1
|
Schreiber M, Macháček T, Vajs V, Šmídová B, Majer M, Hrdý J, Tolde O, Brábek J, Rösel D, Horák P. Suppression of the growth and metastasis of mouse melanoma by Taenia crassiceps and Mesocestoides corti tapeworms. Front Immunol 2024; 15:1376907. [PMID: 38571957 PMCID: PMC10987685 DOI: 10.3389/fimmu.2024.1376907] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 02/27/2024] [Indexed: 04/05/2024] Open
Abstract
Cancer is still one of the leading causes of death, with an estimated 19.3 million new cases every year. Our paper presents the tumor-suppressing effect of Taenia crassiceps and Mesocestoides corti on B16F10 melanoma, the intraperitoneal application of which followed the experimental infection with these tapeworms, resulting in varying degrees of effectiveness in two strains of mice. In the case of M. corti-infected ICR mice, a strong tumor growth suppression occurred, which was accompanied by a significant reduction in the formation of distant metastases in the liver and lung. Tapeworm-infected C57BL/6J mice also showed a suppression of tumor growth and, in addition, the overall survival of infected C57BL/6J mice was significantly improved. Experiments with potential cross-reaction of melanoma and tapeworm antigens with respective specific antibodies, restimulation of spleen T cells, or the direct effect of tapeworm excretory-secretory products on melanoma cells in vitro could not explain the phenomenon. However, infections with T. crassiceps and M. corti increased the number of leukocytes possibly involved in anti-tumor immunity in the peritoneal cavity of both ICR and C57BL/6J mice. This study unveils the complex interplay between tapeworm infections, immune responses, and melanoma progression, emphasizing the need for further exploration of the mechanisms driving observed tumor-suppressive effects.
Collapse
Affiliation(s)
- Manfred Schreiber
- Department of Parasitology, Faculty of Science, Charles University, Prague, Czechia
| | - Tomáš Macháček
- Department of Parasitology, Faculty of Science, Charles University, Prague, Czechia
| | - Vojtěch Vajs
- Department of Parasitology, Faculty of Science, Charles University, Prague, Czechia
| | - Barbora Šmídová
- Department of Parasitology, Faculty of Science, Charles University, Prague, Czechia
| | - Martin Majer
- Department of Parasitology, Faculty of Science, Charles University, Prague, Czechia
| | - Jiří Hrdý
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czechia
| | - Ondřej Tolde
- Department of Cell Biology, and Biotechnology and Biomedicine Center of the Academy of Sciences and Charles University in Vestec (BIOCEV), Charles University, Prague, Czechia
| | - Jan Brábek
- Department of Cell Biology, and Biotechnology and Biomedicine Center of the Academy of Sciences and Charles University in Vestec (BIOCEV), Charles University, Prague, Czechia
| | - Daniel Rösel
- Department of Cell Biology, and Biotechnology and Biomedicine Center of the Academy of Sciences and Charles University in Vestec (BIOCEV), Charles University, Prague, Czechia
| | - Petr Horák
- Department of Parasitology, Faculty of Science, Charles University, Prague, Czechia
| |
Collapse
|
2
|
Liang P, Liang P, Chen K, Chen Z, Liu Y, Lin Y, Li J, Fu R, Lu G, Wang D. Important nutrient sources and carbohydrate metabolism patterns in the growth and development of spargana. Parasit Vectors 2024; 17:68. [PMID: 38365789 PMCID: PMC10873960 DOI: 10.1186/s13071-024-06148-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 01/19/2024] [Indexed: 02/18/2024] Open
Abstract
BACKGROUND Sparganosis is a worldwide food-borne parasitic disease caused by spargana infection, which infects the muscle of frogs and snakes as well as many tissues and organs in humans. There are currently no viable treatments for sparganosis. Understanding spargana's nutrition source and carbohydrate metabolism may be crucial for identifying its energy supply and establishing methods of treatment for sparganosis. METHODS Using an amino acid analyzer and nutrient concentration detection kits, we assessed nutrient concentrations in the muscles of Fejervarya limnocharis and Pelophylax plancyi infected or not infected with spargana. Quantitative polymerase chain reaction (PCR) was used to quantify the major enzymes involved in five glucose metabolism pathways of spargana developing in vivo. We also used quantitative PCR to assess key enzymes and transcriptome sequencing to explore the regulation of carbohydrate metabolic pathways in vitro in response to different 24-h food treatments. RESULTS Infected muscle tissues had considerably higher concentrations of glucogenic and/or ketogenic amino acids, glucose, and glycogen than non-infected muscle tissues. We discovered that the number of differentially expressed genes in Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis was larger in low-glucose than in other dietary groups. We examined differences in the expression of genes producing amino acid transporters, glucose transporters, and cathepsins in spargana grown in various nutritional environments. In the normal saline group, only the major enzymes in the tricarboxylic acid cycle (TCA), glycogenesis, and glycogenolysis pathways were expressed. The L-glutamine group had the greatest transcriptional levels of critical rate-limiting enzymes of gluconeogenesis and glycogenesis. Furthermore, the low-glucose group had the highest transcriptional levels of critical rate-limiting enzymes involved in the TCA, glycolytic, and glycogenolysis pathways. Surprisingly, when compared to the in vitro culturing groups, spargana developing in vivo exhibited higher expression of these critical rate-limiting enzymes in these pathways, with the exception of the pentose phosphate pathway. CONCLUSIONS Spargana have a variety of nutritional sources, and there is a close relationship between nutrients and the carbohydrate metabolism pathways. It takes a multi-site approach to block nutrient absorption and carbohydrate metabolism pathways to provide energy to kill them.
Collapse
Affiliation(s)
- Pei Liang
- Laboratory of Biopharmaceuticals and Molecular Pharmacology, School of Pharmaceutical Sciences, Hainan University, Haikou, 570228, Hainan, China
- Key Laboratory of Tropical Translational Medicine of the Ministry of Education, School of Tropical Medicine, Hainan Medicine University, Haikou, 571199, Hainan, China
- Emerging Tropical Infectious Diseases Science Innovation Group, Hainan Medicine University, Haikou, 571199, Hainan, China
| | - Peng Liang
- Key Laboratory of Tropical Translational Medicine of the Ministry of Education, School of Tropical Medicine, Hainan Medicine University, Haikou, 571199, Hainan, China
| | - Kemin Chen
- Department of Pathology, The Fifth People's Hospital of Hainan Province, Haikou, 570102, Hainan, China
| | - Zhengxin Chen
- School of Biomedical Information and Engineering, Hainan Medical University, Haikou, 571199, Hainan, China
| | - Yamei Liu
- Department of Blood Transfusion, The People's Hospital of Lingshui, Lingshui, 572400, Hainan, China
| | - Yujin Lin
- Central Laboratory, Sanya People's Hospital, Sanya, 572000, Hainan, China
| | - Jin Li
- School of Biomedical Information and Engineering, Hainan Medical University, Haikou, 571199, Hainan, China
| | - Ruijia Fu
- Laboratory of Biopharmaceuticals and Molecular Pharmacology, School of Pharmaceutical Sciences, Hainan University, Haikou, 570228, Hainan, China
- Key Laboratory of Tropical Translational Medicine of the Ministry of Education, School of Tropical Medicine, Hainan Medicine University, Haikou, 571199, Hainan, China
| | - Gang Lu
- Key Laboratory of Tropical Translational Medicine of the Ministry of Education, School of Tropical Medicine, Hainan Medicine University, Haikou, 571199, Hainan, China.
| | - Dayong Wang
- Laboratory of Biopharmaceuticals and Molecular Pharmacology, School of Pharmaceutical Sciences, Hainan University, Haikou, 570228, Hainan, China.
