Schistosomula exposed to HDAC inhibitor (Trichostatin A) [12hrs]
Ontology highlight
ABSTRACT:
ORGANISM(S): Schistosoma mansoni
PROVIDER: GSE83208 | GEO | 2017/01/31
SECONDARY ACCESSION(S): PRJNA325345
REPOSITORIES: GEO
Similar Datasets
Project description:HDACs inhibitors induces mortality in the parasite Schistosoma mansoni (schistosomula and adult worms), and became an interesting drug class for the development of new drugs to treat schistosomiasis. In order to understand the effect of histone hyperacetylation on the parasite, we tested the effect of the HDAC inhibitor Trichostatin A on schistosomula gene expression.
2017-01-31 | GSE83210 | GEO
Project description:HDACs inhibitors induces mortality in the parasite Schistosoma mansoni (schistosomula and adult worms), and became an interesting drug class for the development of new drugs to treat schistosomiasis. In order to understand the effect of histone hyperacetylation on the parasite, we tested the effect of the HDAC inhibitor Trichostatin A on schistosomula gene expression.
2017-01-31 | GSE83209 | GEO
Project description:Schistosomula exposed to HDAC inhibitor (Trichostatin A)
| PRJNA325300 | ENA
Project description:Schistosoma mansoni is the major causative agent of schistosomiasis in the Americas. This parasite takes advantage from host signaling molecules such as cytokines and hormones to complete its development inside the host. TNF-α is the most important cytokine involved in the inflammatory response when cercaria, the infective stage, penetrates the human skin and a severe inflammatory response is started. In this work the authors describe the complete sequence of a possible TNF-α receptor in S. mansoni and detect that the receptor is most highly expressed in cercaria among all life cycle stages. In an attempt to mimic the situation at the site of skin penetration cercariae have been mechanically transformed in vitro into schistosomula and immediately exposed to human TNF-α . Exposure of these early schistosomula to the human hormone caused a large-scale change in the expression of parasite genes. Exposure of adult worms to human TNF-α caused gene expression changes as well, although the set of parasite altered genes was entirely different from that of schistosomula. This work increases the number of known signaling pathways of the parasite, and opens new perspectives into understanding the molecular components of TNF-α response as well as possibly interfering with parasite-host interaction.
2009-12-15 | GSE16261 | GEO
Project description:Schistosoma mansoni is the major causative agent of schistosomiasis in the Americas. This parasite takes advantage from host signaling molecules such as cytokines and hormones to complete its development inside the host. TNF-α is the most important cytokine involved in the inflammatory response when cercaria, the infective stage, penetrates the human skin and a severe inflammatory response is started. In this work the authors describe the complete sequence of a possible TNF-α receptor in S. mansoni and detect that the receptor is most highly expressed in cercaria among all life cycle stages. In an attempt to mimic the situation at the site of skin penetration cercariae have been mechanically transformed in vitro into schistosomula and immediately exposed to human TNF-α . Exposure of these early schistosomula to the human hormone caused a large-scale change in the expression of parasite genes. Exposure of adult worms to human TNF-α caused gene expression changes as well, although the set of parasite altered genes was entirely different from that of schistosomula. This work increases the number of known signaling pathways of the parasite, and opens new perspectives into understanding the molecular components of TNF-α response as well as possibly interfering with parasite-host interaction.
2009-12-15 | GSE16260 | GEO
Project description:Schistosome parasites lay up to a thousand eggs per day inside the veins of their mammalian hosts. The immature eggs deposited by females against endothelia of venules will embryonate within days. Approximately 30% of the eggs will migrate to the lumen of the intestine to continue the parasite life cycle. Many eggs, however, are trapped in the liver and intestine causing the main pathology associated with schistosomiasis mansoni and japonica, the liver granulomatous response. Excretory/Secretory egg proteins drive much of egg-induced pathogenesis of schistosomiasis mansoni, and Schistosoma japonicum induce a markedly distinct granulomatous response to that of S. mansoni.
