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Derakhshani A, Mousavi SM, Rezaei M, Afgar A, Keyhani AR, Mohammadi MA, Dabiri S, Fasihi Harandi M. Natural history of Echinococcus granulosus microcyst development in long term in vitro culture and molecular and morphological changes induced by insulin and BMP-4. Front Vet Sci 2023; 9:1068602. [PMID: 36699324 PMCID: PMC9868913 DOI: 10.3389/fvets.2022.1068602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 12/19/2022] [Indexed: 01/12/2023] Open
Abstract
Introduction Cystic echinococcosis (CE) caused by the cestode Echinococcus granulosus is a disease of worldwide public health and economic importance. The determinants and underlying cellular mechanisms of CE development and fate in intermediate hosts are largely unknown. Hormones and cytokines such as insulin and BMP-4 are the key players in the development, differentiation, and apoptosis. In this study, we evaluated the long term natural history of E. granulosus microcysts in an vitro setting and the molecular and morphological changes induced by the growth factors, insulin and BMP4 during the development of metacestode stage of E. granulosus. Methods E. granulosus protoscoleces were cultivated and the parasite development was followed in the long term mono-phasic culture for 105 days and the morphometric, molecular and immunohistochemical changes were evaluated, including the microcysts number and size, microcysts development and deformation rates as well as the markers of calcification (Alizarin Red staining) and apoptosis (BAX, BCL2, Caspase-3, Caspase-8 and TNF-α expression) in the microcysts. Also the biological, histological and molecular consequences of insulin and BMP-4 treatment on the parasite development were evaluated. Results Insulin and BMP-4 treatment of microcysts resulted in significant increase in microcyst formation, increased size, reduced apoptosis and deformation of the microcysts. Alizarin red staining of the microcysts treated with the insulin and BMP-4 confirmed that calcium deposition is significantly lower than the untreated microcysts. Also Alizarin Red staining and Immunohistochemistry of the microcysts indicates that calcium accumulation in deformed microcysts is higher than the normal ones on day 105. The microcysts began to wrinkle and the germinal layer was partially detached from the laminated layer on day 84. Conclusion Results of the present study suggest that the degenerative changes in hydatid cysts can be slowed down by insulin and BMP-4, indicating that cellular factors and host hormones could contribute to the longevity of hydatid cysts. Significant evidences are provided suggesting that the microcysts cultivated in vitro can undergo calcification and apoptotic processes similar to what have been observed in the natural hydatid infection in the intermediate hosts.
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Affiliation(s)
- Ali Derakhshani
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
| | - Seyed Mohammad Mousavi
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
| | - Masoud Rezaei
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Afgar
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran,Student Research Committee, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Reza Keyhani
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Ali Mohammadi
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
| | - Shahriar Dabiri
- Department of Pathology, Afzalipour Medical School, Pathology and Stem Cells Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Majid Fasihi Harandi
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran,*Correspondence: Majid Fasihi Harandi ✉
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Comparison of different staining methods for determination of viability on Mesocestoides vogae tetrathyridia. Parasitol Res 2018; 118:687-692. [PMID: 30467616 DOI: 10.1007/s00436-018-6143-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 11/12/2018] [Indexed: 10/27/2022]
Abstract
Mesocestoides vogae is widely employed as a model for studying the biology, differentiation, and experimental chemotherapy of cestodes. Currently, there are few techniques to measure the viability of M. vogae metacestodes during pharmacological experiments. The aim of the present work was to evaluate and compare different staining techniques to determine objectively the viability of M. vogae tetrathyridia. Eosin (0.05% w/v), methylene blue (0.01% w/v), propidium iodide (PI, 2 μg/ml), and fluorescein diacetate (FDA, 0.5 μg/ml) solutions were tested against live, heat-killed (cultivated at 65 °C for 2 h) and thymol-treated tetrathyridia (50 and 250 μg/ml). Parasites were counted under a dissecting microscope or a fluorescence compound microscope, as appropriate. Studies by scanning electron microscope were performed to compare the ultrastructural damage with the viability of parasites. After comparing the performance of different dyes, we chose the eosin staining technique because its simplicity, rapidity, sensitivity, low cost and fidelity.
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Camargo de Lima J, Monteiro KM, Basika Cabrera TN, Paludo GP, Moura H, Barr JR, Zaha A, Ferreira HB. Comparative proteomics of the larval and adult stages of the model cestode parasite Mesocestoides corti. J Proteomics 2018; 175:127-135. [PMID: 29317356 PMCID: PMC10486185 DOI: 10.1016/j.jprot.2017.12.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 12/19/2017] [Accepted: 12/29/2017] [Indexed: 01/08/2023]
Abstract
Mesocestoides corti is a widely used model for the study of cestode biology, and its transition from the larval tetrathyridium (TT) stage to the strobilated, adult worm (ST) stage can be induced and followed in vitro. Here, a proteomic approach was used to describe and compare M. corti TT and ST protein repertories. Overall, 571 proteins were identified, 238 proteins in TT samples and 333 proteins in ST samples. Among the identified proteins, 207 proteins were shared by TTs and STs, while 157 were stage-specific, being 31 exclusive from TTs, and 126 from STs. Functional annotation revealed fundamental metabolic differences between the TT and the ST stages. TTs perform functions related mainly to basic metabolism, responsible for growth and vegetative development by asexual reproduction. STs, in contrast, perform a wider range of functions, including macromolecule biosynthetic processes, gene expression and control pathways, which may be associated to its proglottization/segmentation, sexual differentiation and more complex physiology. Furthermore, the generated results provided an extensive list of cestode proteins of interest for functional studies in M. corti. Many of these proteins are novel candidate diagnostic antigens, and/or potential targets for the development of new and more effective antihelminthic drugs. BIOLOGICAL SIGNIFICANCE Cestodiases are parasitic diseases with serious impact on human and animal health. Efforts to develop more effective strategies for diagnosis, treatment or control of cestodiases are impaired by the still limited knowledge on many aspects of cestode biology, including the complex developmental processes that occur in the life cycles of these parasites. Mesocestoides corti is a good experimental model to study the transition from the larval to the adult stage, called strobilation, which occur in typical cestode life-cycles. The performed proteomics approach provided large-scale identification and quantification of M. corti proteins. Many stage-specific or differentially expressed proteins were detected in the larval tetrathyridium (TT) stage and in the strobilated, adult worm (ST) stage. Functional comparative analyses of the described protein repertoires shed light on function and processes associated to specific features of both stages, such as less differentiation and asexual reproduction in TTs, and proglottization/segmentation and sexual differentiation in ST. Moreover, many of the identified stage-specific proteins are useful as cestode developmental markers, and are potential targets for development of novel diagnostic methods and therapeutic drugs for cestodiases.