- Key Laboratory of Tropical Biological Resources of the Ministry of Education of China, Hainan University, Haikou, 570228, Hainan, China.
| |
Collapse
|
3
|
Chaudhry S, Zurbriggen R, Preza M, Kämpfer T, Kaethner M, Memedovski R, Scorrano N, Hemphill A, Doggett JS, Lundström-Stadelmann B. Dual inhibition of the Echinococcus multilocularis energy metabolism. Front Vet Sci 2022; 9:981664. [PMID: 35990276 PMCID: PMC9388906 DOI: 10.3389/fvets.2022.981664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 07/18/2022] [Indexed: 11/13/2022] Open
Abstract
Alveolar echinococcosis is caused by the metacestode stage of the zoonotic parasite Echinococcus multilocularis. Current chemotherapeutic treatment options rely on benzimidazoles, which have limited curative capabilities and can cause severe side effects. Thus, novel treatment options are urgently needed. In search for novel targetable pathways we focused on the mitochondrial energy metabolism of E. multilocularis. The parasite relies hereby on two pathways: The classical oxidative phosphorylation including the electron transfer chain (ETC), and the anaerobic malate dismutation (MD). We screened 13 endochin-like quinolones (ELQs) in vitro for their activities against two isolates of E. multilocularis metacestodes and isolated germinal layer cells by the phosphoglucose isomerase (PGI) assay and the CellTiter Glo assay. For the five most active ELQs (ELQ-121, ELQ-136, ELQ-271, ELQ-400, and ELQ-437), EC50 values against metacestodes were assessed by PGI assay, and IC50 values against mammalian cells were measured by Alamar Blue assay. Further, the gene sequence of the proposed target, the mitochondrial cytochrome b, was analyzed. This allowed for a limited structure activity relationship study of ELQs against E. multilocularis, including analyses of the inhibition of the two functional sites of the cytochrome b. By applying the Seahorse XFp Extracellular Flux Analyzer, oxygen consumption assays showed that ELQ-400 inhibits the E. multilocularis cytochrome bc1 complex under normoxic conditions. When tested under anaerobic conditions, ELQ-400 was hardly active against E. multilocularis metacestodes. These results were confirmed by transmission electron microscopy. ELQ-400 treatment increased levels of parasite-released succinate, the final electron acceptor of the MD. This suggests that the parasite switched to MD for energy generation. Therefore, MD was inhibited with quinazoline, which did not induce damage to metacestodes under anaerobic conditions. However, it reduced the production of succinate compared to control treated parasites (i.e., inhibited the MD). The combination treatment with quinazoline strongly improved the activity of the bc1 inhibitor ELQ-400 against E. multilocularis metacestodes under anaerobic conditions. We conclude that simultaneous targeting of the ETC and the MD of E. multilocularis is a possible novel treatment approach for alveolar echinococcosis, and possibly also other foodborne diseases inflicted by platyhelminths, which cause substantial economic losses in livestock industry.
Collapse
Affiliation(s)
- Sheena Chaudhry
- Institute of Parasitology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Raphael Zurbriggen
- Institute of Parasitology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Matías Preza
- Institute of Parasitology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Tobias Kämpfer
- Institute of Parasitology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Marc Kaethner
- Institute of Parasitology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Roman Memedovski
- Institute of Parasitology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Nathalie Scorrano
- Institute of Parasitology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Andrew Hemphill
- Institute of Parasitology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Joseph Stone Doggett
- Department of Infectious Diseases and Pathobiology, Oregon Health and Science University, Portland, OR, United States
- Department of Infectious Diseases and Pathobiology, Veterans Affairs Portland Health Care System, Portland, OR, United States
| | - Britta Lundström-Stadelmann
- Institute of Parasitology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- *Correspondence: Britta Lundström-Stadelmann
| |
Collapse
|
4
|
Xu Y, Huang L, Bi Y, Song Q, Zhang M, Zhang L, Zhou T, Xing L, Jiang H. Dual inhibition of glucose uptake and energy supply synergistically restrains the growth and metastasis of breast cancer. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.07.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
5
|
Correia LTB, de Lima NF, Gomes TC, Guerra CHDS, Costa TL, Vinaud MC. Oxfendazole induces protein catabolism and gluconeogenesis in experimental neurocysticercosis. Acta Trop 2022; 234:106571. [PMID: 35752205 DOI: 10.1016/j.actatropica.2022.106571] [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: 04/26/2022] [Revised: 06/14/2022] [Accepted: 06/21/2022] [Indexed: 11/01/2022]
Abstract
Neurocysticercosis (NCC) is an endemic public health disease of the central nervous system highly related to epilepsy and seizures. Taenia crassiceps is an experimental model used for NCC and biochemical studies of the host-parasite relationship. For the past 50 years the NCC therapeutic treatment is performed with albendazole (ABZ) and praziquantel which opens a gap for new therapies due to parasitic resistance and other adverse effects of the drugs. Oxfendazole (OXF) is an albendazole derivative with efficacy against tissue cestodes of veterinary importance. The aim of this study was to determine the metabolic impact of OXF on T. crassiceps cysticerci intracranially inoculated in Balb/C mice. The animals were intracranially inoculated with T. crassiceps cysticerci and 30 days later received single dose oral treatment of OXF, ABZ and NaCl 0.9% (control group). The metabolic impact was quantified through the detection of metabolites from glycolysis, anaerobic fermentation of lactate and propionate, tricarboxylic acid cycle, protein catabolism, fatty acids oxidation. The differences observed in the concentrations of metabolites from the OXF treated group showed that the drug induced gluconeogenesis, increase in protein catabolism, fatty acids oxidation and propionate fermentation in comparison to the ABZ and control treated groups. In conclusion, OXF induced greater metabolic impact in T. crassiceps cysticerci than the standard NCC treatment, ABZ, showing that it may represent an alternative drug for its treatment.
Collapse
Affiliation(s)
- Laila Timina Bueno Correia
- Laboratory of studies of the host-parasite relationship, Tropical Pathology and Public Health Institute, Federal University of Goias. Brazil
| | - Nayana Ferreira de Lima
- Laboratory of studies of the host-parasite relationship, Tropical Pathology and Public Health Institute, Federal University of Goias. Brazil
| | - Taynara Cristina Gomes
- Laboratory of studies of the host-parasite relationship, Tropical Pathology and Public Health Institute, Federal University of Goias. Brazil
| | - Carlos Henrique De Sousa Guerra
- Laboratory of studies of the host-parasite relationship, Tropical Pathology and Public Health Institute, Federal University of Goias. Brazil
| | - Tatiane Luiza Costa
- Laboratory of studies of the host-parasite relationship, Tropical Pathology and Public Health Institute, Federal University of Goias. Brazil
| | - Marina C Vinaud
- Laboratory of studies of the host-parasite relationship, Tropical Pathology and Public Health Institute, Federal University of Goias. Brazil.
| |
Collapse
|
6
|
de Andrade Picanço G, Ferreira de Lima N, Cristina Gomes T, de Sousa Mendes Moreira Alves D, Luísa da Costa T, Vinaud MC. Intraperitoneal and intracranial experimental cysticercosis present different metabolic preferences after treatment with isolated or combined albendazole and nitazoxanide. Acta Trop 2022; 226:106264. [PMID: 34919953 DOI: 10.1016/j.actatropica.2021.106264] [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: 03/08/2021] [Revised: 11/15/2021] [Accepted: 12/03/2021] [Indexed: 11/17/2022]
Abstract
Cysticercosis is a zoonotic public health issue especially severe when the parasite is in the central nervous system although it may be found all over the human organism. Taenia crassiceps cysticerci inoculated in mice is the experimental model used to study cysticercosis. The most used cysticercosis treatment is with albendazole (ABZ). Nitazoxanide (NTZ) has been experimentally tested against this parasite. Metabolic analysis has been used to determine drugs impact on the parasite. The aim of this study was to determine the in vivo metabolic impact of the ABZ-NTZ combination in T. crassiceps cysticerci inoculated in mice peritoneal and intracranial cavities. Mice were experimentally inoculated with T. crassiceps cysticerci in the intraperitoneal cavity or in the intracranial one. Thirty days after the infection they were treated with NaCl 0.9% (control group), 50 mg/kg of ABZ, 50 mg/kg of NTZ or 50 mg/kg of NTZ and ABZ (ABZ/NTZ combination). 24 h after treatment the animals were euthanized and the cysticerci analyzed through high performance chromatography and spectrophotometry in order to detect the glycolytic, mitochondrial and protein catabolism pathways. The intracranial parasites used more intensely the homolactic fermentation while the intraperitoneal ones presented a greater use of the mitochondrial pathways and protein catabolism. Regarding the glycolytic pathways, it was possible to observe a significant impact induced by the drugs used, both isolated or in combination. It was possible to detect an increase in the fumarate reductase pathway after the drugs exposure and no impact in the protein's catabolism. Therefore, the cysticerci showed different uses of metabolic pathways regarding the site of inoculation due to the availability of nutrients inherent of each environment. This study showed the parasite metabolic resilience and capability of use of different biochemical pathways in order to ensure survival in spite of a hostile environment.