2019-09-26 | PXD012835 | Pride
Project description:Migrating schistosomula are an important stage of the schistosome lifecycle and represent a key target for elimination of infection by natural and vaccine induced host immune responses. To gain a better understanding of how these parasites initiate a primary host immune response we have characterised the host lung response to migrating Schistosoma japonicum schistosomula using a combination of histochemistry, microarrays and quantitative cytokine analysis. Our data suggest that, during a S. japonicum infection, actively migrating schistosomula induce a Type-2 cytokine response in the lung that may support the subsequent development of a CD4+ T helper 2 (Th2) response against egg antigens. This hypothesis is supported by the fact that schistosomula and schistosome eggs are known to express important Th2-inducing antigens such as omega-1, peroxiredoxin, kappa-5 and IPSE/alpha1. The host lung response to migrating schistosomula was associated with increased numbers of macrophages and expression of markers for alternatively activated macrophages (AAMφ) in the lung. Activation of AAMφ in the lung and at the systemic level could lead to the modulation of the host immune response to favour parasite survival. Induction of these cells could also contribute to diminished inflammatory responses to, for example, allergy and asthma that are known to be associated with helminth infections. These data enhance our understanding of the mechanisms whereby schistosomes may evade the immune response and the mechanisms by which schistosome infection can help influence the host response following exposure to allergenic stimuli. The gene expression profile of the murine lung was examined at 3 days weeks post infection with 500 Schistosoma japonicum cercariae in comparison to that of uninfected controls. Microarray analysis was performed on cRNA synthesised from total RNA derived from the lungs of 3 individual mice per group.
2011-02-10 | E-GEOD-27171 | biostudies-arrayexpress
Project description:We have examined the gene expression profile of the transformation of the blood fluke Schistosoma mansoni from the cercarial to schistosomula stages. Specifically cercariae were mechanically transformed and then cultured for 3 hours or 5 days, and then total RNA was isolated and microarray analysis performed. A second experiment compares the effect that the presence of red blood cell in the culturing conditions has over the 3 hour and 5 day periods have on the parasite.
2009-10-02 | GSE18335 | GEO
Project description:Schistosomiasis is a parasitic zoonosis which caused by schistosomes and poses great threat to the health of human and other mammals. Schistosome cercaria must penetrate skin as an initial step to successfully infect the final host. Proteolytic enzymes secreted from the acetabular glands of cercaria contribute significantly to the invasion process. In this study, we designed a new cercaria transformation experiment to get the penetrated cercaria (schistosomula), then a gel-free shotgun proteomic analysis were performed to compare the proteomes of cercaria and schistosomula. 1894 and 1002 proteins were identified respectively, 924 proteins were common in both of two samples, almost take up 92% of the total proteins of schistosomula. The identified proteins were closely associated with nine main biological processes through Gene Ontology (GO) categorical analysis. The identification of the proteins potentially related to skin penetration offer a global overview of changes during cercaria skin invasion, providing clues into how they involve in the penetration process. Various proteases and peptidases were detected, and were differentially existed before and after cercaria transformation, suggesting proteases-specific roles and complexity mechanism during invasion.
2017-05-08 | PXD002185 | Pride
Project description:Migrating schistosomula are an important stage of the schistosome lifecycle and represent a key target for elimination of infection by natural and vaccine induced host immune responses. To gain a better understanding of how these parasites initiate a primary host immune response we have characterised the host lung response to migrating Schistosoma japonicum schistosomula using a combination of histochemistry, microarrays and quantitative cytokine analysis. Our data suggest that, during a S. japonicum infection, actively migrating schistosomula induce a Type-2 cytokine response in the lung that may support the subsequent development of a CD4+ T helper 2 (Th2) response against egg antigens. This hypothesis is supported by the fact that schistosomula and schistosome eggs are known to express important Th2-inducing antigens such as omega-1, peroxiredoxin, kappa-5 and IPSE/alpha1. The host lung response to migrating schistosomula was associated with increased numbers of macrophages and expression of markers for alternatively activated macrophages (AAMφ) in the lung. Activation of AAMφ in the lung and at the systemic level could lead to the modulation of the host immune response to favour parasite survival. Induction of these cells could also contribute to diminished inflammatory responses to, for example, allergy and asthma that are known to be associated with helminth infections. These data enhance our understanding of the mechanisms whereby schistosomes may evade the immune response and the mechanisms by which schistosome infection can help influence the host response following exposure to allergenic stimuli.
2011-02-10 | GSE27171 | GEO