Intracellular Space
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Sample Annotated Edges 5

a(CHEBI:dopamine) increases a(HBP:HBP00093) View Subject | View Object

DA-mediated α -syn oligomers constitute a range of SDS-resistant species with apparent molecular weights ranging from over 2200 to 200 kDa as determined by SEC (Fig. 4a). PubMed:27075649

a(CHEBI:glutaraldehyde) increases a(HBP:HBP00093) View Subject | View Object

GA-cross-linked α -syn oligomers are also a heterogeneous set of SDS-resistant oligomeric species (Fig. 4b). PubMed:27075649

a(HBP:HBP00092) increases a(CHEBI:"calcium(2+)") View Subject | View Object

1 nM (Fig. 3a, right panels and Fig. 3b, red curve, solid line) and 0.2 nM α -syn fibrils (Fig. 3b, red curve, dashed line) induced a progressive and significant increase of intracellular Ca2+ levels, as revealed by the rise of Fluo-4 fluorescence in exposed SH-SY5Y cells. In contrast, only a modest Ca2+ increase was observed in cells exposed to 300 nM on-fibrillar assembly pathway oligomeric α -syn (Fig. 3a, middle panels and Fig. 3b, blue curve, solid line) or 10 μM monomeric α -syn (Fig. 3a, left panels and Fig. 3b, black curve, solid line). PubMed:27075649

a(HBP:HBP00092) increases bp(GO:"apoptotic process") View Subject | View Object

α -syn fibrils revealed to be highly toxic to cells at all the concentrations we tested, spanning 1 to 0.01 nM (53.4 ± 4% inhibition of MTT reduction at 0.01 nM, i.e. 0.1 μM equivalent monomer concentration) whereas α -syn oligomers only slightly impaired cell viability (23.9 ± 6% inhibition of MTT reduction at 300 nM, i.e. 10 μM initial monomer concentration) (Fig. 3c). PubMed:27075649

a(HBP:HBP00092) negativeCorrelation a(HBP:HBP00093) View Subject | View Object

Increasing amounts of fibrils and a concomitant decrease in the amount of oligomeric species were observed upon longer incubation times (Supplementary Fig. S1). PubMed:27075649


BEL Commons is developed and maintained in an academic capacity by Charles Tapley Hoyt and Daniel Domingo-Fernández at the Fraunhofer SCAI Department of Bioinformatics with support from the IMI project, AETIONOMY. It is built on top of PyBEL, an open source project. Please feel free to contact us here to give us feedback or report any issues. Also, see our Publishing Notes and Data Protection information.

If you find BEL Commons useful in your work, please consider citing: Hoyt, C. T., Domingo-Fernández, D., & Hofmann-Apitius, M. (2018). BEL Commons: an environment for exploration and analysis of networks encoded in Biological Expression Language. Database, 2018(3), 1–11.