Collapse
Affiliation(s)
- Guaraciara de Andrade Picanço
- Laboratory of studies of the host-parasite relationship, Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Universitário, Goiania, Goias CEP 74605-050 Brazil
| | - Nayana Ferreira de Lima
- Laboratory of studies of the host-parasite relationship, Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Universitário, Goiania, Goias CEP 74605-050 Brazil
| | - Taynara Cristina Gomes
- Laboratory of studies of the host-parasite relationship, Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Universitário, Goiania, Goias CEP 74605-050 Brazil
| | - Daniella de Sousa Mendes Moreira Alves
- Laboratory of studies of the host-parasite relationship, Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Universitário, Goiania, Goias CEP 74605-050 Brazil
| | - Tatiane Luísa da Costa
- Laboratory of studies of the host-parasite relationship, Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Universitário, Goiania, Goias CEP 74605-050 Brazil
| | - Marina Clare Vinaud
- Laboratory of studies of the host-parasite relationship, Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Universitário, Goiania, Goias CEP 74605-050 Brazil.
| |
Collapse
|
7
|
Aguilar-Vega L, Plett-Torres T, Romano MC, Zurabian R. Evagination of metacestodes of the WFU strain of Taenia crassiceps and evaluation of the impact of immune suppression of hamsters during tapeworm development. Folia Parasitol (Praha) 2020; 67:2020.022. [PMID: 32958724 DOI: 10.14411/fp.2020.022] [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: 12/04/2019] [Accepted: 05/21/2020] [Indexed: 11/19/2022]
Abstract
Taeniosis-cysticercosis caused by Taenia crassiceps (Zeder, 1800) is a useful experimental model for biomedical research, in substitution of Taenia solium Linnaeus, 1758, studied during decades to develop effective vaccination, novel anti-helminthic drugs and diagnostic tools. Cysticercosis in mouse (Mus musculus Linnaeus) is achieved by the larval subculturing of the Wake Forest University (WFU) strain of T. crassiceps. Golden hamster, Mesocricetus auratus (Waterhouse), has been shown to be the most suitable host for adult forms of parasite in experimental taeniosis. Metacestodes of T. crassiceps WFU multiply by budding without restrictions once inoculated into the mouse, while the number of tapeworms developed from these larvae in hamsters remains highly variable. Three objectives have been proposed to improve the infection of T. crassiceps WFU in hamsters: (1) to re-evaluate the need of immune suppression; (2) to investigate the advantage of infecting hamsters with metacestodes with in vitro protruded scolices; and (3) to compare a number of tapeworms developed from metacestodes subcultured in hamsters against those proliferated in mice. Our results demonstrated that when the evagination of murine metacestodes was high, the number of T. crassiceps WFU adults obtained from hamsters was also high. Immunosuppressive treatment remains relevant for this experimental rodent model. The hamster-to-hamster cysticercosis-taeniosis by T. crassiceps overcame the mouse-to-hamster model in the yield of adult specimens. In vitro scolex evagination and metacestode asexual proliferation in hamsters place this rodent model by T. crassiceps WFU as the most affordable experimental models with taeniids.
Collapse
Affiliation(s)
- Laura Aguilar-Vega
- Departamento de Microbiologia y Parasitologia, Facultad de Medicina, Universidad Nacional Autonoma de Mexico, Ciudad de Mexico, Mexico
| | - Tanya Plett-Torres
- Plan de Estudios Combinados en Medicina (PECEM), Facultad de Medicina, Universidad Nacional Autonoma de Mexico, Ciudad de Mexico, Mexico
| | - Marta C Romano
- Departamento de Fisiologia, Biofisica y Neurociencias, CINVESTAV del I.P.N., Ciudad de Mexico, Mexico
| | - Rimma Zurabian
- Departamento de Microbiologia y Parasitologia, Facultad de Medicina, Universidad Nacional Autonoma de Mexico, Ciudad de Mexico, Mexico
| |
Collapse
|
8
|
Hamamoto Filho PT, Moreira CAA, Generoso D, Alves JÚnior AC, Zanini MA. Experimental neurocysticercosis and demyelination. ARQUIVOS DE NEURO-PSIQUIATRIA 2020; 78:528-529. [PMID: 32725050 DOI: 10.1590/0004-282x20200034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 03/11/2020] [Indexed: 06/11/2023]
Affiliation(s)
- Pedro Tadao Hamamoto Filho
- Universidade Estadual Paulista, Botucatu Medical School, Department of Neurology, Psychology and Psychiatry, Botucatu SP, Brazil
| | - Carlos Alexandre Aguiar Moreira
- Universidade Estadual Paulista, Botucatu Medical School, Department of Neurology, Psychology and Psychiatry, Botucatu SP, Brazil
| | - Diego Generoso
- Universidade Estadual Paulista, Botucatu Medical School, Department of Neurology, Psychology and Psychiatry, Botucatu SP, Brazil
| | - Aderaldo Costa Alves JÚnior
- Universidade Estadual Paulista, Botucatu Medical School, Department of Neurology, Psychology and Psychiatry, Botucatu SP, Brazil
| | - Marco Antônio Zanini
- Universidade Estadual Paulista, Botucatu Medical School, Department of Neurology, Psychology and Psychiatry, Botucatu SP, Brazil
| |
Collapse
|
9
|
Gondim BLC, da Silva Catarino J, de Sousa MAD, de Oliveira Silva M, Lemes MR, de Carvalho-Costa TM, de Lima Nascimento TR, Machado JR, Rodrigues V, Oliveira CJF, Cançado Castellano LR, da Silva MV. Nanoparticle-Mediated Drug Delivery: Blood-Brain Barrier as the Main Obstacle to Treating Infectious Diseases in CNS. Curr Pharm Des 2020; 25:3983-3996. [PMID: 31612822 DOI: 10.2174/1381612825666191014171354] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 09/19/2019] [Indexed: 12/25/2022]
Abstract
BACKGROUND Parasitic infections affecting the central nervous system (CNS) present high morbidity and mortality rates and affect millions of people worldwide. The most important parasites affecting the CNS are protozoans (Plasmodium sp., Toxoplasma gondii, Trypanosoma brucei), cestodes (Taenia solium) and free-living amoebae (Acantamoeba spp., Balamuthia mandrillaris and Naegleria fowleri). Current therapeutic regimens include the use of traditional chemicals or natural compounds that have very limited access to the CNS, despite their elevated toxicity to the host. Improvements are needed in drug administration and formulations to treat these infections and to allow the drug to cross the blood-brain barrier (BBB). METHODS This work aims to elucidate the recent advancements in the use of nanoparticles as nanoscaled drug delivery systems (NDDS) for treating and controlling the parasitic infections that affect the CNS, addressing not only the nature and composition of the polymer chosen, but also the mechanisms by which these nanoparticles may cross the BBB and reach the infected tissue. RESULTS There is a strong evidence in the literature demonstrating the potential usefulness of polymeric nanoparticles as functional carriers of drugs to the CNS. Some of them demonstrated the mechanisms by which drugloaded nanoparticles access the CNS and control the infection by using in vivo models, while others only describe the pharmacological ability of these particles to be utilized in in vitro environments. CONCLUSION The scarcity of the studies trying to elucidate the compatibility as well as the exact mechanisms by which NDDS might be entering the CNS infected by parasites reveals new possibilities for further exploratory projects. There is an urgent need for new investments and motivations for applying nanotechnology to control parasitic infectious diseases worldwide.
Collapse
Affiliation(s)
- Brenna Louise Cavalcanti Gondim
- Human Immunology Research and Education Group-GEPIH, Technical School of Health, Federal University of Paraiba, Joao Pessoa, Paraiba, Brazil.,Post-Graduation Program in Dentistry, Department of Dentistry, State University of Paraíba, Campina Grande, Paraíba, Brazil
| | - Jonatas da Silva Catarino
- Department of Microbiology, Immunology and Parasitology, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil
| | | | - Mariana de Oliveira Silva
- Department of Microbiology, Immunology and Parasitology, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Marcela Rezende Lemes
- Department of Microbiology, Immunology and Parasitology, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil
| | | | - Tatiana Rita de Lima Nascimento
- Human Immunology Research and Education Group-GEPIH, Technical School of Health, Federal University of Paraiba, Joao Pessoa, Paraiba, Brazil
| | - Juliana Reis Machado
- Department of Pathology, Genetics and Evolution, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Virmondes Rodrigues
- Department of Microbiology, Immunology and Parasitology, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Carlo José Freire Oliveira
- Department of Microbiology, Immunology and Parasitology, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Lúcio Roberto Cançado Castellano
- Human Immunology Research and Education Group-GEPIH, Technical School of Health, Federal University of Paraiba, Joao Pessoa, Paraiba, Brazil
| | - Marcos Vinicius da Silva
- Department of Microbiology, Immunology and Parasitology, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil
| |
Collapse
|
10
|
Picanço GDA, Lima NF, Alves DSMM, Fraga CM, Costa TL, Junior RDSL, Castillo R, Hernández-Campos A, Ambrosio J, Vinaud MC. Partial inhibition of the tricarboxylic acid cycle in Taenia crassiceps cysticerci after the in vitro exposure to a benzimidazole derivative (RCB15). Acta Trop 2020; 202:105254. [PMID: 31689380 DOI: 10.1016/j.actatropica.2019.105254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 09/08/2019] [Accepted: 10/31/2019] [Indexed: 01/11/2023]
Abstract
The benzimidazole derivative, 6-chloro-5-(2,3-dichlorophenoxy)-2-(trifluoromethyl)-1H-benzimidazole (RCB15), has a similar mode of action and efficacy as albendazole, a commonly used anthelminthic drugs. The aim of this study was to evaluate its influence on the tricarboxylic acid cycle in Taenia crassiceps cysticerci. The parasites were cultured in supplemented RPMI medium containing albendazole sulfoxide (ABZSO) or RCB15, for 24 h. Then, frozen in liquid nitrogen for organic metabolites extraction. Samples were analyzed by high performance liquid chromatography and organic acids of the tricarboxylic acid cycle were detected. It was possible to observe changes in the concentrations of all acids involved in this metabolic pathway, with the exception of α-ketoglutarate, which was not detected in the control group neither in most of the treated groups. It indicates that the parasite presented a partial inhibition of the tricarboxylic acid cycle. The significant increase in the concentration of citrate, oxaloacetate and succinate in the RCB15 treated groups may indicate an activation of the fumarate reductase pathway, leading to metabolic distress. Therefore RCB15 may be considered an alternative for the treatment of tissue parasitic diseases, since it induced changes in the main metabolic pathway of the parasite.
