999 resultados para metatietovaranto, Melinda, Kansalliskirjasto, yleiset kirjastot


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Drug-resistance and therapy failure due to drug-drug interactions are the main challenges in current treatment against Human Immunodeficiency Virus (HIV) infection. As such, there is a continuous need for the development of new and more potent anti-HIV drugs. Here we established a high-throughput screen based on the highly permissive TZM-bl cell line to identify novel HIV inhibitors. The assay allows discriminating compounds acting on early and/or late steps of the HIV replication cycle. The platform was used to screen a unique library of secondary metabolites derived from myxobacteria. Several hits with good anti-HIV profiles were identified. Five of the initial hits were tested for their antiviral potency. Four myxobacterial compounds, sulfangolid C, soraphen F, epothilon D and spirangien B, showed EC50 values in the nM range with SI > 15. Interestingly, we found a high amount of overlapping hits compared with a previous screen for Hepatitis C Virus (HCV) using the same library. The unique structures and mode-of-actions of these natural compounds make myxobacteria an attractive source of chemicals for the development of broad-spectrum antivirals. Further biological and structural studies of our initial hits might help recognize smaller drug-like derivatives that in turn could be synthesized and further optimized.

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Ylänimeke: Oppirakennelmia ja periaatteita

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Puheenvuoro FinELib-päivässä 26.5.2004

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Ylänimeke: Yleiset opit ja muutoksen hallinta

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Nelli-portaalin avajaiset 15.9.2004 yliopiston juhlasalissa

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Kirjoitus on osa juhlapuheesta, jonka Krista Berglund piti Suomi-Venäjä -Seuran Helsingin yliopiston osaston johtokunnan puolesta Helsingin yliopiston kirjaston auditoriossa 10.9.2004

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Kirjoituksessa viitataan Helsingin yliopiston kirjastossa syksyllä 2004 avattuun näyttelyyn Suomalaiset filosofit maailmalla - maailman filosofit Suomessa sekä näyttelyn julkaisuun Ajatuksen kulku