Ontology highlight
ABSTRACT:
PROVIDER: PRJNA993109 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Adult zebrafish, in contrast to mammals, are able to regenerate their hearts in response to injury or experimental amputation. Our understanding of the cellular and molecular bases that underlie this process, although fragmentary, has increased significantly over the last years. However, the role of the extracellular matrix (ECM) during zebrafish heartregeneration has been comparatively rarely explored. Here, we set out to characterize theECM protein composition inadult zebrafish hearts, and whether it changed during the regenerative response. For this purpose, we first established a decellularization protocol of adult zebrafish ventricles that significantly enriched the yield of ECM proteins. We then performed proteomic analyses of decellularized control hearts and at different times of regeneration. Our results show a dynamic change in ECM protein composition, most evident at the earliest (7 dayspost-amputation) time-point analyzed. Regeneration associated withsharp increases inspecific ECM proteins, and with an overall decrease in collagens and cytoskeletal proteins. We finally tested by atomic force microscopythat the changes in ECM composition translatedto decreased ECM stiffness. Our cumulative results identify changes in the protein composition and mechanical properties of the zebrafish heart ECM during regeneration.
2019-08-22 | PXD011627 | Pride
Project description:Adult zebrafish, in contrast to mammals, are able to regenerate their hearts in response to injury or experimental amputation. Our understanding of the cellular and molecular bases that underlie this process, although fragmentary, has increased significantly over the last years. However, the role of the extracellular matrix (ECM) during zebrafish heart regeneration has been comparatively rarely explored. Here, we set out to characterize the ECM protein composition in adult zebrafish hearts, and whether it changed during the regenerative response. For this purpose, we first established a decellularization protocol of adult zebrafish ventricles that significantly enriched the yield of ECM proteins. We then performed proteomic analyses of decellularized control hearts and at different times of regeneration. Our results show a dynamic change in ECM protein composition, most evident at the earliest (7 days post-amputation) time-point analyzed. Regeneration associated with sharp increases in specific ECM proteins, and with an overall decrease in collagens and cytoskeletal proteins. We finally tested by atomic force microscopy that the changes in ECM composition translated to decreased ECM stiffness. Our cumulative results identify changes in the protein composition and mechanical properties of the zebrafish heart ECM during regeneration.
2019-08-26 | PXD010092 | Pride
Project description:We set up a zebrafish model to study EVs in vivo by light microscopy, using CD63-pHluorin as a marker. To verify if exosomes from zebrafish have a comparable composition as human exosomes, and to validate the use of CD63 as a marker, we first analysed the compositon of EVs isolated from in vitro cultured fibroblasts (AB.9 ATCC), and could detect the presence of conventional exosome markers, including (zebrafish) CD63. In live embryos, we could track a population of exosomes from their source (the yolk syncytial layer (YSL)) to their final destination by live microscopy. To assess the composition of these exosomes, we dissociated YSL:CD63-pHluorin expressing 3dpf embryos and isolated exosomes from the supernatant and enriched for EVs from the YSL. This was compared to a background of total EVs isolated the control fish (non-expressing).
2019-04-10 | PXD011258 | Pride
Project description:Microbiol community of Solanum lycopersicum Raw sequence reads
| PRJNA736554 | ENA
Project description:The data explore the transcriptional response of strain LY180 and the furfural-resistant derivative EMFR9 to 0.5 g/L furfural LY180 and EMFR9 and differences in their expression profiles are described in Miller, E. N., L. R. Jarboe, L. P. Yomano, S. W. York, K. T. Shanmugam, and L. O. Ingram. 2009. Silencing of NADPH-dependent oxidoreductase genes (yqhD and dkgA) in furfural-resistant ethanologenic Escherichia coli. Appl Environ Microbiol 75:4315-23. The response of LY180 to furfural is described in Miller, E. N., L. R. Jarboe, P. C. Turner, P. Pharkya, L. P. Yomano, S. W. York, D. Nunn, K. T. Shanmugam, and L. O. Ingram. 2009. Furfural Inhibits Growth by Limiting Sulfur Assimilation in Ethanologenic Escherichia coli strain LY180. Appl Environ Microbiol., 2009.
2009-08-25 | GSE17786 | GEO
Project description:Condition specific zebrafish metabolic models generated using the COBRA MetaboTools framework. The Wang et al., (2021) zebrafish genome-scale metabolic model (GEM) was constrained with experimental data from 5 days post fertilized (dpf) zebrafish to generate a 'base-model'.
In turn this 5 dpf zebrafish base-model was constrained with experimental (transcriptomics and metabolomics) data from 5 dpf zebrafish exposed to the environmental pollutant perfluorooctane sulfonate (PFOS), at three levels - Low (0.06 uM), Medium (0.6 uM), and High (2 uM) PFOS.
The MetaboTools framework was used to construct three condition-sepcific models: Low, Medium, and High PFOS.
Key simulation predictions of effects on the carnitine shuttle and lipid metabolism were confirmed in wild-caught fish and dolphins (stranded animals) sampled from the northern Gulf of Mexico - published in Nolen et al., (2024) https://doi.org/10.1016/j.cbpc.2023.109817
2024-03-04 | MODEL2403010004 | BioModels
Project description:The S-layer glycoprotein (SLG) of Haloferax volcanii has been shown to be processed and C-terminally linked to a lipid in an archaeosortase A (ArtA)-dependent manner. A C-terminal tripartite structure including a PGF motif is required for the processing of SLG as well as other substrates (Abdul Halim et al., 2013 Mol Microbiol; Abdul Halim et al., 2016 J Bact; Abdul Halim et al., 2017 J Bact; Abdul Halim et al., 2018 Mol Microbiol). In order to gain insights into the mechanism of processing, different cellular fractions (culture supernatant, membrane) from different strains (WT, ArtA KO mutant, ArtA active site mutants, PssA KO mutant) have been analyzed. C-terminal peptides of SLG as well as peptides spanning the PGF motiv were only identified in the mutants lacking processing activity.
2020-05-11 | PXD011050 | Pride