Collapse
|
11
|
Isac E, Picanço GA, Costa TL, Lima NF, Alves DSMM, Fraga CM, Lino Junior RS, Vinaud MC. In vitro nitazoxanide exposure affects energetic metabolism of Taenia crassiceps. Exp Parasitol 2019; 208:107792. [PMID: 31707003 DOI: 10.1016/j.exppara.2019.107792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 10/10/2019] [Accepted: 11/06/2019] [Indexed: 01/12/2023]
Abstract
Nitazoxanide (NTZ) is a broad-spectrum drug used in intestinal infections, but still poorly explored in the treatment of parasitic tissular infections. This study aimed to evaluate the in vitro responses of the energetic metabolism of T. crassiceps cysticerci induced by NTZ. The organic acids of the tricarboxylic acid cycle, products derived from fatty acids oxidation and protein catabolism were analyzed. These acids were quantified after 24 h of in vitro exposure to different NTZ concentrations. A positive control group was performed with albendazole sulfoxide (ABZSO). The significant alterations in citrate, fumarate and malate concentrations showed the NTZ influence in the tricarboxylic acid (TCA) cycle. The non-detection of acetate confirmed that the main mode of action of NTZ is effective against T. crassiceps cysticerci. The statistical differences in fumarate, urea and beta-hydroxybutyrate concentrations showed the NTZ effect on protein catabolism and fatty acid oxidation. Therefore, the main energetic pathways such as the TCA cycle, protein catabolism and fatty acids oxidation were altered after in vitro NTZ exposure. In conclusion, NTZ induced a significant metabolic stress in the parasite indicating that it may be used as an alternative therapeutic choice for cysticercosis treatment. The use of metabolic approaches to establish comparisons between anti parasitic drugs mode of actions is proposed.
Collapse
Affiliation(s)
- Eliana Isac
- Tropical Pathology and Public Health Institute, Federal University of Goias, Goiás, Rua 235, S/n, Setor Leste Universitário, CEP 74605-050, Brazil
| | - Guaraciara A Picanço
- Tropical Pathology and Public Health Institute, Federal University of Goias, Goiás, Rua 235, S/n, Setor Leste Universitário, CEP 74605-050, Brazil
| | - Tatiane L Costa
- Tropical Pathology and Public Health Institute, Federal University of Goias, Goiás, Rua 235, S/n, Setor Leste Universitário, CEP 74605-050, Brazil
| | - Nayana F Lima
- Tropical Pathology and Public Health Institute, Federal University of Goias, Goiás, Rua 235, S/n, Setor Leste Universitário, CEP 74605-050, Brazil
| | - Daniellade S M M Alves
- Tropical Pathology and Public Health Institute, Federal University of Goias, Goiás, Rua 235, S/n, Setor Leste Universitário, CEP 74605-050, Brazil
| | - Carolina M Fraga
- Tropical Pathology and Public Health Institute, Federal University of Goias, Goiás, Rua 235, S/n, Setor Leste Universitário, CEP 74605-050, Brazil
| | - Ruyde S Lino Junior
- Tropical Pathology and Public Health Institute, Federal University of Goias, Goiás, Rua 235, S/n, Setor Leste Universitário, CEP 74605-050, Brazil
| | - Marina C Vinaud
- Tropical Pathology and Public Health Institute, Federal University of Goias, Goiás, Rua 235, S/n, Setor Leste Universitário, CEP 74605-050, Brazil.
| |
Collapse
|
12
|
Liu Y, Liu H, Xie Y, Zhang B, Zou X, Ou M, Ye X, Han Y, Wu J, Chen X, Dong S, Zhu K, Guo C, Wang P, Zhai H, Jing C, Yang G. Identification of genetic variations in Necator americanus through resequencing by whole genome amplification. J Int Med Res 2019; 47:4353-4364. [PMID: 31331217 PMCID: PMC6753555 DOI: 10.1177/0300060519862069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Objective To describe a new strategy for the whole genome resequencing of small
parasite samples. Methods Whole genome resequencing was based on a multiple displacement amplification
(MDA) method. Sequencing reads were aligned with the reference genome, and a
Bayesian model was used to calculate genotype probabilities. De
novo genome assembly was conducted, and single nucleotide
polymorphisms (SNPs) were detected. Gene ontology (GO) analysis was used to
determine connections between SNPs and genes. Results In total, 64.12% of the parasite genome sequence was mapped to
Necator americanus. fa, and 125,553 SNPs were detected.
GO analysis revealed that most SNPs in coding regions were probably
associated with common drug targets. Conclusion These results reveal the feasibility of a new strategy to detect genetic
variations of small parasites. This study also provides a proof-of-principle
for the molecular classification and epidemiological analysis of other
parasites.
Collapse
Affiliation(s)
- Yumei Liu
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, China.,Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Hongxuan Liu
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, China.,Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Yuefeng Xie
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, China.,Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Baohuan Zhang
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, China.,Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Xiaoqian Zou
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, China.,Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Meiling Ou
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, China.,Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Xiaohong Ye
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, China.,Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Yajing Han
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, China.,Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Jing Wu
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, China.,Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Xiaojing Chen
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, China.,Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Shirui Dong
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, China
| | - Kehui Zhu
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, China.,Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Congcong Guo
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Penghua Wang
- Department of Immunology, UConn Health, Farmington, CT, USA
| | - Hening Zhai
- Endoscopy Center, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Chunxia Jing
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China.,Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, Guangdong, China.,The Key Laboratory for Virology of Guangzhou, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Guang Yang
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, China.,Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, Guangdong, China.,The Key Laboratory for Virology of Guangzhou, College of Life Science and Technology, Jinan University, Guangzhou, China
| |
Collapse
|
13
|
In vivo treatment of experimental neurocysticercosis with praziquantel nanosuspensions-a metabolic approach. Drug Deliv Transl Res 2018; 8:1265-1273. [PMID: 30117119 DOI: 10.1007/s13346-018-0576-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Neurocysticercosis is the most common parasitic infection of the nervous system and currently represents a serious public health issue in many regions of Latin America, Asia, and Africa. To date, praziquantel is one of the chosen drugs for the treatment of neurocysticercosis. Its mechanism of action is based on the inhibition of different biochemical pathways within the parasite which contribute to its death. Thus, the aim of this work was to analyze, for the first time, whether the nanoformulations of praziquantel would modify the energetic pathway of Taenia crassiceps cysticerci, after an intracranial inoculation in BALB/c mice. Praziquantel nanosuspensions were formulated with polyvinyl alcohol, poloxamer 188, and poloxamer 407, as stabilizers. These formulations exhibited particle size in a range of 74-285 nm and zeta potential values in a range of - 8.1/- 13.2 depending on the type of stabilizer. Physical stability study at both 4 ± 2 and 25 ± 2 °C indicated that praziquantel (PZQ) nanoparticles were stable in terms of solubility and particle size after 120-day storage. In vivo studies demonstrated that those nanosystems were able to produce significant modifications on the concentrations of oxaloacetate, citrate, pyruvate, alpha-ketoglutarate, malate, succinate, lactate, beta-hydroxybutyrate, fumarate, and propionate involved in the metabolism of Taenia crassiceps cysticerci. Therefore, these nanoformulations may be considered as a promising tool to deliver praziquantel to the brain for the effective management of neurocysticercosis.