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Affiliation(s)
- Jeferson Camargo de Lima
- Laboratório de Genômica Estrutural e Funcional, Centro de Biotecnologia (CBiot), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Biologia Celular e Molecular, CBiot, UFRGS, Porto Alegre, RS, Brazil
| | - Karina Mariante Monteiro
- Laboratório de Genômica Estrutural e Funcional, Centro de Biotecnologia (CBiot), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Departamento de Biologia Molecular e Celular, Instituto de Biociências, UFRGS, Porto Alegre, RS, Brazil
| | - Tatiana Noel Basika Cabrera
- Laboratório de Genômica Estrutural e Funcional, Centro de Biotecnologia (CBiot), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Biologia Celular e Molecular, CBiot, UFRGS, Porto Alegre, RS, Brazil
| | - Gabriela Prado Paludo
- Laboratório de Genômica Estrutural e Funcional, Centro de Biotecnologia (CBiot), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Biologia Celular e Molecular, CBiot, UFRGS, Porto Alegre, RS, Brazil
| | - Hercules Moura
- Biological Mass Spectrometry Laboratory, Clinical Chemistry Branch, Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - John R Barr
- Biological Mass Spectrometry Laboratory, Clinical Chemistry Branch, Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Arnaldo Zaha
- Laboratório de Biologia Molecular de Cestódeos, CBiot, UFRGS, Porto Alegre, RS, Brazil; Departamento de Biologia Molecular e Celular, Instituto de Biociências, UFRGS, Porto Alegre, RS, Brazil
| | - Henrique Bunselmeyer Ferreira
- Laboratório de Genômica Estrutural e Funcional, Centro de Biotecnologia (CBiot), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Departamento de Biologia Molecular e Celular, Instituto de Biociências, UFRGS, Porto Alegre, RS, Brazil.
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Basika T, Macchiaroli N, Cucher M, Espínola S, Kamenetzky L, Zaha A, Rosenzvit M, Ferreira HB. Identification and profiling of microRNAs in two developmental stages of the model cestode parasite Mesocestoides corti. Mol Biochem Parasitol 2016; 210:37-49. [DOI: 10.1016/j.molbiopara.2016.08.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 08/15/2016] [Accepted: 08/16/2016] [Indexed: 12/21/2022]
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Hemer S, Konrad C, Spiliotis M, Koziol U, Schaack D, Förster S, Gelmedin V, Stadelmann B, Dandekar T, Hemphill A, Brehm K. Host insulin stimulates Echinococcus multilocularis insulin signalling pathways and larval development. BMC Biol 2014; 12:5. [PMID: 24468049 PMCID: PMC3923246 DOI: 10.1186/1741-7007-12-5] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Accepted: 01/21/2014] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND The metacestode of the tapeworm Echinococcus multilocularis is the causative agent of alveolar echinococcosis, a lethal zoonosis. Infections are initiated through establishment of parasite larvae within the intermediate host's liver, where high concentrations of insulin are present, followed by tumour-like growth of the metacestode in host organs. The molecular mechanisms determining the organ tropism of E. multilocularis or the influences of host hormones on parasite proliferation are poorly understood. RESULTS Using in vitro cultivation systems for parasite larvae we show that physiological concentrations (10 nM) of human insulin significantly stimulate the formation of metacestode larvae from parasite stem cells and promote asexual growth of the metacestode. Addition of human insulin to parasite larvae led to increased glucose uptake and enhanced phosphorylation of Echinococcus insulin signalling components, including an insulin receptor-like kinase, EmIR1, for which we demonstrate predominant expression in the parasite's glycogen storage cells. We also characterized a second insulin receptor family member, EmIR2, and demonstrated interaction of its ligand binding domain with human insulin in the yeast two-hybrid system. Addition of an insulin receptor inhibitor resulted in metacestode killing, prevented metacestode development from parasite stem cells, and impaired the activation of insulin signalling pathways through host insulin. CONCLUSIONS Our data indicate that host insulin acts as a stimulant for parasite development within the host liver and that E. multilocularis senses the host hormone through an evolutionarily conserved insulin signalling pathway. Hormonal host-parasite cross-communication, facilitated by the relatively close phylogenetic relationship between E. multilocularis and its mammalian hosts, thus appears to be important in the pathology of alveolar echinococcosis. This contributes to a closer understanding of organ tropism and parasite persistence in larval cestode infections. Furthermore, our data show that Echinococcus insulin signalling pathways are promising targets for the development of novel drugs.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Klaus Brehm
- University of Würzburg, Institute of Hygiene and Microbiology, Josef-Schneider-Strasse 2, D-97080 Würzburg, Germany.
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