizome extract and its constituents. Trop Med Health 2023; 51:12. [PMID: 36859380 PMCID: PMC9976467 DOI: 10.1186/s41182-023-00502-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 02/09/2023] [Indexed: 03/03/2023] Open
Abstract
BACKGROUND Current therapeutic agents, including nifurtimox and benznidazole, are not sufficiently effective in the chronic phase of Trypanosoma cruzi infection and are accompanied by various side effects. In this study, 120 kinds of extracts from medicinal herbs used for Kampo formulations and 94 kinds of compounds isolated from medicinal herbs for Kampo formulations were screened for anti-T. cruzi activity in vitro and in vivo. METHODS As an experimental method, a recombinant protozoan cloned strain expressing luciferase, namely Luc2-Tulahuen, was used in the experiments. The in vitro anti-T. cruzi activity on epimastigote, trypomastigote, and amastigote forms was assessed by measuring luminescence intensity after treatment with the Kampo extracts or compounds. In addition, the cytotoxicity of compounds was tested using mouse and human feeder cell lines. The in vivo anti-T. cruzi activity was measured by a murine acute infection model using intraperitoneal injection of trypomastigotes followed by live bioluminescence imaging. RESULTS As a result, three protoberberine-type alkaloids, namely coptisine chloride, dehydrocorydaline nitrate, and palmatine chloride, showed strong anti-T. cruzi activities with low cytotoxicity. The IC50 values of these compounds differed depending on the side chain, and the most effective compound, coptisine chloride, showed a significant effect in the acute infection model. CONCLUSIONS For these reasons, coptisine chloride is a hit compound that can be a potential candidate for anti-Chagas disease drugs. In addition, it was expected that there would be room for further improvement by modifying the side chains of the basic skeleton.
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Affiliation(s)
- Yuki Tayama
- grid.174567.60000 0000 8902 2273Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523 Japan ,grid.174567.60000 0000 8902 2273Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523 Japan
| | - Shusaku Mizukami
- grid.174567.60000 0000 8902 2273Department of Immune Regulation, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan ,grid.174567.60000 0000 8902 2273School of Tropical Medicines and Global Health, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523 Japan ,grid.174567.60000 0000 8902 2273The Joint Usage/Research Center On Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, 852-8523 Japan
| | - Kazufumi Toume
- grid.267346.20000 0001 2171 836XSection of Pharmacognosy, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Katsuko Komatsu
- grid.267346.20000 0001 2171 836XSection of Pharmacognosy, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Tetsuo Yanagi
- grid.174567.60000 0000 8902 2273NEKKEN Bio-Resource Center (NBRC), Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan ,grid.174567.60000 0000 8902 2273The Joint Usage/Research Center On Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, 852-8523 Japan
| | - Takeshi Nara
- grid.411789.20000 0004 0371 1051Faculty of Pharmacy, Iryo Sosei University, Iwaki, Fukushima Japan
| | - Paul Tieu
- grid.25073.330000 0004 1936 8227Faculty of Health Sciences, McMaster University, Hamilton, ON Canada ,Online Research Club, Nagasaki, Japan
| | - Nguyen Tien Huy
- grid.174567.60000 0000 8902 2273Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523 Japan ,grid.174567.60000 0000 8902 2273School of Tropical Medicines and Global Health, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523 Japan ,Online Research Club, Nagasaki, Japan
| | - Shinjiro Hamano
- grid.174567.60000 0000 8902 2273Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523 Japan ,grid.174567.60000 0000 8902 2273Department of Parasitology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan ,grid.174567.60000 0000 8902 2273The Joint Usage/Research Center On Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, 852-8523 Japan
| | - Kenji Hirayama
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan. .,Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan. .,School of Tropical Medicines and Global Health, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan. .,The Joint Usage/Research Center On Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, 852-8523, Japan.
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