Collapse
|
14
|
de Andrade Picanço G, de Lima NF, Fraga CM, da Costa TL, Isac E, Ambrosio J, Castillo R, Vinaud MC. A benzimidazole derivative (RCB15) in vitro induces the alternative energetic metabolism and glycolysis in Taenia crassiceps cysticerci. Acta Trop 2017; 176:288-292. [PMID: 28865900 DOI: 10.1016/j.actatropica.2017.08.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 08/22/2017] [Accepted: 08/23/2017] [Indexed: 02/08/2023]
Abstract
The emergence of resistance to albendazole has encouraged the search for effective alternatives for cysticercosis and other parasitosis treatment. RCB15 is a benzimidazole derivative that may be used against such diseases. The aim of this study was to determine the in vitro effect of RCB15 on the alternative energetic pathways of Taenia crassiceps cysticerci. The cysticerci were in vitro exposed to albendazole sulphoxide (ABZSO) or RCB15 at different concentrations during 24h. The cysticerci extract and the culture medium were analyzed through spectrophotometry and high performance liquid chromatography as to detect glucose, urea, creatinine and organic acids of the energetic metabolism. The drugs did not influence the protein catabolism. Fatty acids oxidation was enhanced through significantly higher acetate concentrations in the groups treated with RCB15 and ABZSO. Beta-hydroxybutyrate concentrations were decreased which indicates the use of fatty acids towards acetyl-CoA synthesis. There was a decrease in glucose uptake and pyruvate concentrations. The absence of lactate indicates the use of pyruvate in gluconeogenesis. Therefore it is possible to conclude that RCB15 enhanced the alternative energetic pathways of cysticerci in vitro exposed to different concentration, with emphasis on the fatty acids catabolism.
Collapse
|
15
|
Nasareth JM, Fraga CM, Lima NF, Picanço GA, Costa TL, Lino-Junior RS, Vinaud MC. In vivo treatment with nitazoxanide induces anaerobic metabolism in experimental intraperitoneal cysticercosis. Parasitol Res 2017; 116:3037-3041. [PMID: 28914356 DOI: 10.1007/s00436-017-5614-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 09/05/2017] [Indexed: 01/23/2023]
Abstract
Taenia crassiceps cysticerci are used as experimental model to study the host-parasite relationship and treatment of cysticercosis. One of the described mode of actions of nitazoxanide (NTZ) is to block the pyruvate ferredoxine oxidoreductase (PFOR) enzyme which is an essential enzyme to the parasite metabolism. The aim of this study was to determine the in vivo influence of one dosage of NTZ on the energetic metabolism of T. crassiceps cysticerci. Thirty days after the intraperitoneal inoculation of T. crassiceps cysticerci, BALB/c mice were orally treated with 7.5 mg/kg of NTZ. The control group was treated with physiologic solution (NaCl 0.9%). After 24 h, the animals were euthanized and the cysticerci were removed, washed, and processed for biochemical analysis. The organic acids detection occurred through high-performance liquid chromatographic and spectrophotometric analysis. While there was no difference in the glucose dosages, it was possible to observe a significant increase in the lactate concentrations and a decrease in the pyruvate concentrations of the NTZ-treated groups when compared to the control group. Also, there was a decrease in the urea and alpha-ketoglutarate concentrations. This probably occurred due to the impairment of the parasite's PFOR and nitroreductases leading an impairment of the mitochondrial aerobic pathways. In conclusion, the in vivo NTZ treatment leads to an increase in the lactic fermentation and to a decrease in the protein catabolism in T. crassiceps cysticerci.
Collapse
Affiliation(s)
- Joelma M Nasareth
- Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Leste Universitário, Goiânia, Goiás, 74605-050, Brazil
| | - Carolina M Fraga
- Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Leste Universitário, Goiânia, Goiás, 74605-050, Brazil
| | - Nayana F Lima
- Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Leste Universitário, Goiânia, Goiás, 74605-050, Brazil
| | - Guaraciara A Picanço
- Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Leste Universitário, Goiânia, Goiás, 74605-050, Brazil
| | - Tatiane L Costa
- Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Leste Universitário, Goiânia, Goiás, 74605-050, Brazil
| | - Ruy S Lino-Junior
- Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Leste Universitário, Goiânia, Goiás, 74605-050, Brazil
| | - Marina Clare Vinaud
- Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Leste Universitário, Goiânia, Goiás, 74605-050, Brazil.
| |
Collapse
|
16
|
Pérez MG, Macchiaroli N, Lichtenstein G, Conti G, Asurmendi S, Milone DH, Stegmayer G, Kamenetzky L, Cucher M, Rosenzvit MC. microRNA analysis of Taenia crassiceps cysticerci under praziquantel treatment and genome-wide identification of Taenia solium miRNAs. Int J Parasitol 2017; 47:643-653. [DOI: 10.1016/j.ijpara.2017.04.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 03/31/2017] [Accepted: 04/03/2017] [Indexed: 12/14/2022]
|
17
|
Zhou F, Du J, Wang J. Albendazole inhibits HIF-1α-dependent glycolysis and VEGF expression in non-small cell lung cancer cells. Mol Cell Biochem 2017; 428:171-178. [PMID: 28063005 DOI: 10.1007/s11010-016-2927-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 12/21/2016] [Indexed: 10/20/2022]
Abstract
Albendazole (ABZ) has an anti-tumor ability and inhibits HIF-1α activity. HIF-1α is associated with glycolysis and vascular endothelial cell growth factor (VEGF) expression, which plays an important role in cancer progression. These clues indicate that ABZ exerts an anti-cancer effect by regulating glycolysis and VEGF expression. The aim of this study is to clarify the effects of ABZ on non-small cell lung cancer (NSCLC) cells and explore the underlying molecular mechanisms. The expression levels of HIF-1α and VEGF were detected using western blot analysis, and the effect of ABZ on glycolysis was evaluated by measuring the relative activities of hexokinase (HK), pyruvate kinase (PK), and lactate dehydrogenase (LDH) and detecting the production of lactate in A549 and H1299 cells. The results showed that ABZ decreased the expression levels of HIF-1α and VEGF and suppressed glycolysis in under hypoxia, but not normoxic condition. Inhibiting HIF-1α also suppressed glycolysis and VEGF expression. Additionally, ABZ inhibited the volume and weight, decreased the relative activities of HK, PK, and LDH, and reduced the levels of HIF-1α and VEGF of A549 xenografts in mouse models. In conclusion, ABZ inhibited growth of NSCLC cells by suppressing HIF-1α-dependent glycolysis and VEGF expression.
Collapse
Affiliation(s)
- Fang Zhou
- Department of Oncology, Huaihe Hospital of Henan University, No. 8 Baobei Road, Kaifeng, 475000, China.
| | - Jin Du
- Department of Respiration, Huaihe Hospital of Henan University, Kaifeng, 475000, China
| | - Jianjun Wang
- Department of Oncology, Huaihe Hospital of Henan University, No. 8 Baobei Road, Kaifeng, 475000, China
| |
Collapse
|
18
|
A benzimidazole derivative (RCB20) in vitro induces an activation of energetic pathways on Taenia crassiceps (ORF strain) cysticerci. Exp Parasitol 2017; 172:12-17. [DOI: 10.1016/j.exppara.2016.11.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 11/08/2016] [Accepted: 11/18/2016] [Indexed: 11/24/2022]
|
19
|
Nitazoxanide induces in vitro metabolic acidosis in Taenia crassiceps cysticerci. Exp Parasitol 2016; 171:17-22. [DOI: 10.1016/j.exppara.2016.10.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 10/10/2016] [Accepted: 10/13/2016] [Indexed: 12/14/2022]
|
20
|
Kamau GN, Mazzochette Z, Kahi HK, Mugweru A. Reduction of Anthelmintic Drug (Methyl [1]carbamate-albendazole) on Gold Electrodes in Aprotic Solvent: Analysis of Chromatographic Reduction Products. ELECTROANAL 2016. [DOI: 10.1002/elan.201600140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Geoffrey N. Kamau
- Department of Chemistry; School of Physical Sciences; College of Biological and Physical Sciences; University of Nairobi; P. O. Box 30197-00100 Nairobi Kenya
| | - Zahilis Mazzochette
- Department of Biochemistry and Chemistry; Rowan University; 201 Mullica Hill Rd Glassboro New Jersey 08028 USA
| | - Helen K. Kahi
- Department of Chemistry; School of Physical Sciences; College of Biological and Physical Sciences; University of Nairobi; P. O. Box 30197-00100 Nairobi Kenya
| | - Amos Mugweru
- Department of Biochemistry and Chemistry; Rowan University; 201 Mullica Hill Rd Glassboro New Jersey 08028 USA
| |
Collapse
|
21
|
Silva LD, Arrúa EC, Pereira DA, Fraga CM, Costa TLD, Hemphill A, Salomon CJ, Vinaud MC. Elucidating the influence of praziquantel nanosuspensions on the in vivo metabolism of Taenia crassiceps cysticerci. Acta Trop 2016; 161:100-5. [PMID: 27269203 DOI: 10.1016/j.actatropica.2016.06.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 05/24/2016] [Accepted: 06/03/2016] [Indexed: 12/21/2022]
Abstract
The aim of this work was to develop nanosuspensions of praziquantel (PZQ) and to evaluate their influence on the energetic metabolism of cysticerci inoculated in BALB/c mice. We analyzed metabolic alterations of glycolytic pathways and the tricarboxylic acid cycle in the parasite. The nanosuspensions were prepared by precipitation and polyvinyl alcohol (PVA), poloxamer 188 (P188) and poloxamer 407 (P407) were used as stabilizers. Nanosuspension prepared with PVA had a particle size of 100nm, while P188- and P407-based nanosuspensions had particle sizes of 74nm and 285nm, respectively. The zeta potential was -8.1, -8.6, and -13.2 for the formulations stabilized with PVA, P188 and P407, respectively. Treatments of T. crassiceps cysticerci-infected mice resulted in an increase in glycolysis organic acids, and enhanced the partial reversion of the tricarboxylic acid cycle, the urea cycle and the production of ketonic bodies in the parasites when compared to the groups treated with conventional PZQ. These data suggest that PZQ nanosuspensions greatly modified the energetic metabolism of cysticerci in vivo. Moreover, the remarkable metabolic alterations produced by the stabilizers indicate that further studies on nanoformulations are required to find potentially suitable nanomedicines.
Collapse
|
22
|
Alternative energy production pathways in Taenia crassiceps cysticerci in vitro exposed to a benzimidazole derivative (RCB20). Parasitology 2015; 143:488-93. [DOI: 10.1017/s0031182015001729] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
SUMMARYBiochemical studies of benzimidazole derivatives are important to determine their mode of action and activity against parasites. The lack of antihelminthic alternatives to treat parasitic infections and albendazole resistance cases make the search for new antiparasitary drugs of utmost importance. The 6-chloro-5-(1-naphthyloxy)-2-(trifluoromethyl)-1H-benzimidazole (RCB20) is a benzimidazole derivative with promising effect. This study evaluated the effect of different concentrations of RCB20 in the alternative energetic pathway of in vitro Taenia crassiceps cysticerci. The parasites were in vitro exposed to 6·5 and 13 µm of RCB20 and albendazole sulfoxide (ABZSO). The quantification of acetate, acetoacetate, β-hydroxybutyrate, fumarate and propionate was performed by high-performance liquid chromatography. The quantification of urea, creatinine and total proteins was performed by spectrophotometry. The increase in β-hydroxybutyrate reflects the enhancement of the fatty acid oxidation in the treated groups. Volatile fatty acids secretion, acetate and propionate, was increased in the treated groups. The secretion mechanisms of the treated parasites were impaired due to organic acids increased concentrations in the cysticerci. It is possible to conclude that the metabolic effect on alternative energetic pathways is slightly increased in the parasites treated with RCB20 than the ones treated with ABZSO.
Collapse
|
23
|
Argüello-García R, Cruz-Soto M, González-Trejo R, Paz-Maldonado LMT, Bazán-Tejeda ML, Mendoza-Hernández G, Ortega-Pierres G. An antioxidant response is involved in resistance of Giardia duodenalis to albendazole. Front Microbiol 2015; 6:286. [PMID: 25914688 PMCID: PMC4392323 DOI: 10.3389/fmicb.2015.00286] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Accepted: 03/23/2015] [Indexed: 12/16/2022] Open
Abstract
Albendazole (ABZ) is a therapeutic benzimidazole used to treat giardiasis that targets β-tubulin. However, the molecular bases of ABZ resistance in Giardia duodenalis are not understood because β-tubulin in ABZ-resistant clones lacks mutations explaining drug resistance. In previous work we compared ABZ-resistant (1.35, 8, and 250 μM) and ABZ-susceptible clones by proteomic analysis and eight proteins involved in energy metabolism, cytoskeleton dynamics, and antioxidant response were found as differentially expressed among the clones. Since ABZ is converted into sulphoxide (ABZ-SO) and sulphone (ABZ-SOO) metabolites we measured the levels of these metabolites, the antioxidant enzymes and free thiols in the susceptible and resistant clones. Production of reactive oxygen species (ROS) and levels of ABZ-SO/ABZ-SOO induced by ABZ were determined by fluorescein diacetate-based fluorescence and liquid chromatography respectively. The mRNA and protein levels of antioxidant enzymes (NADH oxidase, peroxiredoxin 1a, superoxide dismutase and flavodiiron protein) in these clones were determined by RT-PCR and proteomic analysis. The intracellular sulfhydryl (R-SH) pool was quantified using dinitrobenzoic acid. The results showed that ABZ induced ROS accumulation in the ABZ-susceptible Giardia cultures but not in the resistant ones whilst the accumulation of ABZ-SO and ABZ-SOO was lower in all ABZ-resistant cultures. Consistent with these findings, all the antioxidant enzymes detected and analyzed were upregulated in ABZ-resistant clones. Likewise the R-SH pool increased concomitantly to the degree of ABZ-resistance. These results indicate an association between accumulation of ABZ metabolites and a pro-oxidant effect of ABZ in Giardia-susceptible clones. Furthermore the antioxidant response involving ROS-metabolizing enzymes and intracellular free thiols in ABZ-resistant parasites suggest that this response may contribute to overcome the pro-oxidant cytotoxicity of ABZ.
Collapse
Affiliation(s)
- Raúl Argüello-García
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados Instituto Politécnico Nacional, Mexico City Mexico
| | | | - Rolando González-Trejo
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados Instituto Politécnico Nacional, Mexico City Mexico
| | - Luz María T Paz-Maldonado
- Ingeniería de Biorreactores, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, San Luis Potosí Mexico
| | - M Luisa Bazán-Tejeda
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados Instituto Politécnico Nacional, Mexico City Mexico
| | - Guillermo Mendoza-Hernández
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City Mexico
| | - Guadalupe Ortega-Pierres
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados Instituto Politécnico Nacional, Mexico City Mexico
| |
Collapse
|
24
|
Aleyasin H, Karuppagounder SS, Kumar A, Sleiman S, Basso M, Ma T, Siddiq A, Chinta SJ, Brochier C, Langley B, Haskew-Layton R, Bane SL, Riggins GJ, Gazaryan I, Starkov AA, Andersen JK, Ratan RR. Antihelminthic benzimidazoles are novel HIF activators that prevent oxidative neuronal death via binding to tubulin. Antioxid Redox Signal 2015; 22:121-34. [PMID: 24766300 PMCID: PMC4281859 DOI: 10.1089/ars.2013.5595] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AIMS Pharmacological activation of the adaptive response to hypoxia is a therapeutic strategy of growing interest for neurological conditions, including stroke, Huntington's disease, and Parkinson's disease. We screened a drug library with known safety in humans using a hippocampal neuroblast line expressing a reporter of hypoxia-inducible factor (HIF)-dependent transcription. RESULTS Our screen identified more than 40 compounds with the ability to induce hypoxia response element-driven luciferase activity as well or better than deferoxamine, a canonical activator of hypoxic adaptation. Among the chemical entities identified, the antihelminthic benzimidazoles represented one pharmacophore that appeared multiple times in our screen. Secondary assays confirmed that antihelminthics stabilized the transcriptional activator HIF-1α and induced expression of a known HIF target gene, p21(cip1/waf1), in post-mitotic cortical neurons. The on-target effect of these agents in stimulating hypoxic signaling was binding to free tubulin. Moreover, antihelminthic benzimidazoles also abrogated oxidative stress-induced death in vitro, and this on-target effect also involves binding to free tubulin. INNOVATION AND CONCLUSIONS These studies demonstrate that tubulin-binding drugs can activate a component of the hypoxic adaptive response, specifically the stabilization of HIF-1α and its downstream targets. Tubulin-binding drugs, including antihelminthic benzimidazoles, also abrogate oxidative neuronal death in primary neurons. Given their safety in humans and known ability to penetrate into the central nervous system, antihelminthic benzimidazoles may be considered viable candidates for treating diseases associated with oxidative neuronal death, including stroke.
Collapse
Affiliation(s)
- Hossein Aleyasin
- 1 Burke-Cornell Medical Research Institute , White Plains, New York
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Lü G, Zhang W, Wang J, Xiao Y, Zhao J, Zhao J, Sun Y, Zhang C, Wang J, Lin R, Liu H, Zhang F, Wen H. Application of a cDNA microarray for profiling the gene expression of Echinococcus granulosus protoscoleces treated with albendazole and artemisinin. Mol Biochem Parasitol 2014; 198:59-65. [PMID: 25555682 DOI: 10.1016/j.molbiopara.2014.12.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 12/18/2014] [Accepted: 12/20/2014] [Indexed: 12/01/2022]
Abstract
Cystic echinoccocosis (CE) is a neglected zoonosis that is caused by the dog-tapeworm Echinococcus granulosus. The disease is endemic worldwide. There is an urgent need for searching effective drug for the treatment of the disease. In this study, we sequenced a cDNA library constructed using RNA isolated from oncospheres, protoscoleces, cyst membrane and adult worms of E. granulosus. A total of 9065 non-redundant or unique sequences were obtained and spotted on chips as uniEST probes to profile the gene expression in protoscoleces of E. granulosus treated with the anthelmintic drugs albendazole and artemisinin, respectively. The results showed that 7 genes were up-regulated and 38 genes were down-regulated in the protoscoleces treated with albendazole. Gene analysis showed that these genes are responsible for energy metabolism, cell cycle and assembly of cell structure. We also identified 100 genes up-regulated and 6 genes down-regulated in the protoscoleces treated with artemisinin. These genes play roles in the transduction of environmental signals, and metabolism. Albendazole appeared its drug efficacy in damaging cell structure, while artemisinin was observed to increase the formation of the heterochromatin in protoscolex cells. Our results highlight the utility of using cDNA microarray methods to detect gene expression profiles of E. granulosus and, in particular, to understand the pharmacologic mechanism of anti-echinococcosis drugs.
Collapse
Affiliation(s)
- Guodong Lü
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, No. 14 Shengli Road, Urumqi, Xinjiang, PR China; Xinjiang Key Laboratory of Echinococcosis, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, No. 137 Liyushan South Road, Urumqi, Xinjiang, PR China
| | - Wenbao Zhang
- Xinjiang Key Laboratory of Echinococcosis, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, No. 137 Liyushan South Road, Urumqi, Xinjiang, PR China
| | - Jianhua Wang
- Department of Pharmacy, The First Affiliated Hospital of Xinjiang Medical University, No. 137 Liyushan South Road, Urumqi, Xinjiang, PR China
| | - Yunfeng Xiao
- Department of Pharmacy, The First Affiliated Hospital of Xinjiang Medical University, No. 137 Liyushan South Road, Urumqi, Xinjiang, PR China
| | - Jun Zhao
- Department of Pharmacy, The First Affiliated Hospital of Xinjiang Medical University, No. 137 Liyushan South Road, Urumqi, Xinjiang, PR China
| | - Jianqin Zhao
- National Engineering Research Center for Beijing Biochip Technology, No. 18 Life Science Parkway, Beijing, PR China
| | - Yimin Sun
- National Engineering Research Center for Beijing Biochip Technology, No. 18 Life Science Parkway, Beijing, PR China
| | - Chuanshan Zhang
- Xinjiang Key Laboratory of Echinococcosis, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, No. 137 Liyushan South Road, Urumqi, Xinjiang, PR China
| | - Junhua Wang
- Xinjiang Key Laboratory of Echinococcosis, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, No. 137 Liyushan South Road, Urumqi, Xinjiang, PR China
| | - Renyong Lin
- Xinjiang Key Laboratory of Echinococcosis, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, No. 137 Liyushan South Road, Urumqi, Xinjiang, PR China
| | - Hui Liu
- Xinjiang Key Laboratory of Echinococcosis, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, No. 137 Liyushan South Road, Urumqi, Xinjiang, PR China
| | - Fuchun Zhang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, No. 14 Shengli Road, Urumqi, Xinjiang, PR China
| | - Hao Wen
- Xinjiang Key Laboratory of Echinococcosis, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, No. 137 Liyushan South Road, Urumqi, Xinjiang, PR China.
| |
Collapse
|
26
|
Palomares-Alonso F, Palencia Hernández G, Rojas-Tomé IS, Jung-Cook H, Pinzón-Estrada E. Murine cysticercosis model: influence of the infection time and the time of treatment on the cysticidal efficacy of albendazole and praziquantel. Exp Parasitol 2014; 149:1-6. [PMID: 25500213 DOI: 10.1016/j.exppara.2014.12.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 10/15/2014] [Accepted: 12/02/2014] [Indexed: 10/24/2022]
Abstract
In the search of new alternatives for neurocysticercosis treatment, Taenia crassiceps ORF strain cysticerci have been used instead of T. solium for in vitro studies. Up to date, the main criteria for the use of the murine cysticercosis model for drug efficacy evaluation have not been assessed. The aim of the present study was to evaluate the influence of two of the main variables related to the in vivo efficacy: the length of drug treatment and the starting time of treatment after experimental infection, using albendazole (ABZ) and praziquantel (PZQ) as test drugs. Additionally, the relationship between the number of cysts and the parasite weight was assessed. For the study, female BALB/c mice were experimentally infected with T. crassiceps cysts. Three different post-infection periods (10, 20 and 30 days) and three different lengths of treatment with ABZ or PZQ (10, 20 and 30 days) were selected. The efficacy of each treatment was evaluated by comparison with a control group. Our results show that for in vivo efficacy studies, the best time to start the drug treatment is 10 days post-infection and that a minimum of 20 days of treatment is required when ABZ or PZQ are used as positive control. Moreover, in this model the parasite weight can be used as a rapid tool to measure the in vivo drug activity.
Collapse
Affiliation(s)
- Francisca Palomares-Alonso
- Laboratorio de Neuropsicofarmacología, Instituto Nacional de Neurología y Neurocirugía, México D.F. 14269, México
| | | | - Irma Susana Rojas-Tomé
- Laboratorio de Neuropsicofarmacología, Instituto Nacional de Neurología y Neurocirugía, México D.F. 14269, México
| | - Helgi Jung-Cook
- Laboratorio de Neuropsicofarmacología, Instituto Nacional de Neurología y Neurocirugía, México D.F. 14269, México; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, México D.F. 04510, México.
| | - Enrique Pinzón-Estrada
- Facultad de Medicina, Departamento de Bioterio, Universidad Nacional Autónoma de México, México D.F. 04510, México
| |
Collapse
|
27
|
de Almeida Leandro L, Fraga CM, de Souza Lino R, Vinaud MC. Partial reverse of the TCA cycle is enhanced in Taenia crassiceps experimental neurocysticercosis after in vivo treatment with anthelminthic drugs. Parasitol Res 2014; 113:1313-7. [PMID: 24481905 DOI: 10.1007/s00436-014-3770-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 01/10/2014] [Indexed: 12/12/2022]
Abstract
Neurocysticercosis (NCC) is the most common helminthic infection and neglected disease of the central nervous system. It is the leading cause of acquired epilepsy and seizures worldwide. Therefore, to study this important neglected disease, it is important to use experimental models. There is no report in the literature on how the parasite's metabolism reacts to antihelminthic treatment when it is still within the central nervous system of the host. Therefore, the aim of this study was to investigate the energetic metabolism of cysticerci experimentally inoculated in the encephala of BALB/c mice after treatment with low dosages (not sufficient to kill the parasite) of albendazole (ABDZ) and praziquantel (PZQ). BALB/c mice were intracranially inoculated with Taenia crassiceps cysticerci and, after 30 days, received treatment with low dosages of ABDZ and PZQ. After 24 h of treatment, the mice were euthanized, and the cysticerci were removed and analyzed through high-performance liquid chromatography (HPLC) to quantify the organic acids related to the energetic metabolism of the parasite. The partial reverse of the TCA cycle was enhanced by the ABDZ and PZQ treatments both with the higher dosage, as the organic acids of this pathway were significantly increased when compared to the control group and to the other dosages. In conclusion, it was possible to detect the increase of this pathway in the parasites that were exposed to low dosages of ABDZ and PZQ, as it is a mechanism that would amplify the energy production in a hostile environment.
Collapse
Affiliation(s)
- Leticia de Almeida Leandro
- Tropical Pathology and Public Health Institute, Federal University of Goiás, Rua 235 s/n, Setor Universitário, Goiás, 74650-050, Brazil
| | | | | | | |
Collapse
|
28
|
Paz-Maldonado MT, Argüello-García R, Cruz-Soto M, Mendoza-Hernández G, Ortega-Pierres G. Proteomic and transcriptional analyses of genes differentially expressed in Giardia duodenalis clones resistant to albendazole. INFECTION GENETICS AND EVOLUTION 2012; 15:10-7. [PMID: 23022713 DOI: 10.1016/j.meegid.2012.08.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Revised: 08/27/2012] [Accepted: 08/28/2012] [Indexed: 11/29/2022]
Abstract
In this study we performed proteomic and transcriptional analyses to identify and characterize genes differentially expressed in Giardia duodenalis clones resistant to albendazole. The expression of proteins and their corresponding mRNAs was analyzed in clones resistant in vitro to different concentrations of albendazole (1.35, 8.0 and 250 μM) and these were compared with albendazole-sensitive clones using two approaches: (1) two-dimensional protein electrophoresis to analyze the proteome by the LC-MS/MS technique, and (2) semi-quantitative RT-PCR to assess the mRNA levels of proteins with the highest levels of differential expression .This strategy allowed the identification of eight proteins differentially expressed in albendazole resistant clones with roles in: (a) the cytoskeletal system (alpha 2-giardin and RanBP1), (b) the antioxidant metabolism (NADH oxidase) and (c) energy metabolism (triosephosphate isomerase, phosphoglycerate kinase and ornithine carbamoyltransferase). Gene expression analyses of these genes correlated well with the proteomics results. These observations suggest that resistance to albendazole in Giardia encompasses a complex response involving an altered expression of genes regulated at the transcriptional level that might have an important role in maintaining cell structural stability, coping with oxidative stress and adapting energy supply to a new metabolic status. These molecules are indeed promising targets for drug development.
Collapse
Affiliation(s)
- María Teresita Paz-Maldonado
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados-IPN, 07360 Mexico City, Mexico
| | | | | | | | | |
Collapse
|
29
|
Fatty acids oxidation and alternative energy sources detected in Taenia crassiceps cysticerci after host treatment with antihelminthic drugs. Exp Parasitol 2012; 131:111-5. [PMID: 22465501 DOI: 10.1016/j.exppara.2012.03.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 02/27/2012] [Accepted: 03/15/2012] [Indexed: 11/20/2022]
Abstract
Human cysticercosis caused by Taenia crassiceps is rare however it is considered of zoonotic risk. The treatment of the infected patients was successful when using albendazole or praziquantel. The active forms of albendazole inhibit the glucose uptake and the active forms of praziquantel alter glycogen levels and nutrients absorption. The aim of this study was to analyze the production of organic acids that indicate the oxidation of fatty acids and the use of alternative energy sources from T. crassiceps cysticerci removed from the peritoneal cavity of mice treated with low dosages of albendazole (5.75 and 11.5mg/kg) or praziquantel (3.83 and 7.67 mg/kg). The beta-hydroxibutyrate production was higher by the larval stage cysticerci in all treated groups and the propionate production was higher in final stage cysticerci treated with 11.5mg/kg of albendazole when compared to the control group. The larval stages of cysticerci from the groups treated with 5.75 mg/kg of albendazole and 3.83 mg/kg of praziquantel produced more urea than the initial and final stages which indicate amino acids breakdown. We conclude that it was possible to detect the fatty acid oxidation and amino acids breakdown which indicate the use of alternative energy production sources as the used dosages only cause a partial blockage of the glucose uptake and leads to metabolic alterations in the cysticerci. The metabolic behavior observed after host treatment was different from former descriptions of the in vitro one which indicates great host-parasite interaction.
Collapse
|
30
|
Matos-Silva H, Reciputti BP, Paula ECD, Oliveira AL, Moura VBL, Vinaud MC, Oliveira MAP, Lino-Júnior RDS. Experimental encephalitis caused by Taenia crassiceps cysticerci in mice. ARQUIVOS DE NEURO-PSIQUIATRIA 2012; 70:287-92. [PMID: 22358311 DOI: 10.1590/s0004-282x2012005000010] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Accepted: 11/01/2011] [Indexed: 11/22/2022]
Abstract
OBJECTIVES To present the experimental model of neurocysticercosis (NCC) caused by Taenia crassiceps cysticerci, to describe the inflammatory process, susceptibility, or resistance of BALB/c and C57BL/6 mice to this infection, and to describe the host-parasite relationship. METHODS The animals were intracranially inoculated with initial stage T. crassiceps cysticerci. They were euthanized at 7, 30, 60, and 90 days after the inoculation. Their encephala were removed for the histopathologic analysis, classification of the parasites, and inflammatory lesions. RESULTS Experimental NCC was observed on both mice lineages. BALB/c mice presented inflammatory lesions with greater intensity, inducing necrosis on late stage parasites, and with an acute inflammation pattern, while C57BL/6 mice showed greater capability on provoking early necrosis in the cysticerci, which showed a chronic inflammation pattern. CONCLUSIONS This experimental model induced NCC on mice with characteristic inflammation and lesions. C57BL/6 mice were able to induce precocious necrosis of the parasites presenting inflammatory lesions with lower intensity.
Collapse
Affiliation(s)
- Hidelberto Matos-Silva
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Fraga CM, Costa TL, Bezerra JCB, de Souza Lino R, Vinaud MC. Taenia crassiceps: host treatment alters glycolisis and tricarboxilic acid cycle in cysticerci. Exp Parasitol 2011; 130:146-51. [PMID: 22127328 DOI: 10.1016/j.exppara.2011.11.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2011] [Revised: 11/05/2011] [Accepted: 11/15/2011] [Indexed: 11/17/2022]
Abstract
Human cysticercosis by Taenia crassiceps is rare although it is considered of zoonotic risk, especially to immunocompromised individuals. Albendazole and praziquantel are widely used and effective in its treatment. Their active forms inhibit the glucose uptake by the parasite and induce muscle contractions that alter its glycogen levels interfering in the energetic metabolism of the parasite and leading to its death. The aim of this study was to evaluate alterations in glycolysis, the tricarboxylic acid cycle and glucose concentrations caused by low dosage treatments of the hosts with albendazole and praziquantel. Therefore, T. crassiceps intraperitoneally infected mice were treated by gavage feeding with 5.75 or 11.5 mg/kg of albendazole and 3.83 or 7.67 mg/kg of praziquantel. The treated mice were euthanized after 24 h and the cysticerci collected were morphologically classified into initial, larval or final phases. Concentrations of the organic acid produced and glucose were evaluated to detect alterations into the glycolysis and the tricarboxylic acid cycle pathways through chromatography and spectrophotometry. The low dosage treatment caused a partial blockage of the glucose uptake by the cysticerci in spite of the non significant difference between its concentrations. An activation of the tricarboxylic acid cycle was noted in the cysticerci that received the treatment due to an increase in the production of citrate, malate and α-ketoglutarate and the consumption of oxaloacetate, succinate and fumarate. The detection of α-ketoglutarate indicates that the cysticerci which were exposed to the drugs after host treatment present different metabolic pathways than the ones previously described after in vitro treatment.
Collapse
Affiliation(s)
- Carolina Miguel Fraga
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Rua 235, s/n, Setor Universitário, Goiânia, Goiás, Brasil CEP: 74650-050, Brazil
| | | | | | | | | |
Collapse
|
32
|
Costa TL, Ribeiro-Dias F, Oliveira MA, Bezerra JC, Vinaud MC. Energetic metabolism of axenic promastigotes of Leishmania (Viannia) braziliensis. Exp Parasitol 2011; 128:438-43. [DOI: 10.1016/j.exppara.2011.05.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Revised: 05/16/2011] [Accepted: 05/17/2011] [Indexed: 11/24/2022]
|
33
|
Mesocestoides corti: morphological features and glycogen mobilization during in vitro differentiation from larva to adult worm. Parasitology 2009; 137:373-84. [PMID: 19814846 DOI: 10.1017/s0031182009991454] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Mesocestodes corti has the capacity to develop from the tetrathyridium (larva) stage to adult worm in vitro by trypsin and serum stimulation. Consequently, it has been used as an experimental model system for studying cestode development, host-parasite relationships and anthelmintic drugs. We describe morphological features in 5 different developmental stages of M. corti obtained in vitro, including larvae from the peritoneal cavity of infected mice, trypsin- and serum-stimulated larvae, elongated parasites as well as segmented and mature worms. It is unambiguously confirmed that sexually mature worms are obtained as a result of this in vitro process of differentiation. Defined cellular regions are present in all stages of development studied, some of them surrounded by a basal lamina. Glycogen is present in the larvae obtained from the mouse peritoneal cavity and in parasites encapsulated in the mouse host liver. Glycogen distribution in the parasite changes on trypsin and serum stimulation to differentiate. We propose that changes in the distribution of neutral polysaccharides in the parenchyma of the parasite at different stages of development and degradation of polysaccharides in the transition from segmented to adult worm are related to energy needs necessary for the cellular processes leading to the mature specimen.
Collapse
|
34
|
Vinaud MC, Ferreira CS, Lino Junior RDS, Bezerra JCB. Taenia crassiceps: Fatty acids oxidation and alternative energy source in in vitro cysticerci exposed to anthelminthic drugs. Exp Parasitol 2009; 122:208-11. [DOI: 10.1016/j.exppara.2009.03.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2008] [Revised: 03/23/2009] [Accepted: 03/27/2009] [Indexed: 10/20/2022]
|